MutexGuard.h

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#ifndef UTILS_MUTEXGUARD_H
#define UTILS_MUTEXGUARD_H
 
#include "tdb.h"
 
#include <mutex>
 
#include "utils/ResourceGuard.h"
 
namespace taco {
 
struct MutexReleaseFunc {
    void operator()(std::mutex* m) const {
        m->unlock();
    }
};
 
class MutexGuard: public ResourceGuard<std::mutex*, MutexReleaseFunc,
                                       std::mutex*, nullptr> {
public:
    MutexGuard():
        ResourceGuard() {}
 
    MutexGuard(std::mutex *m):
        ResourceGuard(
            // make sure we lock the mutex first before we pass it to the
            // ResourceGuard
            m ? (m->lock(), m) : nullptr
        ) {}
};
 
}   // namespace taco
 
#endif      // UTILS_MUTEXGUARD_H