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@cython.no_gc_clear
cdef class UVAsync(UVHandle):
cdef _init(self, Loop loop, method_t callback, object ctx):
cdef int err
self._start_init(loop)
self._handle = <uv.uv_handle_t*>PyMem_RawMalloc(sizeof(uv.uv_async_t))
if self._handle is NULL:
self._abort_init()
raise MemoryError()
err = uv.uv_async_init(self._loop.uvloop,
<uv.uv_async_t*>self._handle,
__uvasync_callback)
if err < 0:
self._abort_init()
raise convert_error(err)
self._finish_init()
self.callback = callback
self.ctx = ctx
cdef send(self):
cdef int err
self._ensure_alive()
err = uv.uv_async_send(<uv.uv_async_t*>self._handle)
if err < 0:
exc = convert_error(err)
self._fatal_error(exc, True)
return
@staticmethod
cdef UVAsync new(Loop loop, method_t callback, object ctx):
cdef UVAsync handle
handle = UVAsync.__new__(UVAsync)
handle._init(loop, callback, ctx)
return handle
cdef void __uvasync_callback(
uv.uv_async_t* handle,
) noexcept with gil:
if __ensure_handle_data(<uv.uv_handle_t*>handle, "UVAsync callback") == 0:
return
cdef:
UVAsync async_ = <UVAsync> handle.data
method_t cb = async_.callback
try:
cb(async_.ctx)
except BaseException as ex:
async_._error(ex, False)
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