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#ifndef foodaemonpidhfoo
#define foodaemonpidhfoo
/*
* This file is part of libdaemon.
*
* libdaemon 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.
*
* libdaemon 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 libdaemon; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include <sys/types.h>
/** \file
*
* Contains an API for manipulating PID files.
*/
/** Prototype of a function for generating the name of a PID file.
*/
typedef const char* (*daemon_pid_file_proc_t)(void);
/** Identification string for the PID file name, only used when
* daemon_pid_file_proc is set to daemon_pid_file_proc_default(). Use
* daemon_ident_from_argv0() to generate an identification string from
* argv[0]
*/
extern const char *daemon_pid_file_ident;
/** A function pointer which is used to generate the name of the PID
* file to manipulate. Points to daemon_pid_file_proc_default() by
* default.
*/
extern daemon_pid_file_proc_t daemon_pid_file_proc;
/** A function for creating a pid file name from
* daemon_pid_file_ident
* @return The PID file path
*/
const char *daemon_pid_file_proc_default(void);
/** Creates PID pid file for the current process
* @return zero on success, nonzero on failure
*/
int daemon_pid_file_create(void);
/** Removes the PID file of the current process
* @return zero on success, nonzero on failure
*/
int daemon_pid_file_remove(void);
/** Returns the PID file of a running daemon, if available
* @return The PID or negative on failure
*/
pid_t daemon_pid_file_is_running(void);
/** Kills a running daemon, if available
* @param s The signal to send
* @return zero on success, nonzero on failure
*/
int daemon_pid_file_kill(int s);
/** If this variable is defined to 1 iff daemon_pid_file_kill_wait() is supported.*/
#define DAEMON_PID_FILE_KILL_WAIT_AVAILABLE 1
/** Similar to daemon_pid_file_kill() but waits until the process
* died. This functions is new in libdaemon 0.3. The macro
* DAEMON_PID_FILE_KILL_WAIT_AVAILABLE is defined iff libdaemon
* supports this function.
*
* @param s The signal to send
* @param m Seconds to wait at maximum
* @return zero on success, nonzero on failure (timeout condition is considered a failure)
*/
int daemon_pid_file_kill_wait(int s, int m);
#endif
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