From: oetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Date: Fri, 18 May 2007 11:56:34 +0000 (+0000)
Subject: * dropping in rrd_update is probably overkill since we may be dropping too much.
X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=9e72bd7d22cdb096abe35755a5dbcc5dc7686ee9;p=rrdtool.git

* dropping in rrd_update is probably overkill since we may be dropping too much.
* in create we have to flush before dropping.
* read fcntl.h after defining the __USE_XOPEN2K
* fix drop code in fetch ...


git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.2/program@1065 a5681a0c-68f1-0310-ab6d-d61299d08faa
---

diff --git a/configure.ac b/configure.ac
index f878dcc..202f370 100644
--- a/configure.ac
+++ b/configure.ac
@@ -72,8 +72,8 @@ char *strchr (), *strrchr ();
 
 /* enable posix_fadvise on linux */
 #if defined(HAVE_POSIX_FADVISE) && defined(HAVE_FCNTL_H)
-#include <fcntl.h>
 #define __USE_XOPEN2K 1
+#include <fcntl.h>
 #endif
 
 #ifdef NO_NULL_REALLOC
diff --git a/src/rrd_create.c b/src/rrd_create.c
index 6f4c804..e9ac860 100644
--- a/src/rrd_create.c
+++ b/src/rrd_create.c
@@ -699,6 +699,7 @@ rrd_create_fn(const char *file_name, rrd_t *rrd)
        a single rrd file is not too large, but I assume this should not be the case
        in general. Otherwhise we would have to sync and release while writing all
        the unknown data. */
+    fflush(rrd_file);
     fdatasync(fileno(rrd_file));
     if (0 != posix_fadvise(fileno(rrd_file), rrd_head_size, 0, POSIX_FADV_DONTNEED)) {
         rrd_set_error("setting POSIX_FADV_DONTNEED on '%s': %s",file_name, rrd_strerror(errno));
diff --git a/src/rrd_fetch.c b/src/rrd_fetch.c
index 0676b4a..1b85edb 100644
--- a/src/rrd_fetch.c
+++ b/src/rrd_fetch.c
@@ -459,7 +459,7 @@ fprintf(stderr,"partial match, not best\n");
 #ifdef HAVE_POSIX_FADVISE
        /* don't pollute the buffer cache with data read from the file. We do this while reading to 
           keep damage minimal */
-       if (0 != posix_fadvise(fileno(in_file), rrd_head_size, ftell(in_file), POSIX_FADV_DONTNEED)) {
+       if (0 != posix_fadvise(fileno(in_file), rrd_head_size, 0, POSIX_FADV_DONTNEED)) {
            rrd_set_error("setting POSIX_FADV_DONTNEED on '%s': %s",filename, rrd_strerror(errno));
            fclose(in_file);
            return(-1);
diff --git a/src/rrd_update.c b/src/rrd_update.c
index 91a1d1b..5f27c2f 100644
--- a/src/rrd_update.c
+++ b/src/rrd_update.c
@@ -1195,7 +1195,7 @@ _rrd_update(const char *filename, const char *tmplt, int argc, const char **argv
 		i < rrd.stat_head->rra_cnt;
 	    rra_start += rrd.rra_def[i].row_cnt * rrd.stat_head -> ds_cnt * sizeof(rrd_value_t),
 		i++) {
-		/* is there anything to write for this RRA? If not, continue. */
+		/* is th5Aere anything to write for this RRA? If not, continue. */
         if (rra_step_cnt[i] == 0) continue;
 
 		/* write the first row */
@@ -1398,7 +1398,8 @@ _rrd_update(const char *filename, const char *tmplt, int argc, const char **argv
 	fclose(rrd_file);
 	return(-1);
     }
-#ifdef HAVE_POSIX_FADVISE
+    
+#ifdef HAVE_POSIX_FADVISExxx
 
     /* with update we have write ops, so they will probably not be done by now, this means
        the buffers will not get freed. But calling this for the whole file - header
@@ -1449,7 +1450,7 @@ _rrd_update(const char *filename, const char *tmplt, int argc, const char **argv
 	    rra_start += rrd.rra_def[i].row_cnt
 	      *rrd.stat_head->ds_cnt*sizeof(rrd_value_t);
 	  }
-#ifdef HAVE_POSIX_FADVISE
+#ifdef HAVE_POSIX_FADVISExxx
           /* same procedure as above ... */
           if (0 != posix_fadvise(fileno(rrd_file), rra_begin, 0, POSIX_FADV_DONTNEED)) {
              rrd_set_error("setting POSIX_FADV_DONTNEED on '%s': %s",filename, rrd_strerror(errno));