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-rw-r--r--libssh/threads.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/libssh/threads.c b/libssh/threads.c
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+++ b/libssh/threads.c
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+/*
+ * This file is part of the SSH Library
+ *
+ * Copyright (c) 2010 by Aris Adamantiadis
+ *
+ * The SSH Library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ *
+ * The SSH Library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the SSH Library; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/**
+ * @defgroup libssh_threads Threading with libssh
+ * @ingroup libssh
+ *
+ * Threading with libssh
+ * @{
+ */
+
+#include "libssh/priv.h"
+#include "libssh/threads.h"
+
+
+#ifdef HAVE_LIBGCRYPT
+#include <errno.h>
+#include <pthread.h>
+
+static int gcry_pthread_mutex_init (void **priv){
+ int err = 0;
+ pthread_mutex_t *lock = malloc (sizeof (pthread_mutex_t));
+
+ if (!lock)
+ err = ENOMEM;
+ if (!err)
+ {
+ err = pthread_mutex_init (lock, NULL);
+ if (err)
+ free (lock);
+ else
+ *priv = lock;
+ }
+ return err;
+}
+
+static int gcry_pthread_mutex_destroy (void **lock) {
+ int err = pthread_mutex_destroy ((pthread_mutex_t*)*lock);
+ free (*lock);
+ return err;
+}
+static int gcry_pthread_mutex_lock (void **lock) {
+ return pthread_mutex_lock ((pthread_mutex_t*)*lock);
+}
+static int gcry_pthread_mutex_unlock (void **lock){
+ return pthread_mutex_unlock ((pthread_mutex_t*)*lock);
+}
+
+
+static struct gcry_thread_cbs gcrypt_threads=
+{
+ .option=GCRY_THREAD_OPTION_VERSION << 8 || GCRY_THREAD_OPTION_PTHREAD,
+ .mutex_init=gcry_pthread_mutex_init,
+ .mutex_destroy=gcry_pthread_mutex_destroy,
+ .mutex_lock=gcry_pthread_mutex_lock,
+ .mutex_unlock=gcry_pthread_mutex_unlock
+};
+
+#endif
+
+static struct ssh_threads_callbacks_struct *user_callbacks;
+/** @internal
+ * @brief inits the threading with the backend cryptographic libraries
+ */
+
+int ssh_threads_init(void){
+#ifdef HAVE_LIBGCRYPT
+ gcry_control(GCRYCTL_SET_THREAD_CBS, &gcrypt_threads);
+#else
+
+
+#endif
+ return 0;
+}
+
+int ssh_init_set_threads_callbacks(struct ssh_threads_callbacks_struct *cb){
+ user_callbacks=cb;
+ return SSH_OK;
+}
+
+int ssh_init_set_threads_pthreads(void){
+ return SSH_OK;
+}
+/**
+ * @}
+ */