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sqlite/ext/session/test_session.c
dan 1f48e67db1 Add the sqlite3session_config() interface. For configuring global parameters 
belonging to the sessions module.

FossilOrigin-Name: 1e69f3ff057b0be27a9e79842de2485f8299799f309e89bfa7597dd688e0975b
2018-10-26 17:05:00 +00:00

1309 lines
37 KiB
C
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#if defined(SQLITE_TEST) && defined(SQLITE_ENABLE_SESSION) \
&& defined(SQLITE_ENABLE_PREUPDATE_HOOK)
#include "sqlite3session.h"
#include <assert.h>
#include <string.h>
#if defined(INCLUDE_SQLITE_TCL_H)
# include "sqlite_tcl.h"
#else
# include "tcl.h"
# ifndef SQLITE_TCLAPI
# define SQLITE_TCLAPI
# endif
#endif
#ifndef SQLITE_AMALGAMATION
typedef unsigned char u8;
#endif
typedef struct TestSession TestSession;
struct TestSession {
sqlite3_session *pSession;
Tcl_Interp *interp;
Tcl_Obj *pFilterScript;
};
typedef struct TestStreamInput TestStreamInput;
struct TestStreamInput {
int nStream; /* Maximum chunk size */
unsigned char *aData; /* Pointer to buffer containing data */
int nData; /* Size of buffer aData in bytes */
int iData; /* Bytes of data already read by sessions */
};
/*
** Extract an sqlite3* db handle from the object passed as the second
** argument. If successful, set *pDb to point to the db handle and return
** TCL_OK. Otherwise, return TCL_ERROR.
*/
static int dbHandleFromObj(Tcl_Interp *interp, Tcl_Obj *pObj, sqlite3 **pDb){
Tcl_CmdInfo info;
if( 0==Tcl_GetCommandInfo(interp, Tcl_GetString(pObj), &info) ){
Tcl_AppendResult(interp, "no such handle: ", Tcl_GetString(pObj), 0);
return TCL_ERROR;
}
*pDb = *(sqlite3 **)info.objClientData;
return TCL_OK;
}
/*************************************************************************
** The following code is copied byte-for-byte from the sessions module
** documentation. It is used by some of the sessions modules tests to
** ensure that the example in the documentation does actually work.
*/
/*
** Argument zSql points to a buffer containing an SQL script to execute
** against the database handle passed as the first argument. As well as
** executing the SQL script, this function collects a changeset recording
** all changes made to the "main" database file. Assuming no error occurs,
** output variables (*ppChangeset) and (*pnChangeset) are set to point
** to a buffer containing the changeset and the size of the changeset in
** bytes before returning SQLITE_OK. In this case it is the responsibility
** of the caller to eventually free the changeset blob by passing it to
** the sqlite3_free function.
**
** Or, if an error does occur, return an SQLite error code. The final
** value of (*pChangeset) and (*pnChangeset) are undefined in this case.
*/
int sql_exec_changeset(
sqlite3 *db, /* Database handle */
const char *zSql, /* SQL script to execute */
int *pnChangeset, /* OUT: Size of changeset blob in bytes */
void **ppChangeset /* OUT: Pointer to changeset blob */
){
sqlite3_session *pSession = 0;
int rc;
/* Create a new session object */
rc = sqlite3session_create(db, "main", &pSession);
/* Configure the session object to record changes to all tables */
if( rc==SQLITE_OK ) rc = sqlite3session_attach(pSession, NULL);
/* Execute the SQL script */
if( rc==SQLITE_OK ) rc = sqlite3_exec(db, zSql, 0, 0, 0);
/* Collect the changeset */
if( rc==SQLITE_OK ){
rc = sqlite3session_changeset(pSession, pnChangeset, ppChangeset);
}
/* Delete the session object */
sqlite3session_delete(pSession);
return rc;
}
/************************************************************************/
/*
** Tclcmd: sql_exec_changeset DB SQL
*/
static int SQLITE_TCLAPI test_sql_exec_changeset(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
const char *zSql;
sqlite3 *db;
void *pChangeset;
int nChangeset;
int rc;
if( objc!=3 ){
Tcl_WrongNumArgs(interp, 1, objv, "DB SQL");
return TCL_ERROR;
}
if( dbHandleFromObj(interp, objv[1], &db) ) return TCL_ERROR;
zSql = (const char*)Tcl_GetString(objv[2]);
rc = sql_exec_changeset(db, zSql, &nChangeset, &pChangeset);
if( rc!=SQLITE_OK ){
Tcl_ResetResult(interp);
Tcl_AppendResult(interp, "error in sql_exec_changeset()", 0);
return TCL_ERROR;
}
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(pChangeset, nChangeset));
sqlite3_free(pChangeset);
return TCL_OK;
}
#define SESSION_STREAM_TCL_VAR "sqlite3session_streams"
