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/*
|
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* |
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* Copyright 2016, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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|
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#ifndef GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_H |
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#define GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_H |
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#include "src/core/ext/client_config/lb_policy_factory.h" |
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/** Returns a load balancing factory for the glb policy, which tries to connect
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* to a load balancing server to decide the next successfully connected |
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* subchannel to pick. */ |
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grpc_lb_policy_factory *grpc_glb_lb_factory_create(); |
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#endif /* GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_H */ |
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@ -0,0 +1,688 @@ |
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/*
|
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* |
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* Copyright 2016, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
||||
* modification, are permitted provided that the following conditions are |
||||
* met: |
||||
* |
||||
* * Redistributions of source code must retain the above copyright |
||||
* notice, this list of conditions and the following disclaimer. |
||||
* * Redistributions in binary form must reproduce the above |
||||
* copyright notice, this list of conditions and the following disclaimer |
||||
* in the documentation and/or other materials provided with the |
||||
* distribution. |
||||
* * Neither the name of Google Inc. nor the names of its |
||||
* contributors may be used to endorse or promote products derived from |
||||
* this software without specific prior written permission. |
||||
* |
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
||||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
||||
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#include <cinttypes> |
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#include <cstdarg> |
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#include <cstdint> |
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#include <cstring> |
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#include <string> |
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extern "C" { |
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#include <grpc/grpc.h> |
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#include <grpc/support/alloc.h> |
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#include <grpc/support/host_port.h> |
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#include <grpc/support/log.h> |
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#include <grpc/support/string_util.h> |
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#include <grpc/support/sync.h> |
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#include <grpc/support/thd.h> |
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#include <grpc/support/time.h> |
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|
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#include "src/core/ext/client_config/client_channel.h" |
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#include "src/core/lib/channel/channel_stack.h" |
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#include "src/core/lib/support/string.h" |
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#include "src/core/lib/support/tmpfile.h" |
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#include "src/core/lib/surface/channel.h" |
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#include "src/core/lib/surface/server.h" |
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#include "test/core/end2end/cq_verifier.h" |
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#include "test/core/util/port.h" |
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#include "test/core/util/test_config.h" |
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} |
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#include "src/proto/grpc/lb/v1/load_balancer.pb.h" |
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#define NUM_BACKENDS 4 |
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// TODO(dgq): Other scenarios in need of testing:
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// - Send an empty serverlist update and verify that the client request blocks
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// until a new serverlist with actual contents is available.
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// - Send identical serverlist update
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// - Test reception of invalid serverlist
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// - Test pinging
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// - Test against a non-LB server. That server should return UNIMPLEMENTED and
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// the call should fail.
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// - Random LB server closing the stream unexpectedly.
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namespace grpc { |
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namespace { |
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typedef struct client_fixture { |
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grpc_channel *client; |
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char *server_uri; |
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grpc_completion_queue *cq; |
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} client_fixture; |
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typedef struct server_fixture { |
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grpc_server *server; |
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grpc_call *server_call; |
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grpc_completion_queue *cq; |
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char *servers_hostport; |
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int port; |
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gpr_thd_id tid; |
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int num_calls_serviced; |
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} server_fixture; |
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typedef struct test_fixture { |
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server_fixture lb_server; |
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server_fixture lb_backends[NUM_BACKENDS]; |
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client_fixture client; |
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int lb_server_update_delay_ms; |
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} test_fixture; |
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static void *tag(intptr_t t) { return (void *)t; } |
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static gpr_slice build_response_payload_slice( |
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const char *host, int *ports, size_t nports, |
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int64_t expiration_interval_secs, int32_t expiration_interval_nanos) { |
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// server_list {
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// servers {
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// ip_address: "127.0.0.1"
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// port: ...
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// load_balance_token: "token..."
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// }
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// ...
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// }
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grpc::lb::v1::LoadBalanceResponse response; |
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auto *serverlist = response.mutable_server_list(); |
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if (expiration_interval_secs > 0 || expiration_interval_nanos > 0) { |
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auto *expiration_interval = serverlist->mutable_expiration_interval(); |
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if (expiration_interval_secs > 0) { |
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expiration_interval->set_seconds(expiration_interval_secs); |
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} |
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if (expiration_interval_nanos > 0) { |
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expiration_interval->set_nanos(expiration_interval_nanos); |
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} |
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} |
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for (size_t i = 0; i < nports; i++) { |
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auto *server = serverlist->add_servers(); |
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server->set_ip_address(host); |
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server->set_port(ports[i]); |
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// The following long long int cast is meant to work around the
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// disfunctional implementation of std::to_string in gcc 4.4, which doesn't
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// have a version for int but does have one for long long int.
