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chore: import upstream snapshot with attribution

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wehub-resource-sync
2026-07-13 13:29:29 +08:00
commit f52cf32e56
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example/streaming_batch_echo_c++/CMakeLists.txt
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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
cmake_minimum_required(VERSION 3.16...3.28)
project(streaming_batch_echo_c++ C CXX)
include(${CMAKE_CURRENT_LIST_DIR}/../cmake/BrpcExample.cmake)
option(LINK_SO "Whether examples are linked dynamically" OFF)
execute_process(
COMMAND bash -c "find ${PROJECT_SOURCE_DIR}/../.. -type d -regex \".*output/include$\" | head -n1 | xargs dirname | tr -d '\n'"
OUTPUT_VARIABLE OUTPUT_PATH
)
if(OUTPUT_PATH)
list(PREPEND CMAKE_PREFIX_PATH ${OUTPUT_PATH})
endif()
find_package(Threads REQUIRED)
find_package(Protobuf REQUIRED)
protobuf_generate_cpp(PROTO_SRC PROTO_HEADER echo.proto)
# Search for libthrift* by best effort. If it is not found and brpc is
# compiled with thrift protocol enabled, a link error would be reported.
find_library(THRIFT_LIB NAMES thrift)
if (NOT THRIFT_LIB)
set(THRIFT_LIB "")
endif()
find_path(BRPC_INCLUDE_PATH NAMES brpc/server.h)
if(LINK_SO)
find_library(BRPC_LIB NAMES brpc)
else()
find_library(BRPC_LIB NAMES libbrpc.a brpc)
endif()
if((NOT BRPC_INCLUDE_PATH) OR (NOT BRPC_LIB))
message(FATAL_ERROR "Fail to find brpc")
endif()
find_path(GFLAGS_INCLUDE_PATH gflags/gflags.h)
find_library(GFLAGS_LIBRARY NAMES gflags libgflags)
if((NOT GFLAGS_INCLUDE_PATH) OR (NOT GFLAGS_LIBRARY))
message(FATAL_ERROR "Fail to find gflags")
endif()
find_path(LEVELDB_INCLUDE_PATH NAMES leveldb/db.h)
find_library(LEVELDB_LIB NAMES leveldb)
if ((NOT LEVELDB_INCLUDE_PATH) OR (NOT LEVELDB_LIB))
message(FATAL_ERROR "Fail to find leveldb")
endif()
if(CMAKE_SYSTEM_NAME STREQUAL "Darwin" AND NOT OPENSSL_ROOT_DIR)
set(OPENSSL_ROOT_DIR
"/usr/local/opt/openssl" # Homebrew installed OpenSSL
)
endif()
find_package(OpenSSL REQUIRED)
set(DYNAMIC_LIB
Threads::Threads
${GFLAGS_LIBRARY}
${PROTOBUF_LIBRARIES}
${LEVELDB_LIB}
${OPENSSL_CRYPTO_LIBRARY}
${OPENSSL_SSL_LIBRARY}
${THRIFT_LIB}
dl
)
if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
set(DYNAMIC_LIB ${DYNAMIC_LIB}
pthread
"-framework CoreFoundation"
"-framework CoreGraphics"
"-framework CoreData"
"-framework CoreText"
"-framework Security"
"-framework Foundation"
"-Wl,-U,_MallocExtension_ReleaseFreeMemory"
"-Wl,-U,_ProfilerStart"
"-Wl,-U,_ProfilerStop"
"-Wl,-U,__Z13GetStackTracePPvii")
endif()
add_executable(streaming_batch_echo_client client.cpp ${PROTO_SRC} ${PROTO_HEADER})
brpc_example_configure_target(streaming_batch_echo_client)
add_executable(streaming_batch_echo_server server.cpp ${PROTO_SRC} ${PROTO_HEADER})
brpc_example_configure_target(streaming_batch_echo_server)
target_link_libraries(streaming_batch_echo_client PRIVATE ${BRPC_LIB} ${DYNAMIC_LIB})
target_link_libraries(streaming_batch_echo_server PRIVATE ${BRPC_LIB} ${DYNAMIC_LIB})
example/streaming_batch_echo_c++/client.cpp
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
// A client sending requests to server in batch every 1 second.
