---

DAQThreadMutex Class Reference

Provides methods for manipulating a mutex. More...

Inheritance diagram for DAQThreadMutex::

List of all members.

Public Methods
	DAQThreadMutex ()
	Constructor. More...
	~DAQThreadMutex ()
	Destructor. More...
int	Lock ()
	Lock mutex. More...
int	TryLock ()
	Try to lock mutex. More...
int	UnLock ()
	Unlock mutex. More...
virtual void	PrintEyeCatcher (ostream &)
	Print an eye catcher. More...
Protected Attributes
daqthread_mutex_t	thrdmutex
	The mutex. More...
Friends
class	DAQThreadCond

---

Detailed Description

The DAQThreadMutex class provides methods that implement a thread mutex.

Author:

Eric Kasten

Version:

0.4.0

---

Constructor & Destructor Documentation

DAQThreadMutex::DAQThreadMutex (  )

Basic constructor method for this class. Parameters: None   Returns: this

DAQThreadMutex::~DAQThreadMutex (  )

Destructor method for this class. Parameters: None   Returns: None

---

Member Function Documentation

int DAQThreadMutex::Lock (  )

Attempts to lock the mutex. This method will block if the mutex has been locked by another thread. Parameters: None   Returns: When the mutex can be locked by a requesting thread Return values: 0   if the lock was successful. <0   if the lock was unsuccessful.

void DAQThreadMutex::PrintEyeCatcher (  ostream & aStream )  [virtual]

Print an eye catcher for this mutex. Parameters: aStream   An ostream object to which to print. Returns: None Reimplemented from DAQObject.

int DAQThreadMutex::TryLock (  )

Attempts to lock the mutex. This method doesn't block if the mutex has been locked by another thread. Parameters: None   Returns: When the mutex can be locked by a requesting thread Return values: 0   if the lock was successful. <0   if the lock was unsuccessful.

int DAQThreadMutex::UnLock (  )

Unlocks the mutex. Parameters: None   Returns: If the unlock was successful Return values: 0   if the unlock was successful. <0   if the unlock was unsuccessful (owned by another thread).

---

Member Data Documentation

DAQThreadMutex::thrdmutex [protected]

The actual mutex that is locked.

---

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

• DAQThreadMutex.cc
• DAQThreadMutex.h

---