wslay: Sync with upstream 45d22583b

https://github.com/tatsuhiro-t/wslay/commit/45d22583b488f79d5a4e598cc7675c191c5ab53f

Mostly style changes, a couple new methods and fixes.
Tweak file structure a bit.

13 files changed, 842 insertions, 757 deletions

diff --git a/thirdparty/wslay/includes/config.h b/thirdparty/wslay/config.h
index 771ad12528..f291801ba1 100644
--- a/thirdparty/wslay/includes/config.h
+++ b/thirdparty/wslay/config.h
@@ -1,8 +1,10 @@
 #ifndef CONFIG_H
 #define CONFIG_H
 
+// -- GODOT start --
 #ifdef BIG_ENDIAN_ENABLED
 #define WORDS_BIGENDIAN
 #endif
+// -- GODOT end --
 
 #endif /* CONFIG_H */
diff --git a/thirdparty/wslay/msvcfix.diff b/thirdparty/wslay/patches/msvcfix.diff
index 28721844f4..f58b6d44f0 100644
--- a/thirdparty/wslay/msvcfix.diff
+++ b/thirdparty/wslay/patches/msvcfix.diff
@@ -1,8 +1,8 @@
 diff --git a/thirdparty/wslay/includes/wslay/wslay.h b/thirdparty/wslay/includes/wslay/wslay.h
-index 2fde81a4e..9c751b05b 100644
+index 77a4e8253f..ac6873613f 100644
 --- a/thirdparty/wslay/includes/wslay/wslay.h
 +++ b/thirdparty/wslay/includes/wslay/wslay.h
-@@ -33,6 +33,12 @@ extern "C" {
+@@ -33,6 +33,13 @@ extern "C" {
  #include <stdlib.h>
  #include <sys/types.h>
  
@@ -12,6 +12,7 @@ index 2fde81a4e..9c751b05b 100644
 +typedef SSIZE_T ssize_t;
 +#endif
 +/* GODOT END */
- 
++
  /*
   * wslay/wslayver.h is generated from wslay/wslayver.h.in by
+  * configure. The projects which do not use autotools can set
diff --git a/thirdparty/wslay/includes/wslay/wslay.h b/thirdparty/wslay/wslay/wslay.h
index 9c751b05b7..ac6873613f 100644
--- a/thirdparty/wslay/includes/wslay/wslay.h
+++ b/thirdparty/wslay/wslay/wslay.h
@@ -25,7 +25,7 @@
 #ifndef WSLAY_H
 #define WSLAY_H
 
-#ifdef  __cplusplus
+#ifdef __cplusplus
 extern "C" {
 #endif
 
@@ -155,10 +155,10 @@ enum wslay_opcode {
  * These macros assume that rsv is constructed by ((RSV1 << 2) |
  * (RSV2 << 1) | RSV3)
  */
-#define WSLAY_RSV_NONE ((uint8_t) 0)
-#define WSLAY_RSV1_BIT (((uint8_t) 1) << 2)
-#define WSLAY_RSV2_BIT (((uint8_t) 1) << 1)
-#define WSLAY_RSV3_BIT (((uint8_t) 1) << 0)
+#define WSLAY_RSV_NONE ((uint8_t)0)
+#define WSLAY_RSV1_BIT (((uint8_t)1) << 2)
+#define WSLAY_RSV2_BIT (((uint8_t)1) << 1)
+#define WSLAY_RSV3_BIT (((uint8_t)1) << 0)
 
 #define wslay_get_rsv1(rsv) ((rsv >> 2) & 1)
 #define wslay_get_rsv2(rsv) ((rsv >> 1) & 1)
@@ -172,7 +172,7 @@ struct wslay_frame_iocb {
    * RFC6455 requires 0 unless extensions are negotiated.
    */
   uint8_t rsv;
- /* 4 bit opcode */
+  /* 4 bit opcode */
   uint8_t opcode;
   /* payload length [0, 2**63-1] */
   uint64_t payload_length;
@@ -229,6 +229,33 @@ ssize_t wslay_frame_send(wslay_frame_context_ptr ctx,
                          struct wslay_frame_iocb *iocb);
 
 /*
+ * Write WebSocket frame specified in iocb to buf of length
+ * buflen. ctx must be initialized using wslay_frame_context_init()
+ * function.  iocb->fin must be 1 if this is a fin frame, otherwise 0.
+ * iocb->rsv is reserved bits.  iocb->opcode must be the opcode of
+ * this frame.  iocb->mask must be 1 if this is masked frame,
+ * otherwise 0.  iocb->payload_length is the payload_length of this
+ * frame.  iocb->data must point to the payload data to be
+ * sent. iocb->data_length must be the length of the data.  Unlike
+ * wslay_frame_send, this function does not call send_callback
+ * function.  This function calls gen_mask_callback function if it
+ * needs new mask key.  This function returns the number of bytes
+ * written to a buffer.  Unlike wslay_frame_send, it includes the
+ * number of header bytes.  Instead, the number of payload bytes
+ * written is assigned to *pwpayloadlen if this function succeeds.  If
+ * there is not enough space left in a buffer, it returns 0.  If the
+ * library detects error in iocb, this function returns
+ * WSLAY_ERR_INVALID_ARGUMENT.  If callback functions report a
+ * failure, this function returns WSLAY_ERR_INVALID_CALLBACK.  This
+ * function does not always send all given data in iocb.  If there are
+ * remaining data to be sent, adjust data and data_length in iocb
+ * accordingly and call this function again.
+ */
+ssize_t wslay_frame_write(wslay_frame_context_ptr ctx,
+                          struct wslay_frame_iocb *iocb, uint8_t *buf,
+                          size_t buflen, size_t *pwpayloadlen);
+
+/*
  * Receives WebSocket frame and stores it in iocb.  This function
  * returns the number of payload bytes received.  This does not
  * include header bytes. In this case, iocb will be populated as
@@ -276,9 +303,9 @@ struct wslay_event_on_msg_recv_arg {
  * Callback function invoked by wslay_event_recv() when a message is
  * completely received.
  */
-typedef void (*wslay_event_on_msg_recv_callback)
-(wslay_event_context_ptr ctx,
- const struct wslay_event_on_msg_recv_arg *arg, void *user_data);
+typedef void (*wslay_event_on_msg_recv_callback)(
+    wslay_event_context_ptr ctx, const struct wslay_event_on_msg_recv_arg *arg,
+    void *user_data);
 
 struct wslay_event_on_frame_recv_start_arg {
   /* fin bit; 1 for final frame, or 0. */
@@ -296,9 +323,9 @@ struct wslay_event_on_frame_recv_start_arg {
  * starts to be received. This callback function is only invoked once
  * for each frame.
  */
-typedef void (*wslay_event_on_frame_recv_start_callback)
-(wslay_event_context_ptr ctx,
- const struct wslay_event_on_frame_recv_start_arg *arg, void *user_data);
+typedef void (*wslay_event_on_frame_recv_start_callback)(
+    wslay_event_context_ptr ctx,
+    const struct wslay_event_on_frame_recv_start_arg *arg, void *user_data);
 
 struct wslay_event_on_frame_recv_chunk_arg {
   /* chunk of payload data */
@@ -311,16 +338,16 @@ struct wslay_event_on_frame_recv_chunk_arg {
  * Callback function invoked by wslay_event_recv() when a chunk of
  * frame payload is received.
  */
-typedef void (*wslay_event_on_frame_recv_chunk_callback)
-(wslay_event_context_ptr ctx,
- const struct wslay_event_on_frame_recv_chunk_arg *arg, void *user_data);
+typedef void (*wslay_event_on_frame_recv_chunk_callback)(
+    wslay_event_context_ptr ctx,
+    const struct wslay_event_on_frame_recv_chunk_arg *arg, void *user_data);
 
 /*
  * Callback function invoked by wslay_event_recv() when a frame is
  * completely received.
  */
-typedef void (*wslay_event_on_frame_recv_end_callback)
-(wslay_event_context_ptr ctx, void *user_data);
+typedef void (*wslay_event_on_frame_recv_end_callback)(
+    wslay_event_context_ptr ctx, void *user_data);
 
 /*
  * Callback function invoked by wslay_event_recv() when it wants to
@@ -394,9 +421,9 @@ struct wslay_event_callbacks {
  * WSLAY_ERR_NOMEM
  *   Out of memory.
  */
-int wslay_event_context_server_init
-(wslay_event_context_ptr *ctx,
- const struct wslay_event_callbacks *callbacks, void *user_data);
+int wslay_event_context_server_init(
+    wslay_event_context_ptr *ctx, const struct wslay_event_callbacks *callbacks,
+    void *user_data);
 
 /*
  * Initializes ctx as WebSocket client. user_data is an arbitrary
@@ -409,9 +436,9 @@ int wslay_event_context_server_init
  * WSLAY_ERR_NOMEM
  *   Out of memory.
  */
-int wslay_event_context_client_init
-(wslay_event_context_ptr *ctx,
- const struct wslay_event_callbacks *callbacks, void *user_data);
+int wslay_event_context_client_init(
+    wslay_event_context_ptr *ctx, const struct wslay_event_callbacks *callbacks,
+    void *user_data);
 
 /*
  * Releases allocated resources for ctx.
@@ -462,8 +489,8 @@ void wslay_event_config_set_max_recv_msg_length(wslay_event_context_ptr ctx,
  * or wslay_event_context_server_init() or
  * wslay_event_context_client_init() are replaced with callbacks.
  */
-void wslay_event_config_set_callbacks
-(wslay_event_context_ptr ctx, const struct wslay_event_callbacks *callbacks);
+void wslay_event_config_set_callbacks(
+    wslay_event_context_ptr ctx, const struct wslay_event_callbacks *callbacks);
 
 /*
  * Receives messages from peer. When receiving
@@ -538,6 +565,50 @@ int wslay_event_recv(wslay_event_context_ptr ctx);
  */
 int wslay_event_send(wslay_event_context_ptr ctx);
 
+/*
+ * Writes queued messages to a buffer. Unlike wslay_event_send(), this
+ * function writes messages into the given buffer.  It does not use
+ * wslay_event_send_callback function. Single call of
+ * wslay_event_write() writes multiple messages until there is not
+ * enough space left in a buffer.
+ *
+ * If ctx is initialized for WebSocket client use, wslay_event_write()
+ * uses wslay_event_genmask_callback to get new mask key.
+ *
+ * buf is a pointer to buffer and its capacity is given in buflen.  It
+ * should have at least 14 bytes.
+ *
+ * When a message queued using wslay_event_queue_fragmented_msg() is
+ * sent, wslay_event_write() invokes
+ * wslay_event_fragmented_msg_callback for that message.
+ *
+ * After close control frame is sent, this function calls
+ * wslay_event_set_write_enabled() with second argument 0 to disable
+ * further transmission to peer.
+ *
+ * If there are any pending messages, wslay_event_want_write() returns
+ * 1, otherwise returns 0.
+ *
+ * In case of a fatal errror which leads to negative return code, this
+ * function calls wslay_event_set_write_enabled() with second argument
+ * 0 to disable further transmission to peer.
+ *
+ * wslay_event_write() returns the number of bytes written to a buffer
+ * if it succeeds, or one of the following negative error codes:
+ *
+ * WSLAY_ERR_CALLBACK_FAILURE
+ *   User defined callback function is failed.
+ *
+ * WSLAY_ERR_NOMEM
+ *   Out of memory.
+ *
+ * When negative error code is returned, application must not make any
+ * further call of wslay_event_write() and must close WebSocket
+ * connection.
+ */
+ssize_t wslay_event_write(wslay_event_context_ptr ctx, uint8_t *buf,
+                          size_t buflen);
+
 struct wslay_event_msg {
   uint8_t opcode;
   const uint8_t *msg;
@@ -594,10 +665,9 @@ union wslay_event_msg_source {
  * moment, return 0. If there is an error, return -1 and set error
  * code WSLAY_ERR_CALLBACK_FAILURE using wslay_event_set_error().
  */
-typedef ssize_t (*wslay_event_fragmented_msg_callback)
-(wslay_event_context_ptr ctx,
- uint8_t *buf, size_t len, const union wslay_event_msg_source *source,
- int *eof, void *user_data);
+typedef ssize_t (*wslay_event_fragmented_msg_callback)(
+    wslay_event_context_ptr ctx, uint8_t *buf, size_t len,
+    const union wslay_event_msg_source *source, int *eof, void *user_data);
 
 struct wslay_event_fragmented_msg {
   /* opcode */
@@ -631,15 +701,16 @@ struct wslay_event_fragmented_msg {
  * WSLAY_ERR_NOMEM
  *   Out of memory.
  */
-int wslay_event_queue_fragmented_msg
-(wslay_event_context_ptr ctx, const struct wslay_event_fragmented_msg *arg);
+int wslay_event_queue_fragmented_msg(
+    wslay_event_context_ptr ctx, const struct wslay_event_fragmented_msg *arg);
 
 /*
  * Extended version of wslay_event_queue_fragmented_msg which allows to set
  * reserved bits.
  */
-int wslay_event_queue_fragmented_msg_ex(wslay_event_context_ptr ctx,
-    const struct wslay_event_fragmented_msg *arg, uint8_t rsv);
+int wslay_event_queue_fragmented_msg_ex(
+    wslay_event_context_ptr ctx, const struct wslay_event_fragmented_msg *arg,
+    uint8_t rsv);
 
 /*
  * Queues close control frame. This function is provided just for
@@ -669,8 +740,7 @@ int wslay_event_queue_fragmented_msg_ex(wslay_event_context_ptr ctx,
  * WSLAY_ERR_NOMEM
  *   Out of memory.
  */
-int wslay_event_queue_close(wslay_event_context_ptr ctx,
-                            uint16_t status_code,
+int wslay_event_queue_close(wslay_event_context_ptr ctx, uint16_t status_code,
                             const uint8_t *reason, size_t reason_length);
 
 /*
diff --git a/thirdparty/wslay/includes/wslay/wslayver.h b/thirdparty/wslay/wslay/wslayver.h
index 28f2018039..28f2018039 100644
--- a/thirdparty/wslay/includes/wslay/wslayver.h
+++ b/thirdparty/wslay/wslay/wslayver.h
diff --git a/thirdparty/wslay/wslay_event.c b/thirdparty/wslay/wslay_event.c
index 140f7c01da..4c29fe4000 100644
--- a/thirdparty/wslay/wslay_event.c
+++ b/thirdparty/wslay/wslay_event.c
@@ -28,9 +28,9 @@
 #include <assert.h>
 #include <stdio.h>
 
