reverted r1601 and r1606 since r1601 introduced a non portable mremap and r1606 has...

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@1607 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/src/rrd.h b/src/rrd.h
index 5542a42..d87275e 100644 (file)
--- a/src/rrd.h
+++ b/src/rrd.h
@@ -369,18 +369,6 @@ extern    "C" {
     int       rrd_lock(
     rrd_file_t *file)
               RRD_DEPRECATED;
-    void      rrd_notify_row(
-    rrd_file_t *rrd_file,
-    int rra_idx,
-    unsigned long rra_row,
-    time_t rra_time)
-              RRD_DEPRECATED;
-    unsigned long rrd_select_initial_row(
-    rrd_file_t *rrd_file,
-    int rra_idx,
-    rra_def_t *rra
-    )
-              RRD_DEPRECATED;
 #endif                  /* defined(_RRD_TOOL_H) || defined(RRD_EXPORT_DEPRECATED) */
 
 #endif                  /* _RRDLIB_H */

diff --git a/src/rrd_create.c b/src/rrd_create.c
index 3b57c9f..9ee6896 100644 (file)
--- a/src/rrd_create.c
+++ b/src/rrd_create.c
@@ -24,6 +24,8 @@ void      parseGENERIC_DS(
     const char *def,
     rrd_t *rrd,
     int ds_idx);
+long int  rra_random_row(
+    rra_def_t *);
 
 static void rrd_free2(
     rrd_t *rrd);        /* our onwn copy, immmune to mmap */
@@ -669,31 +671,36 @@ int rrd_create_fn(
     rrd_t *rrd)
 {
     unsigned long i, ii;
+    int       rrd_file;
     rrd_value_t *unknown;
     int       unkn_cnt;
     rrd_file_t *rrd_file_dn;
     rrd_t     rrd_dn;
-    unsigned  rrd_flags = RRD_READWRITE | RRD_CREAT;
+    unsigned  flags = O_WRONLY | O_CREAT | O_TRUNC;
 
-    if ((rrd_file_dn = rrd_open(file_name, rrd, rrd_flags)) == NULL) {
+#if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
+    flags |= O_BINARY;
+#endif
+
+    if ((rrd_file = open(file_name, flags, 0666)) < 0) {
         rrd_set_error("creating '%s': %s", file_name, rrd_strerror(errno));
         rrd_free2(rrd);
         return (-1);
     }
 
-    rrd_write(rrd_file_dn, rrd->stat_head, sizeof(stat_head_t));
+    write(rrd_file, rrd->stat_head, sizeof(stat_head_t));
 
-    rrd_write(rrd_file_dn, rrd->ds_def, sizeof(ds_def_t) * rrd->stat_head->ds_cnt);
+    write(rrd_file, rrd->ds_def, sizeof(ds_def_t) * rrd->stat_head->ds_cnt);
 
-    rrd_write(rrd_file_dn, rrd->rra_def,
+    write(rrd_file, rrd->rra_def,
           sizeof(rra_def_t) * rrd->stat_head->rra_cnt);
 
-    rrd_write(rrd_file_dn, rrd->live_head, sizeof(live_head_t));
+    write(rrd_file, rrd->live_head, sizeof(live_head_t));
 
     if ((rrd->pdp_prep = calloc(1, sizeof(pdp_prep_t))) == NULL) {
         rrd_set_error("allocating pdp_prep");
         rrd_free2(rrd);
-        rrd_close(rrd_file_dn);
+        close(rrd_file);
         return (-1);
     }
 
@@ -704,12 +711,12 @@ int rrd_create_fn(
         rrd->live_head->last_up % rrd->stat_head->pdp_step;
 
     for (i = 0; i < rrd->stat_head->ds_cnt; i++)
-        rrd_write(rrd_file_dn, rrd->pdp_prep, sizeof(pdp_prep_t));
+        write(rrd_file, rrd->pdp_prep, sizeof(pdp_prep_t));
 
     if ((rrd->cdp_prep = calloc(1, sizeof(cdp_prep_t))) == NULL) {
         rrd_set_error("allocating cdp_prep");
         rrd_free2(rrd);
-        rrd_close(rrd_file_dn);
+        close(rrd_file);
         return (-1);
     }
 
