Integrate the KJ event loop into Python's asyncio event loop (#310)
* Integrate the KJ event loop into Python's asyncio event loop Fix #256 This PR attempts to remove the slow and expensive polling behavior for asyncio in favor of proper linking of the KJ event loop to the asyncio event loop. * Don't memcopy buffer * Improve promise cancellation and prepare for timer implementation * Add attribution for asyncProvider.cpp * Implement timeout * Cleanup * First round of simplifications * Add more a_wait functions and a shutdown function * Fix edge-cases with loop shutdown * Clean up calculator examples * Cleanup * Cleanup * Reformat * Fix warnings * Reformat again * Compatibility with macos * Inline the asyncio loop in some places where this is feasible * Add todo * Fix * Remove synchronous wait * Wrap fd listening callbacks in a class * Remove poll_forever * Remove the thread-local/thread-global optimization This will not matter much soon anyway, and simplifies things * Share promise code by using fused types * Improve refcounting of python objects in promises We replace many instances of PyObject* by Own<PyRefCounter> for more automatic reference management. * Code wrapPyFunc in a similar way to wrapPyFuncNoArg * Refactor capabilityHelper, fix several memory bugs for promises and add __await__ * Improve promise ownership, reduce memory leaks Promise wrappers now hold a Own<Promise<Own<PyRefCounter>>> object. This might seem like excessive nesting of objects (which to some degree it is, but with good reason): - The outer Own is needed because Cython cannot allocate objects without a nullary constructor on the stack (Promise doesn't have a nullary constructor). Additionally, I believe it would be difficult or impossible to detect when a promise is cancelled/moved if we use a bare Promise. - Every promise returns a Owned PyRefCounter. PyRefCounter makes sure that a reference to the returned object keeps existing until the promise is fulfilled or cancelled. Previously, this was attempted using attach, which is redundant and makes reasoning about PyINCREF and PyDECREF very difficult. - Because a promise holds a Own<Promise<...>>, when we perform any kind of action on that promise (a_wait, then, ...), we have to explicitly move() the ownership around. This will leave the original promise with a NULL-pointer, which we can easily detect as a cancelled promise. Promises now only hold references to their 'parents' when strictly needed. This should reduce memory pressure. * Simplify and test the promise joining functionality * Attach forgotten parent * Catch exceptions in add_reader and friends * Further cleanup of memory leaks * Get rid of a_wait() in examples * Cancel all fd read operations when the python asyncio loop is closed * Formatting * Remove support for capnp < 7000 * Bring asyncProvider.cpp more in line with upstream async-io-unix.c++ It was originally copied from the nodejs implementation, which in turn copied from async-io-unix.c++. But that copy is pretty old. * Fix a bug that caused file descriptors to never be closed * Implement AsyncIoStream based on Python transports and protocols * Get rid of asyncProvider All asyncio now goes through _AsyncIoStream * Formatting * Add __dict__ to PyAsyncIoStreamProtocol for python 3.7 * Reintroduce strange ipv4/ipv6 selection code to make ci happy * Extra pause_reading() * Work around more python bugs * Be careful to only close transport when this is still possible * Move pause_reading() workaround
This commit is contained in:
Lasse Blaauwbroek
committed by
GitHub
GitHub
parent
ed894304a3
commit
d32854eb00
@@ -1,69 +1,13 @@
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#pragma once
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#include "kj/async.h"
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#include "Python.h"
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#include "capabilityHelper.h"
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class PyEventPort: public kj::EventPort {
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public:
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PyEventPort(PyObject * _py_event_port): py_event_port(_py_event_port) {
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// We don't need to incref/decref, since this C++ class will be owned by the Python wrapper class, and we'll make sure the python class doesn't refcount to 0 elsewhere.
