rsys

commit 8fcaf9187ea756e2430bb6350a886ab1637dd09f
parent 944ed7ee99b37bcc47fc8df972c1a374fc46b414
Author: vaplv <vaplv@free.fr>
Date:   Thu, 25 May 2017 13:07:34 +0200

Fix the big_buffer resize function

The big buffer file was truncated without taking into account neither
the size of the big buffer header nor the size of the big buffer data.

Diffstat:
M
src/big_buffer.h
 | 
29
+++++++++++++++++++++++++++--

1 file changed, 27 insertions(+), 2 deletions(-)
diff --git a/src/big_buffer.h b/src/big_buffer.h
@@ -30,7 +30,7 @@ enum bigbuf_flag {
   BIGBUF_LOAD_STREAM = BIT(1)
 };
 
-extern LOCAL_SYM res_T
+RSYS_API res_T
 truncate__
   (FILE* file,
    const size_t sz);
@@ -372,7 +372,8 @@ BIGBUF_FUNC__(resize)(struct BIGBUF__* bigbuf, const size_t size)
   bigbuf->size = size;
   bigbuf->end = bigbuf->head + (long)(bigbuf->size*sizeof(BIGBUF_DATA));
 
-  res = truncate__(bigbuf->file, bigbuf->size);
+  res = truncate__
+    (bigbuf->file, bigbuf->size*sizeof(BIGBUF_DATA) + sizeof(size_t)/*header*/);
   if(res != RES_OK) goto error;
 
 exit:
@@ -382,6 +383,30 @@ error:
 }
 
 static INLINE res_T
+BIGBUF_FUNC__(set)
+  (struct BIGBUF__* bigbuf, const size_t at, const BIGBUF_DATA* data)
+{
+  res_T res = RES_OK;
+  ASSERT(bigbuf && data);
+
+  if(at >= bigbuf->size) {
+    res = RES_BAD_ARG;
+    goto error;
+  }
+
+  res = BIGBUF_FUNC__(fetch__)(bigbuf, at);
+  if(res != RES_OK) goto error;
+
+  ASSERT(at >= bigbuf->buf_index);
+  bigbuf->buf.data[at - bigbuf->buf_index] = *data;
+
+exit:
+  return res;
+error:
+  goto exit;
+}
+
+static INLINE res_T
 BIGBUF_FUNC__(at)(struct BIGBUF__* bigbuf, const size_t at, BIGBUF_DATA* data)
 {
   res_T res = RES_OK;