mirror of https://github.com/grpc/grpc.git
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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71 lines
2.8 KiB
71 lines
2.8 KiB
/* |
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* |
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* Copyright 2016, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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/* |
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* A collection of 'macros' that help navigating the grpc object hierarchy |
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* Not intended to be robust for main-line code, often cuts across abstraction |
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* boundaries. |
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*/ |
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#include <stdio.h> |
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#include "src/core/ext/filters/client_channel/client_channel.h" |
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#include "src/core/ext/transport/chttp2/transport/internal.h" |
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#include "src/core/lib/channel/connected_channel.h" |
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#include "src/core/lib/surface/call.h" |
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void grpc_summon_debugger_macros() {} |
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grpc_stream *grpc_transport_stream_from_call(grpc_call *call) { |
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grpc_call_stack *cs = grpc_call_get_call_stack(call); |
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for (;;) { |
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grpc_call_element *el = grpc_call_stack_element(cs, cs->count - 1); |
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if (el->filter == &grpc_client_channel_filter) { |
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grpc_subchannel_call *scc = grpc_client_channel_get_subchannel_call(el); |
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if (scc == NULL) { |
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fprintf(stderr, "No subchannel-call"); |
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return NULL; |
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} |
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cs = grpc_subchannel_call_get_call_stack(scc); |
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} else if (el->filter == &grpc_connected_filter) { |
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return grpc_connected_channel_get_stream(el); |
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} else { |
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fprintf(stderr, "Unrecognized filter: %s", el->filter->name); |
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return NULL; |
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} |
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} |
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} |
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grpc_chttp2_stream *grpc_chttp2_stream_from_call(grpc_call *call) { |
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return (grpc_chttp2_stream *)grpc_transport_stream_from_call(call); |
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}
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