8185f1465a5fb067b3be590f6ecdc26c9bb1af62
kent
  Tue Mar 5 10:29:41 2013 -0800
Polishing code a little with no functional change.
diff --git src/inc/bbiFile.h src/inc/bbiFile.h
index d050c7b..c66b23e 100644
--- src/inc/bbiFile.h
+++ src/inc/bbiFile.h
@@ -344,32 +344,41 @@
 void bbiWriteFloat(FILE *f, float val);
 /* Write out floating point val to file.  Mostly to convert from double... */
 
 struct hash *bbiChromSizesFromFile(char *fileName);
 /* Read two column file into hash keyed by chrom. */
 
 bits64 bbiTotalSummarySize(struct bbiSummary *list);
 /* Return size on disk of all summaries. */
 
 void bbiChromUsageFree(struct bbiChromUsage **pUsage);
 /* free a single bbiChromUsage structure */
 
 void bbiChromUsageFreeList(struct bbiChromUsage **pList);
 /* free a list of bbiChromUsage structures */
 
+struct bbNamedFileChunk 
+/* A name associated with an offset into a possibly large file.  Used for extra
+ * indexes in bigBed files. */
+    {
+    char *name;	    /* Name of chunk. */
+    bits64 offset;  /* Start in file. */
+    bits64 size;    /* Size in file. */
+    };
+
 struct bbExIndexMaker
-/* A helper structure to make indexes beyond primary one */
+/* A helper structure to make indexes beyond primary one.  Just used for bigBeds */
     {
     bits16 indexCount;          /* Number of extra indexes. */
         /* Kind of wish next four fields,  all of which are arrays indexed
          * by the same thing,  were a single array of a structure instead. */
     bits16 *indexFields;        /* array of field ids, one for each extra index. */
     int *maxFieldSize;          /* array of maximum sizes seen for this field. */
     struct bbNamedFileChunk **chunkArrayArray; /* where we keep name/start/size triples */
     bits64 *fileOffsets;        /* array of file offsets where indexes starts. */
     int recordCount;            /* number of records in file. */
     };
 
 struct bbiChromUsage *bbiChromUsageFromBedFile(struct lineFile *lf, struct hash *chromSizesHash, 
 	struct bbExIndexMaker *eim, int *retMinDiff, double *retAveSize, bits64 *retBedCount);
 /* Go through bed file and collect chromosomes and statistics.  If eim parameter is non-NULL
  * collect max field sizes there too. */