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Merge pull request #309 from hurtonm/fix_issue_335

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Fix issue #335
This commit is contained in:
Pieter Hintjens 2012-04-11 04:38:12 -07:00
commit e276df2bdf
1 changed files with 7 additions and 1 deletions
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8
src/signaler.cpp
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@ -238,7 +238,13 @@ int zmq::signaler_t::make_fdpair (fd_t *r_, fd_t *w_)
// two instances of the library don't accidentally create signaler
// crossing the process boundary.
// We'll use named event object to implement the critical section.
HANDLE sync = CreateEvent (NULL, FALSE, TRUE, TEXT("zmq-signaler-port-sync"));
// 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"));
if (sync == NULL && GetLastError () == ERROR_ACCESS_DENIED)
sync = OpenEvent (SYNCHRONIZE, FALSE, TEXT ("zmq-signaler-port-sync"));
win_assert (sync != NULL);
// Enter the critical section.