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// Py_INCREF(py_event_port);
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}
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virtual bool wait() {
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GILAcquire gil;
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PyObject_CallMethod(py_event_port, const_cast<char *>("wait"), NULL);
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return true; // TODO: get the bool result from python
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}
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virtual bool poll() {
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GILAcquire gil;
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PyObject_CallMethod(py_event_port, const_cast<char *>("poll"), NULL);
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return true; // TODO: get the bool result from python
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}
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virtual void setRunnable(bool runnable) {
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GILAcquire gil;
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PyObject * arg = Py_False;
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if (runnable)
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arg = Py_True;
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PyObject_CallMethod(py_event_port, const_cast<char *>("set_runnable"), const_cast<char *>("o"), arg);
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}
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private:
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PyObject * py_event_port;
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};
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void waitNeverDone(kj::WaitScope & scope) {
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GILRelease gil;
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kj::NEVER_DONE.wait(scope);
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}
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void pollWaitScope(kj::WaitScope & scope) {
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GILRelease gil;
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scope.poll();
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}
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kj::Timer * getTimer(kj::AsyncIoContext * context) {
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return &context->lowLevelProvider->getTimer();
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}
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void waitVoidPromise(kj::Promise<void> * promise, kj::WaitScope & scope) {
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GILRelease gil;
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promise->wait(scope);
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}
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PyObject * waitPyPromise(kj::Promise<PyObject *> * promise, kj::WaitScope & scope) {
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GILRelease gil;
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return promise->wait(scope);
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}
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capnp::Response< ::capnp::DynamicStruct> * waitRemote(capnp::RemotePromise< ::capnp::DynamicStruct> * promise, kj::WaitScope & scope) {
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GILRelease gil;
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capnp::Response< ::capnp::DynamicStruct> * waitRemote(kj::Own<capnp::RemotePromise<::capnp::DynamicStruct>> promise,
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kj::WaitScope & scope) {
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return new capnp::Response< ::capnp::DynamicStruct>(promise->wait(scope));
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}
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bool pollRemote(capnp::RemotePromise< ::capnp::DynamicStruct> * promise, kj::WaitScope & scope) {
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GILRelease gil;
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return promise->poll(scope);
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}
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@@ -1,53 +0,0 @@
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#pragma once
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#include "kj/async.h"
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#include "kj/async-io.h"
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class AsyncIoStreamReadHelper {
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public:
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AsyncIoStreamReadHelper(kj::AsyncIoStream * _stream, kj::WaitScope * _scope, size_t bufsize) {
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io_stream = _stream;
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wait_scope = _scope;
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ready = false;
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buffer_read_size = 0;
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buffer = new unsigned char[bufsize];
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promise = io_stream->read(buffer, 1, bufsize);
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}
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~AsyncIoStreamReadHelper() {
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delete[] buffer;
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}
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bool poll() {
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bool result = promise.poll(*wait_scope);
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if (result) {
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ready = true;
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buffer_read_size = promise.wait(*wait_scope);
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}
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return result;
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}
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size_t read_size() {
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if (!ready) {
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return 0;
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}
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return buffer_read_size;
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}
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void * read_buffer() {
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if (!ready) {
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return 0;
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}
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return buffer;
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}
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private:
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kj::AsyncIoStream * io_stream;
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kj::WaitScope * wait_scope;
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kj::Promise<size_t> promise = nullptr;
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unsigned char *buffer;
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size_t buffer_read_size;
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bool ready;
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};
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@@ -1,8 +1,9 @@
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#include "capnp/helpers/capabilityHelper.h"
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#include "capnp/lib/capnp_api.h"
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::kj::Promise<PyObject *> convert_to_pypromise(capnp::RemotePromise<capnp::DynamicStruct> & promise) {
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return promise.then([](capnp::Response<capnp::DynamicStruct>&& response) { return wrap_dynamic_struct_reader(response); } );
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::kj::Promise<kj::Own<PyRefCounter>> convert_to_pypromise(kj::Own<capnp::RemotePromise<capnp::DynamicStruct>> promise) {
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return promise->then([](capnp::Response<capnp::DynamicStruct>&& response) {
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return stealPyRef(wrap_dynamic_struct_reader(response)); } );
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}
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void reraise_kj_exception() {
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@@ -57,85 +58,73 @@ void check_py_error() {
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}
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}
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kj::Promise<PyObject *> wrapPyFunc(PyObject * func, PyObject * arg) {
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inline kj::Promise<kj::Own<PyRefCounter>> maybeUnwrapPromise(PyObject * result) {
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check_py_error();
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auto promise = extract_promise(result);
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Py_DECREF(result);
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return kj::mv(*promise);
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}
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kj::Promise<kj::Own<PyRefCounter>> wrapPyFunc(kj::Own<PyRefCounter> func, kj::Own<PyRefCounter> arg) {
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GILAcquire gil;
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auto arg_promise = extract_promise(arg);
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if(arg_promise == NULL) {
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PyObject * result = PyObject_CallFunctionObjArgs(func, arg, NULL);
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Py_DECREF(arg);
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check_py_error();
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auto promise = extract_promise(result);
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if(promise != NULL)
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return kj::mv(*promise); // TODO: delete promise, see incref of containing promise in capnp.pyx
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auto remote_promise = extract_remote_promise(result);
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if(remote_promise != NULL)
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return convert_to_pypromise(*remote_promise); // TODO: delete promise, see incref of containing promise in capnp.pyx
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return result;
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}
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else {
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return arg_promise->then([&](PyObject * new_arg){ return wrapPyFunc(func, new_arg); });// TODO: delete arg_promise?
