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BLACK_AUDIT macro for paranoid checks on data consistency

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Summary:
Triggers a breakpoint when the debugger is attached to a debug build. Otherwise, logs a warning.

Related: T101

Reviewers: kbasan, rwinklmeier

Reviewed By: kbasan

Subscribers: jenkins

Tags: #swift_pilot_client

Differential Revision: https://dev.swift-project.org/D35
This commit is contained in:
Mathew Sutcliffe
2017-07-07 14:25:52 +01:00
parent 7d7ce055ef
commit c790e344ac
2 changed files with 37 additions and 18 deletions
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14
src/blackmisc/verify.h
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@@ -30,7 +30,7 @@ namespace BlackMisc
inline void noop() {}
//! \private Called by BLACK_VERIFY when the condition is false.
BLACKMISC_EXPORT BLACK_NO_INLINE void failedVerify(const char *condition, const char *filename, int line, const char *context = nullptr, const char *message = nullptr);
BLACKMISC_EXPORT BLACK_NO_INLINE void failedVerify(const char *condition, const char *filename, int line, const char *context, const char *message, bool audit);
}
}
@@ -39,8 +39,18 @@ namespace BlackMisc
* In debug builds, triggers a debugger breakpoint. In release builds, generates a warning.
*/
//! @{
#define BLACK_VERIFY_X(COND, WHERE, WHAT) ((COND) ? BlackMisc::Private::noop() : BlackMisc::Private::failedVerify(#COND, __FILE__, __LINE__, WHERE, WHAT))
#define BLACK_VERIFY_X(COND, WHERE, WHAT) ((COND) ? BlackMisc::Private::noop() : BlackMisc::Private::failedVerify(#COND, __FILE__, __LINE__, WHERE, WHAT, false))
#define BLACK_VERIFY(COND) BLACK_VERIFY_X(COND, nullptr, nullptr)
//! @}
/*!
* A weaker kind of verify. Indicative of a serious but recoverable problem originating in an external data source.
* In debug builds under debugging, triggers a debugger breakpoint. Otherwise generates a warning.
* Not a substitute for proper validation. A failed audit in production is suggestive of insufficient validation.
*/
//! @{
#define BLACK_AUDIT_X(COND, WHERE, WHAT) ((COND) ? BlackMisc::Private::noop() : BlackMisc::Private::failedVerify(#COND, __FILE__, __LINE__, WHERE, WHAT, true))
#define BLACK_AUDIT(COND) BLACK_AUDIT_X(COND, nullptr, nullptr)
//! @}
#endif