diff options
Diffstat (limited to 'tools/perf/util/time-utils.c')
| -rw-r--r-- | tools/perf/util/time-utils.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/tools/perf/util/time-utils.c b/tools/perf/util/time-utils.c index 0443b2afd0cf..d1b21c72206d 100644 --- a/tools/perf/util/time-utils.c +++ b/tools/perf/util/time-utils.c @@ -1,5 +1,7 @@ +#include <stdlib.h> #include <string.h> #include <sys/time.h> +#include <linux/time64.h> #include <time.h> #include <errno.h> #include <inttypes.h> @@ -7,7 +9,39 @@ #include "perf.h" #include "debug.h" #include "time-utils.h" -#include "util.h" + +int parse_nsec_time(const char *str, u64 *ptime) +{ + u64 time_sec, time_nsec; + char *end; + + time_sec = strtoul(str, &end, 10); + if (*end != '.' && *end != '\0') + return -1; + + if (*end == '.') { + int i; + char nsec_buf[10]; + + if (strlen(++end) > 9) + return -1; + + strncpy(nsec_buf, end, 9); + nsec_buf[9] = '\0'; + + /* make it nsec precision */ + for (i = strlen(nsec_buf); i < 9; i++) + nsec_buf[i] = '0'; + + time_nsec = strtoul(nsec_buf, &end, 10); + if (*end != '\0') + return -1; + } else + time_nsec = 0; + + *ptime = time_sec * NSEC_PER_SEC + time_nsec; + return 0; +} static int parse_timestr_sec_nsec(struct perf_time_interval *ptime, char *start_str, char *end_str) |