#include <gflags/gflags.h>
#include <butil/logging.h>
#include <brpc/channel.h>
#include <brpc/stream.h>
#include "echo.pb.h"
DEFINE_bool(send_attachment, true, "Carry attachment along with requests");
DEFINE_string(connection_type, "", "Connection type. Available values: single, pooled, short");
DEFINE_string(server, "0.0.0.0:8001", "IP Address of server");
DEFINE_int32(timeout_ms, 100, "RPC timeout in milliseconds");
DEFINE_int32(max_retry, 3, "Max retries(not including the first RPC)");
class StreamClientReceiver : public brpc::StreamInputHandler {
public:
virtual int on_received_messages(brpc::StreamId id,
butil::IOBuf *const messages[],
size_t size) {
std::ostringstream os;
for (size_t i = 0; i < size; ++i) {
os << "msg[" << i << "]=" << *messages[i];
}
LOG(INFO) << "Received from Stream=" << id << ": " << os.str();
return 0;
}
virtual void on_idle_timeout(brpc::StreamId id) {
LOG(INFO) << "Stream=" << id << " has no data transmission for a while";
}
virtual void on_closed(brpc::StreamId id) {
LOG(INFO) << "Stream=" << id << " is closed";
}
virtual void on_finished(brpc::StreamId id, int32_t finish_code) {
LOG(INFO) << "Stream=" << id << " is finished, code " << finish_code;
}
};
int main(int argc, char* argv[]) {
// Parse gflags. We recommend you to use gflags as well.
GFLAGS_NAMESPACE::ParseCommandLineFlags(&argc, &argv, true);
// A Channel represents a communication line to a Server. Notice that
// Channel is thread-safe and can be shared by all threads in your program.
brpc::Channel channel;
// Initialize the channel, NULL means using default options.
brpc::ChannelOptions options;
options.protocol = brpc::PROTOCOL_BAIDU_STD;
options.connection_type = FLAGS_connection_type;
options.timeout_ms = FLAGS_timeout_ms/*milliseconds*/;
options.max_retry = FLAGS_max_retry;
if (channel.Init(FLAGS_server.c_str(), NULL) != 0) {
LOG(ERROR) << "Fail to initialize channel";
return -1;
}
// Normally, you should not call a Channel directly, but instead construct
// a stub Service wrapping it. stub can be shared by all threads as well.
example::EchoService_Stub stub(&channel);
StreamClientReceiver receiver;
brpc::Controller cntl;
brpc::StreamIds streams;
brpc::StreamOptions stream_options;
stream_options.handler = &receiver;
if (brpc::StreamCreate(streams, 3, cntl, &stream_options) != 0) {
LOG(ERROR) << "Fail to create stream";
return -1;
}
for(size_t i = 0; i < streams.size(); ++i) {
LOG(INFO) << "Created Stream=" << streams[i];
}
example::EchoRequest request;
example::EchoResponse response;
request.set_message("I'm a RPC to connect stream");
stub.Echo(&cntl, &request, &response, NULL);
if (cntl.Failed()) {
LOG(ERROR) << "Fail to connect stream, " << cntl.ErrorText();
return -1;
}
while (!brpc::IsAskedToQuit()) {
butil::IOBuf msg1;
msg1.append("abcdefghijklmnopqrstuvwxyz");
CHECK_EQ(0, brpc::StreamWrite(streams[0], msg1));
butil::IOBuf msg2;
msg2.append("0123456789");
CHECK_EQ(0, brpc::StreamWrite(streams[1], msg2));
sleep(1);
butil::IOBuf msg3;
msg3.append("hello world");
CHECK_EQ(0, brpc::StreamWrite(streams[2], msg3));
sleep(1);
}
CHECK_EQ(0, brpc::StreamClose(streams[0]));
CHECK_EQ(0, brpc::StreamClose(streams[1]));
CHECK_EQ(0, brpc::StreamClose(streams[2]));
LOG(INFO) << "EchoClient is going to quit";
return 0;
}
example/streaming_batch_echo_c++/echo.proto
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
syntax="proto2";
package example;
option cc_generic_services = true;
message EchoRequest {
required string message = 1;
};
message EchoResponse {
required string message = 1;
};
service EchoService {
rpc Echo(EchoRequest) returns (EchoResponse);
};
example/streaming_batch_echo_c++/server.cpp
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
// A server to receive EchoRequest and send back EchoResponse.
