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// Copyright 2017 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.
{% from 'macros.tmpl' import source_files_for_generated_file %}
{{source_files_for_generated_file(template_file, input_files)}}
{% set sink_class = (name | to_singular) + "Sink" %}
{% set export_header = config["settings"]["export_header"] %}
{% set export_symbol = config["settings"]["export_symbol"] %}
#ifndef {{header_guard}}
#define {{header_guard}}
#include <atomic>
#include "{{export_header}}"
#include "third_party/blink/renderer/platform/heap/handle.h"
namespace blink {
{% for agent in agents %}
class {{ agent | agent_name_to_class }};
{% endfor %}
class {{export_symbol}} {{sink_class}} final : public GarbageCollected<{{sink_class}}> {
public:
enum AgentType : unsigned {
{% for agent in agents %}
k{{agent}} = 1u << {{loop.index0}},
{% endfor %}
};
{{sink_class}}();
~{{sink_class}}();
{{sink_class}} (const {{sink_class}}&) = delete;
{{sink_class}}& operator=(const {{sink_class}}&) = delete;
void Trace(Visitor*);
{% for agent in agents %}
{% set class_name = agent | agent_name_to_class %}
{% set getter_name = agent | to_snake_case %}
bool Has{{agent}}s() const { return !{{getter_name}}s_.IsEmpty(); }
const HeapListHashSet<Member<{{class_name}}>>& {{class_name}}s() const { return {{getter_name}}s_; }
void Add{{agent}}({{class_name}}* agent);
void Remove{{agent}}({{class_name}}* agent);
{% endfor %}
// Queries process-wide. Intended for fast-return cases only.
static bool HasAgentsGlobal(unsigned mask) {
return s_existingAgents.load(std::memory_order_acquire) & mask;
}
private:
{% for agent in agents %}
{% set class_name = agent | agent_name_to_class %}
{% set getter_name = agent | to_snake_case %}
HeapListHashSet<Member<{{class_name}}>> {{getter_name}}s_;
{% endfor %}
// Number of sinks with an enabled agent of each type, used to keep
// |s_existingAgents| up to date.
// Access must be guarded by AgentCountMutex in the source file.
{% for agent in agents %}
static unsigned s_numSinksWith{{agent}};
{% endfor %}
// Bit-set of types of enabled agent which exist in this process.
// Always a bitwise-or of AgentType enumerators.
static std::atomic<unsigned> s_existingAgents;
};
} // namespace blink
#endif // {{header_guard}}
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