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Diffstat (limited to '')
| -rw-r--r-- | gpgme/ath.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/gpgme/ath.h b/gpgme/ath.h new file mode 100644 index 00000000..c0a8e206 --- /dev/null +++ b/gpgme/ath.h @@ -0,0 +1,93 @@ +/* ath.h - interfaces for self-adapting thread-safeness library + * Copyright (C) 2002 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 General Public License as published by + * the Free Software Foundation; either version 2 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 General Public License for more details. + * + * You should have received a copy of the GNU 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 + +#include <sys/types.h> + +/* 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_pkg_init MUTEX_EXT_SYM_PREFIX##ath_pkg_init +#define ath_mutex_init MUTEX_EXT_SYM_PREFIX##ath_mutex_init +#define ath_mutex_destroy MUTEX_EXT_SYM_PREFIX##ath_mutex_destroy +#define ath_mutex_lock MUTEX_EXT_SYM_PREFIX##ath_mutex_lock +#define ath_mutex_pthread_available \ + MUTEX_EXT_SYM_PREFIX##ath_mutex_pthread_available +#define ath_mutex_pth_available \ + MUTEX_EXT_SYM_PREFIX##ath_mutex_pth_available +#define ath_mutex_dummy_available \ + MUTEX_EXT_SYM_PREFIX##ath_mutex_dummy_available +#define ath_read MUTEX_EXT_SYM##ath_read +#define ath_write MUTEX_EXT_SYM##ath_write +#define ath_select MUTEX_EXT_SYM##ath_select +#define ath_waitpid MUTEX_EXT_SYM##ath_waitpid +#define ath_mutex_pthread_available \ + MUTEX_EXT_SYM_PREFIX##ath_mutex_pthread_available +#define ath_mutex_pthr_available \ + MUTEX_EXT_SYM_PREFIX##ath_mutex_pthr_available +#define ath_mutex_dummy_available \ + MUTEX_EXT_SYM_PREFIX##ath_mutex_dummy_available +#endif + + +typedef void *ath_mutex_t; +#define ATH_MUTEX_INITIALIZER 0; + +/* Functions for mutual exclusion. */ +int ath_mutex_init (ath_mutex_t *mutex); +int ath_mutex_destroy (ath_mutex_t *mutex); +int ath_mutex_lock (ath_mutex_t *mutex); +int ath_mutex_unlock (ath_mutex_t *mutex); + +/* Replacement for the POSIX functions, which can be used to allow + other (user-level) threads to run. */ +ssize_t ath_read (int fd, void *buf, size_t nbytes); +ssize_t ath_write (int fd, const void *buf, size_t nbytes); +ssize_t ath_select (int nfd, fd_set *rset, fd_set *wset, fd_set *eset, + struct timeval *timeout); +ssize_t ath_waitpid (pid_t pid, int *status, int options); + + +struct ath_ops +{ + int (*mutex_init) (void **priv, int just_check); + int (*mutex_destroy) (void *priv); + int (*mutex_lock) (void *priv); + int (*mutex_unlock) (void *priv); + ssize_t (*read) (int fd, void *buf, size_t nbytes); + ssize_t (*write) (int fd, const void *buf, size_t nbytes); + ssize_t (*select) (int nfd, fd_set *rset, fd_set *wset, fd_set *eset, + struct timeval *timeout); + ssize_t (*waitpid) (pid_t pid, int *status, int options); +}; + +/* Initialize the any-thread package. */ +void ath_init (void); + +/* Used by ath_pkg_init. */ +struct ath_ops *ath_pthread_available (void); +struct ath_ops *ath_pth_available (void); +struct ath_ops *ath_dummy_available (void); + +#endif /* ATH_H */ |