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egg: Accomodate thread-safe libgcrypt 1.6+

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libcrypt no longer supports setting our own threading callbacks,
and is thread-safe if we call gcry_check_version() before creating
threads.

Unfortunately we can't guarantee that we call gcry_check_version()
early enough, we try our best. Most of the callers of libsecret either
don't use libgcrypt, or also initialize it appropriately themselves.

Bump libgcrypt dependency to 1.4.5+, and have earlier versions use
the native pthread implementation of locking.
This commit is contained in:
Stef Walter 2014-09-09 15:11:00 +02:00
parent c91de25db1
commit 5e2fe4afaa
1 changed files with 8 additions and 37 deletions
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45
egg/egg-libgcrypt.c
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@ -30,6 +30,8 @@
#include <gcrypt.h>
#include <errno.h>
EGG_SECURE_DECLARE (libgcrypt);
static void
@ -55,42 +57,9 @@ fatal_handler (gpointer unused, int unknown, const gchar *msg)
g_log ("gcrypt", G_LOG_LEVEL_ERROR, "%s", msg);
}
static int
glib_thread_mutex_init (void **lock)
{
*lock = g_slice_new (GMutex);
g_mutex_init (*lock);
return 0;
}
static int
glib_thread_mutex_destroy (void **lock)
{
g_mutex_clear (*lock);
g_slice_free (GMutex, *lock);
return 0;
}
static int
glib_thread_mutex_lock (void **lock)
{
g_mutex_lock (*lock);
return 0;
}
static int
glib_thread_mutex_unlock (void **lock)
{
g_mutex_unlock (*lock);
return 0;
}
static struct gcry_thread_cbs glib_thread_cbs = {
GCRY_THREAD_OPTION_USER, NULL,
glib_thread_mutex_init, glib_thread_mutex_destroy,
glib_thread_mutex_lock, glib_thread_mutex_unlock,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
};
#if GCRYPT_VERSION_NUMBER < 0x010600
GCRY_THREAD_OPTION_PTHREAD_IMPL;
#endif
void
egg_libgcrypt_initialize (void)
@ -102,7 +71,9 @@ egg_libgcrypt_initialize (void)
/* Only initialize libgcrypt if it hasn't already been initialized */
if (!gcry_control (GCRYCTL_INITIALIZATION_FINISHED_P)) {
gcry_control (GCRYCTL_SET_THREAD_CBS, &glib_thread_cbs);
#if GCRYPT_VERSION_NUMBER < 0x010600
gcry_control (GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread);
#endif
gcry_check_version (LIBGCRYPT_VERSION);
gcry_set_log_handler (log_handler, NULL);
gcry_set_outofcore_handler (no_mem_handler, NULL);