mirror of https://github.com/grpc/grpc.git
Craig Tiller
8 years ago
commit
1edc77c7c6
106 changed files with 2170 additions and 554 deletions
@ -0,0 +1,15 @@ |
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There are times when we make changes that include a temporary shim for |
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backward-compatibility (e.g., a macro or some other function to preserve |
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the original API) to avoid having to bump the major version number in |
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the next release. However, when we do eventually want to release a |
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feature that does change the API in a non-backward-compatible way, we |
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will wind up bumping the major version number anyway, at which point we |
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can take the opportunity to clean up any pending backward-compatibility |
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shims. |
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|
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This file lists all pending backward-compatibility changes that should |
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be cleaned up the next time we are going to bump the major version |
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number: |
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|
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- remove `GRPC_ARG_MAX_MESSAGE_LENGTH` channel arg from |
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`include/grpc/impl/codegen/grpc_types.h` (commit `af00d8b`) |
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@ -0,0 +1,192 @@ |
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# gRPC Server Reflection Tutorial |
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|
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gRPC Server Reflection provides information about publicly-accessible gRPC |
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services on a server, and assists clients at runtime to construct RPC |
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requests and responses without precompiled service information. It is used by |
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gRPC CLI, which can be used to introspect server protos and send/receive test |
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RPCs. |
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|
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## Enable Server Reflection |
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|
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### Enable server reflection in C++ servers |
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|
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C++ Server Reflection is an add-on library, `libgrpc++_reflction`. To enable C++ |
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server reflection, you can link this library to your server binary. |
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|
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Some platforms (e.g. Ubuntu 11.10 onwards) only link in libraries that directly |
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contain symbols used by the application. On these platforms, LD flag |
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`--no-as-needed` is needed for for dynamic linking and `--whole-archive` is |
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needed for for static linking. |
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|
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This [Makefile](../examples/cpp/helloworld/Makefile#L37#L45) demonstrates |
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enabling c++ server reflection on Linux and MacOS. |
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|
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## Test services using Server Reflection |
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|
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After enabling Server Reflection in a server application, you can use gRPC CLI |
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to test its services. |
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|
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Instructions on how to use gRPC CLI can be found at |
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[command_line_tool.md](command_line_tool.md), or using `grpc_cli help` command. |
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|
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Here we use `examples/cpp/helloworld` as an example to show the use of gRPC |
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Server Reflection and gRPC CLI. First, we need to build gRPC CLI and setup an |
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example server with Server Reflection enabled. |
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|
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- Setup an example server |
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|
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Server Reflection has already been enabled in the |
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[Makefile](../examples/cpp/helloworld/Makefile) of the helloworld example. We |
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can simply make it and run the greeter_server. |
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|
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```sh |
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$ make -C examples/cpp/helloworld |
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$ examples/cpp/helloworld/greeter_server & |
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``` |
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|
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- Build gRPC CLI |
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|
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```sh |
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make grpc_cli |
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cd bins/opt |
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``` |
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|
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gRPC CLI binary `grpc_cli` can be found at `bins/opt/` folder. This tool is |
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still new and does not have a `make install` target yet. |
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|
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### List services |
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|
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`grpc_cli ls` command lists services and methods exposed at a given port |
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|
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- List all the services exposed at a given port |
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|
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```sh |
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$ grpc_cli ls localhost:50051 |
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``` |
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|
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output: |
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```sh |
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helloworld.Greeter |
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grpc.reflection.v1alpha.ServerReflection |
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``` |
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|
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- List one service with details |
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|
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`grpc_cli ls` command inspects a service given its full name (in the format of |
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\<package\>.\<service\>). It can print information with a long listing format |
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when `-l` flag is set. This flag can be used to get more details about a |
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service. |
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|
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```sh |
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$ grpc_cli ls localhost:50051 helloworld.Greeter -l |
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``` |
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|
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output: |
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```sh |
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filename: helloworld.proto |
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package: helloworld; |
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service Greeter { |
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rpc SayHello(helloworld.HelloRequest) returns (helloworld.HelloReply) {} |
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} |
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|
