Name

SPVM::Go - Goroutines of The Go Programming Language

Description

The Go class in SPVM has methods to create goroutines and manipulate channels.

Goroutines and channels are features of the Go programming language.

Usage

  use Go;
  
  Go->go(method : void () {
    
    my $ch = Go->make;
    
    Go->go([has ch : Go::Channel = $ch] method : void () {
      
      my $ch = $self->{ch};
      
      $ch->write(1);
    });
    
    my $ok = 0;
    
    my $value = (int)$ch->read(\$ok);
  });
  
  Go->gosched;

Class Methods

go

static method go : void ($task : Callback);

Creates a goroutine.

make

static method make : Go::Channel ($capacity : int = 0);

Creates a channel(Go::Channel) given the capacity of its buffer $capacity.

new_select

static method new_select : Go::Select ();

Creats a new Go::Select object.

gosched

static method gosched : void ();

Suspends the current goroutine.

The control is transferred to the scheduler.

Exceptions:

This method must be called from the main thread. Otherwise an exception is thrown.

gosched_io_read

static method gosched_io_read : void ($fd : int, $timeout : double = 0);

Suspends the current goroutine for IO reading given the file descriptor $fd and the value of the timeout $timeout.

The control is transferred to the scheduler.

Exceptions:

This method must be called from the main thread. Otherwise an exception is thrown.

$timeout must be greater than 0. Otherwise an exception is thrown.

$timeout must be less than or equal to Fn->INT_MAX. Otherwise an exception is thrown.

If IO timeout occurs, an exception is thrown set eval_error_id to the basic type ID of the Go::Error::IOTimeout class.

gosched_io_write

static method gosched_io_write : void ($fd : int, $timeout : double = 0);

Suspends the current goroutine for IO writing given the file descriptor $fd and the timeout $timeout.

The control is transferred to the scheduler.

Exceptions:

This method must be called from the main thread. Otherwise an exception is thrown.

$timeout must be greater than 0. Otherwise an exception is thrown.

$timeout must be less than or equal to Fn->INT_MAX. Otherwise an exception is thrown.

If IO timeout occurs, an exception is thrown set eval_error_id to the basic type ID of the Go::Error::IOTimeout class.

sleep

static method sleep : void ($seconds : double = 0);

Sleeps the seconds $seconds.

Exceptions:

This method must be called from the main thread. Otherwise an exception is thrown.

$seconds must be less than or equal to Fn->INT_MAX. Otherwise an exception is thrown.

Modules

Repository

SPVM::Go - Github

See Also

Author

Yuki Kimoto kimoto.yuki@gmail.com

Copyright & License

Copyright (c) 2023 Yuki Kimoto

MIT License