__dpmi_lock_linear_region

Syntax

#include <dpmi.h> int __dpmi_lock_linear_region(__dpmi_meminfo *_info);

Description

Please refer to the DPMI Specification (see section DPMI Specification) for details on DPMI function call operation. Also see the DPMI Overview (see section DPMI Overview) for general information.

DPMI function AX = 0x0600

This function locks virtual memory, to prevent page faults during hardware interrupts. Pass address and size (in bytes).

Return Value

-1 on error, else zero.

Portability

ANSI/ISO C	No
POSIX	No