Resume the given task after an exception has been reported.
#include <zircon/syscalls.h> zx_status_t zx_task_resume_from_exception(zx_handle_t handle, zx_handle_t port, uint32_t options);
Note: exception ports are deprecated and will be removed soon. See exceptions for information on the replacement API.
zx_task_resume_from_exception() causes the requested task to resume after an
exception has been reported to the debug exception port. The port parameter
should identify the exception port to which the
exception being resumed from was delivered.
Note that if a thread has any open suspend tokens, it will remain suspended even when resumed from an exception.
There are two ways to resume from an exception, depending on whether
one wants the thread to resume where it left off, which in the case
of an architectural exception generally means retrying the offending
instruction, or give the next handler in the search order a chance
to handle the exception.
zx_task_bind_exception_port() for a description of exception processing.
To resume a thread where it left off, pass 0 for the options:
zx_status_t status = zx_task_resume_from_exception(thread, port, 0);
To pass the exception on to the next handler in the search order, pass ZX_RESUME_TRY_NEXT for the options.
zx_status_t status = zx_task_resume_from_exception(thread, port, ZX_RESUME_TRY_NEXT);
handle must be of type ZX_OBJ_TYPE_THREAD.
port must be of type ZX_OBJ_TYPE_PORT.
zx_task_resume_from_exception() returns ZX_OK on success.
In the event of failure, a negative error value is returned.
ZX_ERR_ACCESS_DENIED port is not the port from which the exception report was sent.
ZX_ERR_BAD_HANDLE Either handle or port is not a valid handle.
ZX_ERR_WRONG_TYPE Either handle is not a thread handle, or port is not a port handle.
ZX_ERR_BAD_STATE The task is not in a state where resuming is possible, for example, it is dead or there is not an exception to resume from.
ZX_ERR_INVALID_ARGS options is not valid.
Currently only thread handles are supported.
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