Class: Event::Selector::EPoll
- Inherits:
-
Object
- Object
- Event::Selector::EPoll
- Defined in:
- ext/event/selector/epoll.c
Instance Method Summary collapse
- #close ⇒ Object
- #initialize(loop) ⇒ Object constructor
- #io_read(fiber, io, buffer, _length) ⇒ Object
- #io_wait(fiber, io, events) ⇒ Object
- #io_write(fiber, io, buffer, _length) ⇒ Object
- #process_wait(fiber, pid, flags) ⇒ Object
- #push(fiber) ⇒ Object
- #raise(*args) ⇒ Object
- #ready? ⇒ Boolean
- #select(duration) ⇒ Object
- #transfer(*args) ⇒ Object
- #yield ⇒ Object
Constructor Details
#initialize(loop) ⇒ Object
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# File 'ext/event/selector/epoll.c', line 88 VALUE Event_Selector_EPoll_initialize(VALUE self, VALUE loop) { struct Event_Selector_EPoll *data = NULL; TypedData_Get_Struct(self, struct Event_Selector_EPoll, &Event_Selector_EPoll_Type, data); Event_Selector_initialize(&data->backend, loop); int result = epoll_create1(EPOLL_CLOEXEC); if (result == -1) { rb_sys_fail("epoll_create"); } else { data->descriptor = result; rb_update_max_fd(data->descriptor); } return self; } |
Instance Method Details
#close ⇒ Object
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# File 'ext/event/selector/epoll.c', line 106 VALUE Event_Selector_EPoll_close(VALUE self) { struct Event_Selector_EPoll *data = NULL; TypedData_Get_Struct(self, struct Event_Selector_EPoll, &Event_Selector_EPoll_Type, data); close_internal(data); return Qnil; } |
#io_read(fiber, io, buffer, _length) ⇒ Object
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# File 'ext/event/selector/epoll.c', line 365 VALUE Event_Selector_EPoll_io_read(VALUE self, VALUE fiber, VALUE io, VALUE buffer, VALUE _length) { int descriptor = Event_Selector_io_descriptor(io); size_t length = NUM2SIZET(_length); struct io_read_arguments io_read_arguments = { .self = self, .fiber = fiber, .io = io, .flags = Event_Selector_nonblock_set(descriptor), .descriptor = descriptor, .buffer = buffer, .length = length, }; return rb_ensure(io_read_loop, (VALUE)&io_read_arguments, io_read_ensure, (VALUE)&io_read_arguments); } |
#io_wait(fiber, io, events) ⇒ Object
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# File 'ext/event/selector/epoll.c', line 269 VALUE Event_Selector_EPoll_io_wait(VALUE self, VALUE fiber, VALUE io, VALUE events) { struct Event_Selector_EPoll *data = NULL; TypedData_Get_Struct(self, struct Event_Selector_EPoll, &Event_Selector_EPoll_Type, data); struct epoll_event event = {0}; int descriptor = Event_Selector_io_descriptor(io); int duplicate = -1; event.events = epoll_flags_from_events(NUM2INT(events)); event.data.ptr = (void*)fiber; // fprintf(stderr, "<- fiber=%p descriptor=%d\n", (void*)fiber, descriptor); // A better approach is to batch all changes: int result = epoll_ctl(data->descriptor, EPOLL_CTL_ADD, descriptor, &event); if (result == -1 && errno == EEXIST) { // The file descriptor was already inserted into epoll. duplicate = descriptor = dup(descriptor); rb_update_max_fd(duplicate); if (descriptor == -1) rb_sys_fail("dup"); result = epoll_ctl(data->descriptor, EPOLL_CTL_ADD, descriptor, &event); } if (result == -1) { rb_sys_fail("epoll_ctl"); } struct io_wait_arguments io_wait_arguments = { .data = data, .descriptor = descriptor, .duplicate = duplicate }; return rb_ensure(io_wait_transfer, (VALUE)&io_wait_arguments, io_wait_ensure, (VALUE)&io_wait_arguments); } |
#io_write(fiber, io, buffer, _length) ⇒ Object
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# File 'ext/event/selector/epoll.c', line 437 VALUE Event_Selector_EPoll_io_write(VALUE self, VALUE fiber, VALUE io, VALUE buffer, VALUE _length) { int descriptor = Event_Selector_io_descriptor(io); size_t length = NUM2SIZET(_length); struct io_write_arguments io_write_arguments = { .self = self, .fiber = fiber, .io = io, .flags = Event_Selector_nonblock_set(descriptor), .descriptor = descriptor, .buffer = buffer, .length = length, }; return rb_ensure(io_write_loop, (VALUE)&io_write_arguments, io_write_ensure, (VALUE)&io_write_arguments); } |
