diff options
Diffstat (limited to 'vis.c')
| -rw-r--r-- | vis.c | 35 |
1 files changed, 35 insertions, 0 deletions
@@ -2312,8 +2312,23 @@ static Key getkey(void) { return key; } +static void sigbus_handler(int sig, siginfo_t *siginfo, void *context) { + for (File *file = vis->files; file; file = file->next) { + if (text_sigbus(file->text, siginfo->si_addr)) + file->truncated = true; + } + vis->sigbus = true; + siglongjmp(vis->sigbus_jmpbuf, 1); +} + static void mainloop() { struct timespec idle = { .tv_nsec = 0 }, *timeout = NULL; + struct sigaction sa_sigbus; + memset(&sa_sigbus, 0, sizeof sa_sigbus); + sa_sigbus.sa_flags = SA_SIGINFO; + sa_sigbus.sa_sigaction = sigbus_handler; + if (sigaction(SIGBUS, &sa_sigbus, NULL)) + die("sigaction: %s", strerror(errno)); sigset_t emptyset, blockset; sigemptyset(&emptyset); sigemptyset(&blockset); @@ -2323,11 +2338,31 @@ static void mainloop() { editor_draw(vis); vis->running = true; + sigsetjmp(vis->sigbus_jmpbuf, 1); + while (vis->running) { fd_set fds; FD_ZERO(&fds); FD_SET(STDIN_FILENO, &fds); + if (vis->sigbus) { + char *name = NULL; + for (Win *next, *win = vis->windows; win; win = next) { + next = win->next; + if (win->file->truncated) { + free(name); + name = strdup(win->file->name); + editor_window_close(win); + } + } + if (!vis->windows) + die("WARNING: file `%s' truncated!\n", name ? name : "-"); + else + editor_info_show(vis, "WARNING: file `%s' truncated!\n", name ? name : "-"); + vis->sigbus = false; + free(name); + } + editor_update(vis); idle.tv_sec = vis->mode->idle_timeout; int r = pselect(1, &fds, NULL, NULL, timeout, &emptyset); |