SCO OpenServer

startio(D3oddi)

startio -- run start(D2oddi) routine from another processor

Syntax

#include <sys/ci/cidriver.h>

int startio(int xxhandle, int arg);

Description

The startio function interrupts a processor that can access the I/O bus and instructs it to run the start(D2oddi) routine pointed to by xxhandle. startio( ) should be preceded by a call to can_doio(D3oddi) to determine whether the current processor can access the I/O bus.

Arguments

xxhandle: Indicates a slot in an interrupt handler table, and is returned by a previous call to intralloc(D3oddi).
arg: Any argument that may be passed to the start(D2oddi) routine. If more than one argument is required, pass a pointer to a structure in arg.

Return values

None

Usage

Context and synchronization

Non-blockable context.

The startio routine must never be run from a critical code section that is enclosed within calls to lockb(D3oddi) and unlockb(D3oddi).

Hardware applicability

All

Version applicability

oddi: 2mp, 3mp, 4mp, 5mp, 6mp

Differences between versions

This function is not supported in DDI.

References

can_doio(D3oddi), intralloc(D3oddi), lockb(D3oddi), start(D2oddi), unlockb(D3oddi)

Examples

Refer to can_doio(D3oddi) for an example of how to use startio.