cep_write_buffered.c
1.83 KB
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
/**
* \file
*
* \author Georg Hopp
*
* \copyright
* Copyright © 2014 Georg Hopp
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "trbase.h"
#include "trio.h"
#include "tr/comm_end_point.h"
int
TR_cepWriteBuffered(TR_CommEndPoint this, size_t * size)
{
TR_RemoteData data;
int send;
*size = 0;
data = TR_cepNextWriteData(this);
while(data) {
send = TR_socketSend(this->transport, data);
switch (send) {
case FALSE: // EAGAIN
case -3: // remote not ready
TR_queuePutFirst(this->write_buffer, data);
break;
case -1: // FAILURE
case -2: // remote close
TR_delete(data);
TR_queueDestroy(this->write_buffer);
*size = this->write_buffer_size;
break;
default:
{
TR_RemoteData new_data = NULL;
if (send != ((TR_SizedData)data)->size) {
new_data = TR_new(
TR_RemoteData,
((TR_SizedData)data)->data + send,
((TR_SizedData)data)->size - send,
data->remote);
} else {
new_data = TR_cepNextWriteData(this);
}
*size += send;
TR_delete(data);
data = new_data;
}
break;
}
if (send <= 0) break;
}
if (! data) {
return -4; // no more data to send
}
return send;
}
// vim: set ts=4 sw=4: