Python greenlet.greenlet() Examples

The following are 30 code examples of greenlet.greenlet(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module greenlet , or try the search function .
Example #1
Source File: reqctx.py    From data with GNU General Public License v3.0 6 votes vote down vote up 
def test_greenlet_context_copying(self):
        app = flask.Flask(__name__)
        greenlets = []

        @app.route('/')
        def index():
            reqctx = flask._request_ctx_stack.top.copy()
            def g():
                self.assert_false(flask.request)
                self.assert_false(flask.current_app)
                with reqctx:
                    self.assert_true(flask.request)
                    self.assert_equal(flask.current_app, app)
                    self.assert_equal(flask.request.path, '/')
                    self.assert_equal(flask.request.args['foo'], 'bar')
                self.assert_false(flask.request)
                return 42
            greenlets.append(greenlet(g))
            return 'Hello World!'

        rv = app.test_client().get('/?foo=bar')
        self.assert_equal(rv.data, b'Hello World!')

        result = greenlets[0].run()
        self.assert_equal(result, 42)
Example #2
Source File: futures.py    From scoop with GNU Lesser General Public License v3.0 6 votes vote down vote up 
def _startup(rootFuture, *args, **kargs):
    """Initializes the SCOOP environment.

    :param rootFuture: Any callable object (function or class object with *__call__*
        method); this object will be called once and allows the use of parallel
        calls inside this object.
    :param args: A tuple of positional arguments that will be passed to the
        callable object.
    :param kargs: A dictionary of additional keyword arguments that will be
        passed to the callable object.

    :returns: The result of the root Future.

    Be sure to launch your root Future using this method."""
    import greenlet
    global _controller
    _controller = greenlet.greenlet(control.runController)
    try:
        result = _controller.switch(rootFuture, *args, **kargs)
    except scoop._comm.Shutdown:
        result = None
        control.execQueue.shutdown()
    return result
Example #3
Source File: iterio.py    From Building-Recommendation-Systems-with-Python with MIT License 6 votes vote down vote up 
def __new__(cls, func, sentinel=""):
        if greenlet is None:
            raise RuntimeError("IterI requires greenlet support")
        stream = object.__new__(cls)
        stream._parent = greenlet.getcurrent()
        stream._buffer = []
        stream.closed = False
        stream.sentinel = sentinel
        stream.pos = 0

        def run():
            func(stream)
            stream.close()

        g = greenlet.greenlet(run, stream._parent)
        while 1:
            rv = g.switch()
            if not rv:
                return
            yield rv[0]
Example #4
Source File: iterio.py    From planespotter with MIT License 6 votes vote down vote up 
def __new__(cls, func, sentinel=''):
        if greenlet is None:
            raise RuntimeError('IterI requires greenlet support')
        stream = object.__new__(cls)
        stream._parent = greenlet.getcurrent()
        stream._buffer = []
        stream.closed = False
        stream.sentinel = sentinel
        stream.pos = 0

        def run():
            func(stream)
            stream.close()

        g = greenlet.greenlet(run, stream._parent)
        while 1:
            rv = g.switch()
            if not rv:
                return
            yield rv[0]
Example #5
Source File: test_concurrency.py    From coveragepy with Apache License 2.0 6 votes vote down vote up 
def test_greenlet(self):
        GREENLET = """\
            from greenlet import greenlet

            def test1(x, y):
                z = gr2.switch(x+y)
                print(z)

            def test2(u):
                print(u)
                gr1.switch(42)

            gr1 = greenlet(test1)
            gr2 = greenlet(test2)
            gr1.switch("hello", " world")
            """
        self.try_some_code(GREENLET, "greenlet", greenlet, "hello world\n42\n")
Example #6
Source File: iterio.py    From pyRevit with GNU General Public License v3.0 6 votes vote down vote up 
def __new__(cls, func, sentinel=''):
        if greenlet is None:
            raise RuntimeError('IterI requires greenlet support')
        stream = object.__new__(cls)
        stream._parent = greenlet.getcurrent()
        stream._buffer = []
        stream.closed = False
        stream.sentinel = sentinel
        stream.pos = 0

        def run():
            func(stream)
            stream.close()

