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Diffstat (limited to 'src/database-redis.cpp')
| -rw-r--r-- | src/database-redis.cpp | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/src/database-redis.cpp b/src/database-redis.cpp deleted file mode 100644 index 096ea504d..000000000 --- a/src/database-redis.cpp +++ /dev/null @@ -1,203 +0,0 @@ -/* -Minetest -Copyright (C) 2014 celeron55, Perttu Ahola <celeron55@gmail.com> - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU Lesser General Public License as published by -the Free Software Foundation; either version 2.1 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU Lesser General Public License for more details. - -You should have received a copy of the GNU Lesser General Public License along -with this program; if not, write to the Free Software Foundation, Inc., -51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. -*/ - -#include "config.h" - -#if USE_REDIS - -#include "database-redis.h" - -#include "settings.h" -#include "log.h" -#include "exceptions.h" -#include "util/string.h" - -#include <hiredis.h> -#include <cassert> - - -Database_Redis::Database_Redis(Settings &conf) -{ - std::string tmp; - try { - tmp = conf.get("redis_address"); - hash = conf.get("redis_hash"); - } catch (SettingNotFoundException &) { - throw SettingNotFoundException("Set redis_address and " - "redis_hash in world.mt to use the redis backend"); - } - const char *addr = tmp.c_str(); - int port = conf.exists("redis_port") ? conf.getU16("redis_port") : 6379; - // if redis_address contains '/' assume unix socket, else hostname/ip - ctx = tmp.find('/') != std::string::npos ? redisConnectUnix(addr) : redisConnect(addr, port); - if (!ctx) { - throw DatabaseException("Cannot allocate redis context"); - } else if (ctx->err) { - std::string err = std::string("Connection error: ") + ctx->errstr; - redisFree(ctx); - throw DatabaseException(err); - } - if (conf.exists("redis_password")) { - tmp = conf.get("redis_password"); - redisReply *reply = static_cast<redisReply *>(redisCommand(ctx, "AUTH %s", tmp.c_str())); - if (!reply) - throw DatabaseException("Redis authentication failed"); - if (reply->type == REDIS_REPLY_ERROR) { - std::string err = "Redis authentication failed: " + std::string(reply->str, reply->len); - freeReplyObject(reply); - throw DatabaseException(err); - } - freeReplyObject(reply); - } -} - -Database_Redis::~Database_Redis() -{ - redisFree(ctx); -} - -void Database_Redis::beginSave() { - redisReply *reply = static_cast<redisReply *>(redisCommand(ctx, "MULTI")); - if (!reply) { - throw DatabaseException(std::string( - "Redis command 'MULTI' failed: ") + ctx->errstr); - } - freeReplyObject(reply); -} - -void Database_Redis::endSave() { - redisReply *reply = static_cast<redisReply *>(redisCommand(ctx, "EXEC")); - if (!reply) { - throw DatabaseException(std::string( - "Redis command 'EXEC' failed: ") + ctx->errstr); - } - freeReplyObject(reply); -} - -bool Database_Redis::saveBlock(const v3s16 &pos, const std::string &data) -{ - std::string tmp = i64tos(getBlockAsInteger(pos)); - - redisReply *reply = static_cast<redisReply *>(redisCommand(ctx, "HSET %s %s %b", - hash.c_str(), tmp.c_str(), data.c_str(), data.size())); - if (!reply) { - warningstream << "saveBlock: redis command 'HSET' failed on " - "block " << PP(pos) << ": " << ctx->errstr << std::endl; - freeReplyObject(reply); - return false; - } - - if (reply->type == REDIS_REPLY_ERROR) { - warningstream << "saveBlock: saving block " << PP(pos) - << " failed: " << std::string(reply->str, reply->len) << std::endl; - freeReplyObject(reply); - return false; - } - - freeReplyObject(reply); - return true; -} - -void Database_Redis::loadBlock(const v3s16 &pos, std::string *block) -{ - std::string tmp = i64tos(getBlockAsInteger(pos)); - redisReply *reply = static_cast<redisReply *>(redisCommand(ctx, - "HGET %s %s", hash.c_str(), tmp.c_str())); - - if (!reply) { - throw DatabaseException(std::string( - "Redis command 'HGET %s %s' failed: ") + ctx->errstr); - } - - switch (reply->type) { - case REDIS_REPLY_STRING: { - *block = std::string(reply->str, reply->len); - // std::string copies the memory so this won't cause any problems - freeReplyObject(reply); - return; - } - case REDIS_REPLY_ERROR: { - std::string errstr(reply->str, reply->len); - freeReplyObject(reply); - errorstream << "loadBlock: loading block " << PP(pos) - << " failed: " << errstr << std::endl; - throw DatabaseException(std::string( - "Redis command 'HGET %s %s' errored: ") + errstr); - } - case REDIS_REPLY_NIL: { - *block = ""; - // block not found in database - freeReplyObject(reply); - return; - } - } - - errorstream << "loadBlock: loading block " << PP(pos) - << " returned invalid reply type " << reply->type - << ": " << std::string(reply->str, reply->len) << std::endl; - freeReplyObject(reply); - throw DatabaseException(std::string( - "Redis command 'HGET %s %s' gave invalid reply.")); -} - -bool Database_Redis::deleteBlock(const v3s16 &pos) -{ - std::string tmp = i64tos(getBlockAsInteger(pos)); - - redisReply *reply = static_cast<redisReply *>(redisCommand(ctx, - "HDEL %s %s", hash.c_str(), tmp.c_str())); - if (!reply) { - throw DatabaseException(std::string( - "Redis command 'HDEL %s %s' failed: ") + ctx->errstr); - } else if (reply->type == REDIS_REPLY_ERROR) { - warningstream << "deleteBlock: deleting block " << PP(pos) - << " failed: " << std::string(reply->str, reply->len) << std::endl; - freeReplyObject(reply); - return false; - } - - freeReplyObject(reply); - return true; -} - -void Database_Redis::listAllLoadableBlocks(std::vector<v3s16> &dst) -{ - redisReply *reply = static_cast<redisReply *>(redisCommand(ctx, "HKEYS %s", hash.c_str())); - if (!reply) { - throw DatabaseException(std::string( - "Redis command 'HKEYS %s' failed: ") + ctx->errstr); - } - switch (reply->type) { - case REDIS_REPLY_ARRAY: - dst.reserve(reply->elements); - for (size_t i = 0; i < reply->elements; i++) { - assert(reply->element[i]->type == REDIS_REPLY_STRING); - dst.push_back(getIntegerAsBlock(stoi64(reply->element[i]->str))); - } - break; - case REDIS_REPLY_ERROR: - throw DatabaseException(std::string( - "Failed to get keys from database: ") + - std::string(reply->str, reply->len)); - } - freeReplyObject(reply); -} - -#endif // USE_REDIS - |