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Here's the latest win32 signals code, this time in the form of a patch

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against the latest shapshot. It also includes the replacement of kill()
with pqkill() and sigsetmask() with pqsigsetmask().

Passes all tests fine on my linux machine once applied. Still doesn't
link completely on Win32 - there are a few things still required. But
much closer than before.

At Bruce's request, I'm goint to write up a README file about the method
of signals delivery chosen and why the others were rejected (basically a
summary of the mailinglist discussions). I'll finish that up once/if the
patch is accepted.


Magnus Hagander
This commit is contained in:
Bruce Momjian
2004-01-27 00:45:26 +00:00
parent eec08b95e7
commit 50491963cb
10 changed files with 404 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
src/backend/postmaster/postmaster.c
View File

@@ -37,7 +37,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.362 2004/01/26 22:59:53 momjian Exp $
* $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.363 2004/01/27 00:45:26 momjian Exp $
*
* NOTES
*
@@ -1566,7 +1566,7 @@ processCancelRequest(Port *port, void *pkt)
ereport(DEBUG2,
(errmsg_internal("processing cancel request: sending SIGINT to process %d",
backendPID)));
kill(bp->pid, SIGINT);
pqkill(bp->pid, SIGINT);
}
else
/* Right PID, wrong key: no way, Jose */
@@ -1738,7 +1738,7 @@ SIGHUP_handler(SIGNAL_ARGS)
* will start a new one with a possibly changed config
*/
if (BgWriterPID != 0)
kill(BgWriterPID, SIGTERM);
pqkill(BgWriterPID, SIGTERM);
}
PG_SETMASK(&UnBlockSig);
@@ -1772,7 +1772,7 @@ pmdie(SIGNAL_ARGS)
* Wait for children to end their work and ShutdownDataBase.
*/
if (BgWriterPID != 0)
kill(BgWriterPID, SIGTERM);
pqkill(BgWriterPID, SIGTERM);
if (Shutdown >= SmartShutdown)
break;
Shutdown = SmartShutdown;
@@ -1806,7 +1806,7 @@ pmdie(SIGNAL_ARGS)
* and exit) and ShutdownDataBase when they are gone.
*/
if (BgWriterPID != 0)
kill(BgWriterPID, SIGTERM);
pqkill(BgWriterPID, SIGTERM);
if (Shutdown >= FastShutdown)
break;
ereport(LOG,
@@ -1854,13 +1854,13 @@ pmdie(SIGNAL_ARGS)
* properly shutdown data base system.
*/
if (BgWriterPID != 0)
kill(BgWriterPID, SIGQUIT);
pqkill(BgWriterPID, SIGQUIT);
ereport(LOG,
(errmsg("received immediate shutdown request")));
if (ShutdownPID > 0)
kill(ShutdownPID, SIGQUIT);
pqkill(ShutdownPID, SIGQUIT);
if (StartupPID > 0)
kill(StartupPID, SIGQUIT);
pqkill(StartupPID, SIGQUIT);
if (DLGetHead(BackendList))
SignalChildren(SIGQUIT);
ExitPostmaster(0);
@@ -2130,7 +2130,7 @@ CleanupProc(int pid,
(errmsg_internal("sending %s to process %d",
(SendStop ? "SIGSTOP" : "SIGQUIT"),
(int) bp->pid)));
kill(bp->pid, (SendStop ? SIGSTOP : SIGQUIT));
pqkill(bp->pid, (SendStop ? SIGSTOP : SIGQUIT));
}
}
else
@@ -2225,7 +2225,7 @@ SignalChildren(int signal)
(errmsg_internal("sending signal %d to process %d",
signal,
(int) bp->pid)));
kill(bp->pid, signal);
pqkill(bp->pid, signal);
}
curr = next;