database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-08-10 01:02:56 +03:00
Code Activity

Add the SQLITE_CONFIG_MMAP_LIMIT configuration option for overriding the

Browse Source 
SQLITE_DEFAULT_MMAP_LIMIT compile-time setting.  Enhance "PRAGMA mmap_limit"
so that without a specific database name, it sets the limit on all database
files and changes the default for any future databases that might be added
using ATTACH.

FossilOrigin-Name: 78141d0a16dd1d56b575fccd149de7fa789cb06c
This commit is contained in:
drh
2013-04-01 22:38:06 +00:00
parent a539c8a464
commit a1f42c7c32
10 changed files with 53 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/main.c
View File

@@ -496,6 +496,13 @@ int sqlite3_config(int op, ...){
}
#endif
case SQLITE_CONFIG_MMAP_LIMIT: {
sqlite3_int64 mxMmap = va_arg(ap, sqlite3_int64);
if( mxMmap<0 ) mxMmap = SQLITE_DEFAULT_MMAP_LIMIT;
sqlite3GlobalConfig.mxMmap = mxMmap;
break;
}
default: {
rc = SQLITE_ERROR;
break;
@@ -2316,6 +2323,7 @@ static int openDatabase(
memcpy(db->aLimit, aHardLimit, sizeof(db->aLimit));
db->autoCommit = 1;
db->nextAutovac = -1;
db->mxMmap = sqlite3GlobalConfig.mxMmap;
db->nextPagesize = 0;
db->flags |= SQLITE_ShortColNames | SQLITE_AutoIndex | SQLITE_EnableTrigger
#if SQLITE_DEFAULT_FILE_FORMAT<4