From dd809b087f91fd906ba701da8487254eb16a8db0 Mon Sep 17 00:00:00 2001
From: drh <drh@noemail.net>
Date: Sat, 17 Jul 2004 21:44:57 +0000
Subject: [PATCH] Use the F_FULLFSYNC fctrl if it is available.  Record the
 name of files that are opened in the OsFile structure. (CVS 1799)

FossilOrigin-Name: 1d30d0dd46c2bd12ce3f7dc06492f3e27ab6bcee
---
 manifest      | 14 +++++++-------
 manifest.uuid |  2 +-
 src/os_unix.c | 21 +++++++++++++++++++--
 src/os_unix.h |  1 +
 4 files changed, 28 insertions(+), 10 deletions(-)

diff --git a/manifest b/manifest
index 457d091739..7f6c58bc25 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Added\stests\sfor\ssqlite3_changes\safter\sa\sDELETE.\s(CVS\s1798)
-D 2004-07-15T20:08:39
+C Use\sthe\sF_FULLFSYNC\sfctrl\sif\sit\sis\savailable.\s\sRecord\sthe\sname\sof\sfiles\nthat\sare\sopened\sin\sthe\sOsFile\sstructure.\s(CVS\s1799)
+D 2004-07-17T21:44:57
 F Makefile.in 77d1219b6563476711a7a962e865979a6f314eb0
 F Makefile.linux-gcc a9e5a0d309fa7c38e7c14d3ecf7690879d3a5457
 F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@@ -46,8 +46,8 @@ F src/os_mac.c 3d31e26be1411acfb7961033098631b4f3486fdf
 F src/os_mac.h 51d2445f47e182ed32d3bd6937f81070c6fd9bd4
 F src/os_test.c 6bf10100de2ca199a91fe7ac6474561c8a7166ae
 F src/os_test.h 6a26a4978492e4bbdbf385554958418ff02db162
-F src/os_unix.c 7df6ae05faa5b84164193d3694cb71b66661bbf3
-F src/os_unix.h 00c1f82b526ab2fb7ee5ddd555ea4ed68363c93a
+F src/os_unix.c 7dca8d07ac1d6e2b589eda6d536a4d143160a0f3
+F src/os_unix.h c3ee271744327d156a9e016dff965adebadffdfb
 F src/os_win.c 54181eb73cb4783c4241feca9eaa490768b39008
 F src/os_win.h babd4e912967c6b09088cfe38a45e8005a07ba44
 F src/pager.c 5f8cdc92ee9efb5a7849dc8b561b53122b700c78
@@ -233,7 +233,7 @@ F www/tclsqlite.tcl 19191cf2a1010eaeff74c51d83fd5f5a4d899075
 F www/vdbe.tcl 59288db1ac5c0616296b26dce071c36cb611dfe9
 F www/version3.tcl 092a01f5ef430d2c4acc0ae558d74c4bb89638a0
 F www/whentouse.tcl a8335bce47cc2fddb07f19052cb0cb4d9129a8e4
-P c44943e6fe0c88830102253591a501dc7d724d2f
-R 6372bb8eea811521fd1d8c72d50b1f51
+P c01f13267f592dc2678e78ea45dadddcdc154f82
+R a9f4dab888d922312d00d87de0e5cb2e
 U drh
-Z 3cb2ad30190c7832bdc46e58738a9e26
+Z d985f788c605dfd4069fa22794ea5ba6
diff --git a/manifest.uuid b/manifest.uuid
index e27a6f831c..d60bbb8ed2 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-c01f13267f592dc2678e78ea45dadddcdc154f82
\ No newline at end of file
+1d30d0dd46c2bd12ce3f7dc06492f3e27ab6bcee
\ No newline at end of file
diff --git a/src/os_unix.c b/src/os_unix.c
index d6dede920c..7bd9ded3fb 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -654,6 +654,22 @@ int sqlite3OsSeek(OsFile *id, off_t offset){
   return SQLITE_OK;
 }
 
+/*
+** The fsync() system call does not work as advertised on many
+** unix systems.  The following procedure is an attempt to make
+** it work better.
+*/
+static int full_fsync(int fd){
+  int rc;
+#ifdef F_FULLFSYNC
+  rc = fcntl(fd, F_FULLFSYNC, 0);
+  if( rc ) rc = fsync(fd);
+#else
+  rc = fsync(fd);
+#endif
+  return rc;
+}
+
 /*
 ** Make sure all writes to a particular file are committed to disk.
 **
@@ -669,12 +685,12 @@ int sqlite3OsSync(OsFile *id){
   assert( id->isOpen );
   SimulateIOError(SQLITE_IOERR);
   TRACE2("SYNC    %-3d\n", id->h);
-  if( fsync(id->h) ){
+  if( full_fsync(id->h) ){
     return SQLITE_IOERR;
   }
   if( id->dirfd>=0 ){
     TRACE2("DIRSYNC %-3d\n", id->dirfd);
-    fsync(id->dirfd);
+    full_fsync(id->dirfd);
     close(id->dirfd);  /* Only need to sync once, so close the directory */
     id->dirfd = -1;    /* when we are done. */
   }
@@ -1057,6 +1073,7 @@ int sqlite3OsUnlock(OsFile *id, int locktype){
 */
 int sqlite3OsClose(OsFile *id){
   if( !id->isOpen ) return SQLITE_OK;
+  id->zFilename = 0;
   sqlite3OsUnlock(id, NO_LOCK);
   if( id->dirfd>=0 ) close(id->dirfd);
   id->dirfd = -1;
diff --git a/src/os_unix.h b/src/os_unix.h
index ae16a9ac64..9e11e4c929 100644
--- a/src/os_unix.h
+++ b/src/os_unix.h
@@ -65,6 +65,7 @@ struct OsFile {
   struct openCnt *pOpen;    /* Info about all open fd's on this inode */
   struct lockInfo *pLock;   /* Info about locks on this inode */
   int h;                    /* The file descriptor */
+  const char *zFilename;    /* Name passed to open() */
   unsigned char locktype;   /* The type of lock held on this fd */
   unsigned char isOpen;     /* True if needs to be closed */
   int dirfd;                /* File descriptor for the directory */
-- 
2.47.3