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# Overview |
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|
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gRPC-Web provides a JS client library that supports the same API |
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as gRPC-Node to access a gRPC service. Due to browser limitation, |
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the Web client library implements a different protocol than the |
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[native gRPC protocol](http://www.grpc.io/docs/guides/wire.html). |
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This protocol is designed to make it easy for a proxy to translate |
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between the protocols as this is the most likely deployment model. |
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|
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This document lists the differences between the two protocols. |
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To help tracking future revisions, this document describes a delta |
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with the protocol details specified in the |
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[native gRPC protocol](http://www.grpc.io/docs/guides/wire.html). |
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|
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# Design goals |
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For the gRPC-Web protocol, we have decided on the following design goals: |
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* adopt the same framing as “application/grpc” whenever possible |
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* decouple from HTTP/2 framing which is not, and will never, be directly |
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exposed by browsers |
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* support text streams (e.g. base64) in order to provide cross-browser |
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support (e.g. IE-10) |
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|
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While the new protocol will be published/reviewed publicly, we also |
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intend to keep the protocol as an internal detail to gRPC-Web. |
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More specifically, we expect the protocol to |
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|
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* evolve over time, mainly to optimize for browser clients or support |
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web-specific features such as CORS, XSRF |
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* become optional (in 1-2 years) when browsers are able to speak the native |
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gRPC protocol via the new [whatwg fetch/streams API](https://github.com/whatwg/fetch) |
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|
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# Protocol differences vs [gRPC over HTTP2](http://www.grpc.io/docs/guides/wire.html) |
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Content-Type |
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1. application/grpc-web |
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* e.g. application/grpc-web+[proto, json, thrift] |
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2. application/grpc-web-text |
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* text-encoded streams of “application/grpc-web” |
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|
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--- |
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HTTP wire protocols |
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1. support any HTTP/*, with no dependency on HTTP/2 specific framing |
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2. use lower-case header/trailer names |
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3. use EOF (end of body) to close the stream |
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|
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--- |
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|
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HTTP/2 related behavior (specified in [gRPC over HTTP2](http://www.grpc.io/docs/guides/wire.html)) |
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1. stream-id is not supported or used |
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2. go-away is not supported or used |
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|
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--- |
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|
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Message framing (vs. [http2-transport-mapping](http://www.grpc.io/docs/guides/wire.html#http2-transport-mapping)) |
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|
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1. Response status encoded as part of the response body |
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* Key-value pairs formatted as HTTP/1.1 headers block (without the empty |
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newline \r\n to terminate the block) |
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2. 8th (MSB) bit of the 1st gRPC frame byte |
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* 0: data |
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* 1: trailers |
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3. Trailers must be the last message of the response, as enforced |
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by the implementation |
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4. Trailers-only responses: no change to the gRPC protocol spec. |
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Trailers will be sent together with response headers, with no message |
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in the body. |
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|
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--- |
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|
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User Agent |
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* grpc-web-javascript/0.1 |
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|
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--- |
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Text-encoded (response) streams |
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1. The client library should indicate to the server via the "Accept" header that |
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the response stream needs to be text encoded e.g. when XHR is used or due |
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to security policies with XHR |
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* Accept: application/grpc-web-text |
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2. The default text encoding is base64 |
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* Text encoding may be specified with Content-Type or Accept headers as |
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* application/grpc-web-text-base64 |
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* Note that “Content-Transfer-Encoding: base64” should not be used. |
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Due to in-stream base64 padding when delimiting messages, the entire |
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response body is not necessarily a valid base64-encoded entity |
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* While the server runtime will always base64-encode and flush gRPC messages |
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atomically the client library should not assume base64 padding always |
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happens at the boundary of message frames. |
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3. For binary trailers, when the content-type is set to |
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application/grpc-web-text, the extra base64 encoding specified |
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in [gRPC over HTTP2](http://www.grpc.io/docs/guides/wire.html) |
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for binary custom metadata is skipped. |
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|
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# Other features |
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Compression |
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* Full-body compression is supported and expected for all unary |
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requests/responses. The compression/decompression will be done |
