mirror of
https://github.com/godotengine/godot.git
synced 2024-12-27 11:24:59 +08:00
505 lines
16 KiB
C++
505 lines
16 KiB
C++
// © 2016 and later: Unicode, Inc. and others.
|
|
// License & terms of use: http://www.unicode.org/copyright.html
|
|
/*
|
|
*******************************************************************************
|
|
* Copyright (C) 2003-2014, International Business Machines
|
|
* Corporation and others. All Rights Reserved.
|
|
*******************************************************************************
|
|
* file name: utrace.c
|
|
* encoding: UTF-8
|
|
* tab size: 8 (not used)
|
|
* indentation:4
|
|
*/
|
|
|
|
#include "unicode/utrace.h"
|
|
#include "utracimp.h"
|
|
#include "cstring.h"
|
|
#include "uassert.h"
|
|
#include "ucln_cmn.h"
|
|
|
|
|
|
static UTraceEntry *pTraceEntryFunc = NULL;
|
|
static UTraceExit *pTraceExitFunc = NULL;
|
|
static UTraceData *pTraceDataFunc = NULL;
|
|
static const void *gTraceContext = NULL;
|
|
|
|
/**
|
|
* \var utrace_level
|
|
* Trace level variable. Negative for "off".
|
|
*/
|
|
static int32_t
|
|
utrace_level = UTRACE_ERROR;
|
|
|
|
U_CAPI void U_EXPORT2
|
|
utrace_entry(int32_t fnNumber) {
|
|
if (pTraceEntryFunc != NULL) {
|
|
(*pTraceEntryFunc)(gTraceContext, fnNumber);
|
|
}
|
|
}
|
|
|
|
|
|
static const char gExitFmt[] = "Returns.";
|
|
static const char gExitFmtValue[] = "Returns %d.";
|
|
static const char gExitFmtStatus[] = "Returns. Status = %d.";
|
|
static const char gExitFmtValueStatus[] = "Returns %d. Status = %d.";
|
|
static const char gExitFmtPtrStatus[] = "Returns %d. Status = %p.";
|
|
|
|
U_CAPI void U_EXPORT2
|
|
utrace_exit(int32_t fnNumber, int32_t returnType, ...) {
|
|
if (pTraceExitFunc != NULL) {
|
|
va_list args;
|
|
const char *fmt;
|
|
|
|
switch (returnType) {
|
|
case 0:
|
|
fmt = gExitFmt;
|
|
break;
|
|
case UTRACE_EXITV_I32:
|
|
fmt = gExitFmtValue;
|
|
break;
|
|
case UTRACE_EXITV_STATUS:
|
|
fmt = gExitFmtStatus;
|
|
break;
|
|
case UTRACE_EXITV_I32 | UTRACE_EXITV_STATUS:
|
|
fmt = gExitFmtValueStatus;
|
|
break;
|
|
case UTRACE_EXITV_PTR | UTRACE_EXITV_STATUS:
|
|
fmt = gExitFmtPtrStatus;
|
|
break;
|
|
default:
|
|
UPRV_UNREACHABLE_EXIT;
|
|
}
|
|
|
|
va_start(args, returnType);
|
|
(*pTraceExitFunc)(gTraceContext, fnNumber, fmt, args);
|
|
va_end(args);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
U_CAPI void U_EXPORT2
|
|
utrace_data(int32_t fnNumber, int32_t level, const char *fmt, ...) {
|
|
if (pTraceDataFunc != NULL) {
|
|
va_list args;
|
|
va_start(args, fmt );
|
|
(*pTraceDataFunc)(gTraceContext, fnNumber, level, fmt, args);
|
|
va_end(args);
|
|
}
|
|
}
|
|
|
|
|
|
static void outputChar(char c, char *outBuf, int32_t *outIx, int32_t capacity, int32_t indent) {
|
|
int32_t i;
|
|
/* Check whether a start of line indenting is needed. Three cases:
|
|
* 1. At the start of the first line (output index == 0).
