winamp/Src/replicant/nu/ProgressTracker.h
2024-09-24 14:54:57 +02:00

25 lines
675 B
C++

#pragma once
#include "foundation/types.h"
#include <map>
#include "nu/AutoLock.h"
/* Helper class for managing valid chunks in non-sequential scenarios
e.g. progressive downloading */
class ProgressTracker
{
public:
static const uint64_t null_position;
ProgressTracker();
void Write(uint64_t bytes_written);
bool Valid(uint64_t requested_position, uint64_t requested_end, uint64_t *available=0);
bool Seek(uint64_t requested_position, uint64_t requested_end, uint64_t *new_start, uint64_t *new_end);
void Dump();
typedef std::map<uint64_t, uint64_t> ChunkList;
ChunkList chunks;
uint64_t current_chunk;
uint64_t current_position;
nu::LockGuard list_guard;
};