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C API: Add support for compaction filter factories (v1)

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This commit is contained in:
Evan Shaw 2014-07-04 11:52:22 +12:00
parent 0bf5589c74
commit 91bede79cc
2 changed files with 77 additions and 0 deletions
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54
db/c.cc
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@ -35,6 +35,7 @@ using rocksdb::ColumnFamilyDescriptor;
using rocksdb::ColumnFamilyHandle;
using rocksdb::ColumnFamilyOptions;
using rocksdb::CompactionFilter;
using rocksdb::CompactionFilterFactory;
using rocksdb::Comparator;
using rocksdb::CompressionType;
using rocksdb::DB;
@ -84,6 +85,10 @@ struct rocksdb_cache_t { shared_ptr<Cache> rep; };
struct rocksdb_livefiles_t { std::vector<LiveFileMetaData> rep; };
struct rocksdb_column_family_handle_t { ColumnFamilyHandle* rep; };
struct rocksdb_compactionfiltercontext_t {
CompactionFilter::Context rep;
};
struct rocksdb_compactionfilter_t : public CompactionFilter {
void* state_;
void (*destructor_)(void*);
@ -127,6 +132,26 @@ struct rocksdb_compactionfilter_t : public CompactionFilter {
}
};
struct rocksdb_compactionfilterfactory_t : public CompactionFilterFactory {
void* state_;
void (*destructor_)(void*);
rocksdb_compactionfilter_t* (*create_compaction_filter_)(
void*, rocksdb_compactionfiltercontext_t* context);
const char* (*name_)(void*);
virtual ~rocksdb_compactionfilterfactory_t() { (*destructor_)(state_); }
virtual std::unique_ptr<CompactionFilter> CreateCompactionFilter(
const CompactionFilter::Context& context) {
rocksdb_compactionfiltercontext_t ccontext;
ccontext.rep = context;
CompactionFilter* cf = (*create_compaction_filter_)(state_, &ccontext);
return std::unique_ptr<CompactionFilter>(cf);
}
virtual const char* Name() const { return (*name_)(state_); }
};
struct rocksdb_comparator_t : public Comparator {
void* state_;
void (*destructor_)(void*);
@ -1445,6 +1470,35 @@ void rocksdb_compactionfilter_destroy(rocksdb_compactionfilter_t* filter) {
delete filter;
}
unsigned char rocksdb_compactionfiltercontext_is_full_compaction(
rocksdb_compactionfiltercontext_t* context) {
return context->rep.is_full_compaction;
}
unsigned char rocksdb_compactionfiltercontext_is_manual_compaction(
rocksdb_compactionfiltercontext_t* context) {
return context->rep.is_manual_compaction;
}
rocksdb_compactionfilterfactory_t* rocksdb_compactionfilterfactory_create(
void* state, void (*destructor)(void*),
rocksdb_compactionfilter_t* (*create_compaction_filter)(
void*, rocksdb_compactionfiltercontext_t* context),
const char* (*name)(void*)) {
rocksdb_compactionfilterfactory_t* result =
new rocksdb_compactionfilterfactory_t;
result->state_ = state;
result->destructor_ = destructor;
result->create_compaction_filter_ = create_compaction_filter;
result->name_ = name;
return result;
}
void rocksdb_compactionfilterfactory_destroy(
rocksdb_compactionfilterfactory_t* factory) {
delete factory;
}
rocksdb_comparator_t* rocksdb_comparator_create(
void* state,
void (*destructor)(void*),

23
include/rocksdb/c.h
View File

@ -57,6 +57,10 @@ extern "C" {
typedef struct rocksdb_t rocksdb_t;
typedef struct rocksdb_cache_t rocksdb_cache_t;
typedef struct rocksdb_compactionfilter_t rocksdb_compactionfilter_t;
typedef struct rocksdb_compactionfiltercontext_t
rocksdb_compactionfiltercontext_t;
typedef struct rocksdb_compactionfilterfactory_t
rocksdb_compactionfilterfactory_t;
typedef struct rocksdb_comparator_t rocksdb_comparator_t;
typedef struct rocksdb_env_t rocksdb_env_t;
typedef struct rocksdb_filelock_t rocksdb_filelock_t;
@ -531,6 +535,25 @@ extern rocksdb_compactionfilter_t* rocksdb_compactionfilter_create(
const char* (*name)(void*));
extern void rocksdb_compactionfilter_destroy(rocksdb_compactionfilter_t*);
/* Compaction Filter Context */
extern unsigned char rocksdb_compactionfiltercontext_is_full_compaction(
rocksdb_compactionfiltercontext_t* context);
extern unsigned char rocksdb_compactionfiltercontext_is_manual_compaction(
rocksdb_compactionfiltercontext_t* context);
/* Compaction Filter Factory */
extern rocksdb_compactionfilterfactory_t*
rocksdb_compactionfilterfactory_create(
void* state, void (*destructor)(void*),
rocksdb_compactionfilter_t* (*create_compaction_filter)(
void*, rocksdb_compactionfiltercontext_t* context),
const char* (*name)(void*));
extern void rocksdb_compactionfilterfactory_destroy(
rocksdb_compactionfilterfactory_t*);
/* Comparator */
extern rocksdb_comparator_t* rocksdb_comparator_create(