| /* |
| * |
| * Copyright 2015 gRPC authors. |
| * |
| * Licensed 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. |
| * |
| */ |
| |
| #include <grpc/support/port_platform.h> |
| |
| #include <stdint.h> |
| #include <stdlib.h> |
| |
| #include <cmath> |
| #include <memory> |
| #include <string> |
| #include <utility> |
| |
| #include "absl/status/statusor.h" |
| |
| #include "src/core/lib/gprpp/orphanable.h" |
| #include "src/core/lib/gprpp/ref_counted_ptr.h" |
| #include "src/core/lib/gprpp/time.h" |
| #include "src/core/lib/http/parser.h" |
| #include "src/core/lib/iomgr/closure.h" |
| #include "src/core/lib/iomgr/error.h" |
| #include "src/core/lib/iomgr/exec_ctx.h" |
| #include "src/core/lib/iomgr/iomgr_fwd.h" |
| #include "src/core/lib/iomgr/polling_entity.h" |
| #include "src/core/lib/iomgr/pollset.h" |
| #include "src/core/lib/uri/uri_parser.h" |
| #include "test/core/util/test_config.h" |
| |
| #ifdef GRPC_TEST_PICK_PORT |
| #include <string.h> |
| |
| #include "absl/strings/str_format.h" |
| |
| #include <grpc/grpc.h> |
| #include <grpc/grpc_security.h> |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/sync.h> |
| #include <grpc/support/time.h> |
| |
| #include "src/core/lib/http/httpcli.h" |
| #include "src/core/lib/security/credentials/credentials.h" |
| #include "test/core/util/port_server_client.h" |
| |
| typedef struct freereq { |
| gpr_mu* mu = nullptr; |
| grpc_polling_entity pops = {}; |
| int done = 0; |
| } freereq; |
| |
| static void destroy_pops_and_shutdown(void* p, grpc_error_handle /*error*/) { |
| grpc_pollset* pollset = |
| grpc_polling_entity_pollset(static_cast<grpc_polling_entity*>(p)); |
| grpc_pollset_destroy(pollset); |
| gpr_free(pollset); |
| } |
| |
| static void freed_port_from_server(void* arg, grpc_error_handle /*error*/) { |
| freereq* pr = static_cast<freereq*>(arg); |
| gpr_mu_lock(pr->mu); |
| pr->done = 1; |
| GRPC_LOG_IF_ERROR( |
| "pollset_kick", |
| grpc_pollset_kick(grpc_polling_entity_pollset(&pr->pops), nullptr)); |
| gpr_mu_unlock(pr->mu); |
| } |
| |
| void grpc_free_port_using_server(int port) { |
| grpc_http_request req; |
| grpc_http_response rsp; |
| freereq pr; |
| grpc_closure* shutdown_closure; |
| |
| grpc_init(); |
| { |
| grpc_core::ExecCtx exec_ctx; |
| |
| pr = {}; |
| memset(&req, 0, sizeof(req)); |
| rsp = {}; |
| |
| grpc_pollset* pollset = |
| static_cast<grpc_pollset*>(gpr_zalloc(grpc_pollset_size())); |
| grpc_pollset_init(pollset, &pr.mu); |
| pr.pops = grpc_polling_entity_create_from_pollset(pollset); |
| shutdown_closure = GRPC_CLOSURE_CREATE(destroy_pops_and_shutdown, &pr.pops, |
| grpc_schedule_on_exec_ctx); |
| |
| std::string path = absl::StrFormat("/drop/%d", port); |
| auto uri = grpc_core::URI::Create("https", GRPC_PORT_SERVER_ADDRESS, path, |
| {} /* query params */, "" /* fragment */); |
| GPR_ASSERT(uri.ok()); |
| auto http_request = grpc_core::HttpRequest::Get( |
| std::move(*uri), nullptr /* channel args */, &pr.pops, &req, |
| grpc_core::ExecCtx::Get()->Now() + grpc_core::Duration::Seconds(30), |
| GRPC_CLOSURE_CREATE(freed_port_from_server, &pr, |
| grpc_schedule_on_exec_ctx), |
| &rsp, |
| grpc_core::RefCountedPtr<grpc_channel_credentials>( |
| grpc_insecure_credentials_create())); |
| http_request->Start(); |
| grpc_core::ExecCtx::Get()->Flush(); |
| gpr_mu_lock(pr.mu); |
| while (!pr.done) { |
| grpc_pollset_worker* worker = nullptr; |
| if (!GRPC_LOG_IF_ERROR( |
| "pollset_work", |
| grpc_pollset_work(grpc_polling_entity_pollset(&pr.pops), &worker, |
| grpc_core::ExecCtx::Get()->Now() + |
| grpc_core::Duration::Seconds(1)))) { |
| pr.done = 1; |
| } |
| } |
| gpr_mu_unlock(pr.mu); |
| |
| grpc_pollset_shutdown(grpc_polling_entity_pollset(&pr.pops), |
| shutdown_closure); |
| |
| grpc_http_response_destroy(&rsp); |
| } |
| grpc_shutdown(); |
| } |
| |
| typedef struct portreq { |
| gpr_mu* mu = nullptr; |
| grpc_polling_entity pops = {}; |
| int port = 0; |
| int retries = 0; |
| char* server = nullptr; |
| grpc_http_response response = {}; |
| grpc_core::OrphanablePtr<grpc_core::HttpRequest> http_request; |
| } portreq; |
| |
