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130 lines
2.7 KiB
130 lines
2.7 KiB
4 months ago
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <ctype.h>
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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#include <private/android_logger.h>
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// Add %#q for fractional seconds to standard strptime function
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char* log_time::strptime(const char* s, const char* format) {
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time_t now;
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#ifdef __linux__
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*this = log_time(CLOCK_REALTIME);
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now = tv_sec;
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#else
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time(&now);
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tv_sec = now;
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tv_nsec = 0;
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#endif
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struct tm* ptm;
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#if !defined(_WIN32)
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struct tm tmBuf;
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ptm = localtime_r(&now, &tmBuf);
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#else
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ptm = localtime(&now);
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#endif
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char fmt[strlen(format) + 1];
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strcpy(fmt, format);
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char* ret = const_cast<char*>(s);
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char* cp;
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for (char* f = cp = fmt;; ++cp) {
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if (!*cp) {
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if (f != cp) {
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ret = ::strptime(ret, f, ptm);
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}
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break;
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}
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if (*cp != '%') {
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continue;
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}
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char* e = cp;
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++e;
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#if (defined(__BIONIC__))
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if (*e == 's') {
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*cp = '\0';
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if (*f) {
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ret = ::strptime(ret, f, ptm);
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if (!ret) {
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break;
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}
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}
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tv_sec = 0;
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while (isdigit(*ret)) {
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tv_sec = tv_sec * 10 + *ret - '0';
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++ret;
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}
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now = tv_sec;
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#if !defined(_WIN32)
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ptm = localtime_r(&now, &tmBuf);
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#else
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ptm = localtime(&now);
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#endif
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} else
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#endif
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{
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unsigned num = 0;
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while (isdigit(*e)) {
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num = num * 10 + *e - '0';
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++e;
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}
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if (*e != 'q') {
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continue;
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}
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*cp = '\0';
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if (*f) {
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ret = ::strptime(ret, f, ptm);
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if (!ret) {
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break;
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}
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}
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unsigned long mul = NS_PER_SEC;
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if (num == 0) {
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num = INT_MAX;
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}
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tv_nsec = 0;
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while (isdigit(*ret) && num && (mul > 1)) {
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--num;
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mul /= 10;
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tv_nsec = tv_nsec + (*ret - '0') * mul;
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++ret;
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}
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}
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f = cp = e;
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++f;
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}
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if (ret) {
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tv_sec = mktime(ptm);
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return ret;
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}
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// Upon error, place a known value into the class, the current time.
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#ifdef __linux__
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*this = log_time(CLOCK_REALTIME);
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#else
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time(&now);
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tv_sec = now;
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tv_nsec = 0;
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#endif
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return ret;
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}
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