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Change the size of a mini-lookaside allocation to a macro (MINI_SZ) rather

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than a magic number (128).

FossilOrigin-Name: 5e1949bca998f3c8c23a8ebf01c7a2e7a2af1fdad43886271e1fe0f25411551d
This commit is contained in:
drh
2019-12-12 17:17:24 +00:00
parent 20d6c1fe1b
commit 0225d819c4
5 changed files with 19 additions and 16 deletions
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6
src/malloc.c
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@@ -334,7 +334,7 @@ int sqlite3MallocSize(void *p){
}
static int lookasideMallocSize(sqlite3 *db, void *p){
#ifndef SQLITE_OMIT_MINI_LOOKASIDE
return p<db->lookaside.pMiddle ? db->lookaside.szTrue : 128;
return p<db->lookaside.pMiddle ? db->lookaside.szTrue : MINI_SZ;
#else
return db->lookaside.szTrue;
#endif
@@ -408,7 +408,7 @@ void sqlite3DbFreeNN(sqlite3 *db, void *p){
if( p>=db->lookaside.pMiddle ){
# ifdef SQLITE_DEBUG
/* Trash all content in the buffer being freed */
memset(p, 0xaa, 128);
memset(p, 0xaa, MINI_SZ);
# endif
pBuf->pNext = db->lookaside.pMiniFree;
db->lookaside.pMiniFree = pBuf;
@@ -583,7 +583,7 @@ void *sqlite3DbMallocRawNN(sqlite3 *db, u64 n){
}
db->lookaside.anStat[1]++;
# ifndef SQLITE_OMIT_MINI_LOOKASIDE
}else if( n<=128 ){
}else if( n<=MINI_SZ ){
if( (pBuf = db->lookaside.pMiniFree)!=0 ){
db->lookaside.pMiniFree = pBuf->pNext;
db->lookaside.anStat[0]++;