gpgme/branches/gpgme-0-3-branch/gpgme/io.h
2002-09-30 08:04:16 +00:00

68 lines
2.1 KiB
C

/* io.h - Interface to the I/O functions.
* Copyright (C) 2000 Werner Koch (dd9jn)
* Copyright (C) 2001, 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 IO_H
#define IO_H
#include "types.h"
/* A single file descriptor passed to spawn. For child fds, dup_to
specifies the fd it should become in the child. */
struct spawn_fd_item_s
{
int fd;
int dup_to;
};
struct io_select_fd_s
{
int fd;
int for_read;
int for_write;
int signaled;
int frozen;
void *opaque;
};
/* These function are either defined in posix-io.c or w32-io.c. */
int _gpgme_io_read (int fd, void *buffer, size_t count);
int _gpgme_io_write (int fd, const void *buffer, size_t count);
int _gpgme_io_pipe (int filedes[2], int inherit_idx);
int _gpgme_io_close (int fd);
int _gpgme_io_set_close_notify (int fd, void (*handler) (int, void *),
void *value);
int _gpgme_io_set_nonblocking (int fd);
/* Spawn the executable PATH with ARGV as arguments, after forking
close all fds in FD_PARENT_LIST in the parent and close or dup all
fds in FD_CHILD_LIST in the child. */
int _gpgme_io_spawn (const char *path, char **argv,
struct spawn_fd_item_s *fd_child_list,
struct spawn_fd_item_s *fd_parent_list);
int _gpgme_io_waitpid (int pid, int hang, int *r_status, int *r_signal);
int _gpgme_io_kill (int pid, int hard);
int _gpgme_io_select (struct io_select_fd_s *fds, size_t nfds, int nonblock);
#endif /* IO_H */