|
|
* 2. At the start of subsequent lines (preceding char in buffer == '\n')
|
|
* 3. When preflighting buffer len (buffer capacity is exceeded), when
|
|
* a \n is output. Ideally we wouldn't do the indent until the following char
|
|
* is received, but that won't work because there's no place to remember that
|
|
* the preceding char was \n. Meaning that we may overstimate the
|
|
* buffer size needed. No harm done.
|
|
*/
|
|
if (*outIx==0 || /* case 1. */
|
|
(c!='\n' && c!=0 && *outIx < capacity && outBuf[(*outIx)-1]=='\n') || /* case 2. */
|
|
(c=='\n' && *outIx>=capacity)) /* case 3 */
|
|
{
|
|
/* At the start of a line. Indent. */
|
|
for(i=0; i<indent; i++) {
|
|
if (*outIx < capacity) {
|
|
outBuf[*outIx] = ' ';
|
|
}
|
|
(*outIx)++;
|
|
}
|
|
}
|
|
|
|
if (*outIx < capacity) {
|
|
outBuf[*outIx] = c;
|
|
}
|
|
if (c != 0) {
|
|
/* Nulls only appear as end-of-string terminators. Move them to the output
|
|
* buffer, but do not update the length of the buffer, so that any
|
|
* following output will overwrite the null. */
|
|
(*outIx)++;
|
|
}
|
|
}
|
|
|
|
static void outputHexBytes(int64_t val, int32_t charsToOutput,
|
|
char *outBuf, int32_t *outIx, int32_t capacity) {
|
|
static const char gHexChars[] = "0123456789abcdef";
|
|
int32_t shiftCount;
|
|
for (shiftCount=(charsToOutput-1)*4; shiftCount >= 0; shiftCount-=4) {
|
|
char c = gHexChars[(val >> shiftCount) & 0xf];
|
|
outputChar(c, outBuf, outIx, capacity, 0);
|
|
}
|
|
}
|
|
|
|
/* Output a pointer value in hex. Work with any size of pointer */
|
|
static void outputPtrBytes(void *val, char *outBuf, int32_t *outIx, int32_t capacity) {
|
|
uint32_t i;
|
|
int32_t incVal = 1; /* +1 for big endian, -1 for little endian */
|
|
char *p = (char *)&val; /* point to current byte to output in the ptr val */
|
|
|
|
#if !U_IS_BIG_ENDIAN
|
|
/* Little Endian. Move p to most significant end of the value */
|
|
incVal = -1;
|
|
p += sizeof(void *) - 1;
|
|
#endif
|
|
|
|
/* Loop through the bytes of the ptr as it sits in memory, from
|
|
* most significant to least significant end */
|
|
for (i=0; i<sizeof(void *); i++) {
|
|
outputHexBytes(*p, 2, outBuf, outIx, capacity);
|
|
p += incVal;
|
|
}
|
|
}
|
|
|
|
static void outputString(const char *s, char *outBuf, int32_t *outIx, int32_t capacity, int32_t indent) {
|
|
int32_t i = 0;
|
|
char c;
|
|
if (s==NULL) {
|
|
s = "*NULL*";
|
|
}
|
|
do {
|
|
c = s[i++];
|
|
outputChar(c, outBuf, outIx, capacity, indent);
|
|
} while (c != 0);
|
|
}
|
|
|
|
|
|
|
|
static void outputUString(const UChar *s, int32_t len,
|
|
char *outBuf, int32_t *outIx, int32_t capacity, int32_t indent) {
|
|
int32_t i = 0;
|
|
UChar c;
|
|
if (s==NULL) {
|
|
outputString(NULL, outBuf, outIx, capacity, indent);
|
|
return;
|
|
}
|
|
|
|
for (i=0; i<len || len==-1; i++) {
|
|
c = s[i];
|
|
outputHexBytes(c, 4, outBuf, outIx, capacity);
|
|
outputChar(' ', outBuf, outIx, capacity, indent);
|
|
if (len == -1 && c==0) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
U_CAPI int32_t U_EXPORT2
|
|
utrace_vformat(char *outBuf, int32_t capacity, int32_t indent, const char *fmt, va_list args) {
|
|
int32_t outIx = 0;
|
|
int32_t fmtIx = 0;
|
|
char fmtC;
|
|
char c;
|
|
int32_t intArg;
|
|
int64_t longArg = 0;
|
|
char *ptrArg;
|
|
|
|
/* Loop runs once for each character in the format string.
