diff options
| author | vvvv <[email protected]> | 2024-11-07 12:29:36 +0300 |
|---|---|---|
| committer | vvvv <[email protected]> | 2024-11-07 13:49:47 +0300 |
| commit | d4c258e9431675bab6745c8638df6e3dfd4dca6b (patch) | |
| tree | b5efcfa11351152a4c872fccaea35749141c0b11 /yql/essentials/parser/pg_wrapper/postgresql/src/port/win32dlopen.c | |
| parent | 13a4f274caef5cfdaf0263b24e4d6bdd5521472b (diff) | |
Moved other yql/essentials libs YQL-19206
init
commit_hash:7d4c435602078407bbf20dd3c32f9c90d2bbcbc0
Diffstat (limited to 'yql/essentials/parser/pg_wrapper/postgresql/src/port/win32dlopen.c')
| -rw-r--r-- | yql/essentials/parser/pg_wrapper/postgresql/src/port/win32dlopen.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/yql/essentials/parser/pg_wrapper/postgresql/src/port/win32dlopen.c b/yql/essentials/parser/pg_wrapper/postgresql/src/port/win32dlopen.c new file mode 100644 index 00000000000..da82c86fc54 --- /dev/null +++ b/yql/essentials/parser/pg_wrapper/postgresql/src/port/win32dlopen.c @@ -0,0 +1,93 @@ +/*------------------------------------------------------------------------- + * + * win32dlopen.c + * dynamic loader for Windows + * + * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * + * IDENTIFICATION + * src/port/win32dlopen.c + * + *------------------------------------------------------------------------- + */ + +#include "c.h" + +static char last_dyn_error[512]; + +static void +set_dl_error(void) +{ + DWORD err = GetLastError(); + + if (FormatMessage(FORMAT_MESSAGE_IGNORE_INSERTS | + FORMAT_MESSAGE_FROM_SYSTEM, + NULL, + err, + MAKELANGID(LANG_ENGLISH, SUBLANG_DEFAULT), + last_dyn_error, + sizeof(last_dyn_error) - 1, + NULL) == 0) + { + snprintf(last_dyn_error, sizeof(last_dyn_error) - 1, + "unknown error %lu", err); + } +} + +char * +dlerror(void) +{ + if (last_dyn_error[0]) + return last_dyn_error; + else + return NULL; +} + +int +dlclose(void *handle) +{ + if (!FreeLibrary((HMODULE) handle)) + { + set_dl_error(); + return 1; + } + last_dyn_error[0] = 0; + return 0; +} + +void * +dlsym(void *handle, const char *symbol) +{ + void *ptr; + + ptr = GetProcAddress((HMODULE) handle, symbol); + if (!ptr) + { + set_dl_error(); + return NULL; + } + last_dyn_error[0] = 0; + return ptr; +} + +void * +dlopen(const char *file, int mode) +{ + HMODULE h; + int prevmode; + + /* Disable popup error messages when loading DLLs */ + prevmode = SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX); + h = LoadLibrary(file); + SetErrorMode(prevmode); + + if (!h) + { + set_dl_error(); + return NULL; + } + last_dyn_error[0] = 0; + return (void *) h; +} |