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}
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// Creates an owned reference, which will be destroyed in maybeUnwrapPromise
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PyObject * result = PyObject_CallFunctionObjArgs(func->obj, arg->obj, NULL);
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return maybeUnwrapPromise(result);
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}
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kj::Promise<PyObject *> wrapPyFuncNoArg(PyObject * func) {
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kj::Promise<kj::Own<PyRefCounter>> wrapPyFuncNoArg(kj::Own<PyRefCounter> func) {
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GILAcquire gil;
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PyObject * result = PyObject_CallFunctionObjArgs(func, NULL);
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check_py_error();
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auto promise = extract_promise(result);
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if(promise != NULL)
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return kj::mv(*promise);
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auto remote_promise = extract_remote_promise(result);
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if(remote_promise != NULL)
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return convert_to_pypromise(*remote_promise); // TODO: delete promise, see incref of containing promise in capnp.pyx
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return result;
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// Creates an owned reference, which will be destroyed in maybeUnwrapPromise
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PyObject * result = PyObject_CallFunctionObjArgs(func->obj, NULL);
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return maybeUnwrapPromise(result);
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}
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kj::Promise<PyObject *> wrapRemoteCall(PyObject * func, capnp::Response<capnp::DynamicStruct> & arg) {
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kj::Promise<kj::Own<PyRefCounter>> wrapRemoteCall(kj::Own<PyRefCounter> func, capnp::Response<capnp::DynamicStruct> & arg) {
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GILAcquire gil;
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PyObject * ret = wrap_remote_call(func, arg);
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check_py_error();
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auto promise = extract_promise(ret);
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if(promise != NULL)
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return kj::mv(*promise);
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auto remote_promise = extract_remote_promise(ret);
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if(remote_promise != NULL)
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return convert_to_pypromise(*remote_promise); // TODO: delete promise, see incref of containing promise in capnp.pyx
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return ret;
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// Creates an owned reference, which will be destroyed in maybeUnwrapPromise
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PyObject * ret = wrap_remote_call(func->obj, arg);
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return maybeUnwrapPromise(ret);
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}
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::kj::Promise<PyObject *> then(kj::Promise<PyObject *> & promise, PyObject * func, PyObject * error_func) {
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if(error_func == Py_None)
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return promise.then([func](PyObject * arg) { return wrapPyFunc(func, arg); } );
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::kj::Promise<kj::Own<PyRefCounter>> then(kj::Own<kj::Promise<kj::Own<PyRefCounter>>> promise,
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kj::Own<PyRefCounter> func, kj::Own<PyRefCounter> error_func) {
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if(error_func->obj == Py_None)
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return promise->then(kj::mvCapture(func, [](auto func, kj::Own<PyRefCounter> arg) {
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return wrapPyFunc(kj::mv(func), kj::mv(arg)); } ));
