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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <tests/spi/memfiletestutils.h>
#include <tests/spi/logginglazyfile.h>
namespace storage {
namespace memfile {
class SimulatedFailureLazyFile : public vespalib::LazyFile
{
mutable int _readOpsBeforeFailure;
mutable int _writeOpsBeforeFailure;
public:
class Factory : public Environment::LazyFileFactory {
public:
Factory()
: _readOpsBeforeFailure(-1),
_writeOpsBeforeFailure(0)
{ }
vespalib::LazyFile::UP createFile(const std::string& fileName) const override;
void setReadOpsBeforeFailure(int ops) {
_readOpsBeforeFailure = ops;
}
void setWriteOpsBeforeFailure(int ops) {
_writeOpsBeforeFailure = ops;
}
private:
int _readOpsBeforeFailure;
int _writeOpsBeforeFailure;
};
SimulatedFailureLazyFile(
const std::string& filename,
int flags,
int readOpsBeforeFailure,
int writeOpsBeforeFailure);
off_t write(const void *buf, size_t bufsize, off_t offset) override;
size_t read(void *buf, size_t bufsize, off_t offset) const override;
};
} // ns memfile
} // ns storage
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