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https://github.com/tesseract-ocr/tesseract.git
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72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
/**********************************************************************
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* File: tprintf.cpp
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* Description: Trace version of printf - portable between UX and NT
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* Author: Phil Cheatle
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* Created: Wed Jun 28 15:01:15 BST 1995
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*
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* (C) Copyright 1995, Hewlett-Packard Ltd.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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**********************************************************************/
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// Include automatically generated configuration file if running autoconf.
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#ifdef HAVE_CONFIG_H
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#include "config_auto.h"
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#endif
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#include <stdio.h>
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#include <stdarg.h>
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#include "ccutil.h"
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#include "params.h"
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#include "strngs.h"
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#include "tprintf.h"
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#define MAX_MSG_LEN 65536
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#define EXTERN
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// Since tprintf is protected by a mutex, these parameters can remain global.
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DLLSYM STRING_VAR(debug_file, "", "File to send tprintf output to");
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DLLSYM void
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tprintf_internal( // Trace printf
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const char *format, ... // Message
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) {
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tesseract::tprintfMutex.Lock();
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va_list args; // variable args
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static FILE *debugfp = NULL; // debug file
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// debug window
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inT32 offset = 0; // into message
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static char msg[MAX_MSG_LEN + 1];
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va_start(args, format); // variable list
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// Format into msg
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#ifdef _WIN32
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offset += _vsnprintf(msg + offset, MAX_MSG_LEN - offset, format, args);
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if (strcmp(debug_file.string(), "/dev/null") == 0)
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debug_file.set_value("nul");
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#else
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offset += vsnprintf(msg + offset, MAX_MSG_LEN - offset, format, args);
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#endif
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va_end(args);
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if (debugfp == NULL && strlen(debug_file.string()) > 0) {
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debugfp = fopen(debug_file.string(), "wb");
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} else if (debugfp != NULL && strlen(debug_file.string()) == 0) {
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fclose(debugfp);
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debugfp = NULL;
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}
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if (debugfp != NULL)
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fprintf(debugfp, "%s", msg);
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else
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fprintf(stderr, "%s", msg);
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tesseract::tprintfMutex.Unlock();
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}
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