static int readfile(
const char *file_name,
char **buffer,
int skipfirst)
{
long writecnt = 0, totalcnt = MEMBLK;
long offset = 0;
FILE *input = NULL;
char c;
if ((strcmp("-", file_name) == 0)) {
input = stdin;
} else {
if ((input = fopen(file_name, "rb")) == NULL) {
rrd_set_error("opening '%s': %s", file_name, rrd_strerror(errno));
return (-1);
}
}
if (skipfirst) {
do {
c = getc(input);
offset++;
} while (c != '\n' && !feof(input));
}
if (strcmp("-", file_name)) {
fseek(input, 0, SEEK_END);
/* have extra space for detecting EOF without realloc */
totalcnt = (ftell(input) + 1) / sizeof(char) - offset;
if (totalcnt < MEMBLK)
totalcnt = MEMBLK; /* sanitize */
fseek(input, offset * sizeof(char), SEEK_SET);
}
if (((*buffer) = (char *) malloc((totalcnt + 4) * sizeof(char))) == NULL) {
perror("Allocate Buffer:");
exit(1);
};
do {
writecnt +=
fread((*buffer) + writecnt, 1,
(totalcnt - writecnt) * sizeof(char), input);
if (writecnt >= totalcnt) {
totalcnt += MEMBLK;
if (((*buffer) =
rrd_realloc((*buffer),
(totalcnt + 4) * sizeof(char))) == NULL) {
perror("Realloc Buffer:");
exit(1);
};
}
} while (!feof(input));
(*buffer)[writecnt] = '\0';
if (strcmp("-", file_name) != 0) {
fclose(input);
};
return writecnt;
}
int rrd_add_ptr_chunk(void ***dest, size_t *dest_size, void *src,
size_t *alloc, size_t chunk)
{
void **temp;
assert(dest != NULL);
assert(alloc != NULL);
assert(*alloc >= *dest_size);
if (*alloc == *dest_size)
{
temp = (void **) rrd_realloc(*dest, (*alloc+chunk) * sizeof(*dest));
if (!temp)
return 0;
*dest = temp;
*alloc += chunk;
}
(*dest)[*dest_size] = src;
(*dest_size)++;
return 1;
}
/* Create the CF_DEVPREDICT, CF_DEVSEASONAL, CF_SEASONAL, and CF_FAILURES RRAs
* associated with a CF_HWPREDICT RRA. */
int create_hw_contingent_rras(
rrd_t *rrd,
unsigned short period,
unsigned long hashed_name)
{
size_t old_size;
rra_def_t *current_rra;
/* save index to CF_HWPREDICT */
unsigned long hw_index = rrd->stat_head->rra_cnt;
/* advance the pointer */
(rrd->stat_head->rra_cnt)++;
/* allocate the memory for the 4 contingent RRAs */
old_size = sizeof(rra_def_t) * (rrd->stat_head->rra_cnt);
if ((rrd->rra_def = (rra_def_t*)rrd_realloc(rrd->rra_def,
old_size + 4 * sizeof(rra_def_t))) ==
NULL) {
rrd_free2(rrd);
return (-RRD_ERR_ALLOC);
}
/* clear memory */
memset(&(rrd->rra_def[rrd->stat_head->rra_cnt]), 0,
4 * sizeof(rra_def_t));
/* create the CF_SEASONAL RRA */
current_rra = &(rrd->rra_def[rrd->stat_head->rra_cnt]);
strcpy(current_rra->cf_nam, "SEASONAL");
current_rra->row_cnt = period;
current_rra->par[RRA_seasonal_smooth_idx].u_cnt = hashed_name % period;
current_rra->pdp_cnt = 1;
current_rra->par[RRA_seasonal_gamma].u_val =
rrd->rra_def[hw_index].par[RRA_hw_alpha].u_val;
current_rra->par[RRA_dependent_rra_idx].u_cnt = hw_index;
rrd->rra_def[hw_index].par[RRA_dependent_rra_idx].u_cnt =
rrd->stat_head->rra_cnt;
/* create the CF_DEVSEASONAL RRA */
(rrd->stat_head->rra_cnt)++;
current_rra = &(rrd->rra_def[rrd->stat_head->rra_cnt]);
strcpy(current_rra->cf_nam, "DEVSEASONAL");
current_rra->row_cnt = period;
current_rra->par[RRA_seasonal_smooth_idx].u_cnt = hashed_name % period;
current_rra->pdp_cnt = 1;
current_rra->par[RRA_seasonal_gamma].u_val =
rrd->rra_def[hw_index].par[RRA_hw_alpha].u_val;
current_rra->par[RRA_dependent_rra_idx].u_cnt = hw_index;
/* create the CF_DEVPREDICT RRA */
(rrd->stat_head->rra_cnt)++;
current_rra = &(rrd->rra_def[rrd->stat_head->rra_cnt]);
strcpy(current_rra->cf_nam, "DEVPREDICT");
current_rra->row_cnt = (rrd->rra_def[hw_index]).row_cnt;
current_rra->pdp_cnt = 1;
current_rra->par[RRA_dependent_rra_idx].u_cnt = hw_index + 2; /* DEVSEASONAL */
/* create the CF_FAILURES RRA */
(rrd->stat_head->rra_cnt)++;
current_rra = &(rrd->rra_def[rrd->stat_head->rra_cnt]);
strcpy(current_rra->cf_nam, "FAILURES");
current_rra->row_cnt = period;
current_rra->pdp_cnt = 1;
current_rra->par[RRA_delta_pos].u_val = 2.0;
current_rra->par[RRA_delta_neg].u_val = 2.0;
current_rra->par[RRA_failure_threshold].u_cnt = 7;
current_rra->par[RRA_window_len].u_cnt = 9;
current_rra->par[RRA_dependent_rra_idx].u_cnt = hw_index + 2; /* DEVSEASONAL */
return 0;
}
/* #define DEBUG */
int rrd_create_r( const char *filename, unsigned long pdp_step,
time_t last_up, int argc, const char **argv) {
rrd_t rrd;
long i;
int offset;
char *token;
char dummychar1[2], dummychar2[2];
unsigned short token_idx, error_flag, period = 0;
unsigned long hashed_name;
int ret = 0;
/* init rrd clean */
rrd_init(&rrd);
/* static header */
if ((rrd.stat_head = (stat_head_t*)calloc(1, sizeof(stat_head_t))) == NULL) {
rrd_free2(&rrd);
return -RRD_ERR_ALLOC;
}
/* live header */
if ((rrd.live_head = (live_head_t*)calloc(1, sizeof(live_head_t))) == NULL) {
rrd_free2(&rrd);
return -RRD_ERR_ALLOC;
}
/* set some defaults */
strcpy(rrd.stat_head->cookie, RRD_COOKIE);
strcpy(rrd.stat_head->version, RRD_VERSION3); /* by default we are still version 3 */
rrd.stat_head->float_cookie = FLOAT_COOKIE;
rrd.stat_head->ds_cnt = 0; /* this will be adjusted later */
rrd.stat_head->rra_cnt = 0; /* ditto */
rrd.stat_head->pdp_step = pdp_step; /* 5 minute default */
/* a default value */
rrd.ds_def = NULL;
rrd.rra_def = NULL;
rrd.live_head->last_up = last_up;
/* optind points to the first non-option command line arg,
* in this case, the file name. */
/* Compute the FNV hash value (used by SEASONAL and DEVSEASONAL
* arrays. */
hashed_name = FnvHash(filename);
for (i = 0; i < argc; i++) {
unsigned int ii;
if (strncmp(argv[i], "DS:", 3) == 0) {
size_t old_size = sizeof(ds_def_t) * (rrd.stat_head->ds_cnt);
if ((rrd.ds_def = (ds_def_t*)rrd_realloc(rrd.ds_def,
old_size + sizeof(ds_def_t))) ==
NULL) {
rrd_free2(&rrd);
return -RRD_ERR_ALLOC;
}
memset(&rrd.ds_def[rrd.stat_head->ds_cnt], 0, sizeof(ds_def_t));