@@ -746,7 +753,7 @@ int rrd_create_fn(
         }
 
         for (ii = 0; ii < rrd->stat_head->ds_cnt; ii++) {
-            rrd_write(rrd_file_dn, rrd->cdp_prep, sizeof(cdp_prep_t));
+            write(rrd_file, rrd->cdp_prep, sizeof(cdp_prep_t));
         }
     }
 
@@ -756,7 +763,7 @@ int rrd_create_fn(
     if ((rrd->rra_ptr = calloc(1, sizeof(rra_ptr_t))) == NULL) {
         rrd_set_error("allocating rra_ptr");
         rrd_free2(rrd);
-        rrd_close(rrd_file_dn);
+        close(rrd_file);
         return (-1);
     }
 
@@ -765,15 +772,15 @@ int rrd_create_fn(
      * would occur for cur_row = 1 because rrd_update increments
      * the pointer a priori. */
     for (i = 0; i < rrd->stat_head->rra_cnt; i++) {
-        rrd->rra_ptr->cur_row = rrd_select_initial_row(rrd_file_dn, i, &rrd->rra_def[i]);
-        rrd_write(rrd_file_dn, rrd->rra_ptr, sizeof(rra_ptr_t));
+        rrd->rra_ptr->cur_row = rra_random_row(&rrd->rra_def[i]);
+        write(rrd_file, rrd->rra_ptr, sizeof(rra_ptr_t));
     }
 
     /* write the empty data area */
     if ((unknown = (rrd_value_t *) malloc(512 * sizeof(rrd_value_t))) == NULL) {
         rrd_set_error("allocating unknown");
         rrd_free2(rrd);
-        rrd_close(rrd_file_dn);
+        close(rrd_file);
         return (-1);
     }
     for (i = 0; i < 512; ++i)
@@ -784,27 +791,22 @@ int rrd_create_fn(
         unkn_cnt += rrd->stat_head->ds_cnt * rrd->rra_def[i].row_cnt;
 
     while (unkn_cnt > 0) {
-        if(rrd_write(rrd_file_dn, unknown, sizeof(rrd_value_t) * min(unkn_cnt, 512)) < 0)
-        {
-            rrd_set_error("creating rrd: %s", rrd_strerror(errno));
-            return -1;
-        }
+        write(rrd_file, unknown, sizeof(rrd_value_t) * min(unkn_cnt, 512));
 
         unkn_cnt -= 512;
     }
     free(unknown);
+    fdatasync(rrd_file);
     rrd_free2(rrd);
-    if (rrd_close(rrd_file_dn) == -1) {
+    if (close(rrd_file) == -1) {
         rrd_set_error("creating rrd: %s", rrd_strerror(errno));
         return -1;
     }
     /* flush all we don't need out of the cache */
-    if((rrd_file_dn = rrd_open(file_name, &rrd_dn, RRD_READONLY)) != NULL)
-    {
-        rrd_dontneed(rrd_file_dn, &rrd_dn);
-        /* rrd_free(&rrd_dn); */
-        rrd_close(rrd_file_dn);
-    }
+    rrd_file_dn = rrd_open(file_name, &rrd_dn, RRD_READONLY);
+    rrd_dontneed(rrd_file_dn, &rrd_dn);
+    rrd_free(&rrd_dn);
+    rrd_close(rrd_file_dn);
     return (0);
 }
 
@@ -822,3 +824,15 @@ static void rrd_free2(
     free(rrd->rrd_value);
 }
 
+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;
+}

diff --git a/src/rrd_open.c b/src/rrd_open.c
index 6b2d6ac..f262413 100644 (file)
--- a/src/rrd_open.c
+++ b/src/rrd_open.c
@@ -54,10 +54,6 @@
 #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
@@ -83,14 +79,13 @@ rrd_file_t *rrd_open(
     rrd_file_t *rrd_file = NULL;
     off_t     newfile_size = 0;
 
