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/*
* .============.
* // M A K E / \
* // C++ DEV / \
* // E A S Y / \/ \
* ++ ----------. \/\ .
* \\ \ \ /\ /
* \\ \ \ /
* \\ \ \ /
* -============'
*
* Copyright (c) 2018 Hevake and contributors, all rights reserved.
*
* This file is part of cpp-tbox (https://github.com/cpp-main/cpp-tbox)
* Use of this source code is governed by MIT license that can be found
* in the LICENSE file in the root of the source tree. All contributing
* project authors may be found in the CONTRIBUTORS.md file in the root
* of the source tree.
*/
#include "action.h"
#include <sstream>
#include <tbox/base/log.h>
#include <tbox/base/json.hpp>
#include <tbox/event/loop.h>
#include <tbox/event/timer_event.h>
namespace tbox {
namespace flow {
int Action::_id_alloc_counter_ = 0;
Action::Action(event::Loop &loop, const std::string &type)
: loop_(loop)
, id_(++_id_alloc_counter_)
, type_(type)
{}
Action::~Action() {
if (isUnderway()) {
LogWarn("action %d:%s[%s] is still underway, state:%s",
id_, type_.c_str(), label_.c_str(),
ToString(state_).c_str());
}
cancelDispatchedCallback();
CHECK_DELETE_RESET_OBJ(timer_ev_);
}
void Action::toJson(Json &js) const {
js["id"] = id_;
js["type"] = type_;
if (!label_.empty())
js["label"] = label_;
js["state"] = ToString(state_);
js["result"] = ToString(result_);
if (!vars_.empty())
vars_.toJson(js["vars"]);
}
bool Action::start() {
if (state_ == State::kRunning)
return true;
if (state_ != State::kIdle) {
LogWarn("not allow %d:%s[%s]", id_, type_.c_str(), label_.c_str());
return false;
}
auto last_state = state_;
LogDbg("start action %d:%s[%s]", id_, type_.c_str(), label_.c_str());
is_base_func_invoked_ = false;
onStart();
if (!is_base_func_invoked_)
LogWarn("%d:%s[%s] didn't invoke base func", id_, type_.c_str(), label_.c_str());
if (last_state == state_) {
if (timer_ev_ != nullptr)
timer_ev_->enable();
state_ = State::kRunning;
}
return true;
}
bool Action::pause() {
if (state_ == State::kPause)
return true;
if (state_ != State::kRunning) {
LogWarn("not allow %d:%s[%s]", id_, type_.c_str(), label_.c_str());
return false;
}
auto last_state = state_;
LogDbg("pause action %d:%s[%s]", id_, type_.c_str(), label_.c_str());
is_base_func_invoked_ = false;
onPause();
if (!is_base_func_invoked_)
LogWarn("%d:%s[%s] didn't invoke base func", id_, type_.c_str(), label_.c_str());
if (last_state == state_) {
if (timer_ev_ != nullptr)
timer_ev_->disable();
state_ = State::kPause;
}
return true;
}
bool Action::resume() {
if (state_ == State::kRunning)
return true;
if (state_ != State::kPause) {
LogWarn("not allow %d:%s[%s]", id_, type_.c_str(), label_.c_str());
return false;
}
auto last_state = state_;
LogDbg("resume action %d:%s[%s]", id_, type_.c_str(), label_.c_str());
is_base_func_invoked_ = false;
onResume();
if (!is_base_func_invoked_)
LogWarn("%d:%s[%s] didn't invoke base func", id_, type_.c_str(), label_.c_str());
if (last_state == state_) {
if (timer_ev_ != nullptr)
timer_ev_->enable();
state_ = State::kRunning;
}
return true;
}
bool Action::stop() {
if (!isUnderway())
return true;
LogDbg("stop action %d:%s[%s]", id_, type_.c_str(), label_.c_str());
state_ = State::kStoped;
if (timer_ev_ != nullptr)
timer_ev_->disable();
is_base_func_invoked_ = false;
onStop();
if (!is_base_func_invoked_)
LogWarn("%d:%s[%s] didn't invoke base func", id_, type_.c_str(), label_.c_str());
onFinal();
return true;
}
bool Action::finish(bool is_succ, const Reason &why, const Trace &trace) {
if (state_ != State::kFinished && state_ != State::kStoped) {
LogDbg("action %d:%s[%s] finished, is_succ: %s", id_, type_.c_str(), label_.c_str(),
(is_succ? "succ" : "fail"));
state_ = State::kFinished;
if (timer_ev_ != nullptr)
timer_ev_->disable();
is_base_func_invoked_ = false;
onFinished(is_succ, why, trace);
if (!is_base_func_invoked_)
LogWarn("%d:%s[%s] didn't invoke base func", id_, type_.c_str(), label_.c_str());
onFinal();
return true;
} else {
LogWarn("not allow %d:%s[%s]", id_, type_.c_str(), label_.c_str());
return false;
}
}
bool Action::block(const Reason &why, const Trace &trace) {
if (state_ != State::kFinished && state_ != State::kStoped) {
LogDbg("action %d:%s[%s] blocked", id_, type_.c_str(), label_.c_str());
state_ = State::kPause;
is_base_func_invoked_ = false;
onBlock(why, trace);
if (!is_base_func_invoked_)
LogWarn("%d:%s[%s] didn't invoke base func", id_, type_.c_str(), label_.c_str());
return true;
} else {
LogWarn("not allow %d:%s[%s]", id_, type_.c_str(), label_.c_str());
return false;
}
}