/* extract the name and type */
switch (sscanf(&argv[i][3],
DS_NAM_FMT "%1[:]" DST_FMT "%1[:]%n",
rrd.ds_def[rrd.stat_head->ds_cnt].ds_nam,
dummychar1,
rrd.ds_def[rrd.stat_head->ds_cnt].dst,
dummychar2, &offset)) {
case 0:
case 1:
ret = -RRD_ERR_INVALID_DS_NAME;
break;
case 2:
case 3:
ret = -RRD_ERR_INVALID_DS_TYPE;
break;
case 4: /* (%n may or may not be counted) */
case 5: /* check for duplicate datasource names */
for (ii = 0; ii < rrd.stat_head->ds_cnt; ii++)
if (strcmp(rrd.ds_def[rrd.stat_head->ds_cnt].ds_nam,
rrd.ds_def[ii].ds_nam) == 0)
ret = -RRD_ERR_DUPLICATE_DS_NAME;
/* DS_type may be valid or not. Checked later */
break;
default:
ret = -RRD_ERR_INVALID_DS_FORMAT;
}
if (ret) {
rrd_free2(&rrd);
return ret;
}
/* parse the remainder of the arguments */
switch (dst_conv(rrd.ds_def[rrd.stat_head->ds_cnt].dst)) {
case DST_COUNTER:
case DST_ABSOLUTE:
case DST_GAUGE:
case DST_DERIVE:
ret = parseGENERIC_DS(&argv[i][offset + 3], &rrd,
rrd.stat_head->ds_cnt);
break;
case DST_CDEF:
ret = parseCDEF_DS(&argv[i][offset + 3], &rrd,
rrd.stat_head->ds_cnt);
break;
default:
ret = -RRD_ERR_INVALID_DS_TYPE_SPEC;
break;
}
if (ret) {
rrd_free2(&rrd);
return ret;
}
rrd.stat_head->ds_cnt++;
} else if (strncmp(argv[i], "RRA:", 4) == 0) {
char *argvcopy;
char *tokptr = "";
int cf_id = -1;
size_t old_size = sizeof(rra_def_t) * (rrd.stat_head->rra_cnt);
int row_cnt;
int token_min = 4;
if ((rrd.rra_def = (rra_def_t*)rrd_realloc(rrd.rra_def,
old_size + sizeof(rra_def_t))) ==
NULL) {
rrd_free2(&rrd);
return -RRD_ERR_ALLOC;
}
memset(&rrd.rra_def[rrd.stat_head->rra_cnt], 0,
sizeof(rra_def_t));
argvcopy = strdup(argv[i]);
token = strtok_r(&argvcopy[4], ":", &tokptr);
token_idx = error_flag = 0;
while (token != NULL) {
switch (token_idx) {
case 0:
if (sscanf(token, CF_NAM_FMT,
rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam) !=
1)
ret = -RRD_ERR_FAILED_PARSE_CF_NAME;
cf_id = cf_conv(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam);
switch (cf_id) {
case CF_MHWPREDICT:
strcpy(rrd.stat_head->version, RRD_VERSION); /* MHWPREDICT causes Version 4 */
case CF_HWPREDICT:
token_min = 5;
/* initialize some parameters */
rrd.rra_def[rrd.stat_head->rra_cnt].par[RRA_hw_alpha].
u_val = 0.1;
rrd.rra_def[rrd.stat_head->rra_cnt].par[RRA_hw_beta].
u_val = 1.0 / 288;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt =
rrd.stat_head->rra_cnt;
break;
case CF_DEVSEASONAL:
token_min = 3;
case CF_SEASONAL:
if (cf_id == CF_SEASONAL){
token_min = 4;
}
/* initialize some parameters */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_gamma].u_val = 0.1;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_smoothing_window].u_val = 0.05;
/* fall through */
case CF_DEVPREDICT:
if (cf_id == CF_DEVPREDICT){
token_min = 3;
}
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt = -1;
break;
case CF_FAILURES:
token_min = 5;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_delta_pos].u_val = 2.0;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_delta_neg].u_val = 2.0;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_window_len].u_cnt = 3;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_failure_threshold].u_cnt = 2;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt = -1;
break;
/* invalid consolidation function */
case -1:
ret = -RRD_ERR_UNREC_CONSOLIDATION_FUNC;
default:
break;
}
/* default: 1 pdp per cdp */
rrd.rra_def[rrd.stat_head->rra_cnt].pdp_cnt = 1;
break;
case 1:
switch (cf_conv(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam)) {
case CF_HWPREDICT:
case CF_MHWPREDICT:
case CF_DEVSEASONAL:
case CF_SEASONAL:
case CF_DEVPREDICT:
case CF_FAILURES:
row_cnt = atoi(token);
if (row_cnt <= 0)
ret = -RRD_ERR_INVALID_ROW_COUNT;
rrd.rra_def[rrd.stat_head->rra_cnt].row_cnt = row_cnt;
break;
default:
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_cdp_xff_val].u_val = atof(token);
if (rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_cdp_xff_val].u_val < 0.0
|| rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_cdp_xff_val].u_val >= 1.0)
ret = -RRD_ERR_INVALID_XFF;
break;
}
break;
case 2:
switch (cf_conv
(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam)) {
case CF_HWPREDICT:
case CF_MHWPREDICT:
rrd.rra_def[rrd.stat_head->rra_cnt].par[RRA_hw_alpha].
u_val = atof(token);
if (atof(token) <= 0.0 || atof(token) >= 1.0)
ret = -RRD_ERR_INVALID_ALPHA;
break;
case CF_DEVSEASONAL:
case CF_SEASONAL:
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_gamma].u_val = atof(token);
if (atof(token) <= 0.0 || atof(token) >= 1.0)
ret = -RRD_ERR_INVALID_GAMMA;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_smooth_idx].u_cnt =
hashed_name %
rrd.rra_def[rrd.stat_head->rra_cnt].row_cnt;
break;
case CF_FAILURES:
/* specifies the # of violations that constitutes the failure threshold */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_failure_threshold].u_cnt = atoi(token);
if (atoi(token) < 1
|| atoi(token) > MAX_FAILURES_WINDOW_LEN)
ret = -RRD_ERR_FAILURE_THRESHOLD_OUT_OF_RANGE;
break;
case CF_DEVPREDICT:
/* specifies the index (1-based) of CF_DEVSEASONAL array
* associated with this CF_DEVPREDICT array. */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt =
atoi(token) - 1;
break;
default:
rrd.rra_def[rrd.stat_head->rra_cnt].pdp_cnt =
atoi(token);
if (atoi(token) < 1)
ret = -RRD_ERR_INVALID_STEP;
break;
}
break;
case 3:
switch (cf_conv(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam)) {
case CF_HWPREDICT:
case CF_MHWPREDICT:
rrd.rra_def[rrd.stat_head->rra_cnt].par[RRA_hw_beta].
u_val = atof(token);
if (atof(token) < 0.0 || atof(token) > 1.0)
ret = -RRD_ERR_INVALID_BETA;
break;
case CF_DEVSEASONAL:
case CF_SEASONAL:
/* specifies the index (1-based) of CF_HWPREDICT array
* associated with this CF_DEVSEASONAL or CF_SEASONAL array.