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``` |
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|
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### List methods |
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|
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- List one method with details |
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|
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`grpc_cli ls` command also inspects a method given its full name (in the |
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format of \<package\>.\<service\>.\<method\>). |
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|
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```sh |
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$ grpc_cli ls localhost:50051 helloworld.Greeter.SayHello -l |
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``` |
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|
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output: |
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```sh |
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rpc SayHello(helloworld.HelloRequest) returns (helloworld.HelloReply) {} |
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``` |
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|
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### Inspect message types |
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|
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We can use`grpc_cli type` command to inspect request/response types given the |
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full name of the type (in the format of \<package\>.\<type\>). |
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|
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- Get information about the request type |
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|
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```sh |
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$ grpc_cli type localhost:50051 helloworld.HelloRequest |
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``` |
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|
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output: |
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```sh |
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message HelloRequest { |
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optional string name = 1; |
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} |
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``` |
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|
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### Call a remote method |
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|
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We can send RPCs to a server and get responses using `grpc_cli call` command. |
||||
|
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- Call a unary method |
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|
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```sh |
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$ grpc_cli call localhost:50051 SayHello "name: 'gRPC CLI'" |
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``` |
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|
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output: |
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```sh |
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message: "Hello gRPC CLI" |
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``` |
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|
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## Use Server Reflection in a C++ client |
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|
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Server Reflection can be used by clients to get information about gRPC services |
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at runtime. We've provided a descriptor database called |
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[grpc::ProtoReflectionDescriptorDatabase](../test/cpp/util/proto_reflection_descriptor_database.h) |
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which implements the |
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[google::protobuf::DescriptorDatabase](https://developers.google.com/protocol-buffers/docs/reference/cpp/google.protobuf.descriptor_database#DescriptorDatabase) |
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interface. It manages the communication between clients and reflection services |
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and the storage of received information. Clients can use it as using a local |
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descriptor database. |
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|
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- To use Server Reflection with grpc::ProtoReflectionDescriptorDatabase, first |
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initialize an instance with a grpc::Channel. |
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|
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```c++ |
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std::shared_ptr<grpc::Channel> channel = |
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grpc::CreateChannel(server_address, server_cred); |
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grpc::ProtoReflectionDescriptorDatabase reflection_db(channel); |
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``` |
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|
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- Then use this instance to feed a |
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[google::protobuf::DescriptorPool](https://developers.google.com/protocol-buffers/docs/reference/cpp/google.protobuf.descriptor#DescriptorPool). |
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|
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```c++ |
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google::protobuf::DescriptorPool desc_pool(&reflection_db); |
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``` |
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|
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- Example usage of this descriptor pool |
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|
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* Get Service/method descriptors. |
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|
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```c++ |
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const google::protobuf::ServiceDescriptor* service_desc = |
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desc_pool->FindServiceByName("helloworld.Greeter"); |
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const google::protobuf::MethodDescriptor* method_desc = |
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desc_pool->FindMethodByName("helloworld.Greeter.SayHello"); |
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``` |
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|
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* Get message type descriptors. |
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|
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```c++ |
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const google::protobuf::Descriptor* request_desc = |
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desc_pool->FindMessageTypeByName("helloworld.HelloRequest"); |
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``` |
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|
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* Feed [google::protobuf::DynamicMessageFactory](https://developers.google.com/protocol-buffers/docs/reference/cpp/google.protobuf.dynamic_message#DynamicMessageFactory). |
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|
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```c++ |
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google::protobuf::DynamicMessageFactory(&desc_pool); |
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``` |
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@ -0,0 +1,86 @@ |
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/*
|
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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 |
||||
* 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 |
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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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#include "src/core/ext/census/trace_context.h" |
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|
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#include <grpc/census.h> |
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#include <grpc/support/log.h> |
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#include <stdbool.h> |
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|
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#include "third_party/nanopb/pb_decode.h" |
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#include "third_party/nanopb/pb_encode.h" |
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|
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// This function assumes the TraceContext is valid.
