+++ /dev/null
-/*****************************************************************************
- * RRDtool 1.0.33 Copyright Tobias Oetiker, 1997 - 2000
- *****************************************************************************
- * rrd_update.c RRD Update Function
- *****************************************************************************
- * $Id$
- * $Log$
- * Revision 1.1 2001/02/25 22:25:06 oetiker
- * Initial revision
- *
- *****************************************************************************/
-
-#include "rrd_tool.h"
-#include <sys/types.h>
-#include <fcntl.h>
-
-#ifdef WIN32
- #include <sys/locking.h>
- #include <sys/stat.h>
- #include <io.h>
-#endif
-
-
-/* Prototypes */
-int LockRRD(FILE *rrd_file);
-
-/*#define DEBUG */
-
-
-#ifdef STANDALONE
-int
-main(int argc, char **argv){
- rrd_update(argc,argv);
- if (rrd_test_error()) {
- printf("RRDtool 1.0.33 Copyright 1997-2000 by Tobias Oetiker <tobi@oetiker.ch>\n\n"
- "Usage: rrdupdate filename\n"
- "\t\t\t[--template|-t ds-name:ds-name:...]\n"
- "\t\t\ttime|N:value[:value...]\n\n"
- "\t\t\t[ time:value[:value...] ..]\n\n");
-
- printf("ERROR: %s\n",rrd_get_error());
- rrd_clear_error();
- return 1;
- }
- return 0;
-}
-#endif
-
-int
-rrd_update(int argc, char **argv)
-{
-
- int arg_i = 2;
- long i,ii,iii;
-
- unsigned long rra_begin; /* byte pointer to the rra
- * area in the rrd file. this
- * pointer never changes value */
- unsigned long rra_start; /* byte pointer to the rra
- * area in the rrd file. this
- * pointer changes as each rrd is
- * processed. */
- unsigned long rra_current; /* byte pointer to the current write
- * spot in the rrd file. */
- unsigned long rra_pos_tmp; /* temporary byte pointer. */
- unsigned long interval,
- pre_int,post_int; /* interval between this and
- * the last run */
- unsigned long proc_pdp_st; /* which pdp_st was the last
- * to be processed */
- unsigned long occu_pdp_st; /* when was the pdp_st
- * before the last update
- * time */
- unsigned long proc_pdp_age; /* how old was the data in
- * the pdp prep area when it
- * was last updated */
- unsigned long occu_pdp_age; /* how long ago was the last
- * pdp_step time */
- unsigned long pdp_st; /* helper for cdp_prep
- * processing */
- rrd_value_t *pdp_new; /* prepare the incoming data
- * to be added the the
- * existing entry */
- rrd_value_t *pdp_temp; /* prepare the pdp values
- * to be added the the
- * cdp values */
-
- long *tmpl_idx; /* index representing the settings
- transported by the template index */
- long tmpl_cnt = 2; /* time and data */
-
- FILE *rrd_file;
- rrd_t rrd;
- time_t current_time = time(NULL);
- char **updvals;
- int wrote_to_file = 0;
- char *template = NULL;
-
-
- while (1) {
- static struct option long_options[] =
- {
- {"template", required_argument, 0, 't'},
- {0,0,0,0}
- };
- int option_index = 0;
- int opt;
- opt = getopt_long(argc, argv, "t:",
- long_options, &option_index);
-
- if (opt == EOF)
- break;
-
- switch(opt) {
- case 't':
- template = optarg;
- break;
-
- case '?':
- rrd_set_error("unknown option '%s'",argv[optind-1]);
- rrd_free(&rrd);
- return(-1);
- }
- }
-
- /* need at least 2 arguments: filename, data. */
- if (argc-optind < 2) {
- rrd_set_error("Not enough arguments");
- return -1;
- }
-
- if(rrd_open(argv[optind],&rrd_file,&rrd, RRD_READWRITE)==-1){
- return -1;
- }
- rra_current = rra_start = rra_begin = ftell(rrd_file);
- /* This is defined in the ANSI C standard, section 7.9.5.3:
-
- When a file is opened with udpate mode ('+' as the second
- or third character in the ... list of mode argument
- variables), both input and ouptut may be performed on the
- associated stream. However, ... input may not be directly
- followed by output without an intervening call to a file
- positioning function, unless the input oepration encounters
- end-of-file. */
- fseek(rrd_file, 0, SEEK_CUR);
-
-
- /* get exclusive lock to whole file.