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by browsers, using standard Content-Encoding headers |
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* “grpc-encoding” header is not used |
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* SDCH, Brotli will be supported |
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* Message-level compression for streamed requests/responses is not supported |
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because manual compression/decompression is prohibitively expensive using JS |
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* Per-message compression may be feasible in future with wasm |
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|
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--- |
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Retries, caching |
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* Will spec out the support after their respective gRPC spec extensions |
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are finalized |
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* Safe retries: PUT |
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* Caching: header encoded request and/or a web specific spec |
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|
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--- |
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Security |
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* XSRF, XSS etc to be specified |
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|
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--- |
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CORS preflight |
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* The client library may support header overwrites to avoid preflight |
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* https://github.com/whatwg/fetch/issues/210 |
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* CSP support to be specified |
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|
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--- |
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Keep-alive |
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* HTTP/2 PING is not supported or used |
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* Will not support send-beacon (GET) |
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|
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--- |
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Bidi-streaming, with flow-control |
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* Pending on [whatwg fetch/streams](https://github.com/whatwg/fetch) to be |
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finalized and implemented in modern browsers |
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* gRPC-Web client will support the native gRPC protocol with modern browsers |
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@ -0,0 +1,121 @@ |
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# `epoll`-based pollset implementation in gRPC |
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Sree Kuchibhotla (sreek@) [May - 2016] |
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(Design input from Craig Tiller and David Klempner) |
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> Status: As of June 2016, this change is implemented and merged. |
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> * The bulk of the functionality is in: [ev_poll_linux.c](https://github.com/grpc/grpc/blob/master/src/core/lib/iomgr/ev_epoll_linux.c) |
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> * Pull request: https://github.com/grpc/grpc/pull/6803 |
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## 1. Introduction |
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The document talks about the proposed changes to `epoll`-based implementation of pollsets in gRPC. Section-2 gives an overview of the current implementation, Section-3 talks about the problems in the current implementation and finally Section-4 talks about the proposed changes. |
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## 2. Current `epoll`-based implementation in gRPC |
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 |
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**Figure 1: Current implementation** |
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A gRPC client or a server can have more than one completion queue. Each completion queue creates a pollset. |
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The gRPC core library does not create any threads[^1] on its own and relies on the application using the gRPC core library to provide the threads. A thread starts to poll for events by calling the gRPC core surface APIs `grpc_completion_queue_next()` or `grpc_completion_queue_pluck()`. More than one thread can call `grpc_completion_queue_next()`on the same completion queue[^2]. |
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A file descriptor can be in more than one completion queue. There are examples in the next section that show how this can happen. |
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When an event of interest happens in a pollset, multiple threads are woken up and there are no guarantees on which thread actually ends up performing the work i.e executing the callbacks associated with that event. The thread that performs the work finally queues a completion event `grpc_cq_completion` on the appropriate completion queue and "kicks" (i.e wakes ups) the thread that is actually interested in that event (which can be itself - in which case there is no thread hop) |
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For example, in **Figure 1**, if `fd1` becomes readable, any one of the threads i.e *Threads 1* to *Threads K* or *Thread P*, might be woken up. Let's say *Thread P* was calling a `grpc_completion_queue_pluck()` and was actually interested in the event on `fd1` but *Thread 1* woke up. In this case, *Thread 1* executes the callbacks and finally kicks *Thread P* by signalling `event_fd_P`. *Thread P* wakes up, realizes that there is a new completion event for it and returns from `grpc_completion_queue_pluck()` to its caller. |
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## 3. Issues in the current architecture |
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### _Thundering Herds_ |
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If multiple threads concurrently call `epoll_wait()`, we are guaranteed that only one thread is woken up if one of the `fds` in the set becomes readable/writable. However, in our current implementation, the threads do not directly call a blocking `epoll_wait()`[^3]. Instead, they call `poll()` on the set containing `[event_fd`[^4]`, epoll_fd]`. **(see Figure 1)** |
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Considering the fact that an `fd` can be in multiple `pollsets` and that each `pollset` might have multiple poller threads, it means that whenever an `fd` becomes readable/writable, all the threads in all the `pollsets` (in which that `fd` is present) are woken up. |
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The performance impact of this would be more conspicuous on the server side. Here are a two examples of thundering herds on the server side. |
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Example 1: Listening fds on server |
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* A gRPC server can have multiple server completion queues (i.e completion queues which are used to listen for incoming channels). |
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* A gRPC server can also listen on more than one TCP-port. |
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* A listening socket is created for each port the gRPC server would be listening on. |
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* Every listening socket's fd is added to all the server completion queues' pollsets. (Currently we do not do any sharding of the listening fds across these pollsets). |
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This means that for every incoming new channel, all the threads waiting on all the pollsets are woken up. |
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Example 2: New Incoming-channel fds on server |
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* Currently, every new incoming channel's `fd` (i.e the socket `fd` that is returned by doing an `accept()` on the new incoming channel) is added to all the server completion queues' pollsets [^5]). |
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* Clearly, this would also cause all thundering herd problem for every read onthat fd |
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There are other scenarios especially on the client side where an fd can end up being on multiple pollsets which would cause thundering herds on the clients. |
