gpgme/src/ath.h
Andre Heinecke 09b6455432 core: Use gpgrt locking for thread safeness
* configure.ac: Require libgpg-error 1.17. No longer
check for pthread.
* doc/gpgme.texi: Document removed neccessity for thread
safe gpgme flavours.
* src/sema.h (DEFINE_GLOBAL_LOCK),
(DEFINE_STATIC_LOCK, INIT_LOCK, DECLARE_LOCK)
(DESTROY_LOCK, LOCK, UNLOCK): Change to gpgrt equivalents.
* src/posix-sema.c, src/w32-sema.c: Removed.
* src/Makefile.am: Remove libpthread and
Update accordingly.
* src/ath.c, src/ath.h (ath_mutex_init)
(ath_mutex_destroy, ath_mutex_lock, ath_mutex_unlock): Removed.
* src/ath.h (ATH_MUTEX_INITIALIZER): Removed.
* src/version.c (do_subsystem_inits): sema_subsystem_init is
no longer required.
* tests/gpg/Makefile.am: Add new threading tests.
(t_thread1_LDADD, t_cancel_LDADD):
Use just gpgme.
* tests/gpg/t-thread-keylist-verify.c,
tests/gpg/t-thread-keylist.c: New.
* src/gpgme-config.in: Use -lgpgme for thread-model pthread.

--
Using gpgrt locks instead of pthread locks removes
the neccessity to link pthread directly to gpgme and
have a different, thread safe flavor of gpgme. Now
gpgme is thread-safe if the conditions mentioned
in the doc are met.

As the cpp bindings linked against libgpgme
and not libgpgme-pthread this fixes threading problems
with them.

libgpgme-pthread is removed but gpgme-config still supports
--thread=pthread for compatibility with find scripts.
2016-11-10 13:33:13 +01:00

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/* ath.h - Interfaces for 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. */
#ifndef ATH_H
#define ATH_H
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#ifdef HAVE_W32_SYSTEM
/* fixme: Check how we did it in libgcrypt. */
struct msghdr { int dummy; };
typedef int socklen_t;
# if defined(HAVE_W32CE_SYSTEM) && defined(_MSC_VER)
# include <winsock2.h>
# endif
# include <windows.h>
# include <io.h>
#else /*!HAVE_W32_SYSTEM*/
# ifdef HAVE_SYS_SELECT_H
# include <sys/select.h>
# else
# ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
# endif
# endif
# ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
# endif
# include <sys/socket.h>
#endif /*!HAVE_W32_SYSTEM*/
/* Define _ATH_EXT_SYM_PREFIX if you want to give all external symbols
a prefix. */
#define _ATH_EXT_SYM_PREFIX _gpgme_
#ifdef _ATH_EXT_SYM_PREFIX
#define _ATH_PREFIX1(x,y) x ## y
#define _ATH_PREFIX2(x,y) _ATH_PREFIX1(x,y)
#define _ATH_PREFIX(x) _ATH_PREFIX2(_ATH_EXT_SYM_PREFIX,x)
#define ath_read _ATH_PREFIX(ath_read)
#define ath_write _ATH_PREFIX(ath_write)
#define ath_select _ATH_PREFIX(ath_select)
#define ath_waitpid _ATH_PREFIX(ath_waitpid)
#define ath_connect _ATH_PREFIX(ath_connect)
#define ath_accept _ATH_PREFIX(ath_accept)
#define ath_sendmsg _ATH_PREFIX(ath_sendmsg)
#define ath_recvmsg _ATH_PREFIX(ath_recvmsg)
#endif
uintptr_t ath_self (void);
/* Replacement for the POSIX functions, which can be used to allow
other (user-level) threads to run. */
gpgme_ssize_t ath_read (int fd, void *buf, size_t nbytes);
gpgme_ssize_t ath_write (int fd, const void *buf, size_t nbytes);
gpgme_ssize_t ath_select (int nfd, fd_set *rset, fd_set *wset, fd_set *eset,
struct timeval *timeout);
gpgme_ssize_t ath_waitpid (pid_t pid, int *status, int options);
int ath_accept (int s, struct sockaddr *addr, socklen_t *length_ptr);
int ath_connect (int s, const struct sockaddr *addr, socklen_t length);
int ath_sendmsg (int s, const struct msghdr *msg, int flags);
int ath_recvmsg (int s, struct msghdr *msg, int flags);
#endif /* ATH_H */