From ededaa59bdc409b7ca5895cae3b8314efb084ebb Mon Sep 17 00:00:00 2001
From: drh <drh@noemail.net>
Date: Fri, 1 Oct 2004 03:02:48 +0000
Subject: [PATCH] Fully release exclusive locks in the Unlock primitive of
 Unix. Ticket #913. (CVS 1993)

FossilOrigin-Name: 11a37a74b101b9e37dcf1c3e57e45fbcd39a1c21
---
 manifest      | 12 ++++++------
 manifest.uuid |  2 +-
 src/os_unix.c |  5 +++++
 3 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/manifest b/manifest
index 9e008b34fd..7717a2a5b6 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Use\stype\si64\sinstead\sof\soff_t\sfor\sfile\soffsets\ssince\soff_t\sis\sgiving\nportability\sproblems.\s\sTicket\s#924.\s(CVS\s1992)
-D 2004-10-01T02:00:31
+C Fully\srelease\sexclusive\slocks\sin\sthe\sUnlock\sprimitive\sof\sUnix.\nTicket\s#913.\s(CVS\s1993)
+D 2004-10-01T03:02:48
 F Makefile.in abdeb5bd9d017822691884935c320037c33f6ee6
 F Makefile.linux-gcc a9e5a0d309fa7c38e7c14d3ecf7690879d3a5457
 F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@@ -47,7 +47,7 @@ F src/os_mac.c 7367dab0c44ab0b2c4337e73ac6f6f97f171c2cb
 F src/os_mac.h 608fdf39eafa1ce25fc8cb223b8b0a073341d4da
 F src/os_test.c d9a21852d170f20adeae6f224d1beba2cb5af8aa
 F src/os_test.h 6a26a4978492e4bbdbf385554958418ff02db162
-F src/os_unix.c 6a02c1bc1d6d73332daaea695116030aebd60c2a
+F src/os_unix.c 8ee13cc8efb47dd3269327f1659f0aa59449e7e0
 F src/os_unix.h f3097815e041e82e24d92505e1ff61ba24172d13
 F src/os_win.c 0ab81ce1e4739e0e251b6aa3e74e1a6b75b612da
 F src/os_win.h 41a946bea10f61c158ce8645e7646b29d44f122b
@@ -247,7 +247,7 @@ F www/tclsqlite.tcl 560ecd6a916b320e59f2917317398f3d59b7cc25
 F www/vdbe.tcl 59288db1ac5c0616296b26dce071c36cb611dfe9
 F www/version3.tcl 092a01f5ef430d2c4acc0ae558d74c4bb89638a0
 F www/whentouse.tcl a8335bce47cc2fddb07f19052cb0cb4d9129a8e4
-P 1d3c6f735101d8fc582871c0370805596d975001
-R 4ac86aa49220b9d9c39284b9bff439d6
+P 8972c004dc825f668d952e7d082a89046b9260f1
+R c18f14c1b88558caba10e1e626c64832
 U drh
-Z 3cafaabb57dd86a72ca0b894aa70f6d5
+Z cf49e4565c24c55963de6fd9ac42f0ce
diff --git a/manifest.uuid b/manifest.uuid
index 75e5efc622..7f9f788547 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-8972c004dc825f668d952e7d082a89046b9260f1
\ No newline at end of file
+11a37a74b101b9e37dcf1c3e57e45fbcd39a1c21
\ No newline at end of file
diff --git a/src/os_unix.c b/src/os_unix.c
index aab518f47c..c0261e1c79 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -1039,6 +1039,11 @@ int sqlite3OsUnlock(OsFile *id, int locktype){
   assert( pLock->cnt!=0 );
   if( id->locktype>SHARED_LOCK ){
     assert( pLock->locktype==id->locktype );
+    lock.l_type = F_RDLCK;
+    lock.l_whence = SEEK_SET;
+    lock.l_start = SHARED_FIRST;
+    lock.l_len = SHARED_SIZE;
+    fcntl(id->h, F_SETLK, &lock);
     lock.l_type = F_UNLCK;
     lock.l_whence = SEEK_SET;
     lock.l_start = PENDING_BYTE;
-- 
2.47.3