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else
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return promise.then([func](PyObject * arg) { return wrapPyFunc(func, arg); }
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, [error_func](kj::Exception arg) { return wrapPyFunc(error_func, wrap_kj_exception(arg)); } );
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return promise->then
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(kj::mvCapture(func, [](auto func, kj::Own<PyRefCounter> arg) {
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return wrapPyFunc(kj::mv(func), kj::mv(arg)); }),
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kj::mvCapture(error_func, [](auto error_func, kj::Exception arg) {
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return wrapPyFunc(kj::mv(error_func), stealPyRef(wrap_kj_exception(arg))); } ));
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}
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::kj::Promise<PyObject *> then(::capnp::RemotePromise< ::capnp::DynamicStruct> & promise, PyObject * func, PyObject * error_func) {
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if(error_func == Py_None)
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return promise.then([func](capnp::Response<capnp::DynamicStruct>&& arg) { return wrapRemoteCall(func, arg); } );
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::kj::Promise<kj::Own<PyRefCounter>> then(kj::Own<::capnp::RemotePromise<::capnp::DynamicStruct>> promise,
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kj::Own<PyRefCounter> func, kj::Own<PyRefCounter> error_func) {
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if(error_func->obj == Py_None)
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return promise->then(kj::mvCapture(func, [](auto func, capnp::Response<capnp::DynamicStruct>&& arg) {
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return wrapRemoteCall(kj::mv(func), arg); } ));
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else
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return promise.then([func](capnp::Response<capnp::DynamicStruct>&& arg) { return wrapRemoteCall(func, arg); }
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, [error_func](kj::Exception arg) { return wrapPyFunc(error_func, wrap_kj_exception(arg)); } );
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return promise->then
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(kj::mvCapture(func, [](auto func, capnp::Response<capnp::DynamicStruct>&& arg) {
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return wrapRemoteCall(kj::mv(func), arg); }),
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kj::mvCapture(error_func, [](auto error_func, kj::Exception arg) {
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return wrapPyFunc(kj::mv(error_func), stealPyRef(wrap_kj_exception(arg))); } ));
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}
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::kj::Promise<PyObject *> then(kj::Promise<void> & promise, PyObject * func, PyObject * error_func) {
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if(error_func == Py_None)
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return promise.then([func]() { return wrapPyFuncNoArg(func); } );
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::kj::Promise<kj::Own<PyRefCounter>> then(kj::Own<kj::Promise<void>> promise,
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kj::Own<PyRefCounter> func, kj::Own<PyRefCounter> error_func) {
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if(error_func->obj == Py_None)
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return promise->then(kj::mvCapture(func, [](auto func) { return wrapPyFuncNoArg(kj::mv(func)); } ));
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else
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return promise.then([func]() { return wrapPyFuncNoArg(func); }
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, [error_func](kj::Exception arg) { return wrapPyFunc(error_func, wrap_kj_exception(arg)); } );
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return promise->then(kj::mvCapture(func, [](auto func) { return wrapPyFuncNoArg(kj::mv(func)); }),
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kj::mvCapture(error_func, [](auto error_func, kj::Exception arg) {
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return wrapPyFunc(kj::mv(error_func), stealPyRef(wrap_kj_exception(arg))); } ));
