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+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+/*
+** 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 1.16 2004/02/10 01:54:28 drh Exp $
+*/
+#include "os.h"
+#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;
+ case SQLITE_NOLFS: zName = "SQLITE_NOLFS"; 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 */
+ 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 = sqlitepager_open(&pPager, argv[1], nPage, 0, 1);
+ 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 */
+ 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;
+ }
+ 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 */
+ 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;
+ }
+ 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 */
+ 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;
+ }
+ 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 */
+ 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;
+ }
+ 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 */
+ 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;
+ }
+ 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 */
+ 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;
+ }
+ 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 */
+ 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;
+ }
+ 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 */
+ 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;
+ }
+ 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 */
+ 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;
+ }
+ 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 */
+ 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;
+ }
+ 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 */
+ 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;
+ }
+ 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 */
+ 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;
+ }
+ 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 */
+ 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;
+ }
+ 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 */
+ 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;
+ }
+ 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_USABLE_SIZE-1);
+ ((char*)pPage)[SQLITE_USABLE_SIZE-1] = 0;
+ return TCL_OK;
+}
+
+/*
+** 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;
+ off_t offset;
+ OsFile fd;
+ 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 = sqliteOsOpenReadWrite(argv[2], &fd, &readOnly);
+ if( rc ){
+ Tcl_AppendResult(interp, "open failed: ", errorName(rc), 0);
+ return TCL_ERROR;
+ }
+ offset = n;
+ offset *= 1024*1024;
+ rc = sqliteOsSeek(&fd, offset);
+ if( rc ){
+ Tcl_AppendResult(interp, "seek failed: ", errorName(rc), 0);
+ return TCL_ERROR;
+ }
+ rc = sqliteOsWrite(&fd, "Hello, World!", 14);
+ sqliteOsClose(&fd);
+ if( rc ){
+ Tcl_AppendResult(interp, "write failed: ", errorName(rc), 0);
+ return TCL_ERROR;
+ }
+ return TCL_OK;
+}
+
+/*
+** Register commands with the TCL interpreter.
+*/
+int Sqlitetest2_Init(Tcl_Interp *interp){
+ extern int sqlite_io_error_pending;
+ char zBuf[100];
+ 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_ckpt_begin", (Tcl_CmdProc*)pager_ckpt_begin },
+ { "pager_ckpt_commit", (Tcl_CmdProc*)pager_ckpt_commit },
+ { "pager_ckpt_rollback", (Tcl_CmdProc*)pager_ckpt_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 },
+ { "fake_big_file", (Tcl_CmdProc*)fake_big_file },
+ };
+ 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*)&sqlite_io_error_pending, TCL_LINK_INT);
+#ifdef SQLITE_TEST
+ Tcl_LinkVar(interp, "journal_format",
+ (char*)&journal_format, TCL_LINK_INT);
+#endif
+ sprintf(zBuf, "%d", SQLITE_PAGE_SIZE);
+ Tcl_SetVar(interp, "SQLITE_PAGE_SIZE", zBuf, TCL_GLOBAL_ONLY);
+ sprintf(zBuf, "%d", SQLITE_PAGE_RESERVE);
+ Tcl_SetVar(interp, "SQLITE_PAGE_RESERVE", zBuf, TCL_GLOBAL_ONLY);
+ sprintf(zBuf, "%d", SQLITE_USABLE_SIZE);
+ Tcl_SetVar(interp, "SQLITE_USABLE_SIZE", zBuf, TCL_GLOBAL_ONLY);
+ return TCL_OK;
+}