* */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt =
atoi(token) - 1;
break;
case CF_FAILURES:
/* specifies the window length */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_window_len].u_cnt = atoi(token);
if (atoi(token) < 1
|| atoi(token) > MAX_FAILURES_WINDOW_LEN)
ret = RRD_ERR_WIN_LEN_OUT_OF_RANGE;
/* verify that window length exceeds the failure threshold */
if (rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_window_len].u_cnt <
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_failure_threshold].u_cnt)
ret = -RRD_ERR_WINLEN_SHORTER_FAILURE_THRESHOLD;
break;
case CF_DEVPREDICT:
/* shouldn't be any more arguments */
ret = -RRD_ERR_INVALID_ARG1;
break;
default:
row_cnt = atoi(token);
if (row_cnt <= 0)
ret = -RRD_ERR_INVALID_ROW_COUNT;
#if SIZEOF_TIME_T == 4
if ((long long) pdp_step * rrd.rra_def[rrd.stat_head->rra_cnt].pdp_cnt * row_cnt > 4294967296LL){
/* database timespan > 2**32, would overflow time_t */
ret = -RRD_ERR_TIME_TOO_LARGE;
}
#endif
rrd.rra_def[rrd.stat_head->rra_cnt].row_cnt = row_cnt;
break;
}
break;
case 4:
switch (cf_conv(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam)) {
case CF_FAILURES:
/* specifies the index (1-based) of CF_DEVSEASONAL array
* associated with this CF_DEVFAILURES array. */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt =
atoi(token) - 1;
break;
case CF_DEVSEASONAL:
case CF_SEASONAL:
/* optional smoothing window */
if (sscanf(token, "smoothing-window=%lf",
&(rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_smoothing_window].
u_val))) {
strcpy(rrd.stat_head->version, RRD_VERSION); /* smoothing-window causes Version 4 */
if (rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_smoothing_window].u_val < 0.0
|| rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_smoothing_window].u_val >
1.0) {
ret = -RRD_ERR_INVALID_SMOOTHING_WINDOW;
}
} else {
ret = -RRD_ERR_INVALID_OPT;
}
break;
case CF_HWPREDICT:
case CF_MHWPREDICT:
/* length of the associated CF_SEASONAL and CF_DEVSEASONAL arrays. */
period = atoi(token);
if (period >
rrd.rra_def[rrd.stat_head->rra_cnt].row_cnt)
ret = -RRD_ERR_LEN_OF_SEASONAL_CYCLE;
break;
default:
/* shouldn't be any more arguments */
ret = -RRD_ERR_INVALID_ARG2;
break;
}
break;
case 5:
/* If we are here, this must be a CF_HWPREDICT RRA.
* Specifies the index (1-based) of CF_SEASONAL array
* associated with this CF_HWPREDICT array. If this argument
* is missing, then the CF_SEASONAL, CF_DEVSEASONAL, CF_DEVPREDICT,
* CF_FAILURES.
* arrays are created automatically. */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt = atoi(token) - 1;
break;
default:
/* should never get here */
ret = -RRD_ERR_UNKNOWN_ERROR;
break;
} /* end switch */
if (ret) {
/* all errors are unrecoverable */
free(argvcopy);
rrd_free2(&rrd);
return ret;
}
token = strtok_r(NULL, ":", &tokptr);
token_idx++;
} /* end while */
free(argvcopy);
if (token_idx < token_min){
rrd_free2(&rrd);
return(-RRD_ERR_ARG3);
}
#ifdef DEBUG
fprintf(stderr,
"Creating RRA CF: %s, dep idx %lu, current idx %lu\n",
rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam,
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt, rrd.stat_head->rra_cnt);
#endif
/* should we create CF_SEASONAL, CF_DEVSEASONAL, and CF_DEVPREDICT? */
if ((cf_conv(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam) ==
CF_HWPREDICT
|| cf_conv(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam) ==
CF_MHWPREDICT)
&& rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt == rrd.stat_head->rra_cnt) {
#ifdef DEBUG
fprintf(stderr, "Creating HW contingent RRAs\n");
#endif
if (create_hw_contingent_rras(&rrd, period, hashed_name) ==
-1) {
rrd_free2(&rrd);
return (-RRD_ERR_CREATING_RRA);
}
}
rrd.stat_head->rra_cnt++;
} else {
rrd_free2(&rrd);
return (-RRD_ERR_ARG4);
}
}
if (rrd.stat_head->rra_cnt < 1) {
rrd_free2(&rrd);
return (-RRD_ERR_ARG5);
}
if (rrd.stat_head->ds_cnt < 1) {
rrd_free2(&rrd);
return (-RRD_ERR_ARG6);
}
return rrd_create_fn(filename, &rrd);
}
/* Scan buffer until an unescaped '>' arives.
* Update argument array with arguments found.
* Return end cursor where parsing stopped, or NULL in case of failure.
*
* FIXME:
* To allow nested constructs, we call rrd_expand_vars() for arguments
* that contain RRD::x directives. These introduce a small memory leak
* since we have to stralloc the arguments the way parse() works.
*/
char*
scanargs(char *line, int *argument_count, char ***arguments)
{
char *getP; /* read cursor */
char *putP; /* write cursor */
char Quote; /* type of quote if in quoted string, 0 otherwise */
int tagcount; /* open tag count */
int in_arg; /* if we currently are parsing an argument or not */
int argsz; /* argument array size */
int curarg_contains_rrd_directives;
/* local array of arguments while parsing */
int argc = 0;
char** argv;
#ifdef DEBUG_PARSER
printf("<-- scanargs(%s) -->\n", line);
#endif
*arguments = NULL;
*argument_count = 0;
/* create initial argument array of char pointers */
argsz = 32;
argv = (char **)malloc(argsz * sizeof(char *));
if (!argv) {
return NULL;
}
/* skip leading blanks */
while (isspace((int)*line)) {
line++;
}
getP = line;
putP = line;
Quote = 0;
in_arg = 0;
tagcount = 0;
curarg_contains_rrd_directives = 0;
/* start parsing 'line' for arguments */
while (*getP)
{
unsigned char c = *getP++;
if (c == '>' && !Quote && !tagcount) {
/* this is our closing tag, quit scanning */
break;
}
/* remove all special chars */
if (c < ' ') {
c = ' ';
}
switch (c)
{
case ' ':
if (Quote || tagcount) {
/* copy quoted/tagged (=RRD expanded) string */
*putP++ = c;
}
else if (in_arg)
{
/* end argument string */
*putP++ = 0;
in_arg = 0;
if (curarg_contains_rrd_directives) {
argv[argc-1] = rrd_expand_vars(stralloc(argv[argc-1]));
curarg_contains_rrd_directives = 0;
}
}
break;
case '"': /* Fall through */
case '\'':
if (Quote != 0) {
if (Quote == c) {
Quote = 0;
} else {
/* copy quoted string */
*putP++ = c;
}
} else {
if (!in_arg) {
/* reference start of argument string in argument array */
argv[argc++] = putP;
in_arg=1;
}
Quote = c;
}
break;
default:
if (!in_arg) {
/* start new argument */
argv[argc++] = putP;
in_arg = 1;
}
if (c == '>') {
if (tagcount) {
tagcount--;
}
}
if (c == '<') {
tagcount++;
if (0 == strncmp(getP, "RRD::", strlen("RRD::"))) {
curarg_contains_rrd_directives = 1;
}
}
*putP++ = c;
break;
}
/* check if our argument array is still large enough */
if (argc == argsz) {
/* resize argument array */
argsz *= 2;
argv = rrd_realloc(argv, argsz * sizeof(char *));
if (*argv == NULL) {
return NULL;
}
}
}
/* terminate last argument found */
*putP = '\0';
if (curarg_contains_rrd_directives) {
argv[argc-1] = rrd_expand_vars(stralloc(argv[argc-1]));
}
#ifdef DEBUG_PARSER
if (argc > 0) {
int n;
printf("<-- arguments found [%d]\n", argc);
for (n=0; n<argc; n++) {
printf("arg %02d: '%s'\n", n, argv[n]);
}
printf("-->\n");
} else {
printf("<!-- No arguments found -->\n");
}
#endif
/* update caller's notion of the argument array and it's size */
*arguments = argv;
*argument_count = argc;
if (Quote) {
return NULL;
}
/* Return new scanning cursor:
pointer to char after closing bracket */
return getP;
}
/*
* Parse(): scan current portion of buffer for given tag.
