/*
** 2001 September 15
**
** 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.
**
*************************************************************************
** Code for testing the pager.c module in SQLite. This code
** is not included in the SQLite library. It is used for automated
** testing of the SQLite library.
**
** $Id: test2.c,v 1.8 2002/05/10 05:44:56 drh Exp $
*/
#include "sqliteInt.h"
#include "pager.h"
#include "tcl.h"
#include <stdlib.h>
#include <string.h>
/*
** Interpret an SQLite error number
*/
static char *errorName(int rc){
char *zName;
switch( rc ){
case SQLITE_OK: zName = "SQLITE_OK"; break;
case SQLITE_ERROR: zName = "SQLITE_ERROR"; break;
case SQLITE_INTERNAL: zName = "SQLITE_INTERNAL"; break;
case SQLITE_PERM: zName = "SQLITE_PERM"; break;
case SQLITE_ABORT: zName = "SQLITE_ABORT"; break;
case SQLITE_BUSY: zName = "SQLITE_BUSY"; break;
case SQLITE_NOMEM: zName = "SQLITE_NOMEM"; break;
case SQLITE_READONLY: zName = "SQLITE_READONLY"; break;
case SQLITE_INTERRUPT: zName = "SQLITE_INTERRUPT"; break;
case SQLITE_IOERR: zName = "SQLITE_IOERR"; break;
case SQLITE_CORRUPT: zName = "SQLITE_CORRUPT"; break;
case SQLITE_NOTFOUND: zName = "SQLITE_NOTFOUND"; break;
case SQLITE_FULL: zName = "SQLITE_FULL"; break;
case SQLITE_CANTOPEN: zName = "SQLITE_CANTOPEN"; break;
case SQLITE_PROTOCOL: zName = "SQLITE_PROTOCOL"; break;
case SQLITE_EMPTY: zName = "SQLITE_EMPTY"; break;
case SQLITE_SCHEMA: zName = "SQLITE_SCHEMA"; break;
case SQLITE_TOOBIG: zName = "SQLITE_TOOBIG"; break;
case SQLITE_CONSTRAINT: zName = "SQLITE_CONSTRAINT"; break;
case SQLITE_MISMATCH: zName = "SQLITE_MISMATCH"; break;
case SQLITE_MISUSE: zName = "SQLITE_MISUSE"; break;
default: zName = "SQLITE_Unknown"; break;
}
return zName;
}
/*
** Usage: pager_open FILENAME N-PAGE
**
** Open a new pager
*/
static int pager_open(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
Pager *pPager;
int nPage;
int rc;
char zBuf[100];
if( argc!=3 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" FILENAME N-PAGE\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[2], &nPage) ) return TCL_ERROR;
rc = sqlitepager_open(&pPager, argv[1], nPage, 0);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
sprintf(zBuf,"0x%x",(int)pPager);
Tcl_AppendResult(interp, zBuf, 0);
return TCL_OK;
}
/*
** Usage: pager_close ID
**
** Close the given pager.
*/
static int pager_close(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
Pager *pPager;
int rc;
if( argc!=2 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" ID\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPager) ) return TCL_ERROR;
rc = sqlitepager_close(pPager);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
return TCL_OK;
}
/*
** Usage: pager_rollback ID
**
** Rollback changes
*/
static int pager_rollback(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
Pager *pPager;
int rc;
if( argc!=2 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" ID\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPager) ) return TCL_ERROR;
rc = sqlitepager_rollback(pPager);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
return TCL_OK;
}
/*
** Usage: pager_commit ID
**
** Commit all changes
*/
static int pager_commit(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
Pager *pPager;
int rc;
if( argc!=2 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" ID\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPager) ) return TCL_ERROR;
rc = sqlitepager_commit(pPager);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
return TCL_OK;
}
/*
** Usage: pager_ckpt_begin ID
**
** Start a new checkpoint.
*/
static int pager_ckpt_begin(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
Pager *pPager;
int rc;
if( argc!=2 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" ID\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPager) ) return TCL_ERROR;
rc = sqlitepager_ckpt_begin(pPager);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
return TCL_OK;
}
/*
** Usage: pager_ckpt_rollback ID
**
** Rollback changes to a checkpoint
*/
static int pager_ckpt_rollback(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
Pager *pPager;
int rc;
if( argc!=2 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" ID\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPager) ) return TCL_ERROR;
rc = sqlitepager_ckpt_rollback(pPager);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
return TCL_OK;
}
/*
** Usage: pager_ckpt_commit ID
**
** Commit changes to a checkpoint
*/
static int pager_ckpt_commit(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
Pager *pPager;
int rc;
if( argc!=2 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" ID\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPager) ) return TCL_ERROR;
rc = sqlitepager_ckpt_commit(pPager);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
return TCL_OK;