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server->set_load_balance_token("token" + |
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std::to_string((long long int)ports[i])); |
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} |
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gpr_log(GPR_INFO, "generating response: %s", |
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response.ShortDebugString().c_str()); |
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const gpr_slice response_slice = |
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gpr_slice_from_copied_string(response.SerializeAsString().c_str()); |
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return response_slice; |
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} |
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static void drain_cq(grpc_completion_queue *cq) { |
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grpc_event ev; |
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do { |
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ev = grpc_completion_queue_next(cq, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), |
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NULL); |
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} while (ev.type != GRPC_QUEUE_SHUTDOWN); |
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} |
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static void sleep_ms(int delay_ms) { |
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gpr_sleep_until(gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), |
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gpr_time_from_millis(delay_ms, GPR_TIMESPAN))); |
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} |
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static void start_lb_server(server_fixture *sf, int *ports, size_t nports, |
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int update_delay_ms) { |
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grpc_call *s; |
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cq_verifier *cqv = cq_verifier_create(sf->cq); |
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grpc_op ops[6]; |
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grpc_op *op; |
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grpc_metadata_array request_metadata_recv; |
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grpc_call_details call_details; |
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grpc_call_error error; |
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int was_cancelled = 2; |
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grpc_byte_buffer *request_payload_recv; |
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grpc_byte_buffer *response_payload; |
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memset(ops, 0, sizeof(ops)); |
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grpc_metadata_array_init(&request_metadata_recv); |
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grpc_call_details_init(&call_details); |
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error = grpc_server_request_call(sf->server, &s, &call_details, |
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&request_metadata_recv, sf->cq, sf->cq, |
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tag(200)); |
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GPR_ASSERT(GRPC_CALL_OK == error); |
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gpr_log(GPR_INFO, "LB Server[%s] up", sf->servers_hostport); |
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cq_expect_completion(cqv, tag(200), 1); |
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cq_verify(cqv); |
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gpr_log(GPR_INFO, "LB Server[%s] after tag 200", sf->servers_hostport); |
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op = ops; |
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op->op = GRPC_OP_SEND_INITIAL_METADATA; |
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op->data.send_initial_metadata.count = 0; |
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op->flags = 0; |
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op->reserved = NULL; |
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op++; |
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op->op = GRPC_OP_RECV_CLOSE_ON_SERVER; |
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op->data.recv_close_on_server.cancelled = &was_cancelled; |
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op->flags = 0; |
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op->reserved = NULL; |
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op++; |
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error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(201), NULL); |
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GPR_ASSERT(GRPC_CALL_OK == error); |
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gpr_log(GPR_INFO, "LB Server[%s] after tag 201", sf->servers_hostport); |
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// receive request for backends
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op = ops; |
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op->op = GRPC_OP_RECV_MESSAGE; |
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op->data.recv_message = &request_payload_recv; |
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op->flags = 0; |
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op->reserved = NULL; |
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op++; |
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error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(202), NULL); |
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GPR_ASSERT(GRPC_CALL_OK == error); |
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cq_expect_completion(cqv, tag(202), 1); |
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cq_verify(cqv); |
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gpr_log(GPR_INFO, "LB Server[%s] after RECV_MSG", sf->servers_hostport); |
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// TODO(dgq): validate request.
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grpc_byte_buffer_destroy(request_payload_recv); |
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gpr_slice response_payload_slice; |
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for (int i = 0; i < 2; i++) { |
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if (i == 0) { |
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// First half of the ports.
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response_payload_slice = |
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build_response_payload_slice("127.0.0.1", ports, nports / 2, -1, -1); |
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} else { |
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// Second half of the ports.
