simple_lock Class Reference

A simple locking mechanism. More...

#include <fs.h>

List of all members.

Public Types
typedef pid_t	pid_type
Public Member Functions
	simple_lock ()
	C'tor.
	simple_lock (const std::string &a_lockfile)
	C'tor.
	~simple_lock ()
	D'tor.
void	clear (void)
	Clear the simple_lock object.
void	lockfile (const std::string &a_lockfile)
	Set the lockfile path.
const std::string	lockfile (void) const
	Get the lockfile path.
const pid_type	locked_by (void) const
	Get the PID of the locking process.
const bool	is_locked (void) const
	Find out whether or not the lock is in place.
bool	lock (void)
	Lock.
void	unlock (void)
	Unlock.
Private Attributes
std::string	m_lockfile

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Detailed Description

A simple locking mechanism.

Definition at line 341 of file fs.h.

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Member Typedef Documentation

typedef pid_t simple_lock::pid_type

Definition at line 343 of file fs.h.

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Constructor & Destructor Documentation

simple_lock::simple_lock (   )

C'tor. Definition at line 1673 of file fs.cc. References clear(). Here is the call graph for this function:

simple_lock::simple_lock (  const std::string &  a_lockfile  )

C'tor. Definition at line 1679 of file fs.cc. References clear(), and lockfile(). Here is the call graph for this function:

simple_lock::~simple_lock (   )

D'tor. Definition at line 1686 of file fs.cc. References clear(). Here is the call graph for this function:

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Member Function Documentation

void simple_lock::clear (  void   )

Clear the simple_lock object. Definition at line 1692 of file fs.cc. References is_locked(), locked_by(), m_lockfile, and unlock(). Referenced by vault_manager::clear(), lock(), lockfile(), vault_manager::select(), simple_lock(), and ~simple_lock(). Here is the call graph for this function:

const bool simple_lock::is_locked (  void   )  const

Find out whether or not the lock is in place. Definition at line 1733 of file fs.cc. References locked_by(), and pid(). Referenced by clear(), lock(), vault_manager::select(), and test_simple_lock(). Here is the call graph for this function:

bool simple_lock::lock (  void   )

Lock. Definition at line 1746 of file fs.cc. References clear(), is_locked(), m_lockfile, and pid(). Referenced by vault_manager::select(), and test_simple_lock(). Here is the call graph for this function:

const simple_lock::pid_type simple_lock::locked_by (  void   )  const

Get the PID of the locking process. Definition at line 1714 of file fs.cc. References exists(), m_lockfile, and pid(). Referenced by clear(), is_locked(), vault_manager::select(), and test_simple_lock(). Here is the call graph for this function:

const std::string simple_lock::lockfile (  void   )  const

Get the lockfile path. Definition at line 1708 of file fs.cc. References m_lockfile. Referenced by simple_lock().

void simple_lock::lockfile (  const std::string &  a_lockfile  )

Set the lockfile path. Definition at line 1701 of file fs.cc. References clear(), and m_lockfile. Referenced by vault_manager::select(), and test_simple_lock(). Here is the call graph for this function:

void simple_lock::unlock (  void   )

Unlock. Definition at line 1766 of file fs.cc. References exists(), m_lockfile, rm_file(), TRY, and TRY_nomem. Referenced by clear(), and test_simple_lock(). Here is the call graph for this function:

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Member Data Documentation

std::string simple_lock::m_lockfile [private]

Definition at line 359 of file fs.h. Referenced by clear(), lock(), locked_by(), lockfile(), and unlock().

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

• fs.h
• fs.cc

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