crypto/dllmain.c

   1 /*
   2  * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include "e_os.h"
  11 #include "internal/cryptlib_int.h"
  12
  13 #if defined(_WIN32) || defined(__CYGWIN__)
  14 # ifdef __CYGWIN__
  15 /* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
  16 #  include <windows.h>
  17 /*
  18  * this has side-effect of _WIN32 getting defined, which otherwise is
  19  * mutually exclusive with __CYGWIN__...
  20  */
  21 # endif
  22
  23 /*
  24  * All we really need to do is remove the 'error' state when a thread
  25  * detaches
  26  */
  27
  28 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved);
  29 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
  30 {
  31     switch (fdwReason) {
  32     case DLL_PROCESS_ATTACH:
  33         OPENSSL_cpuid_setup();
  34         break;
  35     case DLL_THREAD_ATTACH:
  36         break;
  37     case DLL_THREAD_DETACH:
  38         OPENSSL_thread_stop();
  39         break;
  40     case DLL_PROCESS_DETACH:
  41         break;
  42     }
  43     return TRUE;
  44 }
  45 #endif
  46