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Kernel: Implement SYS_SYNC and add sync executable to userspace

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You can (and have to) manually sync disk after writes to it.
This commit is contained in:
Bananymous
2023-09-11 01:26:27 +03:00
parent eee0537053
commit 63dc2b6aa6
14 changed files with 84 additions and 3 deletions
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15
kernel/kernel/FS/DevFS/FileSystem.cpp
View File

@@ -44,6 +44,7 @@ namespace Kernel
{
if (inode->is_device())
((Device*)inode.ptr())->update();
return BAN::Iteration::Continue;
}
);
s_instance->m_device_lock.unlock();
@@ -60,8 +61,22 @@ namespace Kernel
MUST(reinterpret_cast<RamDirectoryInode*>(root_inode().ptr())->add_inode(path, device));
}
void DevFileSystem::for_each_device(const BAN::Function<BAN::Iteration(Device*)>& callback)
{
LockGuard _(m_device_lock);
for_each_inode(
[&](BAN::RefPtr<Kernel::RamInode> inode)
{
if (!inode->is_device())
return BAN::Iteration::Continue;
return callback((Device*)inode.ptr());
}
);
}
dev_t DevFileSystem::get_next_dev()
{
LockGuard _(m_device_lock);
static dev_t next_dev = 1;
return next_dev++;
}

11
kernel/kernel/FS/RamFS/FileSystem.cpp
View File

@@ -48,11 +48,18 @@ namespace Kernel
return m_inodes[ino];
}
void RamFileSystem::for_each_inode(void (*callback)(BAN::RefPtr<RamInode>))
void RamFileSystem::for_each_inode(const BAN::Function<BAN::Iteration(BAN::RefPtr<RamInode>)>& callback)
{
LockGuard _(m_lock);
for (auto& [_, inode] : m_inodes)
callback(inode);
{
auto decision = callback(inode);
if (decision == BAN::Iteration::Break)
break;
if (decision == BAN::Iteration::Continue)
continue;
ASSERT_NOT_REACHED();
}
}
}