* If found, parse tag arguments and call 'func' for it.
* The result of func is inserted at the current position
* in the buffer.
*/
int
parse(
char **buf, /* buffer */
long i, /* offset in buffer */
char *tag, /* tag to handle */
char *(*func)(long , const char **) /* function to call for 'tag' */
)
{
/* the name of the vairable ... */
char *val;
long valln;
char **args;
char *end;
long end_offset;
int argc;
size_t taglen = strlen(tag);
/* Current position in buffer should start with 'tag' */
if (strncmp((*buf)+i, tag, taglen) != 0) {
return 0;
}
/* .. and match exactly (a whitespace following 'tag') */
if (! isspace(*((*buf) + i + taglen)) ) {
return 0;
}
#ifdef DEBUG_PARSER
printf("parse(): handling tag '%s'\n", tag);
#endif
/* Scan for arguments following the tag;
scanargs() puts \0 into *buf ... so after scanargs it is probably
not a good time to use strlen on buf */
end = scanargs((*buf) + i + taglen, &argc, &args);
if (end)
{
/* got arguments, call function for 'tag' with arguments */
val = func(argc, (const char **) args);
free(args);
}
else
{
/* unable to parse arguments, undo 0-termination by scanargs */
for (; argc > 0; argc--) {
*((args[argc-1])-1) = ' ';
}
/* next call, try parsing at current offset +1 */
end = (*buf) + i + 1;
val = stralloc("[ERROR: Parsing Problem with the following text\n"
" Check original file. This may have been altered "
"by parsing.]\n\n");
}
/* remember offset where we have to continue parsing */
end_offset = end - (*buf);
valln = 0;
if (val) {
valln = strlen(val);
}
/* Optionally resize buffer to hold the replacement value:
Calculating the new length of the buffer is simple. add current
buffer pos (i) to length of string after replaced tag to length
of replacement string and add 1 for the final zero ... */
if (end - (*buf) < (i + valln)) {
/* make sure we do not shrink the mallocd block */
size_t newbufsize = i + strlen(end) + valln + 1;
*buf = rrd_realloc(*buf, newbufsize);
if (*buf == NULL) {
perror("Realoc buf:");
exit(1);
};
}
/* Update new end pointer:
make sure the 'end' pointer gets moved along with the
buf pointer when realloc moves memory ... */
end = (*buf) + end_offset;
/* splice the variable:
step 1. Shift pending data to make room for 'val' */
memmove((*buf) + i + valln, end, strlen(end) + 1);
/* step 2. Insert val */
if (val) {
memmove((*buf)+i, val, valln);
free(val);
}
return (valln > 0 ? valln-1: valln);
}
/* #define DEBUG */
int rrd_create_r(
const char *filename,
unsigned long pdp_step,
time_t last_up,
int argc,
const char **argv)
{
rrd_t rrd;
long i;
int offset;
char *token;
char dummychar1[2], dummychar2[2];
unsigned short token_idx, error_flag, period = 0;
unsigned long hashed_name;
/* init rrd clean */
rrd_init(&rrd);
/* static header */
if ((rrd.stat_head = (stat_head_t*)calloc(1, sizeof(stat_head_t))) == NULL) {
rrd_set_error("allocating rrd.stat_head");
rrd_free2(&rrd);
return (-1);
}
/* live header */
if ((rrd.live_head = (live_head_t*)calloc(1, sizeof(live_head_t))) == NULL) {
rrd_set_error("allocating rrd.live_head");
rrd_free2(&rrd);
return (-1);
}
/* set some defaults */
strcpy(rrd.stat_head->cookie, RRD_COOKIE);
strcpy(rrd.stat_head->version, RRD_VERSION3); /* by default we are still version 3 */
rrd.stat_head->float_cookie = FLOAT_COOKIE;
rrd.stat_head->ds_cnt = 0; /* this will be adjusted later */
rrd.stat_head->rra_cnt = 0; /* ditto */
rrd.stat_head->pdp_step = pdp_step; /* 5 minute default */
/* a default value */
rrd.ds_def = NULL;
rrd.rra_def = NULL;
rrd.live_head->last_up = last_up;
/* optind points to the first non-option command line arg,
* in this case, the file name. */
/* Compute the FNV hash value (used by SEASONAL and DEVSEASONAL
* arrays. */
hashed_name = FnvHash(filename);
for (i = 0; i < argc; i++) {
unsigned int ii;
if (strncmp(argv[i], "DS:", 3) == 0) {
size_t old_size = sizeof(ds_def_t) * (rrd.stat_head->ds_cnt);
if ((rrd.ds_def = (ds_def_t*)rrd_realloc(rrd.ds_def,
old_size + sizeof(ds_def_t))) ==
NULL) {
rrd_set_error("allocating rrd.ds_def");
rrd_free2(&rrd);
return (-1);
}
memset(&rrd.ds_def[rrd.stat_head->ds_cnt], 0, sizeof(ds_def_t));
/* extract the name and type */
switch (sscanf(&argv[i][3],
DS_NAM_FMT "%1[:]" DST_FMT "%1[:]%n",
rrd.ds_def[rrd.stat_head->ds_cnt].ds_nam,
dummychar1,
rrd.ds_def[rrd.stat_head->ds_cnt].dst,
dummychar2, &offset)) {
case 0:
case 1:
rrd_set_error("Invalid DS name");
break;
case 2:
case 3:
rrd_set_error("Invalid DS type");
break;
case 4: /* (%n may or may not be counted) */
case 5: /* check for duplicate datasource names */
for (ii = 0; ii < rrd.stat_head->ds_cnt; ii++)
if (strcmp(rrd.ds_def[rrd.stat_head->ds_cnt].ds_nam,
rrd.ds_def[ii].ds_nam) == 0)
rrd_set_error("Duplicate DS name: %s",
rrd.ds_def[ii].ds_nam);
/* DS_type may be valid or not. Checked later */
break;
default:
rrd_set_error("invalid DS format");
}
if (rrd_test_error()) {
rrd_free2(&rrd);
return -1;
}
/* parse the remainder of the arguments */
switch (dst_conv(rrd.ds_def[rrd.stat_head->ds_cnt].dst)) {
case DST_COUNTER:
case DST_ABSOLUTE:
case DST_GAUGE:
case DST_DERIVE:
parseGENERIC_DS(&argv[i][offset + 3], &rrd,
rrd.stat_head->ds_cnt);
break;
case DST_CDEF:
parseCDEF_DS(&argv[i][offset + 3], &rrd,
rrd.stat_head->ds_cnt);
break;
default:
rrd_set_error("invalid DS type specified");
break;
}
if (rrd_test_error()) {
rrd_free2(&rrd);
return -1;
}
rrd.stat_head->ds_cnt++;
} else if (strncmp(argv[i], "RRA:", 4) == 0) {
char *argvcopy;
char *tokptr = "";
size_t old_size = sizeof(rra_def_t) * (rrd.stat_head->rra_cnt);
int row_cnt;
if ((rrd.rra_def = (rra_def_t*)rrd_realloc(rrd.rra_def,
old_size + sizeof(rra_def_t))) ==
NULL) {
rrd_set_error("allocating rrd.rra_def");
rrd_free2(&rrd);
return (-1);
}
memset(&rrd.rra_def[rrd.stat_head->rra_cnt], 0,
sizeof(rra_def_t));
argvcopy = strdup(argv[i]);
token = strtok_r(&argvcopy[4], ":", &tokptr);
token_idx = error_flag = 0;
while (token != NULL) {
switch (token_idx) {
case 0:
if (sscanf(token, CF_NAM_FMT,
rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam) !=
1)
rrd_set_error("Failed to parse CF name");
switch (cf_conv
(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam)) {
case CF_MHWPREDICT:
strcpy(rrd.stat_head->version, RRD_VERSION); /* MHWPREDICT causes Version 4 */
case CF_HWPREDICT:
/* initialize some parameters */
rrd.rra_def[rrd.stat_head->rra_cnt].par[RRA_hw_alpha].
