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Support `connect' on nonblocking sockets

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* libguile/socket.c (scm_connect):
* doc/ref/posix.texi (Network Sockets and Communication): Support
  connect on nonblocking ports.
This commit is contained in:
Andy Wingo 2016-06-02 23:12:06 +02:00
parent e6cc051f8c
commit 69ea1fc45b
2 changed files with 11 additions and 6 deletions
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10
doc/ref/posix.texi
View file

@ -3213,10 +3213,12 @@ The return value is unspecified.
@deffnx {Scheme Procedure} connect sock AF_INET6 ipv6addr port [flowinfo [scopeid]]
@deffnx {Scheme Procedure} connect sock AF_UNIX path
@deffnx {C Function} scm_connect (sock, fam, address, args)
Initiate a connection on socket port @var{sock} to a given address.
The destination is either a socket address object, or arguments the
same as @code{make-socket-address} would take to make such an object
(@pxref{Network Socket Address}). The return value is unspecified.
Initiate a connection on socket port @var{sock} to a given address. The
destination is either a socket address object, or arguments the same as
@code{make-socket-address} would take to make such an object
(@pxref{Network Socket Address}). Return true unless the socket was
configured as non-blocking and the connection could not be made
immediately.
@example
(connect sock AF_INET INADDR_LOOPBACK 23)

7
libguile/socket.c
View file

@ -834,7 +834,8 @@ SCM_DEFINE (scm_connect, "connect", 2, 1, 1,
"Alternatively, the second argument can be a socket address object "
"as returned by @code{make-socket-address}, in which case the "
"no additional arguments should be passed.\n\n"
"The return value is unspecified.")
"Return true, unless the socket was configured to be non-blocking\n"
"and the operation has not finished yet.\n")
#define FUNC_NAME s_scm_connect
{
int fd;
@ -859,10 +860,12 @@ SCM_DEFINE (scm_connect, "connect", 2, 1, 1,
free (soka);
errno = save_errno;
if (errno == EINPROGRESS)
return SCM_BOOL_F;
SCM_SYSERROR;
}
free (soka);
return SCM_UNSPECIFIED;
return SCM_BOOL_T;
}
#undef FUNC_NAME