        g = greenlet.greenlet(run, stream._parent)
        while 1:
            rv = g.switch()
            if not rv:
                return
            yield rv[0]
Example #7
Source File: eventlet_backdoor.py    From oslo.service with Apache License 2.0 6 votes vote down vote up 
def _capture_profile(fname=''):
    if not fname:
        yappi.set_clock_type('cpu')
        # We need to set context to greenlet to profile greenlets
        # https://bitbucket.org/sumerc/yappi/pull-requests/3
        yappi.set_context_id_callback(
            lambda: id(greenlet.getcurrent()))
        yappi.set_context_name_callback(
            lambda: greenlet.getcurrent().__class__.__name__)
        yappi.start()
    else:
        yappi.stop()
        stats = yappi.get_func_stats()
        # User should provide filename. This file with a suffix .prof
        # will be created in temp directory.
        try:
            stats_file = os.path.join(tempfile.gettempdir(), fname + '.prof')
            stats.save(stats_file, "pstat")
        except Exception as e:
            print("Error while saving the trace stats ", str(e))
        finally:
            yappi.clear_stats()
Example #8
Source File: util.py    From TorMySQL with MIT License 6 votes vote down vote up 
def async_call_method(fun, *args, **kwargs):
    future = platform.Future()
    ioloop = platform.current_ioloop()

    def finish():
        try:
            result = fun(*args, **kwargs)
            if future._callbacks:
                ioloop.call_soon(future.set_result, result)
            else:
                future.set_result(result)
        except Exception as e:
            if future._callbacks:
                ioloop.call_soon(future.set_exception, e)
            else:
                future.set_exception(e)

    child_gr = greenlet.greenlet(finish)
    child_gr.switch()

    return future
Example #9
Source File: iterio.py    From PhonePi_SampleServer with MIT License 6 votes vote down vote up 
def __new__(cls, func, sentinel=''):
        if greenlet is None:
            raise RuntimeError('IterI requires greenlet support')
        stream = object.__new__(cls)
        stream._parent = greenlet.getcurrent()
        stream._buffer = []
        stream.closed = False
        stream.sentinel = sentinel
        stream.pos = 0

        def run():
            func(stream)
            stream.close()

        g = greenlet.greenlet(run, stream._parent)
        while 1:
            rv = g.switch()
            if not rv:
                return
            yield rv[0]
Example #10
Source File: iterio.py    From cloud-playground with Apache License 2.0 6 votes vote down vote up 
def __new__(cls, func, sentinel=''):
        if greenlet is None:
            raise RuntimeError('IterI requires greenlet support')
        stream = object.__new__(cls)
        stream._parent = greenlet.getcurrent()
        stream._buffer = []
        stream.closed = False
        stream.sentinel = sentinel
        stream.pos = 0

        def run():
            func(stream)
            stream.close()

        g = greenlet.greenlet(run, stream._parent)
        while 1:
            rv = g.switch()
            if not rv:
                return
            yield rv[0]
Example #11
Source File: reqctx.py    From syntheticmass with Apache License 2.0 6 votes vote down vote up 
def test_greenlet_context_copying(self):
        app = flask.Flask(__name__)
        greenlets = []

        @app.route('/')
        def index():
            reqctx = flask._request_ctx_stack.top.copy()
            def g():
                self.assert_false(flask.request)
                self.assert_false(flask.current_app)
                with reqctx:
                    self.assert_true(flask.request)
                    self.assert_equal(flask.current_app, app)
                    self.assert_equal(flask.request.path, '/')
                    self.assert_equal(flask.request.args['foo'], 'bar')
                self.assert_false(flask.request)
                return 42
            greenlets.append(greenlet(g))
            return 'Hello World!'

        rv = app.test_client().get('/?foo=bar')
        self.assert_equal(rv.data, b'Hello World!')

        result = greenlets[0].run()
        self.assert_equal(result, 42)
Example #12
Source File: reqctx.py    From syntheticmass with Apache License 2.0 6 votes vote down vote up 
def test_greenlet_context_copying_api(self):
        app = flask.Flask(__name__)
        greenlets = []

        @app.route('/')
        def index():
            reqctx = flask._request_ctx_stack.top.copy()
            @flask.copy_current_request_context
            def g():
                self.assert_true(flask.request)
                self.assert_equal(flask.current_app, app)
                self.assert_equal(flask.request.path, '/')
                self.assert_equal(flask.request.args['foo'], 'bar')
                return 42
            greenlets.append(greenlet(g))
            return 'Hello World!'

        rv = app.test_client().get('/?foo=bar')
        self.assert_equal(rv.data, b'Hello World!')

        result = greenlets[0].run()
        self.assert_equal(result, 42)

