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authorKarroffel <therzog@mail.de>2017-03-08 02:50:13 +0100
committerKarroffel <therzog@mail.de>2017-03-29 23:05:15 +0200
commit2281942fb3ac5889abc6e95df27a80e71fe32c0e (patch)
tree770e8ac3c7b7b8b241a04eb7495405e6d0a0068d
parent92b6c8095acc8348da7657dde357202840c26382 (diff)
Added methods for opening dynamic libraries to OS
-rw-r--r--core/os/os.h4
-rw-r--r--drivers/unix/os_unix.cpp30
-rw-r--r--drivers/unix/os_unix.h4
-rw-r--r--platform/windows/os_windows.cpp26
-rw-r--r--platform/windows/os_windows.h4
5 files changed, 68 insertions, 0 deletions
diff --git a/core/os/os.h b/core/os/os.h
index 46e57e5186..dbcbaaedce 100644
--- a/core/os/os.h
+++ b/core/os/os.h
@@ -177,6 +177,10 @@ public:
virtual void set_borderless_window(int p_borderless) {}
virtual bool get_borderless_window() { return 0; }
+ virtual Error open_dynamic_library(const String p_path, void* &p_library_handle) { return ERR_UNAVAILABLE; };
+ virtual Error close_dynamic_library(void* p_library_handle) { return ERR_UNAVAILABLE; };
+ virtual Error get_dynamic_library_symbol_handle(void* p_library_handle, const String p_name, void* &p_symbol_handle) { return ERR_UNAVAILABLE; };
+
virtual void set_keep_screen_on(bool p_enabled);
virtual bool is_keep_screen_on() const;
virtual void set_low_processor_usage_mode(bool p_enabled);
diff --git a/drivers/unix/os_unix.cpp b/drivers/unix/os_unix.cpp
index e2a544b676..999e20621b 100644
--- a/drivers/unix/os_unix.cpp
+++ b/drivers/unix/os_unix.cpp
@@ -54,6 +54,7 @@
#endif
#include "global_config.h"
#include <assert.h>
+#include <dlfcn.h>
#include <errno.h>
#include <poll.h>
#include <signal.h>
@@ -435,6 +436,35 @@ String OS_Unix::get_locale() const {
return locale;
}
+Error OS_Unix::open_dynamic_library(const String p_path, void* &p_library_handle) {
+ p_library_handle = dlopen(p_path.utf8().get_data(), RTLD_NOW);
+ if(!p_library_handle) {
+ ERR_EXPLAIN("Can't open dynamic library: " + p_path + ". Error: " + dlerror());
+ ERR_FAIL_V(ERR_CANT_OPEN);
+ }
+ return OK;
+}
+
+Error OS_Unix::close_dynamic_library(void* p_library_handle) {
+ if(dlclose(p_library_handle)) {
+ return FAILED;
+ }
+ return OK;
+}
+
+Error OS_Unix::get_dynamic_library_symbol_handle(void* p_library_handle, const String p_name, void* &p_symbol_handle) {
+ char* error;
+ dlerror(); // Clear existing errors
+
+ p_symbol_handle = dlsym(p_library_handle, p_name.utf8().get_data());
+
+ if ((error = dlerror()) != NULL) {
+ ERR_EXPLAIN("Can't resolve symbol " + p_name + ". Error: " + dlerror());
+ ERR_FAIL_V(ERR_CANT_RESOLVE);
+ }
+ return OK;
+}
+
Error OS_Unix::set_cwd(const String &p_cwd) {
if (chdir(p_cwd.utf8().get_data()) != 0)
diff --git a/drivers/unix/os_unix.h b/drivers/unix/os_unix.h
index 3ac4f46109..771421ec35 100644
--- a/drivers/unix/os_unix.h
+++ b/drivers/unix/os_unix.h
@@ -82,6 +82,10 @@ public:
//virtual VideoMode get_video_mode() const;
//virtual void get_fullscreen_mode_list(List<VideoMode> *p_list) const;
+ virtual Error open_dynamic_library(const String p_path, void* &p_library_handle);
+ virtual Error close_dynamic_library(void* p_library_handle);
+ virtual Error get_dynamic_library_symbol_handle(void* p_library_handle, const String p_name, void* &p_symbol_handle);
+
virtual Error set_cwd(const String &p_cwd);
virtual String get_name();
diff --git a/platform/windows/os_windows.cpp b/platform/windows/os_windows.cpp
index f1a9ba5598..75dc2ef696 100644
--- a/platform/windows/os_windows.cpp
+++ b/platform/windows/os_windows.cpp
@@ -1582,6 +1582,32 @@ bool OS_Windows::get_borderless_window() {
return video_mode.borderless_window;
}
+Error open_dynamic_library(const String p_path, void* &p_library_handle) {
+ p_library_handle = (void *) LoadLibrary(p_path.utf8().get_data());
+ if (!p_library_handle) {
+ ERR_EXPLAIN("Can't open dynamic library: " + p_path + ". Error: " + String::num(GetLastError()));
+ ERR_FAIL_V(ERR_CANT_OPEN);
+ }
+ return OK;
+}
+
+Error close_dynamic_library(void* p_library_handle) {
+ if (!FreeLibrary((HMODULE) p_library_handle)) {
+ return FAILED;
+ }
+ return OK;
+}
+
+Error get_dynamic_library_symbol_handle(void* p_library_handle, const String p_name, void* &p_symbol_handle) {
+ char *error;
+ p_symbol_handle = (void *) GetProcAddress((HMODULE) p_library_handle, p_name.utf8().get_data());
+ if (!p_symbol_handle) {
+ ERR_EXPLAIN("Can't resolve symbol " + p_name + ". Error: " + String::num(GetLastError()));
+ ERR_FAIL_V(ERR_CANT_RESOLVE);
+ }
+ return OK;
+}
+
void OS_Windows::request_attention() {
FLASHWINFO info;
diff --git a/platform/windows/os_windows.h b/platform/windows/os_windows.h
index 25c3102ee6..ed197b7685 100644
--- a/platform/windows/os_windows.h
+++ b/platform/windows/os_windows.h
@@ -222,6 +222,10 @@ public:
virtual void set_borderless_window(int p_borderless);
virtual bool get_borderless_window();
+ virtual Error open_dynamic_library(const String p_path, void* &p_library_handle);
+ virtual Error close_dynamic_library(void* p_library_handle);
+ virtual Error get_dynamic_library_symbol_handle(void* p_library_handle, const String p_name, void* &p_symbol_handle);
+
virtual MainLoop *get_main_loop() const;
virtual String get_name();