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authorWez Furlong <wez@php.net>2003-06-04 22:40:00 +0000
committerWez Furlong <wez@php.net>2003-06-04 22:40:00 +0000
commit80e7f7001d39add9010ba78be636245410b79c24 (patch)
tree23ae7f9f01ea9bb1add35b1ff85efa2421d05142 /ext/sqlite/libsqlite/src/attach.c
parent82a1818fdec3afe8e3a5cc8aa7171f4472ea1e4a (diff)
downloadphp-git-80e7f7001d39add9010ba78be636245410b79c24.tar.gz
Update bundled library to version 2.8.2.
Make OnUpdateInt compatible with ZE2. Fix the makefile fragment for non-gnu makes
Diffstat (limited to 'ext/sqlite/libsqlite/src/attach.c')
-rw-r--r--ext/sqlite/libsqlite/src/attach.c130
1 files changed, 130 insertions, 0 deletions
diff --git a/ext/sqlite/libsqlite/src/attach.c b/ext/sqlite/libsqlite/src/attach.c
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+++ b/ext/sqlite/libsqlite/src/attach.c
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+/*
+** 2003 April 6
+**
+** The author disclaims copyright to this source code. In place of
+** a legal notice, here is a blessing:
+**
+** May you do good and not evil.
+** May you find forgiveness for yourself and forgive others.
+** May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains code used to implement the ATTACH and DETACH commands.
+**
+** $Id$
+*/
+#include "sqliteInt.h"
+
+/*
+** This routine is called by the parser to process an ATTACH statement:
+**
+** ATTACH DATABASE filename AS dbname
+**
+** The pFilename and pDbname arguments are the tokens that define the
+** filename and dbname in the ATTACH statement.
+*/
+void sqliteAttach(Parse *pParse, Token *pFilename, Token *pDbname){
+ Db *aNew;
+ int rc, i;
+ char *zFile, *zName;
+ sqlite *db;
+
+ if( pParse->explain ) return;
+ db = pParse->db;
+ if( db->file_format<4 ){
+ sqliteErrorMsg(pParse, "cannot attach auxiliary databases to an "
+ "older format master database", 0);
+ pParse->rc = SQLITE_ERROR;
+ return;
+ }
+ if( db->nDb>=MAX_ATTACHED+2 ){
+ sqliteErrorMsg(pParse, "too many attached databases - max %d",
+ MAX_ATTACHED);
+ pParse->rc = SQLITE_ERROR;
+ return;
+ }
+ if( db->aDb==db->aDbStatic ){
+ aNew = sqliteMalloc( sizeof(db->aDb[0])*3 );
+ if( aNew==0 ) return;
+ memcpy(aNew, db->aDb, sizeof(db->aDb[0])*2);
+ }else{
+ aNew = sqliteRealloc(db->aDb, sizeof(db->aDb[0])*(db->nDb+1) );
+ if( aNew==0 ) return;
+ }
+ db->aDb = aNew;
+ aNew = &db->aDb[db->nDb++];
+ memset(aNew, 0, sizeof(*aNew));
+ sqliteHashInit(&aNew->tblHash, SQLITE_HASH_STRING, 0);
+ sqliteHashInit(&aNew->idxHash, SQLITE_HASH_STRING, 0);
+ sqliteHashInit(&aNew->trigHash, SQLITE_HASH_STRING, 0);
+ sqliteHashInit(&aNew->aFKey, SQLITE_HASH_STRING, 1);
+
+ zName = 0;
+ sqliteSetNString(&zName, pDbname->z, pDbname->n, 0);
+ if( zName==0 ) return;
+ sqliteDequote(zName);
+ for(i=0; i<db->nDb; i++){
+ if( db->aDb[i].zName && sqliteStrICmp(db->aDb[i].zName, zName)==0 ){
+ sqliteErrorMsg(pParse, "database %z is already in use", zName);
+ db->nDb--;
+ pParse->rc = SQLITE_ERROR;
+ return;
+ }
+ }
+ aNew->zName = zName;
+ zFile = 0;
+ sqliteSetNString(&zFile, pFilename->z, pFilename->n, 0);
+ if( zFile==0 ) return;
+ sqliteDequote(zFile);
+ rc = sqliteBtreeFactory(db, zFile, 0, MAX_PAGES, &aNew->pBt);
+ if( rc ){
+ sqliteErrorMsg(pParse, "unable to open database: %s", zFile);
+ }
+ sqliteFree(zFile);
+ db->flags &= ~SQLITE_Initialized;
+ if( pParse->nErr ) return;
+ rc = sqliteInit(pParse->db, &pParse->zErrMsg);
+ if( rc ){
+ sqliteResetInternalSchema(db, 0);
+ pParse->nErr++;
+ pParse->rc = SQLITE_ERROR;
+ }
+}
+
+/*
+** This routine is called by the parser to process a DETACH statement:
+**
+** DETACH DATABASE dbname
+**
+** The pDbname argument is the name of the database in the DETACH statement.
+*/
+void sqliteDetach(Parse *pParse, Token *pDbname){
+ int i;
+ sqlite *db;
+
+ if( pParse->explain ) return;
+ db = pParse->db;
+ for(i=0; i<db->nDb; i++){
+ if( db->aDb[i].pBt==0 || db->aDb[i].zName==0 ) continue;
+ if( strlen(db->aDb[i].zName)!=pDbname->n ) continue;
+ if( sqliteStrNICmp(db->aDb[i].zName, pDbname->z, pDbname->n)==0 ) break;
+ }
+ if( i>=db->nDb ){
+ sqliteErrorMsg(pParse, "no such database: %T", pDbname);
+ return;
+ }
+ if( i<2 ){
+ sqliteErrorMsg(pParse, "cannot detach database %T", pDbname);
+ return;
+ }
+ sqliteBtreeClose(db->aDb[i].pBt);
+ db->aDb[i].pBt = 0;
+ sqliteFree(db->aDb[i].zName);
+ sqliteResetInternalSchema(db, i);
+ db->nDb--;
+ if( i<db->nDb ){
+ db->aDb[i] = db->aDb[db->nDb];
+ memset(&db->aDb[db->nDb], 0, sizeof(db->aDb[0]));
+ sqliteResetInternalSchema(db, i);
+ }
+}