-#include "wslay_queue.h"
 #include "wslay_frame.h"
 #include "wslay_net.h"
+#include "wslay_macro.h"
 /* Start of utf8 dfa */
 /* Copyright (c) 2008-2010 Bjoern Hoehrmann <bjoern@hoehrmann.de>
  * See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details.
@@ -60,6 +60,7 @@
 #define UTF8_ACCEPT 0
 #define UTF8_REJECT 12
 
+/* clang-format off */
 static const uint8_t utf8d[] = {
   /*
    * The first part of the table maps bytes to character classes that
@@ -84,14 +85,13 @@ static const uint8_t utf8d[] = {
   12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
   12,36,12,12,12,12,12,12,12,12,12,12,
 };
+/* clang-format on */
 
-static uint32_t
-decode(uint32_t* state, uint32_t* codep, uint32_t byte) {
+static uint32_t decode(uint32_t *state, uint32_t *codep, uint32_t byte) {
   uint32_t type = utf8d[byte];
 
-  *codep = (*state != UTF8_ACCEPT) ?
-    (byte & 0x3fu) | (*codep << 6) :
-    (0xff >> type) & (byte);
+  *codep = (*state != UTF8_ACCEPT) ? (byte & 0x3fu) | (*codep << 6)
+                                   : (0xff >> type) & (byte);
 
   *state = utf8d[256 + *state + type];
   return *state;
@@ -100,117 +100,96 @@ decode(uint32_t* state, uint32_t* codep, uint32_t byte) {
 /* End of utf8 dfa */
 
 static ssize_t wslay_event_frame_recv_callback(uint8_t *buf, size_t len,
-                                               int flags, void *user_data)
-{
+                                               int flags, void *user_data) {
   struct wslay_event_frame_user_data *e =
-    (struct wslay_event_frame_user_data*)user_data;
+      (struct wslay_event_frame_user_data *)user_data;
   return e->ctx->callbacks.recv_callback(e->ctx, buf, len, flags, e->user_data);
 }
 
 static ssize_t wslay_event_frame_send_callback(const uint8_t *data, size_t len,
-                                               int flags, void *user_data)
-{
+                                               int flags, void *user_data) {
   struct wslay_event_frame_user_data *e =
-    (struct wslay_event_frame_user_data*)user_data;
+      (struct wslay_event_frame_user_data *)user_data;
   return e->ctx->callbacks.send_callback(e->ctx, data, len, flags,
                                          e->user_data);
 }
 
 static int wslay_event_frame_genmask_callback(uint8_t *buf, size_t len,
-                                              void *user_data)
-{
+                                              void *user_data) {
   struct wslay_event_frame_user_data *e =
-    (struct wslay_event_frame_user_data*)user_data;
+      (struct wslay_event_frame_user_data *)user_data;
   return e->ctx->callbacks.genmask_callback(e->ctx, buf, len, e->user_data);
 }
 
-static int wslay_event_byte_chunk_init
-(struct wslay_event_byte_chunk **chunk, size_t len)
-{
-  *chunk = (struct wslay_event_byte_chunk*)malloc
-    (sizeof(struct wslay_event_byte_chunk));
-  if(*chunk == NULL) {
+static int wslay_event_byte_chunk_init(struct wslay_event_byte_chunk **chunk,
+                                       size_t len) {
+  *chunk = malloc(sizeof(struct wslay_event_byte_chunk) + len);
+  if (*chunk == NULL) {
     return WSLAY_ERR_NOMEM;
   }
   memset(*chunk, 0, sizeof(struct wslay_event_byte_chunk));
-  if(len) {
-    (*chunk)->data = (uint8_t*)malloc(len);
-    if((*chunk)->data == NULL) {
-      free(*chunk);
-      return WSLAY_ERR_NOMEM;
-    }
+  if (len) {
+    (*chunk)->data = (uint8_t *)(*chunk) + sizeof(**chunk);
     (*chunk)->data_length = len;
   }
   return 0;
 }
 
-static void wslay_event_byte_chunk_free(struct wslay_event_byte_chunk *c)
-{
-  if(!c) {
-    return;
-  }
-  free(c->data);
+static void wslay_event_byte_chunk_free(struct wslay_event_byte_chunk *c) {
   free(c);
 }
 
 static void wslay_event_byte_chunk_copy(struct wslay_event_byte_chunk *c,
-                                        size_t off,
-                                        const uint8_t *data, size_t data_length)
-{
-  memcpy(c->data+off, data, data_length);
+                                        size_t off, const uint8_t *data,
+                                        size_t data_length) {
+  memcpy(c->data + off, data, data_length);
 }
 
-static void wslay_event_imsg_set(struct wslay_event_imsg *m,
-                                 uint8_t fin, uint8_t rsv, uint8_t opcode)
-{
+static void wslay_event_imsg_set(struct wslay_event_imsg *m, uint8_t fin,
+                                 uint8_t rsv, uint8_t opcode) {
   m->fin = fin;
   m->rsv = rsv;
   m->opcode = opcode;
   m->msg_length = 0;
 }
 
-static void wslay_event_imsg_chunks_free(struct wslay_event_imsg *m)
-{
-  if(!m->chunks) {
-    return;
-  }
-  while(!wslay_queue_empty(m->chunks)) {
-    wslay_event_byte_chunk_free(wslay_queue_top(m->chunks));
-    wslay_queue_pop(m->chunks);
+static void wslay_event_imsg_chunks_free(struct wslay_event_imsg *m) {
+  while (!wslay_queue_empty(&m->chunks)) {
+    struct wslay_event_byte_chunk *chunk = wslay_struct_of(
+        wslay_queue_top(&m->chunks), struct wslay_event_byte_chunk, qe);
+    wslay_queue_pop(&m->chunks);
+    wslay_event_byte_chunk_free(chunk);
   }
 }
 
-static void wslay_event_imsg_reset(struct wslay_event_imsg *m)
-{
+static void wslay_event_imsg_reset(struct wslay_event_imsg *m) {
   m->opcode = 0xffu;
   m->utf8state = UTF8_ACCEPT;
   wslay_event_imsg_chunks_free(m);
 }
 
-static int wslay_event_imsg_append_chunk(struct wslay_event_imsg *m, size_t len)
-{
-  if(len == 0) {
+static int wslay_event_imsg_append_chunk(struct wslay_event_imsg *m,
+                                         size_t len) {
+  if (len == 0) {
     return 0;
   } else {
     int r;
     struct wslay_event_byte_chunk *chunk;
-    if((r = wslay_event_byte_chunk_init(&chunk, len)) != 0) {
-      return r;
-    }
-    if((r = wslay_queue_push(m->chunks, chunk)) != 0) {
+    if ((r = wslay_event_byte_chunk_init(&chunk, len)) != 0) {
       return r;
     }
+    wslay_queue_push(&m->chunks, &chunk->qe);
     m->msg_length += len;
     return 0;
   }
 }
 
-static int wslay_event_omsg_non_fragmented_init
-(struct wslay_event_omsg **m, uint8_t opcode, uint8_t rsv,
- const uint8_t *msg, size_t msg_length)
-{
-  *m = (struct wslay_event_omsg*)malloc(sizeof(struct wslay_event_omsg));
-  if(!*m) {
+static int wslay_event_omsg_non_fragmented_init(struct wslay_event_omsg **m,
+                                                uint8_t opcode, uint8_t rsv,
+                                                const uint8_t *msg,
+                                                size_t msg_length) {
+  *m = malloc(sizeof(struct wslay_event_omsg) + msg_length);
+  if (!*m) {
     return WSLAY_ERR_NOMEM;
   }
   memset(*m, 0, sizeof(struct wslay_event_omsg));
@@ -218,28 +197,22 @@ static int wslay_event_omsg_non_fragmented_init
   (*m)->opcode = opcode;
   (*m)->rsv = rsv;
   (*m)->type = WSLAY_NON_FRAGMENTED;
-  if(msg_length) {
-    (*m)->data = (uint8_t*)malloc(msg_length);
-    if(!(*m)->data) {
-      free(*m);
-      return WSLAY_ERR_NOMEM;
-    }
+  if (msg_length) {
+    (*m)->data = (uint8_t *)(*m) + sizeof(**m);
     memcpy((*m)->data, msg, msg_length);
     (*m)->data_length = msg_length;
   }
   return 0;
 }
 
-static int wslay_event_omsg_fragmented_init
-(struct wslay_event_omsg **m, uint8_t opcode, uint8_t rsv,
- const union wslay_event_msg_source source,
- wslay_event_fragmented_msg_callback read_callback)
-{
-  *m = (struct wslay_event_omsg*)malloc(sizeof(struct wslay_event_omsg));
-  if(!*m) {
+static int wslay_event_omsg_fragmented_init(
+    struct wslay_event_omsg **m, uint8_t opcode, uint8_t rsv,
+    const union wslay_event_msg_source source,
+    wslay_event_fragmented_msg_callback read_callback) {
+  *m = calloc(1, sizeof(struct wslay_event_omsg));
+  if (!*m) {
     return WSLAY_ERR_NOMEM;
   }
-  memset(*m, 0, sizeof(struct wslay_event_omsg));
   (*m)->opcode = opcode;
   (*m)->rsv = rsv;
   (*m)->type = WSLAY_FRAGMENTED;
@@ -248,31 +221,25 @@ static int wslay_event_omsg_fragmented_init
   return 0;
 }
 
-static void wslay_event_omsg_free(struct wslay_event_omsg *m)
-{
-  if(!m) {
-    return;
-  }
-  free(m->data);
-  free(m);
-}
+static void wslay_event_omsg_free(struct wslay_event_omsg *m) { free(m); }
 
-static uint8_t* wslay_event_flatten_queue(struct wslay_queue *queue, size_t len)
-{
-  if(len == 0) {
+static uint8_t *wslay_event_flatten_queue(struct wslay_queue *queue,
+                                          size_t len) {
+  if (len == 0) {
     return NULL;
   } else {
     size_t off = 0;
-    uint8_t *buf = (uint8_t*)malloc(len);
-    if(!buf) {
+    uint8_t *buf = malloc(len);
+    if (!buf) {
       return NULL;
     }
-    while(!wslay_queue_empty(queue)) {
-      struct wslay_event_byte_chunk *chunk = wslay_queue_top(queue);
-      memcpy(buf+off, chunk->data, chunk->data_length);
+    while (!wslay_queue_empty(queue)) {
+      struct wslay_event_byte_chunk *chunk = wslay_struct_of(
+          wslay_queue_top(queue), struct wslay_event_byte_chunk, qe);
+      wslay_queue_pop(queue);
+      memcpy(buf + off, chunk->data, chunk->data_length);
       off += chunk->data_length;
       wslay_event_byte_chunk_free(chunk);
-      wslay_queue_pop(queue);
       assert(off <= len);
     }
     assert(len == off);
@@ -280,17 +247,15 @@ static uint8_t* wslay_event_flatten_queue(struct wslay_queue *queue, size_t len)
   }
 }
 
-static int wslay_event_is_msg_queueable(wslay_event_context_ptr ctx)
-{
+static int wslay_event_is_msg_queueable(wslay_event_context_ptr ctx) {
   return ctx->write_enabled && (ctx->close_status & WSLAY_CLOSE_QUEUED) == 0;
 }
 
 int wslay_event_queue_close(wslay_event_context_ptr ctx, uint16_t status_code,
-                            const uint8_t *reason, size_t reason_length)
-{
-  if(!wslay_event_is_msg_queueable(ctx)) {
+                            const uint8_t *reason, size_t reason_length) {
+  if (!wslay_event_is_msg_queueable(ctx)) {
     return WSLAY_ERR_NO_MORE_MSG;
-  } else if(reason_length > 123) {
+  } else if (reason_length > 123) {
     return WSLAY_ERR_INVALID_ARGUMENT;
   } else {
     uint8_t msg[128];
@@ -298,231 +263,203 @@ int wslay_event_queue_close(wslay_event_context_ptr ctx, uint16_t status_code,
     struct wslay_event_msg arg;
     uint16_t ncode;
     int r;
-    if(status_code == 0) {
+    if (status_code == 0) {
       msg_length = 0;
     } else {
       ncode = htons(status_code);
       memcpy(msg, &ncode, 2);
-      if(reason_length) {
-        memcpy(msg+2, reason, reason_length);
+      if (reason_length) {
+        memcpy(msg + 2, reason, reason_length);
       }
-      msg_length = reason_length+2;
+      msg_length = reason_length + 2;
     }
     arg.opcode = WSLAY_CONNECTION_CLOSE;
     arg.msg = msg;
     arg.msg_length = msg_length;
     r = wslay_event_queue_msg(ctx, &arg);
-    if(r == 0) {
+    if (r == 0) {
       ctx->close_status |= WSLAY_CLOSE_QUEUED;
     }
     return r;
   }
 }
 
-static int wslay_event_queue_close_wrapper
-(wslay_event_context_ptr ctx, uint16_t status_code,
- const uint8_t *reason, size_t reason_length)
-{
+static int wslay_event_queue_close_wrapper(wslay_event_context_ptr ctx,
+                                           uint16_t status_code,
+                                           const uint8_t *reason,
+                                           size_t reason_length) {
   int r;
   ctx->read_enabled = 0;
-  if((r = wslay_event_queue_close(ctx, status_code, reason, reason_length)) &&
-     r != WSLAY_ERR_NO_MORE_MSG) {
+  if ((r = wslay_event_queue_close(ctx, status_code, reason, reason_length)) &&
+      r != WSLAY_ERR_NO_MORE_MSG) {
     return r;
   }
   return 0;
 }
 