    # Disable test if we don't have greenlets available
Example #13
Source File: iterio.py    From syntheticmass with Apache License 2.0 6 votes vote down vote up 
def __new__(cls, func, sentinel=''):
        if greenlet is None:
            raise RuntimeError('IterI requires greenlet support')
        stream = object.__new__(cls)
        stream._parent = greenlet.getcurrent()
        stream._buffer = []
        stream.closed = False
        stream.sentinel = sentinel
        stream.pos = 0

        def run():
            func(stream)
            stream.close()

        g = greenlet.greenlet(run, stream._parent)
        while 1:
            rv = g.switch()
            if not rv:
                return
            yield rv[0]
Example #14
Source File: iterio.py    From arithmancer with Apache License 2.0 6 votes vote down vote up 
def __new__(cls, func, sentinel=''):
        if greenlet is None:
            raise RuntimeError('IterI requires greenlet support')
        stream = object.__new__(cls)
        stream._parent = greenlet.getcurrent()
        stream._buffer = []
        stream.closed = False
        stream.sentinel = sentinel
        stream.pos = 0

        def run():
            func(stream)
            stream.close()

        g = greenlet.greenlet(run, stream._parent)
        while 1:
            rv = g.switch()
            if not rv:
                return
            yield rv[0]
Example #15
Source File: iterio.py    From appengine-try-python-flask with Apache License 2.0 6 votes vote down vote up 
def __new__(cls, func, sentinel=''):
        if greenlet is None:
            raise RuntimeError('IterI requires greenlet support')
        stream = object.__new__(cls)
        stream._parent = greenlet.getcurrent()
        stream._buffer = []
        stream.closed = False
        stream.sentinel = sentinel
        stream.pos = 0

        def run():
            func(stream)
            stream.close()

        g = greenlet.greenlet(run, stream._parent)
        while 1:
            rv = g.switch()
            if not rv:
                return
            yield rv[0]
Example #16
Source File: iterio.py    From jbox with MIT License 6 votes vote down vote up 
def __new__(cls, func, sentinel=''):
        if greenlet is None:
            raise RuntimeError('IterI requires greenlet support')
        stream = object.__new__(cls)
        stream._parent = greenlet.getcurrent()
        stream._buffer = []
        stream.closed = False
        stream.sentinel = sentinel
        stream.pos = 0

        def run():
            func(stream)
            stream.close()

        g = greenlet.greenlet(run, stream._parent)
        while 1:
            rv = g.switch()
            if not rv:
                return
            yield rv[0]
Example #17
Source File: reqctx.py    From data with GNU General Public License v3.0 6 votes vote down vote up 
def test_greenlet_context_copying_api(self):
        app = flask.Flask(__name__)
        greenlets = []

        @app.route('/')
        def index():
            reqctx = flask._request_ctx_stack.top.copy()
            @flask.copy_current_request_context
            def g():
                self.assert_true(flask.request)
                self.assert_equal(flask.current_app, app)
                self.assert_equal(flask.request.path, '/')
                self.assert_equal(flask.request.args['foo'], 'bar')
                return 42
            greenlets.append(greenlet(g))
            return 'Hello World!'

        rv = app.test_client().get('/?foo=bar')
        self.assert_equal(rv.data, b'Hello World!')

        result = greenlets[0].run()
        self.assert_equal(result, 42)

    # Disable test if we don't have greenlets available
Example #18
Source File: iterio.py    From data with GNU General Public License v3.0 6 votes vote down vote up 
def __new__(cls, func, sentinel=''):
        if greenlet is None:
            raise RuntimeError('IterI requires greenlet support')
        stream = object.__new__(cls)
        stream._parent = greenlet.getcurrent()
        stream._buffer = []
        stream.closed = False
        stream.sentinel = sentinel
        stream.pos = 0

        def run():
            func(stream)
            stream.close()

        g = greenlet.greenlet(run, stream._parent)
        while 1:
            rv = g.switch()
            if not rv:
                return
            yield rv[0]
Example #19
Source File: reqctx.py    From data with GNU General Public License v3.0 6 votes vote down vote up 
def test_greenlet_context_copying(self):
        app = flask.Flask(__name__)
        greenlets = []

        @app.route('/')
        def index():
            reqctx = flask._request_ctx_stack.top.copy()
            def g():
                self.assert_false(flask.request)
                self.assert_false(flask.current_app)
                with reqctx:
                    self.assert_true(flask.request)
                    self.assert_equal(flask.current_app, app)
                    self.assert_equal(flask.request.path, '/')
                    self.assert_equal(flask.request.args['foo'], 'bar')
                self.assert_false(flask.request)
                return 42
            greenlets.append(greenlet(g))
            return 'Hello World!'

