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sqlite/src/test2.c
drh 66560adab3 Change the OS interface layer to use traditional direct function call 
implementations instead of the more complicated virtual function table.
Omit the asynchronous I/O demo. (CVS 2870)

FossilOrigin-Name: 2529c2e11fa1d345ec61f647e4f6fae20a7133d6
2006-01-06 14:32:19 +00:00

607 lines
17 KiB
C
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/*
** 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 1.39 2006/01/06 14:32:20 drh Exp $
*/
#include "sqliteInt.h"
#include "os.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_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_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_CONSTRAINT: zName = "SQLITE_CONSTRAINT"; break;
case SQLITE_MISMATCH: zName = "SQLITE_MISMATCH"; break;
case SQLITE_MISUSE: zName = "SQLITE_MISUSE"; break;
case SQLITE_NOLFS: zName = "SQLITE_NOLFS"; break;
default: zName = "SQLITE_Unknown"; break;
}
return zName;
}
/*
** Page size and reserved size used for testing.
*/
static int test_pagesize = 1024;
/*
** 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 */
const 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 = sqlite3pager_open(&pPager, argv[1], 0, 0);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
sqlite3pager_set_cachesize(pPager, nPage);
sqlite3pager_set_pagesize(pPager, test_pagesize);
sqlite3_snprintf(sizeof(zBuf),zBuf,"%p",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 */
const 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;
}
pPager = sqlite3TextToPtr(argv[1]);
rc = sqlite3pager_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 */
const 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;
}
pPager = sqlite3TextToPtr(argv[1]);
rc = sqlite3pager_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 */
const 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;
}
pPager = sqlite3TextToPtr(argv[1]);
rc = sqlite3pager_commit(pPager);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
return TCL_OK;
}
/*
** Usage: pager_stmt_begin ID
**
** Start a new checkpoint.
*/
static int pager_stmt_begin(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
const 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;
}
pPager = sqlite3TextToPtr(argv[1]);
rc = sqlite3pager_stmt_begin(pPager);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
return TCL_OK;
}
/*
** Usage: pager_stmt_rollback ID
**
** Rollback changes to a checkpoint
*/
static int pager_stmt_rollback(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
const 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;
}
pPager = sqlite3TextToPtr(argv[1]);
rc = sqlite3pager_stmt_rollback(pPager);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
return TCL_OK;
}
/*
** Usage: pager_stmt_commit ID
**
** Commit changes to a checkpoint
*/
static int pager_stmt_commit(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
const 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;
}
pPager = sqlite3TextToPtr(argv[1]);
rc = sqlite3pager_stmt_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 */
const 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;
}
pPager = sqlite3TextToPtr(argv[1]);
a = sqlite3pager_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]);
sqlite3_snprintf(sizeof(zBuf),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 */
const 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;
}
pPager = sqlite3TextToPtr(argv[1]);
sqlite3_snprintf(sizeof(zBuf),zBuf,"%d",sqlite3pager_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 */
const 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;
}
pPager = sqlite3TextToPtr(argv[1]);
if( Tcl_GetInt(interp, argv[2], &pgno) ) return TCL_ERROR;
rc = sqlite3pager_get(pPager, pgno, &pPage);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
sqlite3_snprintf(sizeof(zBuf),zBuf,"%p",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 */
const 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;
}
pPager = sqlite3TextToPtr(argv[1]);
if( Tcl_GetInt(interp, argv[2], &pgno) ) return TCL_ERROR;
pPage = sqlite3pager_lookup(pPager, pgno);
if( pPage ){
sqlite3_snprintf(sizeof(zBuf),zBuf,"%p",pPage);
Tcl_AppendResult(interp, zBuf, 0);
}
return TCL_OK;
}
/*
** Usage: pager_truncate ID PGNO
*/
static int pager_truncate(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
const char **argv /* Text of each argument */
){
Pager *pPager;
int rc;
int pgno;
if( argc!=3 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" ID PGNO\"", 0);
return TCL_ERROR;
}
pPager = sqlite3TextToPtr(argv[1]);
if( Tcl_GetInt(interp, argv[2], &pgno) ) return TCL_ERROR;
rc = sqlite3pager_truncate(pPager, pgno);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
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 */
const 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;
}
pPage = sqlite3TextToPtr(argv[1]);
rc = sqlite3pager_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 */
const 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;
}
pPage = sqlite3TextToPtr(argv[1]);
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 */
const 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;
}
pPage = sqlite3TextToPtr(argv[1]);
sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", sqlite3pager_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 */
const 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;
}
pPage = sqlite3TextToPtr(argv[1]);
rc = sqlite3pager_write(pPage);
if( rc!=SQLITE_OK ){
Tcl_AppendResult(interp, errorName(rc), 0);
return TCL_ERROR;
}
strncpy((char*)pPage, argv[2], test_pagesize-1);
((char*)pPage)[test_pagesize-1] = 0;
return TCL_OK;
