Module Core__.Std0

Core is an extension of Core_kernel with Unix APIs. The unmodified libraries can be found there.

In particular, Core has comprehensive implementation of times (see Time, Time_ns, Timing_wheel_float, and Schedule_v5), where some details are platform-specific (like timing wheels based on floats).

Some modules are mere extensions of those existing in Core_kernel, like Bigbuffer, Bigstring, Caml, Time, and Md5, where what's added is handlers for reading from or writing to Unix sockets and file descriptors, or support for floating-point numbers. Other modules are entirely new, like:

Command, a richly featured tool for creating command-line programs.
Daemon, for daemonizing processes.
Iobuf, which lets you use contiguous ranges of bytes for I/O purposes.
Lock_file, for managing OS-level locks.
Crc, for cyclic redundancy checks.
Linux_ext, providing a wrapper around Linux-specific system calls.
Mac_address, for managing MAC addresses.
Signal, for handling Unix signals like SIGHUP and SIGKILL.

A few modules in Core don't have any platform-specific functionality but haven't yet been ported to Core_kernel for technical reasons (like a dependency on Time, which until recently was only in Core):

Interval
Squeue
Uuid

module Bigbuffer = Core.Bigbuffer

module Bigstring = Core.Bigstring

module Bigstring_marshal = Core.Bigstring_marshal

module Caml = Core.Caml

module Command = Core.Command

module Condition = Core__.Core_condition

module Core_stable = Core__.Stable

module Crc = Core.Crc

module Daemon = Core.Daemon

module Date = Core__.Core_date

module Filename = Core__.Core_filename

module Interval = Core.Interval

module Interval_intf = Core.Interval_intf

module Iobuf = Core.Iobuf

module Iobuf_debug = Core.Iobuf_debug

module Iobuf_intf = Core.Iobuf_intf

module Linux_ext = Core.Linux_ext

module Lock_file = Core.Lock_file

module Mac_address = Core.Mac_address

module Md5 = Core.Md5

module Digest = Md5

module Mutex = Core__.Core_mutex

module Nano_mutex = Core.Nano_mutex

module Piecewise_linear = Core.Piecewise_linear

module Process_env = Core.Process_env

module Schedule_v4_deprecated = Core.Schedule_v4_deprecated

module Schedule_v5 = Core.Schedule_v5

module Signal = Core.Signal

module Squeue = Core.Squeue

module Sys = Core__.Core_sys

module Thread = Core__.Core_thread

module Time = Core__.Core_time_float

module Time_common = Core.Time_common

module Time_ns = Core__.Core_time_ns

module Time_stamp_counter = Core.Time_stamp_counter

module Timing_wheel_float = Core.Timing_wheel_float

module Unix = Core__.Core_unix

module User_and_group = Core.User_and_group

module Uuid = Core.Uuid

module Version_util = Core.Version_util

module Weak_hashtbl = Core.Weak_hashtbl

val sec : Core_kernel__.Import.float ‑> Time.Span.t

val (^/) : string ‑> string ‑> string