introduced header_property in info output -- Daniel.Pocock barclayscapital.com

[rrdtool.git] / src / rrd_open.c

diff --git a/src/rrd_open.c b/src/rrd_open.c
index d2ec549..42426c6 100644 (file)
--- a/src/rrd_open.c
+++ b/src/rrd_open.c
@@ -16,10 +16,6 @@
 #define MEMBLK 8192
 
 #ifdef WIN32
-#      define random() rand()
-#      define srandom(x) srand(x)
-#      define getpid() 0
-
 #define        _LK_UNLCK       0       /* Unlock */
 #define        _LK_LOCK        1       /* Lock */
 #define        _LK_NBLCK       2       /* Non-blocking lock */
@@ -78,10 +74,6 @@
 #endif
 #endif
 
-long int  rra_random_row(
-    rra_def_t *);
-
-
 /* Open a database file, return its header and an open filehandle,
  * positioned to the first cdp in the first rra.
  * In the error path of rrd_open, only rrd_free(&rrd) has to be called
@@ -115,15 +107,7 @@ rrd_file_t *rrd_open(
     /* Are we creating a new file? */
     if((rdwr & RRD_CREAT) && (rrd->stat_head != NULL))
     {
-        header_len = \
-          sizeof(stat_head_t) + \
-          sizeof(ds_def_t) * rrd->stat_head->ds_cnt + \
-          sizeof(rra_def_t) * rrd->stat_head->rra_cnt + \
-          sizeof(time_t) + \
-          sizeof(live_head_t) + \
-          sizeof(pdp_prep_t) * rrd->stat_head->ds_cnt + \
-          sizeof(cdp_prep_t) * rrd->stat_head->ds_cnt * rrd->stat_head->rra_cnt + \
-          sizeof(rra_ptr_t) * rrd->stat_head->rra_cnt;
+        header_len = rrd_get_header_size(rrd);
 
         value_cnt = 0;
         for (ui = 0; ui < rrd->stat_head->rra_cnt; ui++)
@@ -542,7 +526,7 @@ void rrd_dontneed(
 #if defined DEBUG && DEBUG > 1
     mincore_print(rrd_file, "after");
 #endif
-#endif                          /* without madvise and posix_fadvise ist does not make much sense todo anything */
+#endif                          /* without madvise and posix_fadvise it does not make much sense todo anything */
 }
 
 
@@ -685,22 +669,6 @@ ssize_t rrd_write(
 }
 
 
-/* flush all data pending to be written to FD.  */
-
-void rrd_flush(
-    rrd_file_t *rrd_file)
-{
-#ifndef WIN32
-    rrd_simple_file_t *rrd_simple_file;
-    rrd_simple_file = (rrd_simple_file_t *)rrd_file->pvt;
-    if (fdatasync(rrd_simple_file->fd) != 0) {
-        rrd_set_error("flushing fd %d: %s", rrd_simple_file->fd,
-                      rrd_strerror(errno));
-    }
-#endif
-}
-
-
 /* Initialize RRD header.  */
 
 void rrd_init(
@@ -779,19 +747,5 @@ unsigned long rrd_select_initial_row(
     rra_def_t *rra
     )
 {
-    return rra_random_row(rra);
-}
-
-static int rand_init = 0;
-
-long int rra_random_row(
-    rra_def_t *rra)
-{
-    if (!rand_init) {
-        srandom((unsigned int) time(NULL) + (unsigned int) getpid());
-        rand_init++;
-    }
-
-    return random() % rra->row_cnt;
+    return rrd_random() % rra->row_cnt;
 }
-