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NamedMutex_UNIX.cpp must remove semid #271

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This commit is contained in:
Alex Fabijanic
2017-10-12 14:59:19 -05:00
parent 056a411083
commit 317b6f7543
2 changed files with 9 additions and 1 deletions
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1
Foundation/include/Poco/NamedMutex_UNIX.h
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@@ -46,6 +46,7 @@ private:
sem_t* _sem; sem_t* _sem;
#else #else
int _semid; // semaphore id int _semid; // semaphore id
bool _owned;
#endif #endif
}; };

9
Foundation/src/NamedMutex_UNIX.cpp
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@@ -72,12 +72,17 @@ NamedMutexImpl::NamedMutexImpl(const std::string& name):
union semun arg; union semun arg;
arg.val = 1; arg.val = 1;
semctl(_semid, 0, SETVAL, arg); semctl(_semid, 0, SETVAL, arg);
_owned = true;
return;
} }
else if (errno == EEXIST) else if (errno == EEXIST)
{ {
_semid = semget(key, 1, 0); _semid = semget(key, 1, 0);
_owned = false;
if (_semid >= 0) return;
} }
else throw SystemException(Poco::format("cannot create named mutex %s (semget() failed, errno=%d)", fileName, errno), _name);
throw SystemException(Poco::format("cannot create named mutex %s (semget() failed, errno=%d)", fileName, errno), _name);
#endif // defined(sun) || defined(__APPLE__) || defined(__osf__) || defined(__QNX__) || defined(_AIX) #endif // defined(sun) || defined(__APPLE__) || defined(__osf__) || defined(__QNX__) || defined(_AIX)
} }
@@ -86,6 +91,8 @@ NamedMutexImpl::~NamedMutexImpl()
{ {
#if defined(sun) || defined(__APPLE__) || defined(__osf__) || defined(__QNX__) || defined(_AIX) #if defined(sun) || defined(__APPLE__) || defined(__osf__) || defined(__QNX__) || defined(_AIX)
sem_close(_sem); sem_close(_sem);
#else
if (_owned) semctl(_semid, 0, IPC_RMID, 0);
#endif #endif
} }