5e69581a43
* ath.h: Update list of symbols that get a prefix: Rename the ath_mutex_*_available symbols to ath_*_available.
88 lines
3.0 KiB
C
88 lines
3.0 KiB
C
/* ath.h - interfaces for self-adapting thread-safeness library
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* Copyright (C) 2002 g10 Code GmbH
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*
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* This file is part of GPGME.
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*
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* GPGME is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GPGME is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifndef ATH_H
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#define ATH_H
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#include <sys/types.h>
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/* Define ATH_EXT_SYM_PREFIX if you want to give all external symbols
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a prefix. */
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#define ATH_EXT_SYM_PREFIX _gpgme_
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#ifdef ATH_EXT_SYM_PREFIX
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#define ATH_PREFIX1(x,y) x ## y
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#define ATH_PREFIX2(x,y) ATH_PREFIX1(x,y)
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#define ATH_PREFIX(x) ATH_PREFIX2(ATH_EXT_SYM_PREFIX,x)
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#define ath_init ATH_PREFIX(ath_init)
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#define ath_mutex_init ATH_PREFIX(ath_mutex_init)
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#define ath_mutex_destroy ATH_PREFIX(ath_mutex_destroy)
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#define ath_mutex_lock ATH_PREFIX(ath_mutex_lock)
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#define ath_mutex_unlock ATH_PREFIX(ath_mutex_unlock)
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#define ath_read ATH_PREFIX(ath_read)
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#define ath_write ATH_PREFIX(ath_write)
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#define ath_select ATH_PREFIX(ath_select)
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#define ath_waitpid ATH_PREFIX(ath_waitpid)
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#define ath_pthread_available ATH_PREFIX(ath_pthread_available)
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#define ath_pth_available ATH_PREFIX(ath_pth_available)
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#endif
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typedef void *ath_mutex_t;
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#define ATH_MUTEX_INITIALIZER 0;
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/* Functions for mutual exclusion. */
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int ath_mutex_init (ath_mutex_t *mutex);
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int ath_mutex_destroy (ath_mutex_t *mutex);
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int ath_mutex_lock (ath_mutex_t *mutex);
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int ath_mutex_unlock (ath_mutex_t *mutex);
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/* Replacement for the POSIX functions, which can be used to allow
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other (user-level) threads to run. */
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ssize_t ath_read (int fd, void *buf, size_t nbytes);
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ssize_t ath_write (int fd, const void *buf, size_t nbytes);
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ssize_t ath_select (int nfd, fd_set *rset, fd_set *wset, fd_set *eset,
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struct timeval *timeout);
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ssize_t ath_waitpid (pid_t pid, int *status, int options);
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struct ath_ops
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{
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int (*mutex_init) (void **priv, int just_check);
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int (*mutex_destroy) (void *priv);
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int (*mutex_lock) (void *priv);
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int (*mutex_unlock) (void *priv);
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ssize_t (*read) (int fd, void *buf, size_t nbytes);
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ssize_t (*write) (int fd, const void *buf, size_t nbytes);
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ssize_t (*select) (int nfd, fd_set *rset, fd_set *wset, fd_set *eset,
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struct timeval *timeout);
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ssize_t (*waitpid) (pid_t pid, int *status, int options);
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};
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/* Initialize the any-thread package. */
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void ath_init (void);
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/* Used by ath_pkg_init. */
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struct ath_ops *ath_pthread_available (void);
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struct ath_ops *ath_pth_available (void);
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struct ath_ops *ath_dummy_available (void);
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#endif /* ATH_H */
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