scrcpy/app/src/file_handler.c

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C
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#include "file_handler.h"
#include <string.h>
#include <SDL2/SDL_assert.h>
#include "config.h"
#include "command.h"
#include "device.h"
#include "lockutil.h"
#include "log.h"
struct request {
file_handler_action_t action;
const char *file;
};
static struct request *request_new(file_handler_action_t action, const char *file) {
struct request *req = SDL_malloc(sizeof(*req));
if (!req) {
return NULL;
}
req->action = action;
req->file = file;
return req;
}
static void request_free(struct request *req) {
if (!req) {
return;
}
SDL_free((void *) req->file);
SDL_free((void *) req);
}
SDL_bool request_queue_is_empty(const struct request_queue *queue) {
return queue->head == queue->tail;
}
SDL_bool request_queue_is_full(const struct request_queue *queue) {
return (queue->head + 1) % REQUEST_QUEUE_SIZE == queue->tail;
}
SDL_bool request_queue_init(struct request_queue *queue) {
queue->head = 0;
queue->tail = 0;
return SDL_TRUE;
}
void request_queue_destroy(struct request_queue *queue) {
int i = queue->tail;
while (i != queue->head) {
request_free(queue->reqs[i]);
i = (i + 1) % REQUEST_QUEUE_SIZE;
}
}
SDL_bool request_queue_push(struct request_queue *queue, struct request *req) {
if (request_queue_is_full(queue)) {
return SDL_FALSE;
}
queue->reqs[queue->head] = req;
queue->head = (queue->head + 1) % REQUEST_QUEUE_SIZE;
return SDL_TRUE;
}
SDL_bool request_queue_take(struct request_queue *queue, struct request **req) {
if (request_queue_is_empty(queue)) {
return SDL_FALSE;
}
// transfer ownership
*req = queue->reqs[queue->tail];
queue->tail = (queue->tail + 1) % REQUEST_QUEUE_SIZE;
return SDL_TRUE;
}
SDL_bool file_handler_init(struct file_handler *file_handler, const char *serial) {
if (!request_queue_init(&file_handler->queue)) {
return SDL_FALSE;
}
if (!(file_handler->mutex = SDL_CreateMutex())) {
return SDL_FALSE;
}
if (!(file_handler->event_cond = SDL_CreateCond())) {
SDL_DestroyMutex(file_handler->mutex);
return SDL_FALSE;
}
if (serial) {
file_handler->serial = SDL_strdup(serial);
if (!file_handler->serial) {
LOGW("Cannot strdup serial");
SDL_DestroyMutex(file_handler->mutex);
return SDL_FALSE;
}
} else {
file_handler->serial = NULL;
}
// lazy initialization
file_handler->initialized = SDL_FALSE;
file_handler->stopped = SDL_FALSE;
file_handler->current_process = PROCESS_NONE;
return SDL_TRUE;
}
void file_handler_destroy(struct file_handler *file_handler) {
SDL_DestroyCond(file_handler->event_cond);
SDL_DestroyMutex(file_handler->mutex);
request_queue_destroy(&file_handler->queue);
SDL_free((void *) file_handler->serial);
}
static process_t install_apk(const char *serial, const char *file) {
return adb_install(serial, file);
}
static process_t push_file(const char *serial, const char *file) {
return adb_push(serial, file, DEVICE_SDCARD_PATH);
}
SDL_bool file_handler_request(struct file_handler *file_handler,
file_handler_action_t action,
const char *file) {
SDL_bool res;
// start file_handler if it's used for the first time
if (!file_handler->initialized) {
if (!file_handler_start(file_handler)) {
return SDL_FALSE;
}
file_handler->initialized = SDL_TRUE;
}
LOGI("Request to %s %s", action == ACTION_INSTALL_APK ? "install" : "push", file);
struct request *req = request_new(action, file);
if (!req) {
LOGE("Could not create request");
return SDL_FALSE;
}
mutex_lock(file_handler->mutex);
SDL_bool was_empty = request_queue_is_empty(&file_handler->queue);
res = request_queue_push(&file_handler->queue, req);
if (was_empty) {
cond_signal(file_handler->event_cond);
}
mutex_unlock(file_handler->mutex);
return res;
}
static int run_file_handler(void *data) {
struct file_handler *file_handler = data;
for (;;) {
mutex_lock(file_handler->mutex);
file_handler->current_process = PROCESS_NONE;
while (!file_handler->stopped && request_queue_is_empty(&file_handler->queue)) {
cond_wait(file_handler->event_cond, file_handler->mutex);
}
if (file_handler->stopped) {
// stop immediately, do not process further events
mutex_unlock(file_handler->mutex);
break;
}
struct request *req;
SDL_bool non_empty = request_queue_take(&file_handler->queue, &req);
SDL_assert(non_empty);
process_t process;
if (req->action == ACTION_INSTALL_APK) {
LOGI("Installing %s...", req->file);
process = install_apk(file_handler->serial, req->file);
} else {
LOGI("Pushing %s...", req->file);
process = push_file(file_handler->serial, req->file);
}
file_handler->current_process = process;
mutex_unlock(file_handler->mutex);
if (req->action == ACTION_INSTALL_APK) {
if (process_check_success(process, "adb install")) {
LOGI("%s successfully installed", req->file);
} else {
LOGE("Failed to install %s", req->file);
}
} else {
if (process_check_success(process, "adb push")) {
LOGI("%s successfully pushed to /sdcard/", req->file);
} else {
LOGE("Failed to push %s to /sdcard/", req->file);
}
}
request_free(req);
}
return 0;
}
SDL_bool file_handler_start(struct file_handler *file_handler) {
LOGD("Starting file_handler thread");
file_handler->thread = SDL_CreateThread(run_file_handler, "file_handler", file_handler);
if (!file_handler->thread) {
LOGC("Could not start file_handler thread");
return SDL_FALSE;
}
return SDL_TRUE;
}
void file_handler_stop(struct file_handler *file_handler) {
mutex_lock(file_handler->mutex);
file_handler->stopped = SDL_TRUE;
cond_signal(file_handler->event_cond);
if (file_handler->current_process != PROCESS_NONE) {
if (!cmd_terminate(file_handler->current_process)) {
LOGW("Cannot terminate install process");
}
cmd_simple_wait(file_handler->current_process, NULL);
file_handler->current_process = PROCESS_NONE;
}
mutex_unlock(file_handler->mutex);
}
void file_handler_join(struct file_handler *file_handler) {
SDL_WaitThread(file_handler->thread, NULL);
}