thin-provisioning-tools/base/io_generator.h
2020-06-19 18:07:55 +08:00

56 lines
1.1 KiB
C++

#ifndef BASE_IO_GENERATOR_H
#define BASE_IO_GENERATOR_H
#include "base/io.h"
#include <memory>
//----------------------------------------------------------------
namespace base {
struct io_pattern {
enum pattern {
READ = 1 << 1,
WRITE = 1 << 2,
TRIM = 1 << 3,
RANDOM = 1 << 8,
READ_WRITE = READ | WRITE,
TRIM_WRITE = WRITE | TRIM,
RAND_READ = READ | RANDOM,
RAND_WRITE = WRITE | RANDOM,
RAND_TRIM = TRIM | RANDOM,
RAND_RW = READ_WRITE | RANDOM,
RAND_TW = TRIM_WRITE | RANDOM,
};
io_pattern();
io_pattern(char const *pattern);
void parse(char const *pattern);
bool is_random() const;
pattern val_;
};
struct io_generator_options {
io_pattern pattern_;
sector_t offset_;
sector_t block_size_;
sector_t size_;
sector_t io_size_;
};
class io_generator {
public:
typedef std::shared_ptr<io_generator> ptr;
virtual bool has_next() = 0;
virtual void next(base::io &next_io) = 0;
};
io_generator::ptr
create_io_generator(io_generator_options const &opts);
}
//----------------------------------------------------------------
#endif