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}
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::kj::Promise<PyObject *> then(kj::Promise<kj::Array<PyObject *> > && promise) {
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return promise.then([](kj::Array<PyObject *>&& arg) { return convert_array_pyobject(arg); } );
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::kj::Promise<kj::Own<PyRefCounter>> then(kj::Promise<kj::Array<kj::Own<PyRefCounter>> > && promise) {
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return promise.then([](kj::Array<kj::Own<PyRefCounter>>&& arg) {
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return stealPyRef(convert_array_pyobject(arg)); } );
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}
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kj::Promise<void> PythonInterfaceDynamicImpl::call(capnp::InterfaceSchema::Method method,
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@@ -154,6 +143,66 @@ kj::Promise<void> PythonInterfaceDynamicImpl::call(capnp::InterfaceSchema::Metho
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return ret;
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};
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class ReadPromiseAdapter {
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public:
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ReadPromiseAdapter(kj::PromiseFulfiller<size_t>& fulfiller, PyObject* protocol,
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void* buffer, size_t minBytes, size_t maxBytes)
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: protocol(protocol) {
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_asyncio_stream_read_start(protocol, buffer, minBytes, maxBytes, fulfiller);
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}
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~ReadPromiseAdapter() {
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_asyncio_stream_read_stop(protocol);
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}
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private:
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PyObject* protocol;
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};
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class WritePromiseAdapter {
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public:
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WritePromiseAdapter(kj::PromiseFulfiller<void>& fulfiller, PyObject* protocol,
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kj::ArrayPtr<const kj::ArrayPtr<const kj::byte>> pieces)
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: protocol(protocol) {
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_asyncio_stream_write_start(protocol, pieces, fulfiller);
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}
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~WritePromiseAdapter() {
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_asyncio_stream_write_stop(protocol);
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}
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private:
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PyObject* protocol;
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};
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PyAsyncIoStream::~PyAsyncIoStream() {
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_asyncio_stream_close(protocol->obj);
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}
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kj::Promise<size_t> PyAsyncIoStream::tryRead(void* buffer, size_t minBytes, size_t maxBytes) {
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return kj::newAdaptedPromise<size_t, ReadPromiseAdapter>(protocol->obj, buffer, minBytes, maxBytes);
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}
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kj::Promise<void> PyAsyncIoStream::write(const void* buffer, size_t size) {
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KJ_UNIMPLEMENTED("No use-case AsyncIoStream::write was found yet.");
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}
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kj::Promise<void> PyAsyncIoStream::write(kj::ArrayPtr<const kj::ArrayPtr<const kj::byte>> pieces) {
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return kj::newAdaptedPromise<void, WritePromiseAdapter>(protocol->obj, pieces);
