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Merge branch 'fixsignalhandler-resurrection' into 'awful-mix' 

2.2 signal handler

See merge request SinnamonLat/Kart-Public!11
This commit is contained in:
wolfs 2020-04-20 22:42:59 -04:00
parent 0150200949 2a016332c4
commit f9dad05242
5 changed files with 130 additions and 18 deletions
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3
src/d_main.c
View File

@ -616,9 +616,6 @@ void D_SRB2Loop(void)
// Pushing of + parameters is now done back in D_SRB2Main, not here.
CONS_Printf("I_StartupKeyboard()...\n");
I_StartupKeyboard();
#ifdef _WINDOWS
CONS_Printf("I_StartupMouse()...\n");
I_DoStartupMouse();

1
src/doomdef.h
View File

@ -138,6 +138,7 @@
#ifdef LOGMESSAGES
extern FILE *logstream;
extern char logfilename[1024];
#endif
//#define DEVELOP // Disable this for release builds to remove excessive cheat commands and enable MD5 checking and stuff, all in one go. :3

4
src/i_system.h
View File

@ -226,10 +226,6 @@ void I_StartupMouse(void);
*/
void I_StartupMouse2(void);
/** \brief keyboard startup, shutdown, handler
*/
void I_StartupKeyboard(void);
/** \brief setup timer irq and user timer routine.
*/
void I_StartupTimer(void);

8
src/sdl/i_main.c
View File

@ -45,6 +45,7 @@ extern int SDL_main(int argc, char *argv[]);
#ifdef LOGMESSAGES
FILE *logstream = NULL;
char logfilename[1024];
#endif
#ifndef DOXYGEN
@ -130,10 +131,12 @@ int main(int argc, char **argv)
#ifdef LOGMESSAGES
#ifdef DEFAULTDIR
if (logdir)
logstream = fopen(va("%s/"DEFAULTDIR"/log.txt",logdir), "wt");
strcpy(logfilename, va("%s/"DEFAULTDIR"/log.txt",logdir));
else
#endif
logstream = fopen("./log.txt", "wt");
strcpy(logfilename, "./log.txt");
logstream = fopen(logfilename, "wt");
#endif
//I_OutputMsg("I_StartupSystem() ...\n");
@ -157,6 +160,7 @@ int main(int argc, char **argv)
#endif
MakeCodeWritable();
#endif
// startup SRB2
CONS_Printf("Setting up SRB2Kart...\n");
D_SRB2Main();

