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-rw-r--r--src/signaler.cpp13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/signaler.cpp b/src/signaler.cpp
index 2ba6285..d9a308e 100644
--- a/src/signaler.cpp
+++ b/src/signaler.cpp
@@ -245,11 +245,22 @@ int xs::signaler_t::make_fdpair (fd_t *r_, fd_t *w_)
// implement IOCP polling mechanism that allows to poll on both sockets
// and in-process synchronisation objects.
+ // Make the following critical section accessible to everyone.
+ SECURITY_ATTRIBUTES sa = {0};
+ sa.nLength = sizeof (sa);
+ sa.bInheritHandle = FALSE;
+ SECURITY_DESCRIPTOR sd;
+ BOOL ok = InitializeSecurityDescriptor (&sd, SECURITY_DESCRIPTOR_REVISION);
+ win_assert (ok);
+ ok = SetSecurityDescriptorDacl(&sd, TRUE, (PACL) NULL, FALSE);
+ win_assert (ok);
+ 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
// crossing the process boundary.
// We'll use named event object to implement the critical section.
- HANDLE sync = CreateEvent (NULL, FALSE, TRUE, "xs-signaler-port-sync");
+ HANDLE sync = CreateEvent (&sa, FALSE, TRUE, "xs-signaler-port-sync");
win_assert (sync != NULL);
// Enter the critical section.