| /* |
| * |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * 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 |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #include <grpc/support/port_platform.h> |
| #include "test/core/util/test_config.h" |
| |
| #ifdef GRPC_TEST_PICK_PORT |
| #include "test/core/util/port_server_client.h" |
| |
| #include <math.h> |
| #include <string.h> |
| |
| #include <grpc/grpc.h> |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/string_util.h> |
| #include <grpc/support/sync.h> |
| #include <grpc/support/time.h> |
| |
| #include "src/core/lib/http/httpcli.h" |
| |
| typedef struct freereq { |
| gpr_mu *mu; |
| grpc_polling_entity pops; |
| int done; |
| } freereq; |
| |
| static void destroy_pops_and_shutdown(grpc_exec_ctx *exec_ctx, void *p, |
| grpc_error *error) { |
| grpc_pollset *pollset = grpc_polling_entity_pollset(p); |
| grpc_pollset_destroy(pollset); |
| gpr_free(pollset); |
| grpc_shutdown(); |
| } |
| |
| static void freed_port_from_server(grpc_exec_ctx *exec_ctx, void *arg, |
| grpc_error *error) { |
| freereq *pr = arg; |
| gpr_mu_lock(pr->mu); |
| pr->done = 1; |
| GRPC_LOG_IF_ERROR( |
| "pollset_kick", |
| grpc_pollset_kick(grpc_polling_entity_pollset(&pr->pops), NULL)); |
| gpr_mu_unlock(pr->mu); |
| } |
| |
| void grpc_free_port_using_server(char *server, int port) { |
| grpc_httpcli_context context; |
| grpc_httpcli_request req; |
| grpc_httpcli_response rsp; |
| freereq pr; |
| char *path; |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| grpc_closure *shutdown_closure; |
| |
| grpc_init(); |
| |
| memset(&pr, 0, sizeof(pr)); |
| memset(&req, 0, sizeof(req)); |
| memset(&rsp, 0, sizeof(rsp)); |
| |
| grpc_pollset *pollset = gpr_malloc(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); |
| |
| req.host = server; |
| gpr_asprintf(&path, "/drop/%d", port); |
| req.http.path = path; |
| |
| grpc_httpcli_context_init(&context); |
| grpc_httpcli_get(&exec_ctx, &context, &pr.pops, &req, |
| GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10), |
| grpc_closure_create(freed_port_from_server, &pr), &rsp); |
| gpr_mu_lock(pr.mu); |
| while (!pr.done) { |
| grpc_pollset_worker *worker = NULL; |
| if (!GRPC_LOG_IF_ERROR( |
| "pollset_work", |
| grpc_pollset_work(&exec_ctx, grpc_polling_entity_pollset(&pr.pops), |
| &worker, gpr_now(GPR_CLOCK_MONOTONIC), |
| GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1)))) { |
| pr.done = 1; |
| } |
| } |
| gpr_mu_unlock(pr.mu); |
| |
| grpc_httpcli_context_destroy(&context); |
| grpc_exec_ctx_finish(&exec_ctx); |
| grpc_pollset_shutdown(&exec_ctx, grpc_polling_entity_pollset(&pr.pops), |
| shutdown_closure); |
| grpc_exec_ctx_finish(&exec_ctx); |
| gpr_free(path); |
| grpc_http_response_destroy(&rsp); |
| } |
| |
| typedef struct portreq { |
| gpr_mu *mu; |
| grpc_polling_entity pops; |
| int port; |
| int retries; |
| char *server; |
| grpc_httpcli_context *ctx; |
| grpc_httpcli_response response; |
| } portreq; |
| |
| static void got_port_from_server(grpc_exec_ctx *exec_ctx, void *arg, |
| grpc_error *error) { |
| size_t i; |
| int port = 0; |
| portreq *pr = arg; |
| int failed = 0; |
| grpc_httpcli_response *response = &pr->response; |
| |
| if (error != GRPC_ERROR_NONE) { |
| failed = 1; |
| const char *msg = grpc_error_string(error); |
| gpr_log(GPR_DEBUG, "failed port pick from server: retrying [%s]", msg); |
| grpc_error_free_string(msg); |
| } else if (response->status != 200) { |
| failed = 1; |
| gpr_log(GPR_DEBUG, "failed port pick from server: status=%d", |
| response->status); |
| } |
| |
| if (failed) { |
| grpc_httpcli_request req; |
| memset(&req, 0, sizeof(req)); |
| GPR_ASSERT(pr->retries < 10); |
| gpr_sleep_until(gpr_time_add( |
| gpr_now(GPR_CLOCK_REALTIME), |
| gpr_time_from_millis( |
| (int64_t)(1000.0 * (1 + pow(1.3, pr->retries) * rand() / RAND_MAX)), |
| GPR_TIMESPAN))); |
| pr->retries++; |
| req.host = pr->server; |
| req.http.path = "/get"; |
| grpc_http_response_destroy(&pr->response); |
| memset(&pr->response, 0, sizeof(pr->response)); |
| grpc_httpcli_get(exec_ctx, pr->ctx, &pr->pops, &req, |
| GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10), |
| grpc_closure_create(got_port_from_server, pr), |
| &pr->response); |
| 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), NULL)); |
| gpr_mu_unlock(pr->mu); |
| } |
| |
| int grpc_pick_port_using_server(char *server) { |
| grpc_httpcli_context context; |
| grpc_httpcli_request req; |
| portreq pr; |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| grpc_closure *shutdown_closure; |
| |
| grpc_init(); |
| |
| memset(&pr, 0, sizeof(pr)); |
| memset(&req, 0, sizeof(req)); |
| grpc_pollset *pollset = gpr_malloc(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); |
| pr.port = -1; |
| pr.server = server; |
| pr.ctx = &context; |
| |
| req.host = server; |
| req.http.path = "/get"; |
| |
| grpc_httpcli_context_init(&context); |
| grpc_httpcli_get( |
| &exec_ctx, &context, &pr.pops, &req, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10), |
| grpc_closure_create(got_port_from_server, &pr), &pr.response); |
| grpc_exec_ctx_finish(&exec_ctx); |
| gpr_mu_lock(pr.mu); |
| while (pr.port == -1) { |
| grpc_pollset_worker *worker = NULL; |
| if (!GRPC_LOG_IF_ERROR( |
| "pollset_work", |
| grpc_pollset_work(&exec_ctx, grpc_polling_entity_pollset(&pr.pops), |
| &worker, gpr_now(GPR_CLOCK_MONOTONIC), |
| GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1)))) { |
| pr.port = 0; |
| } |
| } |
| gpr_mu_unlock(pr.mu); |
| |
| grpc_http_response_destroy(&pr.response); |
| grpc_httpcli_context_destroy(&context); |
| grpc_pollset_shutdown(&exec_ctx, grpc_polling_entity_pollset(&pr.pops), |
| shutdown_closure); |
| grpc_exec_ctx_finish(&exec_ctx); |
| |
| return pr.port; |
| } |
| |
| #endif // GRPC_TEST_PICK_PORT |