}
#ifndef SQLITE_OMIT_DISKIO
/*
** Usage: fake_big_file N FILENAME
**
** Write a few bytes at the N megabyte point of FILENAME. This will
** create a large file. If the file was a valid SQLite database, then
** the next time the database is opened, SQLite will begin allocating
** new pages after N. If N is 2096 or bigger, this will test the
** ability of SQLite to write to large files.
*/
static int fake_big_file(
void *NotUsed,
Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
int argc, /* Number of arguments */
const char **argv /* Text of each argument */
){
int rc;
int n;
i64 offset;
OsFile *fd = 0;
int readOnly = 0;
if( argc!=3 ){
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" N-MEGABYTES FILE\"", 0);
return TCL_ERROR;
}
if( Tcl_GetInt(interp, argv[1], &n) ) return TCL_ERROR;
rc = sqlite3OsOpenReadWrite(argv[2], &fd, &readOnly);
if( rc ){
Tcl_AppendResult(interp, "open failed: ", errorName(rc), 0);
return TCL_ERROR;
}
offset = n;
offset *= 1024*1024;
rc = sqlite3OsSeek(fd, offset);
if( rc ){
Tcl_AppendResult(interp, "seek failed: ", errorName(rc), 0);
return TCL_ERROR;
}
rc = sqlite3OsWrite(fd, "Hello, World!", 14);
sqlite3OsClose(&fd);
if( rc ){
Tcl_AppendResult(interp, "write failed: ", errorName(rc), 0);
return TCL_ERROR;
}
return TCL_OK;
}
#endif
/*
** Register commands with the TCL interpreter.
*/
int Sqlitetest2_Init(Tcl_Interp *interp){
extern int sqlite3_io_error_pending;
extern int sqlite3_io_error_hit;
extern int sqlite3_diskfull_pending;
extern int sqlite3_diskfull;
static struct {
char *zName;
Tcl_CmdProc *xProc;
} aCmd[] = {
{ "pager_open", (Tcl_CmdProc*)pager_open },
{ "pager_close", (Tcl_CmdProc*)pager_close },
{ "pager_commit", (Tcl_CmdProc*)pager_commit },
{ "pager_rollback", (Tcl_CmdProc*)pager_rollback },
{ "pager_stmt_begin", (Tcl_CmdProc*)pager_stmt_begin },
{ "pager_stmt_commit", (Tcl_CmdProc*)pager_stmt_commit },
{ "pager_stmt_rollback", (Tcl_CmdProc*)pager_stmt_rollback },
{ "pager_stats", (Tcl_CmdProc*)pager_stats },
{ "pager_pagecount", (Tcl_CmdProc*)pager_pagecount },
{ "page_get", (Tcl_CmdProc*)page_get },
{ "page_lookup", (Tcl_CmdProc*)page_lookup },
{ "page_unref", (Tcl_CmdProc*)page_unref },
{ "page_read", (Tcl_CmdProc*)page_read },
{ "page_write", (Tcl_CmdProc*)page_write },
{ "page_number", (Tcl_CmdProc*)page_number },
{ "pager_truncate", (Tcl_CmdProc*)pager_truncate },
#ifndef SQLITE_OMIT_DISKIO
{ "fake_big_file", (Tcl_CmdProc*)fake_big_file },
#endif
};
int i;
for(i=0; i<sizeof(aCmd)/sizeof(aCmd[0]); i++){
Tcl_CreateCommand(interp, aCmd[i].zName, aCmd[i].xProc, 0, 0);
}
Tcl_LinkVar(interp, "sqlite_io_error_pending",
(char*)&sqlite3_io_error_pending, TCL_LINK_INT);
Tcl_LinkVar(interp, "sqlite_io_error_hit",
(char*)&sqlite3_io_error_hit, TCL_LINK_INT);
Tcl_LinkVar(interp, "sqlite_diskfull_pending",
(char*)&sqlite3_diskfull_pending, TCL_LINK_INT);
Tcl_LinkVar(interp, "sqlite_diskfull",
(char*)&sqlite3_diskfull, TCL_LINK_INT);
Tcl_LinkVar(interp, "sqlite_pending_byte",
(char*)&sqlite3_pending_byte, TCL_LINK_INT);
Tcl_LinkVar(interp, "pager_pagesize",
(char*)&test_pagesize, TCL_LINK_INT);
return TCL_OK;
}
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