diff options
Diffstat (limited to 'src/sqliteInt.h')
| -rw-r--r-- | src/sqliteInt.h | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/src/sqliteInt.h b/src/sqliteInt.h index 3b22e94ca..9f9985f4b 100644 --- a/src/sqliteInt.h +++ b/src/sqliteInt.h @@ -11,7 +11,7 @@ ************************************************************************* ** Internal interface definitions for SQLite. ** -** @(#) $Id: sqliteInt.h,v 1.738 2008/07/08 23:40:20 drh Exp $ +** @(#) $Id: sqliteInt.h,v 1.739 2008/07/09 13:28:54 drh Exp $ */ #ifndef _SQLITEINT_H_ #define _SQLITEINT_H_ @@ -62,6 +62,26 @@ # define testcase(X) #endif +/* +** The failsafe() macro is used to test for error conditions that +** should never occur. This is similar to assert() except that with +** failsafe() the application attempts to recover gracefully rather +** than abort. If a error condition is detected, a global flag is +** set to the "Id" prior to recovery in order to alert the application +** to the error condition. +** +** The Id should be a random integer. The idea behind the Id is that +** failsafe() faults in the field can be mapped back to specific failsafe() +** macros, even if line numbers and filenames have changed. +** +** The test condition is argument Cond. The recovery action is +** argument Action. +*/ +#ifdef SQLITE_COVERAGE_TEST +# define failsafe(Cond,Id,Action) +#else +# define failsafe(Cond,Id,Action) if( Cond ){ sqlite3Failsafe(Id); Action; } +#endif /* ** The macro unlikely() is a hint that surrounds a boolean @@ -1756,6 +1776,7 @@ struct Sqlite3Config { int bCoreMutex; /* True to enable core mutexing */ int bFullMutex; /* True to enable full mutexing */ int mxStrlen; /* Maximum string length */ + int iFailsafe; /* Id of failed failsafe() */ sqlite3_mem_methods m; /* Low-level memory allocation interface */ sqlite3_mutex_methods mutex; /* Low-level mutex interface */ void *pHeap; /* Heap storage space */ @@ -1791,10 +1812,8 @@ struct Sqlite3Config { #ifdef SQLITE_DEBUG int sqlite3Corrupt(void); # define SQLITE_CORRUPT_BKPT sqlite3Corrupt() -# define DEBUGONLY(X) X #else # define SQLITE_CORRUPT_BKPT SQLITE_CORRUPT -# define DEBUGONLY(X) #endif /* @@ -2001,6 +2020,7 @@ void sqlite3RegisterDateTimeFunctions(sqlite3*); #endif int sqlite3SafetyCheckOk(sqlite3*); int sqlite3SafetyCheckSickOrOk(sqlite3*); +void sqlite3Failsafe(int); void sqlite3ChangeCookie(Parse*, int); void sqlite3MaterializeView(Parse*, Select*, Expr*, int); |