#include <gflags/gflags.h>
#include <butil/logging.h>
#include <brpc/server.h>
#include "echo.pb.h"
#include <brpc/stream.h>
DEFINE_bool(send_attachment, true, "Carry attachment along with response");
DEFINE_int32(port, 8001, "TCP Port of this server");
DEFINE_int32(idle_timeout_s, -1, "Connection will be closed if there is no "
"read/write operations during the last `idle_timeout_s'");
class StreamReceiver : public brpc::StreamInputHandler {
public:
virtual int on_received_messages(brpc::StreamId id,
butil::IOBuf *const messages[],
size_t size) {
std::ostringstream os;
for (size_t i = 0; i < size; ++i) {
os << "msg[" << i << "]=" << *messages[i];
}
auto res = brpc::StreamWrite(id, *messages[0]);
LOG(INFO) << "Received from Stream=" << id << ": " << os.str() << " and write back result: " << res;
return 0;
}
virtual void on_idle_timeout(brpc::StreamId id) {
LOG(INFO) << "Stream=" << id << " has no data transmission for a while";
}
virtual void on_closed(brpc::StreamId id) {
LOG(INFO) << "Stream=" << id << " is closed";
}
virtual void on_finished(brpc::StreamId id, int32_t finish_code) {
LOG(INFO) << "Stream=" << id << " is finished, code " << finish_code;
}
};
// Your implementation of example::EchoService
class StreamingBatchEchoService : public example::EchoService {
public:
virtual ~StreamingBatchEchoService() {
closeStreams();
};
virtual void Echo(google::protobuf::RpcController* controller,
const example::EchoRequest* /*request*/,
example::EchoResponse* response,
google::protobuf::Closure* done) {
// This object helps you to call done->Run() in RAII style. If you need
// to process the request asynchronously, pass done_guard.release().
brpc::ClosureGuard done_guard(done);
closeStreams();
brpc::Controller* cntl =
static_cast<brpc::Controller*>(controller);
brpc::StreamOptions stream_options;
stream_options.handler = &_receiver;
if (brpc::StreamAccept(_sds, *cntl, &stream_options) != 0) {
cntl->SetFailed("Fail to accept stream");
return;
}
response->set_message("Accepted stream");
}
private:
void closeStreams() {
for(auto i = 0; i < _sds.size(); ++i) {
brpc::StreamClose(_sds[i]);
}
_sds.clear();
}
StreamReceiver _receiver;
brpc::StreamIds _sds;
};
int main(int argc, char* argv[]) {
// Parse gflags. We recommend you to use gflags as well.
GFLAGS_NAMESPACE::ParseCommandLineFlags(&argc, &argv, true);
// Generally you only need one Server.
brpc::Server server;
// Instance of your service.
StreamingBatchEchoService echo_service_impl;
// Add the service into server. Notice the second parameter, because the
// service is put on stack, we don't want server to delete it, otherwise
// use brpc::SERVER_OWNS_SERVICE.
if (server.AddService(&echo_service_impl,
brpc::SERVER_DOESNT_OWN_SERVICE) != 0) {
LOG(ERROR) << "Fail to add service";
return -1;
}
// Start the server.
brpc::ServerOptions options;
options.idle_timeout_sec = FLAGS_idle_timeout_s;
if (server.Start(FLAGS_port, &options) != 0) {
LOG(ERROR) << "Fail to start EchoServer";
return -1;
}
// Wait until Ctrl-C is pressed, then Stop() and Join() the server.
server.RunUntilAskedToQuit();
return 0;
}