* Authors:
* Florian octo Forster <octo at verplant.org>
* Niki W. Waibel <niki.waibel@gmx.net>
+ * Sebastian Harl <sh at tokkee.org>
+ * Michał Mirosław <mirq-linux at rere.qmqm.pl>
**/
#if HAVE_CONFIG_H
return (ret);
} /* int strsubstitute */
+int strunescape (char *buf, size_t buf_len)
+{
+ size_t i;
+
+ for (i = 0; (i < buf_len) && (buf[i] != '\0'); ++i)
+ {
+ if (buf[i] != '\\')
+ continue;
+
+ if ((i >= buf_len) || (buf[i + 1] == '\0')) {
+ ERROR ("string unescape: backslash found at end of string.");
+ return (-1);
+ }
+
+ switch (buf[i + 1]) {
+ case 't':
+ buf[i] = '\t';
+ break;
+ case 'n':
+ buf[i] = '\n';
+ break;
+ case 'r':
+ buf[i] = '\r';
+ break;
+ default:
+ buf[i] = buf[i + 1];
+ break;
+ }
+
+ memmove (buf + i + 1, buf + i + 2, buf_len - i - 2);
+ }
+ return (0);
+} /* int strunescape */
+
int escape_slashes (char *buf, int buf_len)
{
int i;
return (0);
} /* int escape_slashes */
-int timeval_sub_timespec (struct timeval *tv0, struct timeval *tv1, struct timespec *ret)
+void replace_special (char *buffer, size_t buffer_size)
{
- if ((tv0 == NULL) || (tv1 == NULL) || (ret == NULL))
- return (-2);
+ size_t i;
- if ((tv0->tv_sec < tv1->tv_sec)
- || ((tv0->tv_sec == tv1->tv_sec) && (tv0->tv_usec < tv1->tv_usec)))
- return (-1);
+ for (i = 0; i < buffer_size; i++)
+ {
+ if (buffer[i] == 0)
+ return;
+ if ((!isalnum ((int) buffer[i])) && (buffer[i] != '-'))
+ buffer[i] = '_';
+ }
+} /* void replace_special */
+
+int timeval_cmp (struct timeval tv0, struct timeval tv1, struct timeval *delta)
+{
+ struct timeval *larger;
+ struct timeval *smaller;
+
+ int status;
- ret->tv_sec = tv0->tv_sec - tv1->tv_sec;
- ret->tv_nsec = 1000 * ((long) (tv0->tv_usec - tv1->tv_usec));
+ NORMALIZE_TIMEVAL (tv0);
+ NORMALIZE_TIMEVAL (tv1);
- if (ret->tv_nsec < 0)
+ if ((tv0.tv_sec == tv1.tv_sec) && (tv0.tv_usec == tv1.tv_usec))
{
- assert (ret->tv_sec > 0);
+ if (delta != NULL) {
+ delta->tv_sec = 0;
+ delta->tv_usec = 0;
+ }
+ return (0);
+ }
- ret->tv_nsec += 1000000000;
- ret->tv_sec -= 1;
+ if ((tv0.tv_sec < tv1.tv_sec)
+ || ((tv0.tv_sec == tv1.tv_sec) && (tv0.tv_usec < tv1.tv_usec)))
+ {
+ larger = &tv1;
+ smaller = &tv0;
+ status = -1;
+ }
+ else
+ {
+ larger = &tv0;
+ smaller = &tv1;
+ status = 1;
}
- return (0);
-}
+ if (delta != NULL) {
+ delta->tv_sec = larger->tv_sec - smaller->tv_sec;
+
+ if (smaller->tv_usec <= larger->tv_usec)
+ delta->tv_usec = larger->tv_usec - smaller->tv_usec;
+ else
+ {
+ --delta->tv_sec;
+ delta->tv_usec = 1000000 + larger->tv_usec - smaller->tv_usec;
+ }
+ }
+
+ assert ((delta == NULL)
+ || ((0 <= delta->tv_usec) && (delta->tv_usec < 1000000)));
+
+ return (status);
+} /* int timeval_cmp */
int check_create_dir (const char *file_orig)
{
char *saveptr;
int last_is_file = 1;
int path_is_absolute = 0;
- int len;
+ size_t len;
int i;
/*
*/
if (fields[i][0] == '.')