/*
** Attempt to find the global variable zVar within interpreter interp
** and extract an integer value from it. Return this value.
**
** If the named variable cannot be found, or if it cannot be interpreted
** as a integer, return 0.
*/
static int test_tcl_integer(Tcl_Interp *interp, const char *zVar){
Tcl_Obj *pObj;
int iVal = 0;
pObj = Tcl_ObjGetVar2(interp, Tcl_NewStringObj(zVar, -1), 0, TCL_GLOBAL_ONLY);
if( pObj ) Tcl_GetIntFromObj(0, pObj, &iVal);
return iVal;
}
static int test_session_error(Tcl_Interp *interp, int rc, char *zErr){
extern const char *sqlite3ErrName(int);
Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
if( zErr ){
Tcl_AppendResult(interp, " - ", zErr, 0);
sqlite3_free(zErr);
}
return TCL_ERROR;
}
static int test_table_filter(void *pCtx, const char *zTbl){
TestSession *p = (TestSession*)pCtx;
Tcl_Obj *pEval;
int rc;
int bRes = 0;
pEval = Tcl_DuplicateObj(p->pFilterScript);
Tcl_IncrRefCount(pEval);
rc = Tcl_ListObjAppendElement(p->interp, pEval, Tcl_NewStringObj(zTbl, -1));
if( rc==TCL_OK ){
rc = Tcl_EvalObjEx(p->interp, pEval, TCL_EVAL_GLOBAL);
}
if( rc==TCL_OK ){
rc = Tcl_GetBooleanFromObj(p->interp, Tcl_GetObjResult(p->interp), &bRes);
}
if( rc!=TCL_OK ){
/* printf("error: %s\n", Tcl_GetStringResult(p->interp)); */
Tcl_BackgroundError(p->interp);
}
Tcl_DecrRefCount(pEval);
return bRes;
}
struct TestSessionsBlob {
void *p;
int n;
};
typedef struct TestSessionsBlob TestSessionsBlob;
static int testStreamOutput(
void *pCtx,
const void *pData,
int nData
){
TestSessionsBlob *pBlob = (TestSessionsBlob*)pCtx;
char *pNew;
assert( nData>0 );
pNew = (char*)sqlite3_realloc(pBlob->p, pBlob->n + nData);
if( pNew==0 ){
return SQLITE_NOMEM;
}
pBlob->p = (void*)pNew;
memcpy(&pNew[pBlob->n], pData, nData);
pBlob->n += nData;
return SQLITE_OK;
}
/*
** Tclcmd: $session attach TABLE
** $session changeset
** $session delete
** $session enable BOOL
** $session indirect INTEGER
** $session patchset
** $session table_filter SCRIPT
*/
static int SQLITE_TCLAPI test_session_cmd(
void *clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
TestSession *p = (TestSession*)clientData;
sqlite3_session *pSession = p->pSession;
struct SessionSubcmd {
const char *zSub;
int nArg;
const char *zMsg;
int iSub;
} aSub[] = {
{ "attach", 1, "TABLE", }, /* 0 */
{ "changeset", 0, "", }, /* 1 */
{ "delete", 0, "", }, /* 2 */
{ "enable", 1, "BOOL", }, /* 3 */
{ "indirect", 1, "BOOL", }, /* 4 */
{ "isempty", 0, "", }, /* 5 */
{ "table_filter", 1, "SCRIPT", }, /* 6 */
{ "patchset", 0, "", }, /* 7 */
{ "diff", 2, "FROMDB TBL", }, /* 8 */
{ 0 }
};
int iSub;
int rc;
if( objc<2 ){
Tcl_WrongNumArgs(interp, 1, objv, "SUBCOMMAND ...");
return TCL_ERROR;
}
rc = Tcl_GetIndexFromObjStruct(interp,
objv[1], aSub, sizeof(aSub[0]), "sub-command", 0, &iSub
);
if( rc!=TCL_OK ) return rc;
if( objc!=2+aSub[iSub].nArg ){
Tcl_WrongNumArgs(interp, 2, objv, aSub[iSub].zMsg);
return TCL_ERROR;
}
switch( iSub ){
case 0: { /* attach */
char *zArg = Tcl_GetString(objv[2]);
if( zArg[0]=='*' && zArg[1]=='\0' ) zArg = 0;
rc = sqlite3session_attach(pSession, zArg);
if( rc!=SQLITE_OK ){
return test_session_error(interp, rc, 0);
}
break;
}
case 7: /* patchset */
case 1: { /* changeset */
TestSessionsBlob o = {0, 0};
if( test_tcl_integer(interp, SESSION_STREAM_TCL_VAR) ){
void *pCtx = (void*)&o;
if( iSub==7 ){
rc = sqlite3session_patchset_strm(pSession, testStreamOutput, pCtx);
}else{
rc = sqlite3session_changeset_strm(pSession, testStreamOutput, pCtx);
}
}else{
if( iSub==7 ){
rc = sqlite3session_patchset(pSession, &o.n, &o.p);
}else{
rc = sqlite3session_changeset(pSession, &o.n, &o.p);
}
}
if( rc==SQLITE_OK ){
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(o.p, o.n));
}
sqlite3_free(o.p);
if( rc!=SQLITE_OK ){
return test_session_error(interp, rc, 0);
}
break;
}
case 2: /* delete */
Tcl_DeleteCommand(interp, Tcl_GetString(objv[0]));
break;
case 3: { /* enable */
int val;
if( Tcl_GetIntFromObj(interp, objv[2], &val) ) return TCL_ERROR;
val = sqlite3session_enable(pSession, val);
Tcl_SetObjResult(interp, Tcl_NewBooleanObj(val));
break;
}
case 4: { /* indirect */
int val;
if( Tcl_GetIntFromObj(interp, objv[2], &val) ) return TCL_ERROR;
val = sqlite3session_indirect(pSession, val);
