A wrapper around the pidfile_* family of commands implementing the RAII pattern. More...

#include <pidfile.hpp>

Public Member Functions
	Pidfile (char const *const pfname, mode_t const mode)
	Attempts to open the pidfile. More...

	~Pidfile ()
	Removes the pidfile.

pid_t	other ()
	Returns the PID of the other process holding the lock.

void	write ()
	Write PID to the file, should be called after daemon(). More...

Private Attributes
pid_t	otherpid
	In case of failure to acquire the lock, the PID of the other process holding it is stored here.

pidfh *	pfh
	Pointer to the pidfile state data structure. More...

Detailed Description

A wrapper around the pidfile_* family of commands implementing the RAII pattern.

Constructor & Destructor Documentation

inline

Attempts to open the pidfile.

Parameters

pfname,mode Arguments to pidfile_open()

Exceptions

pid_t	Throws the PID of the other process already holding the requested pidfile
sys::sc_error<error>	Throws with the errno of pidfile_open()

void sys::pid::Pidfile::write ( )

inline

Write PID to the file, should be called after daemon().

Exceptions

sys::sc_error<error> Throws with the errno of pidfile_write()

pidfh* sys::pid::Pidfile::pfh

private

Pointer to the pidfile state data structure.

Thus is allocated by pidfile_open() and assumedly freed by pidfile_remove().

The documentation for this class was generated from the following file: