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
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/*
* Copyright © Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 or 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MIR_TEST_FRAMEWORK_MMAP_WRAPPER_H_
#define MIR_TEST_FRAMEWORK_MMAP_WRAPPER_H_
#include <functional>
#include <memory>
#include <optional>
#include <sys/mman.h>
namespace mir_test_framework
{
using MmapHandlerHandle = std::unique_ptr<void, void(*)(void*)>;
using MmapHandler =
std::function<std::optional<void*>(void *addr, size_t length, int prot, int flags, int fd, off_t offset)>;
/**
* Add a function to the mmap() interposer.
*
* When code calls ::mmap() the test framework first checks against all of the registered
* handlers, returning the value from the first handler to return an occupied optional<void*>
*
* \note The new handler is added to the \em start of the handler chain; it will be called
* before any existing handler on mmap().
*
* \param handler [in] Handler to call when mmap() is called. The handler should return an
* occupied optional<void*> only when it wants to claim this invocation.
* \return An opaque handle to this instance of the handler. Dropping the handle unregisters the
* mmap() handler.
*/
MmapHandlerHandle add_mmap_handler(MmapHandler handler);
using MunmapHandlerHandle = std::unique_ptr<void, void(*)(void*)>;
using MunmapHandler =
std::function<std::optional<int>(void* addr, size_t length)>;
/**
* Add a function to the munmap() interposer.
*
* When code calls ::munmap() the test framework first checks against all of the registered
* handlers, returning the value from the first handler to return an occupied optional<int>
*
* \note The new handler is added to the \em start of the handler chain; it will be called
* before any existing handler on munmap().
*
* \param handler [in] Handler to call when munmap() is called. The handler should return an
* occupied optional<int> only when it wants to claim this invocation.
* \return An opaque handle to this instance of the handler. Dropping the handle unregisters the
* munmap() handler.
*/
MunmapHandlerHandle add_munmap_handler(MunmapHandler handler);
}
#endif //MIR_TEST_FRAMEWORK_MMAP_WRAPPER_H_
|