|
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size_t encode_trace_context(google_trace_TraceContext *ctxt, uint8_t *buffer, |
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const size_t buf_size) { |
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// Create a stream that will write to our buffer.
|
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pb_ostream_t stream = pb_ostream_from_buffer(buffer, buf_size); |
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|
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// encode message
|
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bool status = pb_encode(&stream, google_trace_TraceContext_fields, ctxt); |
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|
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if (!status) { |
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gpr_log(GPR_DEBUG, "TraceContext encoding failed: %s", |
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PB_GET_ERROR(&stream)); |
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return 0; |
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} |
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|
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return stream.bytes_written; |
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} |
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|
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bool decode_trace_context(google_trace_TraceContext *ctxt, uint8_t *buffer, |
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const size_t nbytes) { |
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// Create a stream that reads nbytes from the buffer.
|
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pb_istream_t stream = pb_istream_from_buffer(buffer, nbytes); |
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|
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// decode message
|
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bool status = pb_decode(&stream, google_trace_TraceContext_fields, ctxt); |
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|
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if (!status) { |
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gpr_log(GPR_DEBUG, "TraceContext decoding failed: %s", |
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PB_GET_ERROR(&stream)); |
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return false; |
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} |
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|
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// check fields
|
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if (!ctxt->has_trace_id) { |
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gpr_log(GPR_DEBUG, "Invalid TraceContext: missing trace_id"); |
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return false; |
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} |
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if (!ctxt->has_span_id) { |
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gpr_log(GPR_DEBUG, "Invalid TraceContext: missing span_id"); |
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return false; |
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} |
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|
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return true; |
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} |
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@ -0,0 +1,68 @@ |
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/*
|
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* |
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* Copyright 2016, Google Inc. |
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* All rights reserved. |
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* |
||||
* 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. |
||||
* |
||||
*/ |
||||
|
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/* Functions for manipulating trace contexts as defined in
|
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src/proto/census/trace.proto */ |
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#ifndef GRPC_CORE_EXT_CENSUS_TRACE_CONTEXT_H |
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#define GRPC_CORE_EXT_CENSUS_TRACE_CONTEXT_H |
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|
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#include "src/core/ext/census/gen/trace_context.pb.h" |
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|
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/* Maximum number of bytes required to encode a TraceContext (31)
|
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1 byte for trace_id field |
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1 byte for trace_id length |
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1 byte for trace_id.hi field |
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8 bytes for trace_id.hi (uint64_t) |
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1 byte for trace_id.lo field |
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8 bytes for trace_id.lo (uint64_t) |
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1 byte for span_id field |
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8 bytes for span_id (uint64_t) |
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1 byte for is_sampled field |
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1 byte for is_sampled (bool) */ |
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#define TRACE_MAX_CONTEXT_SIZE 31 |
||||
|
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/* Encode a trace context (ctxt) into proto format to the buffer provided. The
|
||||
size of buffer must be at least TRACE_MAX_CONTEXT_SIZE. On success, returns the |
||||
number of bytes successfully encoded into buffer. On failure, returns 0. */ |
||||
size_t encode_trace_context(google_trace_TraceContext *ctxt, uint8_t *buffer, |
||||
const size_t buf_size); |
||||
|
||||
/* Decode a proto-encoded TraceContext from the provided buffer into the
|
||||
TraceContext structure (ctxt). The function expects to be supplied the number |
||||
of bytes to be read from buffer (nbytes). This function will also validate that |
||||
the TraceContext has a span_id and a trace_id, and will return false if either |
||||
of these do not exist. On success, returns true and false otherwise. */ |
||||
bool decode_trace_context(google_trace_TraceContext *ctxt, uint8_t *buffer, |
||||
const size_t nbytes); |
||||
|
||||
#endif |
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@ -1,52 +1,53 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2015, 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. |
||||
* |
||||
*/ |
||||
//
|
||||
// Copyright 2015, 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.