}
/*
** Usage: pager_stats ID
**
** Return pager statistics.
*/
static int pager_stats(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
Pager *pPager;
int i, *a;
if( argc!=2 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" ID\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPager) ) return TCL_ERROR;
a = sqlitepager_stats(pPager);
for(i=0; i<9; i++){
static char *zName[] = {
"ref", "page", "max", "size", "state", "err",
"hit", "miss", "ovfl",
};
char zBuf[100];
Tcl_AppendElement(interp, zName[i]);
sprintf(zBuf,"%d",a[i]);
Tcl_AppendElement(interp, zBuf);
}
return TCL_OK;
}
/*
** Usage: pager_pagecount ID
**
** Return the size of the database file.
*/
static int pager_pagecount(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
Pager *pPager;
char zBuf[100];
if( argc!=2 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" ID\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPager) ) return TCL_ERROR;
sprintf(zBuf,"%d",sqlitepager_pagecount(pPager));
Tcl_AppendResult(interp, zBuf, 0);
return TCL_OK;
}
/*
** Usage: page_get ID PGNO
**
** Return a pointer to a page from the database.
*/
static int page_get(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
Pager *pPager;
char zBuf[100];
void *pPage;
int pgno;
int rc;
if( argc!=3 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" ID PGNO\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPager) ) return TCL_ERROR;
if( Tcl_GetInt(interp, argv[2], &pgno) ) return TCL_ERROR;
rc = sqlitepager_get(pPager, pgno, &pPage);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
sprintf(zBuf,"0x%x",(int)pPage);
Tcl_AppendResult(interp, zBuf, 0);
return TCL_OK;
}
/*
** Usage: page_lookup ID PGNO
**
** Return a pointer to a page if the page is already in cache.
** If not in cache, return an empty string.
*/
static int page_lookup(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
Pager *pPager;
char zBuf[100];
void *pPage;
int pgno;
if( argc!=3 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" ID PGNO\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPager) ) return TCL_ERROR;
if( Tcl_GetInt(interp, argv[2], &pgno) ) return TCL_ERROR;
pPage = sqlitepager_lookup(pPager, pgno);
if( pPage ){
sprintf(zBuf,"0x%x",(int)pPage);
Tcl_AppendResult(interp, zBuf, 0);
}
return TCL_OK;
}
/*
** Usage: page_unref PAGE
**
** Drop a pointer to a page.
*/
static int page_unref(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
void *pPage;
int rc;
if( argc!=2 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" PAGE\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPage) ) return TCL_ERROR;
rc = sqlitepager_unref(pPage);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
return TCL_OK;
}
/*
** Usage: page_read PAGE
**
** Return the content of a page
*/
static int page_read(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
char zBuf[100];
void *pPage;
if( argc!=2 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" PAGE\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPage) ) return TCL_ERROR;
memcpy(zBuf, pPage, sizeof(zBuf));
Tcl_AppendResult(interp, zBuf, 0);
return TCL_OK;
}
/*
** Usage: page_number PAGE
**
** Return the page number for a page.
*/
static int page_number(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
char zBuf[100];
void *pPage;
if( argc!=2 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" PAGE\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPage) ) return TCL_ERROR;
sprintf(zBuf, "%d", sqlitepager_pagenumber(pPage));
Tcl_AppendResult(interp, zBuf, 0);
return TCL_OK;
}
/*
** Usage: page_write PAGE DATA
**
** Write something into a page.
*/
static int page_write(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
char **argv /* Text of each argument */
){
void *pPage;
int rc;
if( argc!=3 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" PAGE DATA\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], (int*)&pPage) ) return TCL_ERROR;
rc = sqlitepager_write(pPage);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
strncpy((char*)pPage, argv[2], SQLITE_PAGE_SIZE-1);
((char*)pPage)[SQLITE_PAGE_SIZE-1] = 0;
return TCL_OK;
}
/*
** Register commands with the TCL interpreter.
*/
int Sqlitetest2_Init(Tcl_Interp *interp){
extern int sqlite_io_error_pending;
Tcl_CreateCommand(interp, "pager_open", pager_open, 0, 0);
Tcl_CreateCommand(interp, "pager_close", pager_close, 0, 0);
Tcl_CreateCommand(interp, "pager_commit", pager_commit, 0, 0);
Tcl_CreateCommand(interp, "pager_rollback", pager_rollback, 0, 0);
Tcl_CreateCommand(interp, "pager_ckpt_begin", pager_ckpt_begin, 0, 0);
Tcl_CreateCommand(interp, "pager_ckpt_commit", pager_ckpt_commit, 0, 0);
Tcl_CreateCommand(interp, "pager_ckpt_rollback", pager_ckpt_rollback, 0, 0);
Tcl_CreateCommand(interp, "pager_stats", pager_stats, 0, 0);
Tcl_CreateCommand(interp, "pager_pagecount", pager_pagecount, 0, 0);
Tcl_CreateCommand(interp, "page_get", page_get, 0, 0);
Tcl_CreateCommand(interp, "page_lookup", page_lookup, 0, 0);
Tcl_CreateCommand(interp, "page_unref", page_unref, 0, 0);
Tcl_CreateCommand(interp, "page_read", page_read, 0, 0);
Tcl_CreateCommand(interp, "page_write", page_write, 0, 0);
Tcl_CreateCommand(interp, "page_number", page_number, 0, 0);
Tcl_LinkVar(interp, "sqlite_io_error_pending",
(char*)&sqlite_io_error_pending, TCL_LINK_INT);
return TCL_OK;
}