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## 4. Proposed changes to the current `epoll`-based polling implementation: |
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The main idea in this proposal is to group 'related' `fds` into a single epoll-based set. This would ensure that only one thread wakes up in case of an event on one of the `fds` in the epoll set. |
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To accomplish this, we introduce a new abstraction called `polling_island` which will have an epoll set underneath (See **Figure 2** below). A `polling_island` contains the following: |
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* `epoll_fd`: The file descriptor of the underlying epoll set |
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* `fd_set`: The set of 'fds' in the pollset island i.e in the epoll set (The pollset island merging operation described later requires the list of fds in the pollset island and currently there is no API available to enumerate all the fds in an epoll set) |
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* `event_fd`: A level triggered _event fd_ that is used to wake up all the threads waiting on this epoll set (Note: This `event_fd` is added to the underlying epoll set during pollset island creation. This is useful in the pollset island merging operation described later) |
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* `merged_to`: The polling island into which this one merged. See section 4.2 (case 2) for more details on this. Also note that if `merged_to` is set, all the other fields in this polling island are not used anymore |
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In this new model, only one thread wakes up whenever an event of interest happens in an epoll set. |
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 |
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**Figure 2: Proposed changes** |
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### 4.1 Relation between `fd`, `pollset` and `polling_island:` |
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* An `fd` may belong to multiple `pollsets` but belongs to exactly one `polling_island` |
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* A `pollset` belongs to exactly one `polling_island` |
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* An `fd` and the `pollset(s`) it belongs to, have same `polling_island` |
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|
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### 4.2 Algorithm to add an `fd` to a `pollset` |
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There are two cases to check here: |
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* **Case 1:** Both `fd` and `pollset` already belong to the same `polling_island` |
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* This is straightforward and nothing really needs to be done here |
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* **Case 2:** The `fd `and `pollset` point to different `polling_islands`: In this case we _merge_ both the polling islands i.e: |
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* Add all the `fds` from the smaller `polling_island `to the larger `polling_island` and update the `merged_to` pointer on the smaller island to point to the larger island. |
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* Wake up all the threads waiting on the smaller `polling_island`'s `epoll_fd` (by signalling the `event_fd` on that island) and make them now wait on the larger `polling_island`'s `epoll_fd` |
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* Update `fd` and `pollset` to now point to the larger `polling_island` |
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|
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### 4.3 Directed wakeups: |
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The new implementation, just like the current implementation, does not provide us any guarantees that the thread that is woken up is the thread that is actually interested in the event. So the thread that woke up executes the callbacks and finally has to 'kick' the appropriate polling thread interested in the event. |
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|
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In the current implementation, every polling thread also had a `event_fd` on which it was listening to and hence waking it up was as simple as signalling that `event_fd`. However, using an `event_fd` also meant that every thread has to use a `poll()` (on `event_fd` and `epoll_fd`) instead of doing an `epoll_wait()` and this resulted in the thundering herd problems described above. |
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The proposal here is to use signals and kicking a thread would just be sending a signal to that thread. Unfortunately there are only a few signals available on posix systems and most of them have pre-determined behavior leaving only a few signals `SIGUSR1`, `SIGUSR2` and `SIGRTx (SIGRTMIN to SIGRTMAX)` for custom use. |
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The calling application might have registered other signal handlers for these signals. `We will provide a new API where the applications can "give a signal number" to gRPC library to use for this purpose. |
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|
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``` |
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void grpc_use_signal(int signal_num) |
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``` |
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|
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If the calling application does not provide a signal number, then the gRPC library will relegate to using a model similar to the current implementation (where every thread does a blocking `poll()` on its `wakeup_fd` and the `epoll_fd`). The function` psi_wait() `in figure 2 implements this logic. |
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|
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**>> **(**NOTE**: Or alternatively, we can implement a turnstile polling (i.e having only one thread calling `epoll_wait()` on the epoll set at any time - which all other threads call poll on their `wakeup_fds`) |
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in case of not getting a signal number from the applications. |
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## Notes |
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[^1]: Only exception is in case of name-resolution |
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[^2]: However, a `grpc_completion_queue_next()` and `grpc_completion_queue_pluck()` must not be called in parallel on the same completion queue |
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[^3]: The threads first do a blocking` poll()` with `[wakeup_fd, epoll_fd]`. If the `poll()` returns due to an event of interest in the epoll set, they then call a non-blocking i.e a zero-timeout `epoll_wait()` on the `epoll_fd` |
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[^4]: `event_fd` is the linux platform specific implementation of `grpc_wakeup_fd`. A `wakeup_fd` is used to wake up polling threads typically when the event for which the polling thread is waiting is already completed by some other thread. It is also used to wake up the polling threads in case of shutdowns or to re-evaluate the poller's interest in the fds to poll (the last scenario is only in case of `poll`-based (not `epoll`-based) implementation of `pollsets`). |
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[^5]: See more details about the issue here https://github.com/grpc/grpc/issues/5470 and for a proposed fix here: https://github.com/grpc/grpc/pull/6149 |
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# Stress Test framework for gRPC |
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(Sree Kuchibhotla - sreek@) |
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> Status: This is implemented. More details at [README.md](https://github.com/grpc/grpc/blob/master/tools/run_tests/stress_test/README.md) |
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|
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**I. GOALS** |
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|
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1) Build a stress test suite for gRPC: |
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|
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* Build a stress test suite that can Identify bugs by testing the system (gRPC server/client) under extreme conditions: |
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* High load |
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* High concurrency |
