C++ (Cpp) jl_check_force_sigint Examples

Example #1

File: signals-unix.c Project: JediKoder/julia

// request:
// 0: nothing
// 1: get state
// 3: throw sigint if `!defer_signal && io_wait` or if force throw threshold
//    is reached
void usr2_handler(int sig, siginfo_t *info, void *ctx)
{
    jl_tls_states_t *ptls = jl_get_ptls_states();
    sig_atomic_t request = jl_atomic_exchange(&ptls->signal_request, 0);
    if (request == 1) {
        signal_context = jl_to_bt_context(ctx);

        pthread_mutex_lock(&in_signal_lock);
        pthread_cond_broadcast(&signal_caught_cond);
        pthread_cond_wait(&exit_signal_cond, &in_signal_lock);
        request = jl_atomic_exchange(&ptls->signal_request, 0);
        assert(request == 1);
        (void)request;
        pthread_cond_broadcast(&signal_caught_cond);
        pthread_mutex_unlock(&in_signal_lock);
    }
    else if (request == 2) {
        jl_unblock_signal(sig);
        int force = jl_check_force_sigint();
        if (force || (!ptls->defer_signal && ptls->io_wait)) {
            jl_safepoint_consume_sigint();
            if (force)
                jl_safe_printf("WARNING: Force throwing a SIGINT\n");
            // Force a throw
            jl_clear_force_sigint();
            jl_throw_in_ctx(jl_interrupt_exception, ctx);
        }
    }
}

Example #2

File: signals-win.c Project: R-ichardBall/julia

static void jl_try_throw_sigint(void)
{
    jl_ptls_t ptls = jl_get_ptls_states();
    jl_safepoint_enable_sigint();
    jl_wake_libuv();
    int force = jl_check_force_sigint();
    if (force || (!ptls->defer_signal && ptls->io_wait)) {
        jl_safepoint_consume_sigint();
        if (force)
            jl_safe_printf("WARNING: Force throwing a SIGINT\n");
        // Force a throw
        jl_clear_force_sigint();
        jl_throw(jl_interrupt_exception);
    }
}

Example #3

File: signals-win.c Project: R-ichardBall/julia

// Try to throw the exception in the master thread.
static void jl_try_deliver_sigint(void)
{
    jl_ptls_t ptls2 = jl_all_tls_states[0];
    jl_safepoint_enable_sigint();
    jl_wake_libuv();
    if ((DWORD)-1 == SuspendThread(hMainThread)) {
        // error
        jl_safe_printf("error: SuspendThread failed\n");
        return;
    }
    int force = jl_check_force_sigint();
    if (force || (!ptls2->defer_signal && ptls2->io_wait)) {
        jl_safepoint_consume_sigint();
        if (force)
            jl_safe_printf("WARNING: Force throwing a SIGINT\n");
        // Force a throw
        jl_clear_force_sigint();
        CONTEXT ctxThread;
        memset(&ctxThread, 0, sizeof(CONTEXT));
        ctxThread.ContextFlags = CONTEXT_CONTROL | CONTEXT_INTEGER;
        if (!GetThreadContext(hMainThread, &ctxThread)) {
            // error
            jl_safe_printf("error: GetThreadContext failed\n");
            return;
        }
        jl_throw_in_ctx(jl_interrupt_exception, &ctxThread, 1);
        ctxThread.ContextFlags = CONTEXT_CONTROL | CONTEXT_INTEGER;
        if (!SetThreadContext(hMainThread, &ctxThread)) {
            jl_safe_printf("error: SetThreadContext failed\n");
            // error
            return;
        }
    }
    if ((DWORD)-1 == ResumeThread(hMainThread)) {
        jl_safe_printf("error: ResumeThread failed\n");
        // error
        return;
    }
}

Example #4

File: signals-unix.c Project: Evizero/julia

// request:
// 0: nothing
// 1: get state
// 2: throw sigint if `!defer_signal && io_wait` or if force throw threshold
//    is reached
// 3: exit with `thread0_exit_state`
void usr2_handler(int sig, siginfo_t *info, void *ctx)
{
    jl_ptls_t ptls = jl_get_ptls_states();
    int errno_save = errno;
    sig_atomic_t request = jl_atomic_exchange(&ptls->signal_request, 0);
#if !defined(JL_DISABLE_LIBUNWIND)
    if (request == 1) {
        signal_context = jl_to_bt_context(ctx);

        pthread_mutex_lock(&in_signal_lock);
        pthread_cond_broadcast(&signal_caught_cond);
        pthread_cond_wait(&exit_signal_cond, &in_signal_lock);
        request = jl_atomic_exchange(&ptls->signal_request, 0);
        assert(request == 1);
        (void)request;
        pthread_cond_broadcast(&signal_caught_cond);
        pthread_mutex_unlock(&in_signal_lock);
    }
    else
#endif
    if (request == 2) {
        int force = jl_check_force_sigint();
        if (force || (!ptls->defer_signal && ptls->io_wait)) {
            jl_safepoint_consume_sigint();
            if (force)
                jl_safe_printf("WARNING: Force throwing a SIGINT\n");
            // Force a throw
            jl_clear_force_sigint();
            jl_throw_in_ctx(ptls, jl_interrupt_exception, sig, ctx);
        }
    }
    else if (request == 3) {
        jl_call_in_ctx(ptls, jl_exit_thread0_cb, sig, ctx);
    }
    errno = errno_save;
}