mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-05-21 00:22:33 +00:00
86 lines
1.7 KiB
C
86 lines
1.7 KiB
C
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#include <string.h>
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#include <sys/time.h>
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#include <time.h>
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#include <errno.h>
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#include <inttypes.h>
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#include "perf.h"
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#include "debug.h"
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#include "time-utils.h"
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#include "util.h"
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static int parse_timestr_sec_nsec(struct perf_time_interval *ptime,
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char *start_str, char *end_str)
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{
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if (start_str && (*start_str != '\0') &&
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(parse_nsec_time(start_str, &ptime->start) != 0)) {
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return -1;
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}
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if (end_str && (*end_str != '\0') &&
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(parse_nsec_time(end_str, &ptime->end) != 0)) {
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return -1;
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}
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return 0;
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}
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int perf_time__parse_str(struct perf_time_interval *ptime, const char *ostr)
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{
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char *start_str, *end_str;
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char *d, *str;
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int rc = 0;
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if (ostr == NULL || *ostr == '\0')
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return 0;
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/* copy original string because we need to modify it */
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str = strdup(ostr);
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if (str == NULL)
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return -ENOMEM;
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ptime->start = 0;
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ptime->end = 0;
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/* str has the format: <start>,<stop>
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* variations: <start>,
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* ,<stop>
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* ,
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*/
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start_str = str;
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d = strchr(start_str, ',');
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if (d) {
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*d = '\0';
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++d;
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}
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end_str = d;
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rc = parse_timestr_sec_nsec(ptime, start_str, end_str);
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free(str);
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/* make sure end time is after start time if it was given */
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if (rc == 0 && ptime->end && ptime->end < ptime->start)
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return -EINVAL;
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pr_debug("start time %" PRIu64 ", ", ptime->start);
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pr_debug("end time %" PRIu64 "\n", ptime->end);
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return rc;
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}
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bool perf_time__skip_sample(struct perf_time_interval *ptime, u64 timestamp)
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{
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/* if time is not set don't drop sample */
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if (timestamp == 0)
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return false;
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/* otherwise compare sample time to time window */
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if ((ptime->start && timestamp < ptime->start) ||
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(ptime->end && timestamp > ptime->end)) {
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return true;
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}
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return false;
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}
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