Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Fix a mutex leak in the new malloc-free memory allocator. (CVS 4494) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
30f014d3d0231a668c40508ff4a6b90c |
| User & Date: | drh 2007-10-20 12:34:01 |
Context
|
2007-10-20
| ||
| 13:17 | Go back to allocating each page and its header with a single memory allocation. This undoes the change of (4409). (CVS 4495) check-in: f56c9884 user: drh tags: trunk | |
| 12:34 | Fix a mutex leak in the new malloc-free memory allocator. (CVS 4494) check-in: 30f014d3 user: drh tags: trunk | |
|
2007-10-19
| ||
| 17:47 | Added an experimental malloc-free memory allocation subsystem, intended for use on embedded systems. Runs 7% faster than when using system malloc() on Linux. (CVS 4493) check-in: 8487ca82 user: drh tags: trunk | |
Changes
Changes to src/mem3.c.
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
...
543
544
545
546
547
548
549
550
551
552
553
554
555
556
|
** use of malloc(). All dynamically allocatable memory is ** contained in a static array, mem.aPool[]. The size of this ** fixed memory pool is SQLITE_MEMORY_SIZE bytes. ** ** This version of the memory allocation subsystem is used if ** and only if SQLITE_MEMORY_SIZE is defined. ** ** $Id: mem3.c,v 1.1 2007/10/19 17:47:25 drh Exp $ */ /* ** This version of the memory allocator is used only when ** SQLITE_MEMORY_SIZE is defined. */ #if defined(SQLITE_MEMORY_SIZE) ................................................................................ sqlite3MemsysAlarm(nBytes-nOld); } p = internal_malloc(nBytes); if( p==0 ){ sqlite3MemsysAlarm(nBytes); p = internal_malloc(nBytes); if( p==0 ){ return 0; } } if( nOld<nBytes ){ memcpy(p, pPrior, nOld); }else{ memcpy(p, pPrior, nBytes); |
|
>
|
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
...
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
|
** use of malloc(). All dynamically allocatable memory is ** contained in a static array, mem.aPool[]. The size of this ** fixed memory pool is SQLITE_MEMORY_SIZE bytes. ** ** This version of the memory allocation subsystem is used if ** and only if SQLITE_MEMORY_SIZE is defined. ** ** $Id: mem3.c,v 1.2 2007/10/20 12:34:01 drh Exp $ */ /* ** This version of the memory allocator is used only when ** SQLITE_MEMORY_SIZE is defined. */ #if defined(SQLITE_MEMORY_SIZE) ................................................................................ sqlite3MemsysAlarm(nBytes-nOld); } p = internal_malloc(nBytes); if( p==0 ){ sqlite3MemsysAlarm(nBytes); p = internal_malloc(nBytes); if( p==0 ){ sqlite3_mutex_leave(mem.mutex); return 0; } } if( nOld<nBytes ){ memcpy(p, pPrior, nOld); }else{ memcpy(p, pPrior, nBytes); |