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sleep_ms(update_delay_ms); |
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response_payload_slice = |
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build_response_payload_slice("127.0.0.1", ports + (nports / 2), |
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(nports + 1) / 2 /* ceil */, -1, -1); |
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} |
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response_payload = grpc_raw_byte_buffer_create(&response_payload_slice, 1); |
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op = ops; |
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op->op = GRPC_OP_SEND_MESSAGE; |
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op->data.send_message = response_payload; |
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op->flags = 0; |
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op->reserved = NULL; |
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op++; |
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error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(203), NULL); |
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GPR_ASSERT(GRPC_CALL_OK == error); |
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cq_expect_completion(cqv, tag(203), 1); |
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cq_verify(cqv); |
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gpr_log(GPR_INFO, "LB Server[%s] after SEND_MESSAGE, iter %d", |
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sf->servers_hostport, i); |
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grpc_byte_buffer_destroy(response_payload); |
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gpr_slice_unref(response_payload_slice); |
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} |
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gpr_log(GPR_INFO, "LB Server[%s] shutting down", sf->servers_hostport); |
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op = ops; |
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op->op = GRPC_OP_SEND_STATUS_FROM_SERVER; |
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op->data.send_status_from_server.trailing_metadata_count = 0; |
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op->data.send_status_from_server.status = GRPC_STATUS_OK; |
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op->data.send_status_from_server.status_details = "xyz"; |
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op->flags = 0; |
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op->reserved = NULL; |
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op++; |
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error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(204), NULL); |
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GPR_ASSERT(GRPC_CALL_OK == error); |
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cq_expect_completion(cqv, tag(201), 1); |
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cq_expect_completion(cqv, tag(204), 1); |
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cq_verify(cqv); |
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gpr_log(GPR_INFO, "LB Server[%s] after tag 204. All done. LB server out", |
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sf->servers_hostport); |
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grpc_call_destroy(s); |
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cq_verifier_destroy(cqv); |
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grpc_metadata_array_destroy(&request_metadata_recv); |
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grpc_call_details_destroy(&call_details); |
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} |
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static void start_backend_server(server_fixture *sf) { |
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grpc_call *s; |
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cq_verifier *cqv; |
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grpc_op ops[6]; |
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grpc_op *op; |
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grpc_metadata_array request_metadata_recv; |
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grpc_call_details call_details; |
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grpc_call_error error; |
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int was_cancelled; |
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grpc_byte_buffer *request_payload_recv; |
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grpc_byte_buffer *response_payload; |
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grpc_event ev; |
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|
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while (true) { |
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memset(ops, 0, sizeof(ops)); |
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cqv = cq_verifier_create(sf->cq); |
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was_cancelled = 2; |
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grpc_metadata_array_init(&request_metadata_recv); |
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grpc_call_details_init(&call_details); |
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|
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error = grpc_server_request_call(sf->server, &s, &call_details, |
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&request_metadata_recv, sf->cq, sf->cq, |
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tag(100)); |
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GPR_ASSERT(GRPC_CALL_OK == error); |
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gpr_log(GPR_INFO, "Server[%s] up", sf->servers_hostport); |
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ev = grpc_completion_queue_next(sf->cq, |