u_val = 0.1;
rrd.rra_def[rrd.stat_head->rra_cnt].par[RRA_hw_beta].
u_val = 1.0 / 288;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt =
rrd.stat_head->rra_cnt;
break;
case CF_DEVSEASONAL:
case CF_SEASONAL:
/* initialize some parameters */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_gamma].u_val = 0.1;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_smoothing_window].u_val = 0.05;
/* fall through */
case CF_DEVPREDICT:
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt = -1;
break;
case CF_FAILURES:
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_delta_pos].u_val = 2.0;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_delta_neg].u_val = 2.0;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_window_len].u_cnt = 3;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_failure_threshold].u_cnt = 2;
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt = -1;
break;
/* invalid consolidation function */
case -1:
rrd_set_error
("Unrecognized consolidation function %s",
rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam);
default:
break;
}
/* default: 1 pdp per cdp */
rrd.rra_def[rrd.stat_head->rra_cnt].pdp_cnt = 1;
break;
case 1:
switch (cf_conv
(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam)) {
case CF_HWPREDICT:
case CF_MHWPREDICT:
case CF_DEVSEASONAL:
case CF_SEASONAL:
case CF_DEVPREDICT:
case CF_FAILURES:
row_cnt = atoi(token);
if (row_cnt <= 0)
rrd_set_error("Invalid row count: %i", row_cnt);
rrd.rra_def[rrd.stat_head->rra_cnt].row_cnt = row_cnt;
break;
default:
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_cdp_xff_val].u_val = atof(token);
if (rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_cdp_xff_val].u_val < 0.0
|| rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_cdp_xff_val].u_val >= 1.0)
rrd_set_error
("Invalid xff: must be between 0 and 1");
break;
}
break;
case 2:
switch (cf_conv
(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam)) {
case CF_HWPREDICT:
case CF_MHWPREDICT:
rrd.rra_def[rrd.stat_head->rra_cnt].par[RRA_hw_alpha].
u_val = atof(token);
if (atof(token) <= 0.0 || atof(token) >= 1.0)
rrd_set_error
("Invalid alpha: must be between 0 and 1");
break;
case CF_DEVSEASONAL:
case CF_SEASONAL:
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_gamma].u_val = atof(token);
if (atof(token) <= 0.0 || atof(token) >= 1.0)
rrd_set_error
("Invalid gamma: must be between 0 and 1");
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_smooth_idx].u_cnt =
hashed_name %
rrd.rra_def[rrd.stat_head->rra_cnt].row_cnt;
break;
case CF_FAILURES:
/* specifies the # of violations that constitutes the failure threshold */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_failure_threshold].u_cnt = atoi(token);
if (atoi(token) < 1
|| atoi(token) > MAX_FAILURES_WINDOW_LEN)
rrd_set_error
("Failure threshold is out of range %d, %d",
1, MAX_FAILURES_WINDOW_LEN);
break;
case CF_DEVPREDICT:
/* specifies the index (1-based) of CF_DEVSEASONAL array
* associated with this CF_DEVPREDICT array. */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt =
atoi(token) - 1;
break;
default:
rrd.rra_def[rrd.stat_head->rra_cnt].pdp_cnt =
atoi(token);
if (atoi(token) < 1)
rrd_set_error("Invalid step: must be >= 1");
break;
}
break;
case 3:
switch (cf_conv
(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam)) {
case CF_HWPREDICT:
case CF_MHWPREDICT:
rrd.rra_def[rrd.stat_head->rra_cnt].par[RRA_hw_beta].
u_val = atof(token);
if (atof(token) < 0.0 || atof(token) > 1.0)
rrd_set_error
("Invalid beta: must be between 0 and 1");
break;
case CF_DEVSEASONAL:
case CF_SEASONAL:
/* specifies the index (1-based) of CF_HWPREDICT array
* associated with this CF_DEVSEASONAL or CF_SEASONAL array.
* */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt =
atoi(token) - 1;
break;
case CF_FAILURES:
/* specifies the window length */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_window_len].u_cnt = atoi(token);
if (atoi(token) < 1
|| atoi(token) > MAX_FAILURES_WINDOW_LEN)
rrd_set_error
("Window length is out of range %d, %d", 1,
MAX_FAILURES_WINDOW_LEN);
/* verify that window length exceeds the failure threshold */
if (rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_window_len].u_cnt <
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_failure_threshold].u_cnt)
rrd_set_error
("Window length is shorter than the failure threshold");
break;
case CF_DEVPREDICT:
/* shouldn't be any more arguments */
rrd_set_error
("Unexpected extra argument for consolidation function DEVPREDICT");
break;
default:
row_cnt = atoi(token);
if (row_cnt <= 0)
rrd_set_error("Invalid row count: %i", row_cnt);
rrd.rra_def[rrd.stat_head->rra_cnt].row_cnt = row_cnt;
break;
}
break;
case 4:
switch (cf_conv
(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam)) {
case CF_FAILURES:
/* specifies the index (1-based) of CF_DEVSEASONAL array
* associated with this CF_DEVFAILURES array. */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt =
atoi(token) - 1;
break;
case CF_DEVSEASONAL:
case CF_SEASONAL:
/* optional smoothing window */
if (sscanf(token, "smoothing-window=%lf",
&(rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_smoothing_window].
u_val))) {
strcpy(rrd.stat_head->version, RRD_VERSION); /* smoothing-window causes Version 4 */
if (rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_smoothing_window].u_val < 0.0
|| rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_smoothing_window].u_val >
1.0) {
rrd_set_error
("Invalid smoothing-window %f: must be between 0 and 1",
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_seasonal_smoothing_window].
u_val);
}
} else {
rrd_set_error("Invalid option %s", token);
}
break;
case CF_HWPREDICT:
case CF_MHWPREDICT:
/* length of the associated CF_SEASONAL and CF_DEVSEASONAL arrays. */
period = atoi(token);
if (period >
rrd.rra_def[rrd.stat_head->rra_cnt].row_cnt)
rrd_set_error
("Length of seasonal cycle exceeds length of HW prediction array");
break;
default:
/* shouldn't be any more arguments */
rrd_set_error
("Unexpected extra argument for consolidation function %s",
rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam);
break;
}
break;
case 5:
/* If we are here, this must be a CF_HWPREDICT RRA.
* Specifies the index (1-based) of CF_SEASONAL array
* associated with this CF_HWPREDICT array. If this argument
* is missing, then the CF_SEASONAL, CF_DEVSEASONAL, CF_DEVPREDICT,
* CF_FAILURES.
