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Revise locking retry semantics in Win32 VFS to abort early if the file handle is reported as invalid.

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FossilOrigin-Name: d43e2e59b5647655595fd953febf2beefa480006
This commit is contained in:
mistachkin 2014-05-28 03:27:42 +00:00
parent ff0bc8f9f7
commit 8e86b6a3df
3 changed files with 18 additions and 7 deletions
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15
manifest
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@ -1,5 +1,5 @@
C Revise\show\sOSTRACE\sreports\slogically\sboolean\sresults\sin\sthe\sWin32\sVFS.
D 2014-05-28T03:23:55.937
C Revise\slocking\sretry\ssemantics\sin\sWin32\sVFS\sto\sabort\searly\sif\sthe\sfile\shandle\sis\sreported\sas\sinvalid.
D 2014-05-28T03:27:42.937
F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
F Makefile.in dd2b1aba364ff9b05de41086f74407f285c57670
F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@ -206,7 +206,7 @@ F src/os.h 60d419395e32a8029fa380a80a3da2e9030f635e
F src/os_common.h 92815ed65f805560b66166e3583470ff94478f04
F src/os_setup.h c9d4553b5aaa6f73391448b265b89bed0b890faa
F src/os_unix.c ae4b5240af4619d711301d7992396e182585269f
F src/os_win.c 648f842876e25391b7c454c8e49f7db1fd981d65
F src/os_win.c a5b9ed90eed522925135f1cc5f0e737a624a6b5c
F src/os_win.h 057344a6720b4c8405d9bd98f58cb37a6ee46c25
F src/pager.c f6bb1fa6cdf2062f2d8aec3e64db302bca519ab8
F src/pager.h ffd5607f7b3e4590b415b007a4382f693334d428
@ -1173,7 +1173,10 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
P b8b66103de8c554cb87df40bf040760ec29f2ae1
R fb2228bf340b8e64476c0b547456f447
P c405f971cf03e29110019ff863cbfb026d97e1e6
R 80dc0ba2eb26692fe89f4430050446dd
T *branch * winLockHandle
T *sym-winLockHandle *
T -sym-trunk *
U mistachkin
Z 33db4268ebdb5368353cf9e380a10aca
Z 89844ed2f261cecaceceb182643fd2e9

2
manifest.uuid
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@ -1 +1 @@
c405f971cf03e29110019ff863cbfb026d97e1e6
d43e2e59b5647655595fd953febf2beefa480006

8
src/os_win.c
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@ -2924,8 +2924,16 @@ static int winLock(sqlite3_file *id, int locktype){
** If you are using this code as a model for alternative VFSes, do not
** copy this retry logic. It is a hack intended for Windows only.
*/
lastErrno = osGetLastError();
OSTRACE(("LOCK-PENDING-FAIL file=%p, count=%d, result=%d\n",
pFile->h, cnt, res));
if( lastErrno==ERROR_INVALID_HANDLE ){
pFile->lastErrno = lastErrno;
rc = SQLITE_IOERR_LOCK;
OSTRACE(("LOCK-FAIL file=%p, count=%d, rc=%s\n",
pFile->h, cnt, sqlite3ErrName(rc)));
return rc;
}
if( cnt ) sqlite3_win32_sleep(1);
}
gotPendingLock = res;