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}
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kj::Promise<void> PyAsyncIoStream::whenWriteDisconnected() {
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// TODO: Possibly connect this to protocol.connection_lost?
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return kj::NEVER_DONE;
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}
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void PyAsyncIoStream::shutdownWrite() {
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_asyncio_stream_shutdown_write(protocol->obj);
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}
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void init_capnp_api() {
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import_capnp__lib__capnp();
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}
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@@ -1,6 +1,7 @@
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#pragma once
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#include "capnp/dynamic.h"
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#include <kj/async-io.h>
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#include <stdexcept>
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#include "Python.h"
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@@ -26,57 +27,6 @@ public:
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PyThreadState *_save; // The macros above read/write from this variable
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};
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::kj::Promise<PyObject *> convert_to_pypromise(capnp::RemotePromise<capnp::DynamicStruct> & promise);
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inline ::kj::Promise<PyObject *> convert_to_pypromise(kj::Promise<void> & promise) {
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return promise.then([]() {
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GILAcquire gil;
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Py_INCREF( Py_None );
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return Py_None;
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});
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}
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template<class T>
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::kj::Promise<void> convert_to_voidpromise(kj::Promise<T> & promise) {
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return promise.then([](T) { } );
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}
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void reraise_kj_exception();
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void check_py_error();
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kj::Promise<PyObject *> wrapPyFunc(PyObject * func, PyObject * arg);
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kj::Promise<PyObject *> wrapPyFuncNoArg(PyObject * func);
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kj::Promise<PyObject *> wrapRemoteCall(PyObject * func, capnp::Response<capnp::DynamicStruct> & arg);
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::kj::Promise<PyObject *> then(kj::Promise<PyObject *> & promise, PyObject * func, PyObject * error_func);
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::kj::Promise<PyObject *> then(::capnp::RemotePromise< ::capnp::DynamicStruct> & promise, PyObject * func, PyObject * error_func);
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::kj::Promise<PyObject *> then(kj::Promise<void> & promise, PyObject * func, PyObject * error_func);
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|
||||
::kj::Promise<PyObject *> then(kj::Promise<kj::Array<PyObject *> > && promise);
|
||||
|
||||
class PythonInterfaceDynamicImpl final: public capnp::DynamicCapability::Server {
|
||||
public:
|
||||
PyObject * py_server;
|
||||
|
||||
PythonInterfaceDynamicImpl(capnp::InterfaceSchema & schema, PyObject * _py_server)
|
||||
: capnp::DynamicCapability::Server(schema), py_server(_py_server) {
|
||||
GILAcquire gil;
|
||||
Py_INCREF(_py_server);
|
||||
}
|
||||
|
||||
~PythonInterfaceDynamicImpl() {
|
||||
GILAcquire gil;
|
||||
Py_DECREF(py_server);
|
||||
}
|
||||
|
||||
kj::Promise<void> call(capnp::InterfaceSchema::Method method,
|
||||
capnp::CallContext< capnp::DynamicStruct, capnp::DynamicStruct> context);
|
||||
};
|
||||
|
||||
class PyRefCounter {
|
||||
public:
|
||||
PyObject * obj;
|
||||
@@ -97,6 +47,63 @@ public:
|
||||
}
|
||||
};