* arrays are created automatically. */
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt = atoi(token) - 1;
break;
default:
/* should never get here */
rrd_set_error("Unknown error");
break;
} /* end switch */
if (rrd_test_error()) {
/* all errors are unrecoverable */
free(argvcopy);
rrd_free2(&rrd);
return (-1);
}
token = strtok_r(NULL, ":", &tokptr);
token_idx++;
} /* end while */
free(argvcopy);
#ifdef DEBUG
fprintf(stderr,
"Creating RRA CF: %s, dep idx %lu, current idx %lu\n",
rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam,
rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt, rrd.stat_head->rra_cnt);
#endif
/* should we create CF_SEASONAL, CF_DEVSEASONAL, and CF_DEVPREDICT? */
if ((cf_conv(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam) ==
CF_HWPREDICT
|| cf_conv(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam) ==
CF_MHWPREDICT)
&& rrd.rra_def[rrd.stat_head->rra_cnt].
par[RRA_dependent_rra_idx].u_cnt == rrd.stat_head->rra_cnt) {
#ifdef DEBUG
fprintf(stderr, "Creating HW contingent RRAs\n");
#endif
if (create_hw_contingent_rras(&rrd, period, hashed_name) ==
-1) {
rrd_set_error("creating contingent RRA");
rrd_free2(&rrd);
return -1;
}
}
rrd.stat_head->rra_cnt++;
} else {
rrd_set_error("can't parse argument '%s'", argv[i]);
rrd_free2(&rrd);
return -1;
}
}
if (rrd.stat_head->rra_cnt < 1) {
rrd_set_error("you must define at least one Round Robin Archive");
rrd_free2(&rrd);
return (-1);
}
if (rrd.stat_head->ds_cnt < 1) {
rrd_set_error("you must define at least one Data Source");
rrd_free2(&rrd);
return (-1);
}
return rrd_create_fn(filename, &rrd);
}
int
rrd_create(int argc, char **argv)
{
rrd_t rrd;
long i,long_tmp;
time_t last_up;
struct rrd_time_value last_up_tv;
char *parsetime_error = NULL;
/* init last_up */
last_up = time(NULL)-10;
/* init rrd clean */
rrd_init(&rrd);
/* static header */
if((rrd.stat_head = calloc(1,sizeof(stat_head_t)))==NULL){
rrd_set_error("allocating rrd.stat_head");
return(-1);
}
/* live header */
if((rrd.live_head = calloc(1,sizeof(live_head_t)))==NULL){
rrd_set_error("allocating rrd.live_head");
return(-1);
}
/* set some defaults */
strcpy(rrd.stat_head->cookie,RRD_COOKIE);
strcpy(rrd.stat_head->version,RRD_VERSION);
rrd.stat_head->float_cookie = FLOAT_COOKIE;
rrd.stat_head->ds_cnt = 0; /* this will be adjusted later */
rrd.stat_head->rra_cnt = 0; /* ditto */
rrd.stat_head->pdp_step = 300; /* 5 minute default */
/* a default value */
rrd.ds_def = NULL;
rrd.rra_def = NULL;
while (1){
static struct option long_options[] =
{
{"start", required_argument, 0, 'b'},
{"step", required_argument,0,'s'},
{0,0,0,0}
};
int option_index = 0;
int opt;
opt = getopt_long(argc, argv, "b:s:",
long_options, &option_index);
if (opt == EOF)
break;
switch(opt) {
case 'b':
if ((parsetime_error = parsetime(optarg, &last_up_tv))) {
rrd_set_error("start time: %s", parsetime_error );
rrd_free(&rrd);
return(-1);
}
if (last_up_tv.type == RELATIVE_TO_END_TIME ||
last_up_tv.type == RELATIVE_TO_START_TIME) {
rrd_set_error("specifying time relative to the 'start' "
"or 'end' makes no sense here");
rrd_free(&rrd);
return(-1);
}
last_up = mktime(&last_up_tv.tm) + last_up_tv.offset;
if (last_up < 3600*24*365*10){
rrd_set_error("the first entry to the RRD should be after 1980");
rrd_free(&rrd);
return(-1);
}
break;
case 's':
long_tmp = atol(optarg);
if (long_tmp < 1){
rrd_set_error("step size should be no less than one second");
rrd_free(&rrd);
return(-1);
}
rrd.stat_head->pdp_step = long_tmp;
break;
case '?':
if (optopt != 0)
rrd_set_error("unknown option '%c'", optopt);
else
rrd_set_error("unknown option '%s'",argv[optind-1]);
rrd_free(&rrd);
return(-1);
}
}
rrd.live_head->last_up = last_up;
for(i=optind+1;i<argc;i++){
char minstr[DS_NAM_SIZE], maxstr[DS_NAM_SIZE];
int ii;
if (strncmp(argv[i],"DS:",3)==0){
size_t old_size = sizeof(ds_def_t)*(rrd.stat_head->ds_cnt);
if((rrd.ds_def = rrd_realloc(rrd.ds_def,
old_size+sizeof(ds_def_t)))==NULL){
rrd_set_error("allocating rrd.ds_def");
rrd_free(&rrd);
return(-1);
}
memset(&rrd.ds_def[rrd.stat_head->ds_cnt], 0, sizeof(ds_def_t));
if (sscanf(&argv[i][3],
DS_NAM_FMT ":" DST_FMT ":%lu:%18[^:]:%18[^:]",
rrd.ds_def[rrd.stat_head->ds_cnt].ds_nam,
rrd.ds_def[rrd.stat_head->ds_cnt].dst,
&rrd.ds_def[rrd.stat_head->ds_cnt].par[DS_mrhb_cnt].u_cnt,
minstr,maxstr) == 5){
/* check for duplicate datasource names */
for(ii=0;ii<rrd.stat_head->ds_cnt;ii++){
if(strcmp(rrd.ds_def[rrd.stat_head->ds_cnt].ds_nam,
rrd.ds_def[ii].ds_nam) == 0){
rrd_set_error("Duplicate DS name: %s",rrd.ds_def[ii].ds_nam);
rrd_free(&rrd);
return(-1);
}
}
if(dst_conv(rrd.ds_def[rrd.stat_head->ds_cnt].dst) == -1){
rrd_free(&rrd);
return (-1);
}
if (minstr[0] == 'U' && minstr[1] == 0)
rrd.ds_def[rrd.stat_head->ds_cnt].par[DS_min_val].u_val = DNAN;
else
rrd.ds_def[rrd.stat_head->ds_cnt].par[DS_min_val].u_val = atof(minstr);
if (maxstr[0] == 'U' && maxstr[1] == 0)
rrd.ds_def[rrd.stat_head->ds_cnt].par[DS_max_val].u_val = DNAN;
else
rrd.ds_def[rrd.stat_head->ds_cnt].par[DS_max_val].u_val = atof(maxstr);
if (! isnan(rrd.ds_def[rrd.stat_head->ds_cnt].par[DS_min_val].u_val) &&
! isnan(rrd.ds_def[rrd.stat_head->ds_cnt].par[DS_max_val].u_val) &&
rrd.ds_def[rrd.stat_head->ds_cnt].par[DS_min_val].u_val
>= rrd.ds_def[rrd.stat_head->ds_cnt].par[DS_max_val].u_val ) {
rrd_set_error("min must be less than max in DS definition");
rrd_free(&rrd);
return (-1);
}
rrd.stat_head->ds_cnt++;
} else {
rrd_set_error("can't parse argument '%s'",argv[i]);
rrd_free(&rrd);
return (-1);
}
} else if (strncmp(argv[i],"RRA:",3)==0){
size_t old_size = sizeof(rra_def_t)*(rrd.stat_head->rra_cnt);
