Michael Ernst Peter
/
Test_GPS
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ThreadFlag.cpp@63:5726064028ca, 2022-06-09 (annotated)
- Committer:
- pmic
- Date:
- Thu Jun 09 07:35:33 2022 +0200
- Revision:
- 63:5726064028ca
Included more new files
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| pmic | 63:5726064028ca | 1 | /* |
| pmic | 63:5726064028ca | 2 | * ThreadFlag.cpp |
| pmic | 63:5726064028ca | 3 | * Copyright (c) 2020, ZHAW |
| pmic | 63:5726064028ca | 4 | * All rights reserved. |
| pmic | 63:5726064028ca | 5 | */ |
| pmic | 63:5726064028ca | 6 | |
| pmic | 63:5726064028ca | 7 | #include "ThreadFlag.h" |
| pmic | 63:5726064028ca | 8 | |
| pmic | 63:5726064028ca | 9 | using namespace std; |
| pmic | 63:5726064028ca | 10 | |
| pmic | 63:5726064028ca | 11 | unsigned int ThreadFlag::threadFlags = 0; |
| pmic | 63:5726064028ca | 12 | |
| pmic | 63:5726064028ca | 13 | /** |
| pmic | 63:5726064028ca | 14 | * Creates a signal object and assignes a unique flag. |
| pmic | 63:5726064028ca | 15 | */ |
| pmic | 63:5726064028ca | 16 | ThreadFlag::ThreadFlag() |
| pmic | 63:5726064028ca | 17 | { |
| pmic | 63:5726064028ca | 18 | mutex.lock(); |
| pmic | 63:5726064028ca | 19 | |
| pmic | 63:5726064028ca | 20 | unsigned int n = 0; |
| pmic | 63:5726064028ca | 21 | while ((((1 << n) & threadFlags) > 0) && (n < 30)) n++; |
| pmic | 63:5726064028ca | 22 | threadFlag = (1 << n); |
| pmic | 63:5726064028ca | 23 | |
| pmic | 63:5726064028ca | 24 | mutex.unlock(); |
| pmic | 63:5726064028ca | 25 | } |
| pmic | 63:5726064028ca | 26 | |
| pmic | 63:5726064028ca | 27 | /** |
| pmic | 63:5726064028ca | 28 | * Deletes the signal object and releases the assigned flag. |
| pmic | 63:5726064028ca | 29 | */ |
| pmic | 63:5726064028ca | 30 | ThreadFlag::~ThreadFlag() |
| pmic | 63:5726064028ca | 31 | { |
| pmic | 63:5726064028ca | 32 | mutex.lock(); |
| pmic | 63:5726064028ca | 33 | |
| pmic | 63:5726064028ca | 34 | threadFlags &= ~threadFlag; |
| pmic | 63:5726064028ca | 35 | |
| pmic | 63:5726064028ca | 36 | mutex.unlock(); |
| pmic | 63:5726064028ca | 37 | } |
| pmic | 63:5726064028ca | 38 | |
| pmic | 63:5726064028ca | 39 | /** |
| pmic | 63:5726064028ca | 40 | * Gets the assigned thread flag. |
| pmic | 63:5726064028ca | 41 | */ |
| pmic | 63:5726064028ca | 42 | unsigned int ThreadFlag::read() |
| pmic | 63:5726064028ca | 43 | { |
| pmic | 63:5726064028ca | 44 | return threadFlag; |
| pmic | 63:5726064028ca | 45 | } |
| pmic | 63:5726064028ca | 46 | |
| pmic | 63:5726064028ca | 47 | /** |
| pmic | 63:5726064028ca | 48 | * The empty operator is a shorthand notation of the <code>read()</code> method. |
| pmic | 63:5726064028ca | 49 | */ |
| pmic | 63:5726064028ca | 50 | ThreadFlag::operator unsigned int() |
| pmic | 63:5726064028ca | 51 | { |
| pmic | 63:5726064028ca | 52 | return read(); |
| pmic | 63:5726064028ca | 53 | } |
| pmic | 63:5726064028ca | 54 | |
| pmic | 63:5726064028ca | 55 |