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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef BASE_LOGGING_H_ | 5 #ifndef BASE_LOGGING_H_ |
6 #define BASE_LOGGING_H_ | 6 #define BASE_LOGGING_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 | 9 |
10 #include <cassert> | 10 #include <cassert> |
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630 LAZY_STREAM(PLOG_STREAM(severity), DLOG_IS_ON(severity)) | 630 LAZY_STREAM(PLOG_STREAM(severity), DLOG_IS_ON(severity)) |
631 | 631 |
632 #define DVLOG(verboselevel) DVLOG_IF(verboselevel, VLOG_IS_ON(verboselevel)) | 632 #define DVLOG(verboselevel) DVLOG_IF(verboselevel, VLOG_IS_ON(verboselevel)) |
633 | 633 |
634 #define DVPLOG(verboselevel) DVPLOG_IF(verboselevel, VLOG_IS_ON(verboselevel)) | 634 #define DVPLOG(verboselevel) DVPLOG_IF(verboselevel, VLOG_IS_ON(verboselevel)) |
635 | 635 |
636 // Definitions for DCHECK et al. | 636 // Definitions for DCHECK et al. |
637 | 637 |
638 #if DCHECK_IS_ON() | 638 #if DCHECK_IS_ON() |
639 | 639 |
640 // If DCHECK is configured to dump-without-crashing then omit these, so that | |
641 // anything using them directly will break the build. See crbug.com/596231. | |
642 #if !defined(DCHECK_IS_DUMP_WITHOUT_CRASH) | |
643 | |
640 #define COMPACT_GOOGLE_LOG_EX_DCHECK(ClassName, ...) \ | 644 #define COMPACT_GOOGLE_LOG_EX_DCHECK(ClassName, ...) \ |
641 COMPACT_GOOGLE_LOG_EX_FATAL(ClassName , ##__VA_ARGS__) | 645 COMPACT_GOOGLE_LOG_EX_FATAL(ClassName , ##__VA_ARGS__) |
642 #define COMPACT_GOOGLE_LOG_DCHECK COMPACT_GOOGLE_LOG_FATAL | 646 #define COMPACT_GOOGLE_LOG_DCHECK COMPACT_GOOGLE_LOG_FATAL |
643 const LogSeverity LOG_DCHECK = LOG_FATAL; | 647 const LogSeverity LOG_DCHECK = LOG_FATAL; |
644 | 648 |
649 #endif // !defined(DCHECK_IS_DUMP_WITHOUT_CRASH) | |
650 | |
645 #else // DCHECK_IS_ON() | 651 #else // DCHECK_IS_ON() |
646 | 652 |
647 // These are just dummy values. | 653 // These are just dummy values. |
648 #define COMPACT_GOOGLE_LOG_EX_DCHECK(ClassName, ...) \ | 654 #define COMPACT_GOOGLE_LOG_EX_DCHECK(ClassName, ...) \ |
649 COMPACT_GOOGLE_LOG_EX_INFO(ClassName , ##__VA_ARGS__) | 655 COMPACT_GOOGLE_LOG_EX_INFO(ClassName , ##__VA_ARGS__) |
650 #define COMPACT_GOOGLE_LOG_DCHECK COMPACT_GOOGLE_LOG_INFO | 656 #define COMPACT_GOOGLE_LOG_DCHECK COMPACT_GOOGLE_LOG_INFO |
651 const LogSeverity LOG_DCHECK = LOG_INFO; | 657 const LogSeverity LOG_DCHECK = LOG_INFO; |
652 | 658 |
653 #endif // DCHECK_IS_ON() | 659 #endif // DCHECK_IS_ON() |
654 | 660 |
655 // DCHECK et al. make sure to reference |condition| regardless of | 661 // DCHECK et al. make sure to reference |condition| regardless of |
656 // whether DCHECKs are enabled; this is so that we don't get unused | 662 // whether DCHECKs are enabled; this is so that we don't get unused |
657 // variable warnings if the only use of a variable is in a DCHECK. | 663 // variable warnings if the only use of a variable is in a DCHECK. |
658 // This behavior is different from DLOG_IF et al. | 664 // This behavior is different from DLOG_IF et al. |