|
||||
//
|
||||
|
||||
#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_RESOLVER_RESULT_H |
||||
#define GRPC_CORE_EXT_CLIENT_CONFIG_RESOLVER_RESULT_H |
||||
|
||||
#include <stdbool.h> |
||||
|
||||
#include "src/core/ext/client_config/lb_policy.h" |
||||
#include "src/core/lib/iomgr/resolve_address.h" |
||||
|
||||
/** Results reported from a grpc_resolver. */ |
||||
/// Results reported from a grpc_resolver.
|
||||
typedef struct grpc_resolver_result grpc_resolver_result; |
||||
|
||||
grpc_resolver_result *grpc_resolver_result_create(); |
||||
void grpc_resolver_result_ref(grpc_resolver_result *client_config); |
||||
void grpc_resolver_result_unref(grpc_exec_ctx *exec_ctx, |
||||
grpc_resolver_result *client_config); |
||||
grpc_resolver_result* grpc_resolver_result_create(); |
||||
void grpc_resolver_result_ref(grpc_resolver_result* result); |
||||
void grpc_resolver_result_unref(grpc_exec_ctx* exec_ctx, |
||||
grpc_resolver_result* result); |
||||
|
||||
void grpc_resolver_result_set_lb_policy(grpc_resolver_result *client_config, |
||||
grpc_lb_policy *lb_policy); |
||||
grpc_lb_policy *grpc_resolver_result_get_lb_policy( |
||||
grpc_resolver_result *client_config); |
||||
void grpc_resolver_result_set_lb_policy(grpc_resolver_result* result, |
||||
grpc_lb_policy* lb_policy); |
||||
grpc_lb_policy* grpc_resolver_result_get_lb_policy( |
||||
grpc_resolver_result* result); |
||||
|
||||
#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_RESOLVER_RESULT_H */ |
||||
|
||||
@ -0,0 +1,165 @@ |
||||
//
|
||||
// Copyright 2016, 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/lib/channel/message_size_filter.h" |
||||
|
||||
#include <limits.h> |
||||
#include <string.h> |
||||
|
||||
#include <grpc/support/alloc.h> |
||||
#include <grpc/support/log.h> |
||||
#include <grpc/support/string_util.h> |
||||
|
||||
#include "src/core/lib/channel/channel_args.h" |
||||
|
||||
// The protobuf library will (by default) start warning at 100 megs.
|
||||
#define DEFAULT_MAX_MESSAGE_LENGTH (4 * 1024 * 1024) |
||||
|
||||
typedef struct call_data { |
||||
// Receive closures are chained: we inject this closure as the
|
||||
// recv_message_ready up-call on transport_stream_op, and remember to
|
||||
// call our next_recv_message_ready member after handling it.
|
||||
grpc_closure recv_message_ready; |
||||
// Used by recv_message_ready.
|
||||
grpc_byte_stream** recv_message; |
||||
// Original recv_message_ready callback, invoked after our own.
|
||||
grpc_closure* next_recv_message_ready; |
||||
} call_data; |
||||
|
||||
typedef struct channel_data { |
||||
size_t max_send_size; |
||||
size_t max_recv_size; |
||||
} channel_data; |
||||
|
||||
// Callback invoked when we receive a message. Here we check the max
|
||||
// receive message size.
|
||||
static void recv_message_ready(grpc_exec_ctx* exec_ctx, void* user_data, |
||||
grpc_error* error) { |
||||
grpc_call_element* elem = user_data; |
||||
call_data* calld = elem->call_data; |
||||
channel_data* chand = elem->channel_data; |
||||
if (*calld->recv_message != NULL && |
||||
(*calld->recv_message)->length > chand->max_recv_size) { |
||||
char* message_string; |
||||
gpr_asprintf( |
||||
&message_string, "Received message larger than max (%u vs. %lu)", |
||||
(*calld->recv_message)->length, (unsigned long)chand->max_recv_size); |
||||
gpr_slice message = gpr_slice_from_copied_string(message_string); |
||||
gpr_free(message_string); |
||||
grpc_call_element_send_cancel_with_message( |
||||
exec_ctx, elem, GRPC_STATUS_INVALID_ARGUMENT, &message); |
||||
} |
||||
// Invoke the next callback.
