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trunk/branch integration: bugfix

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This commit is contained in:
Marian Krivos 2011-08-23 07:03:43 +00:00
parent 60bbdd7a6e
commit 6951be35de
1 changed files with 11 additions and 11 deletions
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22
Foundation/src/SharedMemory_POSIX.cpp
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@ -60,24 +60,24 @@ SharedMemoryImpl::SharedMemoryImpl(const std::string& name, std::size_t size, Sh
_name.append("tmp/"); _name.append("tmp/");
#endif #endif
_name.append(name); _name.append(name);
int flags = O_CREAT; int flags = _server ? O_CREAT : 0;
if (_access == SharedMemory::AM_WRITE) if (_access == SharedMemory::AM_WRITE)
flags |= O_RDWR; flags |= O_RDWR;
else else
flags |= O_RDONLY; flags |= O_RDONLY;
// open the shared memory segment // open the shared memory segment
_fd = ::shm_open(_name.c_str(), flags, S_IRUSR | S_IWUSR); _fd = ::shm_open(_name.c_str(), flags, S_IRUSR | S_IWUSR);
if (_fd == -1) if (_fd == -1)
throw SystemException("Cannot create shared memory object", _name); throw SystemException("Cannot create shared memory object", _name);
// now set the correct size for the segment // now set the correct size for the segment
if (-1 == ::ftruncate(_fd, size)) if (_server && -1 == ::ftruncate(_fd, size))
{ {
::close(_fd); ::close(_fd);
_fd = -1; _fd = -1;
::shm_unlink(_name.c_str()); ::shm_unlink(_name.c_str());
throw SystemException("Cannot resize shared memory object", _name); throw SystemException("Cannot resize shared memory object", _name);
} }