2020-08-11 17:10:23 +08:00
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// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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*******************************************************************************
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* Copyright (C) 2003-2014, International Business Machines
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* Corporation and others. All Rights Reserved.
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*******************************************************************************
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* file name: utrace.c
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* encoding: UTF-8
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* tab size: 8 (not used)
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* indentation:4
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*/
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#include "unicode/utrace.h"
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#include "utracimp.h"
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#include "cstring.h"
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#include "uassert.h"
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#include "ucln_cmn.h"
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2023-05-23 08:05:01 +08:00
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static UTraceEntry *pTraceEntryFunc = nullptr;
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static UTraceExit *pTraceExitFunc = nullptr;
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static UTraceData *pTraceDataFunc = nullptr;
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static const void *gTraceContext = nullptr;
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2020-08-11 17:10:23 +08:00
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/**
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* \var utrace_level
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* Trace level variable. Negative for "off".
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*/
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static int32_t
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utrace_level = UTRACE_ERROR;
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U_CAPI void U_EXPORT2
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utrace_entry(int32_t fnNumber) {
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if (pTraceEntryFunc != nullptr) {
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2020-08-11 17:10:23 +08:00
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(*pTraceEntryFunc)(gTraceContext, fnNumber);
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}
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}
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static const char gExitFmt[] = "Returns.";
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static const char gExitFmtValue[] = "Returns %d.";
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static const char gExitFmtStatus[] = "Returns. Status = %d.";
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static const char gExitFmtValueStatus[] = "Returns %d. Status = %d.";
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static const char gExitFmtPtrStatus[] = "Returns %d. Status = %p.";
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U_CAPI void U_EXPORT2
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utrace_exit(int32_t fnNumber, int32_t returnType, ...) {
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if (pTraceExitFunc != nullptr) {
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2020-08-11 17:10:23 +08:00
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va_list args;
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const char *fmt;
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switch (returnType) {
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case 0:
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fmt = gExitFmt;
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break;
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case UTRACE_EXITV_I32:
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fmt = gExitFmtValue;
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break;
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case UTRACE_EXITV_STATUS:
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fmt = gExitFmtStatus;
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break;
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case UTRACE_EXITV_I32 | UTRACE_EXITV_STATUS:
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fmt = gExitFmtValueStatus;
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break;
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case UTRACE_EXITV_PTR | UTRACE_EXITV_STATUS:
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fmt = gExitFmtPtrStatus;
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break;
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default:
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UPRV_UNREACHABLE_EXIT;
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}
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va_start(args, returnType);
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(*pTraceExitFunc)(gTraceContext, fnNumber, fmt, args);
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va_end(args);
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}
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}
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U_CAPI void U_EXPORT2
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utrace_data(int32_t fnNumber, int32_t level, const char *fmt, ...) {
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if (pTraceDataFunc != nullptr) {
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va_list args;
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va_start(args, fmt );
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(*pTraceDataFunc)(gTraceContext, fnNumber, level, fmt, args);
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va_end(args);
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}
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}
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static void outputChar(char c, char *outBuf, int32_t *outIx, int32_t capacity, int32_t indent) {
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int32_t i;
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/* Check whether a start of line indenting is needed. Three cases:
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* 1. At the start of the first line (output index == 0).
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* 2. At the start of subsequent lines (preceding char in buffer == '\n')
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* 3. When preflighting buffer len (buffer capacity is exceeded), when
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* a \n is output. Ideally we wouldn't do the indent until the following char
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* is received, but that won't work because there's no place to remember that
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* the preceding char was \n. Meaning that we may overstimate the
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* buffer size needed. No harm done.
