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Unified Diff: base/time.cc

Issue 624713003: Keep only base/extractor.[cc|h]. (Closed) Base URL: https://chromium.googlesource.com/external/omaha.git@master
Patch Set: Created 6 years, 2 months ago
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Index: base/time.cc
diff --git a/base/time.cc b/base/time.cc
deleted file mode 100644
index 7c6d91c4cae5ac4a9f2f18a5a4847396b88da3c2..0000000000000000000000000000000000000000
--- a/base/time.cc
+++ /dev/null
@@ -1,504 +0,0 @@
-// Copyright 2004-2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-//
-// Time functions
-
-#include "omaha/base/time.h"
-#include "omaha/base/commontypes.h"
-#include "omaha/base/debug.h"
-#include "omaha/base/error.h"
-#include "omaha/base/logging.h"
-#include "omaha/base/string.h"
-#include "omaha/base/utils.h"
-
-namespace omaha {
-
-// Date Constants
-
-#define kNumOfDays 7
-#define kNumOfMonth 12
-
-static const TCHAR kRFC822_DateDelimiters[] = _T(" ,:");
-static const TCHAR kRFC822_TimeDelimiter[] = _T(":");
-SELECTANY const TCHAR* kRFC822_Day[kNumOfDays] = {
- _T("Mon"),
- _T("Tue"),
- _T("Wed"),
- _T("Thu"),
- _T("Fri"),
- _T("Sat"),
- _T("Sun") };
-
-SELECTANY const TCHAR* kRFC822_Month[kNumOfMonth] = {
- _T("Jan"),
- _T("Feb"),
- _T("Mar"),
- _T("Apr"),
- _T("May"),
- _T("Jun"),
- _T("Jul"),
- _T("Aug"),
- _T("Sep"),
- _T("Oct"),
- _T("Nov"),
- _T("Dec") };
-
-struct TimeZoneInfo {
- const TCHAR* zone_name;
- int hour_dif;
-};
-
-SELECTANY TimeZoneInfo kRFC822_TimeZone[] = {
- { _T("UT"), 0 },
- { _T("GMT"), 0 },
- { _T("EST"), -5 },
- { _T("EDT"), -4 },
- { _T("CST"), -6 },
- { _T("CDT"), -5 },
- { _T("MST"), -7 },
- { _T("MDT"), -6 },
- { _T("PST"), -8 },
- { _T("PDT"), -7 },
- { _T("A"), -1 }, // Military time zones
- { _T("B"), -2 },
- { _T("C"), -3 },
- { _T("D"), -4 },
- { _T("E"), -5 },
- { _T("F"), -6 },
- { _T("G"), -7 },
- { _T("H"), -8 },
- { _T("I"), -9 },
- { _T("K"), -10 },
- { _T("L"), -11 },
- { _T("M"), -12 },
- { _T("N"), 1 },
- { _T("O"), 2 },
- { _T("P"), 3 },
- { _T("Q"), 4 },
- { _T("R"), 5 },
- { _T("S"), 6 },
- { _T("T"), 7 },
- { _T("U"), 8 },
- { _T("V"), 9 },
- { _T("W"), 10 },
- { _T("X"), 11 },
- { _T("Y"), 12 },
- { _T("Z"), 0 },
-};
-
-SELECTANY const TCHAR *days[] =
- { L"Sun", L"Mon", L"Tue", L"Wed", L"Thu", L"Fri", L"Sat" };
-
-SELECTANY const TCHAR *months[] = {
- L"Jan",
- L"Feb",
- L"Mar",
- L"Apr",
- L"May",
- L"Jun",
- L"Jul",
- L"Aug",
- L"Sep",
- L"Oct",
- L"Nov",
- L"Dec"
-};
-
-// NOTE: so long as the output is used internally only, no localization is
-// needed here.
