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Kernel: Rework all signal code

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Signal handling code was way too complex. Now everything is
simplified and there is no need for ThreadBlockers.

Only complication that this patch includes is that blocking syscalls
have to manually be made interruptable by signal. There might be some
clever solution to combat this is make this happen automatically.
This commit is contained in:
Bananymous
2023-12-06 13:02:17 +02:00
parent cdcc36efde
commit 1c78671078
10 changed files with 61 additions and 138 deletions
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6
kernel/kernel/Storage/StorageDevice.cpp
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@@ -225,7 +225,6 @@ namespace Kernel
{
LockGuard _(m_lock);
Thread::TerminateBlocker blocker(Thread::current());
if (!m_disk_cache.has_value())
return read_sectors_impl(lba, sector_count, buffer);
}
@@ -233,8 +232,6 @@ namespace Kernel
for (uint64_t offset = 0; offset < sector_count; offset++)
{
LockGuard _(m_lock);
Thread::TerminateBlocker blocker(Thread::current());
auto sector_buffer = buffer.slice(offset * sector_size(), sector_size());
if (m_disk_cache->read_from_cache(lba + offset, sector_buffer))
continue;
@@ -251,7 +248,6 @@ namespace Kernel
{
LockGuard _(m_lock);
Thread::TerminateBlocker blocker(Thread::current());
if (!m_disk_cache.has_value())
return write_sectors_impl(lba, sector_count, buffer);
}
@@ -259,8 +255,6 @@ namespace Kernel
for (uint8_t offset = 0; offset < sector_count; offset++)
{
LockGuard _(m_lock);
Thread::TerminateBlocker blocker(Thread::current());
auto sector_buffer = buffer.slice(offset * sector_size(), sector_size());
if (m_disk_cache->write_to_cache(lba + offset, sector_buffer, true).is_error())
TRY(write_sectors_impl(lba + offset, 1, sector_buffer));