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*/
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if (*outIx==0 || /* case 1. */
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(c!='\n' && c!=0 && *outIx < capacity && outBuf[(*outIx)-1]=='\n') || /* case 2. */
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(c=='\n' && *outIx>=capacity)) /* case 3 */
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{
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/* At the start of a line. Indent. */
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for(i=0; i<indent; i++) {
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if (*outIx < capacity) {
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outBuf[*outIx] = ' ';
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}
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(*outIx)++;
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}
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}
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if (*outIx < capacity) {
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outBuf[*outIx] = c;
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}
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if (c != 0) {
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/* NULs only appear as end-of-string terminators. Move them to the output
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* buffer, but do not update the length of the buffer, so that any
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* following output will overwrite the NUL. */
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(*outIx)++;
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}
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}
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static void outputHexBytes(int64_t val, int32_t charsToOutput,
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char *outBuf, int32_t *outIx, int32_t capacity) {
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static const char gHexChars[] = "0123456789abcdef";
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int32_t shiftCount;
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for (shiftCount=(charsToOutput-1)*4; shiftCount >= 0; shiftCount-=4) {
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char c = gHexChars[(val >> shiftCount) & 0xf];
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outputChar(c, outBuf, outIx, capacity, 0);
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}
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}
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/* Output a pointer value in hex. Work with any size of pointer */
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static void outputPtrBytes(void *val, char *outBuf, int32_t *outIx, int32_t capacity) {
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uint32_t i;
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int32_t incVal = 1; /* +1 for big endian, -1 for little endian */
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char *p = (char *)&val; /* point to current byte to output in the ptr val */
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#if !U_IS_BIG_ENDIAN
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/* Little Endian. Move p to most significant end of the value */
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incVal = -1;
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p += sizeof(void *) - 1;
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#endif
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/* Loop through the bytes of the ptr as it sits in memory, from
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* most significant to least significant end */
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for (i=0; i<sizeof(void *); i++) {
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outputHexBytes(*p, 2, outBuf, outIx, capacity);
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p += incVal;
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}
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}
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static void outputString(const char *s, char *outBuf, int32_t *outIx, int32_t capacity, int32_t indent) {
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int32_t i = 0;
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char c;
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if (s==nullptr) {
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s = "*NULL*";
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}
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do {
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c = s[i++];
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outputChar(c, outBuf, outIx, capacity, indent);
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} while (c != 0);
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}
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static void outputUString(const char16_t *s, int32_t len,
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char *outBuf, int32_t *outIx, int32_t capacity, int32_t indent) {
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int32_t i = 0;
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char16_t c;
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if (s==nullptr) {
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outputString(nullptr, outBuf, outIx, capacity, indent);
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2020-08-11 17:10:23 +08:00
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return;
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}
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for (i=0; i<len || len==-1; i++) {
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c = s[i];
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outputHexBytes(c, 4, outBuf, outIx, capacity);
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outputChar(' ', outBuf, outIx, capacity, indent);
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if (len == -1 && c==0) {
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break;
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}
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}
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}
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U_CAPI int32_t U_EXPORT2
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utrace_vformat(char *outBuf, int32_t capacity, int32_t indent, const char *fmt, va_list args) {
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int32_t outIx = 0;
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int32_t fmtIx = 0;
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char fmtC;
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char c;
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int32_t intArg;
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int64_t longArg = 0;
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char *ptrArg;
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/* Loop runs once for each character in the format string.
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*/
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for (;;) {
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fmtC = fmt[fmtIx++];
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if (fmtC != '%') {
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/* Literal character, not part of a %sequence. Just copy it to the output. */
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outputChar(fmtC, outBuf, &outIx, capacity, indent);
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if (fmtC == 0) {
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/* We hit the NUL that terminates the format string.
