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author ImJezze <jezze@gmx.net>2016-02-21 11:48:45 +0100
committer ImJezze <jezze@gmx.net>2016-02-21 11:48:45 +0100
commitcc24a339d8c0517259084b5c178d784626ba965c (patch)
tree9868e9687b5802ae0a3733712a3bbeb3bc75c953 /3rdparty/libuv/src/win/dl.c
parentb5daabda5495dea5c50e17961ecfed2ea8619d76 (diff)
Merge remote-tracking branch 'refs/remotes/mamedev/master'
Second attempt
Diffstat (limited to '3rdparty/libuv/src/win/dl.c')
-rw-r--r--3rdparty/libuv/src/win/dl.c113
1 files changed, 113 insertions, 0 deletions
diff --git a/3rdparty/libuv/src/win/dl.c b/3rdparty/libuv/src/win/dl.c
new file mode 100644
index 00000000000..e5f3407f8eb
--- /dev/null
+++ b/3rdparty/libuv/src/win/dl.c
@@ -0,0 +1,113 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+static int uv__dlerror(uv_lib_t* lib, int errorno);
+
+
+int uv_dlopen(const char* filename, uv_lib_t* lib) {
+ WCHAR filename_w[32768];
+
+ lib->handle = NULL;
+ lib->errmsg = NULL;
+
+ if (!uv_utf8_to_utf16(filename, filename_w, ARRAY_SIZE(filename_w))) {
+ return uv__dlerror(lib, GetLastError());
+ }
+
+ lib->handle = LoadLibraryExW(filename_w, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
+ if (lib->handle == NULL) {
+ return uv__dlerror(lib, GetLastError());
+ }
+
+ return 0;
+}
+
+
+void uv_dlclose(uv_lib_t* lib) {
+ if (lib->errmsg) {
+ LocalFree((void*)lib->errmsg);
+ lib->errmsg = NULL;
+ }
+
+ if (lib->handle) {
+ /* Ignore errors. No good way to signal them without leaking memory. */
+ FreeLibrary(lib->handle);
+ lib->handle = NULL;
+ }
+}
+
+
+int uv_dlsym(uv_lib_t* lib, const char* name, void** ptr) {
+ *ptr = (void*) GetProcAddress(lib->handle, name);
+ return uv__dlerror(lib, *ptr ? 0 : GetLastError());
+}
+
+
+const char* uv_dlerror(const uv_lib_t* lib) {
+ return lib->errmsg ? lib->errmsg : "no error";
+}
+
+
+static void uv__format_fallback_error(uv_lib_t* lib, int errorno){
+ DWORD_PTR args[1] = { (DWORD_PTR) errorno };
+ LPSTR fallback_error = "error: %1!d!";
+
+ FormatMessageA(FORMAT_MESSAGE_FROM_STRING |
+ FORMAT_MESSAGE_ARGUMENT_ARRAY |
+ FORMAT_MESSAGE_ALLOCATE_BUFFER,
+ fallback_error, 0, 0,
+ (LPSTR) &lib->errmsg,
+ 0, (va_list*) args);
+}
+
+
+
+static int uv__dlerror(uv_lib_t* lib, int errorno) {
+ DWORD res;
+
+ if (lib->errmsg) {
+ LocalFree((void*)lib->errmsg);
+ lib->errmsg = NULL;
+ }
+
+ if (errorno) {
+ res = FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+ FORMAT_MESSAGE_FROM_SYSTEM |
+ FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errorno,
+ MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US),
+ (LPSTR) &lib->errmsg, 0, NULL);
+ if (!res && GetLastError() == ERROR_MUI_FILE_NOT_FOUND) {
+ res = FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+ FORMAT_MESSAGE_FROM_SYSTEM |
+ FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errorno,
+ 0, (LPSTR) &lib->errmsg, 0, NULL);
+ }
+
+ if (!res) {
+ uv__format_fallback_error(lib, errorno);
+ }
+ }
+
+ return errorno ? -1 : 0;
+}