Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Strengthen the implementations of xShmMemoryBarrier on both the unix and windows VFSes, so that they likely work even if SQLITE_THREADSAFE=0 is used. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
c6ab807b72ddfc1462f61aa91442b6fa |
| User & Date: | drh 2015-09-24 12:40:43.573 |
Context
|
2015-09-24
| ||
| 17:38 | Fix over-length source code lines in where.c. No logic changes. (check-in: 1c8c5380a8 user: drh tags: trunk) | |
| 15:17 | Merge all recent trunk enhancements and fixes into the begin-concurrent branch. (check-in: c63c1e15f8 user: drh tags: begin-concurrent) | |
| 15:06 | Merge trunk changes into the cursor-hints branch. (check-in: fbe637620f user: drh tags: cursor-hints) | |
| 14:43 | Merge recent trunk enhancements into the apple-osx branch. (check-in: 4dd06d8ba1 user: drh tags: apple-osx) | |
| 14:26 | Merge all the latest trunk enhancements into the sessions branch. (check-in: c91065f8ed user: drh tags: sessions) | |
| 12:40 | Strengthen the implementations of xShmMemoryBarrier on both the unix and windows VFSes, so that they likely work even if SQLITE_THREADSAFE=0 is used. (check-in: c6ab807b72 user: drh tags: trunk) | |
| 12:19 | Make sure joins work correctly when both sides of the join are connected using indexed expressions. (check-in: c2fcb03299 user: drh tags: trunk) | |
Changes
Changes to src/os_unix.c.
| ︙ | ︙ | |||
4656 4657 4658 4659 4660 4661 4662 |
** All loads and stores begun before the barrier must complete before
** any load or store begun after the barrier.
*/
static void unixShmBarrier(
sqlite3_file *fd /* Database file holding the shared memory */
){
UNUSED_PARAMETER(fd);
| > | | 4656 4657 4658 4659 4660 4661 4662 4663 4664 4665 4666 4667 4668 4669 4670 4671 |
** All loads and stores begun before the barrier must complete before
** any load or store begun after the barrier.
*/
static void unixShmBarrier(
sqlite3_file *fd /* Database file holding the shared memory */
){
UNUSED_PARAMETER(fd);
sqlite3MemoryBarrier(); /* compiler-defined memory barrier */
unixEnterMutex(); /* Also mutex, for redundancy */
unixLeaveMutex();
}
/*
** Close a connection to shared-memory. Delete the underlying
** storage if deleteFlag is true.
**
|
| ︙ | ︙ |
Changes to src/os_win.c.
| ︙ | ︙ | |||
3846 3847 3848 3849 3850 3851 3852 |
** All loads and stores begun before the barrier must complete before
** any load or store begun after the barrier.
*/
static void winShmBarrier(
sqlite3_file *fd /* Database holding the shared memory */
){
UNUSED_PARAMETER(fd);
| | | | 3846 3847 3848 3849 3850 3851 3852 3853 3854 3855 3856 3857 3858 3859 3860 3861 |
** All loads and stores begun before the barrier must complete before
** any load or store begun after the barrier.
*/
static void winShmBarrier(
sqlite3_file *fd /* Database holding the shared memory */
){
UNUSED_PARAMETER(fd);
sqlite3MemoryBarrier(); /* compiler-defined memory barrier */
winShmEnterMutex(); /* Also mutex, for redundancy */
winShmLeaveMutex();
}
/*
** This function is called to obtain a pointer to region iRegion of the
** shared-memory associated with the database file fd. Shared-memory regions
** are numbered starting from zero. Each shared-memory region is szRegion
|
| ︙ | ︙ |