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RJK's general signal-handling robustness patch. Should fix the weird

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spin behaviour occasionally seen after pterm's child process dies.

[originally from svn r2181]
This commit is contained in:
Simon Tatham
2002-11-02 14:35:57 +00:00
parent 406bc897b3
commit 93e9fadc75
5 changed files with 91 additions and 36 deletions
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19
unix/pterm.c
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@ -1927,12 +1927,27 @@ int do_cmdline(int argc, char **argv, int do_everything)
return err;
}
static void block_signal(int sig, int block_it) {
sigset_t ss;
sigemptyset(&ss);
sigaddset(&ss, sig);
if(sigprocmask(block_it ? SIG_BLOCK : SIG_UNBLOCK, &ss, 0) < 0) {
perror("sigprocmask");
exit(1);
}
}
int main(int argc, char **argv)
{
extern int pty_master_fd; /* declared in pty.c */
extern void pty_pre_init(void); /* declared in pty.c */
struct gui_data *inst;
/* defer any child exit handling until we're ready to deal with
* it */
block_signal(SIGCHLD, 1);
pty_pre_init();
gtk_init(&argc, &argv);
@ -2090,6 +2105,10 @@ int main(int argc, char **argv)
inst->master_func_id = gdk_input_add(pty_master_fd, GDK_INPUT_READ,
pty_input_func, inst);
/* now we're reday to deal with the child exit handler being
* called */
block_signal(SIGCHLD, 0);
gtk_main();
return 0;