mutex::lock Class Reference

Class locking a mutex on construction and unlocking on destruction. More...

#include <frios/posix/threads/mutex.hpp>

Inheritance diagram for mutex::lock:

Public Member Functions
	lock (mutex &mutex)
	Locks the specified mutex. More...
	~lock (void)
	Unlocks the mutex locked in the constructor.

Detailed Description

Class locking a mutex on construction and unlocking on destruction.

Instances of the lock class lock a specified mutex when they are constructed and unlock it when they are destroyed.

Example of usage:

// a variable shared by multiple threads
int shared_i;
// a mutex for synchronizing access to shared_i
mutex mutex_i;

// synchronized function returning the value of shared_i
int get_shared_i(void)
{
  mutex::lock l(mutex_i);
  return shared_i;
}

// synchronized function setting the value of shared_i
void set_shared_i(int new_i)
{
  mutex::lock l(mutex_i);
  shared_i = new_i;
}

Examples:

example/posix/threads-bingo_detached.cpp, and example/posix/threads-producer_consumer.cpp.

Constructor & Destructor Documentation

lock

(

mutex &

mutex

)

Locks the specified mutex.

Exceptions

lock_error

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

• frios/posix/threads/mutex.hpp