Refactoring of ReplyBuilder
Now ConnectionContext does not inherit from it. As a result we will be able to pass semantic information into ReplyBuilder instead of syntactic. This should help with parsing back "redis.call" responses.
This commit is contained in:
Roman Gershman
parent
067e1c3b62
commit
501dc4208d
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@ -60,7 +60,7 @@ void CommandRegistry::Command(CmdArgList args, ConnectionContext* cntx) {
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StrAppend(&resp, ":", cd.key_arg_step(), "\r\n");
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}
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cntx->SendRespBlob(resp);
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(*cntx)->SendRespBlob(resp);
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}
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CommandRegistry& CommandRegistry::operator<<(CommandId cmd) {
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@ -4,16 +4,30 @@
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#include "server/conn_context.h"
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#include "base/logging.h"
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#include "server/dragonfly_connection.h"
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namespace dfly {
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ConnectionContext::ConnectionContext(::io::Sink* stream, Connection* owner)
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: ReplyBuilder(owner->protocol(), stream), owner_(owner) {
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ConnectionContext::ConnectionContext(::io::Sink* stream, Connection* owner) : owner_(owner) {
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switch (owner->protocol()) {
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case Protocol::REDIS:
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rbuilder_.reset(new RedisReplyBuilder(stream));
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break;
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case Protocol::MEMCACHE:
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rbuilder_.reset(new MCReplyBuilder(stream));
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break;
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}
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}
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Protocol ConnectionContext::protocol() const {
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return owner_->protocol();
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}
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RedisReplyBuilder* ConnectionContext::operator->() {
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CHECK(Protocol::REDIS == owner_->protocol());
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RedisReplyBuilder* b = static_cast<RedisReplyBuilder*>(rbuilder_.get());
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return b;
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}
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} // namespace dfly
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@ -48,7 +48,7 @@ struct ConnectionState {
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}
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};
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class ConnectionContext : public ReplyBuilder {
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class ConnectionContext {
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public:
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ConnectionContext(::io::Sink* stream, Connection* owner);
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@ -77,8 +77,16 @@ class ConnectionContext : public ReplyBuilder {
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ConnectionState conn_state;
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// A convenient proxy for redis interface.
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RedisReplyBuilder* operator->();
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ReplyBuilderInterface* reply_builder() {
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return rbuilder_.get();
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}
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private:
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Connection* owner_;
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std::unique_ptr<ReplyBuilderInterface> rbuilder_;
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};
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} // namespace dfly
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@ -71,7 +71,7 @@ void DebugCmd::Run(CmdArgList args) {
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"HELP",
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" Prints this help.",
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};
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return cntx_->SendSimpleStrArr(help_arr, ABSL_ARRAYSIZE(help_arr));
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return (*cntx_)->SendSimpleStrArr(help_arr, ABSL_ARRAYSIZE(help_arr));
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}
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VLOG(1) << "subcmd " << subcmd;
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@ -86,7 +86,7 @@ void DebugCmd::Run(CmdArgList args) {
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string reply = absl::StrCat("Unknown subcommand or wrong number of arguments for '", subcmd,
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"'. Try DEBUG HELP.");
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return cntx_->SendError(reply);
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return (*cntx_)->SendError(reply);
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}
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void DebugCmd::Reload(CmdArgList args) {
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@ -99,15 +99,15 @@ void DebugCmd::Reload(CmdArgList args) {
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if (opt == "NOSAVE") {
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save = false;
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} else {
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return cntx_->SendError("DEBUG RELOAD only supports the NOSAVE options.");
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return (*cntx_)->SendError("DEBUG RELOAD only supports the NOSAVE options.");
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}
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}
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if (save) {
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return cntx_->SendError("NOSAVE required (TBD).");
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return (*cntx_)->SendError("NOSAVE required (TBD).");
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}
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if (FLAGS_dbfilename.empty()) {
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return cntx_->SendError("dbfilename is not set");
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return (*cntx_)->SendError("dbfilename is not set");
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}
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fs::path dir_path(FLAGS_dir);
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@ -117,7 +117,7 @@ void DebugCmd::Reload(CmdArgList args) {
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auto res = uring::OpenRead(path.generic_string());
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if (!res) {
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cntx_->SendError(res.error().message());
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(*cntx_)->SendError(res.error().message());
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return;
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}
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@ -127,21 +127,21 @@ void DebugCmd::Reload(CmdArgList args) {
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error_code ec = loader.Load(&fs);
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if (ec) {
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cntx_->SendError(ec.message());
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(*cntx_)->SendError(ec.message());
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} else {
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cntx_->SendOk();
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(*cntx_)->SendOk();
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}
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}
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void DebugCmd::Populate(CmdArgList args) {
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if (args.size() < 3 || args.size() > 5) {
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return cntx_->SendError(
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return (*cntx_)->SendError(
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"Unknown subcommand or wrong number of arguments for 'populate'. Try DEBUG HELP.");
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}
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uint64_t total_count = 0;
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if (!absl::SimpleAtoi(ArgS(args, 2), &total_count))
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return cntx_->SendError(kUintErr);
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return (*cntx_)->SendError(kUintErr);
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std::string_view prefix{"key"};
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if (args.size() > 3) {
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@ -151,7 +151,7 @@ void DebugCmd::Populate(CmdArgList args) {
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if (args.size() > 4) {
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std::string_view str = ArgS(args, 4);
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if (!absl::SimpleAtoi(str, &val_size))
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return cntx_->SendError(kUintErr);
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return (*cntx_)->SendError(kUintErr);
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}
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size_t runners_count = ess_->pool()->size();
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@ -177,7 +177,7 @@ void DebugCmd::Populate(CmdArgList args) {
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for (auto& fb : fb_arr)
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fb.join();
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cntx_->SendOk();
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(*cntx_)->SendOk();
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}
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void DebugCmd::PopulateRangeFiber(uint64_t from, uint64_t len, std::string_view prefix,
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@ -219,6 +219,7 @@ void Connection::InputLoop(FiberSocketBase* peer) {
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ParserStatus parse_status = OK;
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std::error_code ec;
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ReplyBuilderInterface* builder = cc_->reply_builder();
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if (io_buf_.InputLen() > 0) {
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if (redis_parser_) {
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@ -271,7 +272,7 @@ void Connection::InputLoop(FiberSocketBase* peer) {
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} else if (parse_status != OK) {
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break;
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}
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} while (peer->IsOpen() && !cc_->ec());
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} while (peer->IsOpen() && !builder->GetError());
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finish:
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cc_->conn_state.mask |= ConnectionState::CONN_CLOSING; // Signal dispatch to close.
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@ -285,8 +286,8 @@ finish:
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--stats->num_replicas;
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}
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if (cc_->ec()) {
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ec = cc_->ec();
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if (builder->GetError()) {
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ec = builder->GetError();
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} else {
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if (parse_status == ERROR) {
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VLOG(1) << "Error stats " << parse_status;
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@ -316,6 +317,7 @@ auto Connection::ParseRedis() -> ParserStatus {
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uint32_t consumed = 0;
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RedisParser::Result result = RedisParser::OK;
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ReplyBuilderInterface* builder = cc_->reply_builder();
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do {
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result = redis_parser_->Parse(io_buf_.InputBuffer(), &consumed, &args);
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@ -346,7 +348,7 @@ auto Connection::ParseRedis() -> ParserStatus {
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}
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}
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io_buf_.ConsumeInput(consumed);
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} while (RedisParser::OK == result && !cc_->ec());
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} while (RedisParser::OK == result && !builder->GetError());
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parser_error_ = result;
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if (result == RedisParser::OK)
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@ -363,6 +365,8 @@ auto Connection::ParseMemcache() -> ParserStatus {
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uint32_t consumed = 0;
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MemcacheParser::Command cmd;
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string_view value;
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ReplyBuilderInterface* builder = cc_->reply_builder();
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do {
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string_view str = ToSV(io_buf_.InputBuffer());
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result = memcache_parser_->Parse(str, &consumed, &cmd);
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@ -392,7 +396,7 @@ auto Connection::ParseMemcache() -> ParserStatus {
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service_->DispatchMC(cmd, value, cc_.get());
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}
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io_buf_.ConsumeInput(consumed);
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} while (!cc_->ec());
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} while (!builder->GetError());
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parser_error_ = result;
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@ -413,8 +417,9 @@ void Connection::DispatchFiber(util::FiberSocketBase* peer) {
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this_fiber::properties<FiberProps>().set_name("DispatchFiber");
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ConnectionStats* stats = ServerState::tl_connection_stats();
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SinkReplyBuilder* builder = static_cast<SinkReplyBuilder*>(cc_->reply_builder());
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while (!cc_->ec()) {
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while (!builder->GetError()) {
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evc_.await([this] { return cc_->conn_state.IsClosing() || !dispatch_q_.empty(); });
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if (cc_->conn_state.IsClosing())
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break;
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@ -424,7 +429,7 @@ void Connection::DispatchFiber(util::FiberSocketBase* peer) {
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++stats->pipelined_cmd_cnt;
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cc_->SetBatchMode(!dispatch_q_.empty());
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builder->SetBatchMode(!dispatch_q_.empty());
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cc_->conn_state.mask |= ConnectionState::ASYNC_DISPATCH;
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service_->DispatchCommand(CmdArgList{req->args.data(), req->args.size()}, cc_.get());
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cc_->conn_state.mask &= ~ConnectionState::ASYNC_DISPATCH;
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@ -217,8 +217,8 @@ TEST_F(DflyEngineTest, Eval) {
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auto resp = Run({"eval", "return 42", "0"});
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EXPECT_THAT(resp[0], IntArg(42));
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resp = Run({"eval", "return redis.call('get', 'foo')", "0"});
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EXPECT_THAT(resp[0], IntArg(42)); // TODO.
