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Implemented last-chance recovery that saves the current and spare page. (issue 97)

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Tested OK on Windows when crashing Contour (issue 119)
Doesn't handle frozen states (when killed in task manager), I'll have to look further.


git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@628 416bcca6-2ee7-4201-b75f-2eb2f807beb1
This commit is contained in:
Yves Rizoud
2009-02-13 01:12:52 +00:00
parent 546dc6011f
commit d704c4f425
6 changed files with 164 additions and 14 deletions
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59
init.c
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@@ -22,6 +22,11 @@
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
// Signal handler: I activate it for the two platforms who certainly
// support them. Feel free to check with others.
#if defined(__WIN32__) || defined(__linux__)
#define GRAFX2_CATCHES_SIGNALS
#endif
#include <fcntl.h>
#include <stdio.h>
#include <sys/types.h>
@@ -36,10 +41,12 @@
#if defined(__WIN32__)
#include <windows.h> // GetLogicalDrives(), GetDriveType(), DRIVE_*
#endif
#if defined(__amigaos4__) || defined(__AROS__) || defined(__MORPHOS__)
#include <proto/exec.h>
#include <proto/dos.h>
#include <proto/exec.h>
#include <proto/dos.h>
#endif
#ifdef GRAFX2_CATCHES_SIGNALS
#include <signal.h>
#endif
#include "const.h"
@@ -60,6 +67,7 @@
#include "windows.h"
#include "sdlscreen.h"
#include "mountlist.h" // read_file_system_list
#include "loadsave.h" // Image_emergency_backup
// Ajouter un lecteur à la liste de lecteurs
void Ajouter_lecteur(char Lettre, byte Type, char *Chemin)
@@ -72,7 +80,6 @@ void Ajouter_lecteur(char Lettre, byte Type, char *Chemin)
Nb_drives++;
}
// Rechercher la liste et le type des lecteurs de la machine
#if defined(__amigaos4__) || defined(__AROS__) || defined(__MORPHOS__)
@@ -2364,3 +2371,47 @@ void Config_par_defaut(void)
Snap_Decalage_X=Snap_Decalage_Y=0;
}
#ifdef GRAFX2_CATCHES_SIGNALS
// Memorize the signal handlers of SDL
__p_sig_fn_t Handler_TERM=SIG_DFL;
__p_sig_fn_t Handler_INT=SIG_DFL;
__p_sig_fn_t Handler_ABRT=SIG_DFL;
__p_sig_fn_t Handler_SEGV=SIG_DFL;
__p_sig_fn_t Handler_FPE=SIG_DFL;
void sig_handler(int sig)
{
// Restore default behaviour
signal(SIGTERM, Handler_TERM);
signal(SIGINT, Handler_INT);
signal(SIGABRT, Handler_ABRT);
signal(SIGSEGV, Handler_SEGV);
signal(SIGFPE, Handler_FPE);
switch(sig)
{
case SIGTERM:
case SIGINT:
case SIGABRT:
case SIGSEGV:
Image_emergency_backup();
default:
break;
}
}
#endif
void Initialiser_sighandler(void)
{
#ifdef GRAFX2_CATCHES_SIGNALS
Handler_TERM=signal(SIGTERM,sig_handler);
Handler_INT =signal(SIGINT,sig_handler);
Handler_ABRT=signal(SIGABRT,sig_handler);
Handler_SEGV=signal(SIGSEGV,sig_handler);
Handler_FPE =signal(SIGFPE,sig_handler);
#endif
}