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ohwgiles_laminar/src/laminar.h
2016-07-25 15:00:49 +03:00

104 lines
3.4 KiB
C++

///
/// Copyright 2016 Oliver Giles
///
/// This file is part of Laminar
///
/// Laminar is free software: you can redistribute it and/or modify
/// it under the terms of the GNU General Public License as published by
/// the Free Software Foundation, either version 3 of the License, or
/// (at your option) any later version.
///
/// Laminar is distributed in the hope that it will be useful,
/// but WITHOUT ANY WARRANTY; without even the implied warranty of
/// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
/// GNU General Public License for more details.
///
/// You should have received a copy of the GNU General Public License
/// along with Laminar. If not, see <http://www.gnu.org/licenses/>
///
#ifndef _LAMINAR_LAMINAR_H_
#define _LAMINAR_LAMINAR_H_
#include "interface.h"
#include "run.h"
#include "node.h"
#include "database.h"
#include <unordered_map>
// Node name to node object map
typedef std::unordered_map<std::string,Node> NodeMap;
struct Server;
class Json;
// The main class implementing the application's business logic.
// It owns a Server to manage the HTTP/websocket and Cap'n Proto RPC
// interfaces and communicates via the LaminarInterface methods and
// the LaminarClient objects (see interface.h)
class Laminar final : public LaminarInterface {
public:
Laminar();
~Laminar();
// Runs the application forever
void run();
// Call this in a signal handler to make run() return
void stop();
// Implementations of LaminarInterface
std::shared_ptr<Run> queueJob(std::string name, ParamMap params = ParamMap()) override;
kj::Promise<RunState> waitForRun(std::string name, int buildNum) override;
kj::Promise<RunState> waitForRun(const Run* run) override;
void registerClient(LaminarClient* client) override;
void deregisterClient(LaminarClient* client) override;
void sendStatus(LaminarClient* client) override;
bool setParam(std::string job, int buildNum, std::string param, std::string value) override;
bool getArtefact(std::string path, std::string& result) override;
private:
bool loadConfiguration();
void reapAdvance();
void assignNewJobs();
bool stepRun(std::shared_ptr<Run> run);
void runFinished(Run*);
bool nodeCanQueue(const Node&, const Run&) const;
// expects that Json has started an array
void populateArtifacts(Json& out, std::string job, int num) const;
Run* activeRun(std::string name, int num) {
auto it = activeJobs.get<1>().find(boost::make_tuple(name, num));
return it == activeJobs.get<1>().end() ? nullptr : it->get();
}
std::list<std::shared_ptr<Run>> queuedJobs;
// Implements the waitForRun API.
// TODO: refactor
struct Waiter {
Waiter() : paf(kj::newPromiseAndFulfiller<RunState>()) {}
void release(RunState state) {
paf.fulfiller->fulfill(RunState(state));
}
kj::Promise<RunState> takePromise() { return std::move(paf.promise); }
private:
kj::PromiseFulfillerPair<RunState> paf;
};
std::unordered_map<const Run*,std::list<Waiter>> waiters;
std::unordered_map<std::string, uint> buildNums;
std::unordered_map<std::string, std::set<std::string>> jobTags;
RunSet activeJobs;
Database* db;
Server* srv;
NodeMap nodes;
std::string homeDir;
std::set<LaminarClient*> clients;
bool eraseWorkdir;
std::string archiveUrl;
};
#endif // _LAMINAR_LAMINAR_H_