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/* runner.h - Run and watch the backend engines
* Copyright (C) 2009 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG 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 3 of the License, or
* (at your option) any later version.
*
* GnuPG 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef G13_RUNNER_H
#define G13_RUNNER_H
/* The runner object. */
struct runner_s;
typedef struct runner_s *runner_t;
/* Prototypes for the handler functions provided by the engine. */
typedef gpg_error_t (*engine_handler_fnc_t) (void *opaque,
runner_t runner,
const char *statusline);
typedef void (*engine_handler_cleanup_fnc_t) (void *opaque);
/* Return the number of active threads. */
unsigned int runner_get_threads (void);
/* Create a new runner object. */
gpg_error_t runner_new (runner_t *r_runner, const char *name);
/* Free a runner object. */
void runner_release (runner_t runner);
/* Return the identifier of RUNNER. */
unsigned int runner_get_rid (runner_t runner);
/* Find a runner by its rid. */
runner_t runner_find_by_rid (unsigned int rid);
/* Functions to set properties of the runner. */
void runner_set_fds (runner_t runner, int in_fd, int out_fd);
void runner_set_pid (runner_t runner, pid_t pid);
/* Register the handler functions with a runner. */
void runner_set_handler (runner_t runner,
engine_handler_fnc_t handler,
engine_handler_cleanup_fnc_t handler_cleanup,
void *handler_data);
/* Start the runner. */
gpg_error_t runner_spawn (runner_t runner);
/* Cancel a runner. */
void runner_cancel (runner_t runner);
/* Cancel all runner. */
void runner_cancel_all (void);
/* Send data back to the engine. This function is used by the
engine's handler. */
gpg_error_t runner_send_line (runner_t runner,
const void *data, size_t datalen);
#endif /*G13_RUNNER_H*/
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