Tcl_SetObjResult(interp, Tcl_NewBooleanObj(val));
break;
}
case 5: { /* isempty */
int val;
val = sqlite3session_isempty(pSession);
Tcl_SetObjResult(interp, Tcl_NewBooleanObj(val));
break;
}
case 6: { /* table_filter */
if( p->pFilterScript ) Tcl_DecrRefCount(p->pFilterScript);
p->interp = interp;
p->pFilterScript = Tcl_DuplicateObj(objv[2]);
Tcl_IncrRefCount(p->pFilterScript);
sqlite3session_table_filter(pSession, test_table_filter, clientData);
break;
}
case 8: { /* diff */
char *zErr = 0;
rc = sqlite3session_diff(pSession,
Tcl_GetString(objv[2]),
Tcl_GetString(objv[3]),
&zErr
);
assert( rc!=SQLITE_OK || zErr==0 );
if( rc ){
return test_session_error(interp, rc, zErr);
}
break;
}
}
return TCL_OK;
}
static void SQLITE_TCLAPI test_session_del(void *clientData){
TestSession *p = (TestSession*)clientData;
if( p->pFilterScript ) Tcl_DecrRefCount(p->pFilterScript);
sqlite3session_delete(p->pSession);
ckfree((char*)p);
}
/*
** Tclcmd: sqlite3session CMD DB-HANDLE DB-NAME
*/
static int SQLITE_TCLAPI test_sqlite3session(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
sqlite3 *db;
Tcl_CmdInfo info;
int rc; /* sqlite3session_create() return code */
TestSession *p; /* New wrapper object */
if( objc!=4 ){
Tcl_WrongNumArgs(interp, 1, objv, "CMD DB-HANDLE DB-NAME");
return TCL_ERROR;
}
if( 0==Tcl_GetCommandInfo(interp, Tcl_GetString(objv[2]), &info) ){
Tcl_AppendResult(interp, "no such handle: ", Tcl_GetString(objv[2]), 0);
return TCL_ERROR;
}
db = *(sqlite3 **)info.objClientData;
p = (TestSession*)ckalloc(sizeof(TestSession));
memset(p, 0, sizeof(TestSession));
rc = sqlite3session_create(db, Tcl_GetString(objv[3]), &p->pSession);
if( rc!=SQLITE_OK ){
ckfree((char*)p);
return test_session_error(interp, rc, 0);
}
Tcl_CreateObjCommand(
interp, Tcl_GetString(objv[1]), test_session_cmd, (ClientData)p,
test_session_del
);
Tcl_SetObjResult(interp, objv[1]);
return TCL_OK;
}
static void test_append_value(Tcl_Obj *pList, sqlite3_value *pVal){
if( pVal==0 ){
Tcl_ListObjAppendElement(0, pList, Tcl_NewObj());
Tcl_ListObjAppendElement(0, pList, Tcl_NewObj());
}else{
Tcl_Obj *pObj;
switch( sqlite3_value_type(pVal) ){
case SQLITE_NULL:
Tcl_ListObjAppendElement(0, pList, Tcl_NewStringObj("n", 1));
pObj = Tcl_NewObj();
break;
case SQLITE_INTEGER:
Tcl_ListObjAppendElement(0, pList, Tcl_NewStringObj("i", 1));
pObj = Tcl_NewWideIntObj(sqlite3_value_int64(pVal));
break;
case SQLITE_FLOAT:
Tcl_ListObjAppendElement(0, pList, Tcl_NewStringObj("f", 1));
pObj = Tcl_NewDoubleObj(sqlite3_value_double(pVal));
break;
case SQLITE_TEXT: {
const char *z = (char*)sqlite3_value_blob(pVal);
int n = sqlite3_value_bytes(pVal);
Tcl_ListObjAppendElement(0, pList, Tcl_NewStringObj("t", 1));
pObj = Tcl_NewStringObj(z, n);
break;
}
default:
assert( sqlite3_value_type(pVal)==SQLITE_BLOB );
Tcl_ListObjAppendElement(0, pList, Tcl_NewStringObj("b", 1));
pObj = Tcl_NewByteArrayObj(
sqlite3_value_blob(pVal),
sqlite3_value_bytes(pVal)
);
break;
}
Tcl_ListObjAppendElement(0, pList, pObj);
}
}
typedef struct TestConflictHandler TestConflictHandler;
struct TestConflictHandler {
Tcl_Interp *interp;
Tcl_Obj *pConflictScript;
Tcl_Obj *pFilterScript;
};
static int test_obj_eq_string(Tcl_Obj *p, const char *z){
int n;
int nObj;
char *zObj;
n = (int)strlen(z);
zObj = Tcl_GetStringFromObj(p, &nObj);
return (nObj==n && (n==0 || 0==memcmp(zObj, z, n)));
}
static int test_filter_handler(
void *pCtx, /* Pointer to TestConflictHandler structure */
const char *zTab /* Table name */
){
TestConflictHandler *p = (TestConflictHandler *)pCtx;
int res = 1;
Tcl_Obj *pEval;
Tcl_Interp *interp = p->interp;
pEval = Tcl_DuplicateObj(p->pFilterScript);
Tcl_IncrRefCount(pEval);
if( TCL_OK!=Tcl_ListObjAppendElement(0, pEval, Tcl_NewStringObj(zTab, -1))
|| TCL_OK!=Tcl_EvalObjEx(interp, pEval, TCL_EVAL_GLOBAL)
|| TCL_OK!=Tcl_GetIntFromObj(interp, Tcl_GetObjResult(interp), &res)
){
Tcl_BackgroundError(interp);
}
Tcl_DecrRefCount(pEval);
return res;
}
static int test_conflict_handler(
void *pCtx, /* Pointer to TestConflictHandler structure */
int eConf, /* DATA, MISSING, CONFLICT, CONSTRAINT */
sqlite3_changeset_iter *pIter /* Handle describing change and conflict */
){
TestConflictHandler *p = (TestConflictHandler *)pCtx;
Tcl_Obj *pEval;
Tcl_Interp *interp = p->interp;
