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Remove dead handling for pre-POSIX sigwait().

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sigwait() is in SUSv2 and all targeted Unix systems have it.  An earlier
pre-standard function prototype existed on some older systems, but we
no longer need a workaround for that.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Greg Stark <stark@mit.edu>
Reviewed-by: Robert Haas <robertmhaas@gmail.com>
Discussion: https://postgr.es/m/CA+hUKGJ3LHeP9w5Fgzdr4G8AnEtJ=z=p6hGDEm4qYGEUX5B6fQ@mail.gmail.com
This commit is contained in:
Thomas Munro
2022-07-24 09:32:34 +12:00
parent 86e5eb4f58
commit fb12becdfb
6 changed files with 10 additions and 104 deletions
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10
src/bin/psql/command.c
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@ -4953,7 +4953,7 @@ do_watch(PQExpBuffer query_buf, double sleep)
FILE *pagerpipe = NULL;
int title_len;
int res = 0;
#ifdef HAVE_POSIX_DECL_SIGWAIT
#ifndef WIN32
sigset_t sigalrm_sigchld_sigint;
sigset_t sigalrm_sigchld;
sigset_t sigint;
@ -4967,7 +4967,7 @@ do_watch(PQExpBuffer query_buf, double sleep)
return false;
}
#ifdef HAVE_POSIX_DECL_SIGWAIT
#ifndef WIN32
sigemptyset(&sigalrm_sigchld_sigint);
sigaddset(&sigalrm_sigchld_sigint, SIGCHLD);
sigaddset(&sigalrm_sigchld_sigint, SIGALRM);
@ -5006,7 +5006,7 @@ do_watch(PQExpBuffer query_buf, double sleep)
* PAGER environment variables, because traditional pagers probably won't
* be very useful for showing a stream of results.
*/
#ifdef HAVE_POSIX_DECL_SIGWAIT
#ifndef WIN32
pagerprog = getenv("PSQL_WATCH_PAGER");
#endif
if (pagerprog && myopt.topt.pager)
@ -5077,7 +5077,7 @@ do_watch(PQExpBuffer query_buf, double sleep)
if (pagerpipe && ferror(pagerpipe))
break;
#ifndef HAVE_POSIX_DECL_SIGWAIT
#ifdef WIN32
/*
* Set up cancellation of 'watch' via SIGINT. We redo this each time
@ -5158,7 +5158,7 @@ do_watch(PQExpBuffer query_buf, double sleep)
fflush(stdout);
}
#ifdef HAVE_POSIX_DECL_SIGWAIT
#ifndef WIN32
/* Disable the interval timer. */
memset(&interval, 0, sizeof(interval));
setitimer(ITIMER_REAL, &interval, NULL);