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interrupt_wait.md

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zx_interrupt_wait

SUMMARY

Wait for an interrupt.

DECLARATION

#include <zircon/syscalls.h>

zx_status_t zx_interrupt_wait(zx_handle_t handle, zx_time_t* out_timestamp);

DESCRIPTION

zx_interrupt_wait() is a blocking syscall that causes the caller to wait until an interrupt is triggered. It can only be used on interrupt objects that have not been bound to a port with zx_interrupt_bind()

It also, before the waiting begins, will acknowledge the interrupt object, as if zx_interrupt_ack() were called on it.

The wait may be aborted with zx_interrupt_destroy() or by closing the handle.

RIGHTS

handle must be of type ZX_OBJ_TYPE_INTERRUPT and have ZX_RIGHT_WAIT.

RETURN VALUE

zx_interrupt_wait() returns ZX_OK on success, and out_timestamp, if non-NULL, returns the timestamp of when the interrupt was triggered (relative to ZX_CLOCK_MONOTONIC)

ERRORS

ZX_ERR_BAD_HANDLE handle is an invalid handle.

ZX_ERR_WRONG_TYPE handle is not a handle to an interrupt object.

ZX_ERR_BAD_STATE the interrupt object is bound to a port.

ZX_ERR_ACCESS_DENIED handle lacks ZX_RIGHT_WAIT.

ZX_ERR_CANCELED handle was closed while waiting or zx_interrupt_destroy() was called on it.

ZX_ERR_INVALID_ARGS the out_timestamp parameter is an invalid pointer.

SEE ALSO