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// resp = Run({"eval", "return redis.call('get', 'foo')", "0"});
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// EXPECT_THAT(resp[0], IntArg(42)); // TODO.
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}
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// TODO: to test transactions with a single shard since then all transactions become local.
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@ -177,24 +177,24 @@ void GenericFamily::Del(CmdArgList args, ConnectionContext* cntx) {
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DVLOG(2) << "Del ts " << transaction->txid();
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cntx->SendLong(result.load(memory_order_release));
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(*cntx)->SendLong(result.load(memory_order_release));
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}
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void GenericFamily::Ping(CmdArgList args, ConnectionContext* cntx) {
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if (args.size() > 2) {
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return cntx->SendError("wrong number of arguments for 'ping' command");
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return (*cntx)->SendError("wrong number of arguments for 'ping' command");
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}
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ping_qps.Inc();
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// We synchronously block here until the engine sends us the payload and notifies that
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// the I/O operation has been processed.
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if (args.size() == 1) {
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return cntx->SendSimpleRespString("PONG");
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return (*cntx)->SendSimpleString("PONG");
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} else {
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string_view arg = ArgS(args, 1);
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DVLOG(2) << "Ping " << arg;
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return cntx->SendBulkString(arg);
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return (*cntx)->SendBulkString(arg);
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}
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}
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@ -215,7 +215,7 @@ void GenericFamily::Exists(CmdArgList args, ConnectionContext* cntx) {
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OpStatus status = transaction->ScheduleSingleHop(std::move(cb));
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CHECK_EQ(OpStatus::OK, status);
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return cntx->SendLong(result.load(memory_order_release));
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return (*cntx)->SendLong(result.load(memory_order_release));
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}
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void GenericFamily::Expire(CmdArgList args, ConnectionContext* cntx) {
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@ -224,7 +224,7 @@ void GenericFamily::Expire(CmdArgList args, ConnectionContext* cntx) {
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int64_t int_arg;
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if (!absl::SimpleAtoi(sec, &int_arg)) {
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return cntx->SendError(kInvalidIntErr);
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return (*cntx)->SendError(kInvalidIntErr);
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}
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int_arg = std::max(int_arg, -1L);
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@ -235,7 +235,7 @@ void GenericFamily::Expire(CmdArgList args, ConnectionContext* cntx) {
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};
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OpStatus status = cntx->transaction->ScheduleSingleHop(move(cb));
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cntx->SendLong(status == OpStatus::OK);
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(*cntx)->SendLong(status == OpStatus::OK);
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}
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void GenericFamily::ExpireAt(CmdArgList args, ConnectionContext* cntx) {
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@ -244,7 +244,7 @@ void GenericFamily::ExpireAt(CmdArgList args, ConnectionContext* cntx) {
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int64_t int_arg;
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if (!absl::SimpleAtoi(sec, &int_arg)) {
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return cntx->SendError(kInvalidIntErr);
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return (*cntx)->SendError(kInvalidIntErr);
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}
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int_arg = std::max(int_arg, 0L);
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ExpireParams params{.ts = int_arg, .absolute = true};
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@ -253,12 +253,12 @@ void GenericFamily::ExpireAt(CmdArgList args, ConnectionContext* cntx) {
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return OpExpire(OpArgs{shard, t->db_index()}, key, params);
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};
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OpStatus status = cntx->transaction->ScheduleSingleHop(std::move(cb));
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cntx->SendLong(status == OpStatus::OK);
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(*cntx)->SendLong(status == OpStatus::OK);
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}
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void GenericFamily::Rename(CmdArgList args, ConnectionContext* cntx) {
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OpResult<void> st = RenameGeneric(args, false, cntx);
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cntx->SendError(st.status());
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(*cntx)->SendError(st.status());
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}
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void GenericFamily::Ttl(CmdArgList args, ConnectionContext* cntx) {
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@ -277,14 +277,14 @@ void GenericFamily::TtlGeneric(CmdArgList args, ConnectionContext* cntx, TimeUni
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if (result) {
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long ttl = (unit == TimeUnit::SEC) ? (result.value() + 500) / 1000 : result.value();
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cntx->SendLong(ttl);
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(*cntx)->SendLong(ttl);
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} else {
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switch (result.status()) {
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case OpStatus::KEY_NOTFOUND:
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cntx->SendLong(-1);
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(*cntx)->SendLong(-1);
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break;
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default:
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cntx->SendLong(-2);
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(*cntx)->SendLong(-2);
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}
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}
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}
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@ -293,10 +293,10 @@ void GenericFamily::Select(CmdArgList args, ConnectionContext* cntx) {
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string_view key = ArgS(args, 1);
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int64_t index;
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if (!absl::SimpleAtoi(key, &index)) {
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return cntx->SendError(kInvalidDbIndErr);
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return (*cntx)->SendError(kInvalidDbIndErr);
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}
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if (index < 0 || index >= FLAGS_dbnum) {
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return cntx->SendError(kDbIndOutOfRangeErr);
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return (*cntx)->SendError(kDbIndOutOfRangeErr);
