net_adm模块¶

localhost/0

localhost() -> Name
类型:
Name = string()
返回local host的name.
返回本地主机的名称。 如果使用命令行标志-name启动Erlang，则Name是完全限定名称
Returns the name of the local host. If Erlang was started with command-line flag -name, Name is the fully qualified name.

name/0/1

names() -> {ok, [{Name, Port}]} | {error, Reason}
names(Host) -> {ok, [{Name, Port}]} | {error, Reason}
类型:
Host = atom() | string() | inet:ip_address()
Name = string()
Port = integer() >= 0
Reason = address | file:posix()

说明:

Similar to epmd -names, see erts:epmd(1). Host defaults to the local host. Returns the names and associated port numbers of the Erlang nodes that epmd registered at the specified host. Returns {error, address} if epmd is not operational.

ping/1

结构:

ping(Node) -> pong | pang
Types
Node = atom()

说明:

Sets up a connection to Node. Returns pong if it is successful, otherwise pang.