fergalmoran/ladybird
1
0
Fork 0
mirror of https://github.com/fergalmoran/ladybird.git synced 2025-12-27 03:37:53 +00:00
Code Issues Packages Projects Releases Wiki Activity

Kernel: Fail process creating earlier if can't create AddressSpace

Browse Source 
It makes more sense to fail the Process creation earlier if we can't
create an AddressSpace for the new Process.
This commit is contained in:
Liav A
2021-08-07 22:40:54 +03:00
committed by Andreas Kling
parent 01b79910b3
commit 04c2addaa8
2 changed files with 7 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
Kernel/Process.cpp
View File

@@ -229,10 +229,13 @@ void Process::unprotect_data()
RefPtr<Process> Process::create(RefPtr<Thread>& first_thread, const String& name, uid_t uid, gid_t gid, ProcessID ppid, bool is_kernel_process, RefPtr<Custody> cwd, RefPtr<Custody> executable, TTY* tty, Process* fork_parent)
{
auto space = Memory::AddressSpace::try_create(fork_parent ? &fork_parent->address_space() : nullptr);
if (!space)
return {};
auto process = adopt_ref_if_nonnull(new (nothrow) Process(name, uid, gid, ppid, is_kernel_process, move(cwd), move(executable), tty));
if (!process)
return {};
auto result = process->attach_resources(first_thread, fork_parent);
auto result = process->attach_resources(space.release_nonnull(), first_thread, fork_parent);
if (result.is_error())
return {};
return process;
@@ -261,12 +264,9 @@ Process::Process(const String& name, uid_t uid, gid_t gid, ProcessID ppid, bool
dbgln_if(PROCESS_DEBUG, "Created new process {}({})", m_name, this->pid().value());
}
KResult Process::attach_resources(RefPtr<Thread>& first_thread, Process* fork_parent)
KResult Process::attach_resources(NonnullOwnPtr<Memory::AddressSpace>&& preallocated_space, RefPtr<Thread>& first_thread, Process* fork_parent)
{
m_space = Memory::AddressSpace::try_create(fork_parent ? &fork_parent->address_space() : nullptr);
if (!m_space)
return ENOMEM;
m_space = move(preallocated_space);
if (fork_parent) {
// NOTE: fork() doesn't clone all threads; the thread that called fork() becomes the only thread in the new process.
first_thread = Thread::current()->clone(*this);