if((rrd.rra_def = rrd_realloc(rrd.rra_def,
old_size+sizeof(rra_def_t)))==NULL){
rrd_set_error("allocating rrd.rra_def");
rrd_free(&rrd);
return(-1);
}
memset(&rrd.rra_def[rrd.stat_head->rra_cnt], 0, sizeof(rra_def_t));
if (sscanf(&argv[i][4],
CF_NAM_FMT ":%lf:%lu:%lu",
rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam,
&rrd.rra_def[rrd.stat_head->rra_cnt].par[RRA_cdp_xff_val].u_val,
&rrd.rra_def[rrd.stat_head->rra_cnt].pdp_cnt,
&rrd.rra_def[rrd.stat_head->rra_cnt].row_cnt) == 4){
if(cf_conv(rrd.rra_def[rrd.stat_head->rra_cnt].cf_nam) == -1){
rrd_free(&rrd);
return (-1);
}
if (rrd.rra_def[rrd.stat_head->rra_cnt].par[RRA_cdp_xff_val].u_val<0.0 ||
rrd.rra_def[rrd.stat_head->rra_cnt].par[RRA_cdp_xff_val].u_val>=1.0) {
rrd_set_error("the xff must always be >= 0 and < 1");
rrd_free(&rrd);
return (-1);
}
rrd.stat_head->rra_cnt++;
}
else {
rrd_set_error("can't parse argument '%s'",argv[i]);
rrd_free(&rrd);
return (-1);
}
} else {
rrd_set_error("can't parse argument '%s'",argv[i]);
rrd_free(&rrd);
return -1;
}
}
if (rrd.stat_head->rra_cnt < 1){
rrd_set_error("you must define at least one Round Robin Archive");
rrd_free(&rrd);
return(-1);
}
if (rrd.stat_head->ds_cnt < 1){
rrd_set_error("you must define at least one Data Source");
rrd_free(&rrd);
return(-1);
}
return rrd_create_fn(argv[optind],&rrd);
}
/* parse the data stored in buf and return a filled rrd structure */
int xml2rrd(char* buf, rrd_t* rrd, char rc){
/* pass 1 identify number of RRAs */
char *ptr,*ptr2,*ptr3; /* walks thought the buffer */
long rows=0,mempool=0,i=0;
int rra_index;
xml_lc(buf); /* lets lowercase all active parts of the xml */
ptr=buf;
ptr2=buf;
ptr3=buf;
/* start with an RRD tag */
eat_tag(&ptr,"rrd");
/* allocate static header */
if((rrd->stat_head = calloc(1,sizeof(stat_head_t)))==NULL){
rrd_set_error("allocating rrd.stat_head");
return -1;
};
strcpy(rrd->stat_head->cookie,RRD_COOKIE);
read_tag(&ptr,"version","%4[0-9]",rrd->stat_head->version);
/* added primitive version checking */
if (atoi(rrd -> stat_head -> version) > atoi(RRD_VERSION) )
{
rrd_set_error("Incompatible file version, detected version %s is bigger than supported version %s\n",
rrd -> stat_head -> version, RRD_VERSION );
free(rrd -> stat_head);
return -1;
}
if (atoi(rrd -> stat_head -> version) < 2)
{
rrd_set_error("Can only restore version >= 2 (Not %s). Dump your old rrd using a current rrdtool dump.", rrd -> stat_head -> version );
free(rrd -> stat_head);
return -1;
}
rrd->stat_head->float_cookie = FLOAT_COOKIE;
rrd->stat_head->ds_cnt = 0;
rrd->stat_head->rra_cnt = 0;
read_tag(&ptr,"step","%lu",&(rrd->stat_head->pdp_step));
/* allocate live head */
if((rrd->live_head = calloc(1,sizeof(live_head_t)))==NULL){
rrd_set_error("allocating rrd.live_head");
return -1;
}
read_tag(&ptr,"lastupdate","%lu",&(rrd->live_head->last_up));
/* Data Source Definition Part */
ptr2 = ptr;
while (eat_tag(&ptr2,"ds") == 1){
rrd->stat_head->ds_cnt++;
if((rrd->ds_def = rrd_realloc(rrd->ds_def,rrd->stat_head->ds_cnt*sizeof(ds_def_t)))==NULL){
rrd_set_error("allocating rrd.ds_def");
return -1;
};
/* clean out memory to make sure no data gets stored from previous tasks */
memset(&(rrd->ds_def[rrd->stat_head->ds_cnt-1]), 0, sizeof(ds_def_t));
if((rrd->pdp_prep = rrd_realloc(rrd->pdp_prep,rrd->stat_head->ds_cnt
*sizeof(pdp_prep_t)))==NULL){
rrd_set_error("allocating pdp_prep");
return(-1);
}
/* clean out memory to make sure no data gets stored from previous tasks */
memset(&(rrd->pdp_prep[rrd->stat_head->ds_cnt-1]), 0, sizeof(pdp_prep_t));
read_tag(&ptr2,"name",DS_NAM_FMT,rrd->ds_def[rrd->stat_head->ds_cnt-1].ds_nam);
read_tag(&ptr2,"type",DST_FMT,rrd->ds_def[rrd->stat_head->ds_cnt-1].dst);
/* test for valid type */
if( (int)dst_conv(rrd->ds_def[rrd->stat_head->ds_cnt-1].dst) == -1) return -1;
if (dst_conv(rrd->ds_def[rrd->stat_head->ds_cnt-1].dst) != DST_CDEF)
{
read_tag(&ptr2,"minimal_heartbeat","%lu",
&(rrd->ds_def[rrd->stat_head->ds_cnt-1].par[DS_mrhb_cnt].u_cnt));
read_tag(&ptr2,"min","%lf",&(rrd->ds_def[rrd->stat_head->ds_cnt-1].par[DS_min_val].u_val));
read_tag(&ptr2,"max","%lf",&(rrd->ds_def[rrd->stat_head->ds_cnt-1].par[DS_max_val].u_val));
} else { /* DST_CDEF */
char buffer[1024];
read_tag(&ptr2,"cdef","%s",buffer);
parseCDEF_DS(buffer,rrd,rrd -> stat_head -> ds_cnt - 1);
}
read_tag(&ptr2,"last_ds","%30s",rrd->pdp_prep[rrd->stat_head->ds_cnt-1].last_ds);
read_tag(&ptr2,"value","%lf",&(rrd->pdp_prep[rrd->stat_head->ds_cnt-1].scratch[PDP_val].u_val));
read_tag(&ptr2,"unknown_sec","%lu",&(rrd->pdp_prep[rrd->stat_head->ds_cnt-1].scratch[PDP_unkn_sec_cnt].u_cnt));
eat_tag(&ptr2,"/ds");
ptr=ptr2;
}
ptr2 = ptr;
while (eat_tag(&ptr2,"rra") == 1){
rrd->stat_head->rra_cnt++;
/* allocate and reset rra definition areas */
if((rrd->rra_def = rrd_realloc(rrd->rra_def,rrd->stat_head->rra_cnt*sizeof(rra_def_t)))==NULL){
rrd_set_error("allocating rra_def"); return -1; }
memset(&(rrd->rra_def[rrd->stat_head->rra_cnt-1]), 0, sizeof(rra_def_t));
/* allocate and reset consolidation point areas */
if((rrd->cdp_prep = rrd_realloc(rrd->cdp_prep,
rrd->stat_head->rra_cnt
*rrd->stat_head->ds_cnt*sizeof(cdp_prep_t)))==NULL){
rrd_set_error("allocating cdp_prep"); return -1; }
memset(&(rrd->cdp_prep[rrd->stat_head->ds_cnt*(rrd->stat_head->rra_cnt-1)]),
0, rrd->stat_head->ds_cnt*sizeof(cdp_prep_t));
read_tag(&ptr2,"cf",CF_NAM_FMT,rrd->rra_def[rrd->stat_head->rra_cnt-1].cf_nam);
/* test for valid type */
if( (int)cf_conv(rrd->rra_def[rrd->stat_head->rra_cnt-1].cf_nam) == -1) return -1;
read_tag(&ptr2,"pdp_per_row","%lu",&(rrd->rra_def[rrd->stat_head->rra_cnt-1].pdp_cnt));
/* support to read RRA parameters */
