mirror of https://github.com/grpc/grpc.git
Craig Tiller
10 years ago
parent
65582323ad
commit
83f88d90b9
28 changed files with 490 additions and 932 deletions
@ -1,137 +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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#include "src/core/channel/http_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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/* 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 call_op(grpc_call_element *elem, grpc_call_element *from_elem, |
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grpc_call_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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GRPC_CALL_LOG_OP(GPR_INFO, elem, op); |
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ignore_unused(calld); |
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ignore_unused(channeld); |
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switch (op->type) { |
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default: |
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/* pass control up or down the stack depending on op->dir */ |
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grpc_call_next_op(elem, op); |
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break; |
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} |
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} |
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/* Called on special channel events, such as disconnection or new incoming
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calls on the server */ |
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static void channel_op(grpc_channel_element *elem, |
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grpc_channel_element *from_elem, grpc_channel_op *op) { |
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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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switch (op->type) { |
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default: |
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/* pass control up or down the stack depending on op->dir */ |
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grpc_channel_next_op(elem, op); |
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break; |
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} |
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} |
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/* Constructor for call_data */ |
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static void init_call_elem(grpc_call_element *elem, |
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const void *server_transport_data) { |
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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_call_element *elem) { |
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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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} |
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/* Constructor for channel_data */ |
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static void init_channel_elem(grpc_channel_element *elem, |
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const grpc_channel_args *args, grpc_mdctx *mdctx, |
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int is_first, int is_last) { |
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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 first and the last filters tend to be implemented differently to
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handle the case that there's no 'next' filter to call on the up or down |
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path */ |
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GPR_ASSERT(!is_first); |
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GPR_ASSERT(!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_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_http_filter = { |
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call_op, channel_op, sizeof(call_data), |
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init_call_elem, destroy_call_elem, sizeof(channel_data), |
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init_channel_elem, destroy_channel_elem, "http"}; |
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@ -1,43 +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_HTTP_FILTER_H |
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#define GRPC_INTERNAL_CORE_CHANNEL_HTTP_FILTER_H |
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#include "src/core/channel/channel_stack.h" |
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/* Processes metadata that is common to both client and server for HTTP2
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transports. */ |
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extern const grpc_channel_filter grpc_http_filter; |
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#endif /* GRPC_INTERNAL_CORE_CHANNEL_HTTP_FILTER_H */ |
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@ -0,0 +1,141 @@ |
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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/channel_stack.h" |
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#include <stdarg.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include "src/core/support/string.h" |
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#include <grpc/support/alloc.h> |
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#include <grpc/support/useful.h> |
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static void put_metadata(gpr_strvec *b, grpc_mdelem *md) { |
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gpr_strvec_add(b, gpr_strdup(" key=")); |
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gpr_strvec_add( |
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b, gpr_hexdump((char *)GPR_SLICE_START_PTR(md->key->slice), |
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GPR_SLICE_LENGTH(md->key->slice), GPR_HEXDUMP_PLAINTEXT)); |
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gpr_strvec_add(b, gpr_strdup(" value=")); |
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gpr_strvec_add(b, gpr_hexdump((char *)GPR_SLICE_START_PTR(md->value->slice), |
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GPR_SLICE_LENGTH(md->value->slice), |
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GPR_HEXDUMP_PLAINTEXT)); |
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} |
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static void put_metadata_list(gpr_strvec *b, grpc_metadata_batch md) { |
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grpc_linked_mdelem *m; |
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for (m = md.list.head; m != NULL; m = m->next) { |
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put_metadata(b, m->md); |
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} |
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if (gpr_time_cmp(md.deadline, gpr_inf_future) != 0) { |
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char *tmp; |
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gpr_asprintf(&tmp, " deadline=%d.%09d", md.deadline.tv_sec, |
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md.deadline.tv_nsec); |
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gpr_strvec_add(b, tmp); |
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} |
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} |
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char *grpc_call_op_string(grpc_call_op *op) { |
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char *tmp; |
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char *out; |
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gpr_strvec b; |
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gpr_strvec_init(&b); |
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switch (op->dir) { |
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case GRPC_CALL_DOWN: |
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gpr_strvec_add(&b, gpr_strdup(">")); |
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break; |
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case GRPC_CALL_UP: |
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gpr_strvec_add(&b, gpr_strdup("<")); |
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break; |
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} |
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switch (op->type) { |
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case GRPC_SEND_METADATA: |
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gpr_strvec_add(&b, gpr_strdup("SEND_METADATA")); |
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put_metadata_list(&b, op->data.metadata); |
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break; |
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case GRPC_SEND_MESSAGE: |
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gpr_strvec_add(&b, gpr_strdup("SEND_MESSAGE")); |
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break; |
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case GRPC_SEND_PREFORMATTED_MESSAGE: |
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gpr_strvec_add(&b, gpr_strdup("SEND_PREFORMATTED_MESSAGE")); |
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break; |
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case GRPC_SEND_FINISH: |
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gpr_strvec_add(&b, gpr_strdup("SEND_FINISH")); |
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break; |
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case GRPC_REQUEST_DATA: |
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gpr_strvec_add(&b, gpr_strdup("REQUEST_DATA")); |
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break; |
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case GRPC_RECV_METADATA: |
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gpr_strvec_add(&b, gpr_strdup("RECV_METADATA")); |
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put_metadata_list(&b, op->data.metadata); |
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break; |
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case GRPC_RECV_MESSAGE: |
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gpr_strvec_add(&b, gpr_strdup("RECV_MESSAGE")); |
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break; |
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case GRPC_RECV_HALF_CLOSE: |
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gpr_strvec_add(&b, gpr_strdup("RECV_HALF_CLOSE")); |
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break; |
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case GRPC_RECV_FINISH: |
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gpr_strvec_add(&b, gpr_strdup("RECV_FINISH")); |
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break; |
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case GRPC_RECV_SYNTHETIC_STATUS: |
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gpr_asprintf(&tmp, "RECV_SYNTHETIC_STATUS status=%d message='%s'", |
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op->data.synthetic_status.status, |
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op->data.synthetic_status.message); |
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gpr_strvec_add(&b, tmp); |
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break; |
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case GRPC_CANCEL_OP: |
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gpr_strvec_add(&b, gpr_strdup("CANCEL_OP")); |
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break; |
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} |
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gpr_asprintf(&tmp, " flags=0x%08x", op->flags); |
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gpr_strvec_add(&b, tmp); |
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if (op->bind_pollset) { |
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gpr_strvec_add(&b, gpr_strdup("bind_pollset")); |
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} |
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out = gpr_strvec_flatten(&b, NULL); |
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gpr_strvec_destroy(&b); |
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return out; |
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} |
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void grpc_call_log_op(char *file, int line, gpr_log_severity severity, |
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grpc_call_element *elem, grpc_call_op *op) { |
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char *str = grpc_call_op_string(op); |
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gpr_log(file, line, severity, "OP[%s:%p]: %s", elem->filter->name, elem, str); |
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gpr_free(str); |
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} |
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