Line data    Source code

       1             : /*
       2             :  *
       3             :  * Copyright 2015, Google Inc.
       4             :  * All rights reserved.
       5             :  *
       6             :  * Redistribution and use in source and binary forms, with or without
       7             :  * modification, are permitted provided that the following conditions are
       8             :  * met:
       9             :  *
      10             :  *     * Redistributions of source code must retain the above copyright
      11             :  * notice, this list of conditions and the following disclaimer.
      12             :  *     * Redistributions in binary form must reproduce the above
      13             :  * copyright notice, this list of conditions and the following disclaimer
      14             :  * in the documentation and/or other materials provided with the
      15             :  * distribution.
      16             :  *     * Neither the name of Google Inc. nor the names of its
      17             :  * contributors may be used to endorse or promote products derived from
      18             :  * this software without specific prior written permission.
      19             :  *
      20             :  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      21             :  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      22             :  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      23             :  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      24             :  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      25             :  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      26             :  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      27             :  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      28             :  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      29             :  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      30             :  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      31             :  *
      32             :  */
      33             : 
      34             : #include <grpc++/client_context.h>
      35             : 
      36             : #include <grpc/grpc.h>
      37             : #include <grpc/support/alloc.h>
      38             : #include <grpc/support/string_util.h>
      39             : #include <grpc++/security/credentials.h>
      40             : #include <grpc++/server_context.h>
      41             : #include <grpc++/support/time.h>
      42             : 
      43             : #include "src/core/channel/compress_filter.h"
      44             : #include "src/cpp/common/create_auth_context.h"
      45             : 
      46             : namespace grpc {
      47             : 
      48     1645646 : ClientContext::ClientContext()
      49             :     : initial_metadata_received_(false),
      50             :       call_(nullptr),
      51             :       call_canceled_(false),
      52             :       deadline_(gpr_inf_future(GPR_CLOCK_REALTIME)),
      53     1645646 :       propagate_from_call_(nullptr) {}
      54             : 
      55     3289980 : ClientContext::~ClientContext() {
      56     1645013 :   if (call_) {
      57     1646787 :     grpc_call_destroy(call_);
      58             :   }
      59     1646808 : }
      60             : 
      61         216 : std::unique_ptr<ClientContext> ClientContext::FromServerContext(
      62             :     const ServerContext& context, PropagationOptions options) {
      63         216 :   std::unique_ptr<ClientContext> ctx(new ClientContext);
      64         216 :   ctx->propagate_from_call_ = context.call_;
      65         216 :   ctx->propagation_options_ = options;
      66         216 :   return ctx;
      67             : }
      68             : 
      69         417 : void ClientContext::AddMetadata(const grpc::string& meta_key,
      70             :                                 const grpc::string& meta_value) {
      71         417 :   send_initial_metadata_.insert(std::make_pair(meta_key, meta_value));
      72         417 : }
      73             : 
      74     1646419 : void ClientContext::set_call(grpc_call* call,
      75             :                              const std::shared_ptr<Channel>& channel) {
      76     1646419 :   grpc::unique_lock<grpc::mutex> lock(mu_);
      77     1646772 :   GPR_ASSERT(call_ == nullptr);
      78     1646772 :   call_ = call;
      79     1646772 :   channel_ = channel;
      80     1646813 :   if (creds_ && !creds_->ApplyToCall(call_)) {
      81             :     grpc_call_cancel_with_status(call, GRPC_STATUS_CANCELLED,
      82           0 :                                  "Failed to set credentials to rpc.", nullptr);
      83             :   }
      84     1646479 :   if (call_canceled_) {
      85           2 :     grpc_call_cancel(call_, nullptr);
      86     1646479 :   }
      87     1646762 : }
      88             : 
      89         405 : void ClientContext::set_compression_algorithm(
      90             :     grpc_compression_algorithm algorithm) {
      91         405 :   char* algorithm_name = nullptr;
      92         405 :   if (!grpc_compression_algorithm_name(algorithm, &algorithm_name)) {
      93             :     gpr_log(GPR_ERROR, "Name for compression algorithm '%d' unknown.",
      94           0 :             algorithm);
      95           0 :     abort();
      96             :   }
      97         405 :   GPR_ASSERT(algorithm_name != nullptr);
      98         405 :   AddMetadata(GRPC_COMPRESS_REQUEST_ALGORITHM_KEY, algorithm_name);
      99         405 : }
     100             : 
     101           1 : std::shared_ptr<const AuthContext> ClientContext::auth_context() const {
     102           1 :   if (auth_context_.get() == nullptr) {
     103           1 :     auth_context_ = CreateAuthContext(call_);
     104             :   }
     105           1 :   return auth_context_;
     106             : }
     107             : 
     108          14 : void ClientContext::TryCancel() {
     109          14 :   grpc::unique_lock<grpc::mutex> lock(mu_);
     110          14 :   if (call_) {
     111          12 :     grpc_call_cancel(call_, nullptr);
     112             :   } else {
     113           2 :     call_canceled_ = true;
     114          14 :   }
     115          14 : }
     116             : 
     117           4 : grpc::string ClientContext::peer() const {
     118           4 :   grpc::string peer;
     119           4 :   if (call_) {
     120           4 :     char* c_peer = grpc_call_get_peer(call_);
     121           4 :     peer = c_peer;
     122           4 :     gpr_free(c_peer);
     123             :   }
     124           4 :   return peer;
     125             : }
     126             : 
     127             : }  // namespace grpc