hvirtual/guicast/mutex.h

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#ifndef MUTEX_H
#define MUTEX_H

#include <pthread.h>
#include <stdio.h>

class Mutex
{
public:
        Mutex(char *title = 0, int recursive = 0);
        ~Mutex();

        int lock(char *location = 0);
        int unlock();
// Calls pthread_mutex_trylock, whose effect depends on library version.
        int trylock();
        int reset();
// Returns 1 if count is > 0
        int is_locked();

// Number of times the thread currently holding the mutex has locked it.
// For recursive locking.
        int count;
// ID of the thread currently holding the mutex.  For recursive locking.
        pthread_t thread_id;
        int thread_id_valid;
        int recursive;
// Lock the variables for recursive locking.
        pthread_mutex_t recursive_lock;
        pthread_mutex_t mutex;
        char *title;
};


#endif

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