- * lock gets removed when we close the file.
- */
- if (LockRRD(rrd_file) != 0) {
- rrd_set_error("could not lock RRD");
- rrd_free(&rrd);
- fclose(rrd_file);
- return(-1);
- }
-
- if((updvals = malloc( sizeof(char*) * (rrd.stat_head->ds_cnt+1)))==NULL){
- rrd_set_error("allocating updvals pointer array");
- rrd_free(&rrd);
- fclose(rrd_file);
- return(-1);
- }
-
- if ((pdp_temp = malloc(sizeof(rrd_value_t)
- *rrd.stat_head->ds_cnt))==NULL){
- rrd_set_error("allocating pdp_temp ...");
- free(updvals);
- rrd_free(&rrd);
- fclose(rrd_file);
- return(-1);
- }
-
- if ((tmpl_idx = malloc(sizeof(unsigned long)
- *(rrd.stat_head->ds_cnt+1)))==NULL){
- rrd_set_error("allocating tmpl_idx ...");
- free(pdp_temp);
- free(updvals);
- rrd_free(&rrd);
- fclose(rrd_file);
- return(-1);
- }
- /* initialize template redirector */
- /* default config
- tmpl_idx[0] -> 0; (time)
- tmpl_idx[1] -> 1; (DS 0)
- tmpl_idx[2] -> 2; (DS 1)
- tmpl_idx[3] -> 3; (DS 2)
- ... */
- for (i=0;i<=rrd.stat_head->ds_cnt;i++) tmpl_idx[i]=i;
- tmpl_cnt=rrd.stat_head->ds_cnt+1;
- if (template) {
- char *dsname;
- int tmpl_len;
- dsname = template;
- tmpl_cnt = 1; /* the first entry is the time */
- tmpl_len = strlen(template);
- for(i=0;i<=tmpl_len ;i++) {
- if (template[i] == ':' || template[i] == '\0') {
- template[i] = '\0';
- if (tmpl_cnt>rrd.stat_head->ds_cnt){
- rrd_set_error("Template contains more DS definitions than RRD");
- free(updvals); free(pdp_temp);
- free(tmpl_idx); rrd_free(&rrd);
- fclose(rrd_file); return(-1);
- }
- if ((tmpl_idx[tmpl_cnt++] = ds_match(&rrd,dsname)) == -1){
- rrd_set_error("unknown DS name '%s'",dsname);
- free(updvals); free(pdp_temp);
- free(tmpl_idx); rrd_free(&rrd);
- fclose(rrd_file); return(-1);
- } else {
- /* the first element is always the time */
- tmpl_idx[tmpl_cnt-1]++;
- /* go to the next entry on the template */
- dsname = &template[i+1];
- /* fix the damage we did before */
- if (i<tmpl_len) {
- template[i]=':';
- }
-
- }
- }
- }
- }
- if ((pdp_new = malloc(sizeof(rrd_value_t)
- *rrd.stat_head->ds_cnt))==NULL){
- rrd_set_error("allocating pdp_new ...");
- free(updvals);
- free(pdp_temp);
- free(tmpl_idx);
- rrd_free(&rrd);
- fclose(rrd_file);
- return(-1);
- }
-
- /* loop through the arguments. */
- for(arg_i=optind+1; arg_i<argc;arg_i++) {
- char *stepper = malloc((strlen(argv[arg_i])+1)*sizeof(char));
- char *step_start = stepper;
- if (stepper == NULL){
- rrd_set_error("faild duplication argv entry");
- free(updvals);
- free(pdp_temp);
- free(tmpl_idx);
- rrd_free(&rrd);
- fclose(rrd_file);
- return(-1);
- }
- /* initialize all ds input to unknown except the first one
- which has always got to be set */
- for(ii=1;ii<=rrd.stat_head->ds_cnt;ii++) updvals[ii] = "U";
- ii=0;
- strcpy(stepper,argv[arg_i]);
- updvals[0]=stepper;
- while (*stepper) {
- if (*stepper == ':') {
- *stepper = '\0';
- ii++;
- if (ii<tmpl_cnt){
- updvals[tmpl_idx[ii]] = stepper+1;
- }
- }
- stepper++;
- }
-
- if (ii != tmpl_cnt-1) {
- rrd_set_error("expected %lu data source readings (got %lu) from %s:...",
- tmpl_cnt-1, ii, argv[arg_i]);
- free(step_start);
- break;
- }
-
- /* get the time from the reading ... handle N */
