banan-os/kernel/kernel/FS/ProcFS/FileSystem.cpp

47 lines
1.1 KiB
C++

#include <kernel/FS/ProcFS/FileSystem.h>
#include <kernel/FS/ProcFS/Inode.h>
#include <kernel/FS/RamFS/Inode.h>
#include <kernel/LockGuard.h>
namespace Kernel
{
static ProcFileSystem* s_instance = nullptr;
void ProcFileSystem::initialize()
{
ASSERT(s_instance == nullptr);
s_instance = new ProcFileSystem(1024 * 1024);
ASSERT(s_instance);
s_instance->m_root_inode = MUST(RamDirectoryInode::create(*s_instance, 0, 0555, 0, 0));
MUST(s_instance->set_root_inode(s_instance->m_root_inode));
}
ProcFileSystem& ProcFileSystem::get()
{
ASSERT(s_instance);
return *s_instance;
}
ProcFileSystem::ProcFileSystem(size_t size)
: RamFileSystem(size)
{
}
BAN::ErrorOr<void> ProcFileSystem::on_process_create(Process& process)
{
auto path = BAN::String::formatted("{}", process.pid());
auto inode = TRY(ProcPidInode::create(process, *this, 0555, 0, 0));
TRY(m_root_inode->add_inode(path, inode));
return {};
}
void ProcFileSystem::on_process_delete(Process& process)
{
auto path = BAN::String::formatted("{}", process.pid());
MUST(m_root_inode->unlink(path));
}
}