names=MSG_PEEK
visibility=public
kind=defined

--- MSG_PEEK -> Integer
Peek at incoming message。

[[m:BasicSocket#send]], [[m:BasicSocket#sendmsg]],
[[m:BasicSocket#recv]], [[m:BasicSocket#recvmsg]] の
flags 引数に用います。

@see [[man:sys/socket.h(header)]],
     [[man:send(2)]], [[man:sendto(2)]], [[man:sendmsg(2)]],
     [[man:recv(2)]], [[man:recvfrom(2)]], [[man:recvmsg(2)]],
     [[man:send(2linux)]], [[man:recv(2linux)]],
     [[man:send(2freebsd)]], [[man:recv(2freebsd)]],