int ret = 0; /* Return value */
int op; /* SQLITE_UPDATE, DELETE or INSERT */
const char *zTab; /* Name of table conflict is on */
int nCol; /* Number of columns in table zTab */
pEval = Tcl_DuplicateObj(p->pConflictScript);
Tcl_IncrRefCount(pEval);
sqlite3changeset_op(pIter, &zTab, &nCol, &op, 0);
if( eConf==SQLITE_CHANGESET_FOREIGN_KEY ){
int nFk;
sqlite3changeset_fk_conflicts(pIter, &nFk);
Tcl_ListObjAppendElement(0, pEval, Tcl_NewStringObj("FOREIGN_KEY", -1));
Tcl_ListObjAppendElement(0, pEval, Tcl_NewIntObj(nFk));
}else{
/* Append the operation type. */
Tcl_ListObjAppendElement(0, pEval, Tcl_NewStringObj(
op==SQLITE_INSERT ? "INSERT" :
op==SQLITE_UPDATE ? "UPDATE" :
"DELETE", -1
));
/* Append the table name. */
Tcl_ListObjAppendElement(0, pEval, Tcl_NewStringObj(zTab, -1));
/* Append the conflict type. */
switch( eConf ){
case SQLITE_CHANGESET_DATA:
Tcl_ListObjAppendElement(interp, pEval,Tcl_NewStringObj("DATA",-1));
break;
case SQLITE_CHANGESET_NOTFOUND:
Tcl_ListObjAppendElement(interp, pEval,Tcl_NewStringObj("NOTFOUND",-1));
break;
case SQLITE_CHANGESET_CONFLICT:
Tcl_ListObjAppendElement(interp, pEval,Tcl_NewStringObj("CONFLICT",-1));
break;
case SQLITE_CHANGESET_CONSTRAINT:
Tcl_ListObjAppendElement(interp, pEval,Tcl_NewStringObj("CONSTRAINT",-1));
break;
}
/* If this is not an INSERT, append the old row */
if( op!=SQLITE_INSERT ){
int i;
Tcl_Obj *pOld = Tcl_NewObj();
for(i=0; i<nCol; i++){
sqlite3_value *pVal;
sqlite3changeset_old(pIter, i, &pVal);
test_append_value(pOld, pVal);
}
Tcl_ListObjAppendElement(0, pEval, pOld);
}
/* If this is not a DELETE, append the new row */
if( op!=SQLITE_DELETE ){
int i;
Tcl_Obj *pNew = Tcl_NewObj();
for(i=0; i<nCol; i++){
sqlite3_value *pVal;
sqlite3changeset_new(pIter, i, &pVal);
test_append_value(pNew, pVal);
}
Tcl_ListObjAppendElement(0, pEval, pNew);
}
/* If this is a CHANGESET_DATA or CHANGESET_CONFLICT conflict, append
** the conflicting row. */
if( eConf==SQLITE_CHANGESET_DATA || eConf==SQLITE_CHANGESET_CONFLICT ){
int i;
Tcl_Obj *pConflict = Tcl_NewObj();
for(i=0; i<nCol; i++){
int rc;
sqlite3_value *pVal;
rc = sqlite3changeset_conflict(pIter, i, &pVal);
assert( rc==SQLITE_OK );
test_append_value(pConflict, pVal);
}
Tcl_ListObjAppendElement(0, pEval, pConflict);
}
/***********************************************************************
** This block is purely for testing some error conditions.
*/
if( eConf==SQLITE_CHANGESET_CONSTRAINT
|| eConf==SQLITE_CHANGESET_NOTFOUND
){
sqlite3_value *pVal;
int rc = sqlite3changeset_conflict(pIter, 0, &pVal);
assert( rc==SQLITE_MISUSE );
}else{
sqlite3_value *pVal;
int rc = sqlite3changeset_conflict(pIter, -1, &pVal);
assert( rc==SQLITE_RANGE );
rc = sqlite3changeset_conflict(pIter, nCol, &pVal);
assert( rc==SQLITE_RANGE );
}
if( op==SQLITE_DELETE ){
sqlite3_value *pVal;
int rc = sqlite3changeset_new(pIter, 0, &pVal);
assert( rc==SQLITE_MISUSE );
}else{
sqlite3_value *pVal;
int rc = sqlite3changeset_new(pIter, -1, &pVal);
assert( rc==SQLITE_RANGE );
rc = sqlite3changeset_new(pIter, nCol, &pVal);
assert( rc==SQLITE_RANGE );
}
if( op==SQLITE_INSERT ){
sqlite3_value *pVal;
int rc = sqlite3changeset_old(pIter, 0, &pVal);
assert( rc==SQLITE_MISUSE );
}else{
sqlite3_value *pVal;
int rc = sqlite3changeset_old(pIter, -1, &pVal);
assert( rc==SQLITE_RANGE );
rc = sqlite3changeset_old(pIter, nCol, &pVal);
assert( rc==SQLITE_RANGE );
}
if( eConf!=SQLITE_CHANGESET_FOREIGN_KEY ){
/* eConf!=FOREIGN_KEY is always true at this point. The condition is
** just there to make it clearer what is being tested. */
int nDummy;
int rc = sqlite3changeset_fk_conflicts(pIter, &nDummy);
assert( rc==SQLITE_MISUSE );
}
/* End of testing block
***********************************************************************/
}
if( TCL_OK!=Tcl_EvalObjEx(interp, pEval, TCL_EVAL_GLOBAL) ){
Tcl_BackgroundError(interp);
}else{
Tcl_Obj *pRes = Tcl_GetObjResult(interp);
if( test_obj_eq_string(pRes, "OMIT") || test_obj_eq_string(pRes, "") ){
ret = SQLITE_CHANGESET_OMIT;
}else if( test_obj_eq_string(pRes, "REPLACE") ){
ret = SQLITE_CHANGESET_REPLACE;
}else if( test_obj_eq_string(pRes, "ABORT") ){
ret = SQLITE_CHANGESET_ABORT;
}else{
Tcl_GetIntFromObj(0, pRes, &ret);
}
}
Tcl_DecrRefCount(pEval);
return ret;
