1 // Copyright (C) 1999-2005 Open Source Telecom Corporation.
2 // Copyright (C) 2006-2010 David Sugar, Tycho Softworks.
3 //
4 // This program is free software; you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation; either version 2 of the License, or
7 // (at your option) any later version.
8 //
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with this program; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 //
18 // As a special exception, you may use this file as part of a free software
19 // library without restriction. Specifically, if other files instantiate
20 // templates or use macros or inline functions from this file, or you compile
21 // this file and link it with other files to produce an executable, this
22 // file does not by itself cause the resulting executable to be covered by
23 // the GNU General Public License. This exception does not however
24 // invalidate any other reasons why the executable file might be covered by
25 // the GNU General Public License.
26 //
27 // This exception applies only to the code released under the name GNU
28 // Common C++. If you copy code from other releases into a copy of GNU
29 // Common C++, as the General Public License permits, the exception does
30 // not apply to the code that you add in this way. To avoid misleading
31 // anyone as to the status of such modified files, you must delete
32 // this exception notice from them.
33 //
34 // If you write modifications of your own for GNU Common C++, it is your choice
35 // whether to permit this exception to apply to your modifications.
36 // If you do not wish that, delete this exception notice.
37 //
38
44 #ifndef CCXX_PROCESS_H_
45 #define CCXX_PROCESS_H_
46
47 #ifndef CCXX_CONFIG_H_
48 #include <cc++/config.h>
49 #endif
50
51 #ifndef CCXX_THREAD_H_
53 #endif
54
55 #ifdef CCXX_NAMESPACES
56 namespace ost {
57 #endif
58
70 {
71 private:
73
74 public:
75 #ifndef WIN32
76 typedef RETSIGTYPE (*Trap)(int);
77
83 static void detach(void);
84
92 static void attach(const char *devname);
93
101 static Trap setPosixSignal(int signo, Trap handler);
102
110 static Trap setInterruptSignal(int signo, Trap handler);
111 #endif
112
120 bool lock(bool future = true);
121
125 void unlock(void);
126
144 static int spawn(
const char *exec,
const char **argv,
bool wait =
true);
145
153 static int join(int pid);
154
162 static bool cancel(int pid, int sig = 0);
163
170 static const char *getEnv(const char *name);
171
179 static void setEnv(const char *name, const char *value, bool overwrite);
180
186 static const char *getConfigDir(void);
187
193 static const char *getHomeDir(void);
194
200 static const char *getUser(void);
201
207 static bool setUser(const char *id, bool grp = true);
208
214 static bool setGroup(const char *id);
215
221 static size_t getPageSize(void);
222
226 static void setPriority(int pri);
227
231 static void setScheduler(const char *policy);
232
236 static void setRealtime(int pri = 0);
237
241 static bool isScheduler(void);
242
247 {return rtflag;};
248 };
249
260 {
261 private:
262 #ifdef WIN32
264 bool _flagged;
265 #else
267 #endif
268
269 public:
276
281
286 {unlock();};
287
296 bool lock(const char *name);
297
301 void unlock(void);
302
308 bool isLocked(void);
309 };
310
311 #ifdef CCXX_NAMESPACES
312 }
313 #endif
314
315 #endif
316
This class is used to create a "named" lock entity that can be used to control access to a resource b...
Synchronization and threading services.
static bool isRealtime(void)
Return true if realtime scheduling.
~Lockfile()
Destroy the current lock and release it.
A class for containing portable process related functions that help create portable code...