Lib.rs

› Network programming › Deno
#deno #deno-core #deno-os

deno_os

OS specific APIs for Deno

by Bartek Iwańczuk, David Sherret, denobot and 96 contributors

18 breaking releases

new 0.19.0 Apr 18, 2025
0.17.0 Apr 11, 2025
0.14.0 Mar 28, 2025

#1042 in Network programming

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4,557 downloads per month
Used in 12 crates (2 directly)

MIT license

345KB
10K SLoC

Rust 9K SLoC // 0.0% comments TypeScript 1.5K SLoC // 0.0% comments JavaScript 192 SLoC // 0.1% comments

deno_os

This crate implements OS specific APIs for Deno

loadavg

Target family Syscall Description
Linux sysinfo -
Windows - Returns DEFAULT_LOADAVG. There is no concept of loadavg on Windows
macOS, BSD getloadavg https://www.freebsd.org/cgi/man.cgi?query=getloadavg

os_release

Target family Syscall Description
Linux /proc/sys/kernel/osrelease -
Windows RtlGetVersion dwMajorVersion . dwMinorVersion . dwBuildNumber
macOS sysctl([CTL_KERN, KERN_OSRELEASE]) -

hostname

Target family Syscall Description
Unix gethostname(sysconf(_SC_HOST_NAME_MAX)) -
Windows GetHostNameW -

mem_info

Target family Syscall Description
Linux sysinfo and /proc/meminfo -
Windows sysinfoapi::GlobalMemoryStatusEx -
macOS 
 sysctl([CTL_HW, HW_MEMSIZE]); 
 sysctl([CTL_VM, VM_SWAPUSAGE]); 
 host_statistics64(mach_host_self(), HOST_VM_INFO64)
-

cpu_usage

Target family Syscall Description
Linux getrusage -
Windows processthreadsapi::GetProcessTimes -
macOS getrusage -

Dependencies

~116MB
~2.5M SLoC