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Create an event.


#include <zircon/syscalls.h>

zx_status_t zx_event_create(uint32_t options, zx_handle_t* out);


zx_event_create() creates an event, which is an object that is signalable. That is, its ZX_USER_SIGNAL_n (where n is 0 through 7) signals can be manipulated using zx_object_signal().

The newly-created handle will have the basic rights plus ZX_RIGHT_SIGNAL.


Caller job policy must allow ZX_POL_NEW_EVENT.

Return value

zx_event_create() returns ZX_OK and a valid event handle (via out) on success. On failure, an error value is returned.


ZX_ERR_INVALID_ARGS out is an invalid pointer, or options is nonzero.

ZX_ERR_NO_MEMORY Failure due to lack of memory. There is no good way for userspace to handle this (unlikely) error. In a future build this error will no longer occur.

See also