_go32_dpmi_get_free_memory_information

Syntax

#include <dpmi.h int _go32_dpmi_get_free_memory_information(_go32_dpmi_meminfo *info);

Description

This function fills in the following structure:

typedef struct { u_long available_memory; u_long available_pages; u_long available_lockable_pages; u_long linear_space; u_long unlocked_pages; u_long available_physical_pages; u_long total_physical_pages; u_long free_linear_space; u_long max_pages_in_paging_file; u_long reserved[3]; } _go32_dpmi_meminfo;

The only field that is guaranteed to have useful data is available_memory. Any unavailable field has -1 in it.

Return Value

Zero on success, nonzero on failure.

Portability

ANSI/ISO C	No
POSIX	No

Example

int phys_mem_left() { _go32_dpmi_meminfo info; _go32_dpmi_get_free_memory_information(&info); if (info.available_physical_pages != -1) return info.available_physical_pages * 4096; return info.available_memory; }