/*
* call-seq:
* basicsocket.send(mesg, flags [, sockaddr_to]) => numbytes_sent
*
* send _mesg_ via _basicsocket_.
*
* _mesg_ should be a string.
*
* _flags_ should be a bitwise OR of Socket::MSG_* constants.
*
* _sockaddr_to_ should be a packed sockaddr string or an addrinfo.
*
* TCPSocket.open("localhost", 80) {|s|
* s.send "GET / HTTP/1.0\r\n\r\n", 0
* p s.read
* }
*/
VALUE
rsock_bsock_send(int argc, VALUE *argv, VALUE sock)
{
struct rsock_send_arg arg;
VALUE flags, to;
rb_io_t *fptr;
int n;
rb_blocking_function_t *func;
rb_secure(4);
rb_scan_args(argc, argv, "21", &arg.mesg, &flags, &to);
StringValue(arg.mesg);
if (!NIL_P(to)) {
SockAddrStringValue(to);
to = rb_str_new4(to);
arg.to = (struct sockaddr *)RSTRING_PTR(to);
arg.tolen = RSTRING_LEN(to);
func = rsock_sendto_blocking;
}
else {
func = rsock_send_blocking;
}
GetOpenFile(sock, fptr);
arg.fd = fptr->fd;
arg.flags = NUM2INT(flags);
while (rb_thread_fd_writable(arg.fd),
(n = (int)BLOCKING_REGION(func, &arg)) < 0) {
if (rb_io_wait_writable(arg.fd)) {
continue;
}
rb_sys_fail("send(2)");
}
return INT2FIX(n);
}
int WINAPI
rb_w32_Sleep(unsigned long msec)
{
int ret;
BLOCKING_REGION(ret = rb_w32_sleep(msec),
ubf_handle, GET_THREAD());
return ret;
}
int
rb_w32_wait_events(HANDLE *events, int num, DWORD timeout)
{
int ret;
BLOCKING_REGION(ret = rb_w32_wait_events_blocking(events, num, timeout),
ubf_handle, GET_THREAD());
return ret;
}
int WINAPI
rb_w32_Sleep(unsigned long msec)
{
int ret;
BLOCKING_REGION(ret = rb_w32_sleep(msec),
ubf_handle, ruby_thread_from_native());
return ret;
}
int
rb_w32_wait_events(HANDLE *events, int num, DWORD timeout)
{
int ret;
BLOCKING_REGION(ret = rb_w32_wait_events_blocking(events, num, timeout),
ubf_handle, ruby_thread_from_native());
return ret;
}
/*
* call-seq:
* unixsocket.recv_io([klass [, mode]]) => io
*
* UNIXServer.open("/tmp/sock") {|serv|
* UNIXSocket.open("/tmp/sock") {|c|
* s = serv.accept
*
* c.send_io STDOUT
* stdout = s.recv_io
*
* p STDOUT.fileno #=> 1
* p stdout.fileno #=> 7
*
* stdout.puts "hello" # outputs "hello\n" to standard output.
* }
* }
*
*/
static VALUE
unix_recv_io(int argc, VALUE *argv, VALUE sock)
{
VALUE klass, mode;
rb_io_t *fptr;
struct iomsg_arg arg;
struct iovec vec[2];
char buf[1];
int fd;
#if FD_PASSING_BY_MSG_CONTROL
struct {
struct cmsghdr hdr;
char pad[8+sizeof(int)+8];
} cmsg;
#endif
rb_scan_args(argc, argv, "02", &klass, &mode);
if (argc == 0)
klass = rb_cIO;
if (argc <= 1)
mode = Qnil;
GetOpenFile(sock, fptr);
arg.msg.msg_name = NULL;
arg.msg.msg_namelen = 0;
vec[0].iov_base = buf;
vec[0].iov_len = sizeof(buf);
arg.msg.msg_iov = vec;
arg.msg.msg_iovlen = 1;
#if FD_PASSING_BY_MSG_CONTROL
arg.msg.msg_control = (caddr_t)&cmsg;
arg.msg.msg_controllen = CMSG_SPACE(sizeof(int));
arg.msg.msg_flags = 0;
cmsg.hdr.cmsg_len = CMSG_LEN(sizeof(int));
cmsg.hdr.cmsg_level = SOL_SOCKET;
cmsg.hdr.cmsg_type = SCM_RIGHTS;
fd = -1;
memcpy(CMSG_DATA(&cmsg.hdr), &fd, sizeof(int));
#else
arg.msg.msg_accrights = (caddr_t)&fd;
arg.msg.msg_accrightslen = sizeof(fd);
fd = -1;
#endif
arg.fd = fptr->fd;
rb_thread_wait_fd(arg.fd);
if ((int)BLOCKING_REGION(recvmsg_blocking, &arg) == -1)
rb_sys_fail("recvmsg(2)");
#if FD_PASSING_BY_MSG_CONTROL
if (arg.msg.msg_controllen < sizeof(struct cmsghdr)) {