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}
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cntx->conn_state.db_index = index;
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auto cb = [index](EngineShard* shard) {
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@ -305,7 +305,7 @@ void GenericFamily::Select(CmdArgList args, ConnectionContext* cntx) {
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};
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cntx->shard_set->RunBriefInParallel(std::move(cb));
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return cntx->SendOk();
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return (*cntx)->SendOk();
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}
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void GenericFamily::Type(CmdArgList args, ConnectionContext* cntx) {
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@ -321,9 +321,9 @@ void GenericFamily::Type(CmdArgList args, ConnectionContext* cntx) {
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};
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OpResult<int> result = cntx->transaction->ScheduleSingleHopT(std::move(cb));
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if (!result) {
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cntx->SendSimpleRespString("none");
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(*cntx)->SendSimpleString("none");
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} else {
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cntx->SendSimpleRespString(ObjTypeName(result.value()));
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(*cntx)->SendSimpleString(ObjTypeName(result.value()));
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}
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}
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@ -363,7 +363,7 @@ OpResult<void> GenericFamily::RenameGeneric(CmdArgList args, bool skip_exist_des
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void GenericFamily::Echo(CmdArgList args, ConnectionContext* cntx) {
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string_view key = ArgS(args, 1);
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return cntx->SendBulkString(key);
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return (*cntx)->SendBulkString(key);
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}
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void GenericFamily::Scan(CmdArgList args, ConnectionContext* cntx) {
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@ -377,12 +377,12 @@ void GenericFamily::Scan(CmdArgList args, ConnectionContext* cntx) {
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CHECK_LT(shard_count, 1024u);
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if (!absl::SimpleAtoi(token, &cursor)) {
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return cntx->SendError("invalid cursor");
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return (*cntx)->SendError("invalid cursor");
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}
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ShardId sid = cursor % 1024;
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if (sid >= shard_count) {
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return cntx->SendError("invalid cursor");
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return (*cntx)->SendError("invalid cursor");
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}
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cursor >>= 10;
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@ -413,7 +413,7 @@ void GenericFamily::Scan(CmdArgList args, ConnectionContext* cntx) {
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absl::StrAppend(&res, "$", k.size(), "\r\n", k, "\r\n");
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}
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return cntx->SendRespBlob(res);
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return (*cntx)->SendRespBlob(res);
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}
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@ -220,11 +220,11 @@ void ListFamily::LLen(CmdArgList args, ConnectionContext* cntx) {
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};
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OpResult<uint32_t> result = cntx->transaction->ScheduleSingleHopT(std::move(cb));
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if (result) {
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cntx->SendLong(result.value());
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(*cntx)->SendLong(result.value());
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} else if (result.status() == OpStatus::KEY_NOTFOUND) {
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cntx->SendLong(0);
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(*cntx)->SendLong(0);
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} else {
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||||
cntx->SendError(result.status());
|
||||
(*cntx)->SendError(result.status());
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -233,7 +233,7 @@ void ListFamily::LIndex(CmdArgList args, ConnectionContext* cntx) {
|
|||
std::string_view index_str = ArgS(args, 2);
|
||||
int32_t index;
|
||||
if (!absl::SimpleAtoi(index_str, &index)) {
|
||||
cntx->SendError(kInvalidIntErr);
|
||||
(*cntx)->SendError(kInvalidIntErr);
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -242,9 +242,9 @@ void ListFamily::LIndex(CmdArgList args, ConnectionContext* cntx) {
|
|||
};
|
||||
OpResult<string> result = cntx->transaction->ScheduleSingleHopT(std::move(cb));
|
||||
if (result) {
|
||||
cntx->SendBulkString(result.value());
|
||||
(*cntx)->SendBulkString(result.value());
|
||||
} else {
|
||||
cntx->SendNull();
|
||||
(*cntx)->SendNull();
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -254,10 +254,10 @@ void ListFamily::BLPop(CmdArgList args, ConnectionContext* cntx) {
|
|||
float timeout;
|
||||
auto timeout_str = ArgS(args, args.size() - 1);
|
||||
if (!absl::SimpleAtof(timeout_str, &timeout)) {
|
||||
return cntx->SendError("timeout is not a float or out of range");
|
||||
return (*cntx)->SendError("timeout is not a float or out of range");
|
||||
}
|
||||
if (timeout < 0) {
|
||||
return cntx->SendError("timeout is negative");
|
||||
return (*cntx)->SendError("timeout is negative");
|
||||
}
|
||||
VLOG(1) << "BLPop start " << timeout;
|
||||
|
||||
|
|
@ -267,11 +267,11 @@ void ListFamily::BLPop(CmdArgList args, ConnectionContext* cntx) {
|
|||
|
||||
switch (result) {
|
||||
case OpStatus::WRONG_TYPE:
|
||||
return cntx->SendError(kWrongTypeErr);
|
||||
return (*cntx)->SendError(kWrongTypeErr);
|
||||
case OpStatus::OK:
|
||||
break;
|
||||
case OpStatus::TIMED_OUT:
|
||||
return cntx->SendNullArray();
|
||||
return (*cntx)->SendNullArray();
|
||||
default:
|
||||
LOG(FATAL) << "Unexpected error " << result;
|
||||
}
|
||||
|
|
@ -281,7 +281,7 @@ void ListFamily::BLPop(CmdArgList args, ConnectionContext* cntx) {
|
|||
|
||||
auto res = popper.result();
|
||||
std::string_view str_arr[2] = {res.first, res.second};
|
||||
return cntx->SendStringArr(str_arr);
|
||||
return (*cntx)->SendStringArr(str_arr);
|
||||
}
|
||||
|
||||
void ListFamily::PushGeneric(ListDir dir, const CmdArgList& args, ConnectionContext* cntx) {
|
||||
|
|
@ -298,13 +298,13 @@ void ListFamily::PushGeneric(ListDir dir, const CmdArgList& args, ConnectionCont
|
|||
OpResult<uint32_t> result = cntx->transaction->ScheduleSingleHopT(std::move(cb));
|
||||
switch (result.status()) {
|
||||
case OpStatus::KEY_NOTFOUND:
|
||||
return cntx->SendNull();
|
||||
return (*cntx)->SendNull();
|
||||
case OpStatus::WRONG_TYPE:
|
||||
return cntx->SendError(kWrongTypeErr);
|
||||
return (*cntx)->SendError(kWrongTypeErr);
|
||||
default:;
|
||||
}
|
||||
|
||||
return cntx->SendLong(result.value());
|
||||
return (*cntx)->SendLong(result.value());
|
||||
}
|
||||
|
||||
void ListFamily::PopGeneric(ListDir dir, const CmdArgList& args, ConnectionContext* cntx) {
|
||||
|
|
@ -318,13 +318,13 @@ void ListFamily::PopGeneric(ListDir dir, const CmdArgList& args, ConnectionConte
|
|||
|
||||
switch (result.status()) {
|
||||
case OpStatus::KEY_NOTFOUND:
|
||||
return cntx->SendNull();
|
||||
return (*cntx)->SendNull();
|
||||
case OpStatus::WRONG_TYPE:
|
||||
return cntx->SendError(kWrongTypeErr);
|
||||
return (*cntx)->SendError(kWrongTypeErr);
|
||||
default:;
|
||||
}
|
||||
|
||||
return cntx->SendBulkString(result.value());
|
||||
return (*cntx)->SendBulkString(result.value());
|
||||
}
|
||||
|
||||
OpResult<uint32_t> ListFamily::OpPush(const OpArgs& op_args, std::string_view key, ListDir dir,