|
|
*/
|
|
for (;;) {
|
|
fmtC = fmt[fmtIx++];
|
|
if (fmtC != '%') {
|
|
/* Literal character, not part of a %sequence. Just copy it to the output. */
|
|
outputChar(fmtC, outBuf, &outIx, capacity, indent);
|
|
if (fmtC == 0) {
|
|
/* We hit the null that terminates the format string.
|
|
* This is the normal (and only) exit from the loop that
|
|
* interprets the format
|
|
*/
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
/* We encountered a '%'. Pick up the following format char */
|
|
fmtC = fmt[fmtIx++];
|
|
|
|
switch (fmtC) {
|
|
case 'c':
|
|
/* single 8 bit char */
|
|
c = (char)va_arg(args, int32_t);
|
|
outputChar(c, outBuf, &outIx, capacity, indent);
|
|
break;
|
|
|
|
case 's':
|
|
/* char * string, null terminated. */
|
|
ptrArg = va_arg(args, char *);
|
|
outputString((const char *)ptrArg, outBuf, &outIx, capacity, indent);
|
|
break;
|
|
|
|
case 'S':
|
|
/* UChar * string, with length, len==-1 for null terminated. */
|
|
ptrArg = va_arg(args, char *); /* Ptr */
|
|
intArg =(int32_t)va_arg(args, int32_t); /* Length */
|
|
outputUString((const UChar *)ptrArg, intArg, outBuf, &outIx, capacity, indent);
|
|
break;
|
|
|
|
case 'b':
|
|
/* 8 bit int */
|
|
intArg = va_arg(args, int);
|
|
outputHexBytes(intArg, 2, outBuf, &outIx, capacity);
|
|
break;
|
|
|
|
case 'h':
|
|
/* 16 bit int */
|
|
intArg = va_arg(args, int);
|
|
outputHexBytes(intArg, 4, outBuf, &outIx, capacity);
|
|
break;
|
|
|
|
case 'd':
|
|
/* 32 bit int */
|
|
intArg = va_arg(args, int);
|
|
outputHexBytes(intArg, 8, outBuf, &outIx, capacity);
|
|
break;
|
|
|
|
case 'l':
|
|
/* 64 bit long */
|
|
longArg = va_arg(args, int64_t);
|
|
outputHexBytes(longArg, 16, outBuf, &outIx, capacity);
|
|
break;
|
|
|
|
case 'p':
|
|
/* Pointers. */
|
|
ptrArg = va_arg(args, char *);
|
|
outputPtrBytes(ptrArg, outBuf, &outIx, capacity);
|
|
break;
|
|
|
|
case 0:
|
|
/* Single '%' at end of fmt string. Output as literal '%'.
|
|
* Back up index into format string so that the terminating null will be
|
|
* re-fetched in the outer loop, causing it to terminate.
