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/*
*
* Copyright 2015-2016, 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/httpcli/httpcli.h"
typedef struct freereq {
gpr_mu *mu;
grpc_pollset *pollset;
int done;
} freereq;
static void destroy_pollset_and_shutdown(grpc_exec_ctx *exec_ctx, void *p,
bool success) {
grpc_pollset_destroy(p);
gpr_free(p);
grpc_shutdown();
}
static void freed_port_from_server(grpc_exec_ctx *exec_ctx, void *arg,
const grpc_httpcli_response *response) {
freereq *pr = arg;
gpr_mu_lock(pr->mu);
pr->done = 1;
grpc_pollset_kick(pr->pollset, NULL);
gpr_mu_unlock(pr->mu);
}
void grpc_free_port_using_server(char *server, int port) {
grpc_httpcli_context context;
grpc_httpcli_request req;
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));
pr.pollset = gpr_malloc(grpc_pollset_size());
grpc_pollset_init(pr.pollset, &pr.mu);
shutdown_closure =
grpc_closure_create(destroy_pollset_and_shutdown, pr.pollset);
req.host = server;
gpr_asprintf(&path, "/drop/%d", port);
req.path = path;
grpc_httpcli_context_init(&context);
grpc_httpcli_get(&exec_ctx, &context, pr.pollset, &req,
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10), freed_port_from_server,
&pr);
gpr_mu_lock(pr.mu);
while (!pr.done) {
grpc_pollset_worker *worker = NULL;
grpc_pollset_work(&exec_ctx, pr.pollset, &worker,
gpr_now(GPR_CLOCK_MONOTONIC),
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1));
}
gpr_mu_unlock(pr.mu);
grpc_httpcli_context_destroy(&context);
grpc_exec_ctx_finish(&exec_ctx);
grpc_pollset_shutdown(&exec_ctx, pr.pollset, shutdown_closure);
grpc_exec_ctx_finish(&exec_ctx);
gpr_free(path);
}
typedef struct portreq {
gpr_mu *mu;
grpc_pollset *pollset;
int port;
int retries;
char *server;
grpc_httpcli_context *ctx;
} portreq;
static void got_port_from_server(grpc_exec_ctx *exec_ctx, void *arg,
const grpc_httpcli_response *response) {
size_t i;
int port = 0;
portreq *pr = arg;
int failed = 0;
if (!response) {
failed = 1;
gpr_log(GPR_DEBUG,
"failed port pick from server: retrying [response=NULL]");
} 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.path = "/get";
grpc_httpcli_get(exec_ctx, pr->ctx, pr->pollset, &req,
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10), got_port_from_server,
pr);
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_pollset_kick(pr->pollset, 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));
pr.pollset = gpr_malloc(grpc_pollset_size());
grpc_pollset_init(pr.pollset, &pr.mu);
shutdown_closure =
grpc_closure_create(destroy_pollset_and_shutdown, pr.pollset);
pr.port = -1;
pr.server = server;
pr.ctx = &context;
req.host = server;
req.path = "/get";
grpc_httpcli_context_init(&context);
grpc_httpcli_get(&exec_ctx, &context, pr.pollset, &req,
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10), got_port_from_server,
&pr);
grpc_exec_ctx_finish(&exec_ctx);
gpr_mu_lock(pr.mu);
while (pr.port == -1) {
grpc_pollset_worker *worker = NULL;
grpc_pollset_work(&exec_ctx, pr.pollset, &worker,
gpr_now(GPR_CLOCK_MONOTONIC),
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1));
}
gpr_mu_unlock(pr.mu);
grpc_httpcli_context_destroy(&context);
grpc_pollset_shutdown(&exec_ctx, pr.pollset, shutdown_closure);
grpc_exec_ctx_finish(&exec_ctx);
return pr.port;
}
#endif // GRPC_TEST_PICK_PORT
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