globaloc.cpp File Reference

#include <signal.h>
#include "allheaders.h"
#include "errcode.h"
#include "tprintf.h"

Go to the source code of this file.

Functions
void	SavePixForCrash (int resolution, Pix *pix)
void	signal_exit (int signal_code)
void	err_exit ()
void	set_global_loc_code (int loc_code)
void	set_global_subloc_code (int loc_code)
void	set_global_subsubloc_code (int loc_code)

Variables
const int	kMaxNumThreadPixes = 32768
Pix *	global_crash_pixes [kMaxNumThreadPixes]

Function Documentation

void err_exit

(

)

Definition at line 74 of file globaloc.cpp.

                {
  ASSERT_HOST("Fatal error encountered!" == NULL);
}

void SavePixForCrash	(	int	resolution,
		Pix *	pix
	)

Definition at line 34 of file globaloc.cpp.

                                               {
#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 != NULL) {
    Pix* clone = pixClone(pix);
    pixSetXRes(clone, resolution);
    pixSetYRes(clone, resolution);
    global_crash_pixes[thread_id] = clone;
  }
#endif
}

void set_global_loc_code

(

int

loc_code

)

Definition at line 79 of file globaloc.cpp.

                                       {
  // global_loc_code = loc_code;

}

void set_global_subloc_code

(

int

loc_code

)

Definition at line 85 of file globaloc.cpp.

                                          {
  // global_subloc_code = loc_code;

}

void set_global_subsubloc_code

(

int

loc_code

)

Definition at line 91 of file globaloc.cpp.

                                             {
  // global_subsubloc_code = loc_code;

}

void signal_exit

(

int

signal_code

)

Definition at line 52 of file globaloc.cpp.

                                  {
  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] != NULL) {
    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
}

Variable Documentation

Pix* global_crash_pixes[kMaxNumThreadPixes]

Definition at line 32 of file globaloc.cpp.

const int kMaxNumThreadPixes = 32768

Definition at line 30 of file globaloc.cpp.