*/ RL_API int RL_Start(REBYTE *bin, REBINT len, REBCNT flags)
/*
** Evaluate the default boot function.
**
** Returns:
** Zero on success, otherwise indicates an error occurred.
** Arguments:
** bin - optional startup code (compressed), can be null
** len - length of above bin
** flags - special flags
** Notes:
** This function completes the startup sequence by calling
** the sys/start function.
**
***********************************************************************/
{
REBVAL *val;
REBSER spec = {0};
REBSER *ser;
if (bin) {
spec.data = bin;
spec.tail = len;
ser = Decompress(&spec, 0, -1, 10000000, 0);
if (!ser) return 1;
val = BLK_SKIP(Sys_Context, SYS_CTX_BOOT_HOST);
Set_Binary(val, ser);
}
return Init_Mezz(0);
}
*/ RL_API void *RL_Extend(REBYTE *source, RXICAL call)
/*
** Appends embedded extension to system/catalog/boot-exts.
**
** Returns:
** A pointer to the REBOL library (see reb-lib.h).
** Arguments:
** source - A pointer to a UTF-8 (or ASCII) string that provides
** extension module header, function definitions, and other
** related functions and data.
** call - A pointer to the extension's command dispatcher.
** Notes:
** This function simply adds the embedded extension to the
** boot-exts list. All other processing and initialization
** happens later during startup. Each embedded extension is
** queried and init using LOAD-EXTENSION system native.
** See c:extensions-embedded
**
***********************************************************************/
{
REBVAL *value;
REBSER *ser;
value = BLK_SKIP(Sys_Context, SYS_CTX_BOOT_EXTS);
if (IS_BLOCK(value)) ser = VAL_SERIES(value);
else {
ser = Make_Block(2);
Set_Block(value, ser);
}
value = Append_Value(ser);
Set_Binary(value, Copy_Bytes(source, -1)); // UTF-8
value = Append_Value(ser);
SET_HANDLE(value, call);
return Extension_Lib();
}
*/ static REB_R Console_Actor(struct Reb_Call *call_, REBSER *port, REBCNT action)
/*
***********************************************************************/
{
REBREQ *req;
REBINT result;
REBVAL *arg = D_ARG(2);
REBSER *ser;
Validate_Port(port, action);
arg = D_ARG(2);
*D_OUT = *D_ARG(1);
req = cast(REBREQ*, Use_Port_State(port, RDI_STDIO, sizeof(REBREQ)));
switch (action) {
case A_READ:
// If not open, open it:
if (!IS_OPEN(req)) {
if (OS_DO_DEVICE(req, RDC_OPEN)) Trap_Port_DEAD_END(RE_CANNOT_OPEN, port, req->error);
}
// If no buffer, create a buffer:
arg = OFV(port, STD_PORT_DATA);
if (!IS_STRING(arg) && !IS_BINARY(arg)) {
Set_Binary(arg, MAKE_OS_BUFFER(OUT_BUF_SIZE));
}
ser = VAL_SERIES(arg);
RESET_SERIES(ser);
req->common.data = BIN_HEAD(ser);
req->length = SERIES_AVAIL(ser);
#ifdef nono
// Is the buffer large enough?
req->length = SERIES_AVAIL(ser); // space available
if (req->length < OUT_BUF_SIZE/2) Extend_Series(ser, OUT_BUF_SIZE);
req->length = SERIES_AVAIL(ser);
// Don't make buffer too large: Bug #174 ?????
if (req->length > 1024) req->length = 1024; //???
req->common.data = STR_TAIL(ser); // write at tail //???
if (SERIES_TAIL(ser) == 0) req->actual = 0; //???
#endif
result = OS_DO_DEVICE(req, RDC_READ);
if (result < 0) Trap_Port_DEAD_END(RE_READ_ERROR, port, req->error);
#ifdef nono
// Does not belong here!!
// Remove or replace CRs:
result = 0;
for (n = 0; n < req->actual; n++) {
chr = GET_ANY_CHAR(ser, n);
if (chr == CR) {
chr = LF;
// Skip LF if it follows:
if ((n+1) < req->actual &&
LF == GET_ANY_CHAR(ser, n+1)) n++;
}
SET_ANY_CHAR(ser, result, chr);
result++;
}
#endif
// !!! Among many confusions in this file, it said "Another copy???"