- if (strcmp(updvals[0],"N")==0){
- current_time = time(NULL);
- } else {
- current_time = atol(updvals[0]);
- }
-
- if(current_time <= rrd.live_head->last_up){
- rrd_set_error("illegal attempt to update using time %ld when "
- "last update time is %ld (minimum one second step)",
- current_time, rrd.live_head->last_up);
- free(step_start);
- break;
- }
-
-
- /* seek to the beginning of the rrd's */
- if (rra_current != rra_begin) {
- if(fseek(rrd_file, rra_begin, SEEK_SET) != 0) {
- rrd_set_error("seek error in rrd");
- free(step_start);
- break;
- }
- rra_current = rra_begin;
- }
- rra_start = rra_begin;
-
- /* when was the current pdp started */
- proc_pdp_age = rrd.live_head->last_up % rrd.stat_head->pdp_step;
- proc_pdp_st = rrd.live_head->last_up - proc_pdp_age;
-
- /* when did the last pdp_st occur */
- occu_pdp_age = current_time % rrd.stat_head->pdp_step;
- occu_pdp_st = current_time - occu_pdp_age;
- interval = current_time - rrd.live_head->last_up;
-
- if (occu_pdp_st > proc_pdp_st){
- /* OK we passed the pdp_st moment*/
- pre_int = occu_pdp_st - rrd.live_head->last_up; /* how much of the input data
- * occurred before the latest
- * pdp_st moment*/
- post_int = occu_pdp_age; /* how much after it */
- } else {
- pre_int = interval;
- post_int = 0;
- }
-
-#ifdef DEBUG
- printf(
- "proc_pdp_age %lu\t"
- "proc_pdp_st %lu\t"
- "occu_pfp_age %lu\t"
- "occu_pdp_st %lu\t"
- "int %lu\t"
- "pre_int %lu\t"
- "post_int %lu\n", proc_pdp_age, proc_pdp_st,
- occu_pdp_age, occu_pdp_st,
- interval, pre_int, post_int);
-#endif
-
- /* process the data sources and update the pdp_prep
- * area accordingly */
- for(i=0;i<rrd.stat_head->ds_cnt;i++){
- enum dst_en dst_idx;
- dst_idx= dst_conv(rrd.ds_def[i].dst);
- if((updvals[i+1][0] != 'U') &&
- rrd.ds_def[i].par[DS_mrhb_cnt].u_cnt >= interval) {
- double rate = DNAN;
- /* the data source type defines how to process the data */
- /* pdp_temp contains rate * time ... eg the bytes
- * transferred during the interval. Doing it this way saves
- * a lot of math operations */
-
-
- switch(dst_idx){
- case DST_COUNTER:
- case DST_DERIVE:
- if(rrd.pdp_prep[i].last_ds[0] != 'U'){
- pdp_new[i]= rrd_diff(updvals[i+1],rrd.pdp_prep[i].last_ds);
- if(dst_idx == DST_COUNTER) {
- /* simple overflow catcher sugestet by andres kroonmaa */
- /* this will fail terribly for non 32 or 64 bit counters ... */
- /* are there any others in SNMP land ? */
- if (pdp_new[i] < (double)0.0 )
- pdp_new[i] += (double)4294967296.0 ; /* 2^32 */
- if (pdp_new[i] < (double)0.0 )
- pdp_new[i] += (double)18446744069414584320.0; /* 2^64-2^32 */;
- }
- rate = pdp_new[i] / interval;
- }
- else {
- pdp_new[i]= DNAN;
- }
- break;
- case DST_ABSOLUTE:
- pdp_new[i]= atof(updvals[i+1]);
- rate = pdp_new[i] / interval;
- break;
- case DST_GAUGE:
- pdp_new[i] = atof(updvals[i+1]) * interval;
- rate = pdp_new[i] / interval;
- break;
- default:
- rrd_set_error("rrd contains unknown DS type : '%s'",
- rrd.ds_def[i].dst);
- break;
- }
- /* break out of this for loop if the error string is set */
- if (rrd_test_error()){
- break;
- }
- /* make sure pdp_temp is neither too large or too small
- * if any of these occur it becomes unknown ...
