useCondVar.H File Reference

Legacy wrapper class for POSIX condition variables. More...

#include <pthread.h>

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Classes
class	UseCondVar
	Legacy wrapper class for POSIX condition variables. More...

Detailed Description

Legacy wrapper class for POSIX condition variables.

This file provides a simple legacy C++ wrapper around pthread condition variables, offering a cleaner interface for thread synchronization.

Deprecated:

New code should generally prefer std::condition_variable or higher-level coordination helpers such as Aleph::bounded_channel<T> from concurrency_utils.H.

Features

• Wait: Block until signaled
• Signal: Wake one waiting thread
• Broadcast: Wake all waiting threads

Usage Example

pthread_mutex_t mutex;
pthread_cond_t cond;
 
pthread_mutex_init(&mutex, nullptr);
pthread_cond_init(&cond, nullptr);
 
// In waiting thread:
{
    UseMutex lock(&mutex);
    UseCondVar cv(&cond, &mutex);
    while (!condition_met)
        cv.wait();
}
 
// In signaling thread:
{
    UseMutex lock(&mutex);
    condition_met = true;
    UseCondVar cv(&cond, &mutex);
    cv.signal();
}

Note

Always hold the associated mutex when calling wait/signal/broadcast.

Legacy POSIX wrapper kept for backward compatibility. Prefer std::condition_variable or concurrency_utils.H in new code.

See also

useMutex.H For the companion mutex wrapper

Author

Leandro Rabindranath León *

Definition in file useCondVar.H.