How to probe the total amount of physical memory on QNX

qnx-probe-physical-memory.c

#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <sys/syspage.h>

int
main(int argc, char *argv[])
{
	struct asinfo_entry *entries = SYSPAGE_ENTRY(asinfo);
	size_t count = SYSPAGE_ENTRY_SIZE(asinfo) / sizeof(struct asinfo_entry);
	char *strings = SYSPAGE_ENTRY(strings)->data;

	uint64_t total = 0;
	size_t i;
	for (i = 0; i < count; i++) {
		struct asinfo_entry *entry = &entries[i];
		if (strcmp(strings + entry->name, "ram") == 0) {
			total += entry->end - entry->start + 1;
		}
	}

	printf("Total: %llu\n", total);

	return 0;
}

Hi oleavr, does this prints the total amount of physical memory on QNX in KB or just Bytes? Please confirm

it is in bits. if you want to show in KB, you have to do printf("Total: %llu\n", total/(1024*8)).