lbry-rocksdb/rocksdb/merge_operator.pxd

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2014-01-13 19:52:22 +01:00
from libcpp.string cimport string
from libcpp cimport bool as cpp_bool
from libcpp.deque cimport deque
from slice_ cimport Slice
from logger cimport Logger
cdef extern from "rocksdb/merge_operator.h" namespace "rocksdb":
cdef cppclass MergeOperator:
pass
ctypedef cpp_bool (*merge_func)(
void*,
const Slice&,
const Slice*,
const Slice&,
string*,
Logger*)
ctypedef cpp_bool (*full_merge_func)(
void* ctx,
const Slice& key,
const Slice* existing_value,
const deque[string]& operand_list,
string* new_value,
Logger* logger)
ctypedef cpp_bool (*partial_merge_func)(
void* ctx,
const Slice& key,
const Slice& left_op,
const Slice& right_op,
string* new_value,
Logger* logger)
cdef extern from "cpp/merge_operator_wrapper.hpp" namespace "py_rocks":
cdef cppclass AssociativeMergeOperatorWrapper:
AssociativeMergeOperatorWrapper(string, void*, merge_func) nogil except+
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cdef cppclass MergeOperatorWrapper:
MergeOperatorWrapper(
string,
void*,
void*,
full_merge_func,
partial_merge_func) nogil except+