|
|
*/
|
|
outputChar('%', outBuf, &outIx, capacity, indent);
|
|
fmtIx--;
|
|
break;
|
|
|
|
case 'v':
|
|
{
|
|
/* Vector of values, e.g. %vh */
|
|
char vectorType;
|
|
int32_t vectorLen;
|
|
const char *i8Ptr;
|
|
int16_t *i16Ptr;
|
|
int32_t *i32Ptr;
|
|
int64_t *i64Ptr;
|
|
void **ptrPtr;
|
|
int32_t charsToOutput = 0;
|
|
int32_t i;
|
|
|
|
vectorType = fmt[fmtIx]; /* b, h, d, l, p, etc. */
|
|
if (vectorType != 0) {
|
|
fmtIx++;
|
|
}
|
|
i8Ptr = (const char *)va_arg(args, void*);
|
|
i16Ptr = (int16_t *)i8Ptr;
|
|
i32Ptr = (int32_t *)i8Ptr;
|
|
i64Ptr = (int64_t *)i8Ptr;
|
|
ptrPtr = (void **)i8Ptr;
|
|
vectorLen =(int32_t)va_arg(args, int32_t);
|
|
if (ptrPtr == NULL) {
|
|
outputString("*NULL* ", outBuf, &outIx, capacity, indent);
|
|
} else {
|
|
for (i=0; i<vectorLen || vectorLen==-1; i++) {
|
|
switch (vectorType) {
|
|
case 'b':
|
|
charsToOutput = 2;
|
|
longArg = *i8Ptr++;
|
|
break;
|
|
case 'h':
|
|
charsToOutput = 4;
|
|
longArg = *i16Ptr++;
|
|
break;
|
|
case 'd':
|
|
charsToOutput = 8;
|
|
longArg = *i32Ptr++;
|
|
break;
|
|
case 'l':
|
|
charsToOutput = 16;
|
|
longArg = *i64Ptr++;
|
|
break;
|
|
case 'p':
|
|
charsToOutput = 0;
|
|
outputPtrBytes(*ptrPtr, outBuf, &outIx, capacity);
|
|
longArg = *ptrPtr==NULL? 0: 1; /* test for null terminated array. */
|
|
ptrPtr++;
|
|
break;
|
|
case 'c':
|
|
charsToOutput = 0;
|
|
outputChar(*i8Ptr, outBuf, &outIx, capacity, indent);
|
|
longArg = *i8Ptr; /* for test for null terminated array. */
|
|
i8Ptr++;
|
|
break;
|
|
case 's':
|
|
charsToOutput = 0;
|
|
outputString((const char *)*ptrPtr, outBuf, &outIx, capacity, indent);
|
|
outputChar('\n', outBuf, &outIx, capacity, indent);
|
|
longArg = *ptrPtr==NULL? 0: 1; /* for test for null term. array. */
|
|
ptrPtr++;
|
|
break;
|
|
|
|
case 'S':
|
|
charsToOutput = 0;
|
|
outputUString((const UChar *)*ptrPtr, -1, outBuf, &outIx, capacity, indent);
|
|
outputChar('\n', outBuf, &outIx, capacity, indent);
|
|
longArg = *ptrPtr==NULL? 0: 1; /* for test for null term. array. */
|
|
ptrPtr++;
|
|
break;
|
|
|
|
|
|
}
|
|
if (charsToOutput > 0) {
|
|
outputHexBytes(longArg, charsToOutput, outBuf, &outIx, capacity);
|
|
outputChar(' ', outBuf, &outIx, capacity, indent);
|
|
}
|
|
if (vectorLen == -1 && longArg == 0) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
outputChar('[', outBuf, &outIx, capacity, indent);
|
|
outputHexBytes(vectorLen, 8, outBuf, &outIx, capacity);
|
|
outputChar(']', outBuf, &outIx, capacity, indent);
|
|
}
|
|
break;
|
|
|
|
|
|
default:
|
|
/* %. in format string, where . is some character not in the set
|
|
* of recognized format chars. Just output it as if % wasn't there.
