added comment on float cookie

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1155 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/program/src/rrd_open.c b/program/src/rrd_open.c
index 4b9a0f9220d126b9bc94b4ced97806a2fac25a65..a01b07543a88878556e21097b4c1c6985e0f6c69 100644 (file)
--- a/program/src/rrd_open.c
+++ b/program/src/rrd_open.c
@@ -90,6 +90,8 @@ rrd_file_t *rrd_open(
     off_t     newfile_size = 0;
 
     if (rdwr & RRD_CREAT) {
+        /* yes bad inline signaling alert, we are using the
+           floatcookie to pass the size in ... only used in resize */
         newfile_size = (off_t) rrd->stat_head->float_cookie;
         free(rrd->stat_head);
     }

diff --git a/program/src/rrd_resize.c b/program/src/rrd_resize.c
index 9dcfccab95da81afce3aa7a2f421564db69d7535..c45ec14304769dc09c07d1fa1550dedc1775eb36 100644 (file)
--- a/program/src/rrd_resize.c
+++ b/program/src/rrd_resize.c
@@ -82,6 +82,7 @@ int rrd_resize(
             return (-1);
         }
     /* 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);