void Action::reset() {
if (state_ == State::kIdle)
return;
LogDbg("reset action %d:%s[%s]", id_, type_.c_str(), label_.c_str());
if (isUnderway()) {
LogWarn("be careful, action %d:%s[%s] in state:%s",
id_, type_.c_str(), label_.c_str(), ToString(state_).c_str());
}
is_base_func_invoked_ = false;
onReset();
if (!is_base_func_invoked_)
LogWarn("%d:%s[%s] didn't invoke base func", id_, type_.c_str(), label_.c_str());
if (timer_ev_ != nullptr)
timer_ev_->disable();
cancelDispatchedCallback();
state_ = State::kIdle;
result_ = Result::kUnsure;
}
void Action::setTimeout(std::chrono::milliseconds ms) {
LogDbg("set action %d:%s[%s] timeout: %d", id_, type_.c_str(), label_.c_str(), ms.count());
if (timer_ev_ == nullptr) {
timer_ev_ = loop_.newTimerEvent("Action::timer_ev_");
timer_ev_->setCallback(
[this] {
LogDbg("action %d:%s[%s] timeout", id_, type_.c_str(), label_.c_str());
onTimeout();
}
);
} else {
timer_ev_->disable();
}
timer_ev_->initialize(ms, event::Event::Mode::kOneshot);
if (state_ == State::kRunning)
timer_ev_->enable();
}
void Action::resetTimeout() {
LogDbg("reset action %d:%s[%s] timeout", id_, type_.c_str(), label_.c_str());
if (timer_ev_ != nullptr) {
auto tobe_delete = timer_ev_;
timer_ev_ = nullptr;
tobe_delete->disable();
loop_.runNext([tobe_delete] { delete tobe_delete; }, "Action::resetTimeout, delete");
}
}
void Action::onStart() { is_base_func_invoked_ = true; }
void Action::onPause() { is_base_func_invoked_ = true; }
void Action::onResume() { is_base_func_invoked_ = true; }
void Action::onStop() { is_base_func_invoked_ = true; }
void Action::onReset() { is_base_func_invoked_ = true; }
void Action::onBlock(const Reason &why, const Trace &trace) {
if (block_cb_) {
Trace new_trace(trace);
new_trace.emplace_back(id_, type_, label_);
block_cb_run_id_ = loop_.runNext(std::bind(block_cb_, why, new_trace),
std::string("Action::block") + ToString(new_trace));
}
is_base_func_invoked_ = true;
}
void Action::onFinished(bool is_succ, const Reason &why, const Trace &trace) {
result_ = is_succ ? Result::kSuccess : Result::kFail;
if (finish_cb_) {
Trace new_trace(trace);
new_trace.emplace_back(id_, type_, label_);
finish_cb_run_id_ = loop_.runNext(std::bind(finish_cb_, is_succ, why, new_trace),
std::string("Action::finish") + ToString(new_trace));
}
is_base_func_invoked_ = true;
}
void Action::onTimeout() {
finish(false, Reason(ACTION_REASON_ACTION_TIMEOUT, "ActionTimeout"));
}
void Action::cancelDispatchedCallback() {
if (finish_cb_run_id_ != 0) {
loop_.cancel(finish_cb_run_id_);
finish_cb_run_id_ = 0;
}
if (block_cb_run_id_ != 0) {
loop_.cancel(block_cb_run_id_);
block_cb_run_id_ = 0;
}
}
bool Action::setParent(Action *parent) {
//! 如果之前设置过了，就不能再设置
if (parent != nullptr && parent_ != nullptr) {
LogWarn("%d:%s[%s] can't set %d:%s[%s] as parent. its origin parent is %d:%s[%s]",
id_, type_.c_str(), label_.c_str(),
parent->id_, parent->type_.c_str(), parent->label_.c_str(),
parent_->id_, parent_->type_.c_str(), parent_->label_.c_str());
return false;
}
vars_.setParent(&(parent->vars_));
parent_ = parent;
return true;
}
Action::Reason::Reason(const Reason &other)
: code(other.code)
, message(other.message)
{ }
Action::Reason& Action::Reason::operator = (const Reason &other) {
if (this != &other) {
code = other.code;
message = other.message;
}
return *this;
}
Action::Who::Who(const Who &other)
: id(other.id)
, type(other.type)
, label(other.label)
{ }
Action::Who& Action::Who::operator = (const Who &other) {
if (this != &other) {
id = other.id;
type = other.type;
label = other.label;
}
return *this;
}
std::string ToString(Action::State state) {
const char *tbl[] = { "idle", "running", "pause", "finished", "stoped" };
auto index = static_cast<size_t>(state);
if (index < NUMBER_OF_ARRAY(tbl))
return tbl[index];
return "unknown";
}
std::string ToString(Action::Result result) {
const char *tbl[] = { "unsure", "success", "fail" };
auto index = static_cast<size_t>(result);
if (index < NUMBER_OF_ARRAY(tbl))
return tbl[index];
return "unknown";
}
std::string ToString(const Action::Reason &reason) {
std::stringstream oss;
oss << '(' << reason.code << ':' << reason.message << ')';
return oss.str();
}
std::string ToString(const Action::Trace &trace) {
std::stringstream oss;
bool is_first = true;
for (const auto &who: trace) {
if (!is_first)
oss << "->";
is_first = false;
oss << '(' << who.id << ':' << who.type;
if (!who.label.empty())
oss << ',' << who.label;
oss << ')';
}
return oss.str();
}
}
}
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