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/*
*
* 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 <string.h>
#include <node.h>
#include <nan.h>
#include "grpc/grpc.h"
#include "grpc/support/slice.h"
#include "byte_buffer.h"
namespace grpc {
namespace node {
using v8::Context;
using v8::Function;
using v8::Handle;
using v8::Object;
using v8::Number;
using v8::Value;
grpc_byte_buffer *BufferToByteBuffer(Handle<Value> buffer) {
NanScope();
int length = ::node::Buffer::Length(buffer);
char *data = ::node::Buffer::Data(buffer);
gpr_slice slice = gpr_slice_malloc(length);
memcpy(GPR_SLICE_START_PTR(slice), data, length);
grpc_byte_buffer *byte_buffer(grpc_byte_buffer_create(&slice, 1));
gpr_slice_unref(slice);
return byte_buffer;
}
Handle<Value> ByteBufferToBuffer(grpc_byte_buffer *buffer) {
NanEscapableScope();
if (buffer == NULL) {
return NanEscapeScope(NanNull());
}
size_t length = grpc_byte_buffer_length(buffer);
char *result = reinterpret_cast<char *>(calloc(length, sizeof(char)));
size_t offset = 0;
grpc_byte_buffer_reader *reader = grpc_byte_buffer_reader_create(buffer);
gpr_slice next;
while (grpc_byte_buffer_reader_next(reader, &next) != 0) {
memcpy(result + offset, GPR_SLICE_START_PTR(next), GPR_SLICE_LENGTH(next));
offset += GPR_SLICE_LENGTH(next);
}
return NanEscapeScope(MakeFastBuffer(NanNewBufferHandle(result, length)));
}
Handle<Value> MakeFastBuffer(Handle<Value> slowBuffer) {
NanEscapableScope();
Handle<Object> globalObj = NanGetCurrentContext()->Global();
Handle<Function> bufferConstructor = Handle<Function>::Cast(
globalObj->Get(NanNew("Buffer")));
Handle<Value> consArgs[3] = {
slowBuffer,
NanNew<Number>(::node::Buffer::Length(slowBuffer)),
NanNew<Number>(0)
};
Handle<Object> fastBuffer = bufferConstructor->NewInstance(3, consArgs);
return NanEscapeScope(fastBuffer);
}
} // namespace node
} // namespace grpc
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