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* Limited resources |
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* Intermittent failures |
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* Should be integrated with Jenkins CI |
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|
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2) Make it generic enough (i.e build a generic test framework) that can be used for: |
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|
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* Executing M instances of a client against N instances of a server with an arbitrarily defined connection matrix |
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* Execute heterogenous test configurations - for example: Java stress test clients against C++ servers or Node clients against Python servers or TSAN C++ clients vs ASAN C++ Servers etc. |
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* Easy and Flexible enough that Devs can use it to recreate complex test scenarios |
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|
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The implementation effort is divided into two parts: |
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|
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* Building a "Stress Test Framework" to run the stress test suites- More details in **Section II** (The idea is that the Stress Test framework is generic enough that it would be easier to modify it to run other suites like interop-tests or custom test scenarios) |
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* Building a 'Stress test suite' - More details in **section III** |
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|
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**Terminology:** |
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|
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GCE - Google compute engine |
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GKE - Google Container engine |
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Kubernetes - Google's open source service scheduler / orchestrator. |
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|
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**Note:** The terms GKE and Kubernetes are used interchangeably in this document |
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|
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# II. STRESS TEST FRAMEWORK |
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|
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(The details of each step are explained below)) |
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 |
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**Figure 1** |
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|
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### Step 1 Read the test config, generate base docker images |
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|
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**_Test Config:_** The test configuration contains the following information: |
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|
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* _GKE info:_ GKE project and cluster info |
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* _Docker images:_ Instructions to build docker images |
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* _Client templates:_ One or more client templates each containing the following information: |
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* Which docker image to use |
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* Path to the client program to launch (within the docker image) |
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* Parameters to the client program |
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* _Server templates:_ Similar to Client templates - except that these are for servers |
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* Test matrix containing the following: |
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* _Server groups:_ One or more groups of servers containing the following info for each group |
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* Which server template to use |
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* How many instances to launch |
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* _Client groups:_ One or more groups of clients containing the following (for each group): |
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* Which client template to use |
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* How many instances to launch |
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* Which server group to talk to (all clients in this group will talk to all servers in the server group) |
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|
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The first step is to read the test config and build the docker images |
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|
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**_Stress server docker image:_** The following are the main files in the server docker images |
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|
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* _Interop_server:_ The server program |
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* `run_server.py`: This is a python script which is the entry point of the docker image (i.e this is the script that is called when the docker image is run in GKE). This script launches the interop server and also updates the status in BigQuery. If the interop_server fails for whatever reason, the script launch_server.py logs that status in BigQuery |
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|
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**_Stress client docker image:_** |
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|
||||
* Stress client: The stress test client. In addition to talking to the interop_server, the stress client also exports metrics (which can be queried by the metrics_client described below) |
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* Metrics client: Metrics client connects to the stress_client to get the current qps metrics. |
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* `run_client.py`: This is a python script which is the entry point of the docker image (i.e this is the script that is called when the docker image is run in GKE). This script launches the stress client and also updates the status in BigQuery. The script then periodically launches metrics client to query the qps from the stress client and then uploads the qps to BigQuery. |
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|
||||
### Step 2) Upload the docker images to GKE |
||||
The docker images are uploaded to the GKE registry |
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|
||||
### Step 3) Launch the tests in GKE |
||||
The test driver reads the test matrix (described in step 1) and creates the necessary server and client pods in GKE. |
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|
||||
### Step 4) Tests are run in GKE |
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GKE starts running the tests by calling the entry points in *each* docker image (i.e `run_server.py` or `run_client.py` depending on whcih docker image it is) |
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|
||||
### Step 5) Upload the status to GKE and Monitor the status in GKE |
||||
* 5.1 The tests periodically update their status in BigQuery |
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* 5.2 The test driver periodically checks the status in Bigquery to see if any tests failed. If any tests failed, the driver immediately stops the tests. If not, the driver continues to run the tests for a configurable amount of time. |
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|
||||
### Step 6) Create a summary report |
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The test driver creates a final summary report containing details about any test failures and information about how to connect the failed pods in GKE for debugging. |
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|
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@ -1,186 +0,0 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2015, Google Inc. |
||||
* 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. |
||||
* |
||||
*/ |
||||
|
||||
|
||||
// Generated by tools/codegen/extensions/gen_reflection_proto.sh
|
||||
// If you make any local change, they will be lost.
|
||||
// source: reflection.proto
|
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// Original file comments:
|
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// Copyright 2016, Google Inc.
|
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// 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.
