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Diffstat (limited to 'grub-core/lib/libgcrypt/src/ath.h')
| -rw-r--r-- | grub-core/lib/libgcrypt/src/ath.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/grub-core/lib/libgcrypt/src/ath.h b/grub-core/lib/libgcrypt/src/ath.h new file mode 100644 index 0000000..8769551 --- /dev/null +++ b/grub-core/lib/libgcrypt/src/ath.h @@ -0,0 +1,147 @@ +/* ath.h - Thread-safeness library. + Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. + + This file is part of Libgcrypt. + + Libgcrypt 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. + + Libgcrypt 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 Lesser General Public + License along with Libgcrypt; 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 <config.h> + +#ifdef _WIN32 +# include <windows.h> +#else /* !_WIN32 */ +# ifdef HAVE_SYS_SELECT_H +# include <sys/select.h> +# else +# include <sys/time.h> +# endif +# include <sys/types.h> +# ifdef HAVE_SYS_MSG_H +# include <sys/msg.h> /* (e.g. for zOS) */ +# endif +# include <sys/socket.h> +#endif /* !_WIN32 */ +#include <gpg-error.h> + + + +/* Define _ATH_EXT_SYM_PREFIX if you want to give all external symbols + a prefix. */ +#define _ATH_EXT_SYM_PREFIX _gcry_ + +#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_install _ATH_PREFIX(ath_install) +#define ath_init _ATH_PREFIX(ath_init) +#define ath_mutex_init _ATH_PREFIX(ath_mutex_init) +#define ath_mutex_destroy _ATH_PREFIX(ath_mutex_destroy) +#define ath_mutex_lock _ATH_PREFIX(ath_mutex_lock) +#define ath_mutex_unlock _ATH_PREFIX(ath_mutex_unlock) +#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 + + +enum ath_thread_option + { + ATH_THREAD_OPTION_DEFAULT = 0, + ATH_THREAD_OPTION_USER = 1, + ATH_THREAD_OPTION_PTH = 2, + ATH_THREAD_OPTION_PTHREAD = 3 + }; + +struct ath_ops +{ + /* The OPTION field encodes the thread model and the version number + of this structure. + Bits 7 - 0 are used for the thread model + Bits 15 - 8 are used for the version number. + */ + unsigned int option; + + int (*init) (void); + int (*mutex_init) (void **priv); + 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); +#ifdef _WIN32 + ssize_t (*select) (int nfd, void *rset, void *wset, void *eset, + struct timeval *timeout); + ssize_t (*waitpid) (pid_t pid, int *status, int options); + int (*accept) (int s, void *addr, int *length_ptr); + int (*connect) (int s, void *addr, int length); + int (*sendmsg) (int s, const void *msg, int flags); + int (*recvmsg) (int s, void *msg, int flags); +#else + 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); + int (*accept) (int s, struct sockaddr *addr, socklen_t *length_ptr); + int (*connect) (int s, struct sockaddr *addr, socklen_t length); + int (*sendmsg) (int s, const struct msghdr *msg, int flags); + int (*recvmsg) (int s, struct msghdr *msg, int flags); +#endif +}; + +gpg_err_code_t ath_install (struct ath_ops *ath_ops, int check_only); +int ath_init (void); + + +/* Functions for mutual exclusion. */ +typedef void *ath_mutex_t; +#define ATH_MUTEX_INITIALIZER 0 + +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); +#ifdef _WIN32 +ssize_t ath_select (int nfd, void *rset, void *wset, void *eset, + struct timeval *timeout); +ssize_t ath_waitpid (pid_t pid, int *status, int options); +int ath_accept (int s, void *addr, int *length_ptr); +int ath_connect (int s, void *addr, int length); +int ath_sendmsg (int s, const void *msg, int flags); +int ath_recvmsg (int s, void *msg, int flags); +#else +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); +int ath_accept (int s, struct sockaddr *addr, socklen_t *length_ptr); +int ath_connect (int s, 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 + +#endif /* ATH_H */ |