-static int wslay_event_verify_rsv_bits(wslay_event_context_ptr ctx, uint8_t rsv)
-{
+static int wslay_event_verify_rsv_bits(wslay_event_context_ptr ctx,
+                                       uint8_t rsv) {
   return ((rsv & ~ctx->allowed_rsv_bits) == 0);
 }
 
 int wslay_event_queue_msg(wslay_event_context_ptr ctx,
-                          const struct wslay_event_msg *arg)
-{
+                          const struct wslay_event_msg *arg) {
   return wslay_event_queue_msg_ex(ctx, arg, WSLAY_RSV_NONE);
 }
 
 int wslay_event_queue_msg_ex(wslay_event_context_ptr ctx,
-                              const struct wslay_event_msg *arg, uint8_t rsv)
-{
+                             const struct wslay_event_msg *arg, uint8_t rsv) {
   int r;
   struct wslay_event_omsg *omsg;
-  if(!wslay_event_is_msg_queueable(ctx)) {
+  if (!wslay_event_is_msg_queueable(ctx)) {
     return WSLAY_ERR_NO_MORE_MSG;
   }
   /* RSV1 is not allowed for control frames */
-  if((wslay_is_ctrl_frame(arg->opcode) &&
-      (arg->msg_length > 125 || wslay_get_rsv1(rsv)))
-        || !wslay_event_verify_rsv_bits(ctx, rsv)) {
+  if ((wslay_is_ctrl_frame(arg->opcode) &&
+       (arg->msg_length > 125 || wslay_get_rsv1(rsv))) ||
+      !wslay_event_verify_rsv_bits(ctx, rsv)) {
     return WSLAY_ERR_INVALID_ARGUMENT;
   }
-  if((r = wslay_event_omsg_non_fragmented_init
-      (&omsg, arg->opcode, rsv, arg->msg, arg->msg_length)) != 0) {
+  if ((r = wslay_event_omsg_non_fragmented_init(
+           &omsg, arg->opcode, rsv, arg->msg, arg->msg_length)) != 0) {
     return r;
   }
-  if(wslay_is_ctrl_frame(arg->opcode)) {
-    if((r = wslay_queue_push(ctx->send_ctrl_queue, omsg)) != 0) {
-      return r;
-    }
+  if (wslay_is_ctrl_frame(arg->opcode)) {
+    wslay_queue_push(&ctx->send_ctrl_queue, &omsg->qe);
   } else {
-    if((r = wslay_queue_push(ctx->send_queue, omsg)) != 0) {
-      return r;
-    }
+    wslay_queue_push(&ctx->send_queue, &omsg->qe);
   }
   ++ctx->queued_msg_count;
   ctx->queued_msg_length += arg->msg_length;
   return 0;
 }
 
-int wslay_event_queue_fragmented_msg
-(wslay_event_context_ptr ctx, const struct wslay_event_fragmented_msg *arg)
-{
+int wslay_event_queue_fragmented_msg(
+    wslay_event_context_ptr ctx, const struct wslay_event_fragmented_msg *arg) {
   return wslay_event_queue_fragmented_msg_ex(ctx, arg, WSLAY_RSV_NONE);
 }
 
-int wslay_event_queue_fragmented_msg_ex(wslay_event_context_ptr ctx,
-    const struct wslay_event_fragmented_msg *arg, uint8_t rsv)
-{
+int wslay_event_queue_fragmented_msg_ex(
+    wslay_event_context_ptr ctx, const struct wslay_event_fragmented_msg *arg,
+    uint8_t rsv) {
   int r;
   struct wslay_event_omsg *omsg;
-  if(!wslay_event_is_msg_queueable(ctx)) {
+  if (!wslay_event_is_msg_queueable(ctx)) {
     return WSLAY_ERR_NO_MORE_MSG;
   }
-  if(wslay_is_ctrl_frame(arg->opcode) ||
-     !wslay_event_verify_rsv_bits(ctx, rsv)) {
+  if (wslay_is_ctrl_frame(arg->opcode) ||
+      !wslay_event_verify_rsv_bits(ctx, rsv)) {
     return WSLAY_ERR_INVALID_ARGUMENT;
   }
-  if((r = wslay_event_omsg_fragmented_init
-      (&omsg, arg->opcode, rsv, arg->source, arg->read_callback)) != 0) {
-    return r;
-  }
-  if((r = wslay_queue_push(ctx->send_queue, omsg)) != 0) {
+  if ((r = wslay_event_omsg_fragmented_init(
+           &omsg, arg->opcode, rsv, arg->source, arg->read_callback)) != 0) {
     return r;
   }
+  wslay_queue_push(&ctx->send_queue, &omsg->qe);
   ++ctx->queued_msg_count;
   return 0;
 }
 
-void wslay_event_config_set_callbacks
-(wslay_event_context_ptr ctx, const struct wslay_event_callbacks *callbacks)
-{
+void wslay_event_config_set_callbacks(
+    wslay_event_context_ptr ctx,
+    const struct wslay_event_callbacks *callbacks) {
   ctx->callbacks = *callbacks;
 }
 
-static int wslay_event_context_init
-(wslay_event_context_ptr *ctx,
- const struct wslay_event_callbacks *callbacks,
- void *user_data)
-{
+static int
+wslay_event_context_init(wslay_event_context_ptr *ctx,
+                         const struct wslay_event_callbacks *callbacks,
+                         void *user_data) {
   int i, r;
   struct wslay_frame_callbacks frame_callbacks = {
-    wslay_event_frame_send_callback,
-    wslay_event_frame_recv_callback,
-    wslay_event_frame_genmask_callback
-  };
-  *ctx = (wslay_event_context_ptr)malloc(sizeof(struct wslay_event_context));
-  if(!*ctx) {
+      wslay_event_frame_send_callback, wslay_event_frame_recv_callback,
+      wslay_event_frame_genmask_callback};
+  *ctx = calloc(1, sizeof(struct wslay_event_context));
+  if (!*ctx) {
     return WSLAY_ERR_NOMEM;
   }
-  memset(*ctx, 0, sizeof(struct wslay_event_context));
   wslay_event_config_set_callbacks(*ctx, callbacks);
   (*ctx)->user_data = user_data;
   (*ctx)->frame_user_data.ctx = *ctx;
   (*ctx)->frame_user_data.user_data = user_data;
-  if((r = wslay_frame_context_init(&(*ctx)->frame_ctx, &frame_callbacks,
-                                   &(*ctx)->frame_user_data)) != 0) {
+  if ((r = wslay_frame_context_init(&(*ctx)->frame_ctx, &frame_callbacks,
+                                    &(*ctx)->frame_user_data)) != 0) {
     wslay_event_context_free(*ctx);
     return r;
   }
   (*ctx)->read_enabled = (*ctx)->write_enabled = 1;
-  (*ctx)->send_queue = wslay_queue_new();
-  if(!(*ctx)->send_queue) {
-    wslay_event_context_free(*ctx);
-    return WSLAY_ERR_NOMEM;
-  }
-  (*ctx)->send_ctrl_queue = wslay_queue_new();
-  if(!(*ctx)->send_ctrl_queue) {
-    wslay_event_context_free(*ctx);
-    return WSLAY_ERR_NOMEM;
-  }
+  wslay_queue_init(&(*ctx)->send_queue);
+  wslay_queue_init(&(*ctx)->send_ctrl_queue);
   (*ctx)->queued_msg_count = 0;
   (*ctx)->queued_msg_length = 0;
-  for(i = 0; i < 2; ++i) {
+  for (i = 0; i < 2; ++i) {
+    wslay_queue_init(&(*ctx)->imsgs[i].chunks);
     wslay_event_imsg_reset(&(*ctx)->imsgs[i]);
-    (*ctx)->imsgs[i].chunks = wslay_queue_new();
-    if(!(*ctx)->imsgs[i].chunks) {
-      wslay_event_context_free(*ctx);
-      return WSLAY_ERR_NOMEM;
-    }
   }
   (*ctx)->imsg = &(*ctx)->imsgs[0];
   (*ctx)->obufmark = (*ctx)->obuflimit = (*ctx)->obuf;
   (*ctx)->status_code_sent = WSLAY_CODE_ABNORMAL_CLOSURE;
   (*ctx)->status_code_recv = WSLAY_CODE_ABNORMAL_CLOSURE;
-  (*ctx)->max_recv_msg_length = (1u << 31)-1;
+  (*ctx)->max_recv_msg_length = (1u << 31) - 1;
   return 0;
 }
 
-int wslay_event_context_server_init
-(wslay_event_context_ptr *ctx,
- const struct wslay_event_callbacks *callbacks,
- void *user_data)
-{
+int wslay_event_context_server_init(
+    wslay_event_context_ptr *ctx, const struct wslay_event_callbacks *callbacks,
+    void *user_data) {
   int r;
-  if((r = wslay_event_context_init(ctx, callbacks, user_data)) != 0) {
+  if ((r = wslay_event_context_init(ctx, callbacks, user_data)) != 0) {
     return r;
   }
   (*ctx)->server = 1;
   return 0;
 }
 
-int wslay_event_context_client_init
-(wslay_event_context_ptr *ctx,
- const struct wslay_event_callbacks *callbacks,
- void *user_data)
-{
+int wslay_event_context_client_init(
+    wslay_event_context_ptr *ctx, const struct wslay_event_callbacks *callbacks,
+    void *user_data) {
   int r;
-  if((r = wslay_event_context_init(ctx, callbacks, user_data)) != 0) {
+  if ((r = wslay_event_context_init(ctx, callbacks, user_data)) != 0) {
     return r;
   }
   (*ctx)->server = 0;
   return 0;
 }
 
-void wslay_event_context_free(wslay_event_context_ptr ctx)
-{
+void wslay_event_context_free(wslay_event_context_ptr ctx) {
   int i;
-  if(!ctx) {
+  if (!ctx) {
     return;
   }
-  for(i = 0; i < 2; ++i) {
+  for (i = 0; i < 2; ++i) {
     wslay_event_imsg_chunks_free(&ctx->imsgs[i]);
-    wslay_queue_free(ctx->imsgs[i].chunks);
+    wslay_queue_deinit(&ctx->imsgs[i].chunks);
   }
-  if(ctx->send_queue) {
-    while(!wslay_queue_empty(ctx->send_queue)) {
-      wslay_event_omsg_free(wslay_queue_top(ctx->send_queue));
-      wslay_queue_pop(ctx->send_queue);
-    }
-    wslay_queue_free(ctx->send_queue);
+
+  while (!wslay_queue_empty(&ctx->send_queue)) {
+    struct wslay_event_omsg *omsg = wslay_struct_of(
+        wslay_queue_top(&ctx->send_queue), struct wslay_event_omsg, qe);
+    wslay_queue_pop(&ctx->send_queue);
+    wslay_event_omsg_free(omsg);
   }
-  if(ctx->send_ctrl_queue) {
-    while(!wslay_queue_empty(ctx->send_ctrl_queue)) {
-      wslay_event_omsg_free(wslay_queue_top(ctx->send_ctrl_queue));
-      wslay_queue_pop(ctx->send_ctrl_queue);
-    }
-    wslay_queue_free(ctx->send_ctrl_queue);
+  wslay_queue_deinit(&ctx->send_queue);
+
+  while (!wslay_queue_empty(&ctx->send_ctrl_queue)) {
+    struct wslay_event_omsg *omsg = wslay_struct_of(
+        wslay_queue_top(&ctx->send_ctrl_queue), struct wslay_event_omsg, qe);
+    wslay_queue_pop(&ctx->send_ctrl_queue);
+    wslay_event_omsg_free(omsg);
   }
+  wslay_queue_deinit(&ctx->send_ctrl_queue);
+
   wslay_frame_context_free(ctx->frame_ctx);
   wslay_event_omsg_free(ctx->omsg);
   free(ctx);
 }
 
-static void wslay_event_call_on_frame_recv_start_callback
-(wslay_event_context_ptr ctx, const struct wslay_frame_iocb *iocb)
-{
-  if(ctx->callbacks.on_frame_recv_start_callback) {
+static void wslay_event_call_on_frame_recv_start_callback(
+    wslay_event_context_ptr ctx, const struct wslay_frame_iocb *iocb) {
+  if (ctx->callbacks.on_frame_recv_start_callback) {
     struct wslay_event_on_frame_recv_start_arg arg;
     arg.fin = iocb->fin;
     arg.rsv = iocb->rsv;
@@ -532,10 +469,9 @@ static void wslay_event_call_on_frame_recv_start_callback
   }
 }
 
-static void wslay_event_call_on_frame_recv_chunk_callback
-(wslay_event_context_ptr ctx, const struct wslay_frame_iocb *iocb)
-{
-  if(ctx->callbacks.on_frame_recv_chunk_callback) {
+static void wslay_event_call_on_frame_recv_chunk_callback(
+    wslay_event_context_ptr ctx, const struct wslay_frame_iocb *iocb) {
+  if (ctx->callbacks.on_frame_recv_chunk_callback) {
     struct wslay_event_on_frame_recv_chunk_arg arg;
     arg.data = iocb->data;
     arg.data_length = iocb->data_length;
@@ -543,205 +479,202 @@ static void wslay_event_call_on_frame_recv_chunk_callback
   }
 }
 
-static void wslay_event_call_on_frame_recv_end_callback
-(wslay_event_context_ptr ctx)
-{
-  if(ctx->callbacks.on_frame_recv_end_callback) {
+static void
+wslay_event_call_on_frame_recv_end_callback(wslay_event_context_ptr ctx) {
+  if (ctx->callbacks.on_frame_recv_end_callback) {
     ctx->callbacks.on_frame_recv_end_callback(ctx, ctx->user_data);
   }
 }
 
-static int wslay_event_is_valid_status_code(uint16_t status_code)
-{
-  return (1000 <= status_code && status_code <= 1011 &&
-          status_code != 1004 && status_code != 1005 && status_code != 1006) ||
-    (3000 <= status_code && status_code <= 4999);
+static int wslay_event_is_valid_status_code(uint16_t status_code) {
+  return (1000 <= status_code && status_code <= 1011 && status_code != 1004 &&
+          status_code != 1005 && status_code != 1006) ||
+         (3000 <= status_code && status_code <= 4999);
 }
 
-static int wslay_event_config_get_no_buffering(wslay_event_context_ptr ctx)
-{
+static int wslay_event_config_get_no_buffering(wslay_event_context_ptr ctx) {
   return (ctx->config & WSLAY_CONFIG_NO_BUFFERING) > 0;
 }
 
