From 2281942fb3ac5889abc6e95df27a80e71fe32c0e Mon Sep 17 00:00:00 2001
From: Karroffel
Date: Wed, 8 Mar 2017 02:50:13 +0100
Subject: Added methods for opening dynamic libraries to OS

---
 drivers/unix/os_unix.cpp | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'drivers/unix/os_unix.cpp')

diff --git a/drivers/unix/os_unix.cpp b/drivers/unix/os_unix.cpp
index e2a544b67..999e20621 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)
-- 
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