mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-30 20:38:29 +08:00
95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
/**********************************************************************
|
|
* File: errcode.cpp (Formerly error.c)
|
|
* Description: Generic error handler function
|
|
* Author: Ray Smith
|
|
* Created: Tue May 1 16:28:39 BST 1990
|
|
*
|
|
* (C) Copyright 1989, Hewlett-Packard Ltd.
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
|
** you may not use this file except in compliance with the License.
|
|
** You may obtain a copy of the License at
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
|
** Unless required by applicable law or agreed to in writing, software
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
** See the License for the specific language governing permissions and
|
|
** limitations under the License.
|
|
*
|
|
**********************************************************************/
|
|
|
|
#include <signal.h>
|
|
#ifdef __linux__
|
|
#include <sys/syscall.h> // For SYS_gettid.
|
|
#include <unistd.h> // For syscall itself.
|
|
#endif
|
|
#include "allheaders.h"
|
|
#include "errcode.h"
|
|
#include "tprintf.h"
|
|
|
|
// Size of thread-id array of pixes to keep in case of crash.
|
|
const int kMaxNumThreadPixes = 32768;
|
|
|
|
Pix* global_crash_pixes[kMaxNumThreadPixes];
|
|
|
|
void SavePixForCrash(int resolution, Pix* pix) {
|
|
#ifdef __linux__
|
|
#ifndef ANDROID
|
|
int thread_id = syscall(SYS_gettid) % kMaxNumThreadPixes;
|
|
#else
|
|
int thread_id = gettid() % kMaxNumThreadPixes;
|
|
#endif
|
|
pixDestroy(&global_crash_pixes[thread_id]);
|
|
if (pix != nullptr) {
|
|
Pix* clone = pixClone(pix);
|
|
pixSetXRes(clone, resolution);
|
|
pixSetYRes(clone, resolution);
|
|
global_crash_pixes[thread_id] = clone;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// CALL ONLY from a signal handler! Writes a crash image to stderr.
|
|
void signal_exit(int signal_code) {
|
|
tprintf("Received signal %d!\n", signal_code);
|
|
#ifdef __linux__
|
|
#ifndef ANDROID
|
|
int thread_id = syscall(SYS_gettid) % kMaxNumThreadPixes;
|
|
#else
|
|
int thread_id = gettid() % kMaxNumThreadPixes;
|
|
#endif
|
|
if (global_crash_pixes[thread_id] != nullptr) {
|
|
fprintf(stderr, "Crash caused by image with resolution %d\n",
|
|
pixGetYRes(global_crash_pixes[thread_id]));
|
|
fprintf(stderr, "<Cut here>\n");
|
|
pixWriteStreamPng(stderr, global_crash_pixes[thread_id], 0.0);
|
|
fprintf(stderr, "\n<End cut>\n");
|
|
}
|
|
// Raise an uncaught signal, so as to get a useful stack trace.
|
|
raise(SIGILL);
|
|
#else
|
|
abort();
|
|
#endif
|
|
}
|
|
|
|
void err_exit() {
|
|
ASSERT_HOST("Fatal error encountered!" == nullptr);
|
|
}
|
|
|
|
|
|
void set_global_loc_code(int loc_code) {
|
|
// global_loc_code = loc_code;
|
|
|
|
}
|
|
|
|
|
|
void set_global_subloc_code(int loc_code) {
|
|
// global_subloc_code = loc_code;
|
|
|
|
}
|
|
|
|
|
|
void set_global_subsubloc_code(int loc_code) {
|
|
// global_subsubloc_code = loc_code;
|
|
|
|
}
|