1 files changed, 86 insertions, 0 deletions
diff --git a/thirdparty/wslay/wslay_stack.c b/thirdparty/wslay/wslay_stack.c
new file mode 100644
index 0000000000..0e05d74031
--- /dev/null
+++ b/thirdparty/wslay/wslay_stack.c
@@ -0,0 +1,86 @@
+/*
+ * 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;
+}