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Avoid defining SIGTTIN/SIGTTOU on Windows.

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Setting them to SIG_IGN seems unlikely to have any beneficial effect
on that platform, and given the signal numbering collision with SIGABRT,
it could easily have bad effects.

Given the lack of field complaints that can be traced to this, I don't
presently feel a need to back-patch.

Discussion: https://postgr.es/m/5627.1542477392@sss.pgh.pa.us
This commit is contained in:
Tom Lane
2018-11-17 16:31:07 -05:00
parent 125f551c8b
commit 37afc079ab
2 changed files with 4 additions and 2 deletions
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4
src/backend/postmaster/postmaster.c
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@@ -654,8 +654,12 @@ PostmasterMain(int argc, char *argv[])
* a standalone backend, their default handling is reasonable. Hence, all
* child processes should just allow the inherited settings to stand.
*/
#ifdef SIGTTIN
pqsignal(SIGTTIN, SIG_IGN); /* ignored */
#endif
#ifdef SIGTTOU
pqsignal(SIGTTOU, SIG_IGN); /* ignored */
#endif
/* ignore SIGXFSZ, so that ulimit violations work like disk full */
#ifdef SIGXFSZ