- if(rrd_memory_mode != RRD_MEMORY_MODE_RAM) st = (RRDSET *)mymmap(fullfilename, size, ((rrd_memory_mode == RRD_MEMORY_MODE_MAP)?MAP_SHARED:MAP_PRIVATE), 0);
- if(st) {
- if(strcmp(st->magic, RRDSET_MAGIC) != 0) {
- errno = 0;
- info("Initializing file %s.", fullfilename);
- memset(st, 0, size);
- }
- else if(strcmp(st->id, fullid) != 0) {
- errno = 0;
- error("File %s contents are not for chart %s. Clearing it.", fullfilename, fullid);
- // munmap(st, size);
- // st = NULL;
- memset(st, 0, size);
- }
- else if(st->memsize != size || st->entries != entries) {
- errno = 0;
- error("File %s does not have the desired size. Clearing it.", fullfilename);
- memset(st, 0, size);
- }
- else if(st->update_every != update_every) {
- errno = 0;
- error("File %s does not have the desired update frequency. Clearing it.", fullfilename);
- memset(st, 0, size);
- }
- else if((now_realtime_sec() - st->last_updated.tv_sec) > update_every * entries) {
- errno = 0;
- error("File %s is too old. Clearing it.", fullfilename);
- memset(st, 0, size);
- }
+ if(host->rrd_memory_mode == RRD_MEMORY_MODE_SAVE || host->rrd_memory_mode == RRD_MEMORY_MODE_MAP) {
+ st = (RRDSET *) mymmap(fullfilename, size, ((host->rrd_memory_mode == RRD_MEMORY_MODE_MAP) ? MAP_SHARED : MAP_PRIVATE), 0);
+ if(st) {
+ memset(&st->avl, 0, sizeof(avl));
+ memset(&st->avlname, 0, sizeof(avl));
+ memset(&st->variables_root_index, 0, sizeof(avl_tree_lock));
+ memset(&st->dimensions_index, 0, sizeof(avl_tree_lock));
+ memset(&st->rrdset_rwlock, 0, sizeof(pthread_rwlock_t));
+
+ st->name = NULL;
+ st->type = NULL;
+ st->family = NULL;
+ st->context = NULL;
+ st->title = NULL;
+ st->units = NULL;
+ st->dimensions = NULL;
+ st->next = NULL;
+ st->variables = NULL;
+ st->alarms = NULL;
+ st->flags = 0x00000000;
+
+ if(strcmp(st->magic, RRDSET_MAGIC) != 0) {
+ errno = 0;
+ info("Initializing file %s.", fullfilename);
+ memset(st, 0, size);
+ }
+ else if(strcmp(st->id, fullid) != 0) {
+ errno = 0;
+ error("File %s contents are not for chart %s. Clearing it.", fullfilename, fullid);
+ // munmap(st, size);
+ // st = NULL;
+ memset(st, 0, size);
+ }
+ else if(st->memsize != size || st->entries != entries) {
+ errno = 0;
+ error("File %s does not have the desired size. Clearing it.", fullfilename);
+ memset(st, 0, size);
+ }
+ else if(st->update_every != update_every) {
+ errno = 0;
+ error("File %s does not have the desired update frequency. Clearing it.", fullfilename);
+ memset(st, 0, size);
+ }
+ else if((now - st->last_updated.tv_sec) > update_every * entries) {
+ errno = 0;
+ error("File %s is too old. Clearing it.", fullfilename);
+ memset(st, 0, size);
+ }
+ else if(st->last_updated.tv_sec > now + update_every) {
+ errno = 0;
+ error("File %s refers to the future. Clearing it.", fullfilename);
+ memset(st, 0, size);
+ }