Hands-off reading for OGGs.

[disorder] / lib / hreader.h

diff --git a/lib/hreader.h b/lib/hreader.h
index 8ef3a4079e4229662f674267d6a5168c3e2e5da9..46f8bd918b9e9ba9e17d1e821af8ed2c7509762a 100644 (file)
--- a/lib/hreader.h
+++ b/lib/hreader.h
@@ -29,6 +29,7 @@
  */
 struct hreader {
   const char *path;            /* file to read */
+  off_t size;                   /* file size */
   off_t read_offset;            /* for next hreader_read() */
   off_t buf_offset;             /* offset of start of buffer */
   char *buffer;                        /* input buffer */
@@ -39,8 +40,9 @@ struct hreader {
 /** @brief Initialize a hands-off reader
  * @param path File to read
  * @param h Reader to initialize
+ * @return 0 on success, -1 on error
  */
-void hreader_init(const char *path, struct hreader *h);
+int hreader_init(const char *path, struct hreader *h);
 
 /** @brief Read some bytes
  * @param h Reader to read from
@@ -59,6 +61,14 @@ int hreader_read(struct hreader *h, void *buffer, size_t n);
  */
 int hreader_pread(struct hreader *h, void *buffer, size_t n, off_t offset);
 
+/** @brief Seek within a file
+ * @param h Reader to seek
+ * @param offset Offset
+ * @param whence SEEK_*
+ * @return Result offset
+ */
+off_t hreader_seek(struct hreader *h, off_t offset, int whence);
+
 #endif /* HREADER_H */
 
 /*