enum metaBigFileType isBigWigOrBed(char* filename)
/* Peak at a file to see if it's bigWig */
{
enum metaBigFileType ret = isNotBig;
bits32 magic;
struct udcFile* udc;
udc = udcFileOpen(filename, udcDefaultDir());
/* Read magic number at head of file and use it to see if we are proper file type, and
* see if we are byte-swapped. */
udcMustRead(udc, &magic, sizeof(magic));
if (magic == bigWigSig)
ret = isaBigWig;
else if (magic == bigBedSig)
ret = isaBigBed;
if (ret != isNotBig) {
udcFileClose(&udc);
return ret;
}
magic = byteSwap32(magic);
if (magic == bigWigSig)
ret = isaBigWig;
else if (magic == bigBedSig)
ret = isaBigBed;
udcFileClose(&udc);
return ret;
}
static int kuClose(knetFile *fp)
/* Close and free fp->udcf. */
{
verbose(2, "udcClose(%lu)\n", (unsigned long)(fp->udcf));
udcFileClose(&(fp->udcf));
return 0;
}
static void aswClose(struct annoStreamer **pVSelf)
/* Free wiggleDataStream and self. */
{
if (pVSelf == NULL)
return;
struct annoStreamWig *self = *(struct annoStreamWig **)pVSelf;
udcFileClose(&(self->wibFH));
freeMem(self->wibFile);
annoStreamerFree(pVSelf);
}
void bptFileClose(struct bptFile **pBpt)
/* Close down and deallocate index file. */
{
struct bptFile *bpt = *pBpt;
if (bpt != NULL)
{
udcFileClose(&bpt->udc);
freeMem(bpt->fileName);
bptFileDetach(pBpt);
}
}
void cirTreeFileClose(struct cirTreeFile **pCrt)
/* Close and free up cirTree file opened with cirTreeFileAttach. */
{
struct cirTreeFile *crt = *pCrt;
if (crt != NULL)
{
freez(&crt->fileName);
udcFileClose(&crt->udc);
cirTreeFileDetach(pCrt);
}
}
void crTreeFileClose(struct crTreeFile **pCrt)
/* Close and free up crTree file opened with crTreeFileAttach. */
{
struct crTreeFile *crt = *pCrt;
if (crt != NULL)
{
cirTreeFileDetach(&crt->cir);
bptFileDetach(&crt->chromBpt);
udcFileClose(&crt->udc);
freez(&crt->fileName);
freez(pCrt);
}
}
void bbiFileClose(struct bbiFile **pBwf)
/* Close down a big wig/big bed file. */
{
struct bbiFile *bwf = *pBwf;
if (bwf != NULL)
{
cirTreeFileDetach(&bwf->unzoomedCir);
slFreeList(&bwf->levelList);
slFreeList(&bwf->levelList);
bptFileDetach(&bwf->chromBpt);
udcFileClose(&bwf->udc);
freeMem(bwf->fileName);
freez(pBwf);
}
}
static void checkWibFile(struct annoStreamWig *self, char *wibFile)
/* If self doesn't have a .wib file name and handle open, or if the new wibFile is
* not the same as the old one, update self to use new wibFile. */
{
char *realWibFile = hReplaceGbdb(wibFile);
if (self->wibFile == NULL || !sameString(self->wibFile, realWibFile))
{
udcFileClose(&self->wibFH);
freeMem(self->wibFile);
self->wibFile = cloneString(realWibFile);
self->wibFH = udcFileMayOpen(self->wibFile, NULL);
if (self->wibFH == NULL)
errAbort("annoStreamWig: udc can't open wibFile '%s'", self->wibFile);
}
freeMem(realWibFile);
}
