I'm concerned about some of my code - I don't know how to figure out if it
is working correctly. I have a structure that includes a mem handle and I'm
not sure how exactly DMWrite works and whether it copies the data from the
mem handle or whether I should be grabbing the data out of the handle before
calling DmWrite....
Would someone please let me know 1) if this code should assumedly work and
2) how I might be able to browse a database and see if it actually is
storing what i think it is?
thanks
******************************code****************************
typedef struct {
MemHandle QuestionAnswers;
UInt8 sessionFinished;
} packed_question_type;
/*--------------------------------------------------------------------------
-----------------------------------------------------------
Function: SaveAnswersToDatabase
Desccription: saves answers from current session to database
Parameters: index for current session's record
Return: error code if necessary, otherwise 0
----------------------------------------------------------------------------
---------------------------------------------------------*/
Err SaveAnswersToDatabase(UInt16 index) {
MemHandle h;
MemPtr p;
Err error;
//allocate memory for the packed question's string
packedQuestion.QuestionAnswers = MemHandleNew(1);
//store whether the session was completed
packedQuestion.sessionFinished=theQuestion.sessionFinished;
//pack question for storage
PackQuestion(theQuestion);
//open questions database
error=OpenQuestionsDatabase();
//grab a handle to a new record
h = DmNewRecord(questionDatabaseRef, &index, sizeof(packedQuestion));
//if handle was aquired sucesfully
if (h) {
//lock handle and grab pointer
p = MemHandleLock(h);
error = DmWrite(p, 0, &packedQuestion, sizeof(packedQuestion));
//unlock the handle
MemPtrUnlock(p);
//release record and set dirty bit
DmReleaseRecord(questionDatabaseRef,index,true);
}//if (h)
//close questions database
error = CloseQuestionsDatabase();
//free memory used by packed question
MemHandleFree(packedQuestion.QuestionAnswers);
return error;
}//SaveAnswersToDatabase
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