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#include "base/task_runner.h"

#include "base/mutex.h"
#include "base/port.h"
#include "base/task_manager.h"
#include "base/task_token.h"

namespace mozc {

const TaskToken TaskRunner::token() const {
  return token_;
}

const TaskRequestInterface *TaskRunner::request() const {
  return request_;
}

void TaskRunner::CancelTask() {
  scoped_lock l(&mutex_);
  canceled_ = true;
}

bool TaskRunner::canceled() {
  scoped_lock l(&mutex_);
  return canceled_;
}

void TaskRunner::DestroyTaskRunner() {
  delete this;
}

TaskRunner::TaskRunner(
    const TaskToken &token, const TaskRequestInterface *request,
    TaskRunnerCallbackInterface *callback)
    : token_(token), request_(request), callback_(callback),
      task_manager_(NULL), canceled_(false) {
}

TaskRunner::TaskRunner(
    const TaskToken &token, const TaskRequestInterface *request,
    TaskManager *task_manager)
    : token_(token), request_(request), callback_(NULL),
      task_manager_(task_manager), canceled_(false) {
}

TaskRunner::~TaskRunner() {}

void TaskRunner::CompleteTask(TaskResponseInterface *response) {
  if (callback_ != NULL) {
    callback_->OnTaskDone(this, token_, request_, response);
  } else if (task_manager_ != NULL) {
    task_manager_->OnTaskDone(this, token_, request_, response);
  }
  delete this;
}

}  // namespace mozc