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Kernel: Switch singletons to use new Singleton class

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MemoryManager cannot use the Singleton class because
MemoryManager::initialize is called before the global constructors
are run. That caused the Singleton to be re-initialized, causing
it to create another MemoryManager instance.

Fixes #3226
This commit is contained in:
Tom 2020-08-24 19:35:19 -06:00 • committed by Andreas Kling
parent ba6e4fb77f
commit d89582880e
46 changed files with 221 additions and 170 deletions
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12
Kernel/Console.cpp
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@ -24,6 +24,7 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/Singleton.h>
#include <Kernel/Console.h>
#include <Kernel/IO.h>
#include <Kernel/kstdio.h>
@ -32,24 +33,27 @@
// Bytes output to 0xE9 end up on the Bochs console. It's very handy.
#define CONSOLE_OUT_TO_E9
static Console* s_the;
static AK::Singleton<Console> s_the;
static Kernel::SpinLock g_console_lock;
void Console::initialize()
{
s_the.ensure_instance();
}
Console& Console::the()
{
ASSERT(s_the);
return *s_the;
}
bool Console::is_initialized()
{
return s_the != nullptr;
return s_the.is_initialized();
}
Console::Console()
: CharacterDevice(5, 1)
{
s_the = this;
}
Console::~Console()