diff options
Diffstat (limited to '')
| -rw-r--r-- | ui.cpp | 85 |
1 files changed, 40 insertions, 45 deletions
@@ -39,11 +39,6 @@ #define UI_WAIT_KEY_TIMEOUT_SEC 120 -// There's only (at most) one of these objects, and global callbacks -// (for pthread_create, and the input event system) need to find it, -// so use a global variable. -static RecoveryUI* self = NULL; - RecoveryUI::RecoveryUI() : key_queue_len(0), key_last_down(-1), @@ -55,9 +50,8 @@ RecoveryUI::RecoveryUI() has_power_key(false), has_up_key(false), has_down_key(false) { - pthread_mutex_init(&key_queue_mutex, NULL); - pthread_cond_init(&key_queue_cond, NULL); - self = this; + pthread_mutex_init(&key_queue_mutex, nullptr); + pthread_cond_init(&key_queue_cond, nullptr); memset(key_pressed, 0, sizeof(key_pressed)); } @@ -71,16 +65,29 @@ void RecoveryUI::OnKeyDetected(int key_code) { } } +int RecoveryUI::InputCallback(int fd, uint32_t epevents, void* data) { + return reinterpret_cast<RecoveryUI*>(data)->OnInputEvent(fd, epevents); +} + +// Reads input events, handles special hot keys, and adds to the key queue. +static void* InputThreadLoop(void*) { + while (true) { + if (!ev_wait(-1)) { + ev_dispatch(); + } + } + return nullptr; +} + void RecoveryUI::Init() { - ev_init(input_callback, NULL); + ev_init(InputCallback, this); - using namespace std::placeholders; - ev_iterate_available_keys(std::bind(&RecoveryUI::OnKeyDetected, this, _1)); + ev_iterate_available_keys(std::bind(&RecoveryUI::OnKeyDetected, this, std::placeholders::_1)); - pthread_create(&input_t, NULL, input_thread, NULL); + pthread_create(&input_thread_, nullptr, InputThreadLoop, nullptr); } -int RecoveryUI::input_callback(int fd, uint32_t epevents, void* data) { +int RecoveryUI::OnInputEvent(int fd, uint32_t epevents) { struct input_event ev; if (ev_get_input(fd, epevents, &ev) == -1) { return -1; @@ -94,23 +101,23 @@ int RecoveryUI::input_callback(int fd, uint32_t epevents, void* data) { // the trackball. When it exceeds a threshold // (positive or negative), fake an up/down // key event. - self->rel_sum += ev.value; - if (self->rel_sum > 3) { - self->process_key(KEY_DOWN, 1); // press down key - self->process_key(KEY_DOWN, 0); // and release it - self->rel_sum = 0; - } else if (self->rel_sum < -3) { - self->process_key(KEY_UP, 1); // press up key - self->process_key(KEY_UP, 0); // and release it - self->rel_sum = 0; + rel_sum += ev.value; + if (rel_sum > 3) { + ProcessKey(KEY_DOWN, 1); // press down key + ProcessKey(KEY_DOWN, 0); // and release it + rel_sum = 0; + } else if (rel_sum < -3) { + ProcessKey(KEY_UP, 1); // press up key + ProcessKey(KEY_UP, 0); // and release it + rel_sum = 0; } } } else { - self->rel_sum = 0; + rel_sum = 0; } if (ev.type == EV_KEY && ev.code <= KEY_MAX) { - self->process_key(ev.code, ev.value); + ProcessKey(ev.code, ev.value); } return 0; @@ -128,7 +135,7 @@ int RecoveryUI::input_callback(int fd, uint32_t epevents, void* data) { // a key is registered. // // updown == 1 for key down events; 0 for key up events -void RecoveryUI::process_key(int key_code, int updown) { +void RecoveryUI::ProcessKey(int key_code, int updown) { bool register_key = false; bool long_press = false; bool reboot_enabled; @@ -139,13 +146,13 @@ void RecoveryUI::process_key(int key_code, int updown) { ++key_down_count; key_last_down = key_code; key_long_press = false; - pthread_t th; key_timer_t* info = new key_timer_t; info->ui = this; info->key_code = key_code; info->count = key_down_count; - pthread_create(&th, NULL, &RecoveryUI::time_key_helper, info); - pthread_detach(th); + pthread_t thread; + pthread_create(&thread, nullptr, &RecoveryUI::time_key_helper, info); + pthread_detach(thread); } else { if (key_last_down == key_code) { long_press = key_long_press; @@ -182,7 +189,7 @@ void* RecoveryUI::time_key_helper(void* cookie) { key_timer_t* info = (key_timer_t*) cookie; info->ui->time_key(info->key_code, info->count); delete info; - return NULL; + return nullptr; } void RecoveryUI::time_key(int key_code, int count) { @@ -206,17 +213,6 @@ void RecoveryUI::EnqueueKey(int key_code) { pthread_mutex_unlock(&key_queue_mutex); } - -// Reads input events, handles special hot keys, and adds to the key queue. -void* RecoveryUI::input_thread(void* cookie) { - while (true) { - if (!ev_wait(-1)) { - ev_dispatch(); - } - } - return NULL; -} - int RecoveryUI::WaitKey() { pthread_mutex_lock(&key_queue_mutex); @@ -225,7 +221,7 @@ int RecoveryUI::WaitKey() { do { struct timeval now; struct timespec timeout; - gettimeofday(&now, NULL); + gettimeofday(&now, nullptr); timeout.tv_sec = now.tv_sec; timeout.tv_nsec = now.tv_usec * 1000; timeout.tv_sec += UI_WAIT_KEY_TIMEOUT_SEC; @@ -234,7 +230,7 @@ int RecoveryUI::WaitKey() { while (key_queue_len == 0 && rc != ETIMEDOUT) { rc = pthread_cond_timedwait(&key_queue_cond, &key_queue_mutex, &timeout); } - } while (usb_connected() && key_queue_len == 0); + } while (IsUsbConnected() && key_queue_len == 0); int key = -1; if (key_queue_len > 0) { @@ -245,8 +241,7 @@ int RecoveryUI::WaitKey() { return key; } -// Return true if USB is connected. -bool RecoveryUI::usb_connected() { +bool RecoveryUI::IsUsbConnected() { int fd = open("/sys/class/android_usb/android0/state", O_RDONLY); if (fd < 0) { printf("failed to open /sys/class/android_usb/android0/state: %s\n", @@ -255,7 +250,7 @@ bool RecoveryUI::usb_connected() { } char buf; - /* USB is connected if android_usb state is CONNECTED or CONFIGURED */ + // USB is connected if android_usb state is CONNECTED or CONFIGURED. int connected = (read(fd, &buf, 1) == 1) && (buf == 'C'); if (close(fd) < 0) { printf("failed to close /sys/class/android_usb/android0/state: %s\n", |