- * sorry folks ... */
- if ( ! isnan(rate) &&
- (( ! isnan(rrd.ds_def[i].par[DS_max_val].u_val) &&
- rate > rrd.ds_def[i].par[DS_max_val].u_val ) ||
- ( ! isnan(rrd.ds_def[i].par[DS_min_val].u_val) &&
- rate < rrd.ds_def[i].par[DS_min_val].u_val ))){
- pdp_new[i] = DNAN;
- }
- } else {
- /* no news is news all the same */
- pdp_new[i] = DNAN;
- }
-
- /* make a copy of the command line argument for the next run */
-#ifdef DEBUG
- fprintf(stderr,
- "prep ds[%lu]\t"
- "last_arg '%s'\t"
- "this_arg '%s'\t"
- "pdp_new %10.2f\n",
- i,
- rrd.pdp_prep[i].last_ds,
- updvals[i+1], pdp_new[i]);
-#endif
- if(dst_idx == DST_COUNTER || dst_idx == DST_DERIVE){
- strncpy(rrd.pdp_prep[i].last_ds,
- updvals[i+1],LAST_DS_LEN-1);
- rrd.pdp_prep[i].last_ds[LAST_DS_LEN-1]='\0';
- }
- }
- /* break out of the argument parsing loop if the error_string is set */
- if (rrd_test_error()){
- free(step_start);
- break;
- }
- /* has a pdp_st moment occurred since the last run ? */
-
- if (proc_pdp_st == occu_pdp_st){
- /* no we have not passed a pdp_st moment. therefore update is simple */
-
- for(i=0;i<rrd.stat_head->ds_cnt;i++){
- if(isnan(pdp_new[i]))
- rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt += interval;
- else
- rrd.pdp_prep[i].scratch[PDP_val].u_val+= pdp_new[i];
-#ifdef DEBUG
- fprintf(stderr,
- "NO PDP ds[%lu]\t"
- "value %10.2f\t"
- "unkn_sec %5lu\n",
- i,
- rrd.pdp_prep[i].scratch[PDP_val].u_val,
- rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt);
-#endif
- }
- } else {
- /* an pdp_st has occurred. */
-
- /* in pdp_prep[].scratch[PDP_val].u_val we have collected rate*seconds which
- * occurred up to the last run.
- pdp_new[] contains rate*seconds from the latest run.
