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// Copyright 2020 New Relic Corporation. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package sysinfo
/*
#include <unistd.h>
*/
import "C"
// PhysicalMemoryBytes returns the total amount of host memory.
func PhysicalMemoryBytes() (uint64, error) {
// The function we're calling on Solaris is
// long sysconf(int name);
var pages C.long
var pagesizeBytes C.long
var err error
pagesizeBytes, err = C.sysconf(C._SC_PAGE_SIZE)
if pagesizeBytes < 1 {
return 0, err
}
pages, err = C.sysconf(C._SC_PHYS_PAGES)
if pages < 1 {
return 0, err
}
return uint64(pages) * uint64(pagesizeBytes), nil
}
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