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* This is the normal (and only) exit from the loop that
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* interprets the format
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*/
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break;
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}
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continue;
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}
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/* We encountered a '%'. Pick up the following format char */
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fmtC = fmt[fmtIx++];
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switch (fmtC) {
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case 'c':
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/* single 8 bit char */
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c = (char)va_arg(args, int32_t);
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outputChar(c, outBuf, &outIx, capacity, indent);
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break;
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case 's':
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/* char * string, NUL terminated. */
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ptrArg = va_arg(args, char *);
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outputString((const char *)ptrArg, outBuf, &outIx, capacity, indent);
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break;
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case 'S':
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/* char16_t * string, with length, len==-1 for NUL terminated. */
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ptrArg = va_arg(args, char *); /* Ptr */
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intArg =(int32_t)va_arg(args, int32_t); /* Length */
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outputUString((const char16_t *)ptrArg, intArg, outBuf, &outIx, capacity, indent);
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2020-08-11 17:10:23 +08:00
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break;
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case 'b':
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/* 8 bit int */
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intArg = va_arg(args, int);
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outputHexBytes(intArg, 2, outBuf, &outIx, capacity);
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break;
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case 'h':
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/* 16 bit int */
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intArg = va_arg(args, int);
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outputHexBytes(intArg, 4, outBuf, &outIx, capacity);
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break;
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case 'd':
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/* 32 bit int */
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intArg = va_arg(args, int);
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outputHexBytes(intArg, 8, outBuf, &outIx, capacity);
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break;
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case 'l':
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/* 64 bit long */
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longArg = va_arg(args, int64_t);
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outputHexBytes(longArg, 16, outBuf, &outIx, capacity);
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break;
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case 'p':
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/* Pointers. */
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ptrArg = va_arg(args, char *);
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outputPtrBytes(ptrArg, outBuf, &outIx, capacity);
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break;
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case 0:
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/* Single '%' at end of fmt string. Output as literal '%'.
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* Back up index into format string so that the terminating NUL will be
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* re-fetched in the outer loop, causing it to terminate.
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*/
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outputChar('%', outBuf, &outIx, capacity, indent);
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fmtIx--;
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break;
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case 'v':
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{
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/* Vector of values, e.g. %vh */
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char vectorType;
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int32_t vectorLen;
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const char *i8Ptr;
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int16_t *i16Ptr;
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int32_t *i32Ptr;
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int64_t *i64Ptr;
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void **ptrPtr;
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int32_t charsToOutput = 0;
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int32_t i;
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vectorType = fmt[fmtIx]; /* b, h, d, l, p, etc. */
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if (vectorType != 0) {
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fmtIx++;
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}
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i8Ptr = (const char *)va_arg(args, void*);
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i16Ptr = (int16_t *)i8Ptr;
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i32Ptr = (int32_t *)i8Ptr;
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i64Ptr = (int64_t *)i8Ptr;
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ptrPtr = (void **)i8Ptr;
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vectorLen =(int32_t)va_arg(args, int32_t);
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if (ptrPtr == nullptr) {
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2020-08-11 17:10:23 +08:00
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outputString("*NULL* ", outBuf, &outIx, capacity, indent);
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} else {
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for (i=0; i<vectorLen || vectorLen==-1; i++) {
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switch (vectorType) {
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case 'b':
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charsToOutput = 2;
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longArg = *i8Ptr++;
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break;
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case 'h':
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charsToOutput = 4;
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longArg = *i16Ptr++;
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break;
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case 'd':
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charsToOutput = 8;
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longArg = *i32Ptr++;
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break;
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case 'l':
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charsToOutput = 16;
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longArg = *i64Ptr++;
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break;
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case 'p':
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charsToOutput = 0;
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outputPtrBytes(*ptrPtr, outBuf, &outIx, capacity);
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longArg = *ptrPtr==nullptr? 0: 1; /* test for nullptr terminated array. */
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ptrPtr++;
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break;
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case 'c':
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charsToOutput = 0;
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outputChar(*i8Ptr, outBuf, &outIx, capacity, indent);
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2023-05-23 08:05:01 +08:00
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longArg = *i8Ptr; /* for test for nullptr terminated array. */
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2020-08-11 17:10:23 +08:00
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i8Ptr++;
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break;
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case 's':
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charsToOutput = 0;
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outputString((const char *)*ptrPtr, outBuf, &outIx, capacity, indent);
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outputChar('\n', outBuf, &outIx, capacity, indent);
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2023-05-23 08:05:01 +08:00
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longArg = *ptrPtr==nullptr? 0: 1; /* for test for nullptr term. array. */
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2020-08-11 17:10:23 +08:00
|
|
|
ptrPtr++;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 'S':
|
|
|
|
charsToOutput = 0;
|
2023-05-23 08:05:01 +08:00
|
|
|
outputUString((const char16_t *)*ptrPtr, -1, outBuf, &outIx, capacity, indent);
|
2020-08-11 17:10:23 +08:00
|
|
|
outputChar('\n', outBuf, &outIx, capacity, indent);
|
2023-05-23 08:05:01 +08:00
|
|
|
longArg = *ptrPtr==nullptr? 0: 1; /* for test for nullptr term. array. */
|
2020-08-11 17:10:23 +08:00
|
|
|
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.