|
||||
//
|
||||
// Service exported by server reflection
|
||||
//
|
||||
#ifndef GRPC_reflection_2eproto__INCLUDED |
||||
#define GRPC_reflection_2eproto__INCLUDED |
||||
|
||||
#include <grpc++/ext/reflection.pb.h> |
||||
|
||||
#include <grpc++/impl/codegen/async_stream.h> |
||||
#include <grpc++/impl/codegen/async_unary_call.h> |
||||
#include <grpc++/impl/codegen/method_handler_impl.h> |
||||
#include <grpc++/impl/codegen/proto_utils.h> |
||||
#include <grpc++/impl/codegen/rpc_method.h> |
||||
#include <grpc++/impl/codegen/service_type.h> |
||||
#include <grpc++/impl/codegen/status.h> |
||||
#include <grpc++/impl/codegen/stub_options.h> |
||||
#include <grpc++/impl/codegen/sync_stream.h> |
||||
|
||||
namespace grpc { |
||||
class CompletionQueue; |
||||
class Channel; |
||||
class RpcService; |
||||
class ServerCompletionQueue; |
||||
class ServerContext; |
||||
} // namespace grpc
|
||||
|
||||
namespace grpc { |
||||
namespace reflection { |
||||
namespace v1alpha { |
||||
|
||||
class ServerReflection GRPC_FINAL { |
||||
public: |
||||
class StubInterface { |
||||
public: |
||||
virtual ~StubInterface() {} |
||||
// The reflection service is structured as a bidirectional stream, ensuring
|
||||
// all related requests go to a single server.
|
||||
std::unique_ptr< ::grpc::ClientReaderWriterInterface< ::grpc::reflection::v1alpha::ServerReflectionRequest, ::grpc::reflection::v1alpha::ServerReflectionResponse>> ServerReflectionInfo(::grpc::ClientContext* context) { |
||||
return std::unique_ptr< ::grpc::ClientReaderWriterInterface< ::grpc::reflection::v1alpha::ServerReflectionRequest, ::grpc::reflection::v1alpha::ServerReflectionResponse>>(ServerReflectionInfoRaw(context)); |
||||
} |
||||
std::unique_ptr< ::grpc::ClientAsyncReaderWriterInterface< ::grpc::reflection::v1alpha::ServerReflectionRequest, ::grpc::reflection::v1alpha::ServerReflectionResponse>> AsyncServerReflectionInfo(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag) { |
||||
return std::unique_ptr< ::grpc::ClientAsyncReaderWriterInterface< ::grpc::reflection::v1alpha::ServerReflectionRequest, ::grpc::reflection::v1alpha::ServerReflectionResponse>>(AsyncServerReflectionInfoRaw(context, cq, tag)); |
||||
} |
||||
private: |
||||
virtual ::grpc::ClientReaderWriterInterface< ::grpc::reflection::v1alpha::ServerReflectionRequest, ::grpc::reflection::v1alpha::ServerReflectionResponse>* ServerReflectionInfoRaw(::grpc::ClientContext* context) = 0; |
||||
virtual ::grpc::ClientAsyncReaderWriterInterface< ::grpc::reflection::v1alpha::ServerReflectionRequest, ::grpc::reflection::v1alpha::ServerReflectionResponse>* AsyncServerReflectionInfoRaw(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag) = 0; |
||||
}; |
||||
class Stub GRPC_FINAL : public StubInterface { |
||||
public: |
||||
Stub(const std::shared_ptr< ::grpc::ChannelInterface>& channel); |
||||
std::unique_ptr< ::grpc::ClientReaderWriter< ::grpc::reflection::v1alpha::ServerReflectionRequest, ::grpc::reflection::v1alpha::ServerReflectionResponse>> ServerReflectionInfo(::grpc::ClientContext* context) { |
||||
return std::unique_ptr< ::grpc::ClientReaderWriter< ::grpc::reflection::v1alpha::ServerReflectionRequest, ::grpc::reflection::v1alpha::ServerReflectionResponse>>(ServerReflectionInfoRaw(context)); |
||||
} |
||||
std::unique_ptr< ::grpc::ClientAsyncReaderWriter< ::grpc::reflection::v1alpha::ServerReflectionRequest, ::grpc::reflection::v1alpha::ServerReflectionResponse>> AsyncServerReflectionInfo(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag) { |
||||
return std::unique_ptr< ::grpc::ClientAsyncReaderWriter< ::grpc::reflection::v1alpha::ServerReflectionRequest, ::grpc::reflection::v1alpha::ServerReflectionResponse>>(AsyncServerReflectionInfoRaw(context, cq, tag)); |
||||
} |
||||
|
||||
private: |
||||
std::shared_ptr< ::grpc::ChannelInterface> channel_; |
||||
::grpc::ClientReaderWriter< ::grpc::reflection::v1alpha::ServerReflectionRequest, ::grpc::reflection::v1alpha::ServerReflectionResponse>* ServerReflectionInfoRaw(::grpc::ClientContext* context) GRPC_OVERRIDE; |
||||
::grpc::ClientAsyncReaderWriter< ::grpc::reflection::v1alpha::ServerReflectionRequest, ::grpc::reflection::v1alpha::ServerReflectionResponse>* AsyncServerReflectionInfoRaw(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag) GRPC_OVERRIDE; |
||||
const ::grpc::RpcMethod rpcmethod_ServerReflectionInfo_; |
||||
}; |
||||
static std::unique_ptr<Stub> NewStub(const std::shared_ptr< ::grpc::ChannelInterface>& channel, const ::grpc::StubOptions& options = ::grpc::StubOptions()); |
||||
|
||||
class Service : public ::grpc::Service { |
||||
public: |
||||
Service(); |
||||
virtual ~Service(); |
||||
// The reflection service is structured as a bidirectional stream, ensuring
|
||||
// all related requests go to a single server.
