mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-12-28 13:43:45 +03:00
a098266ff5
- Instead of taking the first new thread as an out-parameter, we now bundle the process and its first thread in a struct and use that as the return value. - Make all Process factory functions return ErrorOr. Use this to convert some places to more TRY(). - Drop the "try_" prefix on Process factory functions.
67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
/*
|
|
* Copyright (c) 2021, the SerenityOS developers.
|
|
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <Kernel/Arch/Processor.h>
|
|
#include <Kernel/Process.h>
|
|
#include <Kernel/Sections.h>
|
|
#include <Kernel/WaitQueue.h>
|
|
#include <Kernel/WorkQueue.h>
|
|
|
|
namespace Kernel {
|
|
|
|
WorkQueue* g_io_work;
|
|
WorkQueue* g_ata_work;
|
|
|
|
UNMAP_AFTER_INIT void WorkQueue::initialize()
|
|
{
|
|
g_io_work = new WorkQueue("IO WorkQueue Task"sv);
|
|
g_ata_work = new WorkQueue("ATA WorkQueue Task"sv);
|
|
}
|
|
|
|
UNMAP_AFTER_INIT WorkQueue::WorkQueue(StringView name)
|
|
{
|
|
auto name_kstring = KString::try_create(name);
|
|
if (name_kstring.is_error())
|
|
TODO();
|
|
auto [_, thread] = Process::create_kernel_process(name_kstring.release_value(), [this] {
|
|
#if ARCH(AARCH64)
|
|
// FIXME: This function expects to be executed with interrupts disabled, however on
|
|
// aarch64 we spawn (kernel) threads with interrupts enabled, so we need to disable them.
|
|
// This code should be written in a way that it is able to be executed with interrupts enabled.
|
|
Processor::disable_interrupts();
|
|
#endif
|
|
|
|
for (;;) {
|
|
WorkItem* item;
|
|
bool have_more;
|
|
m_items.with([&](auto& items) {
|
|
item = items.take_first();
|
|
have_more = !items.is_empty();
|
|
});
|
|
if (item) {
|
|
item->function();
|
|
delete item;
|
|
|
|
if (have_more)
|
|
continue;
|
|
}
|
|
[[maybe_unused]] auto result = m_wait_queue.wait_on({});
|
|
}
|
|
}).release_value_but_fixme_should_propagate_errors();
|
|
m_thread = move(thread);
|
|
}
|
|
|
|
void WorkQueue::do_queue(WorkItem& item)
|
|
{
|
|
m_items.with([&](auto& items) {
|
|
items.append(item);
|
|
});
|
|
m_wait_queue.wake_one();
|
|
}
|
|
|
|
}
|