|
|
* (Covers "%%" outputting a single '%')
|
|
*/
|
|
outputChar(fmtC, outBuf, &outIx, capacity, indent);
|
|
}
|
|
}
|
|
outputChar(0, outBuf, &outIx, capacity, indent); /* Make sure that output is null terminated */
|
|
return outIx + 1; /* outIx + 1 because outIx does not increment when outputting final null. */
|
|
}
|
|
|
|
|
|
|
|
|
|
U_CAPI int32_t U_EXPORT2
|
|
utrace_format(char *outBuf, int32_t capacity,
|
|
int32_t indent, const char *fmt, ...) {
|
|
int32_t retVal;
|
|
va_list args;
|
|
va_start(args, fmt );
|
|
retVal = utrace_vformat(outBuf, capacity, indent, fmt, args);
|
|
va_end(args);
|
|
return retVal;
|
|
}
|
|
|
|
|
|
U_CAPI void U_EXPORT2
|
|
utrace_setFunctions(const void *context,
|
|
UTraceEntry *e, UTraceExit *x, UTraceData *d) {
|
|
pTraceEntryFunc = e;
|
|
pTraceExitFunc = x;
|
|
pTraceDataFunc = d;
|
|
gTraceContext = context;
|
|
}
|
|
|
|
|
|
U_CAPI void U_EXPORT2
|
|
utrace_getFunctions(const void **context,
|
|
UTraceEntry **e, UTraceExit **x, UTraceData **d) {
|
|
*e = pTraceEntryFunc;
|
|
*x = pTraceExitFunc;
|
|
*d = pTraceDataFunc;
|
|
*context = gTraceContext;
|
|
}
|
|
|
|
U_CAPI void U_EXPORT2
|
|
utrace_setLevel(int32_t level) {
|
|
if (level < UTRACE_OFF) {
|
|
level = UTRACE_OFF;
|
|
}
|
|
if (level > UTRACE_VERBOSE) {
|
|
level = UTRACE_VERBOSE;
|
|
}
|
|
utrace_level = level;
|
|
}
|
|
|
|
U_CAPI int32_t U_EXPORT2
|
|
utrace_getLevel() {
|
|
return utrace_level;
|
|
}
|
|
|
|
|
|
U_CFUNC UBool
|
|
utrace_cleanup() {
|
|
pTraceEntryFunc = NULL;
|
|
pTraceExitFunc = NULL;
|
|
pTraceDataFunc = NULL;
|
|
utrace_level = UTRACE_OFF;
|
|
gTraceContext = NULL;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static const char * const
|
|
trFnName[] = {
|
|
"u_init",
|
|
"u_cleanup",
|
|
NULL
|
|
};
|
|
|
|
|
|
static const char * const
|
|
trConvNames[] = {
|
|
"ucnv_open",
|
|
"ucnv_openPackage",
|
|
"ucnv_openAlgorithmic",
|
|
"ucnv_clone",
|
|
"ucnv_close",
|
|
"ucnv_flushCache",
|
|
"ucnv_load",
|
|
"ucnv_unload",
|
|
NULL
|
|
};
|
|
|
|
|
|
static const char * const
|
|
trCollNames[] = {
|
|
"ucol_open",
|
|
"ucol_close",
|
|
"ucol_strcoll",
|
|
"ucol_getSortKey",
|
|
"ucol_getLocale",
|
|
"ucol_nextSortKeyPart",
|
|
"ucol_strcollIter",
|
|
"ucol_openFromShortString",
|
|
"ucol_strcollUTF8",
|
|
NULL
|
|
};
|
|
|
|
|
|
static const char* const
|
|
trResDataNames[] = {
|
|
"resc",
|
|
"bundle-open",
|
|
"file-open",
|
|
"res-open",
|
|
NULL
|
|
};
|
|
|
|
|
|
U_CAPI const char * U_EXPORT2
|
|
utrace_functionName(int32_t fnNumber) {
|
|
if(UTRACE_FUNCTION_START <= fnNumber && fnNumber < UTRACE_FUNCTION_LIMIT) {
|
|
return trFnName[fnNumber];
|
|
} else if(UTRACE_CONVERSION_START <= fnNumber && fnNumber < UTRACE_CONVERSION_LIMIT) {
|
|
return trConvNames[fnNumber - UTRACE_CONVERSION_START];
|
|
} else if(UTRACE_COLLATION_START <= fnNumber && fnNumber < UTRACE_COLLATION_LIMIT){
|
|
return trCollNames[fnNumber - UTRACE_COLLATION_START];
|
|
} else if(UTRACE_UDATA_START <= fnNumber && fnNumber < UTRACE_RES_DATA_LIMIT){
|
|
return trResDataNames[fnNumber - UTRACE_UDATA_START];
|
|
} else {
|
|
return "[BOGUS Trace Function Number]";
|
|
}
|
|
}
|
|
|