|
||||
virtual ::grpc::Status ServerReflectionInfo(::grpc::ServerContext* context, ::grpc::ServerReaderWriter< ::grpc::reflection::v1alpha::ServerReflectionResponse, ::grpc::reflection::v1alpha::ServerReflectionRequest>* stream); |
||||
}; |
||||
template <class BaseClass> |
||||
class WithAsyncMethod_ServerReflectionInfo : public BaseClass { |
||||
private: |
||||
void BaseClassMustBeDerivedFromService(const Service *service) {} |
||||
public: |
||||
WithAsyncMethod_ServerReflectionInfo() { |
||||
::grpc::Service::MarkMethodAsync(0); |
||||
} |
||||
~WithAsyncMethod_ServerReflectionInfo() GRPC_OVERRIDE { |
||||
BaseClassMustBeDerivedFromService(this); |
||||
} |
||||
// disable synchronous version of this method
|
||||
::grpc::Status ServerReflectionInfo(::grpc::ServerContext* context, ::grpc::ServerReaderWriter< ::grpc::reflection::v1alpha::ServerReflectionResponse, ::grpc::reflection::v1alpha::ServerReflectionRequest>* stream) GRPC_FINAL GRPC_OVERRIDE { |
||||
abort(); |
||||
return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, ""); |
||||
} |
||||
void RequestServerReflectionInfo(::grpc::ServerContext* context, ::grpc::ServerAsyncReaderWriter< ::grpc::reflection::v1alpha::ServerReflectionResponse, ::grpc::reflection::v1alpha::ServerReflectionRequest>* stream, ::grpc::CompletionQueue* new_call_cq, ::grpc::ServerCompletionQueue* notification_cq, void *tag) { |
||||
::grpc::Service::RequestAsyncBidiStreaming(0, context, stream, new_call_cq, notification_cq, tag); |
||||
} |
||||
}; |
||||
typedef WithAsyncMethod_ServerReflectionInfo<Service > AsyncService; |
||||
template <class BaseClass> |
||||
class WithGenericMethod_ServerReflectionInfo : public BaseClass { |
||||
private: |
||||
void BaseClassMustBeDerivedFromService(const Service *service) {} |
||||
public: |
||||
WithGenericMethod_ServerReflectionInfo() { |
||||
::grpc::Service::MarkMethodGeneric(0); |
||||
} |
||||
~WithGenericMethod_ServerReflectionInfo() GRPC_OVERRIDE { |
||||
BaseClassMustBeDerivedFromService(this); |
||||
} |
||||
// disable synchronous version of this method
|
||||
::grpc::Status ServerReflectionInfo(::grpc::ServerContext* context, ::grpc::ServerReaderWriter< ::grpc::reflection::v1alpha::ServerReflectionResponse, ::grpc::reflection::v1alpha::ServerReflectionRequest>* stream) GRPC_FINAL GRPC_OVERRIDE { |
||||
abort(); |
||||
return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, ""); |
||||
} |
||||
}; |
||||
typedef Service StreamedUnaryService; |
||||
}; |
||||
|
||||
} // namespace v1alpha
|
||||
} // namespace reflection
|
||||
} // namespace grpc
|
||||
|
||||
|
||||
#endif // GRPC_reflection_2eproto__INCLUDED
|
||||
File diff suppressed because it is too large
Load Diff
@ -1,111 +0,0 @@ |
||||
/*
|
||||
* |
||||
* 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 GRPCXX_IMPL_CODEGEN_SYNC_NO_CXX11_H |
||||
#define GRPCXX_IMPL_CODEGEN_SYNC_NO_CXX11_H |
||||
|
||||
#include <grpc++/impl/codegen/core_codegen_interface.h> |
||||
|
||||
namespace grpc { |
||||
|
||||
extern CoreCodegenInterface *g_core_codegen_interface; |
||||
|
||||
template <class mutex> |
||||
class lock_guard; |
||||
class condition_variable; |
||||
|
||||
class mutex { |
||||
public: |
||||
mutex() { g_core_codegen_interface->gpr_mu_init(&mu_); } |
||||
~mutex() { g_core_codegen_interface->gpr_mu_destroy(&mu_); } |
||||
|
||||
private: |
||||
::gpr_mu mu_; |
||||
template <class mutex> |
||||
friend class lock_guard; |
||||
friend class condition_variable; |
||||
}; |
||||
|
||||
template <class mutex> |
||||
class lock_guard { |
||||
public: |
||||
lock_guard(mutex &mu) : mu_(mu), locked(true) { |
||||
g_core_codegen_interface->gpr_mu_lock(&mu.mu_); |
||||
} |
||||
~lock_guard() { unlock_internal(); } |