-int wslay_event_recv(wslay_event_context_ptr ctx)
-{
+int wslay_event_recv(wslay_event_context_ptr ctx) {
   struct wslay_frame_iocb iocb;
   ssize_t r;
-  while(ctx->read_enabled) {
+  while (ctx->read_enabled) {
     memset(&iocb, 0, sizeof(iocb));
     r = wslay_frame_recv(ctx->frame_ctx, &iocb);
-    if(r >= 0) {
+    if (r >= 0) {
       int new_frame = 0;
       /* RSV1 is not allowed on control and continuation frames */
-      if((!wslay_event_verify_rsv_bits(ctx, iocb.rsv)) ||
-          (wslay_get_rsv1(iocb.rsv) && (wslay_is_ctrl_frame(iocb.opcode) ||
-             iocb.opcode == WSLAY_CONTINUATION_FRAME)) ||
-               (ctx->server && !iocb.mask) || (!ctx->server && iocb.mask)) {
-        if((r = wslay_event_queue_close_wrapper
-            (ctx, WSLAY_CODE_PROTOCOL_ERROR, NULL, 0)) != 0) {
-          return r;
+      if ((!wslay_event_verify_rsv_bits(ctx, iocb.rsv)) ||
+          (wslay_get_rsv1(iocb.rsv) &&
+           (wslay_is_ctrl_frame(iocb.opcode) ||
+            iocb.opcode == WSLAY_CONTINUATION_FRAME)) ||
+          (ctx->server && !iocb.mask) || (!ctx->server && iocb.mask)) {
+        if ((r = wslay_event_queue_close_wrapper(ctx, WSLAY_CODE_PROTOCOL_ERROR,
+                                                 NULL, 0)) != 0) {
+          return (int)r;
         }
         break;
       }
-      if(ctx->imsg->opcode == 0xffu) {
-        if(iocb.opcode == WSLAY_TEXT_FRAME ||
-           iocb.opcode == WSLAY_BINARY_FRAME ||
-           iocb.opcode == WSLAY_CONNECTION_CLOSE ||
-           iocb.opcode == WSLAY_PING ||
-           iocb.opcode == WSLAY_PONG) {
+      if (ctx->imsg->opcode == 0xffu) {
+        if (iocb.opcode == WSLAY_TEXT_FRAME ||
+            iocb.opcode == WSLAY_BINARY_FRAME ||
+            iocb.opcode == WSLAY_CONNECTION_CLOSE ||
+            iocb.opcode == WSLAY_PING || iocb.opcode == WSLAY_PONG) {
           wslay_event_imsg_set(ctx->imsg, iocb.fin, iocb.rsv, iocb.opcode);
           new_frame = 1;
         } else {
-          if((r = wslay_event_queue_close_wrapper
-              (ctx, WSLAY_CODE_PROTOCOL_ERROR, NULL, 0)) != 0) {
-            return r;
+          if ((r = wslay_event_queue_close_wrapper(
+                   ctx, WSLAY_CODE_PROTOCOL_ERROR, NULL, 0)) != 0) {
+            return (int)r;
           }
           break;
         }
-      } else if(ctx->ipayloadlen == 0 && ctx->ipayloadoff == 0) {
-        if(iocb.opcode == WSLAY_CONTINUATION_FRAME) {
+      } else if (ctx->ipayloadlen == 0 && ctx->ipayloadoff == 0) {
+        if (iocb.opcode == WSLAY_CONTINUATION_FRAME) {
           ctx->imsg->fin = iocb.fin;
-        } else if(iocb.opcode == WSLAY_CONNECTION_CLOSE ||
-                  iocb.opcode == WSLAY_PING ||
-                  iocb.opcode == WSLAY_PONG) {
+        } else if (iocb.opcode == WSLAY_CONNECTION_CLOSE ||
+                   iocb.opcode == WSLAY_PING || iocb.opcode == WSLAY_PONG) {
           ctx->imsg = &ctx->imsgs[1];
           wslay_event_imsg_set(ctx->imsg, iocb.fin, iocb.rsv, iocb.opcode);
         } else {
-          if((r = wslay_event_queue_close_wrapper
-              (ctx, WSLAY_CODE_PROTOCOL_ERROR, NULL, 0)) != 0) {
-            return r;
+          if ((r = wslay_event_queue_close_wrapper(
+                   ctx, WSLAY_CODE_PROTOCOL_ERROR, NULL, 0)) != 0) {
+            return (int)r;
           }
           break;
         }
         new_frame = 1;
       }
-      if(new_frame) {
-        if(ctx->imsg->msg_length+iocb.payload_length >
-           ctx->max_recv_msg_length) {
-          if((r = wslay_event_queue_close_wrapper
-              (ctx, WSLAY_CODE_MESSAGE_TOO_BIG, NULL, 0)) != 0) {
-            return r;
+      if (new_frame) {
+        if (ctx->imsg->msg_length + iocb.payload_length >
+            ctx->max_recv_msg_length) {
+          if ((r = wslay_event_queue_close_wrapper(
+                   ctx, WSLAY_CODE_MESSAGE_TOO_BIG, NULL, 0)) != 0) {
+            return (int)r;
           }
           break;
         }
         ctx->ipayloadlen = iocb.payload_length;
         wslay_event_call_on_frame_recv_start_callback(ctx, &iocb);
-        if(!wslay_event_config_get_no_buffering(ctx) ||
-           wslay_is_ctrl_frame(iocb.opcode)) {
-          if((r = wslay_event_imsg_append_chunk(ctx->imsg,
-                                                iocb.payload_length)) != 0) {
+        if (!wslay_event_config_get_no_buffering(ctx) ||
+            wslay_is_ctrl_frame(iocb.opcode)) {
+          if ((r = wslay_event_imsg_append_chunk(ctx->imsg,
+                                                 iocb.payload_length)) != 0) {
             ctx->read_enabled = 0;
-            return r;
+            return (int)r;
           }
         }
       }
       /* If RSV1 bit is set then it is too early for utf-8 validation */
-      if((!wslay_get_rsv1(ctx->imsg->rsv) &&
-          ctx->imsg->opcode == WSLAY_TEXT_FRAME) ||
-            ctx->imsg->opcode == WSLAY_CONNECTION_CLOSE) {
+      if ((!wslay_get_rsv1(ctx->imsg->rsv) &&
+           ctx->imsg->opcode == WSLAY_TEXT_FRAME) ||
+          ctx->imsg->opcode == WSLAY_CONNECTION_CLOSE) {
         size_t i;
-        if(ctx->imsg->opcode == WSLAY_CONNECTION_CLOSE) {
+        if (ctx->imsg->opcode == WSLAY_CONNECTION_CLOSE) {
           i = 2;
         } else {
           i = 0;
         }
-        for(; i < iocb.data_length; ++i) {
+        for (; i < iocb.data_length; ++i) {
           uint32_t codep;
-          if(decode(&ctx->imsg->utf8state, &codep,
-                    iocb.data[i]) == UTF8_REJECT) {
-            if((r = wslay_event_queue_close_wrapper
-                (ctx, WSLAY_CODE_INVALID_FRAME_PAYLOAD_DATA, NULL, 0)) != 0) {
-              return r;
+          if (decode(&ctx->imsg->utf8state, &codep, iocb.data[i]) ==
+              UTF8_REJECT) {
+            if ((r = wslay_event_queue_close_wrapper(
+                     ctx, WSLAY_CODE_INVALID_FRAME_PAYLOAD_DATA, NULL, 0)) !=
+                0) {
+              return (int)r;
             }
             break;
           }
         }
       }
-      if(ctx->imsg->utf8state == UTF8_REJECT) {
+      if (ctx->imsg->utf8state == UTF8_REJECT) {
         break;
       }
       wslay_event_call_on_frame_recv_chunk_callback(ctx, &iocb);
-      if(iocb.data_length > 0) {
-        if(!wslay_event_config_get_no_buffering(ctx) ||
-           wslay_is_ctrl_frame(iocb.opcode)) {
+      if (iocb.data_length > 0) {
+        if (!wslay_event_config_get_no_buffering(ctx) ||
+            wslay_is_ctrl_frame(iocb.opcode)) {
           struct wslay_event_byte_chunk *chunk;
-          chunk = wslay_queue_tail(ctx->imsg->chunks);
-          wslay_event_byte_chunk_copy(chunk, ctx->ipayloadoff,
-                                      iocb.data, iocb.data_length);
+          chunk = wslay_struct_of(wslay_queue_tail(&ctx->imsg->chunks),
+                                  struct wslay_event_byte_chunk, qe);
+          wslay_event_byte_chunk_copy(chunk, ctx->ipayloadoff, iocb.data,
+                                      iocb.data_length);
         }
         ctx->ipayloadoff += iocb.data_length;
       }
-      if(ctx->ipayloadoff == ctx->ipayloadlen) {
-        if(ctx->imsg->fin &&
-           (ctx->imsg->opcode == WSLAY_TEXT_FRAME ||
-            ctx->imsg->opcode == WSLAY_CONNECTION_CLOSE) &&
-           ctx->imsg->utf8state != UTF8_ACCEPT) {
-          if((r = wslay_event_queue_close_wrapper
-              (ctx, WSLAY_CODE_INVALID_FRAME_PAYLOAD_DATA, NULL, 0)) != 0) {
-            return r;
+      if (ctx->ipayloadoff == ctx->ipayloadlen) {
+        if (ctx->imsg->fin &&
+            (ctx->imsg->opcode == WSLAY_TEXT_FRAME ||
+             ctx->imsg->opcode == WSLAY_CONNECTION_CLOSE) &&
+            ctx->imsg->utf8state != UTF8_ACCEPT) {
+          if ((r = wslay_event_queue_close_wrapper(
+                   ctx, WSLAY_CODE_INVALID_FRAME_PAYLOAD_DATA, NULL, 0)) != 0) {
+            return (int)r;
           }
           break;
         }
         wslay_event_call_on_frame_recv_end_callback(ctx);
-        if(ctx->imsg->fin) {
-          if(ctx->callbacks.on_msg_recv_callback ||
-             ctx->imsg->opcode == WSLAY_CONNECTION_CLOSE ||
-             ctx->imsg->opcode == WSLAY_PING) {
+        if (ctx->imsg->fin) {
+          if (ctx->callbacks.on_msg_recv_callback ||
+              ctx->imsg->opcode == WSLAY_CONNECTION_CLOSE ||
+              ctx->imsg->opcode == WSLAY_PING) {
             struct wslay_event_on_msg_recv_arg arg;
             uint16_t status_code = 0;
             uint8_t *msg = NULL;
             size_t msg_length = 0;
-            if(!wslay_event_config_get_no_buffering(ctx) ||
-               wslay_is_ctrl_frame(iocb.opcode)) {
-              msg = wslay_event_flatten_queue(ctx->imsg->chunks,
+            if (!wslay_event_config_get_no_buffering(ctx) ||
+                wslay_is_ctrl_frame(iocb.opcode)) {
+              msg = wslay_event_flatten_queue(&ctx->imsg->chunks,
                                               ctx->imsg->msg_length);
-              if(ctx->imsg->msg_length && !msg) {
+              if (ctx->imsg->msg_length && !msg) {
                 ctx->read_enabled = 0;
                 return WSLAY_ERR_NOMEM;
               }
               msg_length = ctx->imsg->msg_length;
             }
-            if(ctx->imsg->opcode == WSLAY_CONNECTION_CLOSE) {
+            if (ctx->imsg->opcode == WSLAY_CONNECTION_CLOSE) {
               const uint8_t *reason;
               size_t reason_length;
-              if(ctx->imsg->msg_length >= 2) {
+              if (ctx->imsg->msg_length >= 2) {
                 memcpy(&status_code, msg, 2);
                 status_code = ntohs(status_code);
-                if(!wslay_event_is_valid_status_code(status_code)) {
+                if (!wslay_event_is_valid_status_code(status_code)) {
                   free(msg);
-                  if((r = wslay_event_queue_close_wrapper
-                      (ctx, WSLAY_CODE_PROTOCOL_ERROR, NULL, 0)) != 0) {
-                    return r;
+                  if ((r = wslay_event_queue_close_wrapper(
+                           ctx, WSLAY_CODE_PROTOCOL_ERROR, NULL, 0)) != 0) {
+                    return (int)r;
                   }
                   break;
                 }
-                reason = msg+2;
-                reason_length = ctx->imsg->msg_length-2;
+                reason = msg + 2;
+                reason_length = ctx->imsg->msg_length - 2;
               } else {
                 reason = NULL;
                 reason_length = 0;
               }
               ctx->close_status |= WSLAY_CLOSE_RECEIVED;
               ctx->status_code_recv =
-                status_code == 0 ? WSLAY_CODE_NO_STATUS_RCVD : status_code;
-              if((r = wslay_event_queue_close_wrapper
-                  (ctx, status_code, reason, reason_length)) != 0) {
+                  status_code == 0 ? WSLAY_CODE_NO_STATUS_RCVD : status_code;
+              if ((r = wslay_event_queue_close_wrapper(ctx, status_code, reason,
+                                                       reason_length)) != 0) {
                 free(msg);
-                return r;
+                return (int)r;
               }
-            } else if(ctx->imsg->opcode == WSLAY_PING) {
+            } else if (ctx->imsg->opcode == WSLAY_PING) {
               struct wslay_event_msg pong_arg;
               pong_arg.opcode = WSLAY_PONG;
               pong_arg.msg = msg;
               pong_arg.msg_length = ctx->imsg->msg_length;
-              if((r = wslay_event_queue_msg(ctx, &pong_arg)) &&
-                 r != WSLAY_ERR_NO_MORE_MSG) {
+              if ((r = wslay_event_queue_msg(ctx, &pong_arg)) &&
+                  r != WSLAY_ERR_NO_MORE_MSG) {
                 ctx->read_enabled = 0;
                 free(msg);
-                return r;
+                return (int)r;
               }
             }
-            if(ctx->callbacks.on_msg_recv_callback) {
+            if (ctx->callbacks.on_msg_recv_callback) {
               arg.rsv = ctx->imsg->rsv;
               arg.opcode = ctx->imsg->opcode;
               arg.msg = msg;
@@ -753,17 +686,17 @@ int wslay_event_recv(wslay_event_context_ptr ctx)
             free(msg);
           }
           wslay_event_imsg_reset(ctx->imsg);
-          if(ctx->imsg == &ctx->imsgs[1]) {
+          if (ctx->imsg == &ctx->imsgs[1]) {
             ctx->imsg = &ctx->imsgs[0];
           }
         }
         ctx->ipayloadlen = ctx->ipayloadoff = 0;
       }
     } else {
-      if(r != WSLAY_ERR_WANT_READ ||
-         (ctx->error != WSLAY_ERR_WOULDBLOCK && ctx->error != 0)) {
-        if((r = wslay_event_queue_close_wrapper(ctx, 0, NULL, 0)) != 0) {
-          return r;
+      if (r != WSLAY_ERR_WANT_READ ||
+          (ctx->error != WSLAY_ERR_WOULDBLOCK && ctx->error != 0)) {
+        if ((r = wslay_event_queue_close_wrapper(ctx, 0, NULL, 0)) != 0) {
+          return (int)r;
         }
         return WSLAY_ERR_CALLBACK_FAILURE;
       }
@@ -773,26 +706,25 @@ int wslay_event_recv(wslay_event_context_ptr ctx)
   return 0;
 }
 
