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-rw-r--r--src/ath-pthread.c186
1 files changed, 186 insertions, 0 deletions
diff --git a/src/ath-pthread.c b/src/ath-pthread.c
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index 0000000..9684afb
--- /dev/null
+++ b/src/ath-pthread.c
@@ -0,0 +1,186 @@
+/* ath-pthread.c - pthread module for self-adapting thread-safeness library
+ Copyright (C) 2002, 2003, 2004 g10 Code GmbH
+
+ This file is part of GPGME.
+
+ GPGME 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.
+
+ GPGME 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 this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ 02111-1307, USA. */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <errno.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#ifdef HAVE_SYS_SELECT_H
+# include <sys/select.h>
+#else
+# ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+# endif
+#endif
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <pthread.h>
+
+#include "ath.h"
+
+
+/* The lock we take while checking for lazy lock initialization. */
+static pthread_mutex_t check_init_lock = PTHREAD_MUTEX_INITIALIZER;
+
+/* Initialize the mutex *PRIV. If JUST_CHECK is true, only do this if
+ it is not already initialized. */
+static int
+mutex_pthread_init (ath_mutex_t *priv, int just_check)
+{
+ int err = 0;
+
+ if (just_check)
+ pthread_mutex_lock (&check_init_lock);
+ if (!*priv || !just_check)
+ {
+ 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 = (ath_mutex_t) lock;
+ }
+ }
+ if (just_check)
+ pthread_mutex_unlock (&check_init_lock);
+ return err;
+}
+
+
+void
+ath_init (void)
+{
+ /* Nothing to do. */
+}
+
+
+uintptr_t
+ath_self (void)
+{
+ return (uintptr_t) pthread_self ();
+}
+
+
+int
+ath_mutex_init (ath_mutex_t *lock)
+{
+ return mutex_pthread_init (lock, 0);
+}
+
+
+int
+ath_mutex_destroy (ath_mutex_t *lock)
+{
+ int err = mutex_pthread_init (lock, 1);
+ if (!err)
+ {
+ err = pthread_mutex_destroy ((pthread_mutex_t *) *lock);
+ free (*lock);
+ }
+ return err;
+}
+
+
+int
+ath_mutex_lock (ath_mutex_t *lock)
+{
+ int ret = mutex_pthread_init (lock, 1);
+ if (ret)
+ return ret;
+
+ return pthread_mutex_lock ((pthread_mutex_t *) *lock);
+}
+
+
+int
+ath_mutex_unlock (ath_mutex_t *lock)
+{
+ int ret = mutex_pthread_init (lock, 1);
+ if (ret)
+ return ret;
+
+ return pthread_mutex_unlock ((pthread_mutex_t *) *lock);
+}
+
+
+ssize_t
+ath_read (int fd, void *buf, size_t nbytes)
+{
+ return read (fd, buf, nbytes);
+}
+
+
+ssize_t
+ath_write (int fd, const void *buf, size_t nbytes)
+{
+ return write (fd, buf, nbytes);
+}
+
+
+ssize_t
+ath_select (int nfd, fd_set *rset, fd_set *wset, fd_set *eset,
+ struct timeval *timeout)
+{
+ return select (nfd, rset, wset, eset, timeout);
+}
+
+
+ssize_t
+ath_waitpid (pid_t pid, int *status, int options)
+{
+ return waitpid (pid, status, options);
+}
+
+
+int
+ath_accept (int s, struct sockaddr *addr, socklen_t *length_ptr)
+{
+ return accept (s, addr, length_ptr);
+}
+
+
+int
+ath_connect (int s, const struct sockaddr *addr, socklen_t length)
+{
+ return connect (s, addr, length);
+}
+
+int
+ath_sendmsg (int s, const struct msghdr *msg, int flags)
+{
+ return sendmsg (s, msg, flags);
+}
+
+
+int
+ath_recvmsg (int s, struct msghdr *msg, int flags)
+{
+ return recvmsg (s, msg, flags);
+}