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95 lines
2.4 KiB
C++
95 lines
2.4 KiB
C++
// +build leveldb
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#include "leveldb_ext.h"
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#include <stdlib.h>
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//#include <string>
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//#include "leveldb/db.h"
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//using namespace leveldb;
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extern "C" {
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// static bool SaveError(char** errptr, const Status& s) {
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// assert(errptr != NULL);
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// if (s.ok()) {
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// return false;
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// } else if (*errptr == NULL) {
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// *errptr = strdup(s.ToString().c_str());
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// } else {
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// free(*errptr);
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// *errptr = strdup(s.ToString().c_str());
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// }
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// return true;
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// }
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// void* leveldb_get_ext(
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// leveldb_t* db,
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// const leveldb_readoptions_t* options,
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// const char* key, size_t keylen,
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// char** valptr,
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// size_t* vallen,
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// char** errptr) {
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// std::string *tmp = new(std::string);
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// //very tricky, maybe changed with c++ leveldb upgrade
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// Status s = (*(DB**)db)->Get(*(ReadOptions*)options, Slice(key, keylen), tmp);
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// if (s.ok()) {
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// *valptr = (char*)tmp->data();
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// *vallen = tmp->size();
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// } else {
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// delete(tmp);
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// tmp = NULL;
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// *valptr = NULL;
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// *vallen = 0;
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// if (!s.IsNotFound()) {
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// SaveError(errptr, s);
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// }
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// }
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// return tmp;
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// }
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// void leveldb_get_free_ext(void* context) {
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// std::string* s = (std::string*)context;
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// delete(s);
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// }
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unsigned char leveldb_iter_seek_to_first_ext(leveldb_iterator_t* iter) {
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leveldb_iter_seek_to_first(iter);
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return leveldb_iter_valid(iter);
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}
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unsigned char leveldb_iter_seek_to_last_ext(leveldb_iterator_t* iter) {
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leveldb_iter_seek_to_last(iter);
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return leveldb_iter_valid(iter);
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}
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unsigned char leveldb_iter_seek_ext(leveldb_iterator_t* iter, const char* k, size_t klen) {
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leveldb_iter_seek(iter, k, klen);
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return leveldb_iter_valid(iter);
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}
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unsigned char leveldb_iter_next_ext(leveldb_iterator_t* iter) {
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leveldb_iter_next(iter);
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return leveldb_iter_valid(iter);
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}
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unsigned char leveldb_iter_prev_ext(leveldb_iterator_t* iter) {
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leveldb_iter_prev(iter);
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return leveldb_iter_valid(iter);
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}
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extern void leveldb_writebatch_iterate_put(void*, const char* k, size_t klen, const char* v, size_t vlen);
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extern void leveldb_writebatch_iterate_delete(void*, const char* k, size_t klen);
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void leveldb_writebatch_iterate_ext(leveldb_writebatch_t* w, void *p) {
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leveldb_writebatch_iterate(w, p,
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leveldb_writebatch_iterate_put, leveldb_writebatch_iterate_delete);
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}
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} |