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
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
#ifndef __COMMON_H__
#define __COMMON_H__
#define KDIALOGD_APP
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <time.h>
#include "config.h"
#ifdef __KDIALOGD_H__
#include <kstandarddirs.h>
#endif
typedef enum
{
OP_NULL = 0,
OP_FILE_OPEN = 1,
OP_FILE_OPEN_MULTIPLE = 2,
OP_FILE_SAVE = 3,
OP_FOLDER = 4
} Operation;
#define PID_DIR "kde-"
#define PID_NAME "kdialogd.pid"
static const char * getPidFileName()
{
static char *pidfile=NULL;
if(!pidfile)
{
char *user=getenv("USER");
if(!user)
user=getenv("LOGNAME");
if(user)
{
char *tmp=getenv("TDETMP");
if(!tmp || !tmp[0])
tmp=getenv("TMPDIR");
if(!tmp || !tmp[0])
tmp=(char *)"/tmp";
pidfile=(char *)malloc(strlen(tmp)+strlen(PID_DIR)+strlen(user)+strlen(PID_NAME)+1);
pidfile=(char *)malloc(strlen(tmp)+strlen("/")+strlen(PID_DIR)+strlen(user)+strlen("/")+strlen(PID_NAME)+1);
#ifdef __KDIALOGD_H__
// We are kdialogd - so create socket folder if it does not exist...
sprintf(pidfile, "%s/%s%s", tmp, PID_DIR, user);
KStandardDirs::makeDir(TQString::fromAscii(pidfile));
#endif
/* CPD: TODO get dispaly number! */
sprintf(pidfile, "%s/%s%s/%s", tmp, PID_DIR, user, PID_NAME);
}
}
return pidfile;
}
#define SOCK_DIR "tdesocket-"
#define SOCK_NAME "kdialogd"
static const char * getSockName()
{
static char *sock=NULL;
if(!sock)
{
char *user=getenv("USER");
if(!user)
user=getenv("LOGNAME");
if(user)
{
char *tmp=getenv("TDETMP");
if(!tmp || !tmp[0])
tmp=getenv("TMPDIR");
if(!tmp || !tmp[0])
tmp=(char *)"/tmp";
sock=(char *)malloc(strlen(tmp)+strlen("/")+strlen(SOCK_DIR)+strlen(user)+strlen("/")+strlen(SOCK_NAME)+strlen("18446744073709551616")+1);
#ifdef __KDIALOGD_H__
// We are kdialogd - so create socket folder if it does not exist...
sprintf(sock, "%s/%s%s", tmp, SOCK_DIR, user);
KStandardDirs::makeDir(TQString::fromAscii(sock));
#endif
/* CPD: TODO get dispaly number! */
sprintf(sock, "%s/%s%s/%s-%d", tmp, SOCK_DIR, user, SOCK_NAME, 1);
}
}
return sock;
}
static int readBlock(int fd, char* pData, int size)
{
int bytesToRead=size;
do
{
fd_set fdSet;
FD_ZERO(&fdSet);
FD_SET(fd, &fdSet);
if(select(fd + 1, &fdSet, NULL, NULL, NULL)<0)
return 0;
if(FD_ISSET(fd, &fdSet))
{
int bytesRead=read(fd, &pData[size-bytesToRead], bytesToRead);
if (bytesRead>0)
bytesToRead-=bytesRead;
else
return 0;
}
}
while(bytesToRead>0);
return 1;
}
static int writeBlock(int fd, const char *pData, int size)
{
int bytesToWrite=size;
do
{
fd_set fdSet;
FD_ZERO(&fdSet);
FD_SET(fd, &fdSet);
if(select(fd + 1, NULL, &fdSet, NULL, NULL)<0)
return 0;
if(FD_ISSET(fd, &fdSet))
{
int bytesWritten=write(fd, (char *)&pData[size-bytesToWrite], bytesToWrite);
if (bytesWritten>0)
bytesToWrite-=bytesWritten;
else
return 0;
}
}
while(bytesToWrite>0);
return 1;
}
#ifdef KDIALOGD_APP
/*
So that kdailogd can terminate when the last app exits, need a way of synchronising the Gtk/TQt
apps that may wish to connect, and the removal of the socket.
To this en, a lockfile is created,and used to guard around the critical sections
*/
static int lockFd=-1;
#define LOCK_EXT ".lock"
const char * getLockName()
{
static char *lockName=NULL;
if(!lockName)
{
const char *sock=getSockName();
if(sock)
{
lockName=(char *)malloc(strlen(sock)+strlen(LOCK_EXT)+1);
sprintf(lockName, "%s%s", sock, LOCK_EXT);
}
}
return lockName;
}
/* Lock is stale if it does not exist or is older than 2 seconds */
static int isStale(const char *fname)
{
struct stat stat_buf;
return 0!=stat(fname, &stat_buf) ||
abs(stat_buf.st_mtime-time(NULL))>2;
}
static int grabLock(int tries)
{
do
{
lockFd=open(getLockName(), O_WRONLY | O_CREAT | O_EXCL, 0777);
if (lockFd<0 && errno==EEXIST)
{
/* Hmm, lock file already exists. Is it stale? */
if(isStale(getLockName()))
{
tries++; /* Increment tries so that we try again... */
unlink(getLockName());
}
else if(tries)
usleep(100000);
}
}
while(lockFd<0 && --tries);
return lockFd;
}
static void releaseLock()
{
if(lockFd>0)
{
close(lockFd);
unlink(getLockName());
}
}
#endif
#endif
|
