Function spawn_ignoring_tree

tests/test_subprocess.c:293–308

}

static int spawn_ignoring_tree(const char *pid_path, int quiet_timeout_ms, int cancel_grace_ms,
                               cbm_subprocess_t **out) {
    /* The direct child installs its trap before starting a nested shell. The two
     * PIDs are written only after the nested process exists, eliminating the
     * cancellation-before-trap race from the test. */
    const char *script = "trap '' TERM; "
                         "/bin/sh -c 'trap \"\" TERM; while :; do sleep 1; done' cbm-grandchild & "
                         "grandchild=$!; echo \"$$ $grandchild\" > \"$1\"; wait";
    const char *argv[] = {"/bin/sh", "-c", script, "cbm-parent", pid_path, NULL};
    cbm_proc_opts_t opts = {0};
    opts.bin = "/bin/sh";
    opts.argv = argv;
    opts.quiet_timeout_ms = quiet_timeout_ms;
    opts.cancel_grace_ms = cancel_grace_ms;
    return cbm_subprocess_spawn(&opts, out);
}

typedef struct {
    cbm_subprocess_t *process;