//Set_String(D_OUT, Copy_OS_Str(ser->data, result));
Set_Binary(D_OUT, Copy_Bytes(req->common.data, req->actual));
break;
case A_OPEN:
// ?? why???
//if (OS_DO_DEVICE(req, RDC_OPEN)) Trap_Port_DEAD_END(RE_CANNOT_OPEN, port);
SET_OPEN(req);
break;
case A_CLOSE:
SET_CLOSED(req);
//OS_DO_DEVICE(req, RDC_CLOSE);
break;
case A_OPENQ:
if (IS_OPEN(req)) return R_TRUE;
return R_FALSE;
default:
Trap_Action_DEAD_END(REB_PORT, action);
}
return R_OUT;
}
*/ static int Transport_Actor(REBVAL *ds, REBSER *port, REBCNT action, enum Transport_Types proto)
/*
***********************************************************************/
{
REBREQ *sock; // IO request
REBVAL *spec; // port spec
REBVAL *arg; // action argument value
REBVAL *val; // e.g. port number value
REBINT result; // IO result
REBCNT refs; // refinement argument flags
REBCNT len; // generic length
REBSER *ser; // simplifier
Validate_Port(port, action);
*D_OUT = *D_ARG(1);
arg = D_ARG(2);
refs = 0;
sock = cast(REBREQ*, Use_Port_State(port, RDI_NET, sizeof(*sock)));
if (proto == TRANSPORT_UDP) {
SET_FLAG(sock->modes, RST_UDP);
}
//Debug_Fmt("Sock: %x", sock);
spec = OFV(port, STD_PORT_SPEC);
if (!IS_OBJECT(spec)) Trap_DEAD_END(RE_INVALID_PORT);
// sock->timeout = 4000; // where does this go? !!!
// HOW TO PREVENT OVERWRITE DURING BUSY OPERATION!!!
// Should it just ignore it or cause an error?
// Actions for an unopened socket:
if (!IS_OPEN(sock)) {
switch (action) { // Ordered by frequency
case A_OPEN:
arg = Obj_Value(spec, STD_PORT_SPEC_NET_HOST);
val = Obj_Value(spec, STD_PORT_SPEC_NET_PORT_ID);
if (OS_DO_DEVICE(sock, RDC_OPEN)) Trap_Port_DEAD_END(RE_CANNOT_OPEN, port, -12);
SET_OPEN(sock);
// Lookup host name (an extra TCP device step):
if (IS_STRING(arg)) {
sock->common.data = VAL_BIN(arg);
sock->special.net.remote_port = IS_INTEGER(val) ? VAL_INT32(val) : 80;
result = OS_DO_DEVICE(sock, RDC_LOOKUP); // sets remote_ip field
if (result < 0) Trap_Port_DEAD_END(RE_NO_CONNECT, port, sock->error);
return R_OUT;
}
// Host IP specified:
else if (IS_TUPLE(arg)) {
sock->special.net.remote_port = IS_INTEGER(val) ? VAL_INT32(val) : 80;
memcpy(&sock->special.net.remote_ip, VAL_TUPLE(arg), 4);
break;
}
// No host, must be a LISTEN socket:
else if (IS_NONE(arg)) {
SET_FLAG(sock->modes, RST_LISTEN);
sock->common.data = 0; // where ACCEPT requests are queued
sock->special.net.local_port = IS_INTEGER(val) ? VAL_INT32(val) : 8000;
break;
}
else Trap_Port_DEAD_END(RE_INVALID_SPEC, port, -10);
case A_CLOSE:
return R_OUT;
case A_OPENQ:
return R_FALSE;
case A_UPDATE: // allowed after a close
break;
default:
Trap_Port_DEAD_END(RE_NOT_OPEN, port, -12);
}
}
// Actions for an open socket:
switch (action) { // Ordered by frequency
case A_UPDATE:
// Update the port object after a READ or WRITE operation.
// This is normally called by the WAKE-UP function.
arg = OFV(port, STD_PORT_DATA);
if (sock->command == RDC_READ) {
if (ANY_BINSTR(arg)) VAL_TAIL(arg) += sock->actual;
}
else if (sock->command == RDC_WRITE) {
SET_NONE(arg); // Write is done.
}
return R_NONE;
case A_READ:
// Read data into a buffer, expanding the buffer if needed.