132
src/sdl/i_system.c
View File

@ -102,6 +102,12 @@ typedef LPVOID (WINAPI *p_MapViewOfFile) (HANDLE, DWORD, DWORD, DWORD, SIZE_T);
#endif
#endif
#if (defined (__unix__) && !defined (_MSDOS)) || defined (UNIXCOMMON)
#include <errno.h>
#include <sys/wait.h>
#define NEWSIGNALHANDLER
#endif
#ifndef NOMUMBLE
#ifdef __linux__ // need -lrt
#include <sys/mman.h>
@ -246,13 +252,11 @@ SDL_bool framebuffer = SDL_FALSE;
UINT8 keyboard_started = false;
FUNCNORETURN static ATTRNORETURN void signal_handler(INT32 num)
static void I_ReportSignal(int num, int coredumped)
{
//static char msg[] = "oh no! back to reality!\r\n";
const char * sigmsg;
char sigdef[32];
D_QuitNetGame(); // Fix server freezes
char msg[128];
switch (num)
{
@ -278,20 +282,41 @@ FUNCNORETURN static ATTRNORETURN void signal_handler(INT32 num)
sigmsg = "SIGABRT - abnormal termination triggered by abort call";
break;
default:
sprintf(sigdef,"signal number %d", num);
sigmsg = sigdef;
sprintf(msg,"signal number %d", num);
if (coredumped)
sigmsg = 0;
else
sigmsg = msg;
}
I_OutputMsg("\nsignal_handler() error: %s\n", sigmsg);
if (coredumped)
{
if (sigmsg)
sprintf(msg, "%s (core dumped)", sigmsg);
else
strcat(msg, " (core dumped)");
sigmsg = msg;
}
I_OutputMsg("\nProcess killed by signal: %s\n\n", sigmsg);
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR,
"Signal caught",
"Process killed by signal",
sigmsg, NULL);
}
#ifndef NEWSIGNALHANDLER
FUNCNORETURN static ATTRNORETURN void signal_handler(INT32 num)
{
D_QuitNetGame(); // Fix server freezes
I_ReportSignal(num, 0);
I_ShutdownSystem();
signal(num, SIG_DFL); //default signal action
raise(num);
I_Quit();
}
#endif
FUNCNORETURN static ATTRNORETURN void quit_handler(int num)
{
@ -667,7 +692,7 @@ static inline void I_ShutdownConsole(void){}
//
// StartupKeyboard
//
void I_StartupKeyboard (void)
void I_RegisterSignals (void)
{
#ifdef SIGINT
signal(SIGINT , quit_handler);
@ -681,10 +706,12 @@ void I_StartupKeyboard (void)
// If these defines don't exist,
// then compilation would have failed above us...
#ifndef NEWSIGNALHANDLER
signal(SIGILL , signal_handler);
signal(SIGSEGV , signal_handler);
signal(SIGABRT , signal_handler);
signal(SIGFPE , signal_handler);
#endif
}
//
@ -3022,6 +3049,85 @@ void I_Sleep(void)
SDL_Delay(cv_sleep.value);
}
#ifdef NEWSIGNALHANDLER
static void newsignalhandler_Warn(const char *pr)
{
char text[128];
snprintf(text, sizeof text,
"Error while setting up signal reporting: %s: %s",
pr,
strerror(errno)
);
I_OutputMsg("%s\n", text);
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR,
"Startup error",
text, NULL);
I_ShutdownConsole();
exit(-1);
}
static void I_Fork(void)
{
int child;
int status;
int signum;
int c;
child = fork();
switch (child)
{
case -1:
newsignalhandler_Warn("fork()");
break;
case 0:
break;
default:
if (logstream)
fclose(logstream);/* the child has this */
c = wait(&status);
#ifdef LOGMESSAGES
/* By the way, exit closes files. */
logstream = fopen(logfilename, "at");
#else
logstream = 0;
#endif
if (c == -1)
{
kill(child, SIGKILL);
newsignalhandler_Warn("wait()");
}
else
{
if (WIFSIGNALED (status))
{
signum = WTERMSIG (status);
#ifdef WCOREDUMP
I_ReportSignal(signum, WCOREDUMP (status));
#else
I_ReportSignal(signum, 0);
#endif
status = 128 + signum;
}
else if (WIFEXITED (status))
{
status = WEXITSTATUS (status);
}
I_ShutdownConsole();
exit(status);
}
}
}
#endif/*NEWSIGNALHANDLER*/
INT32 I_StartupSystem(void)
{
SDL_version SDLcompiled;
@ -3029,6 +3135,10 @@ INT32 I_StartupSystem(void)
SDL_VERSION(&SDLcompiled)
SDL_GetVersion(&SDLlinked);
I_StartupConsole();
#ifdef NEWSIGNALHANDLER
I_Fork();
#endif
I_RegisterSignals();
I_OutputMsg("Compiled for SDL version: %d.%d.%d\n",
SDLcompiled.major, SDLcompiled.minor, SDLcompiled.patch);
I_OutputMsg("Linked with SDL version: %d.%d.%d\n",
@ -3271,6 +3381,10 @@ void I_ShutdownSystem(void)
{
INT32 c;
#ifndef NEWSIGNALHANDLER
I_ShutdownConsole();
#endif
for (c = MAX_QUIT_FUNCS-1; c >= 0; c--)
if (quit_funcs[c])
(*quit_funcs[c])();