-static void wslay_event_on_non_fragmented_msg_popped
-(wslay_event_context_ptr ctx)
-{
+static void
+wslay_event_on_non_fragmented_msg_popped(wslay_event_context_ptr ctx) {
   ctx->omsg->fin = 1;
   ctx->opayloadlen = ctx->omsg->data_length;
   ctx->opayloadoff = 0;
 }
 
-static struct wslay_event_omsg* wslay_event_send_ctrl_queue_pop
-(wslay_event_context_ptr ctx)
-{
+static struct wslay_event_omsg *
+wslay_event_send_ctrl_queue_pop(wslay_event_context_ptr ctx) {
   /*
    * If Close control frame is queued, we don't send any control frame
    * other than Close.
    */
-  if(ctx->close_status & WSLAY_CLOSE_QUEUED) {
-    while(!wslay_queue_empty(ctx->send_ctrl_queue)) {
-      struct wslay_event_omsg *msg = wslay_queue_top(ctx->send_ctrl_queue);
-      wslay_queue_pop(ctx->send_ctrl_queue);
-      if(msg->opcode == WSLAY_CONNECTION_CLOSE) {
+  if (ctx->close_status & WSLAY_CLOSE_QUEUED) {
+    while (!wslay_queue_empty(&ctx->send_ctrl_queue)) {
+      struct wslay_event_omsg *msg = wslay_struct_of(
+          wslay_queue_top(&ctx->send_ctrl_queue), struct wslay_event_omsg, qe);
+      wslay_queue_pop(&ctx->send_ctrl_queue);
+      if (msg->opcode == WSLAY_CONNECTION_CLOSE) {
         return msg;
       } else {
         wslay_event_omsg_free(msg);
@@ -800,71 +732,73 @@ static struct wslay_event_omsg* wslay_event_send_ctrl_queue_pop
     }
     return NULL;
   } else {
-    struct wslay_event_omsg *msg = wslay_queue_top(ctx->send_ctrl_queue);
-    wslay_queue_pop(ctx->send_ctrl_queue);
+    struct wslay_event_omsg *msg = wslay_struct_of(
+        wslay_queue_top(&ctx->send_ctrl_queue), struct wslay_event_omsg, qe);
+    wslay_queue_pop(&ctx->send_ctrl_queue);
     return msg;
   }
 }
 
-int wslay_event_send(wslay_event_context_ptr ctx)
-{
+int wslay_event_send(wslay_event_context_ptr ctx) {
   struct wslay_frame_iocb iocb;
   ssize_t r;
-  while(ctx->write_enabled &&
-        (!wslay_queue_empty(ctx->send_queue) ||
-         !wslay_queue_empty(ctx->send_ctrl_queue) || ctx->omsg)) {
-    if(!ctx->omsg) {
-      if(wslay_queue_empty(ctx->send_ctrl_queue)) {
-        ctx->omsg = wslay_queue_top(ctx->send_queue);
-        wslay_queue_pop(ctx->send_queue);
+  while (ctx->write_enabled &&
+         (!wslay_queue_empty(&ctx->send_queue) ||
+          !wslay_queue_empty(&ctx->send_ctrl_queue) || ctx->omsg)) {
+    if (!ctx->omsg) {
+      if (wslay_queue_empty(&ctx->send_ctrl_queue)) {
+        ctx->omsg = wslay_struct_of(wslay_queue_top(&ctx->send_queue),
+                                    struct wslay_event_omsg, qe);
+        wslay_queue_pop(&ctx->send_queue);
       } else {
         ctx->omsg = wslay_event_send_ctrl_queue_pop(ctx);
-        if(ctx->omsg == NULL) {
+        if (ctx->omsg == NULL) {
           break;
         }
       }
-      if(ctx->omsg->type == WSLAY_NON_FRAGMENTED) {
+      if (ctx->omsg->type == WSLAY_NON_FRAGMENTED) {
         wslay_event_on_non_fragmented_msg_popped(ctx);
       }
-    } else if(!wslay_is_ctrl_frame(ctx->omsg->opcode) &&
-              ctx->frame_ctx->ostate == PREP_HEADER &&
-              !wslay_queue_empty(ctx->send_ctrl_queue)) {
-      if((r = wslay_queue_push_front(ctx->send_queue, ctx->omsg)) != 0) {
-        ctx->write_enabled = 0;
-        return r;
-      }
+    } else if (!wslay_is_ctrl_frame(ctx->omsg->opcode) &&
+               ctx->frame_ctx->ostate == PREP_HEADER &&
+               !wslay_queue_empty(&ctx->send_ctrl_queue)) {
+      wslay_queue_push_front(&ctx->send_queue, &ctx->omsg->qe);
       ctx->omsg = wslay_event_send_ctrl_queue_pop(ctx);
-      if(ctx->omsg == NULL) {
+      if (ctx->omsg == NULL) {
         break;
       }
       /* ctrl message has WSLAY_NON_FRAGMENTED */
       wslay_event_on_non_fragmented_msg_popped(ctx);
     }
-    if(ctx->omsg->type == WSLAY_NON_FRAGMENTED) {
+    if (ctx->omsg->type == WSLAY_NON_FRAGMENTED) {
       memset(&iocb, 0, sizeof(iocb));
       iocb.fin = 1;
       iocb.opcode = ctx->omsg->opcode;
       iocb.rsv = ctx->omsg->rsv;
-      iocb.mask = ctx->server^1;
-      iocb.data = ctx->omsg->data+ctx->opayloadoff;
-      iocb.data_length = ctx->opayloadlen-ctx->opayloadoff;
+      iocb.mask = ctx->server ^ 1;
+      iocb.data = ctx->omsg->data;
+      iocb.data_length = ctx->opayloadlen;
+      if (ctx->opayloadoff) {
+        iocb.data += ctx->opayloadoff;
+        iocb.data_length -= ctx->opayloadoff;
+      }
       iocb.payload_length = ctx->opayloadlen;
       r = wslay_frame_send(ctx->frame_ctx, &iocb);
-      if(r >= 0) {
-        ctx->opayloadoff += r;
-        if(ctx->opayloadoff == ctx->opayloadlen) {
+      if (r >= 0) {
+        ctx->opayloadoff += (uint64_t)r;
+        if (ctx->opayloadoff == ctx->opayloadlen) {
           --ctx->queued_msg_count;
           ctx->queued_msg_length -= ctx->omsg->data_length;
-          if(ctx->omsg->opcode == WSLAY_CONNECTION_CLOSE) {
+          if (ctx->omsg->opcode == WSLAY_CONNECTION_CLOSE) {
             uint16_t status_code = 0;
             ctx->write_enabled = 0;
             ctx->close_status |= WSLAY_CLOSE_SENT;
-            if(ctx->omsg->data_length >= 2) {
+            if (ctx->omsg->data_length >= 2) {
               memcpy(&status_code, ctx->omsg->data, 2);
               status_code = ntohs(status_code);
             }
             ctx->status_code_sent =
-              status_code == 0 ? WSLAY_CODE_NO_STATUS_RCVD : status_code;
+                status_code == 0 ? WSLAY_CODE_NO_STATUS_RCVD : status_code;
           }
           wslay_event_omsg_free(ctx->omsg);
           ctx->omsg = NULL;
@@ -872,30 +806,29 @@ int wslay_event_send(wslay_event_context_ptr ctx)
           break;
         }
       } else {
-        if(r != WSLAY_ERR_WANT_WRITE ||
-           (ctx->error != WSLAY_ERR_WOULDBLOCK && ctx->error != 0)) {
+        if (r != WSLAY_ERR_WANT_WRITE ||
+            (ctx->error != WSLAY_ERR_WOULDBLOCK && ctx->error != 0)) {
           ctx->write_enabled = 0;
           return WSLAY_ERR_CALLBACK_FAILURE;
         }
         break;
       }
     } else {
-      if(ctx->omsg->fin == 0 && ctx->obuflimit == ctx->obufmark) {
+      if (ctx->omsg->fin == 0 && ctx->obuflimit == ctx->obufmark) {
         int eof = 0;
         r = ctx->omsg->read_callback(ctx, ctx->obuf, sizeof(ctx->obuf),
-                                     &ctx->omsg->source,
-                                     &eof, ctx->user_data);
-        if(r == 0 && eof == 0) {
+                                     &ctx->omsg->source, &eof, ctx->user_data);
+        if (r == 0 && eof == 0) {
           break;
-        } else if(r < 0) {
+        } else if (r < 0) {
           ctx->write_enabled = 0;
           return WSLAY_ERR_CALLBACK_FAILURE;
         }
-        ctx->obuflimit = ctx->obuf+r;
-        if(eof) {
+        ctx->obuflimit = ctx->obuf + r;
+        if (eof) {
           ctx->omsg->fin = 1;
         }
-        ctx->opayloadlen = r;
+        ctx->opayloadlen = (uint64_t)r;
         ctx->opayloadoff = 0;
       }
       memset(&iocb, 0, sizeof(iocb));
@@ -904,29 +837,28 @@ int wslay_event_send(wslay_event_context_ptr ctx)
       iocb.rsv = ctx->omsg->rsv;
       iocb.mask = ctx->server ? 0 : 1;
       iocb.data = ctx->obufmark;
-      iocb.data_length = ctx->obuflimit-ctx->obufmark;
+      iocb.data_length = (size_t)(ctx->obuflimit - ctx->obufmark);
       iocb.payload_length = ctx->opayloadlen;
       r = wslay_frame_send(ctx->frame_ctx, &iocb);
-      if(r >= 0) {
+      if (r >= 0) {
         ctx->obufmark += r;
-        if(ctx->obufmark == ctx->obuflimit) {
+        if (ctx->obufmark == ctx->obuflimit) {
           ctx->obufmark = ctx->obuflimit = ctx->obuf;
-          if(ctx->omsg->fin) {
+          if (ctx->omsg->fin) {
             --ctx->queued_msg_count;
             wslay_event_omsg_free(ctx->omsg);
             ctx->omsg = NULL;
           } else {
             ctx->omsg->opcode = WSLAY_CONTINUATION_FRAME;
             /* RSV1 is not set on continuation frames */
-            ctx->omsg->rsv = ctx->omsg->rsv & ~WSLAY_RSV1_BIT;
+            ctx->omsg->rsv = (uint8_t)(ctx->omsg->rsv & ~WSLAY_RSV1_BIT);
           }
         } else {
           break;
         }
       } else {
-        if(r != WSLAY_ERR_WANT_WRITE ||
-           (ctx->error != WSLAY_ERR_WOULDBLOCK &&
-            ctx->error != 0)) {
+        if (r != WSLAY_ERR_WANT_WRITE ||
+            (ctx->error != WSLAY_ERR_WOULDBLOCK && ctx->error != 0)) {
           ctx->write_enabled = 0;
           return WSLAY_ERR_CALLBACK_FAILURE;
         }
@@ -937,91 +869,214 @@ int wslay_event_send(wslay_event_context_ptr ctx)
   return 0;
 }
 
