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/*
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* |
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* Copyright 2015, 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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#include <grpc/grpc.h> |
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#include <grpc/support/alloc.h> |
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#include <grpc/support/log.h> |
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#include "test/core/end2end/cq_verifier.h" |
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#include "test/core/util/test_config.h" |
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static void *tag(intptr_t i) { return (void *)i; } |
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int main(int argc, char **argv) { |
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grpc_channel *chan; |
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grpc_call *call; |
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gpr_timespec deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(2); |
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grpc_completion_queue *cq; |
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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 trailing_metadata_recv; |
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grpc_status_code status; |
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char *details = NULL; |
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size_t details_capacity = 0; |
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grpc_test_init(argc, argv); |
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grpc_init(); |
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grpc_metadata_array_init(&trailing_metadata_recv); |
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cq = grpc_completion_queue_create(NULL); |
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cqv = cq_verifier_create(cq); |
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/* reserve two ports */ |
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int port1 = grpc_pick_unused_port_or_die(); |
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int port2 = grpc_pick_unused_port_or_die(); |
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char *addr; |
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/* create a channel that picks first amongst the servers */ |
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gpr_asprintf(&addr, "ipv4:127.0.0.1:%d,127.0.0.1:%d", port1, port2); |
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grpc_channel *chan = grpc_insecure_channel_create(addr, NULL, NULL); |
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/* and an initial call to them */ |
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grpc_call *call1 = grpc_channel_create_call( |
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chan, NULL, GRPC_PROPAGATE_DEFAULTS, cq, "/foo", "127.0.0.1", |
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GRPC_TIMEOUT_SECONDS_TO_DEADLINE(20), NULL); |
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/* send initial metadata to probe connectivity */ |
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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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GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(call1, ops, |
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(size_t)(op - ops), |
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tag(0x101), NULL)); |
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/* and receive status to probe termination */ |
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op->op = GRPC_OP_RECV_STATUS_ON_CLIENT; |
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op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv1; |
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op->data.recv_status_on_client.status = &status1; |
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op->data.recv_status_on_client.status_details = &details1; |
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op->data.recv_status_on_client.status_details_capacity = &details_capacity1; |
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op->flags = 0; |
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op->reserved = NULL; |
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op++; |
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GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(call1, ops, |
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(size_t)(op - ops), |
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tag(0x102), NULL)); |
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/* bring a server up on the first port */ |
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grpc_server *server1 = grpc_server_create(NULL, NULL); |
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gpr_asprintf(&addr, "127.0.0.1:%d", port1); |
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grpc_server_add_insecure_http2_port(server1, addr); |
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gpr_free(addr); |
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grpc_server_start(server1); |
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/* request a call to the server */ |
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GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call(server1, &server_call1, |
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&request_metadata1, cq, |
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cq, tag(0x301))); |
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/* first call should now start */ |
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cq_expect_completion(cqv, tag(0x101), 1); |
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cq_expect_completion(cqv, tag(0x301), 1); |
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cq_verify(cqv); |
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/* shutdown first server: we should see nothing */ |
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grpc_server_shutdown_and_notify(server1, cq, tag(0xdead1)); |
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cq_verify_empty(cqv); |
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/* and a new call: should go through to server2 when we start it */ |
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grpc_call *call2 = grpc_channel_create_call( |
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chan, NULL, GRPC_PROPAGATE_DEFAULTS, cq, "/foo", "127.0.0.1", |
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GRPC_TIMEOUT_SECONDS_TO_DEADLINE(20), NULL); |
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/* send initial metadata to probe connectivity */ |
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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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GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(call2, ops, |
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(size_t)(op - ops), |
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tag(0x201), NULL)); |
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/* and receive status to probe termination */ |
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op->op = GRPC_OP_RECV_STATUS_ON_CLIENT; |
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op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv2; |
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op->data.recv_status_on_client.status = &status2; |
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op->data.recv_status_on_client.status_details = &details2; |
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op->data.recv_status_on_client.status_details_capacity = &details_capacity2; |
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op->flags = 0; |
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op->reserved = NULL; |
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op++; |
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GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(call1, ops, |
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(size_t)(op - ops), |
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tag(0x202), NULL)); |
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/* and bring up second server */ |
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grpc_server *server2 = grpc_server_create(NULL, NULL); |
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gpr_asprintf(&addr, "127.0.0.1:%d", port2); |
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grpc_server_add_insecure_http2_port(server2, addr); |
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gpr_free(addr); |
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grpc_server_start(server2); |
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/* request a call to the server */ |
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GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call(server1, &server_call1, |
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&request_metadata1, cq, |
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cq, tag(0x401))); |
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/* second call should now start */ |
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cq_expect_completion(cqv, tag(0x201), 1); |
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cq_expect_completion(cqv, tag(0x401), 1); |
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cq_verify(cqv); |
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/* shutdown second server: we should see nothing */ |
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grpc_server_shutdown_and_notify(server1, cq, tag(0xdead2)); |
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cq_verify_empty(cqv); |
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/* now everything else should finish */ |
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cq_expect_completion(cqv, tag(0x102), 1); |
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cq_expect_completion(cqv, tag(0x202), 1); |
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cq_expect_completion(cqv, tag(0x302), 1); |
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cq_expect_completion(cqv, tag(0x402), 1); |
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cq_expect_completion(cqv, tag(0xdead1), 1); |
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cq_expect_completion(cqv, tag(0xdead2), 1); |
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cq_verify(cqv); |
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gpr_free(details); |
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grpc_metadata_array_destroy(&trailing_metadata_recv); |
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grpc_shutdown(); |
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return 0; |
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} |
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