| static void got_port_from_server(void* arg, grpc_error_handle error) { |
| size_t i; |
| int port = 0; |
| portreq* pr = static_cast<portreq*>(arg); |
| pr->http_request.reset(); |
| int failed = 0; |
| grpc_http_response* response = &pr->response; |
| |
| if (!GRPC_ERROR_IS_NONE(error)) { |
| failed = 1; |
| gpr_log(GPR_DEBUG, "failed port pick from server: retrying [%s]", |
| grpc_error_std_string(error).c_str()); |
| } else if (response->status != 200) { |
| failed = 1; |
| gpr_log(GPR_DEBUG, "failed port pick from server: status=%d", |
| response->status); |
| } |
| |
| if (failed) { |
| grpc_http_request req; |
| memset(&req, 0, sizeof(req)); |
| if (pr->retries >= 5) { |
| gpr_mu_lock(pr->mu); |
| pr->port = 0; |
| GRPC_LOG_IF_ERROR( |
| "pollset_kick", |
| grpc_pollset_kick(grpc_polling_entity_pollset(&pr->pops), nullptr)); |
| gpr_mu_unlock(pr->mu); |
| return; |
| } |
| GPR_ASSERT(pr->retries < 10); |
| gpr_sleep_until(gpr_time_add( |
| gpr_now(GPR_CLOCK_REALTIME), |
| gpr_time_from_millis( |
| static_cast<int64_t>( |
| 1000.0 * (1 + pow(1.3, pr->retries) * rand() / RAND_MAX)), |
| GPR_TIMESPAN))); |
| pr->retries++; |
| grpc_http_response_destroy(&pr->response); |
| pr->response = {}; |
| auto uri = grpc_core::URI::Create("http", pr->server, "/get", |
| {} /* query params */, "" /* fragment */); |
| GPR_ASSERT(uri.ok()); |
| pr->http_request = grpc_core::HttpRequest::Get( |
| std::move(*uri), nullptr /* channel args */, &pr->pops, &req, |
| grpc_core::ExecCtx::Get()->Now() + grpc_core::Duration::Seconds(30), |
| GRPC_CLOSURE_CREATE(got_port_from_server, pr, |
| grpc_schedule_on_exec_ctx), |
| &pr->response, |
| grpc_core::RefCountedPtr<grpc_channel_credentials>( |
| grpc_insecure_credentials_create())); |
| pr->http_request->Start(); |
| return; |
| } |
| GPR_ASSERT(response); |
| GPR_ASSERT(response->status == 200); |
| for (i = 0; i < response->body_length; i++) { |
| GPR_ASSERT(response->body[i] >= '0' && response->body[i] <= '9'); |
| port = port * 10 + response->body[i] - '0'; |
| } |
| GPR_ASSERT(port > 1024); |
| gpr_mu_lock(pr->mu); |
| pr->port = port; |
| GRPC_LOG_IF_ERROR( |
| "pollset_kick", |
| grpc_pollset_kick(grpc_polling_entity_pollset(&pr->pops), nullptr)); |
| gpr_mu_unlock(pr->mu); |
| } |
| |
| int grpc_pick_port_using_server(void) { |
| grpc_http_request req; |
| portreq pr; |
| grpc_closure* shutdown_closure; |
| |
| grpc_init(); |
| { |
| grpc_core::ExecCtx exec_ctx; |
| pr = {}; |
| memset(&req, 0, sizeof(req)); |
| grpc_pollset* pollset = |
| static_cast<grpc_pollset*>(gpr_zalloc(grpc_pollset_size())); |
| grpc_pollset_init(pollset, &pr.mu); |
| pr.pops = grpc_polling_entity_create_from_pollset(pollset); |
| shutdown_closure = GRPC_CLOSURE_CREATE(destroy_pops_and_shutdown, &pr.pops, |
| grpc_schedule_on_exec_ctx); |
| pr.port = -1; |
| pr.server = const_cast<char*>(GRPC_PORT_SERVER_ADDRESS); |
| auto uri = grpc_core::URI::Create("http", GRPC_PORT_SERVER_ADDRESS, "/get", |
| {} /* query params */, "" /* fragment */); |
| GPR_ASSERT(uri.ok()); |
| auto http_request = grpc_core::HttpRequest::Get( |
| std::move(*uri), nullptr /* channel args */, &pr.pops, &req, |
| grpc_core::ExecCtx::Get()->Now() + grpc_core::Duration::Seconds(30), |
| GRPC_CLOSURE_CREATE(got_port_from_server, &pr, |
| grpc_schedule_on_exec_ctx), |
| &pr.response, |
| grpc_core::RefCountedPtr<grpc_channel_credentials>( |
| grpc_insecure_credentials_create())); |
| http_request->Start(); |
| grpc_core::ExecCtx::Get()->Flush(); |
| gpr_mu_lock(pr.mu); |
| while (pr.port == -1) { |
| grpc_pollset_worker* worker = nullptr; |
| if (!GRPC_LOG_IF_ERROR( |
| "pollset_work", |
| grpc_pollset_work(grpc_polling_entity_pollset(&pr.pops), &worker, |
| grpc_core::ExecCtx::Get()->Now() + |
| grpc_core::Duration::Seconds(1)))) { |
| pr.port = 0; |
| } |
| } |
| gpr_mu_unlock(pr.mu); |
| |
| grpc_http_response_destroy(&pr.response); |
| grpc_pollset_shutdown(grpc_polling_entity_pollset(&pr.pops), |
| shutdown_closure); |
| |
| grpc_core::ExecCtx::Get()->Flush(); |
| } |
| grpc_shutdown(); |
| |
| return pr.port; |
| } |
| |
| #endif // GRPC_TEST_PICK_PORT |