|
||||
grpc_exec_ctx_sched(exec_ctx, calld->next_recv_message_ready, error, NULL); |
||||
} |
||||
|
||||
// Start transport op.
|
||||
static void start_transport_stream_op(grpc_exec_ctx* exec_ctx, |
||||
grpc_call_element* elem, |
||||
grpc_transport_stream_op* op) { |
||||
call_data* calld = elem->call_data; |
||||
channel_data* chand = elem->channel_data; |
||||
// Check max send message size.
|
||||
if (op->send_message != NULL && |
||||
op->send_message->length > chand->max_send_size) { |
||||
char* message_string; |
||||
gpr_asprintf(&message_string, "Sent message larger than max (%u vs. %lu)", |
||||
op->send_message->length, (unsigned long)chand->max_send_size); |
||||
gpr_slice message = gpr_slice_from_copied_string(message_string); |
||||
gpr_free(message_string); |
||||
grpc_call_element_send_cancel_with_message( |
||||
exec_ctx, elem, GRPC_STATUS_INVALID_ARGUMENT, &message); |
||||
} |
||||
// Inject callback for receiving a message.
|
||||
if (op->recv_message_ready != NULL) { |
||||
calld->next_recv_message_ready = op->recv_message_ready; |
||||
calld->recv_message = op->recv_message; |
||||
op->recv_message_ready = &calld->recv_message_ready; |
||||
} |
||||
// Chain to the next filter.
|
||||
grpc_call_next_op(exec_ctx, elem, op); |
||||
} |
||||
|
||||
// Constructor for call_data.
|
||||
static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx, |
||||
grpc_call_element* elem, |
||||
grpc_call_element_args* args) { |
||||
call_data* calld = elem->call_data; |
||||
calld->next_recv_message_ready = NULL; |
||||
grpc_closure_init(&calld->recv_message_ready, recv_message_ready, elem); |
||||
return GRPC_ERROR_NONE; |
||||
} |
||||
|
||||
// Destructor for call_data.
|
||||
static void destroy_call_elem(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, |
||||
const grpc_call_final_info* final_info, |
||||
void* ignored) {} |
||||
|
||||
// Constructor for channel_data.
|
||||
static void init_channel_elem(grpc_exec_ctx* exec_ctx, |
||||
grpc_channel_element* elem, |
||||
grpc_channel_element_args* args) { |
||||
GPR_ASSERT(!args->is_last); |
||||
channel_data* chand = elem->channel_data; |
||||
memset(chand, 0, sizeof(*chand)); |
||||
chand->max_send_size = DEFAULT_MAX_MESSAGE_LENGTH; |
||||
chand->max_recv_size = DEFAULT_MAX_MESSAGE_LENGTH; |
||||
const grpc_integer_options options = {DEFAULT_MAX_MESSAGE_LENGTH, 0, INT_MAX}; |
||||
for (size_t i = 0; i < args->channel_args->num_args; ++i) { |
||||
if (strcmp(args->channel_args->args[i].key, |
||||
GRPC_ARG_MAX_SEND_MESSAGE_LENGTH) == 0) { |
||||
chand->max_send_size = (size_t)grpc_channel_arg_get_integer( |
||||
&args->channel_args->args[i], options); |
||||
} |
||||
if (strcmp(args->channel_args->args[i].key, |
||||
GRPC_ARG_MAX_RECEIVE_MESSAGE_LENGTH) == 0) { |
||||
chand->max_recv_size = (size_t)grpc_channel_arg_get_integer( |
||||
&args->channel_args->args[i], options); |
||||
} |
||||
} |
||||
} |
||||
|
||||
// Destructor for channel_data.
|
||||
static void destroy_channel_elem(grpc_exec_ctx* exec_ctx, |
||||
grpc_channel_element* elem) {} |
||||
|
||||
const grpc_channel_filter grpc_message_size_filter = { |
||||
start_transport_stream_op, |
||||
grpc_channel_next_op, |
||||
sizeof(call_data), |
||||
init_call_elem, |
||||
grpc_call_stack_ignore_set_pollset_or_pollset_set, |
||||
destroy_call_elem, |
||||
sizeof(channel_data), |
||||
init_channel_elem, |
||||
destroy_channel_elem, |
||||
grpc_call_next_get_peer, |
||||
"message_size"}; |
||||
@ -0,0 +1,39 @@ |
||||
//
|
||||
// Copyright 2016, 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.
