pthread_cond_init
时间: 2023-10-17 09:21:21 浏览: 33
pthread_cond_init initializes a condition variable with default attributes. A condition variable is used to synchronize the execution of threads. It allows threads to wait for a particular condition to become true.
The function takes three arguments:
1. The first argument is a pointer to the condition variable to be initialized.
2. The second argument is a pointer to the condition variable attributes. If NULL is passed, default attributes are used.
3. The third argument is an optional hint for the implementation to use when allocating resources for the condition variable. This argument is typically ignored.
The function returns zero on success and a non-zero error code on failure.
Here's an example of how to use pthread_cond_init:
```
pthread_cond_t cond;
// Initialize the condition variable with default attributes
if (pthread_cond_init(&cond, NULL) != 0) {
// Handle error
}
```