class UNIXSocket
Overview
A local interprocess communication clientsocket.
Only available on UNIX and UNIX-like operating systems.
Example usage:
require "socket"
sock = UNIXSocket.new("/tmp/myapp.sock")
sock.puts "message"
response = sock.gets
sock.close
Direct Known Subclasses
Defined in:
socket/unix_socket.crConstructors
-
.new(path : String, type : Type = Type::STREAM)
Connects a named UNIX socket, bound to a filesystem pathname.
- .new(family : Family, type : Type)
- .new(fd : Int32, type : Type, path : String? = nil)
Class Method Summary
-
.open(path, type : Type = Type::STREAM, &block)
Opens an UNIX socket to a filesystem pathname, yields it to the block, then eventually closes the socket when the block returns.
-
.pair(type : Type = Type::STREAM)
Returns a pair of unamed UNIX sockets.
-
.pair(type : Type = Type::STREAM, &block)
Creates a pair of unamed UNIX sockets (see
.pair
) and yields them to the block.
Instance Method Summary
Instance methods inherited from class Socket
accept
accept,
accept?
accept?,
bind(addr, &block)bind(host : String, port : Int)
bind(port : Int)
bind(addr) bind, blocking blocking, blocking=(value) blocking=, broadcast=(val : Bool) broadcast=, broadcast? broadcast?, close_on_exec=(arg : Bool) close_on_exec=, close_on_exec? close_on_exec?, close_read close_read, close_write close_write, closed? : Bool closed?, connect(addr, timeout = nil, &block)
connect(addr, timeout = nil) : Nil
connect(host : String, port : Int, connect_timeout = nil) connect, family : Family family, fcntl(cmd, arg = 0) fcntl, fd : Int32 fd, finalize finalize, getsockopt(optname, optval, level = LibC::SOL_SOCKET) getsockopt, inspect(io) inspect, keepalive=(val : Bool) keepalive=, keepalive? keepalive?, linger linger, linger=(val : Int?) linger=, listen(backlog = SOMAXCONN)
listen(backlog = SOMAXCONN, &block) listen, protocol : Protocol protocol, receive(max_message_size = 512) : Tuple(String, Address)
receive(message : Bytes) : Tuple(Int32, Address) receive, recv_buffer_size recv_buffer_size, recv_buffer_size=(val : Int32) recv_buffer_size=, reuse_address=(val : Bool) reuse_address=, reuse_address? reuse_address?, reuse_port=(val : Bool) reuse_port=, reuse_port? reuse_port?, send(message, to addr : Address)
send(message) send, send_buffer_size send_buffer_size, send_buffer_size=(val : Int32) send_buffer_size=, setsockopt(optname, optval, level = LibC::SOL_SOCKET) setsockopt, tty? tty?, type : Type type
Constructor methods inherited from class Socket
new(fd : Int32, family, type, protocol = Protocol::IP, blocking = false)new(family, type, protocol = Protocol::IP, blocking = false) new
Class methods inherited from class Socket
fcntl(fd, cmd, arg = 0)
fcntl,
ip?(string : String)
ip?,
tcp(family : Family, blocking = false)
tcp,
udp(family : Family, blocking = false)
udp,
unix(type : Type = Type::STREAM, blocking = false)
unix
Instance methods inherited from module IO::Syscall
read_syscall_helper(slice : Bytes, errno_msg : String, &block) : Int32
read_syscall_helper,
read_timeout : Time::Span?
read_timeout,
read_timeout=(read_timeout : Number) : Numberread_timeout=(timeout : Time::Span?) : Time::Span? read_timeout=, write_syscall_helper(slice : Bytes, errno_msg : String, &block) : Nil write_syscall_helper, write_timeout : Time::Span? write_timeout, write_timeout=(write_timeout : Number) : Number
write_timeout=(timeout : Time::Span?) : Time::Span? write_timeout=
Instance methods inherited from module IO::Buffered
close : Nil
close,
flush
flush,
flush_on_newline=(flush_on_newline)
flush_on_newline=,
flush_on_newline?
flush_on_newline?,
peek : Bytes?
peek,
read(slice : Bytes)
read,
rewind
rewind,
sync=(sync)
sync=,
sync?
sync?,
unbuffered_close
unbuffered_close,
unbuffered_flush
unbuffered_flush,
unbuffered_read(slice : Bytes)
unbuffered_read,
unbuffered_rewind
unbuffered_rewind,
unbuffered_write(slice : Bytes)
unbuffered_write,
write(slice : Bytes)
write
Instance methods inherited from class IO
<<(obj) : self
<<,
close
close,
closed?
