/ 
SPVM-Sys-0.11
River stage two • 10 direct dependents • 15 total dependents
/ SPVM::Sys

Name

SPVM::Sys - System Calls such as File IO, User, Process, Socket,

Caution

The Sys module and the system modules will be highly changed without warnings.

SPVM itself is yet experimental release.

Description

Sys is the class for system calls such as file IO, user manipulation, process, socket, time,

System Modules

Class Methods

getenv

static method getenv : string ($name : string);

The getenv() function searches the environment list to find the environment variable name, and returns a pointer to the corresponding value string.

See the detail of the getenv function in the case of Linux.

setenv

static method setenv : int ($name : string, $value : string, $overwrite : int);

The setenv() function adds the variable name to the environment with the value value, if name does not already exist. If name does exist in the environment, then its value is changed to value if overwrite is nonzero; if overwrite is zero, then the value of name is not changed. This function makes copies of the strings pointed to by name and value (by contrast with putenv(3)).

See the detail of the setenv function in the case of Linux.

unsetenv

static method unsetenv : int ($name : string);

The unsetenv() function deletes the variable name from the environment. If name does not exist in the environment, then the function succeeds, and the environment is unchanged.

See the detail of the unsetenv function in the case of Linux.

defined

static method defined : int ($macro_name : string, $value = undef : object of Int|Long|Double);

Checks if the macro in C langauge is defined. If the macro is defined, returns 1. Otherwise returns 0.

If $value is specifed and $macro_name is defined, the macro value converted to the given type is set to $value.

Supports the following macro names.

  • __GNUC__

  • __clang__

  • __BORLANDC__

  • __INTEL_COMPILER

  • __unix

  • __unix__

  • __linux

  • __linux__

  • __FreeBSD__

  • __NetBSD__

  • __OpenBSD__

  • _WIN32

  • WIN32

  • _WIN64

  • _WINDOWS

  • _CONSOLE

  • WINVER

  • _WIN32_WINDOWS

  • _WIN32_WINNT

  • WINCEOSVER

  • __CYGWIN__

  • __CYGWIN32__

  • __MINGW32__

  • __MINGW64__

  • __APPLE__

  • __MACH__

  • __solaris

get_osname

static method get_osname : string ()

Gets the OS name(Perl's $^O ). The list of the OS names are described at PLATFORMS - perlport.

The get_osname in the Sys class supports the following os names.

  • linux

  • freebsd

  • openbsd

  • solaris

  • MSWin32

  • darwin

Author

Yuki Kimoto(https://github.com/yuki-kimoto)

Contributors

Gabor Szabo(https://github.com/szabgab)

Repository

SPVM::Sys - Github

Copyright & License

Copyright Yuki Kimoto 2022-2022, all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.