eat_tag(&ptr2, "params");
skip(&ptr2);
rra_index = rrd->stat_head->rra_cnt - 1;
/* backwards compatibility w/ old patch */
if (strncmp(ptr2, "<value>",7) == 0) {
parse_patch1028_RRA_params(&ptr2,rrd,rra_index);
} else {
switch(cf_conv(rrd -> rra_def[rra_index].cf_nam)) {
case CF_HWPREDICT:
read_tag(&ptr2, "hw_alpha", "%lf",
&(rrd->rra_def[rra_index].par[RRA_hw_alpha].u_val));
read_tag(&ptr2, "hw_beta", "%lf",
&(rrd->rra_def[rra_index].par[RRA_hw_beta].u_val));
read_tag(&ptr2, "dependent_rra_idx", "%lu",
&(rrd->rra_def[rra_index].par[RRA_dependent_rra_idx].u_cnt));
break;
case CF_SEASONAL:
case CF_DEVSEASONAL:
read_tag(&ptr2, "seasonal_gamma", "%lf",
&(rrd->rra_def[rra_index].par[RRA_seasonal_gamma].u_val));
read_tag(&ptr2, "seasonal_smooth_idx", "%lu",
&(rrd->rra_def[rra_index].par[RRA_seasonal_smooth_idx].u_cnt));
read_tag(&ptr2, "dependent_rra_idx", "%lu",
&(rrd->rra_def[rra_index].par[RRA_dependent_rra_idx].u_cnt));
break;
case CF_FAILURES:
read_tag(&ptr2, "delta_pos", "%lf",
&(rrd->rra_def[rra_index].par[RRA_delta_pos].u_val));
read_tag(&ptr2, "delta_neg", "%lf",
&(rrd->rra_def[rra_index].par[RRA_delta_neg].u_val));
read_tag(&ptr2, "window_len", "%lu",
&(rrd->rra_def[rra_index].par[RRA_window_len].u_cnt));
read_tag(&ptr2, "failure_threshold", "%lu",
&(rrd->rra_def[rra_index].par[RRA_failure_threshold].u_cnt));
/* fall thru */
case CF_DEVPREDICT:
read_tag(&ptr2, "dependent_rra_idx", "%lu",
&(rrd->rra_def[rra_index].par[RRA_dependent_rra_idx].u_cnt));
break;
case CF_AVERAGE:
case CF_MAXIMUM:
case CF_MINIMUM:
case CF_LAST:
default:
read_tag(&ptr2, "xff","%lf",
&(rrd->rra_def[rra_index].par[RRA_cdp_xff_val].u_val));
}
}
eat_tag(&ptr2, "/params");
eat_tag(&ptr2,"cdp_prep");
for(i=0;i< (int)rrd->stat_head->ds_cnt;i++)
{
eat_tag(&ptr2,"ds");
/* support to read CDP parameters */
rra_index = rrd->stat_head->rra_cnt-1;
skip(&ptr2);
if (strncmp(ptr2, "<value>",7) == 0) {
parse_patch1028_CDP_params(&ptr2,rrd,rra_index,i);
} else {
read_tag(&ptr2, "primary_value","%lf",
&(rrd->cdp_prep[rrd->stat_head->ds_cnt*(rra_index)
+i].scratch[CDP_primary_val].u_val));
read_tag(&ptr2, "secondary_value","%lf",
&(rrd->cdp_prep[rrd->stat_head->ds_cnt*(rra_index)
+i].scratch[CDP_secondary_val].u_val));
switch(cf_conv(rrd->rra_def[rra_index].cf_nam)) {
case CF_HWPREDICT:
read_tag(&ptr2,"intercept","%lf",
&(rrd->cdp_prep[rrd->stat_head->ds_cnt*(rra_index)
+i].scratch[CDP_hw_intercept].u_val));
read_tag(&ptr2,"last_intercept","%lf",
&(rrd->cdp_prep[rrd->stat_head->ds_cnt*(rra_index)
+i].scratch[CDP_hw_last_intercept].u_val));
read_tag(&ptr2,"slope","%lf",
&(rrd->cdp_prep[rrd->stat_head->ds_cnt*(rra_index)
+i].scratch[CDP_hw_slope].u_val));
read_tag(&ptr2,"last_slope","%lf",
&(rrd->cdp_prep[rrd->stat_head->ds_cnt*(rra_index)
+i].scratch[CDP_hw_last_slope].u_val));
read_tag(&ptr2,"nan_count","%lu",
&(rrd->cdp_prep[rrd->stat_head->ds_cnt*(rra_index)
+i].scratch[CDP_null_count].u_cnt));
read_tag(&ptr2,"last_nan_count","%lu",
&(rrd->cdp_prep[rrd->stat_head->ds_cnt*(rra_index)
+i].scratch[CDP_last_null_count].u_cnt));
break;
case CF_SEASONAL:
case CF_DEVSEASONAL:
read_tag(&ptr2,"seasonal","%lf",
&(rrd->cdp_prep[rrd->stat_head->ds_cnt*(rra_index)
+i].scratch[CDP_hw_seasonal].u_val));
read_tag(&ptr2,"last_seasonal","%lf",
&(rrd->cdp_prep[rrd->stat_head->ds_cnt*(rra_index)
+i].scratch[CDP_hw_last_seasonal].u_val));
read_tag(&ptr2,"init_flag","%lu",
&(rrd->cdp_prep[rrd->stat_head->ds_cnt*(rra_index)
+i].scratch[CDP_init_seasonal].u_cnt));
break;
case CF_DEVPREDICT:
break;
case CF_FAILURES:
parse_FAILURES_history(&ptr2,rrd,rra_index,i);
break;
case CF_AVERAGE:
case CF_MAXIMUM:
case CF_MINIMUM:
case CF_LAST:
default:
read_tag(&ptr2,"value","%lf",&(rrd->cdp_prep[rrd->stat_head->ds_cnt
*(rra_index) +i].scratch[CDP_val].u_val));
read_tag(&ptr2,"unknown_datapoints","%lu",&(rrd->cdp_prep[rrd->stat_head->ds_cnt
*(rra_index) +i].scratch[CDP_unkn_pdp_cnt].u_cnt));
break;
}
}
eat_tag(&ptr2,"/ds");
}
eat_tag(&ptr2,"/cdp_prep");
rrd->rra_def[rrd->stat_head->rra_cnt-1].row_cnt=0;
eat_tag(&ptr2,"database");
ptr3 = ptr2;
while (eat_tag(&ptr3,"row") == 1){
if(mempool==0){
mempool = 1000;
if((rrd->rrd_value = rrd_realloc(rrd->rrd_value,
(rows+mempool)*(rrd->stat_head->ds_cnt)
*sizeof(rrd_value_t)))==NULL) {
rrd_set_error("allocating rrd_values"); return -1; }
}
rows++;
mempool--;
rrd->rra_def[rrd->stat_head->rra_cnt-1].row_cnt++;
for(i=0;i< (int)rrd->stat_head->ds_cnt;i++){
rrd_value_t * value = &(rrd->rrd_value[(rows-1)*rrd->stat_head->ds_cnt+i]);
read_tag(&ptr3,"v","%lf", value);
if (
(rc == 1) /* do we have to check for the ranges */
&&
(!isnan(*value)) /* not a NAN value */
&&
(dst_conv(rrd->ds_def[i].dst) != DST_CDEF)
&&
( /* min defined and in the range ? */
(!isnan(rrd->ds_def[i].par[DS_min_val].u_val)
&& (*value < rrd->ds_def[i].par[DS_min_val].u_val))
|| /* max defined and in the range ? */
(!isnan(rrd->ds_def[i].par[DS_max_val].u_val)
&& (*value > rrd->ds_def[i].par[DS_max_val].u_val))
)
) {
fprintf (stderr, "out of range found [ds: %lu], [value : %0.10e]\n", i, *value);
*value = DNAN;
}
}
eat_tag(&ptr3,"/row");
ptr2=ptr3;
}
eat_tag(&ptr2,"/database");
eat_tag(&ptr2,"/rra");
ptr=ptr2;
}
eat_tag(&ptr,"/rrd");
if((rrd->rra_ptr = calloc(1,sizeof(rra_ptr_t)*rrd->stat_head->rra_cnt)) == NULL) {
rrd_set_error("allocating rra_ptr");
return(-1);
}
for(i=0; i < (int)rrd->stat_head->rra_cnt; i++) {
/* last row in the xml file is the most recent; as
* rrd_update increments the current row pointer, set cur_row
* here to the last row. */
rrd->rra_ptr[i].cur_row = rrd->rra_def[i].row_cnt-1;
}
if (ptr==NULL)
return -1;
return 1;
}