closed?,
each_byte(&block) : Nileach_byte each_byte, each_char(&block) : Nil
each_char each_char, each_line(*args, **options, &block) : Nil
each_line(*args, **options) each_line, encoding : String encoding, flush flush, gets(delimiter : Char, limit : Int, chomp = false) : String?
gets(delimiter : Char, chomp = false) : String?
gets(chomp = true) : String?
gets(limit : Int, chomp = false) : String?
gets(delimiter : String, chomp = false) : String? gets, gets_to_end : String gets_to_end, peek : Bytes? peek, pos pos, pos=(value) pos=, print(*objects : _) : Nil
print(obj) : Nil print, printf(format_string, *args) : Nil
printf(format_string, args : Array | Tuple) : Nil printf, puts(*objects : _) : Nil
puts : Nil
puts(obj) : Nil
puts(string : String) : Nil puts, read(slice : Bytes) read, read_at(offset, bytesize, &block) read_at, read_byte : UInt8? read_byte, read_bytes(type, format : IO::ByteFormat = IO::ByteFormat::SystemEndian) read_bytes, read_char : Char? read_char, read_fully(slice : Bytes) read_fully, read_fully?(slice : Bytes) read_fully?, read_line(*args, **options) : String read_line, read_string(bytesize : Int) : String read_string, read_utf8(slice : Bytes) read_utf8, read_utf8_byte read_utf8_byte, rewind rewind, seek(offset, whence : Seek = Seek::Set) seek, set_encoding(encoding : String, invalid : Symbol? = nil) set_encoding, skip(bytes_count : Int) : Nil skip, skip_to_end : Nil skip_to_end, tell tell, tty? : Bool tty?, write(slice : Bytes) : Nil write, write_byte(byte : UInt8) write_byte, write_bytes(object, format : IO::ByteFormat = IO::ByteFormat::SystemEndian) write_bytes, write_utf8(slice : Bytes) write_utf8
Class methods inherited from class IO
copy(src, dst, limit : Int)copy(src, dst) copy, pipe(read_blocking = false, write_blocking = false) : Tuple(IO::FileDescriptor, IO::FileDescriptor)
pipe(read_blocking = false, write_blocking = false, &block) pipe
Instance methods inherited from class Reference
==(other : self)==(other : JSON::Any)
==(other : YAML::Any)
==(other) ==, dup dup, hash(hasher) hash, inspect(io : IO) : Nil inspect, object_id : UInt64 object_id, pretty_print(pp) : Nil pretty_print, same?(other : Reference)
same?(other : Nil) same?, to_s(io : IO) : Nil to_s
Constructor methods inherited from class Reference
new
new
Instance methods inherited from class Object
!=(other)
!=,
!~(other)
!~,
==(other)
==,
===(other : JSON::Any)===(other : YAML::Any)
===(other) ===, =~(other) =~, class class, dup dup, hash(hasher)
hash hash, inspect(io : IO)
inspect inspect, itself itself, not_nil! not_nil!, pretty_inspect(width = 79, newline = "\n", indent = 0) : String pretty_inspect, pretty_print(pp : PrettyPrint) : Nil pretty_print, tap(&block) tap, to_json(io : IO)
to_json to_json, to_pretty_json(indent : String = " ")
to_pretty_json(io : IO, indent : String = " ") to_pretty_json, to_s
to_s(io : IO) to_s, to_yaml(io : IO)
to_yaml to_yaml, try(&block) try, unsafe_as(type : T.class) forall T unsafe_as
Constructor methods inherited from class Object
from_json(string_or_io, root : String) : selffrom_json(string_or_io) : self from_json, from_yaml(string_or_io : String | IO) : self from_yaml
Constructor Detail
Connects a named UNIX socket, bound to a filesystem pathname.
Class Method Detail
Opens an UNIX socket to a filesystem pathname, yields it to the block, then eventually closes the socket when the block returns.
Returns the value of the block.
Returns a pair of unamed UNIX sockets.
left, right = UNIXSocket.pair
spawn do
# echo server
message = right.gets
right.puts message
end
left.puts "message"
left.gets # => "message"
Creates a pair of unamed UNIX sockets (see .pair
) and yields them to the
block. Eventually closes both sockets when the block returns.
Returns the value of the block.