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GRPC_TIMEOUT_SECONDS_TO_DEADLINE(60), NULL); |
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if (!ev.success) { |
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gpr_log(GPR_INFO, "Server[%s] being torn down", sf->servers_hostport); |
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cq_verifier_destroy(cqv); |
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grpc_metadata_array_destroy(&request_metadata_recv); |
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grpc_call_details_destroy(&call_details); |
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return; |
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} |
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GPR_ASSERT(ev.type == GRPC_OP_COMPLETE); |
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gpr_log(GPR_INFO, "Server[%s] after tag 100", sf->servers_hostport); |
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|
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op = ops; |
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op->op = GRPC_OP_SEND_INITIAL_METADATA; |
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op->data.send_initial_metadata.count = 0; |
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op->flags = 0; |
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op->reserved = NULL; |
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op++; |
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op->op = GRPC_OP_RECV_CLOSE_ON_SERVER; |
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op->data.recv_close_on_server.cancelled = &was_cancelled; |
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op->flags = 0; |
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op->reserved = NULL; |
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op++; |
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error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(101), NULL); |
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GPR_ASSERT(GRPC_CALL_OK == error); |
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gpr_log(GPR_INFO, "Server[%s] after tag 101", sf->servers_hostport); |
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|
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bool exit = false; |
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gpr_slice response_payload_slice = |
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gpr_slice_from_copied_string("hello you"); |
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while (!exit) { |
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op = ops; |
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op->op = GRPC_OP_RECV_MESSAGE; |
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op->data.recv_message = &request_payload_recv; |
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op->flags = 0; |
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op->reserved = NULL; |
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op++; |
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error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(102), NULL); |
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GPR_ASSERT(GRPC_CALL_OK == error); |
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ev = grpc_completion_queue_next( |
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sf->cq, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3), NULL); |
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if (ev.type == GRPC_OP_COMPLETE && ev.success) { |
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GPR_ASSERT(ev.tag = tag(102)); |
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if (request_payload_recv == NULL) { |
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exit = true; |
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gpr_log(GPR_INFO, |
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"Server[%s] recv \"close\" from client, exiting. Call #%d", |
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sf->servers_hostport, sf->num_calls_serviced); |
||||
} |
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} else { |
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gpr_log(GPR_INFO, "Server[%s] forced to shutdown. Call #%d", |
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sf->servers_hostport, sf->num_calls_serviced); |
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exit = true; |
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} |
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gpr_log(GPR_INFO, "Server[%s] after tag 102. Call #%d", |
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sf->servers_hostport, sf->num_calls_serviced); |
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|
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if (!exit) { |
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response_payload = |
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grpc_raw_byte_buffer_create(&response_payload_slice, 1); |
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op = ops; |
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op->op = GRPC_OP_SEND_MESSAGE; |
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op->data.send_message = response_payload; |
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op->flags = 0; |
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op->reserved = NULL; |
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op++; |
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error = |
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grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(103), NULL); |
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GPR_ASSERT(GRPC_CALL_OK == error); |
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ev = grpc_completion_queue_next( |
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sf->cq, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3), NULL); |
