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Cygwin: exceptions.cc: Suspend all threads in sig_handle_tty_stop().

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- Currently, thread created by pthread_create() is not suspended by
  the signal SIGTSTP. For example, even if a process with a thread
  is suspended by Ctrl-Z, the thread continues running. This patch
  fixes the issue.
This commit is contained in:
Takashi Yano via Cygwin-patches 2021-01-29 12:46:26 +09:00 committed by Ken Brown
parent e78f097efd
commit 62334dffd7
1 changed files with 2 additions and 0 deletions
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2
winsup/cygwin/exceptions.cc
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@ -902,7 +902,9 @@ sig_handle_tty_stop (int sig, siginfo_t *, void *)
thread. */ thread. */
/* Use special cygwait parameter to handle SIGCONT. _main_tls.sig will /* Use special cygwait parameter to handle SIGCONT. _main_tls.sig will
be cleared under lock when SIGCONT is detected. */ be cleared under lock when SIGCONT is detected. */
pthread::suspend_all_except_self ();
DWORD res = cygwait (NULL, cw_infinite, cw_sig_cont); DWORD res = cygwait (NULL, cw_infinite, cw_sig_cont);
pthread::resume_all ();
switch (res) switch (res)
{ {
case WAIT_SIGNALED: case WAIT_SIGNALED: