dpid.h (3)

#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.

Contains an API for manipulating PID files.

Definition in file dpid.h.

#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 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.

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 (ints)

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 (ints, intm)

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

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.

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.

\fBdaemon_pid_file_proc_t\fP 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.

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