Register libgcrypt thread callbacks also on Windows

Libsoup must register thread callback functions for libgcrypt also on
Windows, otherwise libgcrypt will use its fallback dummy mutex
functions which don't do any real mutexing.

Approved in bug #600748.

diff --git a/libsoup/soup-gnutls.c b/libsoup/soup-gnutls.c
index 2e3fd20..821d8ab 100644 (file)
--- a/libsoup/soup-gnutls.c
+++ b/libsoup/soup-gnutls.c
@@ -497,6 +497,54 @@ soup_ssl_wrap_iochannel (GIOChannel *sock, gboolean non_blocking,
 GCRY_THREAD_OPTION_PTHREAD_IMPL;
 #endif
 
+#ifdef G_OS_WIN32
+
+static int
+soup_gcry_win32_mutex_init (void **priv)
+{
+       int err = 0;
+       CRITICAL_SECTION *lock = (CRITICAL_SECTION*)malloc (sizeof (CRITICAL_SECTION));
+
+       if (!lock)
+               err = ENOMEM;
+       if (!err) {
+               InitializeCriticalSection (lock);
+               *priv = lock;
+       }
+       return err;
+}
+
+static int
+soup_gcry_win32_mutex_destroy (void **lock)
+{
+       DeleteCriticalSection ((CRITICAL_SECTION*)*lock);
+       free (*lock);
+       return 0;
+}
+
+static int
+soup_gcry_win32_mutex_lock (void **lock)
+{
+       EnterCriticalSection ((CRITICAL_SECTION*)*lock);
+       return 0;
+}
+
+static int
+soup_gcry_win32_mutex_unlock (void **lock)
+{
+       LeaveCriticalSection ((CRITICAL_SECTION*)*lock);
+       return 0;
+}
+
+
+static struct gcry_thread_cbs soup_gcry_threads_win32 = {               \
+       (GCRY_THREAD_OPTION_USER | (GCRY_THREAD_OPTION_VERSION << 8)),   \
+       NULL, soup_gcry_win32_mutex_init, soup_gcry_win32_mutex_destroy, \
+       soup_gcry_win32_mutex_lock, soup_gcry_win32_mutex_unlock,        \
+       NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL };
+
+#endif
+
 static void
 soup_gnutls_init (void)
 {
@@ -505,6 +553,8 @@ soup_gnutls_init (void)
        if (g_once_init_enter (&inited_gnutls)) {
 #if defined(GCRY_THREAD_OPTION_PTHREAD_IMPL) && !defined(G_OS_WIN32)
                gcry_control (GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread);
+#elif defined(G_OS_WIN32)
+               gcry_control (GCRYCTL_SET_THREAD_CBS, &soup_gcry_threads_win32);
 #endif
                gnutls_global_init ();
                g_once_init_leave (&inited_gnutls, TRUE);