659 | 665 |
660 #if defined(_PREFAST_) && defined(OS_WIN) | 666 #if defined(_PREFAST_) && defined(OS_WIN) |
661 // See comments on the previous use of __analysis_assume. | 667 // See comments on the previous use of __analysis_assume. |
662 | 668 |
663 #define DCHECK(condition) \ | 669 #define DCHECK(condition) \ |
664 __analysis_assume(!!(condition)), \ | 670 __analysis_assume(!!(condition)), \ |
665 LAZY_STREAM(LOG_STREAM(DCHECK), false) \ | 671 LAZY_STREAM(LOG_STREAM(DCHECK), false) \ |
666 << "Check failed: " #condition ". " | 672 << "Check failed: " #condition ". " |
667 | 673 |
668 #define DPCHECK(condition) \ | 674 #define DPCHECK(condition) \ |
669 __analysis_assume(!!(condition)), \ | 675 __analysis_assume(!!(condition)), \ |
670 LAZY_STREAM(PLOG_STREAM(DCHECK), false) \ | 676 LAZY_STREAM(PLOG_STREAM(DCHECK), false) \ |
671 << "Check failed: " #condition ". " | 677 << "Check failed: " #condition ". " |
672 | 678 |
679 #elif defined(DCHECK_IS_DUMP_WITHOUT_CRASH) | |
680 // DCHECK is configured to dump-without-crashing, rather than logging. | |
681 // See crbug.com/596231. | |
682 | |
683 BASE_EXPORT void DCheckDumpWithoutCrashing(); | |
684 | |
685 #define DCHECK(condition) (condition) ? (void) 0 : logging::DCheckDumpWithoutCr ashing(), EAT_STREAM_PARAMETERS | |
scottmg
2016/03/21 17:28:12
extra spaces and 80col
Wez
2016/03/23 04:18:13
Done.
| |
686 | |
687 // Since we're uploading a crash dump, not logging, DPCHECK behaves identically. | |
688 #define DPCHECK(condition) DCHECK(condition) | |
689 | |
673 #else // _PREFAST_ | 690 #else // _PREFAST_ |
674 | 691 |
675 #define DCHECK(condition) \ | 692 #define DCHECK(condition) \ |
676 LAZY_STREAM(LOG_STREAM(DCHECK), DCHECK_IS_ON() ? !(condition) : false) \ | 693 LAZY_STREAM(LOG_STREAM(DCHECK), DCHECK_IS_ON() ? !(condition) : false) \ |
677 << "Check failed: " #condition ". " | 694 << "Check failed: " #condition ". " |
678 | 695 |
679 #define DPCHECK(condition) \ | 696 #define DPCHECK(condition) \ |
680 LAZY_STREAM(PLOG_STREAM(DCHECK), DCHECK_IS_ON() ? !(condition) : false) \ | 697 LAZY_STREAM(PLOG_STREAM(DCHECK), DCHECK_IS_ON() ? !(condition) : false) \ |
681 << "Check failed: " #condition ". " | 698 << "Check failed: " #condition ". " |
682 | 699 |
683 #endif // _PREFAST_ | 700 #endif // _PREFAST_ |
684 | 701 |
685 // Helper macro for binary operators. | 702 // Helper macro for binary operators. |
686 // Don't use this macro directly in your code, use DCHECK_EQ et al below. | 703 // Don't use this macro directly in your code, use DCHECK_EQ et al below. |
704 | |
705 #if defined(DCHECK_IS_DUMP_WITHOUT_CRASH) | |
706 // DCHECK is configured to dump-without-crashing, rather than logging. | |
707 // See crbug.com/596231. | |
708 | |
709 // Use logging::Check*Impl() to ensure that operator<<()s don't go unused. | |
710 #define DCHECK_OP(name, op, val1, val2) DCHECK(logging::Check##name##Impl((val1) , (val2), #val1 " " #op " " #val2)) | |
scottmg
2016/03/21 17:28:12
80col
Wez
2016/03/23 04:18:13
Done.
