52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
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#include <string>
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#include "rocksdb/slice_transform.h"
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using std::string;
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using rocksdb::SliceTransform;
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using rocksdb::Slice;
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namespace py_rocks {
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class SliceTransformWrapper: public SliceTransform {
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public:
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typedef Slice (*transform_func)(void*, const Slice&);
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typedef bool (*in_domain_func)(void*, const Slice&);
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typedef bool (*in_range_func)(void*, const Slice&);
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SliceTransformWrapper(
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string name,
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void* ctx,
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transform_func transfrom_callback,
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in_domain_func in_domain_callback,
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in_range_func in_range_callback):
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name(name),
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ctx(ctx),
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transfrom_callback(transfrom_callback),
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in_domain_callback(in_domain_callback),
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in_range_callback(in_range_callback)
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{}
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const char* Name() const {
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return this->name.c_str();
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}
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Slice Transform(const Slice& src) const {
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return this->transfrom_callback(this->ctx, src);
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}
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bool InDomain(const Slice& src) const {
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return this->in_domain_callback(this->ctx, src);
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}
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bool InRange(const Slice& dst) const {
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return this->in_range_callback(this->ctx, dst);
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}
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private:
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string name;
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void* ctx;
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transform_func transfrom_callback;
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in_domain_func in_domain_callback;
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in_range_func in_range_callback;
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};
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}
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