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// Copyright 2017 The Chromium Authors
// 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 sink_class_header = (header | to_singular) + "_sink" %}
{% for file in files|sort %}
#include "{{output_path_in_gen_dir}}{{file.name}}_inl.h"
{% endfor %}
#include "{{output_path_in_gen_dir}}{{sink_class_header}}.h"
{% for agent in agents|sort %}
#include "{{agent | agent_name_to_include}}"
{% endfor %}
#include "base/synchronization/lock.h"
namespace blink {
namespace {
base::Lock& AgentCountLock() {
DEFINE_THREAD_SAFE_STATIC_LOCAL(base::Lock, lock, ());
return lock;
}
} // namespace
// static
std::atomic<unsigned> {{sink_class}}::s_existingAgents;
{{sink_class}}::{{sink_class}}() {}
{{sink_class}}::~{{sink_class}}() {
base::AutoLock locker(AgentCountLock());
{% for agent in agents|sort %}
if (Has{{agent}}s() && --s_numSinksWith{{agent}} == 0)
s_existingAgents &= ~k{{agent}};
{% endfor %}
}
{% for agent in agents|sort %}
{% set class_name = agent | agent_name_to_class %}
{% set getter_name = agent | to_snake_case %}
// static
unsigned {{sink_class}}::s_numSinksWith{{agent}} = 0;
void {{sink_class}}::Add{{agent}}({{class_name}}* agent) {
bool already_had_agent = Has{{agent}}s();
{{getter_name}}s_.AddAgent(agent);
if (!already_had_agent) {
base::AutoLock locker(AgentCountLock());
if (++s_numSinksWith{{agent}} == 1)
s_existingAgents |= k{{agent}};
}
DCHECK(HasAgentsGlobal(k{{agent}}));
}
void {{sink_class}}::Remove{{agent}}({{class_name}}* agent) {
if (!Has{{agent}}s())
return;
{{getter_name}}s_.RemoveAgent(agent);
if (!Has{{agent}}s()) {
base::AutoLock locker(AgentCountLock());
if (--s_numSinksWith{{agent}} == 0)
s_existingAgents &= ~k{{agent}};
}
if (Has{{agent}}s())
DCHECK(HasAgentsGlobal(k{{agent}}));
}
{% endfor -%}
void {{sink_class}}::Trace(Visitor* visitor) const
{
{% for agent in agents|sort %}
{% set getter_name = agent | to_snake_case %}
visitor->Trace({{getter_name}}s_);
{% endfor %}
}
namespace probe {
{% macro params_list(probe) -%}
{%- for param in probe.params %}
{%- if probe.is_scoped and param.is_reference %}
std::reference_wrapper<std::remove_reference_t<{{param.type}}>>
{%- else %}
{{param.type}}
{%- endif %}
{{param.name}}
{%- if not loop.last %}, {% endif -%}
{%- endfor -%}
{%- endmacro %}
{% macro probe_body(probe, common_name) %}
{% set agent_probe_name = method_name(common_name or probe.name) %}
if (!probe_sink)
return;
{% for agent in probe.agents|sort %}
{% set class_name = agent | agent_name_to_class %}
if (probe_sink->Has{{agent}}s()) {
probe_sink->{{class_name}}s().ForEachAgent([&]({{class_name}}* agent) {
agent->{{agent_probe_name}}({{caller()}});
});
}
{% endfor %}
{% endmacro -%}
{% for file in files|sort %}
{% for probe in file.declarations %}
{% if probe.is_scoped %}
{{probe.name}}::{{probe.name}}({{ params_list(probe) }}) :
{% for param in probe.params %}
{{param.name}}({{param.name}})
{%- if not loop.last %},
{% endif %}
{% endfor %} {
if (!{{sink_class}}::HasAgentsGlobal(
{%- for agent in probe.agents|sort %}
{% if not loop.first %} | {% endif -%}
{{sink_class}}::k{{agent}}
{%- endfor %}))
return;
probe_sink = To{{sink_class}}({{probe.params[0].name}});
{% call probe_body(probe, "Will") %}*this{% endcall %}
}
{{probe.name}}::~{{probe.name}}() {
{% call probe_body(probe, "Did") %}*this{% endcall %}
}
{% else -%}
void {{probe.name}}Impl({{ params_list(probe) }}) {
{{sink_class}}* probe_sink = To{{sink_class}}({{probe.params[0].name}});
{% call probe_body(probe, "") %}
{%- for param in probe.params %}
{%- if not loop.first or "Keep" in param.options -%}
{{param.name}}
{%- if not loop.last %}, {% endif -%}
{%- endif -%}
{%- endfor %}
{%- endcall %}
}
{% endif %}
{% endfor %}
{% endfor %}
} // namespace probe
} // namespace blink
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