1 /*-------------------------------------------------------------------------
2 * drawElements Quality Program Helper Library
3 * -------------------------------------------
4 *
5 * Copyright 2014 The Android Open Source Project
6 *
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 *
19 *//*!
20 * \file
21 * \brief Watch dog for detecting timeouts
22 *//*--------------------------------------------------------------------*/
23
24 #include "qpWatchDog.h"
25
26 #include "deThread.h"
27 #include "deClock.h"
28 #include "deMemory.h"
29
30 #include <stdio.h>
31
32 #if 0
33 # define DBGPRINT(X) qpPrintf X
34 #else
35 # define DBGPRINT(X)
36 #endif
37
38 typedef enum Status_e
39 {
40 STATUS_THREAD_RUNNING = 0,
41 STATUS_STOP_THREAD,
42
43 STATUS_LAST
44 } Status;
45
46 struct qpWatchDog_s
47 {
48 qpWatchDogFunc timeOutFunc;
49 void* timeOutUserPtr;
50 int totalTimeLimit; /* Total test case time limit in seconds */
51 int intervalTimeLimit; /* Iteration length limit in seconds */
52
53 volatile deUint64 resetTime;
54 volatile deUint64 lastTouchTime;
55
56 deThread watchDogThread;
57 volatile Status status;
58 };
59
watchDogThreadFunc(void * arg)60 static void watchDogThreadFunc (void* arg)
61 {
62 qpWatchDog* dog = (qpWatchDog*)arg;
63 DE_ASSERT(dog);
64
65 DBGPRINT(("watchDogThreadFunc(): start\n"));
66
67 while (dog->status == STATUS_THREAD_RUNNING)
68 {
69 deUint64 curTime = deGetMicroseconds();
70 int totalSecondsPassed = (int)((curTime - dog->resetTime) / 1000000ull);
71 int secondsSinceLastTouch = (int)((curTime - dog->lastTouchTime) / 1000000ull);
72
73 if ((secondsSinceLastTouch > dog->intervalTimeLimit) || (totalSecondsPassed > dog->totalTimeLimit))
74 {
75 DBGPRINT(("watchDogThreadFunc(): call timeout func\n"));
76 dog->timeOutFunc(dog, dog->timeOutUserPtr);
77 break;
78 }
79
80 deSleep(100);
81 }
82
83 DBGPRINT(("watchDogThreadFunc(): stop\n"));
84 }
85
qpWatchDog_create(qpWatchDogFunc timeOutFunc,void * userPtr,int totalTimeLimitSecs,int intervalTimeLimitSecs)86 qpWatchDog* qpWatchDog_create (qpWatchDogFunc timeOutFunc, void* userPtr, int totalTimeLimitSecs, int intervalTimeLimitSecs)
87 {
88 /* Allocate & initialize. */
89 qpWatchDog* dog = (qpWatchDog*)deCalloc(sizeof(qpWatchDog));
90 if (!dog)
91 return dog;
92
93 DE_ASSERT(timeOutFunc);
94 DE_ASSERT((totalTimeLimitSecs > 0) && (intervalTimeLimitSecs > 0));
95
96 DBGPRINT(("qpWatchDog::create(%ds, %ds)\n", totalTimeLimitSecs, intervalTimeLimitSecs));
97
98 dog->timeOutFunc = timeOutFunc;
99 dog->timeOutUserPtr = userPtr;
100 dog->totalTimeLimit = totalTimeLimitSecs;
101 dog->intervalTimeLimit = intervalTimeLimitSecs;
102
103 /* Reset (sets time values). */
104 qpWatchDog_reset(dog);
105
106 /* Initialize watchdog thread. */
107 dog->status = STATUS_THREAD_RUNNING;
108 dog->watchDogThread = deThread_create(watchDogThreadFunc, dog, DE_NULL);
109 if (!dog->watchDogThread)
110 {
111 deFree(dog);
112 return DE_NULL;
113 }
114
115 return dog;
116 }
117
qpWatchDog_reset(qpWatchDog * dog)118 void qpWatchDog_reset (qpWatchDog* dog)
119 {
120 deUint64 curTime = deGetMicroseconds();
121
122 DE_ASSERT(dog);
123 DBGPRINT(("qpWatchDog::reset()\n"));
124
125 dog->resetTime = curTime;
126 dog->lastTouchTime = curTime;
127 }
128
qpWatchDog_destroy(qpWatchDog * dog)129 void qpWatchDog_destroy (qpWatchDog* dog)
130 {
131 DE_ASSERT(dog);
132 DBGPRINT(("qpWatchDog::destroy()\n"));
133
134 /* Finish the watchdog thread. */
135 dog->status = STATUS_STOP_THREAD;
136 deThread_join(dog->watchDogThread);
137 deThread_destroy(dog->watchDogThread);
138
139 DBGPRINT(("qpWatchDog::destroy() finished\n"));
140 deFree(dog);
141 }
142
qpWatchDog_touch(qpWatchDog * dog)143 void qpWatchDog_touch (qpWatchDog* dog)
144 {
145 DE_ASSERT(dog);
146 DBGPRINT(("qpWatchDog::touch()\n"));
147 dog->lastTouchTime = deGetMicroseconds();
148 }
149