1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
/***********************************************************************/
/* */
/* OCaml */
/* */
/* Xavier Leroy, 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, with */
/* the special exception on linking described in file ../../LICENSE. */
/* */
/***********************************************************************/
/* $Id: sendrecv.c 12858 2012-08-10 14:45:51Z maranget $ */
#include <string.h>
#include <mlvalues.h>
#include <alloc.h>
#include <fail.h>
#include <memory.h>
#include <signals.h>
#include "unixsupport.h"
#ifdef HAS_SOCKETS
#include "socketaddr.h"
static int msg_flag_table[] = {
MSG_OOB, MSG_DONTROUTE, MSG_PEEK
};
CAMLprim value unix_recv(value sock, value buff, value ofs, value len,
value flags)
{
int ret, cv_flags;
long numbytes;
char iobuf[UNIX_BUFFER_SIZE];
cv_flags = convert_flag_list(flags, msg_flag_table);
Begin_root (buff);
numbytes = Long_val(len);
if (numbytes > UNIX_BUFFER_SIZE) numbytes = UNIX_BUFFER_SIZE;
enter_blocking_section();
ret = recv(Int_val(sock), iobuf, (int) numbytes, cv_flags);
leave_blocking_section();
if (ret == -1) uerror("recv", Nothing);
memmove (&Byte(buff, Long_val(ofs)), iobuf, ret);
End_roots();
return Val_int(ret);
}
CAMLprim value unix_recvfrom(value sock, value buff, value ofs, value len,
value flags)
{
int ret, cv_flags;
long numbytes;
char iobuf[UNIX_BUFFER_SIZE];
value res;
value adr = Val_unit;
union sock_addr_union addr;
socklen_param_type addr_len;
cv_flags = convert_flag_list(flags, msg_flag_table);
Begin_roots2 (buff, adr);
numbytes = Long_val(len);
if (numbytes > UNIX_BUFFER_SIZE) numbytes = UNIX_BUFFER_SIZE;
addr_len = sizeof(addr);
enter_blocking_section();
ret = recvfrom(Int_val(sock), iobuf, (int) numbytes, cv_flags,
&addr.s_gen, &addr_len);
leave_blocking_section();
if (ret == -1) uerror("recvfrom", Nothing);
memmove (&Byte(buff, Long_val(ofs)), iobuf, ret);
adr = alloc_sockaddr(&addr, addr_len, -1);
res = alloc_small(2, 0);
Field(res, 0) = Val_int(ret);
Field(res, 1) = adr;
End_roots();
return res;
}
CAMLprim value unix_send(value sock, value buff, value ofs, value len,
value flags)
{
int ret, cv_flags;
long numbytes;
char iobuf[UNIX_BUFFER_SIZE];
cv_flags = convert_flag_list(flags, msg_flag_table);
numbytes = Long_val(len);
if (numbytes > UNIX_BUFFER_SIZE) numbytes = UNIX_BUFFER_SIZE;
memmove (iobuf, &Byte(buff, Long_val(ofs)), numbytes);
enter_blocking_section();
ret = send(Int_val(sock), iobuf, (int) numbytes, cv_flags);
leave_blocking_section();
if (ret == -1) uerror("send", Nothing);
return Val_int(ret);
}
CAMLprim value unix_sendto_native(value sock, value buff, value ofs, value len,
value flags, value dest)
{
int ret, cv_flags;
long numbytes;
char iobuf[UNIX_BUFFER_SIZE];
union sock_addr_union addr;
socklen_param_type addr_len;
cv_flags = convert_flag_list(flags, msg_flag_table);
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);
enter_blocking_section();
ret = sendto(Int_val(sock), iobuf, (int) numbytes, cv_flags,
&addr.s_gen, addr_len);
leave_blocking_section();
if (ret == -1) uerror("sendto", Nothing);
return Val_int(ret);
}
CAMLprim value unix_sendto(value *argv, int argc)
{
return unix_sendto_native
(argv[0], argv[1], argv[2], argv[3], argv[4], argv[5]);
}
#else
CAMLprim value unix_recv(value sock, value buff, value ofs, value len,
value flags)
{ invalid_argument("recv not implemented"); }
CAMLprim value unix_recvfrom(value sock, value buff, value ofs, value len,
value flags)
{ invalid_argument("recvfrom not implemented"); }
CAMLprim value unix_send(value sock, value buff, value ofs, value len,
value flags)
{ invalid_argument("send not implemented"); }
CAMLprim value unix_sendto_native(value sock, value buff, value ofs, value len,
value flags, value dest)
{ invalid_argument("sendto not implemented"); }
CAMLprim value unix_sendto(value *argv, int argc)
{ invalid_argument("sendto not implemented"); }
#endif
|
