ResourceUsageThread.h [plain text]
#ifndef ResourceUsageThread_h
#define ResourceUsageThread_h
#if ENABLE(RESOURCE_USAGE)
#include "ResourceUsageData.h"
#include <array>
#include <functional>
#include <wtf/Condition.h>
#include <wtf/HashMap.h>
#include <wtf/Lock.h>
#include <wtf/NeverDestroyed.h>
#include <wtf/Noncopyable.h>
namespace JSC {
class VM;
}
namespace WebCore {
class ResourceUsageThread {
WTF_MAKE_NONCOPYABLE(ResourceUsageThread);
public:
static void addObserver(void* key, std::function<void (const ResourceUsageData&)>);
static void removeObserver(void* key);
private:
friend NeverDestroyed<ResourceUsageThread>;
ResourceUsageThread();
static ResourceUsageThread& singleton();
void waitUntilObservers();
void notifyObservers(ResourceUsageData&&);
void createThreadIfNeeded();
static void threadCallback(void* scrollingThread);
void threadBody();
void platformThreadBody(JSC::VM*, ResourceUsageData&);
ThreadIdentifier m_threadIdentifier { 0 };
Lock m_lock;
Condition m_condition;
HashMap<void*, std::function<void (const ResourceUsageData&)>> m_observers;
JSC::VM* m_vm { nullptr };
};
#if PLATFORM(COCOA)
struct TagInfo {
TagInfo() { }
size_t dirty { 0 };
size_t reclaimable { 0 };
};
const char* displayNameForVMTag(unsigned);
std::array<TagInfo, 256> pagesPerVMTag();
void logFootprintComparison(const std::array<TagInfo, 256>&, const std::array<TagInfo, 256>&);
#endif
}
#endif // ENABLE(RESOURCE_USAGE)
#endif // ResourceUsageThread_h