-void wslay_event_set_error(wslay_event_context_ptr ctx, int val)
-{
+ssize_t wslay_event_write(wslay_event_context_ptr ctx, uint8_t *buf,
+                          size_t buflen) {
+  struct wslay_frame_iocb iocb;
+  ssize_t r;
+  uint8_t *buf_last = buf;
+  size_t wpayloadlen;
+  while (ctx->write_enabled &&
+         (!wslay_queue_empty(&ctx->send_queue) ||
+          !wslay_queue_empty(&ctx->send_ctrl_queue) || ctx->omsg)) {
+    if (!ctx->omsg) {
+      if (wslay_queue_empty(&ctx->send_ctrl_queue)) {
+        ctx->omsg = wslay_struct_of(wslay_queue_top(&ctx->send_queue),
+                                    struct wslay_event_omsg, qe);
+        wslay_queue_pop(&ctx->send_queue);
+      } else {
+        ctx->omsg = wslay_event_send_ctrl_queue_pop(ctx);
+        if (ctx->omsg == NULL) {
+          break;
+        }
+      }
+      if (ctx->omsg->type == WSLAY_NON_FRAGMENTED) {
+        wslay_event_on_non_fragmented_msg_popped(ctx);
+      }
+    } else if (!wslay_is_ctrl_frame(ctx->omsg->opcode) &&
+               ctx->frame_ctx->ostate == PREP_HEADER &&
+               !wslay_queue_empty(&ctx->send_ctrl_queue)) {
+      wslay_queue_push_front(&ctx->send_queue, &ctx->omsg->qe);
+      ctx->omsg = wslay_event_send_ctrl_queue_pop(ctx);
+      if (ctx->omsg == NULL) {
+        break;
+      }
+      /* ctrl message has WSLAY_NON_FRAGMENTED */
+      wslay_event_on_non_fragmented_msg_popped(ctx);
+    }
+    if (ctx->omsg->type == WSLAY_NON_FRAGMENTED) {
+      memset(&iocb, 0, sizeof(iocb));
+      iocb.fin = 1;
+      iocb.opcode = ctx->omsg->opcode;
+      iocb.rsv = ctx->omsg->rsv;
+      iocb.mask = ctx->server ^ 1;
+      iocb.data = ctx->omsg->data;
+      iocb.data_length = ctx->opayloadlen;
+      if (ctx->opayloadoff) {
+        iocb.data += ctx->opayloadoff;
+        iocb.data_length -= ctx->opayloadoff;
+      }
+      iocb.payload_length = ctx->opayloadlen;
+      r = wslay_frame_write(ctx->frame_ctx, &iocb, buf_last, buflen,
+                            &wpayloadlen);
+      if (r > 0) {
+        assert((size_t)r <= buflen);
+
+        buf_last += r;
+        buflen -= (size_t)r;
+
+        ctx->opayloadoff += wpayloadlen;
+        if (ctx->opayloadoff == ctx->opayloadlen) {
+          --ctx->queued_msg_count;
+          ctx->queued_msg_length -= ctx->omsg->data_length;
+          if (ctx->omsg->opcode == WSLAY_CONNECTION_CLOSE) {
+            uint16_t status_code = 0;
+            ctx->write_enabled = 0;
+            ctx->close_status |= WSLAY_CLOSE_SENT;
+            if (ctx->omsg->data_length >= 2) {
+              memcpy(&status_code, ctx->omsg->data, 2);
+              status_code = ntohs(status_code);
+            }
+            ctx->status_code_sent =
+                status_code == 0 ? WSLAY_CODE_NO_STATUS_RCVD : status_code;
+          }
+          wslay_event_omsg_free(ctx->omsg);
+          ctx->omsg = NULL;
+        } else {
+          break;
+        }
+      } else if (r == 0) {
+        return buf_last - buf;
+      } else {
+        return WSLAY_ERR_CALLBACK_FAILURE;
+      }
+    } else {
+      if (ctx->omsg->fin == 0 && ctx->obuflimit == ctx->obufmark) {
+        int eof = 0;
+        r = ctx->omsg->read_callback(ctx, ctx->obuf, sizeof(ctx->obuf),
+                                     &ctx->omsg->source, &eof, ctx->user_data);
+        if (r == 0 && eof == 0) {
+          break;
+        } else if (r < 0) {
+          ctx->write_enabled = 0;
+          return WSLAY_ERR_CALLBACK_FAILURE;
+        }
+        ctx->obuflimit = ctx->obuf + r;
+        if (eof) {
+          ctx->omsg->fin = 1;
+        }
+        ctx->opayloadlen = (uint64_t)r;
+        ctx->opayloadoff = 0;
+      }
+      memset(&iocb, 0, sizeof(iocb));
+      iocb.fin = ctx->omsg->fin;
+      iocb.opcode = ctx->omsg->opcode;
+      iocb.rsv = ctx->omsg->rsv;
+      iocb.mask = ctx->server ? 0 : 1;
+      iocb.data = ctx->obufmark;
+      iocb.data_length = (size_t)(ctx->obuflimit - ctx->obufmark);
+      iocb.payload_length = ctx->opayloadlen;
+      r = wslay_frame_write(ctx->frame_ctx, &iocb, buf_last, buflen,
+                            &wpayloadlen);
+      if (r > 0) {
+        assert((size_t)r <= buflen);
+
+        buf_last += r;
+        buflen -= (size_t)r;
+
+        ctx->obufmark += wpayloadlen;
+        if (ctx->obufmark == ctx->obuflimit) {
+          ctx->obufmark = ctx->obuflimit = ctx->obuf;
+          if (ctx->omsg->fin) {
+            --ctx->queued_msg_count;
+            wslay_event_omsg_free(ctx->omsg);
+            ctx->omsg = NULL;
+          } else {
+            ctx->omsg->opcode = WSLAY_CONTINUATION_FRAME;
+            /* RSV1 is not set on continuation frames */
+            ctx->omsg->rsv = (uint8_t)(ctx->omsg->rsv & ~WSLAY_RSV1_BIT);
+          }
+        } else {
+          break;
+        }
+      } else if (r == 0) {
+        return buf_last - buf;
+      } else {
+        return WSLAY_ERR_CALLBACK_FAILURE;
+      }
+    }
+  }
+  return buf_last - buf;
+}
+
+void wslay_event_set_error(wslay_event_context_ptr ctx, int val) {
   ctx->error = val;
 }
 
-int wslay_event_want_read(wslay_event_context_ptr ctx)
-{
+int wslay_event_want_read(wslay_event_context_ptr ctx) {
   return ctx->read_enabled;
 }
 
-int wslay_event_want_write(wslay_event_context_ptr ctx)
-{
+int wslay_event_want_write(wslay_event_context_ptr ctx) {
   return ctx->write_enabled &&
-    (!wslay_queue_empty(ctx->send_queue) ||
-     !wslay_queue_empty(ctx->send_ctrl_queue) || ctx->omsg);
+         (!wslay_queue_empty(&ctx->send_queue) ||
+          !wslay_queue_empty(&ctx->send_ctrl_queue) || ctx->omsg);
 }
 
-void wslay_event_shutdown_read(wslay_event_context_ptr ctx)
-{
+void wslay_event_shutdown_read(wslay_event_context_ptr ctx) {
   ctx->read_enabled = 0;
 }
 
-void wslay_event_shutdown_write(wslay_event_context_ptr ctx)
-{
+void wslay_event_shutdown_write(wslay_event_context_ptr ctx) {
   ctx->write_enabled = 0;
 }
 
-int wslay_event_get_read_enabled(wslay_event_context_ptr ctx)
-{
+int wslay_event_get_read_enabled(wslay_event_context_ptr ctx) {
   return ctx->read_enabled;
 }
 
-int wslay_event_get_write_enabled(wslay_event_context_ptr ctx)
-{
+int wslay_event_get_write_enabled(wslay_event_context_ptr ctx) {
   return ctx->write_enabled;
 }
 
-int wslay_event_get_close_received(wslay_event_context_ptr ctx)
-{
+int wslay_event_get_close_received(wslay_event_context_ptr ctx) {
   return (ctx->close_status & WSLAY_CLOSE_RECEIVED) > 0;
 }
 
-int wslay_event_get_close_sent(wslay_event_context_ptr ctx)
-{
+int wslay_event_get_close_sent(wslay_event_context_ptr ctx) {
   return (ctx->close_status & WSLAY_CLOSE_SENT) > 0;
 }
 
 void wslay_event_config_set_allowed_rsv_bits(wslay_event_context_ptr ctx,
-                                             uint8_t rsv)
-{
+                                             uint8_t rsv) {
   /* We currently only allow WSLAY_RSV1_BIT or WSLAY_RSV_NONE */
   ctx->allowed_rsv_bits = rsv & WSLAY_RSV1_BIT;
 }
 
-void wslay_event_config_set_no_buffering(wslay_event_context_ptr ctx, int val)
-{
-  if(val) {
+void wslay_event_config_set_no_buffering(wslay_event_context_ptr ctx, int val) {
+  if (val) {
     ctx->config |= WSLAY_CONFIG_NO_BUFFERING;
   } else {
-    ctx->config &= ~WSLAY_CONFIG_NO_BUFFERING;
+    ctx->config &= (uint32_t)~WSLAY_CONFIG_NO_BUFFERING;
   }
 }
 
 void wslay_event_config_set_max_recv_msg_length(wslay_event_context_ptr ctx,
-                                                uint64_t val)
-{
+                                                uint64_t val) {
   ctx->max_recv_msg_length = val;
 }
 
-uint16_t wslay_event_get_status_code_received(wslay_event_context_ptr ctx)
-{
+uint16_t wslay_event_get_status_code_received(wslay_event_context_ptr ctx) {
   return ctx->status_code_recv;
 }
 
-uint16_t wslay_event_get_status_code_sent(wslay_event_context_ptr ctx)
-{
+uint16_t wslay_event_get_status_code_sent(wslay_event_context_ptr ctx) {
   return ctx->status_code_sent;
 }
 
-size_t wslay_event_get_queued_msg_count(wslay_event_context_ptr ctx)
-{
+size_t wslay_event_get_queued_msg_count(wslay_event_context_ptr ctx) {
   return ctx->queued_msg_count;
 }
 
-size_t wslay_event_get_queued_msg_length(wslay_event_context_ptr ctx)
-{
+size_t wslay_event_get_queued_msg_length(wslay_event_context_ptr ctx) {
   return ctx->queued_msg_length;
 }
diff --git a/thirdparty/wslay/wslay_event.h b/thirdparty/wslay/wslay_event.h
index 36feb9036d..e30c3d1940 100644
--- a/thirdparty/wslay/wslay_event.h
+++ b/thirdparty/wslay/wslay_event.h
@@ -31,10 +31,10 @@
 
 #include <wslay/wslay.h>
 
-struct wslay_stack;
-struct wslay_queue;
+#include "wslay_queue.h"
 
 struct wslay_event_byte_chunk {
+  struct wslay_queue_entry qe;
   uint8_t *data;
   size_t data_length;
 };
@@ -44,16 +44,14 @@ struct wslay_event_imsg {
   uint8_t rsv;
   uint8_t opcode;
   uint32_t utf8state;
-  struct wslay_queue *chunks;
+  struct wslay_queue chunks;
   size_t msg_length;
 };
 
-enum wslay_event_msg_type {
-  WSLAY_NON_FRAGMENTED,
-  WSLAY_FRAGMENTED
-};
+enum wslay_event_msg_type { WSLAY_NON_FRAGMENTED, WSLAY_FRAGMENTED };
 
 struct wslay_event_omsg {
+  struct wslay_queue_entry qe;
   uint8_t fin;
   uint8_t opcode;
   uint8_t rsv;
@@ -77,9 +75,7 @@ enum wslay_event_close_status {
   WSLAY_CLOSE_SENT = 1 << 2
 };
 
-enum wslay_event_config {
-  WSLAY_CONFIG_NO_BUFFERING = 1 << 0
-};
+enum wslay_event_config { WSLAY_CONFIG_NO_BUFFERING = 1 << 0 };
 
 struct wslay_event_context {
   /* config status, bitwise OR of enum wslay_event_config values*/
@@ -118,9 +114,9 @@ struct wslay_event_context {
      is currently sent. */
   struct wslay_event_omsg *omsg;
   /* Queue for non-control frames */
-  struct wslay_queue/*<wslay_omsg*>*/ *send_queue;
+  struct wslay_queue /*<wslay_omsg*>*/ send_queue;
   /* Queue for control frames */
-  struct wslay_queue/*<wslay_omsg*>*/ *send_ctrl_queue;
+  struct wslay_queue /*<wslay_omsg*>*/ send_ctrl_queue;
   /* Size of send_queue + size of send_ctrl_queue */
   size_t queued_msg_count;
   /* The sum of message length in send_queue */
diff --git a/thirdparty/wslay/wslay_frame.c b/thirdparty/wslay/wslay_frame.c
index 445e750ca5..435044a3f4 100644
--- a/thirdparty/wslay/wslay_frame.c
+++ b/thirdparty/wslay/wslay_frame.c
@@ -34,10 +34,9 @@
 
 int wslay_frame_context_init(wslay_frame_context_ptr *ctx,
                              const struct wslay_frame_callbacks *callbacks,
-                             void *user_data)
-{
-  *ctx = (wslay_frame_context_ptr)malloc(sizeof(struct wslay_frame_context));
-  if(*ctx == NULL) {
+                             void *user_data) {
+  *ctx = malloc(sizeof(struct wslay_frame_context));
+  if (*ctx == NULL) {
     return -1;
   }
   memset(*ctx, 0, sizeof(struct wslay_frame_context));
@@ -50,38 +49,35 @@ int wslay_frame_context_init(wslay_frame_context_ptr *ctx,
   return 0;
 }
 
-void wslay_frame_context_free(wslay_frame_context_ptr ctx)
-{
-  free(ctx);
-}
+void wslay_frame_context_free(wslay_frame_context_ptr ctx) { free(ctx); }
 