- pdp_temp[] will contain the rate for cdp */
-
-
- for(i=0;i<rrd.stat_head->ds_cnt;i++){
- /* update pdp_prep to the current pdp_st */
- if(isnan(pdp_new[i]))
- rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt += pre_int;
- else
- rrd.pdp_prep[i].scratch[PDP_val].u_val +=
- pdp_new[i]/(double)interval*(double)pre_int;
-
- /* if too much of the pdp_prep is unknown we dump it */
- if ((rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt
- > rrd.ds_def[i].par[DS_mrhb_cnt].u_cnt) ||
- (occu_pdp_st-proc_pdp_st <=
- rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt)) {
- pdp_temp[i] = DNAN;
- } else {
- pdp_temp[i] = rrd.pdp_prep[i].scratch[PDP_val].u_val
- / (double)( occu_pdp_st
- - proc_pdp_st
- - rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt);
- }
- /* make pdp_prep ready for the next run */
- if(isnan(pdp_new[i])){
- rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt = post_int;
- rrd.pdp_prep[i].scratch[PDP_val].u_val = 0.0;
- } else {
- rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt = 0;
- rrd.pdp_prep[i].scratch[PDP_val].u_val =
- pdp_new[i]/(double)interval*(double)post_int;
- }
-
-#ifdef DEBUG
- fprintf(stderr,
- "PDP UPD ds[%lu]\t"
- "pdp_temp %10.2f\t"
- "new_prep %10.2f\t"
- "new_unkn_sec %5lu\n",
- i, pdp_temp[i],
- rrd.pdp_prep[i].scratch[PDP_val].u_val,
- rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt);
-#endif
- }
-
-
- /* now we have to integrate this data into the cdp_prep areas */
- /* going through the round robin archives */
- for(i = 0;
- i < rrd.stat_head->rra_cnt;
- i++){
- enum cf_en current_cf = cf_conv(rrd.rra_def[i].cf_nam);
- /* going through all pdp_st moments which have occurred
- * since the last run */
- for(pdp_st = proc_pdp_st+rrd.stat_head->pdp_step;
- pdp_st <= occu_pdp_st;
- pdp_st += rrd.stat_head->pdp_step){
-
-#ifdef DEBUG
- fprintf(stderr,"RRA %lu STEP %lu\n",i,pdp_st);
-#endif
-
- if((pdp_st %
- (rrd.rra_def[i].pdp_cnt*rrd.stat_head->pdp_step)) == 0){
-
- /* later on the cdp_prep values will be transferred to
- * the rra. we want to be in the right place. */
- rrd.rra_ptr[i].cur_row++;
- if (rrd.rra_ptr[i].cur_row >= rrd.rra_def[i].row_cnt)
- /* oops ... we have to wrap the beast ... */
- rrd.rra_ptr[i].cur_row=0;
-#ifdef DEBUG
- fprintf(stderr," -- RRA Preseek %ld\n",ftell(rrd_file));
-#endif
- /* determine if a seek is even needed. */
- rra_pos_tmp = rra_start +
- rrd.stat_head->ds_cnt*rrd.rra_ptr[i].cur_row*sizeof(rrd_value_t);
- if(rra_pos_tmp != rra_current) {
- if(fseek(rrd_file, rra_pos_tmp, SEEK_SET) != 0){
- rrd_set_error("seek error in rrd");
- break;
- }
- rra_current = rra_pos_tmp;
- }
-#ifdef DEBUG
- fprintf(stderr," -- RRA Postseek %ld\n",ftell(rrd_file));
-#endif
- }
-
- for(ii = 0;
- ii < rrd.stat_head->ds_cnt;
- ii++){
- iii=i*rrd.stat_head->ds_cnt+ii;
-
- /* the contents of cdp_prep[].scratch[CDP_val].u_val depends
- * on the consolidation function ! */
-
- if (isnan(pdp_temp[ii])){ /* pdp is unknown */
- rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt++;
-#ifdef DEBUG
- fprintf(stderr," ** UNKNOWN ADD %lu\n",
- rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt);
-#endif
- } else {
- if (isnan(rrd.cdp_prep[iii].scratch[CDP_val].u_val)){
- /* cdp_prep is unknown when it does not
- * yet contain data. It can not be zero for
- * things like mim and max consolidation
- * functions */
-#ifdef DEBUG
- fprintf(stderr," ** INIT CDP %e\n", pdp_temp[ii]);
