*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/utils/error/elog.c,v 1.85 2001/06/02 18:25:17 petere Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/error/elog.c,v 1.86 2001/06/08 21:16:48 petere Exp $
*
*-------------------------------------------------------------------------
*/
#include <time.h>
#include <fcntl.h>
-#ifndef O_RDONLY
-#include <sys/file.h>
-#endif /* O_RDONLY */
#include <sys/types.h>
#include <errno.h>
#include <unistd.h>
#include "mb/pg_wchar.h"
#endif
-extern int errno;
-
-extern CommandDest whereToSendOutput;
-
#ifdef ENABLE_SYSLOG
/*
* 0 = only stdout/stderr
static const char *print_timestamp(void);
static const char *print_pid(void);
+static void send_notice_to_frontend(const char *msg);
+static void send_error_to_frontend(const char *msg);
+static const char *useful_strerror(int errnum);
+static const char *elog_message_prefix(int lev);
+
static int Debugfile = -1;
-static int ElogDebugIndentLevel = 0;
+
/*--------------------
* elog
char *fmt_buf = fmt_fixedbuf;
char *msg_buf = msg_fixedbuf;
- /* this buffer is only used for strange values of lev: */
- char prefix_buf[32];
+ /* for COPY line numbers */
+ char copylineno_buf[32];
- /* this buffer is only used if errno has a bogus value: */
- char errorstr_buf[32];
const char *errorstr;
const char *prefix;
const char *cp;
char *bp;
- int indent = 0;
- int space_needed;
- int len;
+ size_t space_needed;
/* size of the prefix needed for timestamp and pid, if enabled */
size_t timestamp_size;
- if (lev <= DEBUG && Debugfile < 0)
- return; /* ignore debug msgs if noplace to send */
+ /* ignore debug msgs if noplace to send */
+ if (lev == DEBUG && Debugfile < 0)
+ return;
/* Save error str before calling any function that might change errno */
- errorstr = strerror(errno);
+ errorstr = useful_strerror(errno);
/*
- * Some strerror()s return an empty string for out-of-range errno.
- * This is ANSI C spec compliant, but not exactly useful.
+ * Convert initialization errors into fatal errors. This is
+ * probably redundant, because Warn_restart_ready won't be set
+ * anyway.
*/
- if (errorstr == NULL || *errorstr == '\0')
- {
- sprintf(errorstr_buf, "error %d", errno);
- errorstr = errorstr_buf;
- }
+ if (lev == ERROR && IsInitProcessingMode())
+ lev = FATAL;
+ /*
+ * If we are inside a critical section, all errors become
+ * REALLYFATAL errors. See miscadmin.h.
+ */
if (lev == ERROR || lev == FATAL)
{
-
- /*
- * Convert initialization errors into fatal errors. This is
- * probably redundant, because Warn_restart_ready won't be set
- * anyway...
- */
- if (IsInitProcessingMode())
- lev = FATAL;
-
- /*
- * If we are inside a critical section, all errors become STOP
- * errors. See miscadmin.h.
- */
if (CritSectionCount > 0)
- lev = STOP;
+ lev = REALLYFATAL;
}
- /* choose message prefix and indent level */
- switch (lev)
- {
- case NOIND:
- indent = ElogDebugIndentLevel - 1;
- if (indent < 0)
- indent = 0;
- if (indent > 30)
- indent = indent % 30;
- prefix = "DEBUG: ";
- break;
- case DEBUG:
- indent = ElogDebugIndentLevel;
- if (indent < 0)
- indent = 0;
- if (indent > 30)
- indent = indent % 30;
- prefix = "DEBUG: ";
- break;
- case NOTICE:
- prefix = "NOTICE: ";
- break;
- case ERROR:
- prefix = "ERROR: ";
- break;
- default:
- sprintf(prefix_buf, "FATAL %d: ", lev);
- prefix = prefix_buf;
- break;
- }
+ prefix = elog_message_prefix(lev);
timestamp_size = 0;
if (Log_timestamp)
* vsnprintf won't know what to do with %m). To keep space
* calculation simple, we only allow one %m.
