common: compile libcommon as C++

[lttng-tools.git] / src / common / time.c

diff --git a/src/common/time.c b/src/common/time.c
deleted file mode 100644 (file)
index ccb5874..0000000
--- a/src/common/time.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * Copyright (C) 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * SPDX-License-Identifier: GPL-2.0-only
- *
- */
-
-#include <common/time.h>
-#include <common/error.h>
-#include <common/macros.h>
-#include <common/error.h>
-#include <common/compat/errno.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <limits.h>
-#include <pthread.h>
-#include <locale.h>
-#include <string.h>
-
-static bool utf8_output_supported;
-
-bool locale_supports_utf8(void)
-{
-       return utf8_output_supported;
-}
-
-int timespec_to_ms(struct timespec ts, unsigned long *ms)
-{
-       unsigned long res, remain_ms;
-
-       if (ts.tv_sec > ULONG_MAX / MSEC_PER_SEC) {
-               errno = EOVERFLOW;
-               return -1;      /* multiplication overflow */
-       }
-       res = ts.tv_sec * MSEC_PER_SEC;
-       remain_ms = ULONG_MAX - res;
-       if (ts.tv_nsec / NSEC_PER_MSEC > remain_ms) {
-               errno = EOVERFLOW;
-               return -1;      /* addition overflow */
-       }
-       res += ts.tv_nsec / NSEC_PER_MSEC;
-       *ms = res;
-       return 0;
-}
-
-struct timespec timespec_abs_diff(struct timespec t1, struct timespec t2)
-{
-       uint64_t ts1 = (uint64_t) t1.tv_sec * (uint64_t) NSEC_PER_SEC +
-                       (uint64_t) t1.tv_nsec;
-       uint64_t ts2 = (uint64_t) t2.tv_sec * (uint64_t) NSEC_PER_SEC +
-                       (uint64_t) t2.tv_nsec;
-       uint64_t diff = max(ts1, ts2) - min(ts1, ts2);
-       struct timespec res;
-
-       res.tv_sec = diff / (uint64_t) NSEC_PER_SEC;
-       res.tv_nsec = diff % (uint64_t) NSEC_PER_SEC;
-       return res;
-}
-
-static
-void __attribute__((constructor)) init_locale_utf8_support(void)
-{
-       const char *program_locale = setlocale(LC_ALL, NULL);
-       const char *lang = getenv("LANG");
-
-       if (program_locale && strstr(program_locale, "utf8")) {
-               utf8_output_supported = true;
-       } else if (lang && strstr(lang, "utf8")) {
-               utf8_output_supported = true;
-       }
-}
-
-int time_to_iso8601_str(time_t time, char *str, size_t len)
-{
-       int ret = 0;
-       struct tm *tm_result;
-       struct tm tm_storage;
-       size_t strf_ret;
-
-       if (len < ISO8601_STR_LEN) {
-               ERR("Buffer too short to format ISO 8601 timestamp: %zu bytes provided when at least %zu are needed",
-                               len, ISO8601_STR_LEN);
-               ret = -1;
-               goto end;
-       }
-
-       tm_result = localtime_r(&time, &tm_storage);
-       if (!tm_result) {
-               ret = -1;
-               PERROR("Failed to break down timestamp to tm structure");
-               goto end;
-       }
-
-       strf_ret = strftime(str, len, "%Y%m%dT%H%M%S%z", tm_result);
-       if (strf_ret == 0) {
-               ret = -1;
-               ERR("Failed to format timestamp as local time");
-               goto end;
-       }
-end:
-       return ret;
-}
-
-int time_to_datetime_str(time_t time, char *str, size_t len)
-{
-       int ret = 0;
-       struct tm *tm_result;
-       struct tm tm_storage;
-       size_t strf_ret;
-
-       if (len < DATETIME_STR_LEN) {
-               ERR("Buffer too short to format to datetime: %zu bytes provided when at least %zu are needed",
-                               len, DATETIME_STR_LEN);
-               ret = -1;
-               goto end;
-       }
-
-       tm_result = localtime_r(&time, &tm_storage);
-       if (!tm_result) {
-               ret = -1;
-               PERROR("Failed to break down timestamp to tm structure");
-               goto end;
-       }
-
-       strf_ret = strftime(str, len, "%Y%m%d-%H%M%S", tm_result);
-       if (strf_ret == 0) {
-               ret = -1;
-               ERR("Failed to format timestamp as local time");
-               goto end;
-       }
-end:
-       return ret;
-}