|
2021-10-28 14:15:28 +08:00
|
|
|
* (Covers "%%" outputting a single '%')
|
2020-08-11 17:10:23 +08:00
|
|
|
*/
|
|
|
|
outputChar(fmtC, outBuf, &outIx, capacity, indent);
|
|
|
|
}
|
|
|
|
}
|
2023-05-23 08:05:01 +08:00
|
|
|
outputChar(0, outBuf, &outIx, capacity, indent); /* Make sure that output is NUL terminated */
|
|
|
|
return outIx + 1; /* outIx + 1 because outIx does not increment when outputting final NUL. */
|
2020-08-11 17:10:23 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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() {
|
2023-05-23 08:05:01 +08:00
|
|
|
pTraceEntryFunc = nullptr;
|
|
|
|
pTraceExitFunc = nullptr;
|
|
|
|
pTraceDataFunc = nullptr;
|
2020-08-11 17:10:23 +08:00
|
|
|
utrace_level = UTRACE_OFF;
|
2023-05-23 08:05:01 +08:00
|
|
|
gTraceContext = nullptr;
|
2022-10-28 14:11:55 +08:00
|
|
|
return true;
|
2020-08-11 17:10:23 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const char * const
|
|
|
|
trFnName[] = {
|
|
|
|
"u_init",
|
|
|
|
"u_cleanup",
|
2023-05-23 08:05:01 +08:00
|
|
|
nullptr
|
2020-08-11 17:10:23 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static const char * const
|
|
|
|
trConvNames[] = {
|
|
|
|
"ucnv_open",
|
|
|
|
"ucnv_openPackage",
|
|
|
|
"ucnv_openAlgorithmic",
|
|
|
|
"ucnv_clone",
|
|
|
|
"ucnv_close",
|
|
|
|
"ucnv_flushCache",
|
|
|
|
"ucnv_load",
|
|
|
|
"ucnv_unload",
|
2023-05-23 08:05:01 +08:00
|
|
|
nullptr
|
2020-08-11 17:10:23 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static const char * const
|
|
|
|
trCollNames[] = {
|
|
|
|
"ucol_open",
|
|
|
|
"ucol_close",
|
|
|
|
"ucol_strcoll",
|
|
|
|
"ucol_getSortKey",
|
|
|
|
"ucol_getLocale",
|
|
|
|
"ucol_nextSortKeyPart",
|
|
|
|
"ucol_strcollIter",
|
|
|
|
"ucol_openFromShortString",
|
|
|
|
"ucol_strcollUTF8",
|
2023-05-23 08:05:01 +08:00
|
|
|
nullptr
|
2020-08-11 17:10:23 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static const char* const
|
|
|
|
trResDataNames[] = {
|
|
|
|
"resc",
|
|
|
|
"bundle-open",
|
|
|
|
"file-open",
|
|
|
|
"res-open",
|
2023-05-23 08:05:01 +08:00
|
|
|
nullptr
|
2020-08-11 17:10:23 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
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]";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|