|
||||
//
|
||||
|
||||
#ifndef GRPC_CORE_LIB_CHANNEL_MESSAGE_SIZE_FILTER_H |
||||
#define GRPC_CORE_LIB_CHANNEL_MESSAGE_SIZE_FILTER_H |
||||
|
||||
#include "src/core/lib/channel/channel_stack.h" |
||||
|
||||
extern const grpc_channel_filter grpc_message_size_filter; |
||||
|
||||
#endif /* GRPC_CORE_LIB_CHANNEL_MESSAGE_SIZE_FILTER_H */ |
||||
@ -0,0 +1,53 @@ |
||||
# Copyright 2016, 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. |
||||
|
||||
"""Tests of Channel Args on client/server side.""" |
||||
|
||||
import unittest |
||||
|
||||
import grpc |
||||
|
||||
TEST_CHANNEL_ARGS = ( |
||||
('arg1', b'bytes_val'), |
||||
('arg2', 'str_val'), |
||||
('arg3', 1), |
||||
(b'arg4', 'str_val'), |
||||
) |
||||
|
||||
|
||||
class ChannelArgsTest(unittest.TestCase): |
||||
|
||||
def test_client(self): |
||||
grpc.insecure_channel('localhost:8080', options=TEST_CHANNEL_ARGS) |
||||
|
||||
def test_server(self): |
||||
grpc.server(None, options=TEST_CHANNEL_ARGS) |
||||
|
||||
if __name__ == '__main__': |
||||
unittest.main(verbosity=2) |
||||
Binary file not shown.
@ -0,0 +1,3 @@ |
||||
trace_id { hi : 5; lo : 1 } |
||||
span_id : 7 |
||||
is_sampled : true |
||||
Binary file not shown.
@ -0,0 +1,2 @@ |
||||
trace_id { hi : 5; lo : 1 } |
||||
span_id : 7 |
||||
Binary file not shown.
@ -0,0 +1,2 @@ |
||||
span_id : 7 |
||||
is_sampled : true |
||||
Binary file not shown.
@ -0,0 +1,2 @@ |
||||
trace_id { hi : 5; lo : 1 } |
||||
is_sampled : true |
||||
@ -0,0 +1,231 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2016, 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 <grpc/census.h> |
||||
#include <grpc/support/log.h> |
||||
#include <grpc/support/port_platform.h> |
||||
#include <grpc/support/useful.h> |
||||
#include <stdbool.h> |
||||
#include <stdio.h> |
||||
#include <stdlib.h> |
||||
#include "src/core/ext/census/base_resources.h" |
||||
#include "src/core/ext/census/resource.h" |
||||
#include "test/core/util/test_config.h" |
||||
|
||||
#include "src/core/ext/census/gen/trace_context.pb.h" |
||||
#include "src/core/ext/census/trace_context.h" |
||||
#include "third_party/nanopb/pb_decode.h" |
||||
#include "third_party/nanopb/pb_encode.h" |
||||
|
||||
#define BUF_SIZE 256 |
||||
|
||||
/* Encodes a TraceContext structure (ctxt1) to a buffer, and then decodes it
|
||||
to a second TraceContext (ctxt2). Validates that the resulting TraceContext |
||||
has a span_id, trace_id, and that the values are equal to those in initial |
||||
TraceContext. On success, returns true. If encode_trace_context returns 0, |
||||
decode_trace_context fails, or the resulting TraceContext is missing a trace_id |
||||
or span_id, it will return false. */ |
||||
bool validate_encode_decode_context(google_trace_TraceContext *ctxt1, |
||||
uint8_t *buffer, size_t buf_size) { |
||||
google_trace_TraceContext ctxt2 = google_trace_TraceContext_init_zero; |
||||
size_t msg_length; |
||||
GPR_ASSERT(ctxt1->has_trace_id && ctxt1->has_span_id); |
||||
|
||||
msg_length = encode_trace_context(ctxt1, buffer, buf_size); |