|
||||
|
||||
inline kj::Own<PyRefCounter> stealPyRef(PyObject* o) {
|
||||
auto ret = kj::heap<PyRefCounter>(o);
|
||||
Py_DECREF(o);
|
||||
return ret;
|
||||
}
|
||||
|
||||
::kj::Promise<kj::Own<PyRefCounter>> convert_to_pypromise(kj::Own<capnp::RemotePromise<capnp::DynamicStruct>> promise);
|
||||
|
||||
inline ::kj::Promise<kj::Own<PyRefCounter>> convert_to_pypromise(kj::Own<kj::Promise<void>> promise) {
|
||||
return promise->then([]() {
|
||||
GILAcquire gil;
|
||||
return kj::heap<PyRefCounter>(Py_None);
|
||||
});
|
||||
}
|
||||
|
||||
template<class T>
|
||||
::kj::Promise<void> convert_to_voidpromise(kj::Own<kj::Promise<T>> promise) {
|
||||
return promise->then([](T) { } );
|
||||
}
|
||||
|
||||
void reraise_kj_exception();
|
||||
|
||||
void check_py_error();
|
||||
|
||||
inline kj::Promise<kj::Own<PyRefCounter>> wrapSizePromise(kj::Promise<size_t> promise) {
|
||||
return promise.then([](size_t response) { return stealPyRef(PyLong_FromSize_t(response)); } );
|
||||
}
|
||||
|
||||
::kj::Promise<kj::Own<PyRefCounter>> then(kj::Own<kj::Promise<kj::Own<PyRefCounter>>> promise,
|
||||
kj::Own<PyRefCounter> func, kj::Own<PyRefCounter> error_func);
|
||||
::kj::Promise<kj::Own<PyRefCounter>> then(kj::Own<::capnp::RemotePromise< ::capnp::DynamicStruct>> promise,
|
||||
kj::Own<PyRefCounter> func, kj::Own<PyRefCounter> error_func);
|
||||
|
||||
::kj::Promise<kj::Own<PyRefCounter>> then(kj::Own<kj::Promise<void>> promise,
|
||||
kj::Own<PyRefCounter>func, kj::Own<PyRefCounter> error_func);
|
||||
|
||||
::kj::Promise<kj::Own<PyRefCounter>> then(kj::Promise<kj::Array<kj::Own<PyRefCounter>> > && promise);
|
||||
|
||||
class PythonInterfaceDynamicImpl final: public capnp::DynamicCapability::Server {
|
||||
public:
|
||||
PyObject * py_server;
|
||||
|
||||
PythonInterfaceDynamicImpl(capnp::InterfaceSchema & schema, PyObject * _py_server)
|
||||
: capnp::DynamicCapability::Server(schema), py_server(_py_server) {
|
||||
GILAcquire gil;
|
||||
Py_INCREF(_py_server);
|
||||
}
|
||||
|
||||
~PythonInterfaceDynamicImpl() {
|
||||
GILAcquire gil;
|
||||
Py_DECREF(py_server);
|
||||
}
|
||||
|
||||
kj::Promise<void> call(capnp::InterfaceSchema::Method method,
|
||||
capnp::CallContext< capnp::DynamicStruct, capnp::DynamicStruct> context);
|
||||
};
|
||||
|
||||
inline capnp::DynamicCapability::Client new_client(capnp::InterfaceSchema & schema, PyObject * server) {
|
||||
return capnp::DynamicCapability::Client(kj::heap<PythonInterfaceDynamicImpl>(schema, server));
|
||||
}
|
||||
@@ -108,4 +115,30 @@ inline capnp::Capability::Client server_to_client(capnp::InterfaceSchema & schem
|
||||
return kj::heap<PythonInterfaceDynamicImpl>(schema, server);
|
||||
}
|
||||
|
||||
class PyAsyncIoStream: public kj::AsyncIoStream {
|
||||
public:
|
||||
kj::Own<PyRefCounter> protocol;
|
||||
|
||||
PyAsyncIoStream(kj::Own<PyRefCounter> protocol) : protocol(kj::mv(protocol)) {}
|
||||
~PyAsyncIoStream();
|
||||
|
||||
kj::Promise<size_t> tryRead(void* buffer, size_t minBytes, size_t maxBytes);
|
||||
|
||||
kj::Promise<void> write(const void* buffer, size_t size);
|
||||
|
||||
kj::Promise<void> write(kj::ArrayPtr<const kj::ArrayPtr<const kj::byte>> pieces);
|
||||
|
||||
kj::Promise<void> whenWriteDisconnected();
|
||||
|
||||
void shutdownWrite();
|
||||
};
|
||||
|
||||
template <typename T>
|
||||
inline void rejectDisconnected(kj::PromiseFulfiller<T>& fulfiller, kj::StringPtr message) {
|
||||
fulfiller.reject(KJ_EXCEPTION(DISCONNECTED, message));
|
||||
}
|
||||
inline void rejectVoidDisconnected(kj::PromiseFulfiller<void>& fulfiller, kj::StringPtr message) {
|
||||
fulfiller.reject(KJ_EXCEPTION(DISCONNECTED, message));
|
||||
}
|
||||
|
||||
void init_capnp_api();
|
||||
|
||||
@@ -1,8 +1,9 @@
|
||||
from capnp.includes.capnp_cpp cimport (
|
||||
Maybe, ReaderOptions, DynamicStruct, Request, Response, PyPromise, VoidPromise, PyPromiseArray,
|
||||
Maybe, ReaderOptions, DynamicStruct, Request, Response, Promise, PyPromise, VoidPromise, PyPromiseArray,
|
||||
RemotePromise, DynamicCapability, InterfaceSchema, EnumSchema, StructSchema, DynamicValue,
|
||||
Capability, RpcSystem, MessageBuilder, MessageReader, TwoPartyVatNetwork, AnyPointer,
|
||||
DynamicStruct_Builder, WaitScope, AsyncIoContext, StringPtr, TaskSet, Timer, AsyncIoStreamReadHelper,
|
||||
DynamicStruct_Builder, WaitScope, AsyncIoContext, StringPtr, TaskSet, Timer,
|
||||
LowLevelAsyncIoProvider, AsyncIoProvider, Own, PyRefCounter
|
||||
)
|
||||
|
||||
from capnp.includes.schema_cpp cimport ByteArray