||||
|
||||
protected: |
||||
void lock_internal() { |
||||
if (!locked) g_core_codegen_interface->gpr_mu_lock(&mu_.mu_); |
||||
locked = true; |
||||
} |
||||
void unlock_internal() { |
||||
if (locked) g_core_codegen_interface->gpr_mu_unlock(&mu_.mu_); |
||||
locked = false; |
||||
} |
||||
|
||||
private: |
||||
mutex &mu_; |
||||
bool locked; |
||||
friend class condition_variable; |
||||
}; |
||||
|
||||
template <class mutex> |
||||
class unique_lock : public lock_guard<mutex> { |
||||
public: |
||||
unique_lock(mutex &mu) : lock_guard<mutex>(mu) {} |
||||
void lock() { this->lock_internal(); } |
||||
void unlock() { this->unlock_internal(); } |
||||
}; |
||||
|
||||
class condition_variable { |
||||
public: |
||||
condition_variable() { g_core_codegen_interface->gpr_cv_init(&cv_); } |
||||
~condition_variable() { g_core_codegen_interface->gpr_cv_destroy(&cv_); } |
||||
void wait(lock_guard<mutex> &mu) { |
||||
mu.locked = false; |
||||
g_core_codegen_interface->gpr_cv_wait( |
||||
&cv_, &mu.mu_.mu_, |
||||
g_core_codegen_interface->gpr_inf_future(GPR_CLOCK_REALTIME)); |
||||
mu.locked = true; |
||||
} |
||||
void notify_one() { g_core_codegen_interface->gpr_cv_signal(&cv_); } |
||||
void notify_all() { g_core_codegen_interface->gpr_cv_broadcast(&cv_); } |
||||
|
||||
private: |
||||
gpr_cv cv_; |
||||
}; |
||||
|
||||
} // namespace grpc
|
||||
|
||||
#endif // GRPCXX_IMPL_CODEGEN_SYNC_NO_CXX11_H
|
||||
@ -1,117 +0,0 @@ |
||||
/*
|
||||
* |
||||
* 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 GRPCXX_IMPL_THD_NO_CXX11_H |
||||
#define GRPCXX_IMPL_THD_NO_CXX11_H |
||||
|
||||
#include <grpc/support/thd.h> |
||||
|
||||
namespace grpc { |
||||
|
||||
class thread { |
||||
public: |
||||
template <class T> |
||||
thread(void (T::*fptr)(), T *obj) { |
||||
func_ = new thread_function<T>(fptr, obj); |
||||
joined_ = false; |
||||
start(); |
||||
} |
||||
template <class T, class U> |
||||
thread(void (T::*fptr)(U arg), T *obj, U arg) { |
||||
func_ = new thread_function_arg<T, U>(fptr, obj, arg); |
||||
joined_ = false; |
||||
start(); |
||||
} |
||||
~thread() { |
||||
if (!joined_) std::terminate(); |
||||
delete func_; |
||||
} |
||||
thread(thread &&other) |
||||
: func_(other.func_), thd_(other.thd_), joined_(other.joined_) { |
||||
other.joined_ = true; |
||||
other.func_ = NULL; |
||||
} |
||||
void join() { |
||||
gpr_thd_join(thd_); |
||||
joined_ = true; |
||||
} |
||||
|
||||
private: |
||||
void start() { |
||||
gpr_thd_options options = gpr_thd_options_default(); |
||||
gpr_thd_options_set_joinable(&options); |
||||
gpr_thd_new(&thd_, thread_func, (void *)func_, &options); |
||||
} |
||||
static void thread_func(void *arg) { |
||||
thread_function_base *func = (thread_function_base *)arg; |
||||
func->call(); |
||||
} |
||||
class thread_function_base { |
||||
public: |
||||
virtual ~thread_function_base() {} |
||||
virtual void call() = 0; |
||||
}; |
||||
template <class T> |
||||
class thread_function : public thread_function_base { |
||||
public: |
||||
thread_function(void (T::*fptr)(), T *obj) : fptr_(fptr), obj_(obj) {} |
||||
virtual void call() { (obj_->*fptr_)(); } |
||||
|
||||
private: |
||||
void (T::*fptr_)(); |
||||
T *obj_; |
||||
}; |
||||
template <class T, class U> |
||||
class thread_function_arg : public thread_function_base { |
||||
public: |
||||
thread_function_arg(void (T::*fptr)(U arg), T *obj, U arg) |
||||
: fptr_(fptr), obj_(obj), arg_(arg) {} |
||||
virtual void call() { (obj_->*fptr_)(arg_); } |
||||
|
||||
private: |
||||
void (T::*fptr_)(U arg); |
||||
T *obj_; |
||||
U arg_; |
||||
}; |
||||
thread_function_base *func_; |
||||
gpr_thd_id thd_; |
||||
bool joined_; |
||||
|
||||
// Disallow copy and assign.