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if (ev.type == GRPC_OP_COMPLETE && ev.success) { |
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GPR_ASSERT(ev.tag = tag(103)); |
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} else { |
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gpr_log(GPR_INFO, "Server[%s] forced to shutdown. Call #%d", |
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sf->servers_hostport, sf->num_calls_serviced); |
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exit = true; |
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} |
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gpr_log(GPR_INFO, "Server[%s] after tag 103. Call #%d", |
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sf->servers_hostport, sf->num_calls_serviced); |
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grpc_byte_buffer_destroy(response_payload); |
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} |
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|
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grpc_byte_buffer_destroy(request_payload_recv); |
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} |
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++sf->num_calls_serviced; |
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|
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gpr_log(GPR_INFO, "Server[%s] OUT OF THE LOOP", sf->servers_hostport); |
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gpr_slice_unref(response_payload_slice); |
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|
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op = ops; |
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op->op = GRPC_OP_SEND_STATUS_FROM_SERVER; |
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op->data.send_status_from_server.trailing_metadata_count = 0; |
||||
op->data.send_status_from_server.status = GRPC_STATUS_OK; |
||||
op->data.send_status_from_server.status_details = "Backend server out a-ok"; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(104), NULL); |
||||
GPR_ASSERT(GRPC_CALL_OK == error); |
||||
|
||||
cq_expect_completion(cqv, tag(101), 1); |
||||
cq_expect_completion(cqv, tag(104), 1); |
||||
cq_verify(cqv); |
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gpr_log(GPR_INFO, "Server[%s] DONE. After servicing %d calls", |
||||
sf->servers_hostport, sf->num_calls_serviced); |
||||
|
||||
grpc_call_destroy(s); |
||||
cq_verifier_destroy(cqv); |
||||
grpc_metadata_array_destroy(&request_metadata_recv); |
||||
grpc_call_details_destroy(&call_details); |
||||
} |
||||
} |
||||
|
||||
static void perform_request(client_fixture *cf) { |
||||
grpc_call *c; |
||||
cq_verifier *cqv = cq_verifier_create(cf->cq); |
||||
grpc_op ops[6]; |
||||
grpc_op *op; |
||||
grpc_metadata_array initial_metadata_recv; |
||||
grpc_metadata_array trailing_metadata_recv; |
||||
grpc_status_code status; |
||||
grpc_call_error error; |
||||
char *details = NULL; |
||||
size_t details_capacity = 0; |
||||
grpc_byte_buffer *request_payload; |
||||
grpc_byte_buffer *response_payload_recv; |
||||
int i; |
||||
|
||||
memset(ops, 0, sizeof(ops)); |
||||
gpr_slice request_payload_slice = gpr_slice_from_copied_string("hello world"); |
||||
|
||||
c = grpc_channel_create_call(cf->client, NULL, GRPC_PROPAGATE_DEFAULTS, |
||||
cf->cq, "/foo", "foo.test.google.fr:1234", |
||||
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1000), NULL); |
||||
gpr_log(GPR_INFO, "Call 0x%" PRIxPTR " created", (intptr_t)c); |
||||
GPR_ASSERT(c); |
||||
char *peer; |
||||
|
||||
grpc_metadata_array_init(&initial_metadata_recv); |
||||
grpc_metadata_array_init(&trailing_metadata_recv); |
||||
|
||||
op = ops; |
||||
op->op = GRPC_OP_SEND_INITIAL_METADATA; |
||||
op->data.send_initial_metadata.count = 0; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
op->op = GRPC_OP_RECV_INITIAL_METADATA; |
||||
op->data.recv_initial_metadata = &initial_metadata_recv; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
op->op = GRPC_OP_RECV_STATUS_ON_CLIENT; |
||||
op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv; |
||||
op->data.recv_status_on_client.status = &status; |
||||
op->data.recv_status_on_client.status_details = &details; |
||||
op->data.recv_status_on_client.status_details_capacity = &details_capacity; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
error = grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(1), NULL); |
||||
GPR_ASSERT(GRPC_CALL_OK == error); |
||||
|
||||
for (i = 0; i < 4; i++) { |
||||
request_payload = grpc_raw_byte_buffer_create(&request_payload_slice, 1); |
||||
|
||||
op = ops; |
||||
op->op = GRPC_OP_SEND_MESSAGE; |
||||
op->data.send_message = request_payload; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
op->op = GRPC_OP_RECV_MESSAGE; |
||||
op->data.recv_message = &response_payload_recv; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
error = grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(2), NULL); |
||||
GPR_ASSERT(GRPC_CALL_OK == error); |
||||
|
||||
peer = grpc_call_get_peer(c); |
||||
cq_expect_completion(cqv, tag(2), 1); |
||||
cq_verify(cqv); |
||||
gpr_free(peer); |
||||
|
||||
grpc_byte_buffer_destroy(request_payload); |
||||
grpc_byte_buffer_destroy(response_payload_recv); |
||||
} |
||||
|
||||
gpr_slice_unref(request_payload_slice); |
||||
|
||||
op = ops; |
||||
op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT; |
||||
op->flags = 0; |
||||
op->reserved = NULL; |
||||
op++; |
||||
error = grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(3), NULL); |
||||
GPR_ASSERT(GRPC_CALL_OK == error); |
||||
|
||||
cq_expect_completion(cqv, tag(1), 1); |
||||
cq_expect_completion(cqv, tag(3), 1); |
||||
cq_verify(cqv); |
||||
peer = grpc_call_get_peer(c); |
||||
gpr_log(GPR_INFO, "Client DONE WITH SERVER %s ", peer); |
||||
gpr_free(peer); |
||||
|
||||
grpc_call_destroy(c); |
||||
|
||||
