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634. [bug] A log file will completely stop being written when

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it reaches the maximum size in all cases, not just
			when versioning is also enabled. [RT #570]
This commit is contained in:
David Lawrence
2000-12-23 19:23:48 +00:00
parent 9a2574531e
commit f8da2d9583
3 changed files with 44 additions and 14 deletions
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4
CHANGES
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@@ -1,4 +1,8 @@
634. [bug] A log file will completely stop being written when
it reaches the maximum size in all cases, not just
when versioning is also enabled. [RT #570]
633. [port] Cope with rlim_t missing on BSD/OS systems. [RT #575]
--- 9.1.0b2 released ---

3
lib/isc/include/isc/log.h
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@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: log.h,v 1.34 2000/12/12 05:29:33 tale Exp $ */
/* $Id: log.h,v 1.35 2000/12/23 19:23:47 tale Exp $ */
#ifndef ISC_LOG_H
#define ISC_LOG_H 1
@@ -107,6 +107,7 @@ typedef struct isc_logfile {
* to a size large enough for the largest possible file on a system.
*/
isc_offset_t maximum_size;
isc_boolean_t maximum_reached; /* Private. */
} isc_logfile_t;
/*

51
lib/isc/log.c
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@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: log.c,v 1.54 2000/12/12 05:29:31 tale Exp $ */
/* $Id: log.c,v 1.55 2000/12/23 19:23:48 tale Exp $ */
/* Principal Authors: DCL */
@@ -233,11 +233,12 @@ isc_log_doit(isc_log_t *lctx, isc_logcategory_t *category,
* Convenience macros.
*/
#define FACILITY(channel) (channel->destination.facility)
#define FILE_NAME(channel) (channel->destination.file.name)
#define FILE_STREAM(channel) (channel->destination.file.stream)
#define FILE_VERSIONS(channel) (channel->destination.file.versions)
#define FILE_MAXSIZE(channel) (channel->destination.file.maximum_size)
#define FACILITY(channel) (channel->destination.facility)
#define FILE_NAME(channel) (channel->destination.file.name)
#define FILE_STREAM(channel) (channel->destination.file.stream)
#define FILE_VERSIONS(channel) (channel->destination.file.versions)
#define FILE_MAXSIZE(channel) (channel->destination.file.maximum_size)
#define FILE_MAXREACHED(channel) (channel->destination.file.maximum_reached)
/****
**** Public interfaces.
@@ -724,8 +725,9 @@ isc_log_createchannel(isc_logconfig_t *lcfg, const char *name,
FILE_NAME(channel) =
isc_mem_strdup(mctx, destination->file.name);
FILE_STREAM(channel) = NULL;
FILE_MAXSIZE(channel) = destination->file.maximum_size;
FILE_VERSIONS(channel) = destination->file.versions;
FILE_MAXSIZE(channel) = destination->file.maximum_size;
FILE_MAXREACHED(channel) = ISC_FALSE;
break;
case ISC_LOG_TOFILEDESC:
@@ -1588,6 +1590,31 @@ isc_log_doit(isc_log_t *lctx, isc_logcategory_t *category,
switch (channel->type) {
case ISC_LOG_TOFILE:
if (FILE_MAXREACHED(channel)) {
/*
* If the file can be rolled, OR
* If the file no longer exists, OR
* If the file is less than the maximum size,
* (such as if it had been renamed and
* a new one touched, or it was truncated
* in place)
* ... then close it to trigger reopening.
*/
if (FILE_VERSIONS(channel) !=
ISC_LOG_ROLLNEVER ||
(stat(FILE_NAME(channel), &statbuf) != 0 &&
errno == ENOENT) ||
statbuf.st_size < FILE_MAXSIZE(channel)) {
fclose(FILE_STREAM(channel));
FILE_STREAM(channel) = NULL;
FILE_MAXREACHED(channel) = ISC_FALSE;
} else
/*
* Eh, skip it.
*/
break;
}
if (FILE_STREAM(channel) == NULL) {
result = isc_log_open(channel);
if (result != ISC_R_SUCCESS)
@@ -1617,8 +1644,8 @@ isc_log_doit(isc_log_t *lctx, isc_logcategory_t *category,
/*
* If the file now exceeds its maximum size
* threshold, close it and mark it ready
* for reopening the next time the channel is used.
* threshold, note it so that it will not be logged
* to any more.
*/
if (FILE_MAXSIZE(channel) != 0) {
INSIST(channel->type == ISC_LOG_TOFILE);
@@ -1627,10 +1654,8 @@ isc_log_doit(isc_log_t *lctx, isc_logcategory_t *category,
/* XXXDCL complain if fstat fails? */
if (fstat(fileno(FILE_STREAM(channel)),
&statbuf) >= 0 &&
statbuf.st_size > FILE_MAXSIZE(channel)) {
fclose(FILE_STREAM(channel));
FILE_STREAM(channel) = NULL;
}
statbuf.st_size > FILE_MAXSIZE(channel))
FILE_MAXREACHED(channel) = ISC_TRUE;
}
break;