||||
if (msg_length == 0) { |
||||
return false; |
||||
} |
||||
|
||||
if (!decode_trace_context(&ctxt2, buffer, msg_length)) { |
||||
return false; |
||||
} |
||||
|
||||
if (!ctxt2.has_trace_id || !ctxt2.has_span_id) { |
||||
return false; |
||||
} |
||||
|
||||
GPR_ASSERT( |
||||
ctxt1->trace_id.hi == ctxt2.trace_id.hi && |
||||
ctxt1->trace_id.lo == ctxt2.trace_id.lo && |
||||
ctxt1->span_id == ctxt2.span_id && |
||||
ctxt1->has_is_sampled == ctxt2.has_is_sampled && |
||||
(ctxt1->has_is_sampled ? ctxt1->is_sampled == ctxt2.is_sampled : true)); |
||||
|
||||
return true; |
||||
} |
||||
|
||||
/* Decodes a proto-encoded TraceContext from a buffer. If decode_trace_context
|
||||
fails or the resulting TraceContext is missing a trace_id or span_id it will |
||||
return false, otherwise returns true. */ |
||||
bool validate_decode_context(google_trace_TraceContext *ctxt, uint8_t *buffer, |
||||
size_t msg_length) { |
||||
// Validate the decoding of a context written to buffer.
|
||||
if (!decode_trace_context(ctxt, buffer, msg_length)) { |
||||
return false; |
||||
} |
||||
|
||||
if (!ctxt->has_trace_id || !ctxt->has_span_id) { |
||||
return false; |
||||
} |
||||
|
||||
return true; |
||||
} |
||||
|
||||
/* Read an encoded trace context from a file. Validates that the decoding
|
||||
gives the expected result (succeed). */ |
||||
static void read_and_validate_context_from_file(google_trace_TraceContext *ctxt, |
||||
const char *file, |
||||
const bool succeed) { |
||||
uint8_t buffer[BUF_SIZE]; |
||||
FILE *input = fopen(file, "rb"); |
||||
GPR_ASSERT(input != NULL); |
||||
size_t nbytes = fread(buffer, 1, BUF_SIZE, input); |
||||
GPR_ASSERT(nbytes <= BUF_SIZE && feof(input) && !ferror(input)); |
||||
bool res = validate_decode_context(ctxt, buffer, nbytes); |
||||
GPR_ASSERT(res == succeed); |
||||
GPR_ASSERT(fclose(input) == 0); |
||||
} |
||||
|
||||
// Test full proto-buffer.
|
||||
static void test_full() { |
||||
google_trace_TraceContext ctxt = google_trace_TraceContext_init_zero; |
||||
read_and_validate_context_from_file( |
||||
&ctxt, "test/core/census/data/context_full.pb", true); |
||||
} |
||||
|
||||
// Test empty proto-buffer.
|
||||
static void test_empty() { |
||||
google_trace_TraceContext ctxt = google_trace_TraceContext_init_zero; |
||||
read_and_validate_context_from_file( |
||||
&ctxt, "test/core/census/data/context_empty.pb", false); |
||||
} |
||||
|
||||
// Test proto-buffer with only trace_id.
|
||||
static void test_trace_only() { |
||||
google_trace_TraceContext ctxt = google_trace_TraceContext_init_zero; |
||||
read_and_validate_context_from_file( |
||||
&ctxt, "test/core/census/data/context_trace_only.pb", false); |
||||
} |
||||
|
||||
// Test proto-buffer with only span_id.
|
||||
static void test_span_only() { |
||||
google_trace_TraceContext ctxt = google_trace_TraceContext_init_zero; |
||||
read_and_validate_context_from_file( |
||||
&ctxt, "test/core/census/data/context_span_only.pb", false); |
||||
} |
||||
|
||||
// Test proto-buffer without is_sampled value.