-#endif
- rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii];
- }
- else {
- switch (current_cf){
- case CF_AVERAGE:
- rrd.cdp_prep[iii].scratch[CDP_val].u_val+=pdp_temp[ii];
-#ifdef DEBUG
- fprintf(stderr," ** AVERAGE %e\n",
- rrd.cdp_prep[iii].scratch[CDP_val].u_val);
-#endif
- break;
- case CF_MINIMUM:
- if (pdp_temp[ii] < rrd.cdp_prep[iii].scratch[CDP_val].u_val)
- rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii];
-#ifdef DEBUG
- fprintf(stderr," ** MINIMUM %e\n",
- rrd.cdp_prep[iii].scratch[CDP_val].u_val);
-#endif
- break;
- case CF_MAXIMUM:
- if (pdp_temp[ii] > rrd.cdp_prep[iii].scratch[CDP_val].u_val)
- rrd.cdp_prep[iii].scratch[CDP_val].u_val = pdp_temp[ii];
-#ifdef DEBUG
- fprintf(stderr," ** MAXIMUM %e\n",
- rrd.cdp_prep[iii].scratch[CDP_val].u_val);
-#endif
- break;
- case CF_LAST:
- rrd.cdp_prep[iii].scratch[CDP_val].u_val=pdp_temp[ii];
-#ifdef DEBUG
- fprintf(stderr," ** LAST %e\n",
- rrd.cdp_prep[iii].scratch[CDP_val].u_val);
-#endif
- break;
- default:
- rrd_set_error("Unknown cf %s",
- rrd.rra_def[i].cf_nam);
- break;
- }
- }
- }
-
-
- /* is the data in the cdp_prep ready to go into
- * its rra ? */
- if((pdp_st %
- (rrd.rra_def[i].pdp_cnt*rrd.stat_head->pdp_step)) == 0){
-
- /* prepare cdp_pref for its transition to the rra. */
- if (rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt
- > rrd.rra_def[i].pdp_cnt*
- rrd.rra_def[i].par[RRA_cdp_xff_val].u_val)
- /* to much of the cdp_prep is unknown ... */
- rrd.cdp_prep[iii].scratch[CDP_val].u_val = DNAN;
- else if (current_cf == CF_AVERAGE){
- /* for a real average we have to divide
- * the sum we built earlier on. While ignoring
- * the unknown pdps */
- rrd.cdp_prep[iii].scratch[CDP_val].u_val
- /= (rrd.rra_def[i].pdp_cnt
- -rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt);
- }
- /* we can write straight away, because we are
- * already in the right place ... */
-
-#ifdef DEBUG
- fprintf(stderr," -- RRA WRITE VALUE %e, at %ld\n",
- rrd.cdp_prep[iii].scratch[CDP_val].u_val,ftell(rrd_file));
-#endif
-
- if(fwrite(&(rrd.cdp_prep[iii].scratch[CDP_val].u_val),
- sizeof(rrd_value_t),1,rrd_file) != 1){
- rrd_set_error("writing rrd");
- break;
- }
- rra_current += sizeof(rrd_value_t);
- wrote_to_file = 1;
-
-#ifdef DEBUG
- fprintf(stderr," -- RRA WROTE new at %ld\n",ftell(rrd_file));
-#endif
-
- /* make cdp_prep ready for the next run */
- rrd.cdp_prep[iii].scratch[CDP_val].u_val = DNAN;
- rrd.cdp_prep[iii].scratch[CDP_unkn_pdp_cnt].u_cnt = 0;
- }
- }
- /* break out of this loop if error_string has been set */
- if (rrd_test_error())
- break;
- }
- /* break out of this loop if error_string has been set */
- if (rrd_test_error())
- break;
- /* to be able to position correctly in the next rra w move
- * the rra_start pointer on to the next rra */
- rra_start += rrd.rra_def[i].row_cnt
- *rrd.stat_head->ds_cnt*sizeof(rrd_value_t);
-
- }
- /* break out of the argument parsing loop if error_string is set */
- if (rrd_test_error()){
- free(step_start);
- break;
- }
- }
- rrd.live_head->last_up = current_time;
- free(step_start);
- }
-
-
- /* if we got here and if there is an error and if the file has not been
- * written to, then close things up and return. */
- if (rrd_test_error()) {
- free(updvals);
- free(tmpl_idx);
- rrd_free(&rrd);
- free(pdp_temp);
- free(pdp_new);
- fclose(rrd_file);
- return(-1);
- }
-
- /* aargh ... that was tough ... so many loops ... anyway, its done.