}
/*
** The conflict handler used by sqlite3changeset_apply_replace_all().
** This conflict handler calls sqlite3_value_text16() on all available
** sqlite3_value objects and then returns CHANGESET_REPLACE, or
** CHANGESET_OMIT if REPLACE is not applicable. This is used to test the
** effect of a malloc failure within an sqlite3_value_xxx() function
** invoked by a conflict-handler callback.
*/
static int replace_handler(
void *pCtx, /* Pointer to TestConflictHandler structure */
int eConf, /* DATA, MISSING, CONFLICT, CONSTRAINT */
sqlite3_changeset_iter *pIter /* Handle describing change and conflict */
){
int op; /* SQLITE_UPDATE, DELETE or INSERT */
const char *zTab; /* Name of table conflict is on */
int nCol; /* Number of columns in table zTab */
int i;
int x = 0;
sqlite3changeset_op(pIter, &zTab, &nCol, &op, 0);
if( op!=SQLITE_INSERT ){
for(i=0; i<nCol; i++){
sqlite3_value *pVal;
sqlite3changeset_old(pIter, i, &pVal);
sqlite3_value_text16(pVal);
x++;
}
}
if( op!=SQLITE_DELETE ){
for(i=0; i<nCol; i++){
sqlite3_value *pVal;
sqlite3changeset_new(pIter, i, &pVal);
sqlite3_value_text16(pVal);
x++;
}
}
if( eConf==SQLITE_CHANGESET_DATA ){
return SQLITE_CHANGESET_REPLACE;
}
return SQLITE_CHANGESET_OMIT;
}
static int testStreamInput(
void *pCtx, /* Context pointer */
void *pData, /* Buffer to populate */
int *pnData /* IN/OUT: Bytes requested/supplied */
){
TestStreamInput *p = (TestStreamInput*)pCtx;
int nReq = *pnData; /* Bytes of data requested */
int nRem = p->nData - p->iData; /* Bytes of data available */
int nRet = p->nStream; /* Bytes actually returned */
/* Allocate and free some space. There is no point to this, other than
** that it allows the regular OOM fault-injection tests to cause an error
** in this function. */
void *pAlloc = sqlite3_malloc(10);
if( pAlloc==0 ) return SQLITE_NOMEM;
sqlite3_free(pAlloc);
if( nRet>nReq ) nRet = nReq;
if( nRet>nRem ) nRet = nRem;
assert( nRet>=0 );
if( nRet>0 ){
memcpy(pData, &p->aData[p->iData], nRet);
p->iData += nRet;
}
*pnData = nRet;
return SQLITE_OK;
}
static int SQLITE_TCLAPI testSqlite3changesetApply(
int bV2,
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
sqlite3 *db; /* Database handle */
Tcl_CmdInfo info; /* Database Tcl command (objv[1]) info */
int rc; /* Return code from changeset_invert() */
void *pChangeset; /* Buffer containing changeset */
int nChangeset; /* Size of buffer aChangeset in bytes */
TestConflictHandler ctx;
TestStreamInput sStr;
void *pRebase = 0;
int nRebase = 0;
int flags = 0; /* Flags for apply_v2() */
memset(&sStr, 0, sizeof(sStr));
sStr.nStream = test_tcl_integer(interp, SESSION_STREAM_TCL_VAR);
/* Check for the -nosavepoint flag */
if( bV2 ){
if( objc>1 ){
const char *z1 = Tcl_GetString(objv[1]);
int n = strlen(z1);
if( n>1 && n<=12 && 0==sqlite3_strnicmp("-nosavepoint", z1, n) ){
flags |= SQLITE_CHANGESETAPPLY_NOSAVEPOINT;
objc--;
objv++;
}
}
if( objc>1 ){
const char *z1 = Tcl_GetString(objv[1]);
int n = strlen(z1);
if( n>1 && n<=7 && 0==sqlite3_strnicmp("-invert", z1, n) ){
flags |= SQLITE_CHANGESETAPPLY_INVERT;
objc--;
objv++;
}
}
}
if( objc!=4 && objc!=5 ){
const char *zMsg;
if( bV2 ){
zMsg = "?-nosavepoint? ?-inverse? "
"DB CHANGESET CONFLICT-SCRIPT ?FILTER-SCRIPT?";
}else{
zMsg = "DB CHANGESET CONFLICT-SCRIPT ?FILTER-SCRIPT?";
}
Tcl_WrongNumArgs(interp, 1, objv, zMsg);
return TCL_ERROR;
}
if( 0==Tcl_GetCommandInfo(interp, Tcl_GetString(objv[1]), &info) ){
Tcl_AppendResult(interp, "no such handle: ", Tcl_GetString(objv[1]), 0);
return TCL_ERROR;
}
db = *(sqlite3 **)info.objClientData;
pChangeset = (void *)Tcl_GetByteArrayFromObj(objv[2], &nChangeset);
ctx.pConflictScript = objv[3];
ctx.pFilterScript = objc==5 ? objv[4] : 0;
ctx.interp = interp;
if( sStr.nStream==0 ){
if( bV2==0 ){
rc = sqlite3changeset_apply(db, nChangeset, pChangeset,
(objc==5)?test_filter_handler:0, test_conflict_handler, (void *)&ctx
);
}else{
rc = sqlite3changeset_apply_v2(db, nChangeset, pChangeset,
(objc==5)?test_filter_handler:0, test_conflict_handler, (void *)&ctx,
&pRebase, &nRebase, flags
);
}
}else{
sStr.aData = (unsigned char*)pChangeset;
sStr.nData = nChangeset;
if( bV2==0 ){
rc = sqlite3changeset_apply_strm(db, testStreamInput, (void*)&sStr,
(objc==5) ? test_filter_handler : 0,
test_conflict_handler, (void *)&ctx
);
}else{
rc = sqlite3changeset_apply_v2_strm(db, testStreamInput, (void*)&sStr,
(objc==5) ? test_filter_handler : 0,
test_conflict_handler, (void *)&ctx,
&pRebase, &nRebase, flags
);
}
}
if( rc!=SQLITE_OK ){
return test_session_error(interp, rc, 0);
}else{
Tcl_ResetResult(interp);
if( bV2 && pRebase ){
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(pRebase, nRebase));
}
}
sqlite3_free(pRebase);
return TCL_OK;
