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Add the sqlite3changeset_start_v2() - a new version of _start() that accepts a flags parameter - and a streaming equivalent to the sessions module. Also add the SQLITE_CHANGESETSTART_INVERT flag, used with start_v2() to invert a changeset while iterating through it.

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FossilOrigin-Name: cbedcb9aaefdfe00453efbdf0eac6c15e1f53bbe8fff2e7d534a5adf23be04f5
This commit is contained in:
dan
2018-10-20 13:48:09 +00:00
parent 9c18ef09a5
commit 46de072880
6 changed files with 143 additions and 29 deletions
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49
ext/session/test_session.c
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@ -981,31 +981,56 @@ static int SQLITE_TCLAPI test_sqlite3session_foreach(
Tcl_Obj *pCS;
Tcl_Obj *pScript;
int isCheckNext = 0;
int isInvert = 0;
TestStreamInput sStr;
memset(&sStr, 0, sizeof(sStr));
if( objc>1 ){
while( objc>1 ){
char *zOpt = Tcl_GetString(objv[1]);
isCheckNext = (strcmp(zOpt, "-next")==0);
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+isCheckNext ){
Tcl_WrongNumArgs(interp, 1, objv, "?-next? VARNAME CHANGESET SCRIPT");
if( objc!=4 ){
Tcl_WrongNumArgs(
interp, 1, objv, "?-next? ?-invert? VARNAME CHANGESET SCRIPT");
return TCL_ERROR;
}
pVarname = objv[1+isCheckNext];
pCS = objv[2+isCheckNext];
pScript = objv[3+isCheckNext];
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( sStr.nStream==0 ){
rc = sqlite3changeset_start(&pIter, nChangeset, pChangeset);
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{
sStr.aData = (unsigned char*)pChangeset;
sStr.nData = nChangeset;
rc = sqlite3changeset_start_strm(&pIter, testStreamInput, (void*)&sStr);
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);