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Diffstat (limited to 'ext/socket/ancdata.c')
-rw-r--r--ext/socket/ancdata.c97
1 files changed, 15 insertions, 82 deletions
diff --git a/ext/socket/ancdata.c b/ext/socket/ancdata.c
index afa75ef4726..877975e4df1 100644
--- a/ext/socket/ancdata.c
+++ b/ext/socket/ancdata.c
@@ -1487,11 +1487,11 @@ make_io_for_unix_rights(VALUE ctl, struct cmsghdr *cmh, char *msg_end)
#endif
static VALUE
-bsock_recvmsg_internal(int argc, VALUE *argv, VALUE sock, int nonblock)
+bsock_recvmsg_internal(VALUE sock,
+ VALUE vmaxdatlen, VALUE vflags, VALUE vmaxctllen,
+ VALUE scm_rights, VALUE ex, int nonblock)
{
rb_io_t *fptr;
- VALUE vmaxdatlen, vmaxctllen, vflags;
- VALUE vopts;
int grow_buffer;
size_t maxdatlen;
int flags, orig_flags;
@@ -1512,17 +1512,14 @@ bsock_recvmsg_internal(int argc, VALUE *argv, VALUE sock, int nonblock)
int gc_done = 0;
#endif
-
- rb_scan_args(argc, argv, "03:", &vmaxdatlen, &vflags, &vmaxctllen, &vopts);
-
- maxdatlen = NIL_P(vmaxdatlen) ? 4096 : NUM2SIZET(vmaxdatlen);
+ maxdatlen = NUM2SIZET(vmaxdatlen);
#if defined(HAVE_STRUCT_MSGHDR_MSG_CONTROL)
- maxctllen = NIL_P(vmaxctllen) ? 4096 : NUM2SIZET(vmaxctllen);
+ maxctllen = NUM2SIZET(vmaxctllen);
#else
if (!NIL_P(vmaxctllen))
rb_raise(rb_eArgError, "control message not supported");
#endif
- flags = NIL_P(vflags) ? 0 : NUM2INT(vflags);
+ flags = NUM2INT(vflags);
#ifdef MSG_DONTWAIT
if (nonblock)
flags |= MSG_DONTWAIT;
@@ -1532,7 +1529,7 @@ bsock_recvmsg_internal(int argc, VALUE *argv, VALUE sock, int nonblock)
grow_buffer = NIL_P(vmaxdatlen) || NIL_P(vmaxctllen);
request_scm_rights = 0;
- if (!NIL_P(vopts) && RTEST(rb_hash_aref(vopts, ID2SYM(rb_intern("scm_rights")))))
+ if (RTEST(scm_rights))
request_scm_rights = 1;
#if !defined(HAVE_STRUCT_MSGHDR_MSG_CONTROL)
if (request_scm_rights)
@@ -1602,7 +1599,7 @@ bsock_recvmsg_internal(int argc, VALUE *argv, VALUE sock, int nonblock)
goto retry;
}
if (nonblock && (errno == EWOULDBLOCK || errno == EAGAIN)) {
- if (rsock_opt_false_p(vopts, sym_exception)) {
+ if (ex == Qfalse) {
return sym_wait_readable;
}
rb_readwrite_sys_fail(RB_IO_WAIT_READABLE, "recvmsg(2) would block");
@@ -1720,85 +1717,21 @@ bsock_recvmsg_internal(int argc, VALUE *argv, VALUE sock, int nonblock)
#endif
#if defined(HAVE_RECVMSG)
-/*
- * call-seq:
- * basicsocket.recvmsg(maxmesglen=nil, flags=0, maxcontrollen=nil, opts={}) => [mesg, sender_addrinfo, rflags, *controls]
- *
- * recvmsg receives a message using recvmsg(2) system call in blocking manner.
- *
- * _maxmesglen_ is the maximum length of mesg to receive.
- *
- * _flags_ is bitwise OR of MSG_* constants such as Socket::MSG_PEEK.
- *
- * _maxcontrollen_ is the maximum length of controls (ancillary data) to receive.
- *
- * _opts_ is option hash.
- * Currently :scm_rights=>bool is the only option.
- *
- * :scm_rights option specifies that application expects SCM_RIGHTS control message.
- * If the value is nil or false, application don't expects SCM_RIGHTS control message.
- * In this case, recvmsg closes the passed file descriptors immediately.
- * This is the default behavior.
- *
- * If :scm_rights value is neither nil nor false, application expects SCM_RIGHTS control message.
- * In this case, recvmsg creates IO objects for each file descriptors for
- * Socket::AncillaryData#unix_rights method.
- *
- * The return value is 4-elements array.
- *
- * _mesg_ is a string of the received message.
- *
- * _sender_addrinfo_ is a sender socket address for connection-less socket.
- * It is an Addrinfo object.
- * For connection-oriented socket such as TCP, sender_addrinfo is platform dependent.
- *
- * _rflags_ is a flags on the received message which is bitwise OR of MSG_* constants such as Socket::MSG_TRUNC.
- * It will be nil if the system uses 4.3BSD style old recvmsg system call.
- *
- * _controls_ is ancillary data which is an array of Socket::AncillaryData objects such as:
- *
- * #<Socket::AncillaryData: AF_UNIX SOCKET RIGHTS 7>
- *
- * _maxmesglen_ and _maxcontrollen_ can be nil.
- * In that case, the buffer will be grown until the message is not truncated.
- * Internally, MSG_PEEK is used and MSG_TRUNC/MSG_CTRUNC are checked.
- *
- * recvmsg can be used to implement recv_io as follows:
- *
- * mesg, sender_sockaddr, rflags, *controls = sock.recvmsg(:scm_rights=>true)
- * controls.each {|ancdata|
- * if ancdata.cmsg_is?(:SOCKET, :RIGHTS)
- * return ancdata.unix_rights[0]
- * end
- * }
- *
- */
VALUE
-rsock_bsock_recvmsg(int argc, VALUE *argv, VALUE sock)
+rsock_bsock_recvmsg(VALUE sock, VALUE dlen, VALUE flags, VALUE clen,
+ VALUE scm_rights)
{
- return bsock_recvmsg_internal(argc, argv, sock, 0);
+ VALUE ex = Qtrue;
+ return bsock_recvmsg_internal(sock, dlen, flags, clen, scm_rights, ex, 0);
}
#endif
#if defined(HAVE_RECVMSG)
-/*
- * call-seq:
- * basicsocket.recvmsg_nonblock(maxdatalen=nil, flags=0, maxcontrollen=nil, opts={}) => [data, sender_addrinfo, rflags, *controls]
- *
- * recvmsg receives a message using recvmsg(2) system call in non-blocking manner.
- *
- * It is similar to BasicSocket#recvmsg
- * but non-blocking flag is set before the system call
- * and it doesn't retry the system call.
- *
- * By specifying `exception: false`, the _opts_ hash allows you to indicate
- * that recvmsg_nonblock should not raise an IO::WaitWritable exception, but
- * return the symbol :wait_writable instead.
- */
VALUE
-rsock_bsock_recvmsg_nonblock(int argc, VALUE *argv, VALUE sock)
+rsock_bsock_recvmsg_nonblock(VALUE sock, VALUE dlen, VALUE flags, VALUE clen,
+ VALUE scm_rights, VALUE ex)
{
- return bsock_recvmsg_internal(argc, argv, sock, 1);
+ return bsock_recvmsg_internal(sock, dlen, flags, clen, scm_rights, ex, 1);
}
#endif