|
||||
thread(const thread &); |
||||
void operator=(const thread &); |
||||
}; |
||||
|
||||
} // namespace grpc
|
||||
|
||||
#endif // GRPCXX_IMPL_THD_NO_CXX11_H
|
||||
@ -0,0 +1,70 @@ |
||||
/*
|
||||
* |
||||
* 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 GRPCXX_RESOURCE_QUOTA_H |
||||
#define GRPCXX_RESOURCE_QUOTA_H |
||||
|
||||
struct grpc_resource_quota; |
||||
|
||||
#include <grpc++/impl/codegen/config.h> |
||||
|
||||
namespace grpc { |
||||
|
||||
/// ResourceQuota represents a bound on memory usage by the gRPC library.
|
||||
/// A ResourceQuota can be attached to a server (via ServerBuilder), or a client
|
||||
/// channel (via ChannelArguments). gRPC will attempt to keep memory used by
|
||||
/// all attached entities below the ResourceQuota bound.
|
||||
class ResourceQuota final { |
||||
public: |
||||
explicit ResourceQuota(const grpc::string& name); |
||||
ResourceQuota(); |
||||
~ResourceQuota(); |
||||
|
||||
/// Resize this ResourceQuota to a new size. If new_size is smaller than the
|
||||
/// current size of the pool, memory usage will be monotonically decreased
|
||||
/// until it falls under new_size. No time bound is given for this to occur
|
||||
/// however.
|
||||
ResourceQuota& Resize(size_t new_size); |
||||
|
||||
grpc_resource_quota* c_resource_quota() const { return impl_; } |
||||
|
||||
private: |
||||
ResourceQuota(const ResourceQuota& rhs); |
||||
ResourceQuota& operator=(const ResourceQuota& rhs); |
||||
|
||||
grpc_resource_quota* const impl_; |
||||
}; |
||||
|
||||
} // namespace grpc
|
||||
|
||||
#endif // GRPCXX_RESOURCE_QUOTA_H
|
||||
@ -0,0 +1,67 @@ |
||||
/*
|
||||
* |
||||
* 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 GRPCXX_TEST_SERVER_CONTEXT_TEST_SPOUSE_H |
||||
#define GRPCXX_TEST_SERVER_CONTEXT_TEST_SPOUSE_H |
||||
|
||||
#include <map> |
||||
|
||||
#include <grpc++/server_context.h> |
||||
|
||||
namespace grpc { |
||||
namespace testing { |
||||
|
||||
// A test-only class to access private members and methods of ServerContext.
|
||||
class ServerContextTestSpouse { |
||||
public: |
||||
explicit ServerContextTestSpouse(ServerContext* ctx) : ctx_(ctx) {} |
||||
|
||||
// Inject client metadata to the ServerContext for the test. The test spouse
|
||||
// must be alive when ServerContext::client_metadata is called.
|
||||
void AddClientMetadata(const grpc::string& key, const grpc::string& value); |
||||
std::multimap<grpc::string, grpc::string> GetInitialMetadata() const { |
||||
return ctx_->initial_metadata_; |
||||
} |
||||
std::multimap<grpc::string, grpc::string> GetTrailingMetadata() const { |
||||
return ctx_->trailing_metadata_; |
||||
} |
||||
|
||||
private: |
||||
ServerContext* ctx_; // not owned
|
||||
std::multimap<grpc::string, grpc::string> client_metadata_storage_; |
||||
}; |
||||
|
||||
} // namespace testing
|
||||
} // namespace grpc
|
||||
|
||||
#endif // GRPCXX_TEST_SERVER_CONTEXT_TEST_SPOUSE_H
|
||||
@ -0,0 +1,4 @@ |
||||
#Overview |
||||
|
||||
This directory contains source code for gRPC protocol buffer compiler (*protoc*) plugins. Along with `protoc`, |
||||
these plugins are used to generate gRPC client and server stubs from `.proto` files. |
||||
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Reference in new issue