cq_verify_empty_timeout(cqv, 1); |
||||
cq_verifier_destroy(cqv); |
||||
|
||||
grpc_metadata_array_destroy(&initial_metadata_recv); |
||||
grpc_metadata_array_destroy(&trailing_metadata_recv); |
||||
gpr_free(details); |
||||
} |
||||
|
||||
static void setup_client(const char *server_hostport, client_fixture *cf) { |
||||
cf->cq = grpc_completion_queue_create(NULL); |
||||
cf->server_uri = gpr_strdup(server_hostport); |
||||
cf->client = grpc_insecure_channel_create(cf->server_uri, NULL, NULL); |
||||
} |
||||
|
||||
static void teardown_client(client_fixture *cf) { |
||||
grpc_completion_queue_shutdown(cf->cq); |
||||
drain_cq(cf->cq); |
||||
grpc_completion_queue_destroy(cf->cq); |
||||
cf->cq = NULL; |
||||
grpc_channel_destroy(cf->client); |
||||
cf->client = NULL; |
||||
gpr_free(cf->server_uri); |
||||
} |
||||
|
||||
static void setup_server(const char *host, server_fixture *sf) { |
||||
int assigned_port; |
||||
|
||||
sf->cq = grpc_completion_queue_create(NULL); |
||||
const char *colon_idx = strchr(host, ':'); |
||||
if (colon_idx) { |
||||
const char *port_str = colon_idx + 1; |
||||
sf->port = atoi(port_str); |
||||
sf->servers_hostport = gpr_strdup(host); |
||||
} else { |
||||
sf->port = grpc_pick_unused_port_or_die(); |
||||
gpr_join_host_port(&sf->servers_hostport, host, sf->port); |
||||
} |
||||
|
||||
sf->server = grpc_server_create(NULL, NULL); |
||||
grpc_server_register_completion_queue(sf->server, sf->cq, NULL); |
||||
GPR_ASSERT((assigned_port = grpc_server_add_insecure_http2_port( |
||||
sf->server, sf->servers_hostport)) > 0); |
||||
GPR_ASSERT(sf->port == assigned_port); |
||||
grpc_server_start(sf->server); |
||||
} |
||||
|
||||
static void teardown_server(server_fixture *sf) { |
||||
if (!sf->server) return; |
||||
|
||||
gpr_log(GPR_INFO, "Server[%s] shutting down", sf->servers_hostport); |
||||
grpc_server_shutdown_and_notify(sf->server, sf->cq, tag(1000)); |
||||
GPR_ASSERT(grpc_completion_queue_pluck( |
||||
sf->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL) |
||||
.type == GRPC_OP_COMPLETE); |
||||
grpc_server_destroy(sf->server); |
||||
gpr_thd_join(sf->tid); |
||||
|
||||
sf->server = NULL; |
||||
grpc_completion_queue_shutdown(sf->cq); |
||||
drain_cq(sf->cq); |
||||
grpc_completion_queue_destroy(sf->cq); |
||||
|
||||
gpr_log(GPR_INFO, "Server[%s] bye bye", sf->servers_hostport); |
||||
gpr_free(sf->servers_hostport); |
||||
} |
||||
|
||||
static void fork_backend_server(void *arg) { |
||||
server_fixture *sf = static_cast<server_fixture *>(arg); |
||||
start_backend_server(sf); |
||||
} |
||||
|
||||
static void fork_lb_server(void *arg) { |
||||
test_fixture *tf = static_cast<test_fixture *>(arg); |
||||
int ports[NUM_BACKENDS]; |
||||
for (int i = 0; i < NUM_BACKENDS; i++) { |
||||
ports[i] = tf->lb_backends[i].port; |
||||
} |
||||
start_lb_server(&tf->lb_server, ports, NUM_BACKENDS, |
||||
tf->lb_server_update_delay_ms); |
||||
} |
||||
|
||||
static void setup_test_fixture(test_fixture *tf, |
||||
int lb_server_update_delay_ms) { |
||||
tf->lb_server_update_delay_ms = lb_server_update_delay_ms; |
||||
|
||||
gpr_thd_options options = gpr_thd_options_default(); |
||||
gpr_thd_options_set_joinable(&options); |
||||
|
||||
for (int i = 0; i < NUM_BACKENDS; ++i) { |
||||
setup_server("127.0.0.1", &tf->lb_backends[i]); |
||||
gpr_thd_new(&tf->lb_backends[i].tid, fork_backend_server, |
||||
&tf->lb_backends[i], &options); |
||||
} |
||||
|
||||
setup_server("127.0.0.1", &tf->lb_server); |
||||
gpr_thd_new(&tf->lb_server.tid, fork_lb_server, &tf->lb_server, &options); |
||||
|
||||
char *server_uri; |
||||
gpr_asprintf(&server_uri, "ipv4:%s?lb_policy=grpclb&lb_enabled=1", |
||||
tf->lb_server.servers_hostport); |
||||
setup_client(server_uri, &tf->client); |
||||
gpr_free(server_uri); |
||||
} |
||||
|
||||
static void teardown_test_fixture(test_fixture *tf) { |
||||
teardown_client(&tf->client); |
||||
for (int i = 0; i < NUM_BACKENDS; ++i) { |
||||
teardown_server(&tf->lb_backends[i]); |
||||
} |
||||
teardown_server(&tf->lb_server); |
||||
} |
||||
|
||||
// The LB server will send two updates: batch 1 and batch 2. Each batch
|
||||
// contains
|
||||
// two addresses, both of a valid and running backend server. Batch 1 is
|
||||
// readily
|
||||
// available and provided as soon as the client establishes the streaming
|
||||
// call.
|
||||
// Batch 2 is sent after a delay of \a lb_server_update_delay_ms
|
||||
// milliseconds.
|
||||
static test_fixture test_update(int lb_server_update_delay_ms) { |
||||
gpr_log(GPR_INFO, "start %s(%d)", __func__, lb_server_update_delay_ms); |
||||
test_fixture tf; |
||||
memset(&tf, 0, sizeof(tf)); |
||||
setup_test_fixture(&tf, lb_server_update_delay_ms); |
||||
perform_request( |
||||
&tf.client); // "consumes" 1st backend server of 1st serverlist
|
||||
perform_request( |
||||
&tf.client); // "consumes" 2nd backend server of 1st serverlist
|
||||
|
||||
perform_request( |
||||
&tf.client); // "consumes" 1st backend server of 2nd serverlist
|
||||
perform_request( |
||||
&tf.client); // "consumes" 2nd backend server of 2nd serverlist
|
||||
|
||||
teardown_test_fixture(&tf); |
||||
gpr_log(GPR_INFO, "end %s(%d)", __func__, lb_server_update_delay_ms); |
||||
return tf; |
||||
} |
||||
|
||||
} // namespace
|
||||
} // namespace grpc
|
||||
|
||||
int main(int argc, char **argv) { |
||||
grpc_test_init(argc, argv); |
||||
grpc_init(); |
||||
|
||||
grpc::test_fixture tf_result; |
||||
// Clients take a bit over one second to complete a call (the last part of the
|
||||
// call sleeps for 1 second while verifying the client's completion queue is
|
||||
// empty). Therefore:
|
||||
//
|
||||
// If the LB server waits 800ms before sending an update, it will arrive
|
||||
// before the first client request is done, skipping the second server from
|
||||
// batch 1 altogether: the 2nd client request will go to the 1st server of
|
||||
// batch 2 (ie, the third one out of the four total servers).