|
||||
|
|
|
|||
|
|
@ -51,7 +51,7 @@ constexpr size_t kMaxThreadSize = 1024;
|
|||
|
||||
class EvalSerializer : public ObjectExplorer {
|
||||
public:
|
||||
EvalSerializer(ReplyBuilder* rb) : rb_(rb) {
|
||||
EvalSerializer(RedisReplyBuilder* rb) : rb_(rb) {
|
||||
}
|
||||
|
||||
void OnBool(bool b) final {
|
||||
|
|
@ -87,7 +87,7 @@ class EvalSerializer : public ObjectExplorer {
|
|||
}
|
||||
|
||||
void OnStatus(std::string_view str) {
|
||||
rb_->SendSimpleRespString(str);
|
||||
rb_->SendSimpleString(str);
|
||||
}
|
||||
|
||||
void OnError(std::string_view str) {
|
||||
|
|
@ -95,7 +95,7 @@ class EvalSerializer : public ObjectExplorer {
|
|||
}
|
||||
|
||||
private:
|
||||
ReplyBuilder* rb_;
|
||||
RedisReplyBuilder* rb_;
|
||||
};
|
||||
|
||||
void CallFromScript(CmdArgList args, ObjectExplorer* reply, ConnectionContext* cntx,
|
||||
|
|
@ -184,12 +184,12 @@ void Service::DispatchCommand(CmdArgList args, ConnectionContext* cntx) {
|
|||
};
|
||||
|
||||
if (cid == nullptr) {
|
||||
return cntx->SendError(absl::StrCat("unknown command `", cmd_str, "`"));
|
||||
return (*cntx)->SendError(absl::StrCat("unknown command `", cmd_str, "`"));
|
||||
}
|
||||
|
||||
if (etl.gstate() == GlobalState::LOADING || etl.gstate() == GlobalState::SHUTTING_DOWN) {
|
||||
string err = absl::StrCat("Can not execute during ", GlobalState::Name(etl.gstate()));
|
||||
cntx->SendError(err);
|
||||
(*cntx)->SendError(err);
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -197,21 +197,21 @@ void Service::DispatchCommand(CmdArgList args, ConnectionContext* cntx) {
|
|||
bool under_multi = cntx->conn_state.exec_state != ConnectionState::EXEC_INACTIVE && !is_trans_cmd;
|
||||
|
||||
if (!etl.is_master && is_write_cmd) {
|
||||
cntx->SendError("-READONLY You can't write against a read only replica.");
|
||||
(*cntx)->SendError("-READONLY You can't write against a read only replica.");
|
||||
return;
|
||||
}
|
||||
|
||||
if ((cid->arity() > 0 && args.size() != size_t(cid->arity())) ||
|
||||
(cid->arity() < 0 && args.size() < size_t(-cid->arity()))) {
|
||||
return cntx->SendError(WrongNumArgsError(cmd_str));
|
||||
return (*cntx)->SendError(WrongNumArgsError(cmd_str));
|
||||
}
|
||||
|
||||
if (cid->key_arg_step() == 2 && (args.size() % 2) == 0) {
|
||||
return cntx->SendError(WrongNumArgsError(cmd_str));
|
||||
return (*cntx)->SendError(WrongNumArgsError(cmd_str));
|
||||
}
|
||||
|
||||
if (under_multi && (cid->opt_mask() & CO::ADMIN)) {
|
||||
cntx->SendError("Can not run admin commands under multi-transactions");
|
||||
(*cntx)->SendError("Can not run admin commands under multi-transactions");
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -226,7 +226,7 @@ void Service::DispatchCommand(CmdArgList args, ConnectionContext* cntx) {
|
|||
}
|
||||
cntx->conn_state.exec_body.push_back(std::move(stored_cmd));
|
||||
|
||||
return cntx->SendSimpleRespString("QUEUED");
|
||||
return (*cntx)->SendSimpleString("QUEUED");
|
||||
}
|
||||
|
||||
uint64_t start_usec = ProactorBase::GetMonotonicTimeNs(), end_usec;
|
||||
|
|
@ -264,7 +264,7 @@ void Service::DispatchMC(const MemcacheParser::Command& cmd, std::string_view va
|
|||
absl::InlinedVector<MutableSlice, 8> args;
|
||||
char cmd_name[16];
|
||||
char set_opt[4] = {0};
|
||||
|
||||
MCReplyBuilder* mc_builder = static_cast<MCReplyBuilder*>(cntx->reply_builder());
|
||||
switch (cmd.type) {
|
||||
case MemcacheParser::REPLACE:
|
||||
strcpy(cmd_name, "SET");
|
||||
|
|
@ -281,7 +281,7 @@ void Service::DispatchMC(const MemcacheParser::Command& cmd, std::string_view va
|
|||
strcpy(cmd_name, "GET");
|
||||
break;
|
||||
default:
|
||||
cntx->SendMCClientError("bad command line format");
|
||||
mc_builder->SendClientError("bad command line format");
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -330,17 +330,17 @@ void Service::RegisterHttp(HttpListenerBase* listener) {
|
|||
}
|
||||
|
||||
void Service::Quit(CmdArgList args, ConnectionContext* cntx) {
|
||||
cntx->SendOk();
|
||||
cntx->CloseConnection();
|
||||
(*cntx)->SendOk();
|
||||
(*cntx)->CloseConnection();
|
||||
}
|
||||
|
||||
void Service::Multi(CmdArgList args, ConnectionContext* cntx) {
|
||||
if (cntx->conn_state.exec_state != ConnectionState::EXEC_INACTIVE) {
|
||||
return cntx->SendError("MULTI calls can not be nested");
|
||||
return (*cntx)->SendError("MULTI calls can not be nested");
|
||||
}
|
||||
cntx->conn_state.exec_state = ConnectionState::EXEC_COLLECT;
|
||||
// TODO: to protect against huge exec transactions.
|
||||
return cntx->SendOk();
|
||||
return (*cntx)->SendOk();
|
||||
}
|
||||
|
||||
void Service::Eval(CmdArgList args, ConnectionContext* cntx) {
|
||||
|
|
@ -349,11 +349,11 @@ void Service::Eval(CmdArgList args, ConnectionContext* cntx) {
|
|||
int32_t num_keys;
|
||||
|
||||
if (!absl::SimpleAtoi(num_keys_str, &num_keys) || num_keys < 0) {
|
||||
return cntx->SendError(kInvalidIntErr);
|
||||
return (*cntx)->SendError(kInvalidIntErr);
|
||||
}
|
||||
|
||||
if (unsigned(num_keys) > args.size() - 3) {
|
||||
return cntx->SendError("Number of keys can't be greater than number of args");
|
||||
return (*cntx)->SendError("Number of keys can't be greater than number of args");
|
||||
}
|
||||
|
||||
ServerState* ss = ServerState::tlocal();
|
||||
|
|
@ -363,7 +363,7 @@ void Service::Eval(CmdArgList args, ConnectionContext* cntx) {
|
|||
char f_id[48];
|
||||
bool success = script.Execute(body, f_id, &error);
|
||||
if (success) {
|
||||
EvalSerializer ser{cntx};
|
||||
EvalSerializer ser{static_cast<RedisReplyBuilder*>(cntx->reply_builder())};
|
||||
string error;
|
||||
|
||||
script.SetRedisFunc([cntx](CmdArgList args, ObjectExplorer* reply) {
|
||||
|
|
@ -371,28 +371,28 @@ void Service::Eval(CmdArgList args, ConnectionContext* cntx) {
|
|||
});
|
||||
|
||||
if (!script.Serialize(&ser, &error)) {
|
||||
cntx->SendError(error);
|
||||
(*cntx)->SendError(error);
|
||||
}
|
||||
} else {
|
||||
string resp = absl::StrCat("Error running script (call to ", f_id, "): ", error);
|
||||
return cntx->SendError(resp);
|
||||
return (*cntx)->SendError(resp);
|
||||
}
|
||||
}
|
||||
|
||||
void Service::Exec(CmdArgList args, ConnectionContext* cntx) {
|
||||
if (cntx->conn_state.exec_state == ConnectionState::EXEC_INACTIVE) {
|
||||
return cntx->SendError("EXEC without MULTI");
|
||||
return (*cntx)->SendError("EXEC without MULTI");
|
||||
}
|
||||
|
||||
if (cntx->conn_state.exec_state == ConnectionState::EXEC_ERROR) {
|
||||
cntx->conn_state.exec_state = ConnectionState::EXEC_INACTIVE;
|
||||
cntx->conn_state.exec_body.clear();
|
||||
return cntx->SendError("-EXECABORT Transaction discarded because of previous errors");
|
||||
return (*cntx)->SendError("-EXECABORT Transaction discarded because of previous errors");
|
||||
}
|
||||
|
||||
cntx->SendRespBlob(absl::StrCat("*", cntx->conn_state.exec_body.size(), "\r\n"));
|
||||
(*cntx)->SendRespBlob(absl::StrCat("*", cntx->conn_state.exec_body.size(), "\r\n"));
|
||||
|
||||
if (!cntx->ec() && !cntx->conn_state.exec_body.empty()) {
|
||||
if (!(*cntx)->GetError() && !cntx->conn_state.exec_body.empty()) {
|
||||
CmdArgVec str_list;
|
||||
|
||||
for (auto& scmd : cntx->conn_state.exec_body) {
|
||||
|
|
@ -406,7 +406,7 @@ void Service::Exec(CmdArgList args, ConnectionContext* cntx) {
|
|||
CmdArgList cmd_arg_list{str_list.data(), str_list.size()};
|
||||
cntx->transaction->InitByArgs(cntx->conn_state.db_index, cmd_arg_list);
|
||||
scmd.descr->Invoke(cmd_arg_list, cntx);
|
||||
if (cntx->ec())
|
||||
if ((*cntx)->GetError())
|
||||
break;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -108,14 +108,14 @@ bool Replica::Run(ConnectionContext* cntx) {
|
|||
|
||||
error_code ec = ConnectSocket();
|
||||
if (ec) {
|
||||
cntx->SendError(absl::StrCat(kConnErr, ec.message()));
|
||||
(*cntx)->SendError(absl::StrCat(kConnErr, ec.message()));
|
||||
return false;
|
||||
}
|
||||
|
||||
state_mask_ = R_ENABLED | R_TCP_CONNECTED;
|
||||
last_io_time_ = sock_thread_->GetMonotonicTimeNs();
|
||||
sync_fb_ = ::boost::fibers::fiber(&Replica::ConnectFb, this);
|
||||
cntx->SendOk();
|
||||
(*cntx)->SendOk();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -27,10 +27,15 @@ constexpr char kSimplePref[] = "+";
|
|||
|
||||
} // namespace
|
||||
|
||||
BaseSerializer::BaseSerializer(io::Sink* sink) : sink_(sink) {
|
||||
SinkReplyBuilder::SinkReplyBuilder(::io::Sink* sink) : sink_(sink) {
|
||||
}
|
||||
|
||||
void BaseSerializer::Send(const iovec* v, uint32_t len) {
|
||||
void SinkReplyBuilder::CloseConnection() {
|
||||
if (!ec_)
|
||||
ec_ = std::make_error_code(std::errc::connection_aborted);
|
||||
}
|
||||
|
||||
void SinkReplyBuilder::Send(const iovec* v, uint32_t len) {
|
||||
if (should_batch_) {
|
||||
// TODO: to introduce flushing when too much data is batched.