|
||||
static void test_no_sample() { |
||||
google_trace_TraceContext ctxt = google_trace_TraceContext_init_zero; |
||||
read_and_validate_context_from_file( |
||||
&ctxt, "test/core/census/data/context_no_sample.pb", true); |
||||
GPR_ASSERT(ctxt.has_is_sampled == false && ctxt.is_sampled == false); |
||||
} |
||||
|
||||
static void test_encode_decode() { |
||||
uint8_t buffer[BUF_SIZE] = {0}; |
||||
|
||||
google_trace_TraceContext ctxt1 = google_trace_TraceContext_init_zero; |
||||
ctxt1.has_trace_id = true; |
||||
ctxt1.trace_id.has_hi = true; |
||||
ctxt1.trace_id.has_lo = true; |
||||
ctxt1.trace_id.lo = 1; |
||||
ctxt1.trace_id.hi = 2; |
||||
ctxt1.has_span_id = true; |
||||
ctxt1.span_id = 3; |
||||
validate_encode_decode_context(&ctxt1, buffer, sizeof(buffer)); |
||||
|
||||
google_trace_TraceContext ctxt2 = google_trace_TraceContext_init_zero; |
||||
ctxt2.has_trace_id = true; |
||||
ctxt2.trace_id.has_hi = false; |
||||
ctxt2.trace_id.has_lo = false; |
||||
ctxt2.has_span_id = true; |
||||
validate_encode_decode_context(&ctxt2, buffer, sizeof(buffer)); |
||||
} |
||||
|
||||
// Test a corrupted proto-buffer.
|
||||
static void test_corrupt() { |
||||
uint8_t buffer[BUF_SIZE] = {0}; |
||||
google_trace_TraceContext ctxt1 = google_trace_TraceContext_init_zero; |
||||
size_t msg_length; |
||||
|
||||
ctxt1.has_trace_id = true; |
||||
ctxt1.trace_id.has_hi = true; |
||||
ctxt1.trace_id.has_lo = true; |
||||
ctxt1.trace_id.lo = 1; |
||||
ctxt1.trace_id.hi = 2; |
||||
ctxt1.has_span_id = true; |
||||
ctxt1.span_id = 3; |
||||
ctxt1.is_sampled = true; |
||||
msg_length = encode_trace_context(&ctxt1, buffer, sizeof(buffer)); |
||||
|
||||
/* Corrupt some bytes. 255 (0xFF) should be illegal for the first byte of the
|
||||
proto encoded object. */ |
||||
buffer[0] = 255; |
||||
|
||||
bool res = validate_decode_context(&ctxt1, buffer, msg_length); |
||||
GPR_ASSERT(res == false); |
||||
} |
||||
|
||||
static void test_buffer_size() { |
||||
// This buffer is too small, so the encode should fail.
|
||||
uint8_t buffer[16] = {0}; |
||||
google_trace_TraceContext ctxt1 = google_trace_TraceContext_init_zero; |
||||
size_t msg_length; |
||||
|
||||
ctxt1.has_trace_id = true; |
||||
ctxt1.trace_id.has_hi = true; |
||||
ctxt1.trace_id.has_lo = true; |
||||
ctxt1.trace_id.lo = 1; |
||||
ctxt1.trace_id.hi = 2; |
||||
ctxt1.has_span_id = true; |
||||
ctxt1.span_id = 3; |
||||
ctxt1.is_sampled = true; |
||||
msg_length = encode_trace_context(&ctxt1, buffer, sizeof(buffer)); |
||||
|
||||
GPR_ASSERT(msg_length == 0); |
||||
} |
||||
|
||||
int main(int argc, char **argv) { |
||||
grpc_test_init(argc, argv); |
||||
test_full(); |
||||
test_empty(); |
||||
test_trace_only(); |
||||
test_span_only(); |
||||
test_encode_decode(); |
||||
test_corrupt(); |
||||
test_no_sample(); |
||||
test_buffer_size(); |
||||
|
||||
return 0; |
||||
} |
||||
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