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#ifndef CERT_TRANS_LOG_FILESYSTEM_OPS_H_
#define CERT_TRANS_LOG_FILESYSTEM_OPS_H_
#include <sys/types.h>
#include <string>
#include "base/macros.h"
namespace cert_trans {
// Make filesystem operations virtual so that we can override
// to simulate filesystem errors.
class FilesystemOps {
public:
virtual ~FilesystemOps() = default;
virtual int mkdir(const std::string& path, mode_t mode) = 0;
virtual int remove(const std::string& path) = 0;
virtual int rename(const std::string& old_name,
const std::string& new_name) = 0;
virtual int access(const std::string& path, int amode) = 0;
protected:
FilesystemOps() = default;
private:
DISALLOW_COPY_AND_ASSIGN(FilesystemOps);
};
class BasicFilesystemOps : public FilesystemOps {
public:
BasicFilesystemOps() = default;
int mkdir(const std::string& path, mode_t mode) override;
int remove(const std::string& path) override;
int rename(const std::string& old_name,
const std::string& new_name) override;
int access(const std::string& path, int amode) override;
};
// Fail at an operation with a given op count.
class FailingFilesystemOps : public BasicFilesystemOps {
public:
explicit FailingFilesystemOps(int fail_point);
int OpCount() const {
return op_count_;
}
int mkdir(const std::string& path, mode_t mode) override;
int remove(const std::string& path) override;
int rename(const std::string& old_name,
const std::string& new_name) override;
int access(const std::string& path, int amode) override;
private:
int op_count_;
int fail_point_;
};
} // namespace cert_trans
#endif // CERT_TRANS_LOG_FILESYSTEM_OPS_H_
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