scrcpy/app/src/file_handler.c

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#include "file_handler.h"
#include <string.h>
#include <SDL2/SDL_assert.h>
#include "config.h"
#include "command.h"
#include "lock_util.h"
#include "log.h"
#define DEFAULT_PUSH_TARGET "/sdcard/"
static void
file_handler_request_destroy(struct file_handler_request *req) {
SDL_free(req->file);
}
bool
file_handler_init(struct file_handler *file_handler, const char *serial,
const char *push_target) {
cbuf_init(&file_handler->queue);
if (!(file_handler->mutex = SDL_CreateMutex())) {
return false;
}
if (!(file_handler->event_cond = SDL_CreateCond())) {
SDL_DestroyMutex(file_handler->mutex);
return false;
}
if (serial) {
file_handler->serial = SDL_strdup(serial);
if (!file_handler->serial) {
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LOGW("Could not strdup serial");
SDL_DestroyCond(file_handler->event_cond);
SDL_DestroyMutex(file_handler->mutex);
return false;
}
} else {
file_handler->serial = NULL;
}
// lazy initialization
file_handler->initialized = false;
file_handler->stopped = false;
file_handler->current_process = PROCESS_NONE;
file_handler->push_target = push_target ? push_target : DEFAULT_PUSH_TARGET;
return true;
}
void
file_handler_destroy(struct file_handler *file_handler) {
SDL_DestroyCond(file_handler->event_cond);
SDL_DestroyMutex(file_handler->mutex);
SDL_free(file_handler->serial);
struct file_handler_request req;
while (cbuf_take(&file_handler->queue, &req)) {
file_handler_request_destroy(&req);
}
}
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, const char *push_target) {
return adb_push(serial, file, push_target);
}
bool
file_handler_request(struct file_handler *file_handler,
file_handler_action_t action, char *file) {
// start file_handler if it's used for the first time
if (!file_handler->initialized) {
if (!file_handler_start(file_handler)) {
return false;
}
file_handler->initialized = true;
}
LOGI("Request to %s %s", action == ACTION_INSTALL_APK ? "install" : "push",
file);
struct file_handler_request req = {
.action = action,
.file = file,
};
mutex_lock(file_handler->mutex);
bool was_empty = cbuf_is_empty(&file_handler->queue);
bool res = cbuf_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 && cbuf_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 file_handler_request req;
bool non_empty = cbuf_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->push_target);
}
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 %s", req.file,
file_handler->push_target);
} else {
LOGE("Failed to push %s to %s", req.file,
file_handler->push_target);
}
}
file_handler_request_destroy(&req);
}
return 0;
}
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 false;
}
return true;
}
void
file_handler_stop(struct file_handler *file_handler) {
mutex_lock(file_handler->mutex);
file_handler->stopped = true;
cond_signal(file_handler->event_cond);
if (file_handler->current_process != PROCESS_NONE) {
if (!cmd_terminate(file_handler->current_process)) {
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LOGW("Could not 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);
}