        rv = app.test_client().get('/?foo=bar')
        self.assert_equal(rv.data, b'Hello World!')

        result = greenlets[0].run()
        self.assert_equal(result, 42)
Example #20
Source File: reqctx.py    From data with GNU General Public License v3.0 6 votes vote down vote up 
def test_greenlet_context_copying_api(self):
        app = flask.Flask(__name__)
        greenlets = []

        @app.route('/')
        def index():
            reqctx = flask._request_ctx_stack.top.copy()
            @flask.copy_current_request_context
            def g():
                self.assert_true(flask.request)
                self.assert_equal(flask.current_app, app)
                self.assert_equal(flask.request.path, '/')
                self.assert_equal(flask.request.args['foo'], 'bar')
                return 42
            greenlets.append(greenlet(g))
            return 'Hello World!'

        rv = app.test_client().get('/?foo=bar')
        self.assert_equal(rv.data, b'Hello World!')

        result = greenlets[0].run()
        self.assert_equal(result, 42)

    # Disable test if we don't have greenlets available
Example #21
Source File: reqctx.py    From data with GNU General Public License v3.0 6 votes vote down vote up 
def test_greenlet_context_copying(self):
        app = flask.Flask(__name__)
        greenlets = []

        @app.route('/')
        def index():
            reqctx = flask._request_ctx_stack.top.copy()
            def g():
                self.assert_false(flask.request)
                self.assert_false(flask.current_app)
                with reqctx:
                    self.assert_true(flask.request)
                    self.assert_equal(flask.current_app, app)
                    self.assert_equal(flask.request.path, '/')
                    self.assert_equal(flask.request.args['foo'], 'bar')
                self.assert_false(flask.request)
                return 42
            greenlets.append(greenlet(g))
            return 'Hello World!'

        rv = app.test_client().get('/?foo=bar')
        self.assert_equal(rv.data, b'Hello World!')

        result = greenlets[0].run()
        self.assert_equal(result, 42)
Example #22
Source File: reqctx.py    From data with GNU General Public License v3.0 6 votes vote down vote up 
def test_greenlet_context_copying_api(self):
        app = flask.Flask(__name__)
        greenlets = []

        @app.route('/')
        def index():
            reqctx = flask._request_ctx_stack.top.copy()
            @flask.copy_current_request_context
            def g():
                self.assert_true(flask.request)
                self.assert_equal(flask.current_app, app)
                self.assert_equal(flask.request.path, '/')
                self.assert_equal(flask.request.args['foo'], 'bar')
                return 42
            greenlets.append(greenlet(g))
            return 'Hello World!'

        rv = app.test_client().get('/?foo=bar')
        self.assert_equal(rv.data, b'Hello World!')

        result = greenlets[0].run()
        self.assert_equal(result, 42)

    # Disable test if we don't have greenlets available
Example #23
Source File: iterio.py    From data with GNU General Public License v3.0 6 votes vote down vote up 
def __new__(cls, func, sentinel=''):
        if greenlet is None:
            raise RuntimeError('IterI requires greenlet support')
        stream = object.__new__(cls)
        stream._parent = greenlet.getcurrent()
        stream._buffer = []
        stream.closed = False
        stream.sentinel = sentinel
        stream.pos = 0

        def run():
            func(stream)
            stream.close()

        g = greenlet.greenlet(run, stream._parent)
        while 1:
            rv = g.switch()
            if not rv:
                return
            yield rv[0]
Example #24
Source File: reqctx.py    From data with GNU General Public License v3.0 6 votes vote down vote up 
def test_greenlet_context_copying(self):
        app = flask.Flask(__name__)
        greenlets = []

        @app.route('/')
        def index():
            reqctx = flask._request_ctx_stack.top.copy()
            def g():
                self.assert_false(flask.request)
                self.assert_false(flask.current_app)
                with reqctx:
                    self.assert_true(flask.request)
                    self.assert_equal(flask.current_app, app)
                    self.assert_equal(flask.request.path, '/')
                    self.assert_equal(flask.request.args['foo'], 'bar')
                self.assert_false(flask.request)
                return 42
            greenlets.append(greenlet(g))
            return 'Hello World!'

        rv = app.test_client().get('/?foo=bar')
        self.assert_equal(rv.data, b'Hello World!')

        result = greenlets[0].run()
        self.assert_equal(result, 42)
Example #25
Source File: reqctx.py    From data with GNU General Public License v3.0 6 votes vote down vote up 
def test_greenlet_context_copying_api(self):
        app = flask.Flask(__name__)
        greenlets = []

