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Add the sqlite3_result_zeroblob64() API. Use it in the SQL zeroblob() function.

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FossilOrigin-Name: c6445b9fb4d7d1a8479436d7d183bad754a01615
This commit is contained in:
dan
2015-07-24 16:24:37 +00:00
parent 53e66c3cda
commit a4d5ae8fa2
7 changed files with 55 additions and 20 deletions
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14
src/vdbeapi.c
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@@ -162,7 +162,10 @@ int sqlite3_clear_bindings(sqlite3_stmt *pStmt){
const void *sqlite3_value_blob(sqlite3_value *pVal){
Mem *p = (Mem*)pVal;
if( p->flags & (MEM_Blob|MEM_Str) ){
if( sqlite3VdbeMemExpandBlob(p)!=SQLITE_OK ) return 0;
if( sqlite3VdbeMemExpandBlob(p)!=SQLITE_OK ){
assert( p->flags==MEM_Null && p->z==0 );
return 0;
}
p->flags |= MEM_Blob;
return p->n ? p->z : 0;
}else{
@@ -424,6 +427,15 @@ void sqlite3_result_zeroblob(sqlite3_context *pCtx, int n){
assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) );
sqlite3VdbeMemSetZeroBlob(pCtx->pOut, n);
}
int sqlite3_result_zeroblob64(sqlite3_context *pCtx, u64 n){
Mem *pOut = pCtx->pOut;
assert( sqlite3_mutex_held(pOut->db->mutex) );
if( n>pOut->db->aLimit[SQLITE_LIMIT_LENGTH] ){
return SQLITE_TOOBIG;
}
sqlite3VdbeMemSetZeroBlob(pCtx->pOut, (int)n);
return SQLITE_OK;
}
void sqlite3_result_error_code(sqlite3_context *pCtx, int errCode){
pCtx->isError = errCode;
pCtx->fErrorOrAux = 1;