-CString ConvertTimeToGMTString(const FILETIME *ft) {
- ASSERT(ft, (L""));
-
- CString s;
- SYSTEMTIME st;
- if (!FileTimeToSystemTime(ft, &st)) {
- return L"";
- }
-
- // same as FormatGmt(_T("%a, %d %b %Y %H:%M:%S GMT"));
- s.Format(NOTRANSL(L"%s, %02d %s %d %02d:%02d:%02d GMT"), days[st.wDayOfWeek],
- st.wDay, months[st.wMonth-1], st.wYear, st.wHour, st.wMinute, st.wSecond);
- return s;
-}
-
-time64 ConvertTime16ToTime64(uint16 time16) {
- return time16 * kTimeGranularity + kStart100NsTime;
-}
-
-uint16 ConvertTime64ToTime16(time64 time) {
- ASSERT1(time >= kStart100NsTime);
-
- time64 t64 = (time - kStart100NsTime) / kTimeGranularity;
- ASSERT1(t64 <= kTime16Max);
-
- return static_cast<uint16>(t64);
-}
-
-time64 TimeTToTime64(const time_t& old_value) {
- FILETIME file_time;
- TimeTToFileTime(old_value, &file_time);
- return FileTimeToTime64(file_time);
-}
-
-#ifdef _DEBUG
-void ComputeStartTime() {
- SYSTEMTIME start_system_time = kStartSystemTime;
- time64 start_100ns_time = SystemTimeToTime64(&start_system_time);
- UTIL_LOG(L1, (_T("posting list starting time = %s\n"),
- String_Int64ToString(start_100ns_time, 10)));
-}
-#endif
-
-// Time management
-
-// Allow the unittest to override.
-static time64 time_override = 0;
-
-// #ifdef UNITTEST
-void SetTimeOverride(const time64 & time_new) {
- time_override = time_new;
-}
-
-// #endif
-
-time64 GetCurrent100NSTime() {
- if (time_override != 0)
- return time_override;
-
- // In order gte the 100ns time we shouldn't use SystemTime
- // as it's granularity is 1 ms. Below is the correct implementation.
- // On the other hand the system clock granularity is 15 ms, so we
- // are not gaining much by having the timestamp in nano-sec
- // If we decide to go with ms, divide "time64 time" by 10000
- // SYSTEMTIME sys_time;
- // GetLocalTime(&sys_time);
- // return SystemTimeToTime64(&sys_time);
-
- // get the current time in 100-nanoseconds intervals
- FILETIME file_time;
- ::GetSystemTimeAsFileTime(&file_time);
-
- time64 time = FileTimeToTime64(file_time);
- return time;
-}
-
-time64 GetCurrentMsTime() {
- return GetCurrent100NSTime() / kMillisecsTo100ns;
-}
-
-time64 SystemTimeToTime64(const SYSTEMTIME* sys_time) {
- ASSERT1(sys_time);
-
- FILETIME file_time;
- SetZero(file_time);
-
- if (!::SystemTimeToFileTime(sys_time, &file_time)) {
- UTIL_LOG(LE,
- (_T("[SystemTimeToTime64 - failed to SystemTimeToFileTime][0x%x]"),
- HRESULTFromLastError()));
- return 0;
- }
-
- return FileTimeToTime64(file_time);
-}
-
-// returns a value compatible with EXE/DLL timestamps
-// and the C time() function
-// NOTE: behavior is independent of wMilliseconds value
-int32 SystemTimeToInt32(const SYSTEMTIME *sys_time) {
- ASSERT(sys_time, (L""));
-
- time64 t64 = SystemTimeToTime64(sys_time);
- int32 t32 = 0;
-
- if (t64 != 0) {
- t32 = Time64ToInt32(t64);
- }
- return t32;
-}
-
-int32 Time64ToInt32(const time64 & time) {
- // convert to 32-bit format
- // time() (32-bit) measures seconds since 1970/01/01 00:00:00 (UTC)
- // FILETIME (64-bit) measures 100-ns intervals since 1601/01/01 00:00:00 (UTC)
-
- // seconds between 1601 and 1970
- time64 t32 = (time / kSecsTo100ns) -
- ((time64(60*60*24) * time64(365*369 + 89)));
- ASSERT(t32 == (t32 & 0x7FFFFFFF), (L"")); // make sure it fits
-
- // cast at the end (avoids overflow/underflow when computing 32-bit value)
- return static_cast<int32>(t32);
-}
-
-time64 Int32ToTime64(const int32 & time) {
- // convert to 64-bit format
- // time() (32-bit) measures seconds since 1970/01/01 00:00:00 (UTC)
- // FILETIME (64-bit) measures 100-ns intervals since 1601/01/01 00:00:00 (UTC)
-
- // seconds between 1601 and 1970
- time64 t64 = (static_cast<time64>(time) +
- (time64(60*60*24) * time64(365*369 + 89))) * kSecsTo100ns;
- return t64;
-}
-
-// TODO(omaha): The next 2 functions can fail if FileTimeToLocalFileTime or
-// FileTimeToSystemTime fails.
-// Consider having it return a HRESULT. Right now if FileTimeToSystemTime fails,
-// it returns an undefined value.