|
||||
for (unsigned i = 0; i < len; ++i) {
|
||||
|
|
@ -60,13 +65,62 @@ void BaseSerializer::Send(const iovec* v, uint32_t len) {
|
|||
}
|
||||
}
|
||||
|
||||
void BaseSerializer::SendDirect(std::string_view raw) {
|
||||
void SinkReplyBuilder::SendDirect(std::string_view raw) {
|
||||
iovec v = {IoVec(raw)};
|
||||
|
||||
Send(&v, 1);
|
||||
}
|
||||
|
||||
void RespSerializer::SendNull() {
|
||||
MCReplyBuilder::MCReplyBuilder(::io::Sink* sink) : SinkReplyBuilder(sink) {
|
||||
}
|
||||
|
||||
void MCReplyBuilder::SendStored() {
|
||||
SendDirect("STORED\r\n");
|
||||
}
|
||||
|
||||
|
||||
void MCReplyBuilder::SendGetReply(std::string_view key, uint32_t flags, std::string_view value) {
|
||||
string first = absl::StrCat("VALUE ", key, " ", flags, " ", value.size(), "\r\n");
|
||||
iovec v[] = {IoVec(first), IoVec(value), IoVec(kCRLF)};
|
||||
Send(v, ABSL_ARRAYSIZE(v));
|
||||
}
|
||||
|
||||
|
||||
void MCReplyBuilder::SendError(string_view str) {
|
||||
SendDirect("ERROR\r\n");
|
||||
}
|
||||
|
||||
void MCReplyBuilder::SendClientError(string_view str) {
|
||||
iovec v[] = {IoVec("CLIENT_ERROR"), IoVec(str), IoVec(kCRLF)};
|
||||
Send(v, ABSL_ARRAYSIZE(v));
|
||||
}
|
||||
|
||||
RedisReplyBuilder::RedisReplyBuilder(::io::Sink* sink) : SinkReplyBuilder(sink) {
|
||||
}
|
||||
|
||||
void RedisReplyBuilder::SendError(string_view str) {
|
||||
if (str[0] == '-') {
|
||||
iovec v[] = {IoVec(str), IoVec(kCRLF)};
|
||||
Send(v, ABSL_ARRAYSIZE(v));
|
||||
} else {
|
||||
iovec v[] = {IoVec(kErrPref), IoVec(str), IoVec(kCRLF)};
|
||||
Send(v, ABSL_ARRAYSIZE(v));
|
||||
}
|
||||
}
|
||||
|
||||
void RedisReplyBuilder::SendGetReply(std::string_view key, uint32_t flags, std::string_view value) {
|
||||
SendBulkString(value);
|
||||
}
|
||||
|
||||
void RedisReplyBuilder::SendGetNotFound() {
|
||||
SendNull();
|
||||
}
|
||||
|
||||
void RedisReplyBuilder::SendStored() {
|
||||
SendSimpleString("OK");
|
||||
}
|
||||
|
||||
void RedisReplyBuilder::SendNull() {
|
||||
constexpr char kNullStr[] = "$-1\r\n";
|
||||
|
||||
iovec v[] = {IoVec(kNullStr)};
|
||||
|
|
@ -74,13 +128,13 @@ void RespSerializer::SendNull() {
|
|||
Send(v, ABSL_ARRAYSIZE(v));
|
||||
}
|
||||
|
||||
void RespSerializer::SendSimpleString(std::string_view str) {
|
||||
void RedisReplyBuilder::SendSimpleString(std::string_view str) {
|
||||
iovec v[3] = {IoVec(kSimplePref), IoVec(str), IoVec(kCRLF)};
|
||||
|
||||
Send(v, ABSL_ARRAYSIZE(v));
|
||||
}
|
||||
|
||||
void RespSerializer::SendBulkString(std::string_view str) {
|
||||
void RedisReplyBuilder::SendBulkString(std::string_view str) {
|
||||
char tmp[absl::numbers_internal::kFastToBufferSize + 3];
|
||||
tmp[0] = '$'; // Format length
|
||||
char* next = absl::numbers_internal::FastIntToBuffer(uint32_t(str.size()), tmp + 1);
|
||||
|
|
@ -95,59 +149,7 @@ void RespSerializer::SendBulkString(std::string_view str) {
|
|||
return Send(v, ABSL_ARRAYSIZE(v));
|
||||
}
|
||||
|
||||
void MemcacheSerializer::SendStored() {
|
||||
SendDirect("STORED\r\n");
|
||||
}
|
||||
|
||||
void MemcacheSerializer::SendError() {
|
||||
SendDirect("ERROR\r\n");
|
||||
}
|
||||
|
||||
ReplyBuilder::ReplyBuilder(Protocol protocol, ::io::Sink* sink) : protocol_(protocol) {
|
||||
if (protocol == Protocol::REDIS) {
|
||||
serializer_.reset(new RespSerializer(sink));
|
||||
} else {
|
||||
DCHECK(protocol == Protocol::MEMCACHE);
|
||||
serializer_.reset(new MemcacheSerializer(sink));
|
||||
}
|
||||
}
|
||||
|
||||
void ReplyBuilder::SendStored() {
|
||||
if (protocol_ == Protocol::REDIS) {
|
||||
as_resp()->SendSimpleString("OK");
|
||||
} else {
|
||||
as_mc()->SendStored();
|
||||
}
|
||||
}
|
||||
|
||||
void ReplyBuilder::SendMCClientError(string_view str) {
|
||||
DCHECK(protocol_ == Protocol::MEMCACHE);
|
||||
|
||||
iovec v[] = {IoVec("CLIENT_ERROR"), IoVec(str), IoVec(kCRLF)};
|
||||
serializer_->Send(v, ABSL_ARRAYSIZE(v));
|
||||
}
|
||||
|
||||
void ReplyBuilder::EndMultilineReply() {
|
||||
if (protocol_ == Protocol::MEMCACHE) {
|
||||
serializer_->SendDirect("END\r\n");
|
||||
}
|
||||
}
|
||||
|
||||
void ReplyBuilder::SendError(string_view str) {
|
||||
DCHECK(protocol_ == Protocol::REDIS);
|
||||
|
||||
if (str[0] == '-') {
|
||||
iovec v[] = {IoVec(str), IoVec(kCRLF)};
|
||||
serializer_->Send(v, ABSL_ARRAYSIZE(v));
|
||||
} else {
|
||||
iovec v[] = {IoVec(kErrPref), IoVec(str), IoVec(kCRLF)};
|
||||
serializer_->Send(v, ABSL_ARRAYSIZE(v));
|
||||
}
|
||||
}
|
||||
|
||||
void ReplyBuilder::SendError(OpStatus status) {
|
||||
DCHECK(protocol_ == Protocol::REDIS);
|
||||
|
||||
void RedisReplyBuilder::SendError(OpStatus status) {
|
||||
switch (status) {
|
||||
case OpStatus::OK:
|
||||
SendOk();
|
||||
|
|
@ -162,32 +164,16 @@ void ReplyBuilder::SendError(OpStatus status) {
|
|||
}
|
||||
}
|
||||
|
||||
void ReplyBuilder::SendGetReply(std::string_view key, uint32_t flags, std::string_view value) {
|
||||
if (protocol_ == Protocol::REDIS) {
|
||||
as_resp()->SendBulkString(value);
|
||||
} else {
|
||||
string first = absl::StrCat("VALUE ", key, " ", flags, " ", value.size(), "\r\n");
|
||||
iovec v[] = {IoVec(first), IoVec(value), IoVec(kCRLF)};
|
||||
serializer_->Send(v, ABSL_ARRAYSIZE(v));
|
||||
}
|
||||
}
|
||||
|
||||
void ReplyBuilder::SendGetNotFound() {
|
||||
if (protocol_ == Protocol::REDIS) {
|
||||
as_resp()->SendNull();
|
||||
}
|
||||
}
|
||||
|
||||
void ReplyBuilder::SendLong(long num) {
|
||||
void RedisReplyBuilder::SendLong(long num) {
|
||||
string str = absl::StrCat(":", num, kCRLF);
|
||||
as_resp()->SendDirect(str);
|
||||
SendDirect(str);
|
||||
}
|
||||
|
||||
void ReplyBuilder::SendDouble(double val) {
|
||||
void RedisReplyBuilder::SendDouble(double val) {
|
||||
SendBulkString(absl::StrCat(val));
|
||||
}
|
||||
|
||||