// If no length is given, program must stop it at some point.
refs = Find_Refines(ds, ALL_READ_REFS);
if (!GET_FLAG(sock->modes, RST_UDP)
&& !GET_FLAG(sock->state, RSM_CONNECT))
Trap_Port_DEAD_END(RE_NOT_CONNECTED, port, -15);
// Setup the read buffer (allocate a buffer if needed):
arg = OFV(port, STD_PORT_DATA);
if (!IS_STRING(arg) && !IS_BINARY(arg)) {
Set_Binary(arg, Make_Binary(NET_BUF_SIZE));
}
ser = VAL_SERIES(arg);
sock->length = SERIES_AVAIL(ser); // space available
if (sock->length < NET_BUF_SIZE/2) Extend_Series(ser, NET_BUF_SIZE);
sock->length = SERIES_AVAIL(ser);
sock->common.data = STR_TAIL(ser); // write at tail
//if (SERIES_TAIL(ser) == 0)
sock->actual = 0; // Actual for THIS read, not for total.
//Print("(max read length %d)", sock->length);
result = OS_DO_DEVICE(sock, RDC_READ); // recv can happen immediately
if (result < 0) Trap_Port_DEAD_END(RE_READ_ERROR, port, sock->error);
break;
case A_WRITE:
// Write the entire argument string to the network.
// The lower level write code continues until done.
refs = Find_Refines(ds, ALL_WRITE_REFS);
if (!GET_FLAG(sock->modes, RST_UDP)
&& !GET_FLAG(sock->state, RSM_CONNECT))
Trap_Port_DEAD_END(RE_NOT_CONNECTED, port, -15);
// Determine length. Clip /PART to size of string if needed.
spec = D_ARG(2);
len = VAL_LEN(spec);
if (refs & AM_WRITE_PART) {
REBCNT n = Int32s(D_ARG(ARG_WRITE_LENGTH), 0);
if (n <= len) len = n;
}
// Setup the write:
*OFV(port, STD_PORT_DATA) = *spec; // keep it GC safe
sock->length = len;
sock->common.data = VAL_BIN_DATA(spec);
sock->actual = 0;
//Print("(write length %d)", len);
result = OS_DO_DEVICE(sock, RDC_WRITE); // send can happen immediately
if (result < 0) Trap_Port_DEAD_END(RE_WRITE_ERROR, port, sock->error);
if (result == DR_DONE) SET_NONE(OFV(port, STD_PORT_DATA));
break;
case A_PICK:
// FIRST server-port returns new port connection.
len = Get_Num_Arg(arg); // Position
if (len == 1 && GET_FLAG(sock->modes, RST_LISTEN) && sock->common.data)
Accept_New_Port(ds, port, sock); // sets D_OUT
else
Trap_Range_DEAD_END(arg);
break;
case A_QUERY:
// Get specific information - the scheme's info object.
// Special notation allows just getting part of the info.
Ret_Query_Net(port, sock, D_OUT);
break;
case A_OPENQ:
// Connect for clients, bind for servers:
if (sock->state & ((1<<RSM_CONNECT) | (1<<RSM_BIND))) return R_TRUE;
return R_FALSE;
case A_CLOSE:
if (IS_OPEN(sock)) {
OS_DO_DEVICE(sock, RDC_CLOSE);
SET_CLOSED(sock);
}
break;
case A_LENGTHQ:
arg = OFV(port, STD_PORT_DATA);
len = ANY_SERIES(arg) ? VAL_TAIL(arg) : 0;
SET_INTEGER(D_OUT, len);
break;
case A_OPEN:
result = OS_DO_DEVICE(sock, RDC_CONNECT);
if (result < 0) Trap_Port_DEAD_END(RE_NO_CONNECT, port, sock->error);
break;
//Trap_Port_DEAD_END(RE_ALREADY_OPEN, port);
case A_DELETE: // Temporary to TEST error handler!
{
REBVAL *event = Append_Event(); // sets signal
VAL_SET(event, REB_EVENT); // (has more space, if we need it)
VAL_EVENT_TYPE(event) = EVT_ERROR;
VAL_EVENT_DATA(event) = 101;
VAL_EVENT_REQ(event) = sock;
}
break;
default:
Trap_Action_DEAD_END(REB_PORT, action);
}
return R_OUT;
}