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OS

Introduction

import 'os';

The os module reports the current platform, processor architecture, and logical processors.

import 'os';
 
print(os.getPlatform());        // linux, darwin, win32, ...
print(os.getArch());            // x64, arm, ...
print(os.getCpus().length);     // number of logical processors

Notes

os.getCpus() returns os.Cpu records:

FieldTypeDescription
modelString?Processor model, or null when unavailable.
speedint?Clock speed in MHz, or null when unavailable.

No function in this module is fallible. Information that the system does not provide is returned as "unknown" or null.

os.getArch()

String os.getArch()

Returns the processor architecture: "arm" for 64-bit ARM, "arm32", "x64", "x86", or "unknown".

import 'os';
 
if (os.getArch() == "arm") {
    print("running on 64-bit ARM");
}

os.getCpus()

os.Cpu[] os.getCpus()

Returns one os.Cpu entry per logical processor.

import 'os';
 
os.Cpu[] cpus = os.getCpus();
print(cpus.length, "logical processors");
 
forEach(cpus, cpu) {
    if (cpu.model != null) {
        print(cpu.model);
    }
}

os.getPlatform()

String os.getPlatform()

Returns "darwin", "win32", "linux", "openbsd", "freebsd", or "unknown".

import 'os';
 
if (os.getPlatform() == "win32") {
    print("Windows");
}
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