oss/luanti
oss/luanti
1
0
Fork 0
mirror of https://github.com/luanti-org/luanti.git synced 2025-10-05 19:31:04 +00:00
Code Wiki Activity

jthread remove locks that aren't absolutely required

Browse source 
add c++11 atomic support (optional)
This commit is contained in:
sapier 2014-01-31 22:16:47 +01:00
parent c00ed9dac3
commit ea0df3e4cb
3 changed files with 39 additions and 109 deletions
Download patch file Download diff file Expand all files Collapse all files

38
src/jthread/jthread.h
View file

@ -26,9 +26,12 @@
*/
#ifndef JTHREAD_H
#define JTHREAD_H
#if __cplusplus >= 201103L
#include <atomic>
#endif
#include "jthread/jmutex.h"
#define ERR_JTHREAD_CANTINITMUTEX -1
@ -43,11 +46,14 @@ public:
JThread();
virtual ~JThread();
int Start();
void Stop();
inline void Stop()
{ requeststop = true; }
int Kill();
virtual void *Thread() = 0;
bool IsRunning();
bool StopRequested();
inline bool IsRunning()
{ return running; }
inline bool StopRequested()
{ return requeststop; }
void *GetReturnValue();
bool IsSameThread();
@ -75,13 +81,35 @@ private:
pthread_t threadid;
/*
* reading and writing bool values is atomic on all relevant architectures
* ( x86 + arm ). No need to waste time for locking here.
* once C++11 is supported we can tell compiler to handle cpu caches correct
* too. This should cause additional improvement (and silence thread
* concurrency check tools.
*/
#if __cplusplus >= 201103L
std::atomic_bool started;
#else
bool started;
#endif
#endif // WIN32
void *retval;
/*
* reading and writing bool values is atomic on all relevant architectures
* ( x86 + arm ). No need to waste time for locking here.
* once C++11 is supported we can tell compiler to handle cpu caches correct
* too. This should cause additional improvement (and silence thread
* concurrency check tools.
*/
#if __cplusplus >= 201103L
std::atomic_bool running;
std::atomic_bool requeststop;
#else
bool running;
bool requeststop;
#endif
JMutex runningmutex;
JMutex continuemutex,continuemutex2;
};