* Return value is non-negative on success.
* Returns -1 on error.
*/
-int64_t bgzf_tell(BGZF* fp);
+#define bgzf_tell(fp) ((fp->block_address << 16) | (fp->block_offset & 0xFFFF))
/*
* Set the file to read from the location specified by pos, which must
void bgzf_set_cache_size(BGZF *fp, int cache_size);
int bgzf_check_EOF(BGZF *fp);
+int bgzf_read_block(BGZF* fp);
+int bgzf_flush(BGZF* fp);
+int bgzf_flush_try(BGZF *fp, int size);
#ifdef __cplusplus
}
#endif
+static inline int bgzf_getc(BGZF *fp)
+{
+ int c;
+ if (fp->block_offset >= fp->block_length) {
+ if (bgzf_read_block(fp) != 0) return -2; /* error */
+ if (fp->block_length == 0) return -1; /* end-of-file */
+ }
+ c = ((unsigned char*)fp->uncompressed_block)[fp->block_offset++];
+ if (fp->block_offset == fp->block_length) {
+#ifdef _USE_KNETFILE
+ fp->block_address = knet_tell(fp->x.fpr);
+#else
+ fp->block_address = ftello(fp->file);
+#endif
+ fp->block_offset = 0;
+ fp->block_length = 0;
+ }
+ return c;
+}
+
#endif