|
||||
@@ -20,31 +21,27 @@ cdef extern from "capnp/helpers/fixMaybe.h":
|
||||
cdef extern from "capnp/helpers/capabilityHelper.h":
|
||||
# PyPromise evalLater(EventLoop &, PyObject * func)
|
||||
# PyPromise there(EventLoop & loop, PyPromise & promise, PyObject * func, PyObject * error_func)
|
||||
PyPromise then(PyPromise & promise, PyObject * func, PyObject * error_func)
|
||||
PyPromise then(RemotePromise & promise, PyObject * func, PyObject * error_func)
|
||||
PyPromise then(VoidPromise & promise, PyObject * func, PyObject * error_func)
|
||||
PyPromise then(Own[PyPromise] promise, Own[PyRefCounter] func, Own[PyRefCounter] error_func)
|
||||
PyPromise then(Own[RemotePromise] promise, Own[PyRefCounter] func, Own[PyRefCounter] error_func)
|
||||
PyPromise then(Own[VoidPromise] promise, Own[PyRefCounter] func, Own[PyRefCounter] error_func)
|
||||
PyPromise then(PyPromiseArray & promise)
|
||||
DynamicCapability.Client new_client(InterfaceSchema&, PyObject *)
|
||||
DynamicValue.Reader new_server(InterfaceSchema&, PyObject *)
|
||||
Capability.Client server_to_client(InterfaceSchema&, PyObject *)
|
||||
PyPromise convert_to_pypromise(RemotePromise&)
|
||||
PyPromise convert_to_pypromise(VoidPromise&)
|
||||
VoidPromise convert_to_voidpromise(PyPromise&)
|
||||
PyPromise convert_to_pypromise(Own[RemotePromise])
|
||||
PyPromise convert_to_pypromise(Own[VoidPromise])
|
||||
VoidPromise convert_to_voidpromise(Own[PyPromise])
|
||||
PyPromise wrapSizePromise(Promise[size_t])
|
||||
void init_capnp_api()
|
||||
|
||||
cdef extern from "capnp/helpers/rpcHelper.h":
|
||||
Capability.Client bootstrapHelper(RpcSystem&)
|
||||
Capability.Client bootstrapHelperServer(RpcSystem&)
|
||||
PyPromise connectServer(TaskSet &, Capability.Client, AsyncIoContext *, StringPtr, ReaderOptions &)
|
||||
PyPromise connectServer(TaskSet &, Capability.Client, AsyncIoProvider *, StringPtr, ReaderOptions &)
|
||||
|
||||
cdef extern from "capnp/helpers/serialize.h":
|
||||
ByteArray messageToPackedBytes(MessageBuilder &, size_t wordCount)
|
||||
|
||||
cdef extern from "capnp/helpers/asyncHelper.h":
|
||||
void waitNeverDone(WaitScope&)
|
||||
void pollWaitScope(WaitScope&)
|
||||
Response * waitRemote(RemotePromise *, WaitScope&)
|
||||
bool pollRemote(RemotePromise *, WaitScope&)
|
||||
PyObject * waitPyPromise(PyPromise *, WaitScope&)
|
||||
void waitVoidPromise(VoidPromise *, WaitScope&)
|
||||
Timer * getTimer(AsyncIoContext *) except +reraise_kj_exception
|
||||
void waitNeverDone(WaitScope&) except +reraise_kj_exception nogil
|
||||
Response * waitRemote(Own[RemotePromise], WaitScope&) except +reraise_kj_exception nogil
|
||||
|
||||
@@ -9,11 +9,8 @@ cdef extern from "capnp/helpers/capabilityHelper.h":
|
||||
void reraise_kj_exception()
|
||||
cdef cppclass PyRefCounter:
|
||||
PyRefCounter(PyObject *)
|
||||
PyObject * obj
|
||||
|
||||
cdef extern from "capnp/helpers/rpcHelper.h":
|
||||
cdef cppclass ErrorHandler:
|
||||
pass
|
||||
|
||||
cdef extern from "capnp/helpers/asyncHelper.h":
|
||||
cdef cppclass PyEventPort:
|
||||
PyEventPort(PyObject *)
|
||||
|
||||
@@ -52,11 +52,11 @@ void acceptLoop(kj::TaskSet & tasks, capnp::Capability::Client client, kj::Own<k
|
||||
})));
|
||||
}
|
||||
|
||||
kj::Promise<PyObject *> connectServer(kj::TaskSet & tasks, capnp::Capability::Client client, kj::AsyncIoContext * context, kj::StringPtr bindAddress, capnp::ReaderOptions & opts) {
|
||||
kj::Promise<kj::Own<PyRefCounter>> connectServer(kj::TaskSet & tasks, capnp::Capability::Client client, kj::AsyncIoProvider * provider, kj::StringPtr bindAddress, capnp::ReaderOptions & opts) {
|
||||
auto paf = kj::newPromiseAndFulfiller<unsigned int>();
|
||||
auto portPromise = paf.promise.fork();
|
||||
|
||||
tasks.add(context->provider->getNetwork().parseAddress(bindAddress)
|
||||
tasks.add(provider->getNetwork().parseAddress(bindAddress)
|
||||
.then(kj::mvCapture(paf.fulfiller,
|
||||
[&, client, opts](kj::Own<kj::PromiseFulfiller<unsigned int>>&& portFulfiller,
|
||||
kj::Own<kj::NetworkAddress>&& addr) mutable {
|
||||
@@ -65,5 +65,6 @@ kj::Promise<PyObject *> connectServer(kj::TaskSet & tasks, capnp::Capability::Cl
|
||||
acceptLoop(tasks, client, kj::mv(listener), opts);
|
||||
})));
|
||||
|
||||
return portPromise.addBranch().then([&](unsigned int port) { return PyLong_FromUnsignedLong(port); });
|
||||
return portPromise.addBranch().then([&](unsigned int port) {
|
||||
return stealPyRef(PyLong_FromUnsignedLong(port)); });
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user