81 lines
3.2 KiB
C
81 lines
3.2 KiB
C
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/*
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* Copyright 2006 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef RTC_BASE_CHECKS_H_
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#define RTC_BASE_CHECKS_H_
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# include <stdio.h>
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// If you for some reson need to know if DCHECKs are on, test the value of
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// RTC_DCHECK_IS_ON. (Test its value, not if it's defined; it'll always be
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// defined, to either a true or a false value.)
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#if !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)
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#define RTC_DCHECK_IS_ON 1
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#else
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#define RTC_DCHECK_IS_ON 0
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#endif
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// Annotate a function that will not return control flow to the caller.
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#if defined(_MSC_VER)
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#define RTC_NORETURN __declspec(noreturn)
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#elif defined(__GNUC__)
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#define RTC_NORETURN __attribute__((__noreturn__))
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#else
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#define RTC_NORETURN
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#endif
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#ifdef RTC_DISABLE_CHECK_MSG
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#define RTC_CHECK_MSG_ENABLED 0
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#else
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#define RTC_CHECK_MSG_ENABLED 1
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#endif
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#if RTC_CHECK_MSG_ENABLED
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#define RTC_CHECK_EVAL_MESSAGE(message) message
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#else
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#define RTC_CHECK_EVAL_MESSAGE(message) ""
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#endif
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// C version. Lacks many features compared to the C++ version, but usage
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// guidelines are the same.
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#define rtc_FatalMessage(file, line, msg) printf("[%s:%d]%s \n", file, line, msg)
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#define RTC_CHECK(condition) \
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do { \
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if (!(condition)) { \
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rtc_FatalMessage(__FILE__, __LINE__, \
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RTC_CHECK_EVAL_MESSAGE("CHECK failed: " #condition)); \
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} \
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} while (0)
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#define RTC_CHECK_EQ(a, b) RTC_CHECK((a) == (b))
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#define RTC_CHECK_NE(a, b) RTC_CHECK((a) != (b))
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#define RTC_CHECK_LE(a, b) RTC_CHECK((a) <= (b))
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#define RTC_CHECK_LT(a, b) RTC_CHECK((a) < (b))
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#define RTC_CHECK_GE(a, b) RTC_CHECK((a) >= (b))
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#define RTC_CHECK_GT(a, b) RTC_CHECK((a) > (b))
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#define RTC_DCHECK(condition) \
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do { \
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if (RTC_DCHECK_IS_ON && !(condition)) { \
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rtc_FatalMessage(__FILE__, __LINE__, \
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RTC_CHECK_EVAL_MESSAGE("DCHECK failed: " #condition)); \
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} \
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} while (0)
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#define RTC_DCHECK_EQ(a, b) RTC_DCHECK((a) == (b))
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#define RTC_DCHECK_NE(a, b) RTC_DCHECK((a) != (b))
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#define RTC_DCHECK_LE(a, b) RTC_DCHECK((a) <= (b))
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#define RTC_DCHECK_LT(a, b) RTC_DCHECK((a) < (b))
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#define RTC_DCHECK_GE(a, b) RTC_DCHECK((a) >= (b))
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#define RTC_DCHECK_GT(a, b) RTC_DCHECK((a) > (b))
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#define RTC_UNREACHABLE_CODE_HIT false
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#define RTC_NOTREACHED() RTC_DCHECK(RTC_UNREACHABLE_CODE_HIT)
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#endif // RTC_BASE_CHECKS_H_
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