-    if ((rdwr & RRD_CREAT) && (rdwr & RRD_CREAT_SETSIZE)) {
+    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);
     }
-    if(!(rdwr & RRD_CREAT))
-        rrd_init(rrd);
+    rrd_init(rrd);
     rrd_file = malloc(sizeof(rrd_file_t));
     if (rrd_file == NULL) {
         rrd_set_error("allocating rrd_file descriptor for '%s'", file_name);
@@ -175,13 +170,7 @@ rrd_file_t *rrd_open(
            }
         }
 */
-
 #ifdef HAVE_MMAP
-    if(rrd_file->file_len == 0 && (rdwr & RRD_CREAT))
-    {
-        rrd_file->file_start = NULL;
-        goto out_done;
-    }
     data = mmap(0, rrd_file->file_len, mm_prot, mm_flags,
                 rrd_file->fd, offset);
 
@@ -546,36 +535,10 @@ ssize_t rrd_write(
     size_t count)
 {
 #ifdef HAVE_MMAP
-    /* These flags are used if creating a new RRD */
-    int       mm_prot = PROT_READ | PROT_WRITE, mm_flags = MAP_SHARED;
-    int old_size = rrd_file->file_len;
-    int new_size = rrd_file->file_len;
     if (count == 0)
         return 0;
     if (buf == NULL)
         return -1;      /* EINVAL */
-    
-    if((rrd_file->pos + count) > old_size)
-    {
-        new_size = rrd_file->pos + count; 
-        rrd_file->file_len = new_size;
-        lseek(rrd_file->fd, new_size - 1, SEEK_SET);
-        write(rrd_file->fd, "\0", 1);   /* poke */
-        lseek(rrd_file->fd, 0, SEEK_SET);
-        if(rrd_file->file_start == NULL)
-        {
-            rrd_file->file_start = mmap(0, new_size, mm_prot, mm_flags,
-                rrd_file->fd, 0);
-        }
-        else
-            rrd_file->file_start = mremap(rrd_file->file_start, old_size, new_size, MREMAP_MAYMOVE); 
-
-        if (rrd_file->file_start == MAP_FAILED) {
-            rrd_set_error("m(re)maping file : %s", 
-                      rrd_strerror(errno));
-            return -1;
-        }
-    }
     memcpy(rrd_file->file_start + rrd_file->pos, buf, count);
     rrd_file->pos += count;
     return count;       /* mimmic write() semantics */
@@ -652,46 +615,3 @@ void rrd_freemem(
 {
     free(mem);
 }
-
-/*
- * rra_update informs us about the RRAs being updated
- * The low level storage API may use this information for
- * aligning RRAs within stripes, or other performance enhancements
- */
-void rrd_notify_row(
-    rrd_file_t *rrd_file,
-    int rra_idx,
-    unsigned long rra_row,
-    time_t rra_time)
-{
-}
-
-/*
- * This function is called when creating a new RRD
- * The storage implementation can use this opportunity to select
- * a sensible starting row within the file.
- * The default implementation is random, to ensure that all RRAs
- * don't change to a new disk block at the same time
- */
-unsigned long rrd_select_initial_row(
-    rrd_file_t *rrd_file,
-    int rra_idx,
-    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;
-}
-

diff --git a/src/rrd_resize.c b/src/rrd_resize.c
index 66d02af..57adbf0 100644 (file)
--- a/src/rrd_resize.c
+++ b/src/rrd_resize.c
@@ -93,7 +93,7 @@ int rrd_resize(
     }
     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 | RRD_CREAT_SETSIZE);
+    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,
                       rrd_strerror(errno));

diff --git a/src/rrd_tool.h b/src/rrd_tool.h
index c281979..43781da 100644 (file)
--- a/src/rrd_tool.h
+++ b/src/rrd_tool.h
@@ -97,7 +97,6 @@ extern    "C" {
 #define RRD_CREAT       (1<<2)
 #define RRD_READAHEAD   (1<<3)
 #define RRD_COPY        (1<<4)
-#define RRD_CREAT_SETSIZE (1<<5)
 
     enum cf_en cf_conv(
     const char *string);

diff --git a/src/rrd_update.c b/src/rrd_update.c
index d43740e..5e26055 100644 (file)
--- a/src/rrd_update.c
+++ b/src/rrd_update.c
@@ -1962,8 +1962,6 @@ static int write_to_rras(
                 (rrd_file, rrd, rra_idx, scratch_idx,
                  pcdp_summary, rra_time) == -1)
                 return -1;
-
-            rrd_notify_row(rrd_file, rra_idx, rra_pos_new, rra_time);
         }
 
         rra_start += rra_def->row_cnt * ds_cnt * sizeof(rrd_value_t);