X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Frrd_resize.c;h=ac853184fa91460b5a58becb7a01eb054d26a904;hb=5fe8a76ab35012a0a5e1bd8cc5ff4a6f059f37f5;hp=b242b482f5ee5742681c195c1ac005349e83b2ff;hpb=b9c1a336b13d8093b9841848cbed687a6e01a5c3;p=rrdtool.git

diff --git a/src/rrd_resize.c b/src/rrd_resize.c
index b242b48..ac85318 100644
--- a/src/rrd_resize.c
+++ b/src/rrd_resize.c
@@ -1,5 +1,5 @@
 /*****************************************************************************
- * RRDtool 1.2.23  Copyright by Tobi Oetiker, 1997-2007
+ * RRDtool 1.3.2  Copyright by Tobi Oetiker, 1997-2008
  *****************************************************************************
  * rrd_resize.c Alters size of an RRA
  *****************************************************************************
@@ -60,7 +60,7 @@ int rrd_resize(
         rrd_free(&rrdold);
         return (-1);
     }
-    if (LockRRD(rrd_file->fd) != 0) {
+    if (rrd_lock(rrd_file) != 0) {
         rrd_set_error("could not lock original RRD");
         rrd_free(&rrdold);
         rrd_close(rrd_file);
@@ -74,18 +74,23 @@ int rrd_resize(
         return (-1);
     }
 
-    if (modify < 0) {
+    if (modify < 0)
         if ((long) rrdold.rra_def[target_rra].row_cnt <= -modify) {
             rrd_set_error("This RRA is not that big");
             rrd_free(&rrdold);
             rrd_close(rrd_file);
             return (-1);
         }
-    } else {
-        /* the size of the new file */
-        rrdnew.stat_head = rrd_file->file_len +
-            (rrdold.stat_head->ds_cnt * sizeof(rrd_value_t) * modify);
+    /* the size of the new file */
+    /* yes we are abusing the float cookie for this, aargh */
+    if ((rrdnew.stat_head = calloc(1, sizeof(stat_head_t))) == NULL) {
+        rrd_set_error("allocating stat_head for new RRD");
+        rrd_free(&rrdold);
+        rrd_close(rrd_file);
+        return (-1);
     }
+    rrdnew.stat_head->float_cookie = rrd_file->file_len +
+        (rrdold.stat_head->ds_cnt * sizeof(rrd_value_t) * modify);
     rrd_out_file = rrd_open(outfilename, &rrdnew, RRD_READWRITE | RRD_CREAT);
     if (rrd_out_file == NULL) {
         rrd_set_error("Can't create '%s': %s", outfilename,
@@ -93,7 +98,7 @@ int rrd_resize(
         rrd_free(&rrdnew);
         return (-1);
     }
-    if (LockRRD(rrd_out_file->fd) != 0) {
+    if (rrd_lock(rrd_out_file) != 0) {
         rrd_set_error("could not lock new RRD");
         rrd_free(&rrdold);
         rrd_close(rrd_file);
@@ -162,8 +167,8 @@ int rrd_resize(
         /* Adding extra rows; insert unknown values just after the
          ** current row number.
          */
-        l = rrdnew.stat_head->ds_cnt * (rrdnew.rra_ptr[target_rra].cur_row +
-                                        1);
+        l = rrdnew.stat_head->ds_cnt *
+            (rrdnew.rra_ptr[target_rra].cur_row + 1);
         while (l > 0) {
             rrd_read(rrd_file, &buffer, sizeof(rrd_value_t) * 1);
             rrd_write(rrd_out_file, &buffer, sizeof(rrd_value_t) * 1);
@@ -177,8 +182,8 @@ int rrd_resize(
             l--;
         }
 #else
-	/* for the mmap case, we did already fill the whole new file with DNAN
-	 * before we copied the old values, so nothing to do here.  */
+        /* for the mmap case, we did already fill the whole new file with DNAN
+         * before we copied the old values, so nothing to do here.  */
 #endif
     } else {
         /* Removing rows. Normally this would be just after the cursor
@@ -212,7 +217,8 @@ int rrd_resize(
             }
         }
         while (modify < 0) {
-            rrd_seek(rrd_file, sizeof(rrd_value_t) * rrdnew.stat_head->ds_cnt,
+            rrd_seek(rrd_file,
+                     sizeof(rrd_value_t) * rrdnew.stat_head->ds_cnt,
                      SEEK_CUR);
             rrdnew.rra_def[target_rra].row_cnt--;
             modify++;
@@ -243,7 +249,6 @@ int rrd_resize(
     rrd_free(&rrdold);
     rrd_close(rrd_file);
 
-    rrd_free(&rrdnew);
     rrd_close(rrd_out_file);
 
     return (0);