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pr: Fix process slot exhaustion in process lifecycle (#16)

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* fix process slot reuse after exit

* fix terminal tty reuse after close
This commit is contained in:
zeyad
2026-05-11 03:01:12 +06:00
committed by GitHub
parent 10018b62a3
commit 6993041a96
3 changed files with 54 additions and 41 deletions
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20
src/userland/cli/bsh.c
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@@ -897,24 +897,10 @@ static void show_matches(const char *prompt_tmpl, const char *line, int len, cha
redraw_input(prompt_tmpl, line, len, len);
}
static int pid_exists(int pid) {
char path[64];
path[0] = 0;
strcat(path, "/proc/");
char pid_buf[16];
itoa(pid, pid_buf);
strcat(path, pid_buf);
strcat(path, "/status");
int fd = sys_open(path, "r");
if (fd < 0) return 0;
char buf[8];
int bytes = sys_read(fd, buf, sizeof(buf));
sys_close(fd);
return bytes > 0;
}
static void wait_for_pid(int pid) {
while (pid_exists(pid)) {
while (1) {
int rc = sys_waitpid(pid, NULL, 1);
if (rc == pid || rc < 0) break;
if (g_tty_id >= 0) {
int fg = sys_tty_get_fg(g_tty_id);
if (fg != pid) break;

3
src/userland/gui/terminal.c
View File

@@ -1224,7 +1224,8 @@ int main(void) {
while (ui_get_event(g_win, &ev)) {
if (ev.type == GUI_EVENT_CLOSE) {
for (int i = 0; i < g_tab_count; i++) {
if (g_tabs[i].bsh_pid > 0) sys_kill(g_tabs[i].bsh_pid);
sys_tty_kill_all(g_tabs[i].tty_id);
sys_tty_destroy(g_tabs[i].tty_id);
}
sys_exit(0);
} else if (ev.type == GUI_EVENT_KEY) {