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/**************************************************************************/
/* */
/* OCaml */
/* */
/* Xavier Leroy and Pascal Cuoq, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* en Automatique. */
/* */
/* All rights reserved. This file is distributed under the terms of */
/* the GNU Lesser General Public License version 2.1, with the */
/* special exception on linking described in the file LICENSE. */
/* */
/**************************************************************************/
#include <caml/mlvalues.h>
#include <caml/alloc.h>
#include <caml/memory.h>
#include <caml/signals.h>
#include "unixsupport.h"
#include "socketaddr.h"
static const int msg_flag_table[] = {
MSG_OOB, MSG_DONTROUTE, MSG_PEEK
};
CAMLprim value caml_unix_recv(value sock, value buff, value ofs, value len,
value flags)
{
CAMLparam1(buff);
SOCKET s = Socket_val(sock);
int flg = caml_convert_flag_list(flags, msg_flag_table);
int ret;
intnat numbytes;
char iobuf[UNIX_BUFFER_SIZE];
DWORD err = 0;
numbytes = Long_val(len);
if (numbytes > UNIX_BUFFER_SIZE) numbytes = UNIX_BUFFER_SIZE;
caml_enter_blocking_section();
ret = recv(s, iobuf, (int) numbytes, flg);
if (ret == -1) err = WSAGetLastError();
caml_leave_blocking_section();
if (ret == -1) {
caml_win32_maperr(err);
caml_uerror("recv", Nothing);
}
memmove (&Byte(buff, Long_val(ofs)), iobuf, ret);
CAMLreturn(Val_int(ret));
}
CAMLprim value caml_unix_recvfrom(value sock, value buff, value ofs, value len,
value flags)
{
CAMLparam1(buff);
CAMLlocal1(adr);
SOCKET s = Socket_val(sock);
int flg = caml_convert_flag_list(flags, msg_flag_table);
int ret;
intnat numbytes;
char iobuf[UNIX_BUFFER_SIZE];
value res;
union sock_addr_union addr;
socklen_param_type addr_len;
DWORD err = 0;
numbytes = Long_val(len);
if (numbytes > UNIX_BUFFER_SIZE) numbytes = UNIX_BUFFER_SIZE;
addr_len = sizeof(addr);
caml_enter_blocking_section();
ret = recvfrom(s, iobuf, (int) numbytes, flg, &addr.s_gen, &addr_len);
if (ret == -1) err = WSAGetLastError();
caml_leave_blocking_section();
if (ret == -1) {
caml_win32_maperr(err);
caml_uerror("recvfrom", Nothing);
}
memmove (&Byte(buff, Long_val(ofs)), iobuf, ret);
adr = caml_unix_alloc_sockaddr(&addr, addr_len, -1);
res = caml_alloc_small(2, 0);
Field(res, 0) = Val_int(ret);
Field(res, 1) = adr;
CAMLreturn(res);
}
CAMLprim value caml_unix_send(value sock, value buff, value ofs, value len,
value flags)
{
SOCKET s = Socket_val(sock);
int flg = caml_convert_flag_list(flags, msg_flag_table);
int ret;
intnat numbytes;
char iobuf[UNIX_BUFFER_SIZE];
DWORD err = 0;
numbytes = Long_val(len);
if (numbytes > UNIX_BUFFER_SIZE) numbytes = UNIX_BUFFER_SIZE;
memmove (iobuf, &Byte(buff, Long_val(ofs)), numbytes);
caml_enter_blocking_section();
ret = send(s, iobuf, (int) numbytes, flg);
if (ret == -1) err = WSAGetLastError();
caml_leave_blocking_section();
if (ret == -1) {
caml_win32_maperr(err);
caml_uerror("send", Nothing);
}
return Val_int(ret);
}
value caml_unix_sendto_native(value sock, value buff, value ofs, value len,
value flags, value dest)
{
SOCKET s = Socket_val(sock);
int flg = caml_convert_flag_list(flags, msg_flag_table);
int ret;
intnat numbytes;
char iobuf[UNIX_BUFFER_SIZE];
union sock_addr_union addr;
socklen_param_type addr_len;
DWORD err = 0;
caml_unix_get_sockaddr(dest, &addr, &addr_len);
numbytes = Long_val(len);
if (numbytes > UNIX_BUFFER_SIZE) numbytes = UNIX_BUFFER_SIZE;
memmove (iobuf, &Byte(buff, Long_val(ofs)), numbytes);
caml_enter_blocking_section();
ret = sendto(s, iobuf, (int) numbytes, flg, &addr.s_gen, addr_len);
if (ret == -1) err = WSAGetLastError();
caml_leave_blocking_section();
if (ret == -1) {
caml_win32_maperr(err);
caml_uerror("sendto", Nothing);
}
return Val_int(ret);
}
CAMLprim value caml_unix_sendto(value * argv, int argc)
{
return caml_unix_sendto_native
(argv[0], argv[1], argv[2], argv[3], argv[4], argv[5]);
}
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