}
/*
** sqlite3changeset_apply DB CHANGESET CONFLICT-SCRIPT ?FILTER-SCRIPT?
*/
static int SQLITE_TCLAPI test_sqlite3changeset_apply(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
return testSqlite3changesetApply(0, clientData, interp, objc, objv);
}
/*
** sqlite3changeset_apply_v2 DB CHANGESET CONFLICT-SCRIPT ?FILTER-SCRIPT?
*/
static int SQLITE_TCLAPI test_sqlite3changeset_apply_v2(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
return testSqlite3changesetApply(1, clientData, interp, objc, objv);
}
/*
** sqlite3changeset_apply_replace_all DB CHANGESET
*/
static int SQLITE_TCLAPI test_sqlite3changeset_apply_replace_all(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
sqlite3 *db; /* Database handle */
Tcl_CmdInfo info; /* Database Tcl command (objv[1]) info */
int rc; /* Return code from changeset_invert() */
void *pChangeset; /* Buffer containing changeset */
int nChangeset; /* Size of buffer aChangeset in bytes */
if( objc!=3 ){
Tcl_WrongNumArgs(interp, 1, objv, "DB CHANGESET");
return TCL_ERROR;
}
if( 0==Tcl_GetCommandInfo(interp, Tcl_GetString(objv[1]), &info) ){
Tcl_AppendResult(interp, "no such handle: ", Tcl_GetString(objv[2]), 0);
return TCL_ERROR;
}
db = *(sqlite3 **)info.objClientData;
pChangeset = (void *)Tcl_GetByteArrayFromObj(objv[2], &nChangeset);
rc = sqlite3changeset_apply(db, nChangeset, pChangeset, 0, replace_handler,0);
if( rc!=SQLITE_OK ){
return test_session_error(interp, rc, 0);
}
Tcl_ResetResult(interp);
return TCL_OK;
}
/*
** sqlite3changeset_invert CHANGESET
*/
static int SQLITE_TCLAPI test_sqlite3changeset_invert(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
int rc; /* Return code from changeset_invert() */
TestStreamInput sIn; /* Input stream */
TestSessionsBlob sOut; /* Output blob */
if( objc!=2 ){
Tcl_WrongNumArgs(interp, 1, objv, "CHANGESET");
return TCL_ERROR;
}
memset(&sIn, 0, sizeof(sIn));
memset(&sOut, 0, sizeof(sOut));
sIn.nStream = test_tcl_integer(interp, SESSION_STREAM_TCL_VAR);
sIn.aData = Tcl_GetByteArrayFromObj(objv[1], &sIn.nData);
if( sIn.nStream ){
rc = sqlite3changeset_invert_strm(
testStreamInput, (void*)&sIn, testStreamOutput, (void*)&sOut
);
}else{
rc = sqlite3changeset_invert(sIn.nData, sIn.aData, &sOut.n, &sOut.p);
}
if( rc!=SQLITE_OK ){
rc = test_session_error(interp, rc, 0);
}else{
Tcl_SetObjResult(interp,Tcl_NewByteArrayObj((unsigned char*)sOut.p,sOut.n));
}
sqlite3_free(sOut.p);
return rc;
}
/*
** sqlite3changeset_concat LEFT RIGHT
*/
static int SQLITE_TCLAPI test_sqlite3changeset_concat(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
int rc; /* Return code from changeset_invert() */
TestStreamInput sLeft; /* Input stream */
TestStreamInput sRight; /* Input stream */
TestSessionsBlob sOut = {0,0}; /* Output blob */
if( objc!=3 ){
Tcl_WrongNumArgs(interp, 1, objv, "LEFT RIGHT");
return TCL_ERROR;
}
memset(&sLeft, 0, sizeof(sLeft));
memset(&sRight, 0, sizeof(sRight));
sLeft.aData = Tcl_GetByteArrayFromObj(objv[1], &sLeft.nData);
sRight.aData = Tcl_GetByteArrayFromObj(objv[2], &sRight.nData);
sLeft.nStream = test_tcl_integer(interp, SESSION_STREAM_TCL_VAR);
sRight.nStream = sLeft.nStream;
if( sLeft.nStream>0 ){
rc = sqlite3changeset_concat_strm(
testStreamInput, (void*)&sLeft,
testStreamInput, (void*)&sRight,
testStreamOutput, (void*)&sOut
);
}else{
rc = sqlite3changeset_concat(
sLeft.nData, sLeft.aData, sRight.nData, sRight.aData, &sOut.n, &sOut.p
);
}
if( rc!=SQLITE_OK ){
rc = test_session_error(interp, rc, 0);
}else{
Tcl_SetObjResult(interp,Tcl_NewByteArrayObj((unsigned char*)sOut.p,sOut.n));
}
sqlite3_free(sOut.p);
return rc;
}
/*
** sqlite3session_foreach VARNAME CHANGESET SCRIPT
*/
static int SQLITE_TCLAPI test_sqlite3session_foreach(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
void *pChangeset;
int nChangeset;
sqlite3_changeset_iter *pIter;
int rc;
Tcl_Obj *pVarname;
Tcl_Obj *pCS;
Tcl_Obj *pScript;
