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Added mg_load_dll()

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This commit is contained in:
Sergey Lyubka 2014-03-20 15:01:05 +00:00
parent c658a54d18
commit ace8c1736c
2 changed files with 47 additions and 3 deletions
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44
mongoose.c
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@ -1009,6 +1009,7 @@ typedef struct _stati64 file_stat_t;
typedef HANDLE pid_t;
#else ////////////// UNIX specific defines and includes
#include <dirent.h>
#include <dlfcn.h>
#include <inttypes.h>
#include <pwd.h>
#define O_BINARY 0
@ -1251,8 +1252,7 @@ void *mg_start_thread(void *(*f)(void *), void *p) {
}
#endif // MONGOOSE_NO_THREADS
#ifdef _WIN32
#ifndef MONGOOSE_NO_FILESYSTEM
#if defined(_WIN32) && !defined(MONGOOSE_NO_FILESYSTEM)
// Encode 'path' which is assumed UTF-8 string, into UNICODE string.
// wbuf and wbuf_len is a target buffer and its length.
static void to_wchar(const char *path, wchar_t *wbuf, size_t wbuf_len) {
@ -1295,8 +1295,46 @@ static int mg_open(const char *path, int flag) {
to_wchar(path, wpath, ARRAY_SIZE(wpath));
return _wopen(wpath, flag);
}
#endif // _WIN32 && !MONGOOSE_NO_FILESYSTEM
#ifndef MONGOOSE_NO_DL
void *mg_open_dll(const char *dll_name) {
#ifdef _WIN32
wchar_t wbuf[MAX_PATH_SIZE];
to_wchar(dll_name, wbuf, ARRAY_SIZE(wbuf));
return LoadLibraryW(wbuf);
#else
return dlopen(dll_name, RTLD_LAZY);
#endif
}
void *mg_find_dll_sym(void *dll_handle, const char *name) {
#ifdef _WIN32
return GetProcAddress((HINSTANCE) dll_handle, name);
#else
return dlsym(dll_handle, name);
#endif
}
const char *mg_load_dll(const char *dll_name, struct mg_dll_symbol *syms) {
void *dll_handle;
int i;
if ((dll_handle = mg_open_dll(dll_name)) == NULL) {
return dll_name;
} else {
for (i = 0; syms != NULL && syms[i].symbol_name != NULL; i++) {
syms[i].symbol_address.ptr = mg_find_dll_sym(dll_handle,
syms[i].symbol_name);
if (syms[i].symbol_address.ptr == NULL) {
return syms[i].symbol_name;
}
}
}
return NULL;
}
#endif
#endif // MONGOOSE_NO_FILESYSTEM
// A helper function for traversing a comma separated list of values.
// It returns a list pointer shifted to the next value, or NULL if the end

6
mongoose.h
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@ -112,6 +112,12 @@ void *mg_start_thread(void *(*func)(void *), void *param);
char *mg_md5(char buf[33], ...);
int mg_authorize_digest(struct mg_connection *c, FILE *fp);
struct mg_dll_symbol {
const char *symbol_name;
union { void *ptr; void (*func_ptr)(void); } symbol_address;
};
const char *mg_load_dll(const char *dll_path, struct mg_dll_symbol *symbols);
// Lua utility functions
#ifdef MONGOOSE_USE_LUA
#include <lua.h>