|
||||
tf_result = grpc::test_update(800); |
||||
GPR_ASSERT(tf_result.lb_backends[0].num_calls_serviced == 1); |
||||
GPR_ASSERT(tf_result.lb_backends[1].num_calls_serviced == 0); |
||||
GPR_ASSERT(tf_result.lb_backends[2].num_calls_serviced == 2); |
||||
GPR_ASSERT(tf_result.lb_backends[3].num_calls_serviced == 1); |
||||
|
||||
// If the LB server waits 1500ms, the update arrives after having picked the
|
||||
// 2nd server from batch 1 but before the next pick for the first server of
|
||||
// batch 2. All server are used.
|
||||
tf_result = grpc::test_update(1500); |
||||
GPR_ASSERT(tf_result.lb_backends[0].num_calls_serviced == 1); |
||||
GPR_ASSERT(tf_result.lb_backends[1].num_calls_serviced == 1); |
||||
GPR_ASSERT(tf_result.lb_backends[2].num_calls_serviced == 1); |
||||
GPR_ASSERT(tf_result.lb_backends[3].num_calls_serviced == 1); |
||||
|
||||
// If the LB server waits > 2000ms, the update arrives after the first two
|
||||
// request are done and the third pick is performed, which returns, in RR
|
||||
// fashion, the 1st server of the 1st update. Therefore, the second server of
|
||||
// batch 1 is hit twice, whereas the first server of batch 2 is never hit.
|
||||
tf_result = grpc::test_update(2100); |
||||
GPR_ASSERT(tf_result.lb_backends[0].num_calls_serviced == 2); |
||||
GPR_ASSERT(tf_result.lb_backends[1].num_calls_serviced == 1); |
||||
GPR_ASSERT(tf_result.lb_backends[2].num_calls_serviced == 1); |
||||
GPR_ASSERT(tf_result.lb_backends[3].num_calls_serviced == 0); |
||||
|
||||
grpc_shutdown(); |
||||
return 0; |
||||
} |
||||
@ -0,0 +1,215 @@ |
||||
<?xml version="1.0" encoding="utf-8"?> |
||||
<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> |
||||
<Import Project="$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\grpc.dependencies.openssl.props" Condition="Exists('$(SolutionDir)\..\vsprojects\packages\grpc.dependencies.openssl.1.0.204.1\build\native\1.0.204.1.props')" /> |
||||
<ItemGroup Label="ProjectConfigurations"> |
||||
<ProjectConfiguration Include="Debug|Win32"> |
||||
<Configuration>Debug</Configuration> |
||||
<Platform>Win32</Platform> |
||||
</ProjectConfiguration> |
||||
<ProjectConfiguration Include="Debug|x64"> |
||||
<Configuration>Debug</Configuration> |
||||
<Platform>x64</Platform> |
||||
</ProjectConfiguration> |
||||
<ProjectConfiguration Include="Release|Win32"> |
||||
<Configuration>Release</Configuration> |
||||
<Platform>Win32</Platform> |
||||
</ProjectConfiguration> |
||||
<ProjectConfiguration Include="Release|x64"> |
||||
<Configuration>Release</Configuration> |
||||
<Platform>x64</Platform> |
||||
</ProjectConfiguration> |
||||
</ItemGroup> |
||||
<PropertyGroup Label="Globals"> |
||||
<ProjectGuid>{9D6FFE17-ABF0-A851-268E-9E3E8C573CBB}</ProjectGuid> |
||||
<IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected> |
||||
<IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir> |
||||
</PropertyGroup> |
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" /> |
||||
<PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration"> |
||||
<PlatformToolset>v100</PlatformToolset> |
||||
</PropertyGroup> |
||||
<PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration"> |
||||
<PlatformToolset>v110</PlatformToolset> |
||||
</PropertyGroup> |
||||
<PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration"> |
||||
<PlatformToolset>v120</PlatformToolset> |
||||
</PropertyGroup> |
||||
<PropertyGroup Condition="'$(VisualStudioVersion)' == '14.0'" Label="Configuration"> |
||||
<PlatformToolset>v140</PlatformToolset> |
||||
</PropertyGroup> |
||||
<PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration"> |
||||
<ConfigurationType>Application</ConfigurationType> |
||||
<UseDebugLibraries>true</UseDebugLibraries> |
||||
<CharacterSet>Unicode</CharacterSet> |
||||
</PropertyGroup> |
||||
<PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration"> |
||||
<ConfigurationType>Application</ConfigurationType> |
||||
<UseDebugLibraries>false</UseDebugLibraries> |
||||
<WholeProgramOptimization>true</WholeProgramOptimization> |
||||
<CharacterSet>Unicode</CharacterSet> |
||||
</PropertyGroup> |
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" /> |
||||
<ImportGroup Label="ExtensionSettings"> |
||||
</ImportGroup> |
||||
<ImportGroup Label="PropertySheets"> |
||||
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" /> |
||||
<Import Project="$(SolutionDir)\..\vsprojects\cpptest.props" /> |
||||
<Import Project="$(SolutionDir)\..\vsprojects\global.props" /> |
||||
<Import Project="$(SolutionDir)\..\vsprojects\openssl.props" /> |
||||
<Import Project="$(SolutionDir)\..\vsprojects\protobuf.props" /> |
||||