 ssize_t wslay_frame_send(wslay_frame_context_ptr ctx,
-                         struct wslay_frame_iocb *iocb)
-{
-  if(iocb->data_length > iocb->payload_length) {
+                         struct wslay_frame_iocb *iocb) {
+  if (iocb->data_length > iocb->payload_length) {
     return WSLAY_ERR_INVALID_ARGUMENT;
   }
-  if(ctx->ostate == PREP_HEADER) {
+  if (ctx->ostate == PREP_HEADER) {
     uint8_t *hdptr = ctx->oheader;
     memset(ctx->oheader, 0, sizeof(ctx->oheader));
-    *hdptr |= (iocb->fin << 7) & 0x80u;
-    *hdptr |= (iocb->rsv << 4) & 0x70u;
-    *hdptr |= iocb->opcode & 0xfu;
+    *hdptr |= (uint8_t)((uint8_t)(iocb->fin << 7) & 0x80u);
+    *hdptr |= (uint8_t)((uint8_t)(iocb->rsv << 4) & 0x70u);
+    /* Suppress stubborn gcc-10 warning */
+    *hdptr |= (uint8_t)((uint8_t)(iocb->opcode << 0) & 0xfu);
     ++hdptr;
-    *hdptr |= (iocb->mask << 7) & 0x80u;
-    if(wslay_is_ctrl_frame(iocb->opcode) && iocb->payload_length > 125) {
+    *hdptr |= (uint8_t)((uint8_t)(iocb->mask << 7) & 0x80u);
+    if (wslay_is_ctrl_frame(iocb->opcode) && iocb->payload_length > 125) {
       return WSLAY_ERR_INVALID_ARGUMENT;
     }
-    if(iocb->payload_length < 126) {
-      *hdptr |= iocb->payload_length;
+    if (iocb->payload_length < 126) {
+      *hdptr |= (uint8_t)iocb->payload_length;
       ++hdptr;
-    } else if(iocb->payload_length < (1 << 16)) {
-      uint16_t len = htons(iocb->payload_length);
+    } else if (iocb->payload_length < (1 << 16)) {
+      uint16_t len = htons((uint16_t)iocb->payload_length);
       *hdptr |= 126;
       ++hdptr;
       memcpy(hdptr, &len, 2);
       hdptr += 2;
-    } else if(iocb->payload_length < (1ull << 63)) {
+    } else if (iocb->payload_length < (1ull << 63)) {
       uint64_t len = hton64(iocb->payload_length);
       *hdptr |= 127;
       ++hdptr;
@@ -91,9 +87,9 @@ ssize_t wslay_frame_send(wslay_frame_context_ptr ctx,
       /* Too large payload length */
       return WSLAY_ERR_INVALID_ARGUMENT;
     }
-    if(iocb->mask) {
-      if(ctx->callbacks.genmask_callback(ctx->omaskkey, 4,
-                                         ctx->user_data) != 0) {
+    if (iocb->mask) {
+      if (ctx->callbacks.genmask_callback(ctx->omaskkey, 4, ctx->user_data) !=
+          0) {
         return WSLAY_ERR_INVALID_CALLBACK;
       } else {
         ctx->omask = 1;
@@ -107,21 +103,21 @@ ssize_t wslay_frame_send(wslay_frame_context_ptr ctx,
     ctx->opayloadlen = iocb->payload_length;
     ctx->opayloadoff = 0;
   }
-  if(ctx->ostate == SEND_HEADER) {
-    ptrdiff_t len = ctx->oheaderlimit-ctx->oheadermark;
+  if (ctx->ostate == SEND_HEADER) {
+    ptrdiff_t len = ctx->oheaderlimit - ctx->oheadermark;
     ssize_t r;
     int flags = 0;
-    if(iocb->data_length > 0) {
+    if (iocb->data_length > 0) {
       flags |= WSLAY_MSG_MORE;
     };
-    r = ctx->callbacks.send_callback(ctx->oheadermark, len, flags,
+    r = ctx->callbacks.send_callback(ctx->oheadermark, (size_t)len, flags,
                                      ctx->user_data);
-    if(r > 0) {
-      if(r > len) {
+    if (r > 0) {
+      if (r > len) {
         return WSLAY_ERR_INVALID_CALLBACK;
       } else {
         ctx->oheadermark += r;
-        if(ctx->oheadermark == ctx->oheaderlimit) {
+        if (ctx->oheadermark == ctx->oheaderlimit) {
           ctx->ostate = SEND_PAYLOAD;
         } else {
           return WSLAY_ERR_WANT_WRITE;
@@ -131,34 +127,34 @@ ssize_t wslay_frame_send(wslay_frame_context_ptr ctx,
       return WSLAY_ERR_WANT_WRITE;
     }
   }
-  if(ctx->ostate == SEND_PAYLOAD) {
+  if (ctx->ostate == SEND_PAYLOAD) {
     size_t totallen = 0;
-    if(iocb->data_length > 0) {
-      if(ctx->omask) {
+    if (iocb->data_length > 0) {
+      if (ctx->omask) {
         uint8_t temp[4096];
         const uint8_t *datamark = iocb->data,
-          *datalimit = iocb->data+iocb->data_length;
-        while(datamark < datalimit) {
-          size_t datalen = datalimit - datamark;
-          const uint8_t *writelimit = datamark+
-            wslay_min(sizeof(temp), datalen);
-          size_t writelen = writelimit-datamark;
+                      *datalimit = iocb->data + iocb->data_length;
+        while (datamark < datalimit) {
+          size_t datalen = (size_t)(datalimit - datamark);
+          const uint8_t *writelimit =
+              datamark + wslay_min(sizeof(temp), datalen);
+          size_t writelen = (size_t)(writelimit - datamark);
           ssize_t r;
           size_t i;
-          for(i = 0; i < writelen; ++i) {
-            temp[i] = datamark[i]^ctx->omaskkey[(ctx->opayloadoff+i)%4];
+          for (i = 0; i < writelen; ++i) {
+            temp[i] = datamark[i] ^ ctx->omaskkey[(ctx->opayloadoff + i) % 4];
           }
           r = ctx->callbacks.send_callback(temp, writelen, 0, ctx->user_data);
-          if(r > 0) {
-            if((size_t)r > writelen) {
+          if (r > 0) {
+            if ((size_t)r > writelen) {
               return WSLAY_ERR_INVALID_CALLBACK;
             } else {
               datamark += r;
-              ctx->opayloadoff += r;
-              totallen += r;
+              ctx->opayloadoff += (uint64_t)r;
+              totallen += (size_t)r;
             }
           } else {
-            if(totallen > 0) {
+            if (totallen > 0) {
               break;
             } else {
               return WSLAY_ERR_WANT_WRITE;
@@ -169,44 +165,148 @@ ssize_t wslay_frame_send(wslay_frame_context_ptr ctx,
         ssize_t r;
         r = ctx->callbacks.send_callback(iocb->data, iocb->data_length, 0,
                                          ctx->user_data);
-        if(r > 0) {
-          if((size_t)r > iocb->data_length) {
+        if (r > 0) {
+          if ((size_t)r > iocb->data_length) {
             return WSLAY_ERR_INVALID_CALLBACK;
           } else {
-            ctx->opayloadoff += r;
-            totallen = r;
+            ctx->opayloadoff += (uint64_t)r;
+            totallen = (size_t)r;
           }
         } else {
           return WSLAY_ERR_WANT_WRITE;
         }
       }
     }
-    if(ctx->opayloadoff == ctx->opayloadlen) {
+    if (ctx->opayloadoff == ctx->opayloadlen) {
       ctx->ostate = PREP_HEADER;
     }
-    return totallen;
+    return (ssize_t)totallen;
   }
   return WSLAY_ERR_INVALID_ARGUMENT;
 }
 
-static void wslay_shift_ibuf(wslay_frame_context_ptr ctx)
-{
-  ptrdiff_t len = ctx->ibuflimit-ctx->ibufmark;
-  memmove(ctx->ibuf, ctx->ibufmark, len);
-  ctx->ibuflimit = ctx->ibuf+len;
+ssize_t wslay_frame_write(wslay_frame_context_ptr ctx,
+                          struct wslay_frame_iocb *iocb, uint8_t *buf,
+                          size_t buflen, size_t *pwpayloadlen) {
+  uint8_t *buf_last = buf;
+  size_t i;
+  size_t hdlen;
+
+  *pwpayloadlen = 0;
+
+  if (iocb->data_length > iocb->payload_length) {
+    return WSLAY_ERR_INVALID_ARGUMENT;
+  }
+
+  switch (ctx->ostate) {
+  case PREP_HEADER:
+  case PREP_HEADER_NOBUF:
+    hdlen = 2;
+    if (iocb->payload_length < 126) {
+      /* nothing to do */
+    } else if (iocb->payload_length < (1 << 16)) {
+      hdlen += 2;
+    } else if (iocb->payload_length < (1ull << 63)) {
+      hdlen += 8;
+    }
+    if (iocb->mask) {
+      hdlen += 4;
+    }
+
+    if (buflen < hdlen) {
+      ctx->ostate = PREP_HEADER_NOBUF;
+      return 0;
+    }
+
+    memset(buf_last, 0, hdlen);
+    *buf_last |= (uint8_t)((uint8_t)(iocb->fin << 7) & 0x80u);
+    *buf_last |= (uint8_t)((uint8_t)(iocb->rsv << 4) & 0x70u);
+    /* Suppress stubborn gcc-10 warning */
+    *buf_last |= (uint8_t)((uint8_t)(iocb->opcode << 0) & 0xfu);
+    ++buf_last;
+    *buf_last |= (uint8_t)((uint8_t)(iocb->mask << 7) & 0x80u);
+    if (wslay_is_ctrl_frame(iocb->opcode) && iocb->payload_length > 125) {
+      return WSLAY_ERR_INVALID_ARGUMENT;
+    }
+    if (iocb->payload_length < 126) {
+      *buf_last |= (uint8_t)iocb->payload_length;
+      ++buf_last;
+    } else if (iocb->payload_length < (1 << 16)) {
+      uint16_t len = htons((uint16_t)iocb->payload_length);
+      *buf_last |= 126;
+      ++buf_last;
+      memcpy(buf_last, &len, 2);
+      buf_last += 2;
+    } else if (iocb->payload_length < (1ull << 63)) {
+      uint64_t len = hton64(iocb->payload_length);
+      *buf_last |= 127;
+      ++buf_last;
+      memcpy(buf_last, &len, 8);
+      buf_last += 8;
+    } else {
+      /* Too large payload length */
+      return WSLAY_ERR_INVALID_ARGUMENT;
+    }
+    if (iocb->mask) {
+      if (ctx->callbacks.genmask_callback(ctx->omaskkey, 4, ctx->user_data) !=
+          0) {
+        return WSLAY_ERR_INVALID_CALLBACK;
+      } else {
+        ctx->omask = 1;
+        memcpy(buf_last, ctx->omaskkey, 4);
+        buf_last += 4;
+      }
+    }
+    ctx->ostate = SEND_PAYLOAD;
+    ctx->opayloadlen = iocb->payload_length;
+    ctx->opayloadoff = 0;
+
+    buflen -= (size_t)(buf_last - buf);
+    /* fall through */
+  case SEND_PAYLOAD:
+    if (iocb->data_length > 0) {
+      size_t writelen = wslay_min(buflen, iocb->data_length);
+
+      if (ctx->omask) {
+        for (i = 0; i < writelen; ++i) {
+          *buf_last++ =
+              iocb->data[i] ^ ctx->omaskkey[(ctx->opayloadoff + i) % 4];
+        }
+      } else {
+        memcpy(buf_last, iocb->data, writelen);
+        buf_last += writelen;
+      }
+
+      ctx->opayloadoff += writelen;
+      *pwpayloadlen = writelen;
+    }
+
+    if (ctx->opayloadoff == ctx->opayloadlen) {
+      ctx->ostate = PREP_HEADER;
+    }
+
+    return buf_last - buf;
+  default:
+    return WSLAY_ERR_INVALID_ARGUMENT;
+  }
+}
+
+static void wslay_shift_ibuf(wslay_frame_context_ptr ctx) {
+  ptrdiff_t len = ctx->ibuflimit - ctx->ibufmark;
+  memmove(ctx->ibuf, ctx->ibufmark, (size_t)len);
+  ctx->ibuflimit = ctx->ibuf + len;
   ctx->ibufmark = ctx->ibuf;
 }
 
-static ssize_t wslay_recv(wslay_frame_context_ptr ctx)
-{
+static ssize_t wslay_recv(wslay_frame_context_ptr ctx) {
   ssize_t r;
-  if(ctx->ibufmark != ctx->ibuf) {
+  if (ctx->ibufmark != ctx->ibuf) {
     wslay_shift_ibuf(ctx);
   }
-  r = ctx->callbacks.recv_callback
-    (ctx->ibuflimit, ctx->ibuf+sizeof(ctx->ibuf)-ctx->ibuflimit,
-     0, ctx->user_data);
-  if(r > 0) {
+  r = ctx->callbacks.recv_callback(
+      ctx->ibuflimit, (size_t)(ctx->ibuf + sizeof(ctx->ibuf) - ctx->ibuflimit),
+      0, ctx->user_data);
+  if (r > 0) {
     ctx->ibuflimit += r;
   } else {
     r = WSLAY_ERR_WANT_READ;
@@ -217,17 +317,16 @@ static ssize_t wslay_recv(wslay_frame_context_ptr ctx)
 #define WSLAY_AVAIL_IBUF(ctx) ((size_t)(ctx->ibuflimit - ctx->ibufmark))
 
 ssize_t wslay_frame_recv(wslay_frame_context_ptr ctx,
-                         struct wslay_frame_iocb *iocb)
-{
+                         struct wslay_frame_iocb *iocb) {
   ssize_t r;
-  if(ctx->istate == RECV_HEADER1) {
+  if (ctx->istate == RECV_HEADER1) {
     uint8_t fin, opcode, rsv, payloadlen;
-    if(WSLAY_AVAIL_IBUF(ctx) < ctx->ireqread) {
-      if((r = wslay_recv(ctx)) <= 0) {
+    if (WSLAY_AVAIL_IBUF(ctx) < ctx->ireqread) {
+      if ((r = wslay_recv(ctx)) <= 0) {
         return r;
       }
     }
-    if(WSLAY_AVAIL_IBUF(ctx) < ctx->ireqread) {
+    if (WSLAY_AVAIL_IBUF(ctx) < ctx->ireqread) {
       return WSLAY_ERR_WANT_READ;
     }
     fin = (ctx->ibufmark[0] >> 7) & 1;
@@ -240,19 +339,19 @@ ssize_t wslay_frame_recv(wslay_frame_context_ptr ctx,
     ctx->imask = (ctx->ibufmark[0] >> 7) & 1;
     payloadlen = ctx->ibufmark[0] & 0x7fu;
     ++ctx->ibufmark;
-    if(wslay_is_ctrl_frame(opcode) && (payloadlen > 125 || !fin)) {
+    if (wslay_is_ctrl_frame(opcode) && (payloadlen > 125 || !fin)) {
       return WSLAY_ERR_PROTO;
     }
-    if(payloadlen == 126) {
+    if (payloadlen == 126) {
       ctx->istate = RECV_EXT_PAYLOADLEN;
       ctx->ireqread = 2;
-    } else if(payloadlen == 127) {
+    } else if (payloadlen == 127) {
       ctx->istate = RECV_EXT_PAYLOADLEN;
       ctx->ireqread = 8;
     } else {
       ctx->ipayloadlen = payloadlen;
       ctx->ipayloadoff = 0;
-      if(ctx->imask) {
+      if (ctx->imask) {
         ctx->istate = RECV_MASKKEY;
         ctx->ireqread = 4;
       } else {
@@ -260,42 +359,41 @@ ssize_t wslay_frame_recv(wslay_frame_context_ptr ctx,
       }
     }
   }
-  if(ctx->istate == RECV_EXT_PAYLOADLEN) {
-    if(WSLAY_AVAIL_IBUF(ctx) < ctx->ireqread) {
-      if((r = wslay_recv(ctx)) <= 0) {
+  if (ctx->istate == RECV_EXT_PAYLOADLEN) {
+    if (WSLAY_AVAIL_IBUF(ctx) < ctx->ireqread) {
+      if ((r = wslay_recv(ctx)) <= 0) {
         return r;
       }
-      if(WSLAY_AVAIL_IBUF(ctx) < ctx->ireqread) {
+      if (WSLAY_AVAIL_IBUF(ctx) < ctx->ireqread) {
         return WSLAY_ERR_WANT_READ;
       }
     }
     ctx->ipayloadlen = 0;
     ctx->ipayloadoff = 0;
-    memcpy((uint8_t*)&ctx->ipayloadlen+(8-ctx->ireqread),
-           ctx->ibufmark, ctx->ireqread);
+    memcpy((uint8_t *)&ctx->ipayloadlen + (8 - ctx->ireqread), ctx->ibufmark,
+           ctx->ireqread);
     ctx->ipayloadlen = ntoh64(ctx->ipayloadlen);
     ctx->ibufmark += ctx->ireqread;
-    if(ctx->ireqread == 8) {
-      if(ctx->ipayloadlen < (1 << 16) ||
-         ctx->ipayloadlen & (1ull << 63)) {
+    if (ctx->ireqread == 8) {
+      if (ctx->ipayloadlen < (1 << 16) || ctx->ipayloadlen & (1ull << 63)) {
         return WSLAY_ERR_PROTO;
       }
-    } else if(ctx->ipayloadlen < 126) {
+    } else if (ctx->ipayloadlen < 126) {
       return WSLAY_ERR_PROTO;
     }
-    if(ctx->imask) {
+    if (ctx->imask) {
       ctx->istate = RECV_MASKKEY;
       ctx->ireqread = 4;
     } else {
       ctx->istate = RECV_PAYLOAD;
     }
   }
-  if(ctx->istate == RECV_MASKKEY) {
-    if(WSLAY_AVAIL_IBUF(ctx) < ctx->ireqread) {
-      if((r = wslay_recv(ctx)) <= 0) {
+  if (ctx->istate == RECV_MASKKEY) {
+    if (WSLAY_AVAIL_IBUF(ctx) < ctx->ireqread) {
+      if ((r = wslay_recv(ctx)) <= 0) {
         return r;
       }
-      if(WSLAY_AVAIL_IBUF(ctx) < ctx->ireqread) {
+      if (WSLAY_AVAIL_IBUF(ctx) < ctx->ireqread) {
         return WSLAY_ERR_WANT_READ;
       }
     }
@@ -303,25 +401,25 @@ ssize_t wslay_frame_recv(wslay_frame_context_ptr ctx,
     ctx->ibufmark += 4;
     ctx->istate = RECV_PAYLOAD;
   }
-  if(ctx->istate == RECV_PAYLOAD) {
+  if (ctx->istate == RECV_PAYLOAD) {
     uint8_t *readlimit, *readmark;
-    uint64_t rempayloadlen = ctx->ipayloadlen-ctx->ipayloadoff;
-    if(WSLAY_AVAIL_IBUF(ctx) == 0 && rempayloadlen > 0) {
-      if((r = wslay_recv(ctx)) <= 0) {
+    uint64_t rempayloadlen = ctx->ipayloadlen - ctx->ipayloadoff;
+    if (WSLAY_AVAIL_IBUF(ctx) == 0 && rempayloadlen > 0) {
+      if ((r = wslay_recv(ctx)) <= 0) {
         return r;
       }
     }
     readmark = ctx->ibufmark;
-    readlimit = WSLAY_AVAIL_IBUF(ctx) < rempayloadlen ?
-      ctx->ibuflimit : ctx->ibufmark+rempayloadlen;
-    if(ctx->imask) {
-      for(; ctx->ibufmark != readlimit;
-          ++ctx->ibufmark, ++ctx->ipayloadoff) {
+    readlimit = WSLAY_AVAIL_IBUF(ctx) < rempayloadlen
+                    ? ctx->ibuflimit
+                    : ctx->ibufmark + rempayloadlen;
+    if (ctx->imask) {
+      for (; ctx->ibufmark != readlimit; ++ctx->ibufmark, ++ctx->ipayloadoff) {
         ctx->ibufmark[0] ^= ctx->imaskkey[ctx->ipayloadoff % 4];
       }
     } else {
       ctx->ibufmark = readlimit;
-      ctx->ipayloadoff += readlimit-readmark;
+      ctx->ipayloadoff += (uint64_t)(readlimit - readmark);
     }
     iocb->fin = ctx->iom.fin;
     iocb->rsv = ctx->iom.rsv;
@@ -329,12 +427,12 @@ ssize_t wslay_frame_recv(wslay_frame_context_ptr ctx,
     iocb->payload_length = ctx->ipayloadlen;
     iocb->mask = ctx->imask;
     iocb->data = readmark;
-    iocb->data_length = ctx->ibufmark-readmark;
-    if(ctx->ipayloadlen == ctx->ipayloadoff) {
+    iocb->data_length = (size_t)(ctx->ibufmark - readmark);
+    if (ctx->ipayloadlen == ctx->ipayloadoff) {
       ctx->istate = RECV_HEADER1;
       ctx->ireqread = 2;
     }
-    return iocb->data_length;
+    return (ssize_t)iocb->data_length;
   }
   return WSLAY_ERR_INVALID_ARGUMENT;
 }
diff --git a/thirdparty/wslay/wslay_frame.h b/thirdparty/wslay/wslay_frame.h
index 6a75858cc7..3ac98112b5 100644
--- a/thirdparty/wslay/wslay_frame.h
+++ b/thirdparty/wslay/wslay_frame.h
@@ -33,6 +33,7 @@
 
