ocaml/otherlibs/win32unix/sendrecv.c

116 lines
3.8 KiB
C

/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* 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 Library General Public License. */
/* */
/***********************************************************************/
/* $Id$ */
#include <mlvalues.h>
#include <alloc.h>
#include <memory.h>
#include "unixsupport.h"
#include "socketaddr.h"
static int msg_flag_table[] = {
MSG_OOB, MSG_DONTROUTE, MSG_PEEK
};
value unix_recv(value sock, value buff, value ofs, value len, value flags)
{
int ret;
long numbytes;
char iobuf[UNIX_BUFFER_SIZE];
Begin_root (buff);
numbytes = Long_val(len);
if (numbytes > UNIX_BUFFER_SIZE) numbytes = UNIX_BUFFER_SIZE;
enter_blocking_section();
ret = recv((SOCKET) Handle_val(sock), iobuf, (int) numbytes,
convert_flag_list(flags, msg_flag_table));
leave_blocking_section();
if (ret == -1) unix_error(WSAGetLastError(), "recv", Nothing);
bcopy(iobuf, &Byte(buff, Long_val(ofs)), ret);
End_roots();
return Val_int(ret);
}
value unix_recvfrom(value sock, value buff, value ofs, value len, value flags) /* ML */
{
int ret;
long numbytes;
char iobuf[UNIX_BUFFER_SIZE];
value res;
value adr = Val_unit;
Begin_roots2 (buff, adr);
numbytes = Long_val(len);
if (numbytes > UNIX_BUFFER_SIZE) numbytes = UNIX_BUFFER_SIZE;
sock_addr_len = sizeof(sock_addr);
enter_blocking_section();
ret = recvfrom((SOCKET) Handle_val(sock),
iobuf, (int) numbytes,
convert_flag_list(flags, msg_flag_table),
&sock_addr.s_gen, &sock_addr_len);
leave_blocking_section();
if (ret == -1) unix_error(WSAGetLastError(), "recvfrom", Nothing);
bcopy(iobuf, &Byte(buff, Long_val(ofs)), ret);
adr = alloc_sockaddr();
res = alloc_small(2, 0);
Field(res, 0) = Val_int(ret);
Field(res, 1) = adr;
End_roots();
return res;
}
value unix_send(value sock, value buff, value ofs, value len, value flags) /* ML */
{
int ret;
long numbytes;
char iobuf[UNIX_BUFFER_SIZE];
numbytes = Long_val(len);
if (numbytes > UNIX_BUFFER_SIZE) numbytes = UNIX_BUFFER_SIZE;
bcopy(&Byte(buff, Long_val(ofs)), iobuf, numbytes);
enter_blocking_section();
ret = send((SOCKET) Handle_val(sock), iobuf, (int) numbytes,
convert_flag_list(flags, msg_flag_table));
leave_blocking_section();
if (ret == -1) unix_error(WSAGetLastError(), "send", Nothing);
return Val_int(ret);
}
value unix_sendto_native(value sock, value buff, value ofs, value len, value flags, value dest)
{
int ret;
long numbytes;
char iobuf[UNIX_BUFFER_SIZE];
get_sockaddr(dest);
numbytes = Long_val(len);
if (numbytes > UNIX_BUFFER_SIZE) numbytes = UNIX_BUFFER_SIZE;
bcopy(&Byte(buff, Long_val(ofs)), iobuf, numbytes);
enter_blocking_section();
ret = sendto((SOCKET) Handle_val(sock),
iobuf, (int) numbytes,
convert_flag_list(flags, msg_flag_table),
&sock_addr.s_gen, sock_addr_len);
leave_blocking_section();
if (ret == -1) unix_error(WSAGetLastError(), "sendto", Nothing);
return Val_int(ret);
}
value unix_sendto(argv, argc) /* ML */
value * argv;
int argc;
{
return unix_sendto_native
(argv[0], argv[1], argv[2], argv[3], argv[4], argv[5]);
}