/** * Traced Function Exit return types. * Flags indicating the number and types of varargs included in a call * to a UTraceExit function. * Bits 0-3: The function return type. First variable param. * Bit 4: Flag for presence of U_ErrorCode status param. * @internal
*/ typedefenum UTraceExitVal { /** The traced function returns no value @internal */
UTRACE_EXITV_NONE = 0, /** The traced function returns an int32_t, or compatible, type. @internal */
UTRACE_EXITV_I32 = 1, /** The traced function returns a pointer @internal */
UTRACE_EXITV_PTR = 2, /** The traced function returns a UBool @internal */
UTRACE_EXITV_BOOL = 3, /** Mask to extract the return type values from a UTraceExitVal @internal */
UTRACE_EXITV_MASK = 0xf, /** Bit indicating that the traced function includes a UErrorCode parameter @internal */
UTRACE_EXITV_STATUS = 0x10
} UTraceExitVal;
/** * Trace function for the entry point of a function. * Do not use directly, use UTRACE_ENTRY instead. * @param fnNumber The UTraceFunctionNumber for the current function. * @internal
*/
U_CAPI void U_EXPORT2
utrace_entry(int32_t fnNumber);
/** * Trace function for each exit point of a function. * Do not use directly, use UTRACE_EXIT* instead. * @param fnNumber The UTraceFunctionNumber for the current function. * @param returnType The type of the value returned by the function. * @param errorCode The UErrorCode value at function exit. See UTRACE_EXIT. * @internal
*/
U_CAPI void U_EXPORT2
utrace_exit(int32_t fnNumber, int32_t returnType, ...);
/** * Trace function used inside functions that have a UTRACE_ENTRY() statement. * Do not use directly, use UTRACE_DATAX() macros instead. * * @param utraceFnNumber The number of the current function, from the local * variable of the same name. * @param level The trace level for this message. * @param fmt The trace format string. * * @internal
*/
U_CAPI void U_EXPORT2
utrace_data(int32_t utraceFnNumber, int32_t level, constchar *fmt, ...);
U_CDECL_END
#if U_ENABLE_TRACING
/** * Boolean expression to see if ICU tracing is turned on * to at least the specified level. * @internal
*/ #define UTRACE_LEVEL(level) (utrace_getLevel()>=(level))
/** * Flag bit in utraceFnNumber, the local variable added to each function * with tracing code to contains the function number. * * Set the flag if the function's entry is traced, which will cause the * function's exit to also be traced. utraceFnNumber is uncoditionally * set at entry, whether or not the entry is traced, so that it will * always be available for error trace output. * @internal
*/ #define UTRACE_TRACED_ENTRY 0x80000000
/** * Trace statement for the entry point of a function. * Stores the function number in a local variable. * In C code, must be placed immediately after the last variable declaration. * Must be matched with UTRACE_EXIT() at all function exit points. * * Tracing should start with UTRACE_ENTRY after checking for * U_FAILURE at function entry, so that if a function returns immediately * because of a pre-existing error condition, it does not show up in the trace, * consistent with ICU's error handling model. * * @param fnNumber The UTraceFunctionNumber for the current function. * @internal
*/ #define UTRACE_ENTRY(fnNumber) \
int32_t utraceFnNumber=(fnNumber); \
UPRV_BLOCK_MACRO_BEGIN { \ if(utrace_getLevel()>=UTRACE_INFO) { \
utrace_entry(fnNumber); \
utraceFnNumber |= UTRACE_TRACED_ENTRY; \
} \
} UPRV_BLOCK_MACRO_END
/** * Trace statement for the entry point of open and close functions. * Produces trace output at a less verbose setting than plain UTRACE_ENTRY * Stores the function number in a local variable. * In C code, must be placed immediately after the last variable declaration. * Must be matched with UTRACE_EXIT() at all function exit points. * * @param fnNumber The UTraceFunctionNumber for the current function. * @internal
