leveldb_filterpolicy_t Struct Reference

Inheritance diagram for leveldb_filterpolicy_t:

Collaboration diagram for leveldb_filterpolicy_t:

Public Member Functions
virtual	~leveldb_filterpolicy_t ()
virtual const char *	Name () const
virtual void	CreateFilter (const Slice *keys, int n, std::string *dst) const
virtual bool	KeyMayMatch (const Slice &key, const Slice &filter) const
Public Member Functions inherited from leveldb::FilterPolicy
virtual	~FilterPolicy ()

Public Attributes
void *	state_
void(*	destructor_ )(void *)
const char *(*	name_ )(void *)
char *(*	create_ )(void *, const char *const *key_array, const size_t *key_length_array, int num_keys, size_t *filter_length)
unsigned char(*	key_match_ )(void *, const char *key, size_t length, const char *filter, size_t filter_length)

Detailed Description

Definition at line 86 of file c.cc.

Constructor & Destructor Documentation

~leveldb_filterpolicy_t()

virtual leveldb_filterpolicy_t::~leveldb_filterpolicy_t ( )

inlinevirtual

Definition at line 100 of file c.cc.

                                    {
    (*destructor_)(state_);
  }

Member Function Documentation

CreateFilter()

virtual void leveldb_filterpolicy_t::CreateFilter ( const Slice *  keys, int  n, std::string *  dst  ) const

inlinevirtual

Implements leveldb::FilterPolicy.

Definition at line 108 of file c.cc.

                                                                            {
    std::vector<const char*> key_pointers(n);
    std::vector<size_t> key_sizes(n);
    for (int i = 0; i < n; i++) {
      key_pointers[i] = keys[i].data();
      key_sizes[i] = keys[i].size();
    }
    size_t len;
    char* filter = (*create_)(state_, &key_pointers[0], &key_sizes[0], n, &len);
    dst->append(filter, len);
    free(filter);
  }

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KeyMayMatch()

virtual bool leveldb_filterpolicy_t::KeyMayMatch ( const Slice &  key, const Slice &  filter  ) const

inlinevirtual

Implements leveldb::FilterPolicy.

Definition at line 121 of file c.cc.

                                                                        {
    return (*key_match_)(state_, key.data(), key.size(),
                         filter.data(), filter.size());
  }

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Name()

virtual const char* leveldb_filterpolicy_t::Name ( ) const

inlinevirtual

Implements leveldb::FilterPolicy.

Definition at line 104 of file c.cc.

                                   {
    return (*name_)(state_);
  }

Member Data Documentation

create_

char*(* leveldb_filterpolicy_t::create_) (void *, const char *const *key_array, const size_t *key_length_array, int num_keys, size_t *filter_length)

Definition at line 90 of file c.cc.

destructor_

void(* leveldb_filterpolicy_t::destructor_) (void *)

Definition at line 88 of file c.cc.

key_match_

unsigned char(* leveldb_filterpolicy_t::key_match_) (void *, const char *key, size_t length, const char *filter, size_t filter_length)

Definition at line 95 of file c.cc.

name_

const char*(* leveldb_filterpolicy_t::name_) (void *)

Definition at line 89 of file c.cc.

state_

void* leveldb_filterpolicy_t::state_

Definition at line 87 of file c.cc.

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The documentation for this struct was generated from the following file:

• db/c.cc