 enum wslay_frame_state {
   PREP_HEADER,
+  PREP_HEADER_NOBUF,
   SEND_HEADER,
   SEND_PAYLOAD,
   RECV_HEADER1,
diff --git a/thirdparty/wslay/wslay_stack.h b/thirdparty/wslay/wslay_macro.h
index 16e4e968eb..a06cff98e1 100644
--- a/thirdparty/wslay/wslay_stack.h
+++ b/thirdparty/wslay/wslay_macro.h
@@ -1,7 +1,7 @@
 /*
  * Wslay - The WebSocket Library
  *
- * Copyright (c) 2011, 2012 Tatsuhiro Tsujikawa
+ * Copyright (c) 2020 Tatsuhiro Tsujikawa
  *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and associated documentation files (the
@@ -22,8 +22,8 @@
  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-#ifndef WSLAY_STACK_H
-#define WSLAY_STACK_H
+#ifndef WSLAY_MACRO_H
+#define WSLAY_MACRO_H
 
 #ifdef HAVE_CONFIG_H
 #  include "config.h"
@@ -31,20 +31,9 @@
 
 #include <wslay/wslay.h>
 
-struct wslay_stack_cell {
-  void *data;
-  struct wslay_stack_cell *next;
-};
+#include <stddef.h>
 
-struct wslay_stack {
-  struct wslay_stack_cell *top;
-};
+#define wslay_struct_of(ptr, type, member)                                     \
+  ((type *)(void *)((char *)(ptr)-offsetof(type, member)))
 
-struct wslay_stack* wslay_stack_new();
-void wslay_stack_free(struct wslay_stack *stack);
-int wslay_stack_push(struct wslay_stack *stack, void *data);
-void wslay_stack_pop(struct wslay_stack *stack);
-void* wslay_stack_top(struct wslay_stack *stack);
-int wslay_stack_empty(struct wslay_stack *stack);
-
-#endif /* WSLAY_STACK_H */
+#endif /* WSLAY_MACRO_H */
diff --git a/thirdparty/wslay/wslay_net.c b/thirdparty/wslay/wslay_net.c
index d3867c21fb..e256158b4c 100644
--- a/thirdparty/wslay/wslay_net.c
+++ b/thirdparty/wslay/wslay_net.c
@@ -26,10 +26,9 @@
 
 #ifndef WORDS_BIGENDIAN
 
-uint64_t wslay_byteswap64(uint64_t x)
-{
+uint64_t wslay_byteswap64(uint64_t x) {
   uint64_t u = ntohl(x & 0xffffffffllu);
-  uint64_t l = ntohl(x >> 32);
+  uint64_t l = ntohl((uint32_t)(x >> 32));
   return (u << 32) | l;
 }
 
diff --git a/thirdparty/wslay/wslay_queue.c b/thirdparty/wslay/wslay_queue.c
index 8d2669687d..ebde3ba83d 100644
--- a/thirdparty/wslay/wslay_queue.c
+++ b/thirdparty/wslay/wslay_queue.c
@@ -27,91 +27,51 @@
 #include <string.h>
 #include <assert.h>
 
-struct wslay_queue* wslay_queue_new(void)
-{
-  struct wslay_queue *queue = (struct wslay_queue*)malloc
-    (sizeof(struct wslay_queue));
-  if(!queue) {
-    return NULL;
-  }
-  queue->top = queue->tail = NULL;
-  return queue;
-}
+#include "wslay_macro.h"
 
-void wslay_queue_free(struct wslay_queue *queue)
-{
-  if(!queue) {
-    return;
-  } else {
-    struct wslay_queue_cell *p = queue->top;
-    while(p) {
-      struct wslay_queue_cell *next = p->next;
-      free(p);
-      p = next;
-    }
-    free(queue);
-  }
+void wslay_queue_init(struct wslay_queue *queue) {
+  queue->top = NULL;
+  queue->tail = &queue->top;
 }
 
-int wslay_queue_push(struct wslay_queue *queue, void *data)
-{
-  struct wslay_queue_cell *new_cell = (struct wslay_queue_cell*)malloc
-    (sizeof(struct wslay_queue_cell));
-  if(!new_cell) {
-    return WSLAY_ERR_NOMEM;
-  }
-  new_cell->data = data;
-  new_cell->next = NULL;
-  if(queue->tail) {
-    queue->tail->next = new_cell;
-    queue->tail = new_cell;
+void wslay_queue_deinit(struct wslay_queue *queue) { (void)queue; }
 
-  } else {
-    queue->top = queue->tail = new_cell;
-  }
-  return 0;
+void wslay_queue_push(struct wslay_queue *queue,
+                      struct wslay_queue_entry *ent) {
+  ent->next = NULL;
+  *queue->tail = ent;
+  queue->tail = &ent->next;
 }
 
-int wslay_queue_push_front(struct wslay_queue *queue, void *data)
-{
-  struct wslay_queue_cell *new_cell = (struct wslay_queue_cell*)malloc
-    (sizeof(struct wslay_queue_cell));
-  if(!new_cell) {
-    return WSLAY_ERR_NOMEM;
-  }
-  new_cell->data = data;
-  new_cell->next = queue->top;
-  queue->top = new_cell;
-  if(!queue->tail) {
-    queue->tail = queue->top;
+void wslay_queue_push_front(struct wslay_queue *queue,
+                            struct wslay_queue_entry *ent) {
+  ent->next = queue->top;
+  queue->top = ent;
+
+  if (ent->next == NULL) {
+    queue->tail = &ent->next;
   }
-  return 0;
 }
 
-void wslay_queue_pop(struct wslay_queue *queue)
-{
-  struct wslay_queue_cell *top = queue->top;
-  assert(top);
-  queue->top = top->next;
-  if(top == queue->tail) {
-    queue->tail = NULL;
+void wslay_queue_pop(struct wslay_queue *queue) {
+  assert(queue->top);
+  queue->top = queue->top->next;
+  if (queue->top == NULL) {
+    queue->tail = &queue->top;
   }
-  free(top);
 }
 
-void* wslay_queue_top(struct wslay_queue *queue)
-{
+struct wslay_queue_entry *wslay_queue_top(struct wslay_queue *queue) {
   assert(queue->top);
-  return queue->top->data;
+  return queue->top;
 }
 
-void* wslay_queue_tail(struct wslay_queue *queue)
-{
-  assert(queue->tail);
-  return queue->tail->data;
+struct wslay_queue_entry *wslay_queue_tail(struct wslay_queue *queue) {
+  assert(queue->top);
+  return wslay_struct_of(queue->tail, struct wslay_queue_entry, next);
 }
 
-int wslay_queue_empty(struct wslay_queue *queue)
-{
+int wslay_queue_empty(struct wslay_queue *queue) {
+  assert(queue->top || queue->tail == &queue->top);
   return queue->top == NULL;
 }
diff --git a/thirdparty/wslay/wslay_queue.h b/thirdparty/wslay/wslay_queue.h
index 55e78a042e..fa16aea489 100644
--- a/thirdparty/wslay/wslay_queue.h
+++ b/thirdparty/wslay/wslay_queue.h
@@ -31,23 +31,23 @@
 
 #include <wslay/wslay.h>
 
-struct wslay_queue_cell {
-  void *data;
-  struct wslay_queue_cell *next;
+struct wslay_queue_entry {
+  struct wslay_queue_entry *next;
 };
 
 struct wslay_queue {
-  struct wslay_queue_cell *top;
-  struct wslay_queue_cell *tail;
+  struct wslay_queue_entry *top;
+  struct wslay_queue_entry **tail;
 };
 
-struct wslay_queue* wslay_queue_new(void);
-void wslay_queue_free(struct wslay_queue *queue);
-int wslay_queue_push(struct wslay_queue *queue, void *data);
-int wslay_queue_push_front(struct wslay_queue *queue, void *data);
+void wslay_queue_init(struct wslay_queue *queue);
+void wslay_queue_deinit(struct wslay_queue *queue);
+void wslay_queue_push(struct wslay_queue *queue, struct wslay_queue_entry *ent);
+void wslay_queue_push_front(struct wslay_queue *queue,
+                            struct wslay_queue_entry *ent);
 void wslay_queue_pop(struct wslay_queue *queue);
-void* wslay_queue_top(struct wslay_queue *queue);
-void* wslay_queue_tail(struct wslay_queue *queue);
+struct wslay_queue_entry *wslay_queue_top(struct wslay_queue *queue);
+struct wslay_queue_entry *wslay_queue_tail(struct wslay_queue *queue);
 int wslay_queue_empty(struct wslay_queue *queue);
 
 #endif /* WSLAY_QUEUE_H */
diff --git a/thirdparty/wslay/wslay_stack.c b/thirdparty/wslay/wslay_stack.c
deleted file mode 100644
index 0e05d74031..0000000000
--- a/thirdparty/wslay/wslay_stack.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Wslay - The WebSocket Library
- *
- * Copyright (c) 2011, 2012 Tatsuhiro Tsujikawa
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-#include "wslay_stack.h"
-
-#include <string.h>
-#include <assert.h>
-
-struct wslay_stack* wslay_stack_new()
-{
-  struct wslay_stack *stack = (struct wslay_stack*)malloc
-    (sizeof(struct wslay_stack));
-  if(!stack) {
-    return NULL;
-  }
-  stack->top = NULL;
-  return stack;
-}
-
-void wslay_stack_free(struct wslay_stack *stack)
-{
-  struct wslay_stack_cell *p;
-  if(!stack) {
-    return;
-  }
-  p = stack->top;
-  while(p) {
-    struct wslay_stack_cell *next = p->next;
-    free(p);
-    p = next;
-  }
-  free(stack);
-}
-
-int wslay_stack_push(struct wslay_stack *stack, void *data)
-{
-  struct wslay_stack_cell *new_cell = (struct wslay_stack_cell*)malloc
-    (sizeof(struct wslay_stack_cell));
-  if(!new_cell) {
-    return WSLAY_ERR_NOMEM;
-  }
-  new_cell->data = data;
-  new_cell->next = stack->top;
-  stack->top = new_cell;
-  return 0;
-}
-
-void wslay_stack_pop(struct wslay_stack *stack)
-{
-  struct wslay_stack_cell *top = stack->top;
-  assert(top);
-  stack->top = top->next;
-  free(top);
-}
-
-void* wslay_stack_top(struct wslay_stack *stack)
-{
-  assert(stack->top);
-  return stack->top->data;
-}
-
-int wslay_stack_empty(struct wslay_stack *stack)
-{
-  return stack->top == NULL;
-}