blob: 2dd2aed7bee1581d725f5c8589a3a3b3e67b8111 [file] [log] [blame]
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <set>
#include <vector>
#include "base/basictypes.h"
#include "base/containers/hash_tables.h"
#include "base/synchronization/lock.h"
#include "tools/gn/target.h"
class BuildSettings;
class Err;
class ItemTree;
class LocationRange;
class ToolchainManager;
class Value;
// Manages all the targets in the system. This integrates with the ItemTree
// to manage the target-specific rules and creation.
// This class is threadsafe.
class TargetManager {
explicit TargetManager(const BuildSettings* settings);
// Gets a reference to a named target. The given target name is created if
// it doesn't exist.
// The label should be fully specified in that it should include an
// explicit toolchain.
// |specified_from_here| should indicate the dependency or the target
// generator causing this access for error message generation.
// |dep_from| should be set when a target is getting a dep that it depends
// on. |dep_from| indicates the target that specified the dependency. It
// will be used to track outstanding dependencies so we can know when the
// target and all of its dependencies are complete. It should be null when
// getting a target for other reasons.
// On failure, |err| will be set.
// The returned pointer must not be dereferenced until it's generated, since
// it could be being generated on another thread.
Target* GetTarget(const Label& label,
const LocationRange& specified_from_here,
Target* dep_from,
Err* err);
// Called by a target when it has been loaded from the .gin file. Its
// dependencies may or may not be resolved yet.
void TargetGenerationComplete(const Label& label);
// Returns a list of all targets.
void GetAllTargets(std::vector<const Target*>* all_targets) const;
bool ScheduleInvocationLocked(const LocationRange& specified_from_here,
const Label& label,
Err* err);
const BuildSettings* build_settings_;