1 /*
2  * Copyright (C) Texas Instruments - http://www.ti.com/
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 
17 
18 
19 #include <utils/Errors.h>
20 #include <semaphore.h>
21 #include <stdio.h>
22 #include <stdarg.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <unistd.h>
26 
27 #include "Status.h"
28 
29 namespace Ti {
30 namespace Utils {
31 
32 class Semaphore
33 {
34 public:
35 
36     Semaphore();
37     ~Semaphore();
38 
39     //Release semaphore
40     status_t Release();
41 
42     ///Create the semaphore with initial count value
43     status_t Create(int count=0);
44 
45     ///Wait operation
46     status_t Wait();
47 
48     ///Signal operation
49     status_t Signal();
50 
51     ///Current semaphore count
52     int Count();
53 
54     ///Wait operation with a timeout
55     status_t WaitTimeout(int timeoutMicroSecs);
56 
57 private:
58     sem_t *mSemaphore;
59 
60 };
61 
62 } // namespace Utils
63 } // namespace Ti
64