mirror of
https://git.libssh.org/projects/libssh.git
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83b43443e5
This makes unnecessary to call ssh_init() when the library is dynamically loaded. Also removes the threads shared library. The used threads implementation is chosen in configuration time, changing the ssh_threads_get_default() depending on the available threads library. Internally, it is expected a threads implementation providing: - void ssh_mutex_lock(void **mutex); - void ssh_mutex_unlock(void **mutex); - struct ssh_threads_callbacks_struct *ssh_threads_get_default(void); and a crypto implementation providing: - int crypto_thread_init(struct ssh_threads_callbacks_struct *user_callbacks); - void crypto_thread_finalize(void); This adds internal threads implementation for pthreads and noop. Signed-off-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com> Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
141 lines
3.0 KiB
C
141 lines
3.0 KiB
C
/*
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* This file is part of the SSH Library
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*
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* Copyright (c) 2010 by Aris Adamantiadis
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*
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* The SSH Library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at your
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* option) any later version.
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*
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* The SSH Library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with the SSH Library; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "libssh/threads.h"
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#include <libssh/callbacks.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <pthread.h>
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static int ssh_pthread_mutex_init (void **mutex)
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{
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int rc = 0;
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if (mutex == NULL) {
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return EINVAL;
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}
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*mutex = malloc(sizeof(pthread_mutex_t));
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if (*mutex == NULL) {
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return ENOMEM;
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}
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rc = pthread_mutex_init ((pthread_mutex_t *)*mutex, NULL);
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if (rc){
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free (*mutex);
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*mutex = NULL;
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}
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return rc;
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}
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static int ssh_pthread_mutex_destroy (void **mutex)
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{
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int rc = 0;
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if (mutex == NULL) {
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return EINVAL;
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}
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rc = pthread_mutex_destroy ((pthread_mutex_t *)*mutex);
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free (*mutex);
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*mutex = NULL;
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return rc;
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}
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static int ssh_pthread_mutex_lock (void **mutex)
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{
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return pthread_mutex_lock((pthread_mutex_t *)*mutex);
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}
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static int ssh_pthread_mutex_unlock (void **mutex)
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{
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return pthread_mutex_unlock((pthread_mutex_t *)*mutex);
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}
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static unsigned long ssh_pthread_thread_id (void)
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{
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#if defined(_WIN32) && !defined(__WINPTHREADS_VERSION)
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return (unsigned long) pthread_self().p;
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#else
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return (unsigned long) pthread_self();
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#endif
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}
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static struct ssh_threads_callbacks_struct ssh_threads_pthread =
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{
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.type = "threads_pthread",
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.mutex_init = ssh_pthread_mutex_init,
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.mutex_destroy = ssh_pthread_mutex_destroy,
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.mutex_lock = ssh_pthread_mutex_lock,
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.mutex_unlock = ssh_pthread_mutex_unlock,
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.thread_id = ssh_pthread_thread_id
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};
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/* Threads interface implementation */
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#if (HAVE_PTHREAD)
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void ssh_mutex_lock(SSH_MUTEX *mutex)
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{
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int rc;
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if (mutex == NULL) {
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exit(EINVAL);
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}
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rc = pthread_mutex_lock(mutex);
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if (rc) {
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exit(rc);
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}
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}
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void ssh_mutex_unlock(SSH_MUTEX *mutex)
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{
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int rc;
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if (mutex == NULL) {
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exit(EINVAL);
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}
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rc = pthread_mutex_unlock(mutex);
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if (rc) {
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exit(rc);
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}
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}
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struct ssh_threads_callbacks_struct *ssh_threads_get_default(void)
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{
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return &ssh_threads_pthread;
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}
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#endif
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struct ssh_threads_callbacks_struct *ssh_threads_get_pthread(void)
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{
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return &ssh_threads_pthread;
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}
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