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Overview
| Comment: | Merge updates from trunk. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | winHdr |
| Files: | files | file ages | folders |
| SHA1: |
a3cfd81339267c87db511cedf35ec209 |
| User & Date: | mistachkin 2014-05-05 17:45:44.495 |
Context
|
2014-05-05
| ||
| 18:24 | Centralize and reform use of the Win32 related include files. (check-in: 857f2baf9b user: mistachkin tags: winHdr) | |
| 17:45 | Merge updates from trunk. (check-in: a3cfd81339 user: mistachkin tags: winHdr) | |
| 17:43 | Fix several header file comments. No changes to code. (check-in: dd6eb5d1eb user: mistachkin tags: winHdr) | |
|
2014-05-02
| ||
| 22:39 | Enhance the Win32 VFS I/O retry logic. (check-in: 4760504396 user: mistachkin tags: trunk) | |
Changes
Changes to src/os_win.c.
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#endif
#ifndef SQLITE_WIN32_IOERR_RETRY_DELAY
# define SQLITE_WIN32_IOERR_RETRY_DELAY 25
#endif
static int winIoerrRetry = SQLITE_WIN32_IOERR_RETRY;
static int winIoerrRetryDelay = SQLITE_WIN32_IOERR_RETRY_DELAY;
/*
** If a ReadFile() or WriteFile() error occurs, invoke this routine
** to see if it should be retried. Return TRUE to retry. Return FALSE
** to give up with an error.
*/
static int winRetryIoerr(int *pnRetry, DWORD *pError){
DWORD e = osGetLastError();
if( *pnRetry>=winIoerrRetry ){
if( pError ){
*pError = e;
}
return 0;
}
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#endif
#ifndef SQLITE_WIN32_IOERR_RETRY_DELAY
# define SQLITE_WIN32_IOERR_RETRY_DELAY 25
#endif
static int winIoerrRetry = SQLITE_WIN32_IOERR_RETRY;
static int winIoerrRetryDelay = SQLITE_WIN32_IOERR_RETRY_DELAY;
/*
** The "winIoerrCanRetry1" macro is used to determine if a particular I/O
** error code obtained via GetLastError() is eligible to be retried. It
** must accept the error code DWORD as its only argument and should return
** non-zero if the error code is transient in nature and the operation
** responsible for generating the original error might succeed upon being
** retried. The argument to this macro should be a variable.
**
** Additionally, a macro named "winIoerrCanRetry2" may be defined. If it
** is defined, it will be consulted only when the macro "winIoerrCanRetry1"
** returns zero. The "winIoerrCanRetry2" macro is completely optional and
** may be used to include additional error codes in the set that should
** result in the failing I/O operation being retried by the caller. If
** defined, the "winIoerrCanRetry2" macro must exhibit external semantics
** identical to those of the "winIoerrCanRetry1" macro.
*/
#if !defined(winIoerrCanRetry1)
#define winIoerrCanRetry1(a) (((a)==ERROR_ACCESS_DENIED) || \
((a)==ERROR_SHARING_VIOLATION) || \
((a)==ERROR_LOCK_VIOLATION) || \
((a)==ERROR_DEV_NOT_EXIST) || \
((a)==ERROR_NETNAME_DELETED) || \
((a)==ERROR_SEM_TIMEOUT) || \
((a)==ERROR_NETWORK_UNREACHABLE))
#endif
/*
** If a ReadFile() or WriteFile() error occurs, invoke this routine
** to see if it should be retried. Return TRUE to retry. Return FALSE
** to give up with an error.
*/
static int winRetryIoerr(int *pnRetry, DWORD *pError){
DWORD e = osGetLastError();
if( *pnRetry>=winIoerrRetry ){
if( pError ){
*pError = e;
}
return 0;
}
if( winIoerrCanRetry1(e) ){
sqlite3_win32_sleep(winIoerrRetryDelay*(1+*pnRetry));
++*pnRetry;
return 1;
}
#if defined(winIoerrCanRetry2)
else if( winIoerrCanRetry2(e) ){
sqlite3_win32_sleep(winIoerrRetryDelay*(1+*pnRetry));
++*pnRetry;
return 1;
}
#endif
if( pError ){
*pError = e;
}
return 0;
}
/*
|
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