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