{
- ERROR ("Cowardly refusing to create a directory that begins with a `.' (dot): `%s'", file_orig);
+ ERROR ("Cowardly refusing to create a directory that "
+ "begins with a `.' (dot): `%s'", file_orig);
return (-2);
}
return (-1);
}
- if (stat (dir, &statbuf) == -1)
- {
- if (errno == ENOENT)
+ while (42) {
+ if (stat (dir, &statbuf) == -1)
{
- if (mkdir (dir, 0755) == -1)
+ if (errno == ENOENT)
{
+ if (mkdir (dir, 0755) == 0)
+ break;
+
+ /* this might happen, if a different thread created
+ * the directory in the meantime
+ * => call stat() again to check for S_ISDIR() */
+ if (EEXIST == errno)
+ continue;
+
char errbuf[1024];
ERROR ("check_create_dir: mkdir (%s): %s", dir,
sstrerror (errno,
errbuf, sizeof (errbuf)));
return (-1);
}
+ else
+ {
+ char errbuf[1024];
+ ERROR ("check_create_dir: stat (%s): %s", dir,
+ sstrerror (errno, errbuf,
+ sizeof (errbuf)));
+ return (-1);
+ }
}
- else
+ else if (!S_ISDIR (statbuf.st_mode))
{
- char errbuf[1024];
- ERROR ("stat (%s): %s", dir,
- sstrerror (errno, errbuf,
- sizeof (errbuf)));
+ ERROR ("check_create_dir: `%s' exists but is not "
+ "a directory!", dir);
return (-1);
}
- }
- else if (!S_ISDIR (statbuf.st_mode))
- {
- ERROR ("stat (%s): Not a directory!", dir);
- return (-1);
+ break;
}
}
return (0);
} /* int parse_identifier */
+int parse_value (const char *value, value_t *ret_value, const data_source_t ds)
+{
+ char *endptr = NULL;
+
+ if (DS_TYPE_COUNTER == ds.type)
+ ret_value->counter = (counter_t)strtoll (value, &endptr, 0);
+ else if (DS_TYPE_GAUGE == ds.type)
+ ret_value->gauge = (gauge_t)strtod (value, &endptr);
+ else {
+ ERROR ("parse_value: Invalid data source \"%s\" "
+ "(type = %i).", ds.name, ds.type);
+ return -1;
+ }
+
+ if (value == endptr) {
+ ERROR ("parse_value: Failed to parse string as number: %s.", value);
+ return -1;
+ }
+ else if ((NULL != endptr) && ('\0' != *endptr))
+ WARNING ("parse_value: Ignoring trailing garbage after number: %s.",
+ endptr);
+ return 0;
+} /* int parse_value */
+
int parse_values (char *buffer, value_list_t *vl, const data_set_t *ds)
{
int i;
}
else
{
- if (strcmp ("U", ptr) == 0)
+ if ((strcmp ("U", ptr) == 0) && (ds->ds[i].type == DS_TYPE_GAUGE))
vl->values[i].gauge = NAN;
- else if (ds->ds[i].type == DS_TYPE_COUNTER)
- vl->values[i].counter = atoll (ptr);
- else if (ds->ds[i].type == DS_TYPE_GAUGE)
- vl->values[i].gauge = atof (ptr);
+ else if (0 != parse_value (ptr, &vl->values[i], ds->ds[i]))
+ return -1;
}
i++;
return n;
}
+counter_t counter_diff (counter_t old_value, counter_t new_value)
+{
+ counter_t diff;
+
+ if (old_value > new_value)
+ {
+ if (old_value <= 4294967295U)
+ diff = (4294967295U - old_value) + new_value;
+ else
+ diff = (18446744073709551615ULL - old_value)
+ + new_value;
+ }
+ else
+ {
+ diff = new_value - old_value;
+ }
+ return (diff);
+} /* counter_t counter_to_gauge */
projects / collectd.git / blobdiff