database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-14 00:22:38 +03:00
Code Activity

Performance improvement in the printf() logic by avoiding unnecessary stack

Browse Source 
pointer movement.

FossilOrigin-Name: f7f2160db014f0ae11ad13c8ad70ad3444124e3e
This commit is contained in:
drh
2014-08-22 15:40:20 +00:00
parent 738d190dd8
commit 172087fb73
3 changed files with 12 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/printf.c
View File

@@ -784,7 +784,7 @@ void sqlite3AppendSpace(StrAccum *p, int N){
** work (enlarging the buffer) using tail recursion, so that the
** sqlite3StrAccumAppend() routine can use fast calling semantics.
*/
static void enlargeAndAppend(StrAccum *p, const char *z, int N){
static void SQLITE_NOINLINE enlargeAndAppend(StrAccum *p, const char *z, int N){
N = sqlite3StrAccumEnlarge(p, N);
if( N>0 ){
memcpy(&p->zText[p->nChar], z, N);
@@ -803,11 +803,11 @@ void sqlite3StrAccumAppend(StrAccum *p, const char *z, int N){
assert( p->accError==0 || p->nAlloc==0 );
if( p->nChar+N >= p->nAlloc ){
enlargeAndAppend(p,z,N);
return;
}else{
assert( p->zText );
p->nChar += N;
memcpy(&p->zText[p->nChar-N], z, N);
}
assert( p->zText );
memcpy(&p->zText[p->nChar], z, N);
p->nChar += N;
}
/*