From: Pavel Charvat <pchar@ucw.cz>
Date: Mon, 18 Apr 2011 11:34:08 +0000 (+0200)
Subject: fb-grow: Added a function to read the whole buffer anytime.
X-Git-Tag: v5.0~74^2~22
X-Git-Url: http://mj.ucw.cz/gitweb/?a=commitdiff_plain;h=2b444219ce6ae0b0bb74b41cb02d6bc26d3f7ad1;p=libucw.git

fb-grow: Added a function to read the whole buffer anytime.
---

diff --git a/ucw/fastbuf.h b/ucw/fastbuf.h
index dfd29d00..fc82a0e5 100644
--- a/ucw/fastbuf.h
+++ b/ucw/fastbuf.h
@@ -387,6 +387,7 @@ struct fastbuf *fbgrow_create(unsigned basic_size);	/** Create the growing buffe
 struct fastbuf *fbgrow_create_mp(struct mempool *mp, unsigned basic_size); /** Create the growing buffer pre-allocated to @basic_size bytes. **/
 void fbgrow_reset(struct fastbuf *b);			/** Reset stream and prepare for writing. **/
 void fbgrow_rewind(struct fastbuf *b);			/** Prepare for reading (of already written data). **/
+uns fbgrow_read_all(struct fastbuf *b, byte **buf);	/** Read the entire content of a growing fastbuf. Can be called in any state. **/
 
 /***
  * === Fastbuf on memory pools [[fbpool]]
diff --git a/ucw/fb-grow.c b/ucw/fb-grow.c
index 19880ed3..59eff2b7 100644
--- a/ucw/fb-grow.c
+++ b/ucw/fb-grow.c
@@ -111,6 +111,15 @@ void fbgrow_rewind(struct fastbuf *b)
   brewind(b);
 }
 
+uns fbgrow_read_all(struct fastbuf *b, byte **buf)
+{
+  byte *end = FB_GBUF(b)->end;
+  end = MAX(end, b->bptr);
+  if (*buf)
+    *buf = b->buffer;
+  return end - b->buffer;
+}
+
 #ifdef TEST
 
 int main(void)