void ReplyBuilder::SendMGetResponse(const StrOrNil* arr, uint32_t count) {
|
||||
void RedisReplyBuilder::SendMGetResponse(const StrOrNil* arr, uint32_t count) {
|
||||
string res = absl::StrCat("*", count, kCRLF);
|
||||
for (size_t i = 0; i < count; ++i) {
|
||||
if (arr[i]) {
|
||||
|
|
@ -198,39 +184,38 @@ void ReplyBuilder::SendMGetResponse(const StrOrNil* arr, uint32_t count) {
|
|||
}
|
||||
}
|
||||
|
||||
as_resp()->SendDirect(res);
|
||||
SendDirect(res);
|
||||
}
|
||||
|
||||
void ReplyBuilder::SendSimpleStrArr(const std::string_view* arr, uint32_t count) {
|
||||
CHECK(protocol_ == Protocol::REDIS);
|
||||
void RedisReplyBuilder::SendSimpleStrArr(const std::string_view* arr, uint32_t count) {
|
||||
string res = absl::StrCat("*", count, kCRLF);
|
||||
|
||||
for (size_t i = 0; i < count; ++i) {
|
||||
StrAppend(&res, "+", arr[i], kCRLF);
|
||||
}
|
||||
|
||||
serializer_->SendDirect(res);
|
||||
SendDirect(res);
|
||||
}
|
||||
|
||||
void ReplyBuilder::SendNullArray() {
|
||||
as_resp()->SendDirect("*-1\r\n");
|
||||
void RedisReplyBuilder::SendNullArray() {
|
||||
SendDirect("*-1\r\n");
|
||||
}
|
||||
|
||||
void ReplyBuilder::SendStringArr(absl::Span<const std::string_view> arr) {
|
||||
void RedisReplyBuilder::SendStringArr(absl::Span<const std::string_view> arr) {
|
||||
string res = absl::StrCat("*", arr.size(), kCRLF);
|
||||
|
||||
for (size_t i = 0; i < arr.size(); ++i) {
|
||||
StrAppend(&res, "$", arr[i].size(), kCRLF);
|
||||
res.append(arr[i]).append(kCRLF);
|
||||
}
|
||||
as_resp()->SendDirect(res);
|
||||
SendDirect(res);
|
||||
}
|
||||
|
||||
void ReqSerializer::SendCommand(std::string_view str) {
|
||||
VLOG(1) << "SendCommand: " << str;
|
||||
|
||||
iovec v[] = {IoVec(str), IoVec(kCRLF)};
|
||||
Send(v, ABSL_ARRAYSIZE(v));
|
||||
ec_ = sink_->Write(v, ABSL_ARRAYSIZE(v));
|
||||
}
|
||||
|
||||
} // namespace dfly
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@
|
|||
|
||||
#include "core/op_status.h"
|
||||
#include "io/sync_stream_interface.h"
|
||||
#include "server/common_types.h"
|
||||
// #include "server/common_types.h"
|
||||
|
||||
namespace dfly {
|
||||
|
||||
|
|
@ -16,27 +16,6 @@ class BaseSerializer {
|
|||
virtual ~BaseSerializer() {
|
||||
}
|
||||
|
||||
std::error_code ec() const {
|
||||
return ec_;
|
||||
}
|
||||
|
||||
void CloseConnection() {
|
||||
if (!ec_)
|
||||
ec_ = std::make_error_code(std::errc::connection_aborted);
|
||||
}
|
||||
|
||||
// In order to reduce interrupt rate we allow coalescing responses together using
|
||||
// Batch mode. It is controlled by Connection state machine because it makes sense only
|
||||
// when pipelined requests are arriving.
|
||||
void SetBatchMode(bool batch) {
|
||||
should_batch_ = batch;
|
||||
}
|
||||
|
||||
//! Sends a string as is without any formatting. raw should be encoded according to the protocol.
|
||||
void SendDirect(std::string_view str);
|
||||
|
||||
void Send(const iovec* v, uint32_t len);
|
||||
|
||||
private:
|
||||
::io::Sink* sink_;
|
||||
std::error_code ec_;
|
||||
|
|
@ -45,106 +24,124 @@ class BaseSerializer {
|
|||
bool should_batch_ = false;
|
||||
};
|
||||
|
||||
class RespSerializer : public BaseSerializer {
|
||||
class ReplyBuilderInterface {
|
||||
public:
|
||||
RespSerializer(::io::Sink* sink) : BaseSerializer(sink) {
|
||||
virtual ~ReplyBuilderInterface() {
|
||||
}
|
||||
|
||||
//! See https://redis.io/topics/protocol
|
||||
void SendSimpleString(std::string_view str);
|
||||
void SendNull();
|
||||
// Reply for set commands.
|
||||
virtual void SendStored() = 0;
|
||||
|
||||
/// aka "$6\r\nfoobar\r\n"
|
||||
void SendBulkString(std::string_view str);
|
||||
// Common for both MC and Redis.
|
||||
virtual void SendError(std::string_view str) = 0;
|
||||
|
||||
virtual std::error_code GetError() const = 0;
|
||||
|
||||
virtual void SendGetNotFound() = 0;
|
||||
virtual void SendGetReply(std::string_view key, uint32_t flags, std::string_view value) = 0;
|
||||
};
|
||||
|
||||
class MemcacheSerializer : public BaseSerializer {
|
||||
class SinkReplyBuilder : public ReplyBuilderInterface {
|
||||
public:
|
||||
explicit MemcacheSerializer(::io::Sink* sink) : BaseSerializer(sink) {
|
||||
SinkReplyBuilder(const SinkReplyBuilder&) = delete;
|
||||
void operator=(const SinkReplyBuilder&) = delete;
|
||||
|
||||
SinkReplyBuilder(::io::Sink* sink);
|
||||
|
||||
// In order to reduce interrupt rate we allow coalescing responses together using
|
||||
// Batch mode. It is controlled by Connection state machine because it makes sense only
|
||||
// when pipelined requests are arriving.
|
||||
void SetBatchMode(bool batch) {
|
||||
should_batch_ = batch;
|
||||
}
|
||||
|
||||
void SendStored();
|
||||
void SendError();
|
||||
// Used for QUIT - > should move to conn_context?
|
||||
void CloseConnection();
|
||||
|
||||
std::error_code GetError() const override {
|
||||
return ec_;
|
||||
}
|
||||
|
||||
protected:
|
||||
//! Sends a string as is without any formatting. raw should be encoded according to the protocol.
|
||||
void SendDirect(std::string_view str);
|
||||
|
||||
void Send(const iovec* v, uint32_t len);
|
||||
|
||||
::io::Sink* sink_;
|
||||
std::error_code ec_;
|
||||
std::string batch_;
|
||||
|
||||
bool should_batch_ = false;
|
||||
};
|
||||
|
||||
class ReplyBuilder {
|
||||
class MCReplyBuilder : public SinkReplyBuilder {
|
||||
public:
|
||||
ReplyBuilder(Protocol protocol, ::io::Sink* stream);
|
||||
MCReplyBuilder(::io::Sink* stream);
|
||||
|
||||
void SendStored();
|
||||
void SendError(std::string_view str) final;
|
||||
void SendGetReply(std::string_view key, uint32_t flags, std::string_view value) final;
|
||||
|
||||
void SendError(std::string_view str);
|
||||
void SendError(OpStatus status);
|
||||
// memcache does not print keys that are not found.
