dlsym

examples/unix/lib.c

@@ -1,5 +1,5 @@
 #include <stdio.h>
 
 void test(){
-    printf("testing 123\n");
+    printf("testing 123(unix)\n");
 }

examples/unix/main.c

@@ -1,6 +1,12 @@
 #include "../../src/dlopen.h"
 
+typedef void (*func_handle)();
+
 int main()
 {
     struct hotwire_dll_t dll = hw_dlopen("./bin/exampleUnixLib.dll", RTLD_NOW);
+
+    func_handle func = (func_handle)hw_dlsym(dll, "test");
+
+    func();
 }

examples/win/main.c

@@ -1,6 +1,12 @@
 #include "../../src/dlopen.h"
 
+typedef void (*func_handle)();
+
 int main()
 {
     struct hotwire_dll_t dll = hw_dlopen("./bin/exampleWinLib.dll", 0);
+
+    func_handle func = (func_handle)hw_dlsym(dll, "test");
+
+    func();
 }

src/dlopen.c

@@ -29,4 +29,14 @@ struct hotwire_dll_t hw_dlopen(const char *file, int flags) {
 #endif
 
   return dll;
+}
+
+void* hw_dlsym(struct hotwire_dll_t dll, const char* symbol){
+  #if defined(_WIN32)
+    return GetProcAddress(dll.dll_handle, symbol);
+  #endif
+
+  #if defined(__linux) || defined(__APPLE__)
+    return dlsym(dll.dll_handle, symbol);
+  #endif
 }

src/dlopen.h

@@ -2,17 +2,14 @@
 #include <stdio.h>
 
 #if defined(__APPLE__)
-#define HW_MODE 0
 #include <dlfcn.h>
 #endif
 
 #if defined(__linux__)
-#define HW_MODE 1
 #include <dlfcn.h>
 #endif
 
 #if defined(_WIN32)
-#define HW_MODE 2
 #include <windows.h>
 #endif
 
@@ -32,6 +29,6 @@ struct hotwire_dll_t {
 struct hotwire_dll_t hw_dlopen(const char* file, int flags);
 
 // Loads symbol from DLL
-inline void* hw_dlsym(struct hotwire_dll_t dll, const char *__restrict symbol);
+void* hw_dlsym(struct hotwire_dll_t dll, const char* symbol);
 
-inline int hw_dlclose(void* handle);
+int hw_dlclose(void* handle);