<Import Project="$(SolutionDir)\..\vsprojects\winsock.props" /> |
||||
<Import Project="$(SolutionDir)\..\vsprojects\zlib.props" /> |
||||
</ImportGroup> |
||||
<PropertyGroup Label="UserMacros" /> |
||||
<PropertyGroup Condition="'$(Configuration)'=='Debug'"> |
||||
<TargetName>grpclb_test</TargetName> |
||||
<Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib> |
||||
<Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib> |
||||
<Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl> |
||||
<Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl> |
||||
</PropertyGroup> |
||||
<PropertyGroup Condition="'$(Configuration)'=='Release'"> |
||||
<TargetName>grpclb_test</TargetName> |
||||
<Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib> |
||||
<Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib> |
||||
<Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl> |
||||
<Configuration-grpc_dependencies_openssl>Release</Configuration-grpc_dependencies_openssl> |
||||
</PropertyGroup> |
||||
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'"> |
||||
<ClCompile> |
||||
<PrecompiledHeader>NotUsing</PrecompiledHeader> |
||||
<WarningLevel>Level3</WarningLevel> |
||||
<Optimization>Disabled</Optimization> |
||||
<PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions> |
||||
<SDLCheck>true</SDLCheck> |
||||
<RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary> |
||||
<TreatWarningAsError>true</TreatWarningAsError> |
||||
<DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat> |
||||
<MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild> |
||||
</ClCompile> |
||||
<Link> |
||||
<SubSystem>Console</SubSystem> |
||||
<GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation> |
||||
<GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation> |
||||
</Link> |
||||
</ItemDefinitionGroup> |
||||
|
||||
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'"> |
||||
<ClCompile> |
||||
<PrecompiledHeader>NotUsing</PrecompiledHeader> |
||||
<WarningLevel>Level3</WarningLevel> |
||||
<Optimization>Disabled</Optimization> |
||||
<PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions> |
||||
<SDLCheck>true</SDLCheck> |
||||
<RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary> |
||||
<TreatWarningAsError>true</TreatWarningAsError> |
||||
<DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat> |
||||
<MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild> |
||||
</ClCompile> |
||||
<Link> |
||||
<SubSystem>Console</SubSystem> |
||||
<GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation> |
||||
<GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation> |
||||
</Link> |
||||
</ItemDefinitionGroup> |
||||
|
||||
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'"> |
||||
<ClCompile> |
||||
<PrecompiledHeader>NotUsing</PrecompiledHeader> |
||||
<WarningLevel>Level3</WarningLevel> |
||||
<Optimization>MaxSpeed</Optimization> |
||||
<PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions> |
||||
<FunctionLevelLinking>true</FunctionLevelLinking> |
||||
<IntrinsicFunctions>true</IntrinsicFunctions> |
||||
<SDLCheck>true</SDLCheck> |
||||
<RuntimeLibrary>MultiThreaded</RuntimeLibrary> |
||||
<TreatWarningAsError>true</TreatWarningAsError> |
||||
<DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat> |
||||
<MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild> |
||||
</ClCompile> |
||||
<Link> |
||||
<SubSystem>Console</SubSystem> |
||||
<GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation> |
||||
<GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation> |
||||
<EnableCOMDATFolding>true</EnableCOMDATFolding> |
||||
<OptimizeReferences>true</OptimizeReferences> |
||||
</Link> |
||||
</ItemDefinitionGroup> |
||||
|
||||
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'"> |
||||
<ClCompile> |
||||
<PrecompiledHeader>NotUsing</PrecompiledHeader> |
||||
<WarningLevel>Level3</WarningLevel> |
||||
<Optimization>MaxSpeed</Optimization> |
||||
<PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions> |
||||
<FunctionLevelLinking>true</FunctionLevelLinking> |
||||
<IntrinsicFunctions>true</IntrinsicFunctions> |
||||
<SDLCheck>true</SDLCheck> |
||||
<RuntimeLibrary>MultiThreaded</RuntimeLibrary> |
||||
<TreatWarningAsError>true</TreatWarningAsError> |
||||
<DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat> |
||||
<MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild> |
||||
</ClCompile> |
||||
<Link> |
||||
<SubSystem>Console</SubSystem> |
||||
<GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation> |
||||
<GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation> |
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Loading…
Reference in new issue