int isCheckNext = 0;
int isInvert = 0;
TestStreamInput sStr;
memset(&sStr, 0, sizeof(sStr));
while( objc>1 ){
char *zOpt = Tcl_GetString(objv[1]);
int nOpt = strlen(zOpt);
if( zOpt[0]!='-' ) break;
if( nOpt<=7 && 0==sqlite3_strnicmp(zOpt, "-invert", nOpt) ){
isInvert = 1;
}else
if( nOpt<=5 && 0==sqlite3_strnicmp(zOpt, "-next", nOpt) ){
isCheckNext = 1;
}else{
break;
}
objv++;
objc--;
}
if( objc!=4 ){
Tcl_WrongNumArgs(
interp, 1, objv, "?-next? ?-invert? VARNAME CHANGESET SCRIPT");
return TCL_ERROR;
}
pVarname = objv[1];
pCS = objv[2];
pScript = objv[3];
pChangeset = (void *)Tcl_GetByteArrayFromObj(pCS, &nChangeset);
sStr.nStream = test_tcl_integer(interp, SESSION_STREAM_TCL_VAR);
if( isInvert ){
int f = SQLITE_CHANGESETSTART_INVERT;
if( sStr.nStream==0 ){
rc = sqlite3changeset_start_v2(&pIter, nChangeset, pChangeset, f);
}else{
void *pCtx = (void*)&sStr;
sStr.aData = (unsigned char*)pChangeset;
sStr.nData = nChangeset;
rc = sqlite3changeset_start_v2_strm(&pIter, testStreamInput, pCtx, f);
}
}else{
if( sStr.nStream==0 ){
rc = sqlite3changeset_start(&pIter, nChangeset, pChangeset);
}else{
sStr.aData = (unsigned char*)pChangeset;
sStr.nData = nChangeset;
rc = sqlite3changeset_start_strm(&pIter, testStreamInput, (void*)&sStr);
}
}
if( rc!=SQLITE_OK ){
return test_session_error(interp, rc, 0);
}
while( SQLITE_ROW==sqlite3changeset_next(pIter) ){
int nCol; /* Number of columns in table */
int nCol2; /* Number of columns in table */
int op; /* SQLITE_INSERT, UPDATE or DELETE */
const char *zTab; /* Name of table change applies to */
Tcl_Obj *pVar; /* Tcl value to set $VARNAME to */
Tcl_Obj *pOld; /* Vector of old.* values */
Tcl_Obj *pNew; /* Vector of new.* values */
int bIndirect;
char *zPK;
unsigned char *abPK;
int i;
/* Test that _fk_conflicts() returns SQLITE_MISUSE if called on this
** iterator. */
int nDummy;
if( SQLITE_MISUSE!=sqlite3changeset_fk_conflicts(pIter, &nDummy) ){
sqlite3changeset_finalize(pIter);
return TCL_ERROR;
}
sqlite3changeset_op(pIter, &zTab, &nCol, &op, &bIndirect);
pVar = Tcl_NewObj();
Tcl_ListObjAppendElement(0, pVar, Tcl_NewStringObj(
op==SQLITE_INSERT ? "INSERT" :
op==SQLITE_UPDATE ? "UPDATE" :
"DELETE", -1
));
Tcl_ListObjAppendElement(0, pVar, Tcl_NewStringObj(zTab, -1));
Tcl_ListObjAppendElement(0, pVar, Tcl_NewBooleanObj(bIndirect));
zPK = ckalloc(nCol+1);
memset(zPK, 0, nCol+1);
sqlite3changeset_pk(pIter, &abPK, &nCol2);
assert( nCol==nCol2 );
for(i=0; i<nCol; i++){
zPK[i] = (abPK[i] ? 'X' : '.');
}
Tcl_ListObjAppendElement(0, pVar, Tcl_NewStringObj(zPK, -1));
ckfree(zPK);
pOld = Tcl_NewObj();
if( op!=SQLITE_INSERT ){
for(i=0; i<nCol; i++){
sqlite3_value *pVal;
sqlite3changeset_old(pIter, i, &pVal);
test_append_value(pOld, pVal);
}
}
pNew = Tcl_NewObj();
if( op!=SQLITE_DELETE ){
for(i=0; i<nCol; i++){
sqlite3_value *pVal;
sqlite3changeset_new(pIter, i, &pVal);
test_append_value(pNew, pVal);
}
}
Tcl_ListObjAppendElement(0, pVar, pOld);
Tcl_ListObjAppendElement(0, pVar, pNew);
Tcl_ObjSetVar2(interp, pVarname, 0, pVar, 0);
rc = Tcl_EvalObjEx(interp, pScript, 0);
if( rc!=TCL_OK && rc!=TCL_CONTINUE ){
sqlite3changeset_finalize(pIter);
return rc==TCL_BREAK ? TCL_OK : rc;
}
}
if( isCheckNext ){
int rc2 = sqlite3changeset_next(pIter);
rc = sqlite3changeset_finalize(pIter);
assert( (rc2==SQLITE_DONE && rc==SQLITE_OK) || rc2==rc );
}else{
rc = sqlite3changeset_finalize(pIter);
}
if( rc!=SQLITE_OK ){
return test_session_error(interp, rc, 0);
}
return TCL_OK;
}
/*
** tclcmd: CMD configure REBASE-BLOB
** tclcmd: CMD rebase CHANGESET
** tclcmd: CMD delete
*/
static int SQLITE_TCLAPI test_rebaser_cmd(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
struct RebaseSubcmd {
const char *zSub;
int nArg;
const char *zMsg;
int iSub;
} aSub[] = {
{ "configure", 1, "REBASE-BLOB" }, /* 0 */
{ "delete", 0, "" }, /* 1 */
{ "rebase", 1, "CHANGESET" }, /* 2 */
{ 0 }
};