|
||||
void SendGetNotFound() final {
|
||||
}
|
||||
|
||||
void SendStored() final;
|
||||
|
||||
void SendClientError(std::string_view str);
|
||||
};
|
||||
|
||||
class RedisReplyBuilder : public SinkReplyBuilder {
|
||||
public:
|
||||
RedisReplyBuilder(::io::Sink* stream);
|
||||
|
||||
void SendOk() {
|
||||
as_resp()->SendSimpleString("OK");
|
||||
SendSimpleString("OK");
|
||||
}
|
||||
|
||||
std::error_code ec() const {
|
||||
return serializer_->ec();
|
||||
}
|
||||
void SendError(std::string_view str) override;
|
||||
void SendGetReply(std::string_view key, uint32_t flags, std::string_view value) override;
|
||||
void SendGetNotFound() override;
|
||||
void SendStored() override;
|
||||
|
||||
void SendMCClientError(std::string_view str);
|
||||
void EndMultilineReply();
|
||||
|
||||
void SendSimpleRespString(std::string_view str) {
|
||||
as_resp()->SendSimpleString(str);
|
||||
}
|
||||
|
||||
void SendGetReply(std::string_view key, uint32_t flags, std::string_view value);
|
||||
void SendGetNotFound();
|
||||
void SendError(OpStatus status);
|
||||
virtual void SendSimpleString(std::string_view str);
|
||||
|
||||
using StrOrNil = std::optional<std::string_view>;
|
||||
void SendMGetResponse(const StrOrNil* arr, uint32_t count);
|
||||
virtual void SendMGetResponse(const StrOrNil* arr, uint32_t count);
|
||||
virtual void SendSimpleStrArr(const std::string_view* arr, uint32_t count);
|
||||
virtual void SendNullArray();
|
||||
|
||||
void SetBatchMode(bool mode) {
|
||||
serializer_->SetBatchMode(mode);
|
||||
}
|
||||
virtual void SendStringArr(absl::Span<const std::string_view> arr);
|
||||
virtual void SendNull();
|
||||
|
||||
// Resp specific.
|
||||
// This one is prefixed with + and with clrf added automatically to each item..
|
||||
void SendSimpleStrArr(const std::string_view* arr, uint32_t count);
|
||||
void SendNullArray();
|
||||
virtual void SendLong(long val);
|
||||
virtual void SendDouble(double val);
|
||||
|
||||
void SendStringArr(absl::Span<const std::string_view> arr);
|
||||
|
||||
void SendNull() {
|
||||
as_resp()->SendNull();
|
||||
}
|
||||
|
||||
void SendLong(long val);
|
||||
void SendDouble(double val);
|
||||
|
||||
void SendBulkString(std::string_view str) {
|
||||
as_resp()->SendBulkString(str);
|
||||
}
|
||||
virtual void SendBulkString(std::string_view str);
|
||||
|
||||
// TODO: to get rid of it. We should only send high-level data.
|
||||
void SendRespBlob(std::string_view str) {
|
||||
as_resp()->SendDirect(str);
|
||||
}
|
||||
|
||||
void CloseConnection() {
|
||||
serializer_->CloseConnection();
|
||||
SendDirect(str);
|
||||
}
|
||||
|
||||
private:
|
||||
RespSerializer* as_resp() {
|
||||
return static_cast<RespSerializer*>(serializer_.get());
|
||||
}
|
||||
MemcacheSerializer* as_mc() {
|
||||
return static_cast<MemcacheSerializer*>(serializer_.get());
|
||||
}
|
||||
|
||||
std::unique_ptr<BaseSerializer> serializer_;
|
||||
Protocol protocol_;
|
||||
};
|
||||
|
||||
class ReqSerializer : public RespSerializer {
|
||||
class ReqSerializer {
|
||||
public:
|
||||
explicit ReqSerializer(::io::Sink* stream) : RespSerializer(stream) {
|
||||
explicit ReqSerializer(::io::Sink* stream) : sink_(stream) {
|
||||
}
|
||||
|
||||
void SendCommand(std::string_view str);
|
||||
|
||||
std::error_code ec() const {
|
||||
return ec_;
|
||||
}
|
||||
|
||||
private:
|
||||
::io::Sink* sink_;
|
||||
std::error_code ec_;
|
||||
};
|
||||
|
||||
} // namespace dfly
|
||||
|
|
|
|||
|
|
@ -100,7 +100,7 @@ void ServerFamily::DbSize(CmdArgList args, ConnectionContext* cntx) {
|
|||
},
|
||||
[](ShardId) { return true; });
|
||||
|
||||
return cntx->SendLong(num_keys.load(memory_order_relaxed));
|
||||
return (*cntx)->SendLong(num_keys.load(memory_order_relaxed));
|
||||
}
|
||||
|
||||
void ServerFamily::FlushDb(CmdArgList args, ConnectionContext* cntx) {
|
||||
|
|
@ -115,12 +115,12 @@ void ServerFamily::FlushDb(CmdArgList args, ConnectionContext* cntx) {
|
|||
},
|
||||
true);
|
||||
|
||||
cntx->SendOk();
|
||||
(*cntx)->SendOk();
|
||||
}
|
||||
|
||||
void ServerFamily::FlushAll(CmdArgList args, ConnectionContext* cntx) {
|
||||
if (args.size() > 1) {
|
||||
cntx->SendError(kSyntaxErr);
|
||||
(*cntx)->SendError(kSyntaxErr);
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -135,7 +135,7 @@ void ServerFamily::FlushAll(CmdArgList args, ConnectionContext* cntx) {
|
|||
},
|
||||
true);
|
||||
|
||||
cntx->SendOk();
|
||||
(*cntx)->SendOk();
|
||||
}
|
||||
|
||||
void ServerFamily::Debug(CmdArgList args, ConnectionContext* cntx) {
|
||||
|
|
@ -152,7 +152,7 @@ void ServerFamily::Save(CmdArgList args, ConnectionContext* cntx) {
|
|||
auto [current, switched] = global_state_.Next(GlobalState::SAVING);
|
||||
if (!switched) {
|
||||
string error = absl::StrCat(GlobalState::Name(current), " - can not save database");
|
||||
return cntx->SendError(error);
|
||||
return (*cntx)->SendError(error);
|
||||
}
|
||||
|
||||
absl::Cleanup rev_state = [this] { global_state_.Clear(); };
|
||||
|
|
@ -163,7 +163,7 @@ void ServerFamily::Save(CmdArgList args, ConnectionContext* cntx) {
|
|||
if (!dir_path.empty()) {
|
||||
ec = CreateDirs(dir_path);
|
||||
if (ec)
|
||||
return cntx->SendError(absl::StrCat("create dir ", ec.message()));
|
||||
return (*cntx)->SendError(absl::StrCat("create dir ", ec.message()));
|
||||
}
|
||||
|
||||
string filename = FLAGS_dbfilename.empty() ? "dump_save.rdb" : FLAGS_dbfilename;
|
||||
|
|
@ -174,7 +174,7 @@ void ServerFamily::Save(CmdArgList args, ConnectionContext* cntx) {
|
|||
|
||||
auto res = uring::OpenWrite(path.generic_string());
|
||||
if (!res) {
|
||||
cntx->SendError(res.error().message());
|
||||
(*cntx)->SendError(res.error().message());
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -198,7 +198,7 @@ void ServerFamily::Save(CmdArgList args, ConnectionContext* cntx) {
|
|||
}
|
||||
|
||||
if (ec) {
|
||||
cntx->SendError(res.error().message());
|
||||
(*cntx)->SendError(res.error().message());
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -216,10 +216,10 @@ void ServerFamily::Save(CmdArgList args, ConnectionContext* cntx) {
|
|||
ec = close_ec;
|
||||
|
||||
if (ec) {
|
||||
cntx->SendError(ec.message());
|
||||
(*cntx)->SendError(ec.message());
|
||||
} else {
|
||||
last_save_.store(time(NULL), memory_order_release);
|
||||
cntx->SendOk();
|
||||
(*cntx)->SendOk();
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -297,7 +297,7 @@ tcp_port:)";
|
|||
absl::StrAppend(&info, "\n# Keyspace\n");
|
||||
absl::StrAppend(&info, "db0:keys=xxx,expires=yyy,avg_ttl=zzz\n"); // TODO
|
||||
|
||||
cntx->SendBulkString(info);
|
||||
(*cntx)->SendBulkString(info);
|
||||
}
|
||||
|
||||
void ServerFamily::ReplicaOf(CmdArgList args, ConnectionContext* cntx) {
|
||||
|
|
@ -318,13 +318,13 @@ void ServerFamily::ReplicaOf(CmdArgList args, ConnectionContext* cntx) {
|
|||
replica_.reset();
|
||||
}
|
||||
|
||||
return cntx->SendOk();
|
||||
return (*cntx)->SendOk();
|
||||
}
|
||||
|
||||
uint32_t port;
|
||||
|
||||
if (!absl::SimpleAtoi(port_s, &port) || port < 1 || port > 65535) {
|
||||
cntx->SendError(kInvalidIntErr);
|
||||
(*cntx)->SendError(kInvalidIntErr);
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -365,12 +365,12 @@ void ServerFamily::Psync(CmdArgList args, ConnectionContext* cntx) {
|
|||
SyncGeneric("?", 0, cntx); // full sync, ignore the request.
