init

src/dlopen.c

@@ -0,0 +1,32 @@
+#include "dlopen.h"
+#include <stdlib.h>
+
+struct hotwire_dll_t hw_dlopen(const char *file, int flags) {
+
+  struct hotwire_dll_t dll;
+
+// UNIX specific code(MacOS uses the same API as linux for dlopen)
+#if defined(__linux__) || defined(__APPLE__)
+  dll.dll_handle = dlopen(file, flags);
+
+  if (dll.dll_handle == NULL){
+    printf("could not load dll(UNIX api call returned error)\n");
+    printf("error message: %s\n", dlerror());
+
+    exit(-1);
+  }
+#endif
+
+// Windows specific code
+#if defined(_WIN32)
+  dll.dll_handle = LoadLibrary(file);
+
+  if (!dll.dll_handle){
+    printf("could not load dll(windows api call returned error)\n");
+    
+    exit(-1);
+  }
+#endif
+
+  return dll;
+}

src/dlopen.h

@@ -0,0 +1,37 @@
+#pragma once
+#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
+
+
+struct hotwire_dll_t {
+    #if defined(__linux__) || defined(__APPLE__)
+    void* dll_handle;
+    #endif
+
+    #if defined(_WIN32)
+    HINSTANCE dll_handle;
+    #endif
+};
+
+// Function arguments are based off the dlopen() api on POSIX based operating systems
+// Loads dll from library
+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);
+
+inline int hw_dlclose(void* handle);