-
-// Convert a uint to a genuine systemtime
-SYSTEMTIME Time64ToSystemTime(const time64& time) {
- FILETIME file_time;
- SetZero(file_time);
- Time64ToFileTime(time, &file_time);
-
- SYSTEMTIME sys_time;
- SetZero(sys_time);
- if (!FileTimeToSystemTime(&file_time, &sys_time)) {
- UTIL_LOG(LE, (_T("[Time64ToSystemTime]")
- _T("[failed to FileTimeToSystemTime][0x%x]"),
- HRESULTFromLastError()));
- }
-
- return sys_time;
-}
-
-
-// Convert a uint to a genuine localtime
-// Should ONLY be used for display, since internally we use only UTC
-SYSTEMTIME Time64ToLocalTime(const time64& time) {
- FILETIME file_time;
- SetZero(file_time);
- Time64ToFileTime(time, &file_time);
-
- FILETIME local_file_time;
- SetZero(local_file_time);
- if (!FileTimeToLocalFileTime(&file_time, &local_file_time)) {
- UTIL_LOG(LE, (_T("[Time64ToLocalTime]")
- _T("[failed to FileTimeToLocalFileTime][0x%x]"),
- HRESULTFromLastError()));
- }
-
- SYSTEMTIME local_time;
- SetZero(local_time);
- if (!FileTimeToSystemTime(&local_file_time, &local_time)) {
- UTIL_LOG(LE, (_T("[Time64ToLocalTime]")
- _T("[failed to FileTimeToSystemTime][0x%x]"),
- HRESULTFromLastError()));
- }
-
- return local_time;
-}
-
-time64 FileTimeToTime64(const FILETIME & file_time) {
- return static_cast<time64>(
- file_time.dwHighDateTime) << 32 | file_time.dwLowDateTime;
-}
-
-void Time64ToFileTime(const time64 & time, FILETIME *ft) {
- ASSERT(ft, (L""));
-
- ft->dwHighDateTime = static_cast<DWORD>(time >> 32);
- ft->dwLowDateTime = static_cast<DWORD>(time & 0xffffffff);
-}
-
-// Convert from FILETIME to time_t
-time_t FileTimeToTimeT(const FILETIME& file_time) {
- return static_cast<time_t>(
- (FileTimeToTime64(file_time) - kTimeTConvValue) / kSecsTo100ns);
-}
-
-// Convert from time_t to FILETIME
-void TimeTToFileTime(const time_t& time, FILETIME* file_time) {
- ASSERT1(file_time);
-
- LONGLONG ll = Int32x32To64(time, kSecsTo100ns) + kTimeTConvValue;
- file_time->dwLowDateTime = static_cast<DWORD>(ll);
- file_time->dwHighDateTime = static_cast<DWORD>(ll >> 32);
-}
-
-// Parses RFC 822 Date/Time format
-// 5. DATE AND TIME SPECIFICATION
-// 5.1. SYNTAX
-//
-// date-time = [ day "," ] date time ; dd mm yy
-// ; hh:mm:ss zzz
-// day = "Mon" / "Tue" / "Wed" / "Thu"
-// / "Fri" / "Sat" / "Sun"
-//
-// date = 1*2DIGIT month 2DIGIT ; day month year
-// ; e.g. 20 Jun 82
-//
-// month = "Jan" / "Feb" / "Mar" / "Apr"
-// / "May" / "Jun" / "Jul" / "Aug"
-// / "Sep" / "Oct" / "Nov" / "Dec"
-//
-// time = hour zone ; ANSI and Military
-//
-// hour = 2DIGIT ":" 2DIGIT [":" 2DIGIT]
-// ; 00:00:00 - 23:59:59
-//
-// zone = "UT" / "GMT" ; Universal Time
-// ; North American : UT
-// / "EST" / "EDT" ; Eastern: - 5/ - 4
-// / "CST" / "CDT" ; Central: - 6/ - 5
-// / "MST" / "MDT" ; Mountain: - 7/ - 6
-// / "PST" / "PDT" ; Pacific: - 8/ - 7
-// / 1ALPHA ; Military: Z = UT;
-// ; A:-1; (J not used)
-// ; M:-12; N:+1; Y:+12
-// / ( ("+" / "-") 4DIGIT ) ; Local differential
-// ; hours+min. (HHMM)
-// return local time if ret_local_time == true,
-// return time is GMT / UTC time otherwise
-bool RFC822DateToSystemTime(const TCHAR* str_RFC822_date,
- SYSTEMTIME* psys_time,
- bool ret_local_time) {
- ASSERT(str_RFC822_date != NULL, (L""));
- ASSERT(psys_time != NULL, (L""));
-
- CString str_date = str_RFC822_date;
- CString str_token;
- int cur_pos = 0;
-
- str_token= str_date.Tokenize(kRFC822_DateDelimiters, cur_pos);
