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Overview
| Comment: | Remove an unnecessary memset(). |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: | e7b7f5884a78630c6ba6a217c3624739 |
| User & Date: | drh 2018-02-21 00:48:02 |
Context
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2018-02-21
| ||
| 01:05 | Small performance improvement in sqltie3WalFindFrame(). check-in: 52013cad user: drh tags: trunk | |
| 00:48 | Remove an unnecessary memset(). check-in: e7b7f588 user: drh tags: trunk | |
|
2018-02-20
| ||
| 22:20 | Make the walIndexPage() routine about 3x faster by factoring out the seldom used reallocation logic into a separate subroutine. check-in: e2b10714 user: drh tags: trunk | |
Changes
Changes to src/os_unix.c.
4176 4177 4178 4179 4180 4181 4182 4183 4184 4185 4186 4187 4188 4189 4190 4191 4192 4193 4194 4195 |
assert( n==1 || lockType!=F_RDLCK );
/* Locks are within range */
assert( n>=1 && n<=SQLITE_SHM_NLOCK );
if( pShmNode->h>=0 ){
/* Initialize the locking parameters */
memset(&f, 0, sizeof(f));
f.l_type = lockType;
f.l_whence = SEEK_SET;
f.l_start = ofst;
f.l_len = n;
rc = osFcntl(pShmNode->h, F_SETLK, &f);
rc = (rc!=(-1)) ? SQLITE_OK : SQLITE_BUSY;
}
/* Update the global lock state and do debug tracing */
#ifdef SQLITE_DEBUG
{ u16 mask;
|
< < |
4176 4177 4178 4179 4180 4181 4182 4183 4184 4185 4186 4187 4188 4189 4190 4191 4192 4193 |
assert( n==1 || lockType!=F_RDLCK );
/* Locks are within range */
assert( n>=1 && n<=SQLITE_SHM_NLOCK );
if( pShmNode->h>=0 ){
/* Initialize the locking parameters */
f.l_type = lockType;
f.l_whence = SEEK_SET;
f.l_start = ofst;
f.l_len = n;
rc = osFcntl(pShmNode->h, F_SETLK, &f);
rc = (rc!=(-1)) ? SQLITE_OK : SQLITE_BUSY;
}
/* Update the global lock state and do debug tracing */
#ifdef SQLITE_DEBUG
{ u16 mask;
|