*/ #define UTRACE_ENTRY_OC(fnNumber) \
int32_t utraceFnNumber=(fnNumber); \
UPRV_BLOCK_MACRO_BEGIN { \ if(utrace_getLevel()>=UTRACE_OPEN_CLOSE) { \
utrace_entry(fnNumber); \
utraceFnNumber |= UTRACE_TRACED_ENTRY; \
} \
} UPRV_BLOCK_MACRO_END
/** * Trace statement for each exit point of a function that has a UTRACE_ENTRY() * statement. * * @param errorCode The function's ICU UErrorCode value at function exit, * or U_ZERO_ERROR if the function does not use a UErrorCode. * 0==U_ZERO_ERROR indicates success, * positive values an error (see u_errorName()), * negative values an informational status. * * @internal
*/ #define UTRACE_EXIT() UPRV_BLOCK_MACRO_BEGIN { \ if(utraceFnNumber & UTRACE_TRACED_ENTRY) { \
utrace_exit(utraceFnNumber & ~UTRACE_TRACED_ENTRY, UTRACE_EXITV_NONE); \
} \
} UPRV_BLOCK_MACRO_END
/** * Trace statement for each exit point of a function that has a UTRACE_ENTRY() * statement, and that returns a value. * * @param val The function's return value, int32_t or compatible type. * * @internal
*/ #define UTRACE_EXIT_VALUE(val) UPRV_BLOCK_MACRO_BEGIN { \ if(utraceFnNumber & UTRACE_TRACED_ENTRY) { \
utrace_exit(utraceFnNumber & ~UTRACE_TRACED_ENTRY, UTRACE_EXITV_I32, val); \
} \
} UPRV_BLOCK_MACRO_END
/** * Trace statement used inside functions that have a UTRACE_ENTRY() statement. * Takes no data arguments. * The number of arguments for this macro must match the number of inserts * in the format string. Vector inserts count as two arguments. * Calls utrace_data() if the level is high enough. * @internal
*/ #define UTRACE_DATA0(level, fmt) UPRV_BLOCK_MACRO_BEGIN { \ if(UTRACE_LEVEL(level)) { \
utrace_data(utraceFnNumber & ~UTRACE_TRACED_ENTRY, (level), (fmt)); \
} \
} UPRV_BLOCK_MACRO_END
/** * Trace statement used inside functions that have a UTRACE_ENTRY() statement. * Takes one data argument. * The number of arguments for this macro must match the number of inserts * in the format string. Vector inserts count as two arguments. * Calls utrace_data() if the level is high enough. * @internal
*/ #define UTRACE_DATA1(level, fmt, a) UPRV_BLOCK_MACRO_BEGIN { \ if(UTRACE_LEVEL(level)) { \
utrace_data(utraceFnNumber & ~UTRACE_TRACED_ENTRY , (level), (fmt), (a)); \
} \
} UPRV_BLOCK_MACRO_END
/** * Trace statement used inside functions that have a UTRACE_ENTRY() statement. * Takes two data arguments. * The number of arguments for this macro must match the number of inserts * in the format string. Vector inserts count as two arguments. * Calls utrace_data() if the level is high enough. * @internal
*/ #define UTRACE_DATA2(level, fmt, a, b) UPRV_BLOCK_MACRO_BEGIN { \ if(UTRACE_LEVEL(level)) { \
utrace_data(utraceFnNumber & ~UTRACE_TRACED_ENTRY , (level), (fmt), (a), (b)); \
} \
} UPRV_BLOCK_MACRO_END
/** * Trace statement used inside functions that have a UTRACE_ENTRY() statement. * Takes three data arguments. * The number of arguments for this macro must match the number of inserts * in the format string. Vector inserts count as two arguments. * Calls utrace_data() if the level is high enough. * @internal
*/ #define UTRACE_DATA3(level, fmt, a, b, c) UPRV_BLOCK_MACRO_BEGIN { \ if(UTRACE_LEVEL(level)) { \
utrace_data(utraceFnNumber & ~UTRACE_TRACED_ENTRY, (level), (fmt), (a), (b), (c)); \
} \
} UPRV_BLOCK_MACRO_END
/** * Trace statement used inside functions that have a UTRACE_ENTRY() statement. * Takes four data arguments. * The number of arguments for this macro must match the number of inserts * in the format string. Vector inserts count as two arguments. * Calls utrace_data() if the level is high enough. * @internal
*/ #define UTRACE_DATA4(level, fmt, a, b, c, d) UPRV_BLOCK_MACRO_BEGIN { \ if(UTRACE_LEVEL(level)) { \