*/
- space_needed = timestamp_size + strlen(prefix) + indent + (lineno ? 24 : 0)
+ space_needed = timestamp_size + strlen(prefix)
+ strlen(fmt) + strlen(errorstr) + 1;
- if (space_needed > (int) sizeof(fmt_fixedbuf))
+
+ if (copy_lineno)
+ {
+ /* translator: This string will be truncated at 31 characters. */
+ snprintf(copylineno_buf, 32, gettext("copy: line %d, "), copy_lineno);
+ space_needed += strlen(copylineno_buf);
+ }
+
+ if (space_needed > sizeof(fmt_fixedbuf))
{
- fmt_buf = (char *) malloc(space_needed);
+ fmt_buf = malloc(space_needed);
if (fmt_buf == NULL)
{
/* We're up against it, convert to out-of-memory error */
fmt_buf = fmt_fixedbuf;
- if (lev < FATAL)
+ if (lev != FATAL && lev != REALLYFATAL)
{
lev = ERROR;
- prefix = "ERROR: ";
+ prefix = elog_message_prefix(lev);
}
- fmt = "elog: out of memory"; /* this must fit in
- * fmt_fixedbuf! */
+ /*
+ * gettext doesn't allocate memory, except in the very
+ * first call (which this isn't), so it's safe to
+ * translate here. Worst case we get the untranslated
+ * string back.
+ */
+ /* translator: This must fit in fmt_fixedbuf. */
+ fmt = gettext("elog: out of memory");
}
}
strcat(fmt_buf, prefix);
- bp = fmt_buf + strlen(fmt_buf);
- while (indent-- > 0)
- *bp++ = ' ';
-
/* If error was in CopyFrom() print the offending line number -- dz */
- if (lineno)
+ if (copy_lineno)
{
- sprintf(bp, "copy: line %d, ", lineno);
- bp += strlen(bp);
- if (lev == ERROR || lev >= FATAL)
- lineno = 0;
+ strcat(fmt_buf, copylineno_buf);
+ if (lev == ERROR || lev == FATAL || lev == REALLYFATAL)
+ copy_lineno = 0;
}
+ bp = fmt_buf + strlen(fmt_buf);
+
for (cp = fmt; *cp; cp++)
{
if (cp[0] == '%' && cp[1] != '\0')
{
if (cp[1] == 'm')
{
-
/*
* XXX If there are any %'s in errorstr then vsnprintf
* will do the Wrong Thing; do we need to cope? Seems
if (msg_buf != msg_fixedbuf)
free(msg_buf);
space_needed *= 2;
- msg_buf = (char *) malloc(space_needed);
+ msg_buf = malloc(space_needed);
if (msg_buf == NULL)
{
/* We're up against it, convert to out-of-memory error */
msg_buf = msg_fixedbuf;
- if (lev < FATAL)
+ if (lev != FATAL && lev != REALLYFATAL)
{
lev = ERROR;
- prefix = "ERROR: ";
+ prefix = elog_message_prefix(lev);
}
msg_buf[0] = '\0';
if (Log_timestamp)
if (Log_pid)
strcat(msg_buf, print_pid());
strcat(msg_buf, prefix);
- strcat(msg_buf, "elog: out of memory");
+ strcat(msg_buf, gettext("elog: out of memory"));
break;
}
}
switch (lev)
{
- case NOIND:
- syslog_level = LOG_DEBUG;
- break;
case DEBUG:
syslog_level = LOG_DEBUG;
break;
case REALLYFATAL:
default:
syslog_level = LOG_CRIT;
+ break;
}
write_syslog(syslog_level, msg_buf + timestamp_size);
}
-#endif /* ENABLE_SYSLOG */
+#endif /* ENABLE_SYSLOG */
/* syslog doesn't want a trailing newline, but other destinations do */
strcat(msg_buf, "\n");
- len = strlen(msg_buf);
-
/* Write to debug file, if open and enabled */
/* NOTE: debug file is typically pointed at stderr */
if (Debugfile >= 0 && Use_syslog <= 1)
- write(Debugfile, msg_buf, len);
+ write(Debugfile, msg_buf, strlen(msg_buf));
if (lev > DEBUG && whereToSendOutput == Remote)
{
/* Send IPC message to the front-end program */
MemoryContext oldcxt;
- char msgtype;
/*
* Since backend libpq may call palloc(), switch to a context
oldcxt = MemoryContextSwitchTo(ErrorContext);
if (lev == NOTICE)
- msgtype = 'N';
+ /* exclude the timestamp from msg sent to frontend */
+ send_notice_to_frontend(msg_buf + timestamp_size);
else
{
-
/*
* Abort any COPY OUT in progress when an error is detected.
* This hack is necessary because of poor design of copy
* protocol.