#process_wait(fiber, pid, flags) ⇒ Object
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# File 'ext/event/selector/epoll.c', line 187 VALUE Event_Selector_EPoll_process_wait(VALUE self, VALUE fiber, VALUE pid, VALUE flags) { struct Event_Selector_EPoll *data = NULL; TypedData_Get_Struct(self, struct Event_Selector_EPoll, &Event_Selector_EPoll_Type, data); struct process_wait_arguments process_wait_arguments = { .data = data, .pid = NUM2PIDT(pid), .flags = NUM2INT(flags), }; process_wait_arguments.descriptor = pidfd_open(process_wait_arguments.pid, 0); rb_update_max_fd(process_wait_arguments.descriptor); struct epoll_event event = { .events = EPOLLIN|EPOLLRDHUP|EPOLLONESHOT, .data = {.ptr = (void*)fiber}, }; int result = epoll_ctl(data->descriptor, EPOLL_CTL_ADD, process_wait_arguments.descriptor, &event); if (result == -1) { rb_sys_fail("epoll_ctl(process_wait)"); } return rb_ensure(process_wait_transfer, (VALUE)&process_wait_arguments, process_wait_ensure, (VALUE)&process_wait_arguments); } |
#push(fiber) ⇒ Object
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# File 'ext/event/selector/epoll.c', line 135 VALUE Event_Selector_EPoll_push(VALUE self, VALUE fiber) { struct Event_Selector_EPoll *data = NULL; TypedData_Get_Struct(self, struct Event_Selector_EPoll, &Event_Selector_EPoll_Type, data); Event_Selector_queue_push(&data->backend, fiber); return Qnil; } |
#raise(*args) ⇒ Object
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# File 'ext/event/selector/epoll.c', line 145 VALUE Event_Selector_EPoll_raise(int argc, VALUE *argv, VALUE self) { struct Event_Selector_EPoll *data = NULL; TypedData_Get_Struct(self, struct Event_Selector_EPoll, &Event_Selector_EPoll_Type, data); return Event_Selector_wait_and_raise(&data->backend, argc, argv); } |
#ready? ⇒ Boolean
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# File 'ext/event/selector/epoll.c', line 153 VALUE Event_Selector_EPoll_ready_p(VALUE self) { struct Event_Selector_EPoll *data = NULL; TypedData_Get_Struct(self, struct Event_Selector_EPoll, &Event_Selector_EPoll_Type, data); return data->backend.ready ? Qtrue : Qfalse; } |
#select(duration) ⇒ Object
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# File 'ext/event/selector/epoll.c', line 513 VALUE Event_Selector_EPoll_select(VALUE self, VALUE duration) { struct Event_Selector_EPoll *data = NULL; TypedData_Get_Struct(self, struct Event_Selector_EPoll, &Event_Selector_EPoll_Type, data); int ready = Event_Selector_queue_flush(&data->backend); struct select_arguments arguments = { .data = data, .timeout = 0 }; select_internal_with_gvl(&arguments); // If the ready list was empty and no events were processed: if (!ready && arguments.count == 0) { arguments.timeout = make_timeout(duration); if (arguments.timeout != 0) { select_internal_without_gvl(&arguments); } } for (int i = 0; i < arguments.count; i += 1) { VALUE fiber = (VALUE)arguments.events[i].data.ptr; VALUE result = INT2NUM(arguments.events[i].events); // fprintf(stderr, "-> fiber=%p descriptor=%d\n", (void*)fiber, events[i].data.fd); Event_Selector_fiber_transfer(fiber, 1, &result); } return INT2NUM(arguments.count); } |
#transfer(*args) ⇒ Object
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# File 'ext/event/selector/epoll.c', line 115 VALUE Event_Selector_EPoll_transfer(int argc, VALUE *argv, VALUE self) { struct Event_Selector_EPoll *data = NULL; TypedData_Get_Struct(self, struct Event_Selector_EPoll, &Event_Selector_EPoll_Type, data); Event_Selector_wait_and_transfer(&data->backend, argc, argv); return Qnil; } |
#yield ⇒ Object
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# File 'ext/event/selector/epoll.c', line 125 VALUE Event_Selector_EPoll_yield(VALUE self) { struct Event_Selector_EPoll *data = NULL; TypedData_Get_Struct(self, struct Event_Selector_EPoll, &Event_Selector_EPoll_Type, data); Event_Selector_yield(&data->backend); return Qnil; } |