/*
 * Mutex types (Single UNIX Specification, Version 2, 1997).
 *
 * Note that a mutex attribute with one of the following types:
 *
 *      PTHREAD_MUTEX_NORMAL
 *      PTHREAD_MUTEX_RECURSIVE
 *      MUTEX_TYPE_FAST (deprecated)
 *      MUTEX_TYPE_COUNTING_FAST (deprecated)
 *
 * will deviate from POSIX specified semantics.
 */
enum pthread_mutextype {
        PTHREAD_MUTEX_ERRORCHECK        = 1,    /* Default POSIX mutex */
        PTHREAD_MUTEX_RECURSIVE         = 2,    /* Recursive mutex */
        PTHREAD_MUTEX_NORMAL            = 3,    /* No error checking */
        MUTEX_TYPE_MAX
};

#define PTHREAD_MUTEX_DEFAULT           PTHREAD_MUTEX_ERRORCHECK
#define MUTEX_TYPE_FAST                 PTHREAD_MUTEX_NORMAL
#define MUTEX_TYPE_COUNTING_FAST        PTHREAD_MUTEX_RECURSIVE