rb_raise(rb_eSocket,
"file descriptor was not passed (msg_controllen=%d smaller than sizeof(struct cmsghdr)=%d)",
(int)arg.msg.msg_controllen, (int)sizeof(struct cmsghdr));
}
if (cmsg.hdr.cmsg_level != SOL_SOCKET) {
rb_raise(rb_eSocket,
"file descriptor was not passed (cmsg_level=%d, %d expected)",
cmsg.hdr.cmsg_level, SOL_SOCKET);
}
if (cmsg.hdr.cmsg_type != SCM_RIGHTS) {
rb_raise(rb_eSocket,
"file descriptor was not passed (cmsg_type=%d, %d expected)",
cmsg.hdr.cmsg_type, SCM_RIGHTS);
}
if (arg.msg.msg_controllen < CMSG_LEN(sizeof(int))) {
rb_raise(rb_eSocket,
"file descriptor was not passed (msg_controllen=%d smaller than CMSG_LEN(sizeof(int))=%d)",
(int)arg.msg.msg_controllen, (int)CMSG_LEN(sizeof(int)));
}
if (CMSG_SPACE(sizeof(int)) < arg.msg.msg_controllen) {
rb_raise(rb_eSocket,
"file descriptor was not passed (msg_controllen=%d bigger than CMSG_SPACE(sizeof(int))=%d)",
(int)arg.msg.msg_controllen, (int)CMSG_SPACE(sizeof(int)));
}
if (cmsg.hdr.cmsg_len != CMSG_LEN(sizeof(int))) {
rsock_discard_cmsg_resource(&arg.msg);
rb_raise(rb_eSocket,
"file descriptor was not passed (cmsg_len=%d, %d expected)",
(int)cmsg.hdr.cmsg_len, (int)CMSG_LEN(sizeof(int)));
}
#else
if (arg.msg.msg_accrightslen != sizeof(fd)) {
rb_raise(rb_eSocket,
"file descriptor was not passed (accrightslen) : %d != %d",
arg.msg.msg_accrightslen, (int)sizeof(fd));
}
#endif
#if FD_PASSING_BY_MSG_CONTROL
memcpy(&fd, CMSG_DATA(&cmsg.hdr), sizeof(int));
#endif
if (klass == Qnil)
return INT2FIX(fd);
else {
ID for_fd;
int ff_argc;
VALUE ff_argv[2];
CONST_ID(for_fd, "for_fd");
ff_argc = mode == Qnil ? 1 : 2;
ff_argv[0] = INT2FIX(fd);
ff_argv[1] = mode;
return rb_funcall2(klass, for_fd, ff_argc, ff_argv);
}
}
/*
* call-seq:
* unixsocket.send_io(io) => nil
*
* Sends _io_ as file descriptor passing.
*
* s1, s2 = UNIXSocket.pair
*
* s1.send_io STDOUT
* stdout = s2.recv_io
*
* p STDOUT.fileno #=> 1
* p stdout.fileno #=> 6
*
* stdout.puts "hello" # outputs "hello\n" to standard output.
*/
static VALUE
unix_send_io(VALUE sock, VALUE val)
{
int fd;
rb_io_t *fptr;
struct iomsg_arg arg;
struct iovec vec[1];
char buf[1];
#if FD_PASSING_BY_MSG_CONTROL
struct {
struct cmsghdr hdr;
char pad[8+sizeof(int)+8];
} cmsg;
#endif
if (rb_obj_is_kind_of(val, rb_cIO)) {
rb_io_t *valfptr;
GetOpenFile(val, valfptr);
fd = valfptr->fd;
}
else if (FIXNUM_P(val)) {
fd = FIX2INT(val);
}
else {
rb_raise(rb_eTypeError, "neither IO nor file descriptor");
}
GetOpenFile(sock, fptr);
arg.msg.msg_name = NULL;
arg.msg.msg_namelen = 0;
/* Linux and Solaris doesn't work if msg_iov is NULL. */
buf[0] = '\0';
vec[0].iov_base = buf;
vec[0].iov_len = 1;
arg.msg.msg_iov = vec;
arg.msg.msg_iovlen = 1;
#if FD_PASSING_BY_MSG_CONTROL
arg.msg.msg_control = (caddr_t)&cmsg;
arg.msg.msg_controllen = CMSG_LEN(sizeof(int));
arg.msg.msg_flags = 0;
MEMZERO((char*)&cmsg, char, sizeof(cmsg));
cmsg.hdr.cmsg_len = CMSG_LEN(sizeof(int));
cmsg.hdr.cmsg_level = SOL_SOCKET;
cmsg.hdr.cmsg_type = SCM_RIGHTS;
memcpy(CMSG_DATA(&cmsg.hdr), &fd, sizeof(int));
#else
arg.msg.msg_accrights = (caddr_t)&fd;
arg.msg.msg_accrightslen = sizeof(fd);
#endif
arg.fd = fptr->fd;
rb_thread_fd_writable(arg.fd);
if ((int)BLOCKING_REGION(sendmsg_blocking, &arg) == -1)
rb_sys_fail("sendmsg(2)");
return Qnil;
}