sqlite3_rebaser *p = (sqlite3_rebaser*)clientData;
int iSub;
int rc;
if( objc<2 ){
Tcl_WrongNumArgs(interp, 1, objv, "SUBCOMMAND ...");
return TCL_ERROR;
}
rc = Tcl_GetIndexFromObjStruct(interp,
objv[1], aSub, sizeof(aSub[0]), "sub-command", 0, &iSub
);
if( rc!=TCL_OK ) return rc;
if( objc!=2+aSub[iSub].nArg ){
Tcl_WrongNumArgs(interp, 2, objv, aSub[iSub].zMsg);
return TCL_ERROR;
}
assert( iSub==0 || iSub==1 || iSub==2 );
assert( rc==SQLITE_OK );
switch( iSub ){
case 0: { /* configure */
int nRebase = 0;
unsigned char *pRebase = Tcl_GetByteArrayFromObj(objv[2], &nRebase);
rc = sqlite3rebaser_configure(p, nRebase, pRebase);
break;
}
case 1: /* delete */
Tcl_DeleteCommand(interp, Tcl_GetString(objv[0]));
break;
default: { /* rebase */
TestStreamInput sStr; /* Input stream */
TestSessionsBlob sOut; /* Output blob */
memset(&sStr, 0, sizeof(sStr));
memset(&sOut, 0, sizeof(sOut));
sStr.aData = Tcl_GetByteArrayFromObj(objv[2], &sStr.nData);
sStr.nStream = test_tcl_integer(interp, SESSION_STREAM_TCL_VAR);
if( sStr.nStream ){
rc = sqlite3rebaser_rebase_strm(p,
testStreamInput, (void*)&sStr,
testStreamOutput, (void*)&sOut
);
}else{
rc = sqlite3rebaser_rebase(p, sStr.nData, sStr.aData, &sOut.n, &sOut.p);
}
if( rc==SQLITE_OK ){
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(sOut.p, sOut.n));
}
sqlite3_free(sOut.p);
break;
}
}
if( rc!=SQLITE_OK ){
return test_session_error(interp, rc, 0);
}
return TCL_OK;
}
static void SQLITE_TCLAPI test_rebaser_del(void *clientData){
sqlite3_rebaser *p = (sqlite3_rebaser*)clientData;
sqlite3rebaser_delete(p);
}
/*
** tclcmd: sqlite3rebaser_create NAME
*/
static int SQLITE_TCLAPI test_sqlite3rebaser_create(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
int rc;
sqlite3_rebaser *pNew = 0;
if( objc!=2 ){
Tcl_WrongNumArgs(interp, 1, objv, "NAME");
return SQLITE_ERROR;
}
rc = sqlite3rebaser_create(&pNew);
if( rc!=SQLITE_OK ){
return test_session_error(interp, rc, 0);
}
Tcl_CreateObjCommand(interp, Tcl_GetString(objv[1]), test_rebaser_cmd,
(ClientData)pNew, test_rebaser_del
);
Tcl_SetObjResult(interp, objv[1]);
return TCL_OK;
}
/*
** tclcmd: sqlite3rebaser_configure OP VALUE
*/
static int SQLITE_TCLAPI test_sqlite3session_config(
void * clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[]
){
struct ConfigOpt {
const char *zSub;
int op;
} aSub[] = {
{ "strm_size", SQLITE_SESSION_CONFIG_STRMSIZE },
{ "invalid", 0 },
{ 0 }
};
int rc;
int iSub;
int iVal;
if( objc!=3 ){
Tcl_WrongNumArgs(interp, 1, objv, "OP VALUE");
return SQLITE_ERROR;
}
rc = Tcl_GetIndexFromObjStruct(interp,
objv[1], aSub, sizeof(aSub[0]), "sub-command", 0, &iSub
);
if( rc!=TCL_OK ) return rc;
if( Tcl_GetIntFromObj(interp, objv[2], &iVal) ) return TCL_ERROR;
rc = sqlite3session_config(aSub[iSub].op, (void*)&iVal);
if( rc!=SQLITE_OK ){
return test_session_error(interp, rc, 0);
}
Tcl_SetObjResult(interp, Tcl_NewIntObj(iVal));
return TCL_OK;
}
int TestSession_Init(Tcl_Interp *interp){
struct Cmd {
const char *zCmd;
Tcl_ObjCmdProc *xProc;
} aCmd[] = {
{ "sqlite3session", test_sqlite3session },
{ "sqlite3session_foreach", test_sqlite3session_foreach },
{ "sqlite3changeset_invert", test_sqlite3changeset_invert },
{ "sqlite3changeset_concat", test_sqlite3changeset_concat },
{ "sqlite3changeset_apply", test_sqlite3changeset_apply },
{ "sqlite3changeset_apply_v2", test_sqlite3changeset_apply_v2 },
{ "sqlite3changeset_apply_replace_all",
test_sqlite3changeset_apply_replace_all },
{ "sql_exec_changeset", test_sql_exec_changeset },
{ "sqlite3rebaser_create", test_sqlite3rebaser_create },
{ "sqlite3session_config", test_sqlite3session_config },
};
int i;
for(i=0; i<sizeof(aCmd)/sizeof(struct Cmd); i++){
struct Cmd *p = &aCmd[i];
Tcl_CreateObjCommand(interp, p->zCmd, p->xProc, 0, 0);
}
return TCL_OK;
}
#endif /* SQLITE_TEST && SQLITE_SESSION && SQLITE_PREUPDATE_HOOK */
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