index 671e0644d7c1ead00908eb2c985c92146211ac91..4d7eee8897cce4ae9d04550a7bc314e5ca9da981 100644 (file)
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.376 2004年03月23日 01:23:48 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.377 2004年03月24日 04:04:51 momjian Exp $
*
* NOTES
*
errno = save_errno;
}
+
+#ifdef WIN32
+/*
+ * On WIN32, we cannot use socket functions inside
+ * an APC (signal handler). If we do, select() will return
+ * with incorrect return values, causing the postmaster to
+ * enter a blocking accept(). We work around this by
+ * running it on a separate thread. We still block the main
+ * thread until it is done, so we don't scribble over any
+ * data from the wrong thread (pgstat functions aqre not
+ * thread safe).
+ */
+static DWORD WINAPI win32_pgstat_beterm_thread(LPVOID param)
+{
+ pgstat_beterm((int)param);
+ return 0;
+}
+
+static void win32_pgstat_beterm(int pid) {
+ HANDLE beterm_thread = CreateThread(NULL, 64*1024, win32_pgstat_beterm_thread, (LPVOID)pid, 0, NULL);
+ if (!beterm_thread)
+ ereport(FATAL,
+ (errmsg_internal("failed to create beterm sender thread: %i", (int)GetLastError())));
+ if (WaitForSingleObject(beterm_thread,INFINITE) != WAIT_OBJECT_0)
+ ereport(FATAL,
+ (errmsg_internal("failed to wait for beterm sender thread: %i", (int)GetLastError())));
+ CloseHandle(beterm_thread);
+}
+#endif
+
/*
* CleanupProc -- cleanup after terminated backend.
*
else if (pid == BgWriterPID)
BgWriterPID = 0;
else
+#ifndef WIN32
pgstat_beterm(pid);
+#else
+ win32_pgstat_beterm(pid);
+#endif
return;
}