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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2001-08-04 00:14:43 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2001-08-04 00:14:43 +0000 |
| commit | dad8e410d0c4329ec68392c442e1f9dafc8ec17c (patch) | |
| tree | 5e512caa61cd99f2968ff3707c9e058d5760e118 /src/backend/tcop/postgres.c | |
| parent | 2b769c82126eeb87eb02a6c1a301beb4edd14407 (diff) | |
| download | postgresql-dad8e410d0c4329ec68392c442e1f9dafc8ec17c.tar.gz postgresql-dad8e410d0c4329ec68392c442e1f9dafc8ec17c.zip | |
Fix handling of SIGCHLD, per recent pghackers discussion: on some
platforms system(2) gets confused unless the signal handler is set to
SIG_DFL, not SIG_IGN. pgstats.c now uses pqsignal() as it should,
not signal(). Also, arrange for the stats collector process to show
a reasonable ID in 'ps', rather than looking like a postmaster.
Diffstat (limited to 'src/backend/tcop/postgres.c')
| -rw-r--r-- | src/backend/tcop/postgres.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c index 4083d0cd020..ac701704c16 100644 --- a/src/backend/tcop/postgres.c +++ b/src/backend/tcop/postgres.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.229 2001/07/31 22:55:45 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.230 2001/08/04 00:14:43 tgl Exp $ * * NOTES * this is the "main" module of the postgres backend and @@ -1102,7 +1102,9 @@ usage(char *progname) * ---------------------------------------------------------------- */ int -PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[], const char *username) +PostgresMain(int argc, char *argv[], + int real_argc, char *real_argv[], + const char *username) { int flag; @@ -1535,15 +1537,15 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[], const cha */ pqsignal(SIGPIPE, SIG_IGN); pqsignal(SIGUSR1, SIG_IGN); /* this signal available for use */ + pqsignal(SIGUSR2, Async_NotifyHandler); /* flush also sinval cache */ pqsignal(SIGFPE, FloatExceptionHandler); - pqsignal(SIGCHLD, SIG_IGN); /* ignored (may get this in system() - * calls) */ /* * Reset some signals that are accepted by postmaster but not by * backend */ + pqsignal(SIGCHLD, SIG_DFL); /* system() requires this on some platforms */ pqsignal(SIGTTIN, SIG_DFL); pqsignal(SIGTTOU, SIG_DFL); pqsignal(SIGCONT, SIG_DFL); @@ -1711,7 +1713,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[], const cha if (!IsUnderPostmaster) { puts("\nPOSTGRES backend interactive interface "); - puts("$Revision: 1.229 $ $Date: 2001/07/31 22:55:45 $\n"); + puts("$Revision: 1.230 $ $Date: 2001/08/04 00:14:43 $\n"); } /* |