*/
pq_endcopyout(true);
- msgtype = 'E';
+ send_error_to_frontend(msg_buf + timestamp_size);
}
- /* exclude the timestamp from msg sent to frontend */
- pq_puttextmessage(msgtype, msg_buf + timestamp_size);
-
- /*
- * This flush is normally not necessary, since postgres.c will
- * flush out waiting data when control returns to the main loop.
- * But it seems best to leave it here, so that the client has some
- * clue what happened if the backend dies before getting back to
- * the main loop ... error/notice messages should not be a
- * performance-critical path anyway, so an extra flush won't hurt
- * much ...
- */
- pq_flush();
MemoryContextSwitchTo(oldcxt);
}
if (lev > DEBUG && whereToSendOutput != Remote)
{
-
/*
* We are running as an interactive backend, so just send the
* message to stderr. But don't send a duplicate if Debugfile
*/
if (lev == FATAL || !Warn_restart_ready || proc_exit_inprogress)
{
-
/*
* fflush here is just to improve the odds that we get to see
* the error message, in case things are so hosed that
*/
fflush(stdout);
fflush(stderr);
- proc_exit((int) (proc_exit_inprogress || !IsUnderPostmaster));
+ proc_exit(proc_exit_inprogress || !IsUnderPostmaster);
}
/*
siglongjmp(Warn_restart, 1);
}
- if (lev > FATAL)
+ if (lev == FATAL || lev == REALLYFATAL)
{
-
/*
* Serious crash time. Postmaster will observe nonzero process
* exit status and kill the other backends too.
/* We reach here if lev <= NOTICE. OK to return to caller. */
}
+
int
DebugFileOpen(void)
{
istty;
Debugfile = -1;
- ElogDebugIndentLevel = 0;
if (OutputFileName[0])
{
-
/*
* A debug-output file name was given.
*
}
}
-#endif /* ENABLE_SYSLOG */
+#endif /* ENABLE_SYSLOG */
+
+
+
+static void
+send_notice_or_error_to_frontend(int type, const char *msg);
+
+
+static void
+send_notice_to_frontend(const char *msg)
+{
+ send_notice_or_error_to_frontend(NOTICE, msg);
+}
+
+
+static void
+send_error_to_frontend(const char *msg)
+{
+ send_notice_or_error_to_frontend(ERROR, msg);
+}
+
+
+static void
+send_notice_or_error_to_frontend(int type, const char *msg)
+{
+ StringInfo buf;
+
+ AssertArg(type == NOTICE || type == ERROR);
+
+ buf = makeStringInfo();
+
+ pq_beginmessage(buf);
+ pq_sendbyte(buf, type == NOTICE ? 'N' : 'E');
+ pq_sendstring(buf, msg);
+ pq_endmessage(buf);
+
+ pfree(buf);
+ /*
+ * This flush is normally not necessary, since postgres.c will
+ * flush out waiting data when control returns to the main loop.
+ * But it seems best to leave it here, so that the client has some
+ * clue what happened if the backend dies before getting back to
+ * the main loop ... error/notice messages should not be a
+ * performance-critical path anyway, so an extra flush won't hurt
+ * much ...
+ */
+ pq_flush();
+}
+
+
+static const char *useful_strerror(int errnum)
+{
+ /* this buffer is only used if errno has a bogus value */
+ static char errorstr_buf[48];
+ char *str;
+
+ str = strerror(errnum);
+
+ /*
+ * Some strerror()s return an empty string for out-of-range errno.
+ * This is ANSI C spec compliant, but not exactly useful.
+ */
+ if (str == NULL || *str == '\0')
+ {
+ /* translator: This string will be truncated at 47 characters expanded. */
+ snprintf(errorstr_buf, 48, gettext("operating system error %d"), errnum);
+ str = errorstr_buf;
+ }
+
+ return str;
+}
+
+
+
+static const char *
+elog_message_prefix(int lev)
+{
+ const char * prefix = NULL;
+
+ switch (lev)
+ {
+ case DEBUG:
+ prefix = gettext("DEBUG: ");
+ break;
+ case NOTICE:
+ prefix = gettext("NOTICE: ");
+ break;
+ case ERROR:
+ prefix = gettext("ERROR: ");
+ break;
+ case FATAL:
+ prefix = gettext("FATAL 1: ");
+ break;
+ case REALLYFATAL:
+ prefix = gettext("FATAL 2: ");
+ break;
+ }
+
+ Assert(prefix != NULL);
+ return prefix;
+}
OSDN Git Service
