Craig Tiller
9 years ago
parent
e1719ee01d
commit
95eeed7590
14 changed files with 0 additions and 203 deletions
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/*
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* |
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* Copyright 2015, 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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#include "src/core/channel/noop_filter.h" |
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#include <grpc/support/log.h> |
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typedef struct call_data { |
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int unused; /* C89 requires at least one struct element */ |
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} call_data; |
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typedef struct channel_data { |
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int unused; /* C89 requires at least one struct element */ |
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} channel_data; |
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/* used to silence 'variable not used' warnings */ |
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static void ignore_unused(void *ignored) {} |
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static void noop_mutate_op(grpc_call_element *elem, |
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grpc_transport_stream_op *op) { |
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/* grab pointers to our data from the call element */ |
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call_data *calld = elem->call_data; |
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channel_data *channeld = elem->channel_data; |
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ignore_unused(calld); |
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ignore_unused(channeld); |
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/* do nothing */ |
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} |
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/* Called either:
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- in response to an API call (or similar) from above, to send something |
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- a network event (or similar) from below, to receive something |
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op contains type and call direction information, in addition to the data |
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that is being sent or received. */ |
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static void noop_start_transport_stream_op(grpc_exec_ctx *exec_ctx, |
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grpc_call_element *elem, |
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grpc_transport_stream_op *op) { |
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noop_mutate_op(elem, op); |
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/* pass control down the stack */ |
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grpc_call_next_op(exec_ctx, elem, op); |
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} |
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/* Constructor for call_data */ |
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static void init_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, |
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grpc_call_element_args *args) { |
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/* grab pointers to our data from the call element */ |
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call_data *calld = elem->call_data; |
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channel_data *channeld = elem->channel_data; |
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/* initialize members */ |
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calld->unused = channeld->unused; |
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} |
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/* Destructor for call_data */ |
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static void destroy_call_elem(grpc_exec_ctx *exec_ctx, |
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grpc_call_element *elem) {} |
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/* Constructor for channel_data */ |
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static void init_channel_elem(grpc_exec_ctx *exec_ctx, |
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grpc_channel_element *elem, |
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grpc_channel_element_args *args) { |
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/* grab pointers to our data from the channel element */ |
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channel_data *channeld = elem->channel_data; |
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/* The last filter tends to be implemented differently to
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handle the case that there's no 'next' filter to call on the down |
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path */ |
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GPR_ASSERT(!args->is_last); |
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/* initialize members */ |
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channeld->unused = 0; |
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} |
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/* Destructor for channel data */ |
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static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, |
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grpc_channel_element *elem) { |
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/* grab pointers to our data from the channel element */ |
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channel_data *channeld = elem->channel_data; |
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ignore_unused(channeld); |
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} |
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const grpc_channel_filter grpc_no_op_filter = { |
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noop_start_transport_stream_op, grpc_channel_next_op, sizeof(call_data), |
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init_call_elem, grpc_call_stack_ignore_set_pollset, destroy_call_elem, |
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sizeof(channel_data), init_channel_elem, destroy_channel_elem, |
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grpc_call_next_get_peer, "no-op"}; |
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@ -1,44 +0,0 @@ |
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/*
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* |
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* Copyright 2015, 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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#ifndef GRPC_INTERNAL_CORE_CHANNEL_NOOP_FILTER_H |
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#define GRPC_INTERNAL_CORE_CHANNEL_NOOP_FILTER_H |
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#include "src/core/channel/channel_stack.h" |
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/* No-op filter: simply takes everything it's given, and passes it on to the
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next filter. Exists simply as a starting point that others can take and |
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customize for their own filters */ |
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extern const grpc_channel_filter grpc_no_op_filter; |
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#endif /* GRPC_INTERNAL_CORE_CHANNEL_NOOP_FILTER_H */ |
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