|
||||
}
|
||||
void ServerFamily::LastSave(CmdArgList args, ConnectionContext* cntx) {
|
||||
cntx->SendLong(last_save_.load(memory_order_relaxed));
|
||||
(*cntx)->SendLong(last_save_.load(memory_order_relaxed));
|
||||
}
|
||||
|
||||
void ServerFamily::_Shutdown(CmdArgList args, ConnectionContext* cntx) {
|
||||
CHECK_NOTNULL(acceptor_)->Stop();
|
||||
cntx->SendOk();
|
||||
(*cntx)->SendOk();
|
||||
}
|
||||
|
||||
void ServerFamily::SyncGeneric(std::string_view repl_master_id, uint64_t offs,
|
||||
|
|
@ -378,7 +378,7 @@ void ServerFamily::SyncGeneric(std::string_view repl_master_id, uint64_t offs,
|
|||
if (cntx->conn_state.mask & ConnectionState::ASYNC_DISPATCH) {
|
||||
// SYNC is a special command that should not be sent in batch with other commands.
|
||||
// It should be the last command since afterwards the server just dumps the replication data.
|
||||
cntx->SendError("Can not sync in pipeline mode");
|
||||
(*cntx)->SendError("Can not sync in pipeline mode");
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -104,14 +104,14 @@ void StringFamily::Set(CmdArgList args, ConnectionContext* cntx) {
|
|||
bool is_ms = (cur_arg == "PX");
|
||||
++i;
|
||||
if (i == args.size()) {
|
||||
cntx->SendError(kSyntaxErr);
|
||||
(*cntx)->SendError(kSyntaxErr);
|
||||
}
|
||||
std::string_view ex = ArgS(args, i);
|
||||
if (!absl::SimpleAtoi(ex, &int_arg)) {
|
||||
return cntx->SendError(kInvalidIntErr);
|
||||
return (*cntx)->SendError(kInvalidIntErr);
|
||||
}
|
||||
if (int_arg <= 0 || (!is_ms && int_arg >= 500000000)) {
|
||||
return cntx->SendError("invalid expire time in set");
|
||||
return (*cntx)->SendError("invalid expire time in set");
|
||||
}
|
||||
if (!is_ms) {
|
||||
int_arg *= 1000;
|
||||
|
|
@ -124,7 +124,7 @@ void StringFamily::Set(CmdArgList args, ConnectionContext* cntx) {
|
|||
} else if (cur_arg == "KEEPTTL") {
|
||||
sparams.keep_expire = true;
|
||||
} else {
|
||||
return cntx->SendError(kSyntaxErr);
|
||||
return (*cntx)->SendError(kSyntaxErr);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -138,11 +138,11 @@ void StringFamily::Set(CmdArgList args, ConnectionContext* cntx) {
|
|||
OpResult<void> result = cntx->transaction->ScheduleSingleHop(std::move(cb));
|
||||
|
||||
if (result == OpStatus::OK) {
|
||||
return cntx->SendStored();
|
||||
return (*cntx)->SendStored();
|
||||
}
|
||||
|
||||
CHECK_EQ(result, OpStatus::SKIPPED); // in case of NX option
|
||||
return cntx->SendNull();
|
||||
return (*cntx)->SendNull();
|
||||
}
|
||||
|
||||
void StringFamily::Get(CmdArgList args, ConnectionContext* cntx) {
|
||||
|
|
@ -167,15 +167,15 @@ void StringFamily::Get(CmdArgList args, ConnectionContext* cntx) {
|
|||
|
||||
if (result) {
|
||||
DVLOG(1) << "GET " << trans->DebugId() << ": " << key << " " << result.value();
|
||||
cntx->SendGetReply(key, 0, result.value());
|
||||
(*cntx)->SendGetReply(key, 0, result.value());
|
||||
} else {
|
||||
switch (result.status()) {
|
||||
case OpStatus::WRONG_TYPE:
|
||||
cntx->SendError(kWrongTypeErr);
|
||||
(*cntx)->SendError(kWrongTypeErr);
|
||||
break;
|
||||
default:
|
||||
DVLOG(1) << "GET " << key << " nil";
|
||||
cntx->SendGetNotFound();
|
||||
(*cntx)->SendGetNotFound();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -197,15 +197,15 @@ void StringFamily::GetSet(CmdArgList args, ConnectionContext* cntx) {
|
|||
});
|
||||
|
||||
if (!result) {
|
||||
cntx->SendError(result.status());
|
||||
(*cntx)->SendError(result.status());
|
||||
return;
|
||||
}
|
||||
|
||||
if (prev_val) {
|
||||
cntx->SendGetReply(key, 0, *prev_val);
|
||||
(*cntx)->SendGetReply(key, 0, *prev_val);
|
||||
return;
|
||||
}
|
||||
return cntx->SendNull();
|
||||
return (*cntx)->SendNull();
|
||||
}
|
||||
|
||||
void StringFamily::Incr(CmdArgList args, ConnectionContext* cntx) {
|
||||
|
|
@ -221,7 +221,7 @@ void StringFamily::IncrBy(CmdArgList args, ConnectionContext* cntx) {
|
|||
int64_t val;
|
||||
|
||||
if (!absl::SimpleAtoi(sval, &val)) {
|
||||
return cntx->SendError(kInvalidIntErr);
|
||||
return (*cntx)->SendError(kInvalidIntErr);
|
||||
}
|
||||
return IncrByGeneric(key, val, cntx);
|
||||
}
|
||||
|
|
@ -237,7 +237,7 @@ void StringFamily::DecrBy(CmdArgList args, ConnectionContext* cntx) {
|
|||
int64_t val;
|
||||
|
||||
if (!absl::SimpleAtoi(sval, &val)) {
|
||||
return cntx->SendError(kInvalidIntErr);
|
||||
return (*cntx)->SendError(kInvalidIntErr);
|
||||
}
|
||||
return IncrByGeneric(key, -val, cntx);
|
||||
}
|
||||
|
|
@ -253,11 +253,11 @@ void StringFamily::IncrByGeneric(std::string_view key, int64_t val, ConnectionCo
|
|||
DVLOG(2) << "IncrByGeneric " << key << "/" << result.value();
|
||||
switch (result.status()) {
|
||||
case OpStatus::OK:
|
||||
return cntx->SendLong(result.value());
|
||||
return (*cntx)->SendLong(result.value());
|
||||
case OpStatus::INVALID_VALUE:
|
||||
return cntx->SendError(kInvalidIntErr);
|
||||
return (*cntx)->SendError(kInvalidIntErr);
|
||||
case OpStatus::OUT_OF_RANGE:
|
||||
return cntx->SendError("increment or decrement would overflow");
|
||||
return (*cntx)->SendError("increment or decrement would overflow");
|
||||
default:;
|
||||
}
|
||||
__builtin_unreachable();
|
||||
|
|
@ -297,7 +297,7 @@ void StringFamily::MGet(CmdArgList args, ConnectionContext* cntx) {
|
|||
}
|
||||
}
|
||||
|
||||
return cntx->SendMGetResponse(res.data(), res.size());
|
||||
return (*cntx)->SendMGetResponse(res.data(), res.size());
|
||||
}
|
||||
|
||||
void StringFamily::MSet(CmdArgList args, ConnectionContext* cntx) {
|
||||
|
|
@ -316,7 +316,7 @@ void StringFamily::MSet(CmdArgList args, ConnectionContext* cntx) {
|
|||
|
||||
DVLOG(2) << "MSet run " << transaction->DebugId();
|
||||
|
||||
return cntx->SendOk();
|
||||
return (*cntx)->SendOk();
|
||||
}
|
||||
|
||||
auto StringFamily::OpMGet(const Transaction* t, EngineShard* shard) -> MGetResponse {
|
||||
|
|
|
|||
Loading…
Reference in New Issue