Initial checkin of gRPC to third_party/

third_party/grpc/src/cpp/common/call.cc

+/*
+ *
+ * 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++/impl/call.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc++/channel.h>
+#include <grpc++/client_context.h>
+#include <grpc++/support/byte_buffer.h>
+#include "src/core/profiling/timers.h"
+
+namespace grpc {
+
+void FillMetadataMap(
+    grpc_metadata_array* arr,
+    std::multimap<grpc::string_ref, grpc::string_ref>* metadata) {
+  for (size_t i = 0; i < arr->count; i++) {
+    // TODO(yangg) handle duplicates?
+    metadata->insert(std::pair<grpc::string_ref, grpc::string_ref>(
+        arr->metadata[i].key, grpc::string_ref(arr->metadata[i].value,
+                                               arr->metadata[i].value_length)));
+  }
+  grpc_metadata_array_destroy(arr);
+  grpc_metadata_array_init(arr);
+}
+
+// TODO(yangg) if the map is changed before we send, the pointers will be a
+// mess. Make sure it does not happen.
+grpc_metadata* FillMetadataArray(
+    const std::multimap<grpc::string, grpc::string>& metadata) {
+  if (metadata.empty()) {
+    return nullptr;
+  }
+  grpc_metadata* metadata_array =
+      (grpc_metadata*)gpr_malloc(metadata.size() * sizeof(grpc_metadata));
+  size_t i = 0;
+  for (auto iter = metadata.cbegin(); iter != metadata.cend(); ++iter, ++i) {
+    metadata_array[i].key = iter->first.c_str();
+    metadata_array[i].value = iter->second.c_str();
+    metadata_array[i].value_length = iter->second.size();
+  }
+  return metadata_array;
+}
+
+Call::Call(grpc_call* call, CallHook* call_hook, CompletionQueue* cq)
+    : call_hook_(call_hook), cq_(cq), call_(call), max_message_size_(-1) {}
+
+Call::Call(grpc_call* call, CallHook* call_hook, CompletionQueue* cq,
+           int max_message_size)
+    : call_hook_(call_hook),
+      cq_(cq),
+      call_(call),
+      max_message_size_(max_message_size) {}
+
+void Call::PerformOps(CallOpSetInterface* ops) {
+  if (max_message_size_ > 0) {
+    ops->set_max_message_size(max_message_size_);
+  }
+  call_hook_->PerformOpsOnCall(ops, this);
+}
+
+}  // namespace grpc