        @app.route('/')
        def index():
            reqctx = flask._request_ctx_stack.top.copy()
            @flask.copy_current_request_context
            def g():
                self.assert_true(flask.request)
                self.assert_equal(flask.current_app, app)
                self.assert_equal(flask.request.path, '/')
                self.assert_equal(flask.request.args['foo'], 'bar')
                return 42
            greenlets.append(greenlet(g))
            return 'Hello World!'

        rv = app.test_client().get('/?foo=bar')
        self.assert_equal(rv.data, b'Hello World!')

        result = greenlets[0].run()
        self.assert_equal(result, 42)

    # Disable test if we don't have greenlets available
Example #26
Source File: reqctx.py    From data with GNU General Public License v3.0 6 votes vote down vote up 
def test_greenlet_context_copying(self):
        app = flask.Flask(__name__)
        greenlets = []

        @app.route('/')
        def index():
            reqctx = flask._request_ctx_stack.top.copy()
            def g():
                self.assert_false(flask.request)
                self.assert_false(flask.current_app)
                with reqctx:
                    self.assert_true(flask.request)
                    self.assert_equal(flask.current_app, app)
                    self.assert_equal(flask.request.path, '/')
                    self.assert_equal(flask.request.args['foo'], 'bar')
                self.assert_false(flask.request)
                return 42
            greenlets.append(greenlet(g))
            return 'Hello World!'

        rv = app.test_client().get('/?foo=bar')
        self.assert_equal(rv.data, b'Hello World!')

        result = greenlets[0].run()
        self.assert_equal(result, 42)
Example #27
Source File: reqctx.py    From data with GNU General Public License v3.0 6 votes vote down vote up 
def test_greenlet_context_copying_api(self):
        app = flask.Flask(__name__)
        greenlets = []

        @app.route('/')
        def index():
            reqctx = flask._request_ctx_stack.top.copy()
            @flask.copy_current_request_context
            def g():
                self.assert_true(flask.request)
                self.assert_equal(flask.current_app, app)
                self.assert_equal(flask.request.path, '/')
                self.assert_equal(flask.request.args['foo'], 'bar')
                return 42
            greenlets.append(greenlet(g))
            return 'Hello World!'

        rv = app.test_client().get('/?foo=bar')
        self.assert_equal(rv.data, b'Hello World!')

        result = greenlets[0].run()
        self.assert_equal(result, 42)

    # Disable test if we don't have greenlets available
Example #28
Source File: iterio.py    From data with GNU General Public License v3.0 6 votes vote down vote up 
def __new__(cls, func, sentinel=''):
        if greenlet is None:
            raise RuntimeError('IterI requires greenlet support')
        stream = object.__new__(cls)
        stream._parent = greenlet.getcurrent()
        stream._buffer = []
        stream.closed = False
        stream.sentinel = sentinel
        stream.pos = 0

        def run():
            func(stream)
            stream.close()

        g = greenlet.greenlet(run, stream._parent)
        while 1:
            rv = g.switch()
            if not rv:
                return
            yield rv[0]
Example #29
Source File: session.py    From pynvim with Apache License 2.0 6 votes vote down vote up 
def _on_request(self, name, args, response):
        def handler():
            try:
                rv = self._request_cb(name, args)
                debug('greenlet %s finished executing, '
                      + 'sending %s as response', gr, rv)
                response.send(rv)
            except ErrorResponse as err:
                warn("error response from request '%s %s': %s", name,
                     args, format_exc())
                response.send(err.args[0], error=True)
            except Exception as err:
                warn("error caught while processing request '%s %s': %s", name,
                     args, format_exc())
                response.send(repr(err) + "\n" + format_exc(5), error=True)
            debug('greenlet %s is now dying...', gr)

        # Create a new greenlet to handle the request
        gr = greenlet.greenlet(handler)
        debug('received rpc request, greenlet %s will handle it', gr)
        gr.switch()
Example #30
Source File: iterio.py    From android_universal with MIT License 6 votes vote down vote up 
def __new__(cls, func, sentinel=''):
        if greenlet is None:
            raise RuntimeError('IterI requires greenlet support')
        stream = object.__new__(cls)
        stream._parent = greenlet.getcurrent()
        stream._buffer = []
        stream.closed = False
        stream.sentinel = sentinel
        stream.pos = 0

        def run():
            func(stream)
            stream.close()

        g = greenlet.greenlet(run, stream._parent)
        while 1:
            rv = g.switch()
            if not rv:
                return
            yield rv[0]