- if (str_token == "")
- return false;
-
- int i = 0;
- for (i = 0; i < kNumOfDays; i++) {
- if (str_token == kRFC822_Day[i]) {
- str_token = str_date.Tokenize(kRFC822_DateDelimiters, cur_pos);
- if (str_token == "")
- return false;
- break;
- }
- }
-
- int day = String_StringToInt(str_token);
- if (day < 0 || day > 31)
- return false;
-
- str_token = str_date.Tokenize(kRFC822_DateDelimiters, cur_pos);
- if (str_token == "")
- return false;
-
- int month = -1;
- for (i = 0; i < kNumOfMonth; i++) {
- if (str_token == kRFC822_Month[i]) {
- month = i+1; // month is 1 based number
- break;
- }
- }
- if (month == -1) // month not found
- return false;
-
- str_token = str_date.Tokenize(kRFC822_DateDelimiters, cur_pos);
- if (str_token == "")
- return false;
-
- int year = String_StringToInt(str_token);
- if (year < 100) // two digit year format, convert to 1950 - 2050 range
- if (year < 50)
- year += 2000;
- else
- year += 1900;
-
- str_token = str_date.Tokenize(kRFC822_DateDelimiters, cur_pos);
- if (str_token == "")
- return false;
-
- int hour = String_StringToInt(str_token);
- if (hour < 0 || hour > 23)
- return false;
-
- str_token = str_date.Tokenize(kRFC822_DateDelimiters, cur_pos);
- if (str_token == "")
- return false;
-
- int minute = String_StringToInt(str_token);
- if (minute < 0 || minute > 59)
- return false;
-
- str_token = str_date.Tokenize(kRFC822_DateDelimiters, cur_pos);
- if (str_token == "")
- return false;
-
- int second = 0;
- // distingushed between XX:XX and XX:XX:XX time formats
- if (str_token.GetLength() == 2 &&
- String_IsDigit(str_token[0]) &&
- String_IsDigit(str_token[1])) {
- second = String_StringToInt(str_token);
- if (second < 0 || second > 59)
- return false;
-
- str_token = str_date.Tokenize(kRFC822_DateDelimiters, cur_pos);
- if (str_token == "")
- return false;
- }
-
- int bias = 0;
- if (str_token[0] == '+' ||
- str_token[0] == '-' ||
- String_IsDigit(str_token[0])) { // numeric format
- int zone = String_StringToInt(str_token);
-
- // zone is in HHMM format, need to convert to the number of minutes
- bias = (zone / 100) * 60 + (zone % 100);
- } else { // text format
- for (i = 0; i < sizeof(kRFC822_TimeZone) / sizeof(TimeZoneInfo); i++)
- if (str_token == kRFC822_TimeZone[i].zone_name) {
- bias = kRFC822_TimeZone[i].hour_dif * 60;
- break;
- }
- }
-
- SYSTEMTIME mail_time;
- memset(&mail_time, 0, sizeof(mail_time));
-
- mail_time.wYear = static_cast<WORD>(year);
- mail_time.wMonth = static_cast<WORD>(month);
- mail_time.wDay = static_cast<WORD>(day);
- mail_time.wHour = static_cast<WORD>(hour);
- mail_time.wMinute = static_cast<WORD>(minute);
- mail_time.wSecond = static_cast<WORD>(second);
-
- // TzSpecificLocalTimeToSystemTime() is incompatible with Win 2000,
- // convert time manually here
- time64 time_64 = SystemTimeToTime64(&mail_time);
- time_64 = time_64 - (bias*kMinsTo100ns);
-
- *psys_time = Time64ToSystemTime(time_64);
-
- if (ret_local_time) {
- TIME_ZONE_INFORMATION local_time_zone_info;
- SYSTEMTIME universal_time = *psys_time;
-
- if (GetTimeZoneInformation(&local_time_zone_info) == TIME_ZONE_ID_INVALID) {
- return false;
- }
- if (!SystemTimeToTzSpecificLocalTime(&local_time_zone_info,
- &universal_time,
- psys_time)) {
- return false;
- }
- }
- return true;
-}
-
-} // namespace omaha
-
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