- * we just need to write back the live header portion now*/
-
- if (fseek(rrd_file, (sizeof(stat_head_t)
- + sizeof(ds_def_t)*rrd.stat_head->ds_cnt
- + sizeof(rra_def_t)*rrd.stat_head->rra_cnt),
- SEEK_SET) != 0) {
- rrd_set_error("seek rrd for live header writeback");
- free(updvals);
- free(tmpl_idx);
- rrd_free(&rrd);
- free(pdp_temp);
- free(pdp_new);
- fclose(rrd_file);
- return(-1);
- }
-
- if(fwrite( rrd.live_head,
- sizeof(live_head_t), 1, rrd_file) != 1){
- rrd_set_error("fwrite live_head to rrd");
- free(updvals);
- rrd_free(&rrd);
- free(tmpl_idx);
- free(pdp_temp);
- free(pdp_new);
- fclose(rrd_file);
- return(-1);
- }
-
- if(fwrite( rrd.pdp_prep,
- sizeof(pdp_prep_t),
- rrd.stat_head->ds_cnt, rrd_file) != rrd.stat_head->ds_cnt){
- rrd_set_error("ftwrite pdp_prep to rrd");
- free(updvals);
- rrd_free(&rrd);
- free(tmpl_idx);
- free(pdp_temp);
- free(pdp_new);
- fclose(rrd_file);
- return(-1);
- }
-
- if(fwrite( rrd.cdp_prep,
- sizeof(cdp_prep_t),
- rrd.stat_head->rra_cnt *rrd.stat_head->ds_cnt, rrd_file)
- != rrd.stat_head->rra_cnt *rrd.stat_head->ds_cnt){
-
- rrd_set_error("ftwrite cdp_prep to rrd");
- free(updvals);
- free(tmpl_idx);
- rrd_free(&rrd);
- free(pdp_temp);
- free(pdp_new);
- fclose(rrd_file);
- return(-1);
- }
-
- if(fwrite( rrd.rra_ptr,
- sizeof(rra_ptr_t),
- rrd.stat_head->rra_cnt,rrd_file) != rrd.stat_head->rra_cnt){
- rrd_set_error("fwrite rra_ptr to rrd");
- free(updvals);
- free(tmpl_idx);
- rrd_free(&rrd);
- free(pdp_temp);
- free(pdp_new);
- fclose(rrd_file);
- return(-1);
- }
-
- /* OK now close the files and free the memory */
- if(fclose(rrd_file) != 0){
- rrd_set_error("closing rrd");
- free(updvals);
- free(tmpl_idx);
- rrd_free(&rrd);
- free(pdp_temp);
- free(pdp_new);
- return(-1);
- }
-
- rrd_free(&rrd);
- free(updvals);
- free(tmpl_idx);
- free(pdp_new);
- free(pdp_temp);
- return(0);
-}
-
-/*
- * get exclusive lock to whole file.
- * lock gets removed when we close the file
- *
- * returns 0 on success
- */
-int
-LockRRD(FILE *rrdfile)
-{
- int rrd_fd; /* File descriptor for RRD */
- int stat;
-
- rrd_fd = fileno(rrdfile);
-
- {
-#ifndef WIN32
- struct flock lock;
- lock.l_type = F_WRLCK; /* exclusive write lock */
- lock.l_len = 0; /* whole file */
- lock.l_start = 0; /* start of file */
- lock.l_whence = SEEK_SET; /* end of file */
-
- stat = fcntl(rrd_fd, F_SETLK, &lock);
-#else
- struct _stat st;
-
- if ( _fstat( rrd_fd, &st ) == 0 ) {
- stat = _locking ( rrd_fd, _LK_NBLCK, st.st_size );
- } else {
- stat = -1;
- }
-#endif
- }
-
- return(stat);
-}
projects / rrdtool.git / commitdiff