mirror of https://github.com/grpc/grpc.git
Mark D. Roth
8 years ago
committed by
GitHub
commit
6f690f3483
22 changed files with 400 additions and 6 deletions
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/*
|
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* |
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* Copyright 2017, 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/ext/client_channel/proxy_mapper.h" |
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void grpc_proxy_mapper_init(const grpc_proxy_mapper_vtable* vtable, |
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grpc_proxy_mapper* mapper) { |
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mapper->vtable = vtable; |
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} |
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bool grpc_proxy_mapper_map(grpc_exec_ctx* exec_ctx, grpc_proxy_mapper* mapper, |
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const grpc_resolved_address* address, |
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const grpc_channel_args* args, |
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grpc_resolved_address** new_address, |
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grpc_channel_args** new_args) { |
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return mapper->vtable->map(exec_ctx, mapper, address, args, new_address, |
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new_args); |
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} |
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void grpc_proxy_mapper_destroy(grpc_proxy_mapper* mapper) { |
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mapper->vtable->destroy(mapper); |
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} |
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/*
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* |
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* Copyright 2017, 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_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_H |
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#define GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_H |
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#include <stdbool.h> |
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#include <grpc/impl/codegen/grpc_types.h> |
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#include "src/core/lib/iomgr/resolve_address.h" |
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typedef struct grpc_proxy_mapper grpc_proxy_mapper; |
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typedef struct { |
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/// Determines the proxy address to use to contact \a address.
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/// If no proxy is needed, returns false.
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/// Otherwise, sets \a new_address, optionally sets \a new_args, and
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/// returns true.
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bool (*map)(grpc_exec_ctx* exec_ctx, grpc_proxy_mapper* mapper, |
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const grpc_resolved_address* address, |
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const grpc_channel_args* args, |
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grpc_resolved_address** new_address, |
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grpc_channel_args** new_args); |
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/// Destroys \a mapper.
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void (*destroy)(grpc_proxy_mapper* mapper); |
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} grpc_proxy_mapper_vtable; |
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struct grpc_proxy_mapper { |
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const grpc_proxy_mapper_vtable* vtable; |
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}; |
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void grpc_proxy_mapper_init(const grpc_proxy_mapper_vtable* vtable, |
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grpc_proxy_mapper* mapper); |
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bool grpc_proxy_mapper_map(grpc_exec_ctx* exec_ctx, grpc_proxy_mapper* mapper, |
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const grpc_resolved_address* address, |
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const grpc_channel_args* args, |
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grpc_resolved_address** new_address, |
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grpc_channel_args** new_args); |
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void grpc_proxy_mapper_destroy(grpc_proxy_mapper* mapper); |
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#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_H */ |
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@ -0,0 +1,111 @@ |
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/*
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* |
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* Copyright 2017, 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/ext/client_channel/proxy_mapper_registry.h" |
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#include <string.h> |
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#include <grpc/support/alloc.h> |
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//
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// grpc_proxy_mapper_list
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//
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typedef struct { |
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grpc_proxy_mapper** list; |
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size_t num_mappers; |
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} grpc_proxy_mapper_list; |
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static void grpc_proxy_mapper_list_register(grpc_proxy_mapper_list* list, |
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bool at_start, |
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grpc_proxy_mapper* mapper) { |
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list->list = gpr_realloc( |
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list->list, (list->num_mappers + 1) * sizeof(grpc_proxy_mapper*)); |
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if (at_start) { |
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memmove(list->list + 1, list->list, |
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sizeof(grpc_proxy_mapper*) * list->num_mappers); |
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list->list[0] = mapper; |
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} else { |
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list->list[list->num_mappers] = mapper; |
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} |
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++list->num_mappers; |
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} |
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static bool grpc_proxy_mapper_list_map(grpc_exec_ctx* exec_ctx, |
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grpc_proxy_mapper_list* list, |
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const grpc_resolved_address* address, |
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const grpc_channel_args* args, |
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grpc_resolved_address** new_address, |
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grpc_channel_args** new_args) { |
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for (size_t i = 0; i < list->num_mappers; ++i) { |
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if (grpc_proxy_mapper_map(exec_ctx, list->list[i], address, args, |
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new_address, new_args)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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static void grpc_proxy_mapper_list_destroy(grpc_proxy_mapper_list* list) { |
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for (size_t i = 0; i < list->num_mappers; ++i) { |
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grpc_proxy_mapper_destroy(list->list[i]); |
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} |
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gpr_free(list->list); |
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} |
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//
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// plugin
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//
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static grpc_proxy_mapper_list g_proxy_mapper_list; |
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void grpc_proxy_mapper_registry_init() { |
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memset(&g_proxy_mapper_list, 0, sizeof(g_proxy_mapper_list)); |
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} |
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void grpc_proxy_mapper_registry_shutdown() { |
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grpc_proxy_mapper_list_destroy(&g_proxy_mapper_list); |
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} |
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void grpc_proxy_mapper_register(bool at_start, grpc_proxy_mapper* mapper) { |
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grpc_proxy_mapper_list_register(&g_proxy_mapper_list, at_start, mapper); |
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} |
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bool grpc_proxy_mappers_map(grpc_exec_ctx* exec_ctx, |
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const grpc_resolved_address* address, |
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const grpc_channel_args* args, |
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grpc_resolved_address** new_address, |
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grpc_channel_args** new_args) { |
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return grpc_proxy_mapper_list_map(exec_ctx, &g_proxy_mapper_list, address, |
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args, new_address, new_args); |
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} |
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@ -0,0 +1,53 @@ |
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/*
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* |
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* Copyright 2017, 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_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H |
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#define GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H |
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#include "src/core/ext/client_channel/proxy_mapper.h" |
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void grpc_proxy_mapper_registry_init(); |
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void grpc_proxy_mapper_registry_shutdown(); |
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/// Registers a new proxy mapper. Takes ownership.
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/// If \a at_start is true, the new mapper will be at the beginning of
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/// the list. Otherwise, it will be added to the end.
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void grpc_proxy_mapper_register(bool at_start, grpc_proxy_mapper* mapper); |
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bool grpc_proxy_mappers_map(grpc_exec_ctx* exec_ctx, |
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const grpc_resolved_address* address, |
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const grpc_channel_args* args, |
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grpc_resolved_address** new_address, |
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grpc_channel_args** new_args); |
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#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H */ |
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