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Add files to do read I/O on the cluster directory:

Browse Source 
pg_stat_file()
	pg_read_file()
	pg_ls_dir()
	pg_reload_conf()
	pg_rotate_logfile()

Dave Page
Andreas Pflug
This commit is contained in:
Bruce Momjian
2005-08-12 03:25:13 +00:00
parent d95886e734
commit b609695b7a
9 changed files with 485 additions and 15 deletions
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16
src/backend/postmaster/syslogger.c
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@ -18,7 +18,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/postmaster/syslogger.c,v 1.18 2005/07/21 18:06:12 momjian Exp $
* $PostgreSQL: pgsql/src/backend/postmaster/syslogger.c,v 1.19 2005/08/12 03:23:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -101,6 +101,7 @@ static CRITICAL_SECTION sysfileSection;
* Flags set by interrupt handlers for later service in the main loop.
*/
static volatile sig_atomic_t got_SIGHUP = false;
static volatile sig_atomic_t rotation_requested = false;
/* Local subroutines */
@ -117,6 +118,7 @@ static void logfile_rotate(bool time_based_rotation);
static char *logfile_getname(pg_time_t timestamp);
static void set_next_rotation_time(void);
static void sigHupHandler(SIGNAL_ARGS);
static void sigUsr1Handler(SIGNAL_ARGS);
/*
@ -200,7 +202,7 @@ SysLoggerMain(int argc, char *argv[])
pqsignal(SIGQUIT, SIG_IGN);
pqsignal(SIGALRM, SIG_IGN);
pqsignal(SIGPIPE, SIG_IGN);
pqsignal(SIGUSR1, SIG_IGN);
pqsignal(SIGUSR1, sigUsr1Handler); /* request log rotation */
pqsignal(SIGUSR2, SIG_IGN);
/*
@ -235,7 +237,6 @@ SysLoggerMain(int argc, char *argv[])
/* main worker loop */
for (;;)
{
bool rotation_requested = false;
bool time_based_rotation = false;
#ifndef WIN32
@ -726,6 +727,8 @@ logfile_rotate(bool time_based_rotation)
char *filename;
FILE *fh;
rotation_requested = false;
/*
* When doing a time-based rotation, invent the new logfile name based
* on the planned rotation time, not current time, to avoid "slippage"
@ -876,3 +879,10 @@ sigHupHandler(SIGNAL_ARGS)
{
got_SIGHUP = true;
}
/* SIGUSR1: set flag to rotate logfile */
static void
sigUsr1Handler(SIGNAL_ARGS)
{
rotation_requested = true;
}