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Format dlopen.c

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interfiberschool 2023-05-25 11:54:12 -04:00 committed by GitHub
parent 9181d91988
commit 4ec4a0ecf5
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1 changed files with 52 additions and 50 deletions
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102
src/dlopen.c
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@ -1,91 +1,93 @@
#include "dlopen.h"
#include <stdlib.h>
struct hotwire_dll_t hw_dlopen(const char *file, int flags) {
struct hotwire_dll_t hw_dlopen(const char* file, int flags)
{
struct hotwire_dll_t dll;
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);
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());
if (dll.dll_handle == NULL) {
printf("Could not load dll(UNIX api call returned error)\n");
printf("Error message: %s\n", dlerror());
exit(-1);
}
exit(-1);
}
#endif
// Windows specific code
#if defined(_WIN32)
dll.dll_handle = LoadLibrary(file);
dll.dll_handle = LoadLibrary(file);
if (!dll.dll_handle) {
printf("Could not load dll(Windows api call returned error)\n");
hw_platform_win32_get_last_error(TEXT("LoadLibrary"));
exit(-1);
}
if (!dll.dll_handle) {
printf("Could not load dll(Windows api call returned error)\n");
hw_platform_win32_get_last_error(TEXT("LoadLibrary"));
exit(-1);
}
#endif
return dll;
return dll;
}
void *hw_dlsym(struct hotwire_dll_t dll, const char *symbol) {
void* hw_dlsym(struct hotwire_dll_t dll, const char* symbol)
{
#if defined(_WIN32)
return GetProcAddress(dll.dll_handle, symbol);
return GetProcAddress(dll.dll_handle, symbol);
#endif
#if defined(__linux) || defined(__APPLE__)
return dlsym(dll.dll_handle, symbol);
return dlsym(dll.dll_handle, symbol);
#endif
}
enum hotwire_status_code hw_dlclose(struct hotwire_dll_t handle) {
enum hotwire_status_code hw_dlclose(struct hotwire_dll_t handle)
{
#if defined(__linux) || defined(__APPLE__)
if (dlclose(handle.dll_handle) != 0) {
return Failed;
} else {
return Success;
}
if (dlclose(handle.dll_handle) != 0) {
return Failed;
}
else {
return Success;
}
#endif
#if defined(__WIN32)
if (FreeLibrary(handle.dll_handle)) {
return Success;
} else {
return Failed;
}
if (FreeLibrary(handle.dll_handle)) {
return Success;
}
else {
return Failed;
}
#endif
return NoPlatform;
return NoPlatform;
}
#if defined(_WIN32)
void hw_platform_win32_get_last_error(LPTSTR lpszFunction) {
LPVOID lpMsgBuf;
LPVOID lpDisplayBuf;
DWORD dw = GetLastError();
void hw_platform_win32_get_last_error(LPTSTR lpszFunction)
{
LPVOID lpMsgBuf;
LPVOID lpDisplayBuf;
DWORD dw = GetLastError();
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, dw, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&lpMsgBuf, 0, NULL);
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, dw, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&lpMsgBuf, 0, NULL);
// Display the error message and exit the process
// Display the error message and exit the process
lpDisplayBuf =
(LPVOID)LocalAlloc(LMEM_ZEROINIT, (lstrlen((LPCTSTR)lpMsgBuf) +
lstrlen((LPCTSTR)lpszFunction) + 40) *
sizeof(TCHAR));
StringCchPrintf((LPTSTR)lpDisplayBuf, LocalSize(lpDisplayBuf) / sizeof(TCHAR),
TEXT("%s failed with error %d: %s"), lpszFunction, dw,
lpMsgBuf);
lpDisplayBuf = (LPVOID)LocalAlloc(LMEM_ZEROINIT, (lstrlen((LPCTSTR)lpMsgBuf) + lstrlen((LPCTSTR)lpszFunction) + 40) * sizeof(TCHAR));
StringCchPrintf((LPTSTR)lpDisplayBuf, LocalSize(lpDisplayBuf) / sizeof(TCHAR),
TEXT("%s failed with error %d: %s"), lpszFunction, dw,
lpMsgBuf);
printf("Error message: %s", (LPCTSTR)lpDisplayBuf);
printf("Error message: %s", (LPCTSTR)lpDisplayBuf);
LocalFree(lpMsgBuf);
LocalFree(lpDisplayBuf);
LocalFree(lpMsgBuf);
LocalFree(lpDisplayBuf);
}
#endif
#endif