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Merge pull request #404 from mimetnet/master

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Correction for LIBZMQ-335
This commit is contained in:
Ian Barber 2012-07-26 14:12:05 -07:00
commit 631e12d4e5
1 changed files with 10 additions and 2 deletions
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12
src/signaler.cpp
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@ -233,6 +233,14 @@ int zmq::signaler_t::make_fdpair (fd_t *r_, fd_t *w_)
return 0;
#elif defined ZMQ_HAVE_WINDOWS
SECURITY_DESCRIPTOR sd = {0};
SECURITY_ATTRIBUTES sa = {0};
InitializeSecurityDescriptor(&sd, SECURITY_DESCRIPTOR_REVISION);
SetSecurityDescriptorDacl(&sd, TRUE, 0, FALSE);
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.lpSecurityDescriptor = &sd;
// This function has to be in a system-wide critical section so that
// two instances of the library don't accidentally create signaler
@ -241,9 +249,9 @@ int zmq::signaler_t::make_fdpair (fd_t *r_, fd_t *w_)
// Note that if the event object already exists, the CreateEvent requests
// EVENT_ALL_ACCESS access right. If this fails, we try to open
// the event object asking for SYNCHRONIZE access only.
HANDLE sync = CreateEvent (NULL, FALSE, TRUE, TEXT ("zmq-signaler-port-sync"));
HANDLE sync = CreateEvent (&sa, FALSE, TRUE, TEXT ("Global\\zmq-signaler-port-sync"));
if (sync == NULL && GetLastError () == ERROR_ACCESS_DENIED)
sync = OpenEvent (SYNCHRONIZE, FALSE, TEXT ("zmq-signaler-port-sync"));
sync = OpenEvent (SYNCHRONIZE | EVENT_MODIFY_STATE, FALSE, TEXT ("Global\\zmq-signaler-port-sync"));
win_assert (sync != NULL);