4 * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include "bctrace.inc"
28 class Condition : public trace_info
31 Condition(int init_value = 0, const char *title = 0, int is_binary = 0);
34 // Reset to init_value whether locked or not.
36 // Block if value <= 0, then decrease value
37 void lock(const char *location = 0);
40 // Block for requested duration if value <= 0.
41 // value is decreased whether or not the condition is unlocked in time
42 // Returns 1 if timeout or 0 if success.
43 int timed_lock(int microseconds, const char *location = 0);
47 pthread_mutex_t mutex;
57 class TCondition : public Condition
60 TCondition(int init_value = 0, const char *title = 0, int is_binary = 0)
61 : Condition(init_value, title, is_binary) {
62 printf("new TCondition(%s) = %p\n", title, this);
65 printf("del TCondition(%s) = %p\n", title, this);
67 void lock(const char *location = 0) {
68 printf("Locking %p: %s\n", this, title); Condition::lock(location);
69 printf("Locked %p: %s\n", this, title);
72 printf("Unlocking %p: %s\n", this, title); Condition::unlock();
74 int timed_lock(int microseconds, const char *location = 0) {
75 printf("timed locking %p: %s\n", this, title);
76 int ret = Condition::timed_lock(microseconds, location);
77 printf("timed locked %p:%d %s\n", this, ret, title); return ret;
80 printf("Reset %p: %s\n", this, title);
84 int ret = Condition::get_value();
85 printf("get_value %p:%d %s\n", this, ret, title);