diff options
author | Vizerai <jsking@google.com> | 2017-01-26 13:26:30 -0800 |
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committer | Vizerai <jsking@google.com> | 2017-01-26 13:26:30 -0800 |
commit | e0cd44aa01cfa697002c7c8884f98d65cc2f7ebd (patch) | |
tree | c44e00ea6e4a6350d2af4f514ac268bb9a224544 /src/core/ext/client_channel/proxy_mapper_registry.c | |
parent | b0b86d7504dc7cf25d2616927196203c8ee41373 (diff) | |
parent | 1291fd4b2f9f502f412c3d6cd5dd5fdc18092842 (diff) |
Merge branch 'master' of https://github.com/Vizerai/grpc into tracing_API
Diffstat (limited to 'src/core/ext/client_channel/proxy_mapper_registry.c')
-rw-r--r-- | src/core/ext/client_channel/proxy_mapper_registry.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/core/ext/client_channel/proxy_mapper_registry.c b/src/core/ext/client_channel/proxy_mapper_registry.c new file mode 100644 index 0000000000..0a156c8b1c --- /dev/null +++ b/src/core/ext/client_channel/proxy_mapper_registry.c @@ -0,0 +1,111 @@ +/* + * + * Copyright 2017, 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 "src/core/ext/client_channel/proxy_mapper_registry.h" + +#include <string.h> + +#include <grpc/support/alloc.h> + +// +// grpc_proxy_mapper_list +// + +typedef struct { + grpc_proxy_mapper** list; + size_t num_mappers; +} grpc_proxy_mapper_list; + +static void grpc_proxy_mapper_list_register(grpc_proxy_mapper_list* list, + bool at_start, + grpc_proxy_mapper* mapper) { + list->list = gpr_realloc( + list->list, (list->num_mappers + 1) * sizeof(grpc_proxy_mapper*)); + if (at_start) { + memmove(list->list + 1, list->list, + sizeof(grpc_proxy_mapper*) * list->num_mappers); + list->list[0] = mapper; + } else { + list->list[list->num_mappers] = mapper; + } + ++list->num_mappers; +} + +static bool grpc_proxy_mapper_list_map(grpc_exec_ctx* exec_ctx, + grpc_proxy_mapper_list* list, + const grpc_resolved_address* address, + const grpc_channel_args* args, + grpc_resolved_address** new_address, + grpc_channel_args** new_args) { + for (size_t i = 0; i < list->num_mappers; ++i) { + if (grpc_proxy_mapper_map(exec_ctx, list->list[i], address, args, + new_address, new_args)) { + return true; + } + } + return false; +} + +static void grpc_proxy_mapper_list_destroy(grpc_proxy_mapper_list* list) { + for (size_t i = 0; i < list->num_mappers; ++i) { + grpc_proxy_mapper_destroy(list->list[i]); + } + gpr_free(list->list); +} + +// +// plugin +// + +static grpc_proxy_mapper_list g_proxy_mapper_list; + +void grpc_proxy_mapper_registry_init() { + memset(&g_proxy_mapper_list, 0, sizeof(g_proxy_mapper_list)); +} + +void grpc_proxy_mapper_registry_shutdown() { + grpc_proxy_mapper_list_destroy(&g_proxy_mapper_list); +} + +void grpc_proxy_mapper_register(bool at_start, grpc_proxy_mapper* mapper) { + grpc_proxy_mapper_list_register(&g_proxy_mapper_list, at_start, mapper); +} + +bool grpc_proxy_mappers_map(grpc_exec_ctx* exec_ctx, + const grpc_resolved_address* address, + const grpc_channel_args* args, + grpc_resolved_address** new_address, + grpc_channel_args** new_args) { + return grpc_proxy_mapper_list_map(exec_ctx, &g_proxy_mapper_list, address, + args, new_address, new_args); +} |