utrace_data(utraceFnNumber & ~UTRACE_TRACED_ENTRY, (level), (fmt), (a), (b), (c), (d)); \
} \
} UPRV_BLOCK_MACRO_END
/** * Trace statement used inside functions that have a UTRACE_ENTRY() statement. * Takes five data arguments. * The number of arguments for this macro must match the number of inserts * in the format string. Vector inserts count as two arguments. * Calls utrace_data() if the level is high enough. * @internal
*/ #define UTRACE_DATA5(level, fmt, a, b, c, d, e) UPRV_BLOCK_MACRO_BEGIN { \ if(UTRACE_LEVEL(level)) { \
utrace_data(utraceFnNumber & ~UTRACE_TRACED_ENTRY, (level), (fmt), (a), (b), (c), (d), (e)); \
} \
} UPRV_BLOCK_MACRO_END
/** * Trace statement used inside functions that have a UTRACE_ENTRY() statement. * Takes six data arguments. * The number of arguments for this macro must match the number of inserts * in the format string. Vector inserts count as two arguments. * Calls utrace_data() if the level is high enough. * @internal
*/ #define UTRACE_DATA6(level, fmt, a, b, c, d, e, f) UPRV_BLOCK_MACRO_BEGIN { \ if(UTRACE_LEVEL(level)) { \
utrace_data(utraceFnNumber & ~UTRACE_TRACED_ENTRY, (level), (fmt), (a), (b), (c), (d), (e), (f)); \
} \
} UPRV_BLOCK_MACRO_END
/** * Trace statement used inside functions that have a UTRACE_ENTRY() statement. * Takes seven data arguments. * The number of arguments for this macro must match the number of inserts * in the format string. Vector inserts count as two arguments. * Calls utrace_data() if the level is high enough. * @internal
*/ #define UTRACE_DATA7(level, fmt, a, b, c, d, e, f, g) UPRV_BLOCK_MACRO_BEGIN { \ if(UTRACE_LEVEL(level)) { \
utrace_data(utraceFnNumber & ~UTRACE_TRACED_ENTRY, (level), (fmt), (a), (b), (c), (d), (e), (f), (g)); \
} \
} UPRV_BLOCK_MACRO_END
/** * Trace statement used inside functions that have a UTRACE_ENTRY() statement. * Takes eight data arguments. * The number of arguments for this macro must match the number of inserts * in the format string. Vector inserts count as two arguments. * Calls utrace_data() if the level is high enough. * @internal
*/ #define UTRACE_DATA8(level, fmt, a, b, c, d, e, f, g, h) UPRV_BLOCK_MACRO_BEGIN { \ if(UTRACE_LEVEL(level)) { \
utrace_data(utraceFnNumber & ~UTRACE_TRACED_ENTRY, (level), (fmt), (a), (b), (c), (d), (e), (f), (g), (h)); \
} \
} UPRV_BLOCK_MACRO_END
/** * Trace statement used inside functions that have a UTRACE_ENTRY() statement. * Takes nine data arguments. * The number of arguments for this macro must match the number of inserts * in the format string. Vector inserts count as two arguments. * Calls utrace_data() if the level is high enough. * @internal
*/ #define UTRACE_DATA9(level, fmt, a, b, c, d, e, f, g, h, i) UPRV_BLOCK_MACRO_BEGIN { \ if(UTRACE_LEVEL(level)) { \
utrace_data(utraceFnNumber & ~UTRACE_TRACED_ENTRY, (level), (fmt), (a), (b), (c), (d), (e), (f), (g), (h), (i)); \
} \
} UPRV_BLOCK_MACRO_END
#else
/* * When tracing is disabled, the following macros become empty
*/
#define UTRACE_LEVEL(level) 0 #define UTRACE_ENTRY(fnNumber) #define UTRACE_ENTRY_OC(fnNumber) #define UTRACE_EXIT() #define UTRACE_EXIT_VALUE(val) #define UTRACE_EXIT_STATUS(status) #define UTRACE_EXIT_VALUE_STATUS(val, status) #define UTRACE_EXIT_PTR_STATUS(ptr, status) #define UTRACE_DATA0(level, fmt) #define UTRACE_DATA1(level, fmt, a) #define UTRACE_DATA2(level, fmt, a, b) #define UTRACE_DATA3(level, fmt, a, b, c) #define UTRACE_DATA4(level, fmt, a, b, c, d) #define UTRACE_DATA5(level, fmt, a, b, c, d, e) #define UTRACE_DATA6(level, fmt, a, b, c, d, e, f) #define UTRACE_DATA7(level, fmt, a, b, c, d, e, f, g) #define UTRACE_DATA8(level, fmt, a, b, c, d, e, f, g, h) #define UTRACE_DATA9(level, fmt, a, b, c, d, e, f, g, h, i)
#endif
#endif
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