Overhead of pthread mutexes?

Question

I\'m trying to make a C++ API (for Linux and Solaris) thread-safe, so that its functions can be called from different threads without breaking internal data structures. In m

Answer 1

Well a suboptimal but simple approach is to place macros around your mutex locks and unlocks. Then have a compiler / makefile option to enable / disable threading.

Ex.

#ifdef THREAD_ENABLED
#define pthread_mutex_lock(x) ... //actual mutex call
#endif

#ifndef THREAD_ENABLED
#define pthread_mutex_lock(x) ... //do nothing
#endif

Then when compiling do a gcc -DTHREAD_ENABLED to enable threading.

Again I would NOT use this method in any large project. But only if you want something fairly simple.