NAME
ost::Lockfile - This class is used to create a 'named' lock entity that can be used to control access to a resource between multiple processes.
SYNOPSIS
#include <process.h>
Public Member Functions
Lockfile (const char *name)
Create a lock under a known name. Lockfile ()
Create a new lock object that can be used to make locks. ~Lockfile ()
Destroy the current lock and release it. bool lock (const char *name)
Lock a system-wide name for this process. void unlock (void)
Release an acquired lock. bool isLocked (void)
Flag if the current process has aqcuired a lock.
Detailed Description
This class is used to create a 'named' lock entity that can be used to control access to a resource between multiple processes.
The posix implimentation uses a pidfile and the win32 version uses a globally visible mutex.
Author
David Sugar [email protected]
System-wide named lock
Constructor & Destructor Documentation
ost::Lockfile::Lockfile (const char * name)
Create a lock under a known name.
Parameters
name of system-wide lock to create.
ost::Lockfile::Lockfile ()
Create a new lock object that can be used to make locks.
ost::Lockfile::~Lockfile () [inline]
Destroy the current lock and release it.
Member Function Documentation
bool ost::Lockfile::isLocked (void)
Flag if the current process has aqcuired a lock.
Returns
true if we have the lock.
bool ost::Lockfile::lock (const char * name)
Lock a system-wide name for this process. If the lock is successful, return true. If an existing lock was already acquired, release it first.
Returns
true if lock successful.
Parameters
name system-wide lock to use.
void ost::Lockfile::unlock (void)
Release an acquired lock.
Author
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