Condition

Overview

Condition wrapper.
Provides passing data between signal and wait threads.
Normally, if no thread waits on a condition, signal is missed. This
implementation differs as it will keep a result variable when 'signal' is
called. Signal will mark the condition 'done', so when another thread calls
wait(), it won't be blocked, it will return immediately with the user
provided data.

Usage

#include "sc_cond.h"

#include <stdio.h>

int main()
{
    struct sc_cond cond;

    sc_cond_init(&cond);
    sc_cond_signal(&cond, "test"); // Call this on thread-1
    char* p = sc_cond_wait(&cond); // Call this on another thread.

    printf("%s \n", p); // Prints "test"

    return 0;
}