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* exceptions.cc (interrupt_setup): Set sigsave.sig last to avoid a race.

This commit is contained in:
Christopher Faylor 2003-08-20 18:09:24 +00:00
parent d704b32411
commit 2bf794af9a
2 changed files with 6 additions and 1 deletions
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5
winsup/cygwin/ChangeLog
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@ -1,3 +1,8 @@
2003-08-20 Pierre Humblet <pierre.humblet@ieee.org>
* exceptions.cc (interrupt_setup): Set sigsave.sig last to avoid a
race.
2003-08-20 Christopher Faylor <cgf@redhat.com>
* sigproc.cc (wait_sig): Ensure that myself->getsigtodo array is

2
winsup/cygwin/exceptions.cc
View File

@ -693,7 +693,6 @@ interrupt_setup (int sig, void *handler, DWORD retaddr, DWORD *retaddr_on_stack,
sigsave.newmask = sigsave.oldmask | siga.sa_mask | SIGTOMASK (sig);
sigsave.sa_flags = siga.sa_flags;
sigsave.func = (void (*)(int)) handler;
sigsave.sig = sig;
sigsave.saved_errno = -1; // Flag: no errno to save
if (handler == sig_handle_tty_stop)
{
@ -703,6 +702,7 @@ interrupt_setup (int sig, void *handler, DWORD retaddr, DWORD *retaddr_on_stack,
/* Clear any waiting threads prior to dispatching to handler function */
proc_subproc (PROC_CLEARWAIT, 1);
int res = SetEvent (signal_arrived); // For an EINTR case
sigsave.sig = sig; // Should ALWAYS be last thing set to avoid a race
sigproc_printf ("armed signal_arrived %p, res %d", signal_arrived, res);
}