File: unlock.pass.cpp

package info (click to toggle)
libc%2B%2B 3.5-2
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd, stretch
  • size: 39,088 kB
  • ctags: 20,667
  • sloc: cpp: 365,451; ansic: 3,125; asm: 651; sh: 630; makefile: 66
file content (54 lines) | stat: -rw-r--r-- 1,051 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// <mutex>

// template <class Mutex> class unique_lock;

// void unlock();

#include <mutex>
#include <cassert>

bool unlock_called = false;

struct mutex
{
    void lock() {}
    void unlock() {unlock_called = true;}
};

mutex m;

int main()
{
    std::unique_lock<mutex> lk(m);
    lk.unlock();
    assert(unlock_called == true);
    assert(lk.owns_lock() == false);
    try
    {
        lk.unlock();
        assert(false);
    }
    catch (std::system_error& e)
    {
        assert(e.code().value() == EPERM);
    }
    lk.release();
    try
    {
        lk.unlock();
        assert(false);
    }
    catch (std::system_error& e)
    {
        assert(e.code().value() == EPERM);
    }
}