dpid.h(3) | libdaemon | dpid.h(3) |
NAME¶
dpid.h - Contains an API for manipulating PID files.SYNOPSIS¶
#include <sys/types.h>
Macros¶
#define DAEMON_PID_FILE_KILL_WAIT_AVAILABLE 1
This variable is defined to 1 iff daemon_pid_file_kill_wait() is supported.
Typedefs¶
typedef const char *(* daemon_pid_file_proc_t) (void)
Prototype of a function for generating the name of a PID file.
Functions¶
const char * daemon_pid_file_proc_default (void)
A function for creating a pid file name from daemon_pid_file_ident. int daemon_pid_file_create (void)
Creates PID pid file for the current process. int daemon_pid_file_remove (void)
Removes the PID file of the current process. pid_t daemon_pid_file_is_running (void)
Returns the PID file of a running daemon, if available. int daemon_pid_file_kill (int s)
Kills a running daemon, if available. int daemon_pid_file_kill_wait (int s, int m)
Similar to daemon_pid_file_kill() but waits until the process died.
Variables¶
const char * daemon_pid_file_ident
Identification string for the PID file name, only used when daemon_pid_file_proc is set to daemon_pid_file_proc_default(). daemon_pid_file_proc_t daemon_pid_file_proc
A function pointer which is used to generate the name of the PID file to manipulate.
Detailed Description¶
Contains an API for manipulating PID files.Definition in file dpid.h.
Macro Definition Documentation¶
#define DAEMON_PID_FILE_KILL_WAIT_AVAILABLE 1¶
This variable is defined to 1 iff daemon_pid_file_kill_wait() is supported.Since:
0.3
See also:
daemon_pid_file_kill_wait()
Definition at line 82 of file dpid.h.
Typedef Documentation¶
typedef const char*(* daemon_pid_file_proc_t) (void)¶
Prototype of a function for generating the name of a PID file.Definition at line 37 of file dpid.h.
Function Documentation¶
int daemon_pid_file_create (void)¶
Creates PID pid file for the current process.Returns:
zero on success, nonzero on failure
Examples:
testd.c.
pid_t daemon_pid_file_is_running (void)¶
Returns the PID file of a running daemon, if available.Returns:
The PID or negative on failure
Examples:
testd.c.
int daemon_pid_file_kill (int s)¶
Kills a running daemon, if available.Parameters:
s The signal to send
Returns:
zero on success, nonzero on failure
int daemon_pid_file_kill_wait (int s, int m)¶
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.Parameters:
s The signal to send
m Seconds to wait at maximum
m Seconds to wait at maximum
Returns:
zero on success, nonzero on failure (timeout condition is
considered a failure)
Since:
0.3
See also:
DAEMON_PID_FILE_KILL_WAIT_AVAILABLE
Examples:
testd.c.
const char* daemon_pid_file_proc_default (void)¶
A function for creating a pid file name from daemon_pid_file_ident.Returns:
The PID file path
int daemon_pid_file_remove (void)¶
Removes the PID file of the current process.Returns:
zero on success, nonzero on failure
Examples:
testd.c.
Variable Documentation¶
const char* daemon_pid_file_ident¶
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]Examples:
testd.c.
daemon_pid_file_proc_t daemon_pid_file_proc¶
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.Author¶
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