(git cl format does macros - awesome!)
| |
711 | |
712 #else | |
713 | |
687 // The 'switch' is used to prevent the 'else' from being ambiguous when the | 714 // The 'switch' is used to prevent the 'else' from being ambiguous when the |
688 // macro is used in an 'if' clause such as: | 715 // macro is used in an 'if' clause such as: |
689 // if (a == 1) | 716 // if (a == 1) |
690 // DCHECK_EQ(2, a); | 717 // DCHECK_EQ(2, a); |
691 #define DCHECK_OP(name, op, val1, val2) \ | 718 #define DCHECK_OP(name, op, val1, val2) \ |
692 switch (0) case 0: default: \ | 719 switch (0) case 0: default: \ |
693 if (logging::CheckOpResult true_if_passed = \ | 720 if (logging::CheckOpResult true_if_passed = \ |
694 DCHECK_IS_ON() ? \ | 721 DCHECK_IS_ON() ? \ |
695 logging::Check##name##Impl((val1), (val2), \ | 722 logging::Check##name##Impl((val1), (val2), \ |
696 #val1 " " #op " " #val2) : nullptr) \ | 723 #val1 " " #op " " #val2) : nullptr) \ |
697 ; \ | 724 ; \ |
698 else \ | 725 else \ |
699 logging::LogMessage(__FILE__, __LINE__, ::logging::LOG_DCHECK, \ | 726 logging::LogMessage(__FILE__, __LINE__, ::logging::LOG_DCHECK, \ |
700 true_if_passed.message()).stream() | 727 true_if_passed.message()).stream() |
701 | 728 |
729 #endif | |
730 | |
702 // Equality/Inequality checks - compare two values, and log a | 731 // Equality/Inequality checks - compare two values, and log a |
703 // LOG_DCHECK message including the two values when the result is not | 732 // LOG_DCHECK message including the two values when the result is not |
704 // as expected. The values must have operator<<(ostream, ...) | 733 // as expected. The values must have operator<<(ostream, ...) |
705 // defined. | 734 // defined. |
706 // | 735 // |
707 // You may append to the error message like so: | 736 // You may append to the error message like so: |
708 // DCHECK_NE(1, 2) << ": The world must be ending!"; | 737 // DCHECK_NE(1, 2) << ": The world must be ending!"; |
709 // | 738 // |
710 // We are very careful to ensure that each argument is evaluated exactly | 739 // We are very careful to ensure that each argument is evaluated exactly |
711 // once, and that anything which is legal to pass as a function argument is | 740 // once, and that anything which is legal to pass as a function argument is |
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956 #elif NOTIMPLEMENTED_POLICY == 5 | 985 #elif NOTIMPLEMENTED_POLICY == 5 |
957 #define NOTIMPLEMENTED() do {\ | 986 #define NOTIMPLEMENTED() do {\ |
958 static bool logged_once = false;\ | 987 static bool logged_once = false;\ |
959 LOG_IF(ERROR, !logged_once) << NOTIMPLEMENTED_MSG;\ | 988 LOG_IF(ERROR, !logged_once) << NOTIMPLEMENTED_MSG;\ |
960 logged_once = true;\ | 989 logged_once = true;\ |
961 } while(0);\ | 990 } while(0);\ |
962 EAT_STREAM_PARAMETERS | 991 EAT_STREAM_PARAMETERS |
963 #endif | 992 #endif |
964 | 993 |
965 #endif // BASE_LOGGING_H_ | 994 #endif // BASE_LOGGING_H_ |
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