Question

I am writing a OS abstraction library for which i want to write wrappers for pthread mutex over Linux.

This code shall be called by multiple threads.

The code goes something like this:

int my_lock(pthread_mutex_t *mutex)
{
    return pthread_mutex_lock(mutex);
}

1. Will the function my_lock also will be thread-safe?
2. If not, How to make it thread-safe?

Answer 1

This is what you posted as your function:

int my_lock(pthread_mutex_t *mutex) 
{ 
    return pthread_mutex_lock(mutex); 
}

Why do you even need the function here?

The code is thread-safe as you have presented it.