mirror of
https://github.com/Icinga/icinga2.git
synced 2026-05-13 01:19:10 -04:00
91c7e60df8
I've used the following command to replace the original copyright header
lines in a C-style comment block:
```
$ find . \( -type d \( -name '\..*' -o -name third-party -o -name scripts -o -name prefix -o -name malloc -o -name server -o -name docker -o -name build -o -name doc \) -prune \) -o -type f -exec perl -pi -e 's{/\*[^*]*\(\s*c\s*\)\s*(\d{4})\s*Icinga\s+GmbH[^*]*\*/}{// SPDX-FileCopyrightText: \1 Icinga GmbH <https://icinga.com>\n// SPDX-License-Identifier: GPL-2.0-or-later}gi' {} +
```
For files that use shell-style comments (#) like CMakeLists.txt, I've
used this command:
```
$ find . \( -type d \( -name '\..*' -o -name third-party -o -name scripts -o -name prefix -o -name malloc -o -name server -o -name docker -o -name build -o -name doc \) -prune \) -o -type f -exec perl -pi -e 's{#.*\(\s*c\s*\)\s(\d{4})\sIcinga\s+GmbH.*}{# SPDX-FileCopyrightText: \1 Icinga GmbH <https://icinga.com>\n# SPDX-License-Identifier: GPL-2.0-or-later}gi' {} +
```
And for SQL files:
```
$ find . \( -type d \( -name '\..*' -o -name third-party -o -name scripts -o -name prefix -o -name malloc -o -name server -o -name docker -o -name build -o -name doc \) -prune \) -o -type f \( -name '*.sql' \) -exec perl -pi -e 's{--.*\(c\)\s(\d{4})\sIcinga\sGmbH.*}{-- SPDX-FileCopyrightText: \1 Icinga GmbH <https://icinga.com>\n-- SPDX-License-Identifier: GPL-2.0-or-later}gi' {} +
$ find . \( -type d \( -name '\..*' -o -name third-party -o -name scripts -o -name prefix -o -name malloc -o -name server -o -name docker -o -name build -o -name doc \) -prune \) -o -type f \( -name '*.sql' \) -exec perl -pi -e 's{-- Copyright \(c\)\s(\d{4})\sIcinga\s+Development\sTeam.*}{-- SPDX-FileCopyrightText: \1 Icinga GmbH <https://icinga.com>\n-- SPDX-License-Identifier: GPL-2.0-or-later}gi' {} +
```
96 lines
1.8 KiB
C++
96 lines
1.8 KiB
C++
// SPDX-FileCopyrightText: 2012 Icinga GmbH <https://icinga.com>
|
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
#ifndef REGISTRY_H
|
|
#define REGISTRY_H
|
|
|
|
#include "base/i2-base.hpp"
|
|
#include "base/atomic.hpp"
|
|
#include "base/exception.hpp"
|
|
#include "base/string.hpp"
|
|
#include "base/singleton.hpp"
|
|
#include <shared_mutex>
|
|
#include <stdexcept>
|
|
#include <unordered_map>
|
|
#include <mutex>
|
|
|
|
namespace icinga
|
|
{
|
|
|
|
/**
|
|
* A registry.
|
|
*
|
|
* @ingroup base
|
|
*/
|
|
template<typename T>
|
|
class Registry
|
|
{
|
|
public:
|
|
typedef std::unordered_map<String, T> ItemMap;
|
|
|
|
static Registry* GetInstance()
|
|
{
|
|
return Singleton<Registry>::GetInstance();
|
|
}
|
|
|
|
void Register(const String& name, const T& item)
|
|
{
|
|
std::unique_lock lock (m_Mutex);
|
|
|
|
if (m_Frozen) {
|
|
BOOST_THROW_EXCEPTION(std::logic_error("Registry is read-only and must not be modified."));
|
|
}
|
|
|
|
m_Items[name] = item;
|
|
}
|
|
|
|
T GetItem(const String& name) const
|
|
{
|
|
auto lock (ReadLockUnlessFrozen());
|
|
|
|
auto it = m_Items.find(name);
|
|
|
|
if (it == m_Items.end())
|
|
return T();
|
|
|
|
return it->second;
|
|
}
|
|
|
|
ItemMap GetItems() const
|
|
{
|
|
auto lock (ReadLockUnlessFrozen());
|
|
|
|
return m_Items; /* Makes a copy of the map. */
|
|
}
|
|
|
|
/**
|
|
* Freeze the registry, preventing further updates.
|
|
*
|
|
* This only prevents inserting, replacing or deleting values from the registry.
|
|
* This operation has no effect on objects referenced by the values, these remain mutable if they were before.
|
|
*/
|
|
void Freeze()
|
|
{
|
|
std::unique_lock lock (m_Mutex);
|
|
|
|
m_Frozen.store(true);
|
|
}
|
|
|
|
private:
|
|
mutable std::shared_mutex m_Mutex;
|
|
Atomic<bool> m_Frozen {false};
|
|
ItemMap m_Items;
|
|
|
|
std::shared_lock<std::shared_mutex> ReadLockUnlessFrozen() const
|
|
{
|
|
if (m_Frozen.load(std::memory_order_relaxed)) {
|
|
return {};
|
|
}
|
|
|
|
return std::shared_lock(m_Mutex);
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
#endif /* REGISTRY_H */
|