1 //
2 // Copyright (c) 2020 The Khronos Group Inc.
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 // http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 //
16 #include "testBase.h"
17
18 static volatile cl_int sDestructorIndex;
19
context_destructor_callback(cl_context context,void * userData)20 void CL_CALLBACK context_destructor_callback(cl_context context, void *userData)
21 {
22 int *userPtr = (int *)userData;
23
24 // ordering of callbacks is guaranteed, meaning we don't need to do atomic
25 // operation here
26 *userPtr = ++sDestructorIndex;
27 }
28
test_context_destructor_callback(cl_device_id deviceID,cl_context context,cl_command_queue queue,int num_elements)29 int test_context_destructor_callback(cl_device_id deviceID, cl_context context,
30 cl_command_queue queue, int num_elements)
31 {
32 cl_int error;
33 clContextWrapper localContext =
34 clCreateContext(NULL, 1, &deviceID, NULL, NULL, &error);
35 test_error(error, "Unable to create local context");
36
37 // Set up some variables to catch the order in which callbacks are called
38 volatile int callbackOrders[3] = { 0, 0, 0 };
39 sDestructorIndex = 0;
40
41 // Set up the callbacks
42 error = clSetContextDestructorCallback(
43 localContext, context_destructor_callback, (void *)&callbackOrders[0]);
44 test_error(error, "Unable to set destructor callback");
45
46 error = clSetContextDestructorCallback(
47 localContext, context_destructor_callback, (void *)&callbackOrders[1]);
48 test_error(error, "Unable to set destructor callback");
49
50 error = clSetContextDestructorCallback(
51 localContext, context_destructor_callback, (void *)&callbackOrders[2]);
52 test_error(error, "Unable to set destructor callback");
53
54 // Now release the context, which SHOULD call the callbacks
55 error = clReleaseContext(localContext);
56 test_error(error, "Unable to release local context");
57
58 // Note: since we manually released the context, we need to set it to NULL
59 // to prevent a double-release
60 localContext = NULL;
61
62 // At this point, all three callbacks should have already been called
63 int numErrors = 0;
64 for (int i = 0; i < 3; i++)
65 {
66 // Spin waiting for the release to finish. If you don't call the
67 // context_destructor_callback, you will not pass the test.
68 log_info("\tWaiting for callback %d...\n", i);
69 int wait = 0;
70 while (0 == callbackOrders[i])
71 {
72 usleep(100000); // 1/10th second
73 if (++wait >= 10 * 10)
74 {
75 log_error("\tERROR: Callback %d was not called within 10 "
76 "seconds! Assuming failure.\n",
77 i + 1);
78 numErrors++;
79 break;
80 }
81 }
82
83 if (callbackOrders[i] != 3 - i)
84 {
85 log_error("\tERROR: Callback %d was called in the wrong order! "
86 "(Was called order %d, should have been order %d)\n",
87 i + 1, callbackOrders[i], 3 - i);
88 numErrors++;
89 }
90 }
91
92 return (numErrors > 0) ? TEST_FAIL : TEST_PASS;
93 }
94