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clean up sdk code.

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git-svn-id: https://profuse.googlecode.com/svn/branches/profuse_interim@375 aa027e90-d47c-11dd-86d7-074df07e0730
This commit is contained in:
ksherlock 2011-03-07 00:44:14 +00:00
parent 87d6070dcf
commit c6165e16d2
1 changed files with 50 additions and 57 deletions
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107
Device/SDKImage.cpp
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@ -63,8 +63,8 @@ struct record_thread
};
/*
* callback function to
*
* callback function to scan contents.
* (not used).
*
*/
static NuResult ContentFunction(NuArchive *archive, void *vp)
@ -105,22 +105,56 @@ static NuResult ContentFunction(NuArchive *archive, void *vp)
return kNuOK;
}
static NuThreadIdx FindDiskThread(const NuRecord *record)
static record_thread FindDiskImageThread(NuArchive *archive)
{
#undef __METHOD__
#define __METHOD__ "SDKImage::FindDiskThread"
#define __METHOD__ "SDKImage::FindThread"
for (unsigned i = 0; i < NuRecordGetNumThreads(record); ++i)
record_thread rt;
NuError e;
NuAttr recordCount;
e = NuGetAttr(archive, kNuAttrNumRecords, &recordCount);
if (e)
{
const NuThread *thread = NuGetThread(record, i);
throw NuFXException(__METHOD__ ": NuGetAttr", e);
}
for (unsigned position = 0; position < recordCount; ++position)
{
NuRecordIdx rIndex;
const NuRecord *record;
if (NuGetThreadID(thread) == kNuThreadIDDiskImage)
return thread->threadIdx;
}
e = NuGetRecordIdxByPosition(archive, position, &rIndex);
if (e)
{
throw NuFXException(__METHOD__ ": NuGetRecordIdxByPosition", e);
}
e = NuGetRecord(archive, rIndex, &record);
if (e)
{
throw NuFXException(__METHOD__ ": NuGetRecord", e);
}
for (unsigned i = 0; i < NuRecordGetNumThreads(record); ++i)
{
const NuThread *thread = NuGetThread(record, i);
if (NuGetThreadID(thread) == kNuThreadIDDiskImage)
{
rt.thread_index = thread->threadIdx;
rt.record_index = record->recordIdx;
return rt;
}
}
}
throw Exception(__METHOD__ ": not a disk image");
}
/*
* helper function to extract SDK image to /tmp and return a
* ProDOSDiskImage of the /tmp file.
@ -138,10 +172,10 @@ BlockDevicePointer SDKImage::Open(const char *name)
FILE *fp = NULL;
NuArchive *archive = NULL;
//const NuThread *thread = NULL;
const NuRecord *record = NULL;
//const NuRecord *record = NULL;
NuDataSink *sink = NULL;
NuRecordIdx rIndex;
NuThreadIdx tIndex;
//NuRecordIdx rIndex;
//NuThreadIdx tIndex;
NuError e;
@ -156,50 +190,8 @@ BlockDevicePointer SDKImage::Open(const char *name)
{
throw NuFXException(__METHOD__ ": NuOpenRO", e);
}
NuSetExtraData(archive, (void *)&rt);
// NuContents screws everything up???
/*
e = NuContents(archive, ContentFunction);
if (e == kNuErrAborted)
{
// ok!
}
else if (e == kNuErrNone)
{
throw Exception(__METHOD__ ": NuContents: not a disk image");
}
else
{
throw NuFXException(__METHOD__ ": NuContents", e);
}
printf("%ld, %ld\n", (long)rt.record_index, (long)rt.thread_index);
*/
e = NuGetRecordIdxByPosition(archive, 0, &rIndex);
if (e)
{
throw NuFXException(__METHOD__ ": NuGetRecordIdxByPosition", e);
}
printf("%ld\n", rIndex);
/* load up the record.
* I assume this is necessary since thread ids are only unique
* within a record, not across the entire archive
*/
e = NuGetRecord(archive, rIndex, &record);
if (e)
{
throw NuFXException(__METHOD__ ": NuGetRecord", e);
}
tIndex = FindDiskThread(record); // throws on error.
printf("%ld\n", tIndex);
rt = FindDiskImageThread(archive);
fd = mkstemp(tmp);
if (fd < 0)
@ -221,12 +213,13 @@ BlockDevicePointer SDKImage::Open(const char *name)
}
e = NuExtractThread(archive, tIndex, sink);
e = NuExtractThread(archive, rt.thread_index, sink);
if (e)
{
throw NuFXException(__METHOD__ ": NuExtractThread", e);
}
fprintf(stderr, "Extracted disk image to %s\n", tmp);
fclose(fp);
NuClose(archive);