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authordanielk1977 <danielk1977@noemail.net>2009-03-30 07:39:35 +0000
committerdanielk1977 <danielk1977@noemail.net>2009-03-30 07:39:35 +0000
commit64a54c52fe5ba8e7f373ececc7a9d2e68f352a08 (patch)
tree183bd2fb8879711e0cf2ce41f3e65a0774e2c74b
parentf9e749cbbacb560cd1f265cf68a76addf3f3139a (diff)
downloadsqlite-64a54c52fe5ba8e7f373ececc7a9d2e68f352a08.tar.gz
sqlite-64a54c52fe5ba8e7f373ececc7a9d2e68f352a08.zip
Another change related to (6401) and (6402): When an attempt to unlock a file fails in os_unix.c, close all files held open waiting for the unlock event anyway.
This prevents a file-descriptor leak when testing IO errors. (CVS 6406) FossilOrigin-Name: 50fbcdea045f7d4266d9afa721616c720564aa93
-rw-r--r--manifest14
-rw-r--r--manifest.uuid2
-rw-r--r--src/os_unix.c50
3 files changed, 33 insertions, 33 deletions
diff --git a/manifest b/manifest
index 3ec35769b..166a3ea45 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Add\sa\scomment\sto\sthe\sdoubleToInt64()\sroutine\sthat\sexplains\swhy\sreturning\nminInt\sis\sin\sfact\scorrect\swhen\sit\sseems\slike\smaxInt\sshould\sbe\sreturned.\s(CVS\s6405)
-D 2009-03-29T15:12:10
+C Another\schange\srelated\sto\s(6401)\sand\s(6402):\sWhen\san\sattempt\sto\sunlock\sa\sfile\sfails\sin\sos_unix.c,\sclose\sall\sfiles\sheld\sopen\swaiting\sfor\sthe\sunlock\sevent\sanyway.\n\sThis\sprevents\sa\sfile-descriptor\sleak\swhen\stesting\sIO\serrors.\s(CVS\s6406)
+D 2009-03-30T07:39:35
F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
F Makefile.in 583e87706abc3026960ed759aff6371faf84c211
F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -141,7 +141,7 @@ F src/os.c c2aa4a7d8bb845222e5c37f56cde377b20c3b087
F src/os.h fa3f4aa0119ff721a2da4b47ffd74406ac864c05
F src/os_common.h 8c61457df58f1a4bd5f5adc3e90e01b37bf7afbc
F src/os_os2.c bed77dc26e3a95ce4a204936b9a1ca6fe612fcc5
-F src/os_unix.c b62e660f82f4aa37d68ff4ffb11673ee4c75e1c9
+F src/os_unix.c 5d667f24615043c937a138faaed5f3e93b8619b0
F src/os_win.c 40636702058ed4dcd35d68151bfab56d4997cdc1
F src/pager.c 7a2b4b118708de09e580de66d46e51c1b655f76a
F src/pager.h 0c9f3520c00d8a3b8e792ca56c9a11b6b02b4b0f
@@ -711,7 +711,7 @@ F tool/speedtest16.c c8a9c793df96db7e4933f0852abb7a03d48f2e81
F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
-P b601a57582051184baa37b807b1e18db93313e13
-R b24c431aeaa41c90ffe92c8a76f50df3
-U drh
-Z a18eb87f581c8e08f864572471035b43
+P 7f3be3608542bbc6ac7916e5c3a5436e5f0a552e
+R a9bdb3adde6598714edefb4405572e3f
+U danielk1977
+Z d546563cba82beaa0b71a6d7a5a8a700
diff --git a/manifest.uuid b/manifest.uuid
index 4208d06b9..998bf4b2e 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-7f3be3608542bbc6ac7916e5c3a5436e5f0a552e \ No newline at end of file
+50fbcdea045f7d4266d9afa721616c720564aa93 \ No newline at end of file
diff --git a/src/os_unix.c b/src/os_unix.c
index ddf7b2212..719f16c87 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -43,7 +43,7 @@
** * Definitions of sqlite3_vfs objects for all locking methods
** plus implementations of sqlite3_os_init() and sqlite3_os_end().
**
-** $Id: os_unix.c,v 1.247 2009/03/28 23:47:11 drh Exp $
+** $Id: os_unix.c,v 1.248 2009/03/30 07:39:35 danielk1977 Exp $
*/
#include "sqliteInt.h"
#if SQLITE_OS_UNIX /* This file is used on unix only */
@@ -1459,6 +1459,7 @@ static int unixUnlock(sqlite3_file *id, int locktype){
}
if( locktype==NO_LOCK ){
struct unixOpenCnt *pOpen;
+ int rc2 = SQLITE_OK;
/* Decrement the shared lock counter. Release the lock using an
** OS call only when all threads in this same process have released
@@ -1480,10 +1481,8 @@ static int unixUnlock(sqlite3_file *id, int locktype){
if( IS_LOCK_ERROR(rc) ){
pFile->lastErrno = tErrno;
}
- pLock->cnt = 1;
pLock->locktype = NO_LOCK;
pFile->locktype = NO_LOCK;
- goto end_unlock;
}
}
@@ -1491,30 +1490,31 @@ static int unixUnlock(sqlite3_file *id, int locktype){
** count reaches zero, close any other file descriptors whose close
** was deferred because of outstanding locks.
*/
- if( rc==SQLITE_OK ){
- pOpen = pFile->pOpen;
- pOpen->nLock--;
- assert( pOpen->nLock>=0 );
- if( pOpen->nLock==0 && pOpen->nPending>0 ){
- int i;
- for(i=0; i<pOpen->nPending; i++){
- /* close pending fds, but if closing fails don't free the array
- ** assign -1 to the successfully closed descriptors and record the
- ** error. The next attempt to unlock will try again. */
- if( pOpen->aPending[i] < 0 ) continue;
- if( close(pOpen->aPending[i]) ){
- pFile->lastErrno = errno;
- rc = SQLITE_IOERR_CLOSE;
- }else{
- pOpen->aPending[i] = -1;
- }
- }
- if( rc==SQLITE_OK ){
- sqlite3_free(pOpen->aPending);
- pOpen->nPending = 0;
- pOpen->aPending = 0;
+ pOpen = pFile->pOpen;
+ pOpen->nLock--;
+ assert( pOpen->nLock>=0 );
+ if( pOpen->nLock==0 && pOpen->nPending>0 ){
+ int i;
+ for(i=0; i<pOpen->nPending; i++){
+ /* close pending fds, but if closing fails don't free the array
+ ** assign -1 to the successfully closed descriptors and record the
+ ** error. The next attempt to unlock will try again. */
+ if( pOpen->aPending[i] < 0 ) continue;
+ if( close(pOpen->aPending[i]) ){
+ pFile->lastErrno = errno;
+ rc2 = SQLITE_IOERR_CLOSE;
+ }else{
+ pOpen->aPending[i] = -1;
}
}
+ if( rc2==SQLITE_OK ){
+ sqlite3_free(pOpen->aPending);
+ pOpen->nPending = 0;
+ pOpen->aPending = 0;
+ }
+ }
+ if( rc==SQLITE_OK ){
+ rc = rc2;
}
}