X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Frrd_open.c;h=af08f90008c2d5979324e00d992e9b4019601eaf;hb=4a7a0cdd2f86e3a121a26b8b014949ac53596026;hp=e8aa1e484cafdba2fdd5240a87d6ae116a5bc6df;hpb=e357fb7d089224a089b6b34699f592a29a20fd59;p=rrdtool.git

diff --git a/src/rrd_open.c b/src/rrd_open.c
index e8aa1e4..af08f90 100644
--- a/src/rrd_open.c
+++ b/src/rrd_open.c
@@ -1,5 +1,5 @@
 /*****************************************************************************
- * RRDtool 1.3.1  Copyright by Tobi Oetiker, 1997-2008
+ * RRDtool 1.3.2  Copyright by Tobi Oetiker, 1997-2008
  *****************************************************************************
  * rrd_open.c  Open an RRD File
  *****************************************************************************
@@ -116,7 +116,6 @@ rrd_file_t *rrd_open(
         mm_flags |= MAP_NONBLOCK;   /* just populate ptes */
 #endif
     }
-
 #if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
     flags |= O_BINARY;
 #endif
@@ -322,9 +321,9 @@ void rrd_dontneed(
     rrd_t *rrd)
 {
 #if defined USE_MADVISE || defined HAVE_POSIX_FADVISE
-    unsigned long dontneed_start;
-    unsigned long rra_start;
-    unsigned long active_block;
+    off_t dontneed_start;
+    off_t rra_start;
+    off_t active_block;
     unsigned long i;
     ssize_t   _page_size = sysconf(_SC_PAGESIZE);
 
@@ -364,14 +363,19 @@ void rrd_dontneed(
             rrd->rra_def[i].row_cnt * rrd->stat_head->ds_cnt *
             sizeof(rrd_value_t);
     }
+
+    if (dontneed_start < rrd_file->file_len) {
 #ifdef USE_MADVISE
-    madvise(rrd_file->file_start + dontneed_start,
-            rrd_file->file_len - dontneed_start, MADV_DONTNEED);
+	    madvise(rrd_file->file_start + dontneed_start,
+		    rrd_file->file_len - dontneed_start, MADV_DONTNEED);
 #endif
 #ifdef HAVE_POSIX_FADVISE
-    posix_fadvise(rrd_file->fd, dontneed_start,
-                  rrd_file->file_len - dontneed_start, POSIX_FADV_DONTNEED);
+	    posix_fadvise(rrd_file->fd, dontneed_start,
+			  rrd_file->file_len - dontneed_start,
+			  POSIX_FADV_DONTNEED);
 #endif
+    }
+
 #if defined DEBUG && DEBUG > 1
     mincore_print(rrd_file, "after");
 #endif
@@ -433,7 +437,7 @@ off_t rrd_seek(
 
 /* Get current position in rrd_file.  */
 
-inline off_t rrd_tell(
+off_t rrd_tell(
     rrd_file_t *rrd_file)
 {
     return rrd_file->pos;
@@ -443,7 +447,7 @@ inline off_t rrd_tell(
 /* Read count bytes into buffer buf, starting at rrd_file->pos.
  * Returns the number of bytes read or <0 on error.  */
 
-inline ssize_t rrd_read(
+ssize_t rrd_read(
     rrd_file_t *rrd_file,
     void *buf,
     size_t count)
@@ -481,7 +485,7 @@ inline ssize_t rrd_read(
  * rrd_file->pos of rrd_file->fd.
  * Returns the number of bytes written or <0 on error.  */
 
-inline ssize_t rrd_write(
+ssize_t rrd_write(
     rrd_file_t *rrd_file,
     const void *buf,
     size_t count)
@@ -506,7 +510,7 @@ inline ssize_t rrd_write(
 
 /* flush all data pending to be written to FD.  */
 
-inline void rrd_flush(
+void rrd_flush(
     rrd_file_t *rrd_file)
 {
     if (fdatasync(rrd_file->fd) != 0) {