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-rw-r--r--Kernel/Process.h9
-rw-r--r--Kernel/ProcessGroup.cpp14
-rw-r--r--Kernel/ProcessGroup.h7
-rw-r--r--Kernel/Syscalls/fork.cpp4
-rw-r--r--Kernel/Syscalls/setpgid.cpp6
-rw-r--r--Kernel/Syscalls/waitid.cpp4
-rw-r--r--Kernel/TTY/TTY.cpp2
-rw-r--r--Kernel/Thread.h4
-rw-r--r--Kernel/ThreadBlockers.cpp4
9 files changed, 31 insertions, 23 deletions
diff --git a/Kernel/Process.h b/Kernel/Process.h
index 7f3188bfdc..9a8448a48d 100644
--- a/Kernel/Process.h
+++ b/Kernel/Process.h
@@ -236,7 +236,10 @@ public:
return with_protected_data([](auto& protected_data) { return protected_data.sid; });
}
bool is_session_leader() const { return sid().value() == pid().value(); }
- ProcessGroupID pgid() const { return m_pg ? m_pg->pgid() : 0; }
+ ProcessGroupID pgid() const
+ {
+ return m_pg.with([&](auto& pg) { return pg ? pg->pgid() : 0; });
+ }
bool is_group_leader() const { return pgid().value() == pid().value(); }
ProcessID ppid() const
{
@@ -622,7 +625,7 @@ private:
ErrorOr<void> do_killall(int signal);
ErrorOr<void> do_killself(int signal);
- ErrorOr<siginfo_t> do_waitid(Variant<Empty, NonnullRefPtr<Process>, NonnullLockRefPtr<ProcessGroup>> waitee, int options);
+ ErrorOr<siginfo_t> do_waitid(Variant<Empty, NonnullRefPtr<Process>, NonnullRefPtr<ProcessGroup>> waitee, int options);
static ErrorOr<NonnullOwnPtr<KString>> get_syscall_path_argument(Userspace<char const*> user_path, size_t path_length);
static ErrorOr<NonnullOwnPtr<KString>> get_syscall_path_argument(Syscall::StringArgument const&);
@@ -674,7 +677,7 @@ private:
SpinlockProtected<OwnPtr<Memory::AddressSpace>, LockRank::None> m_space;
- LockRefPtr<ProcessGroup> m_pg;
+ SpinlockProtected<RefPtr<ProcessGroup>, LockRank::None> m_pg;
RecursiveSpinlock<LockRank::None> mutable m_protected_data_lock;
AtomicEdgeAction<u32> m_protected_data_refs;
diff --git a/Kernel/ProcessGroup.cpp b/Kernel/ProcessGroup.cpp
index f86b7c1473..be7b389663 100644
--- a/Kernel/ProcessGroup.cpp
+++ b/Kernel/ProcessGroup.cpp
@@ -24,31 +24,31 @@ ProcessGroup::~ProcessGroup()
});
}
-ErrorOr<NonnullLockRefPtr<ProcessGroup>> ProcessGroup::try_create(ProcessGroupID pgid)
+ErrorOr<NonnullRefPtr<ProcessGroup>> ProcessGroup::create(ProcessGroupID pgid)
{
- auto process_group = TRY(adopt_nonnull_lock_ref_or_enomem(new (nothrow) ProcessGroup(pgid)));
+ auto process_group = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) ProcessGroup(pgid)));
process_groups().with([&](auto& groups) {
groups.prepend(*process_group);
});
return process_group;
}
-ErrorOr<NonnullLockRefPtr<ProcessGroup>> ProcessGroup::try_find_or_create(ProcessGroupID pgid)
+ErrorOr<NonnullRefPtr<ProcessGroup>> ProcessGroup::find_or_create(ProcessGroupID pgid)
{
- return process_groups().with([&](auto& groups) -> ErrorOr<NonnullLockRefPtr<ProcessGroup>> {
+ return process_groups().with([&](auto& groups) -> ErrorOr<NonnullRefPtr<ProcessGroup>> {
for (auto& group : groups) {
if (group.pgid() == pgid)
return group;
}
- auto process_group = TRY(adopt_nonnull_lock_ref_or_enomem(new (nothrow) ProcessGroup(pgid)));
+ auto process_group = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) ProcessGroup(pgid)));
groups.prepend(*process_group);
return process_group;
});
}
-LockRefPtr<ProcessGroup> ProcessGroup::from_pgid(ProcessGroupID pgid)
+RefPtr<ProcessGroup> ProcessGroup::from_pgid(ProcessGroupID pgid)
{
- return process_groups().with([&](auto& groups) -> LockRefPtr<ProcessGroup> {
+ return process_groups().with([&](auto& groups) -> RefPtr<ProcessGroup> {
for (auto& group : groups) {
if (group.pgid() == pgid)
return &group;
diff --git a/Kernel/ProcessGroup.h b/Kernel/ProcessGroup.h
index 69a52d2cb3..217316347c 100644
--- a/Kernel/ProcessGroup.h
+++ b/Kernel/ProcessGroup.h
@@ -8,6 +8,7 @@
#include <AK/AtomicRefCounted.h>
#include <AK/IntrusiveList.h>
+#include <AK/RefPtr.h>
#include <Kernel/Forward.h>
#include <Kernel/Library/LockWeakable.h>
#include <Kernel/Locking/SpinlockProtected.h>
@@ -25,9 +26,9 @@ class ProcessGroup
public:
~ProcessGroup();
- static ErrorOr<NonnullLockRefPtr<ProcessGroup>> try_create(ProcessGroupID);
- static ErrorOr<NonnullLockRefPtr<ProcessGroup>> try_find_or_create(ProcessGroupID);
- static LockRefPtr<ProcessGroup> from_pgid(ProcessGroupID);
+ static ErrorOr<NonnullRefPtr<ProcessGroup>> create(ProcessGroupID);
+ static ErrorOr<NonnullRefPtr<ProcessGroup>> find_or_create(ProcessGroupID);
+ static RefPtr<ProcessGroup> from_pgid(ProcessGroupID);
ProcessGroupID const& pgid() const { return m_pgid; }
diff --git a/Kernel/Syscalls/fork.cpp b/Kernel/Syscalls/fork.cpp
index cf1ee14fdf..ad4f716a0c 100644
--- a/Kernel/Syscalls/fork.cpp
+++ b/Kernel/Syscalls/fork.cpp
@@ -96,7 +96,9 @@ ErrorOr<FlatPtr> Process::sys$fork(RegisterState& regs)
});
}));
- child->m_pg = m_pg;
+ child->m_pg.with([&](auto& child_pg) {
+ child_pg = m_pg.with([&](auto& pg) { return pg; });
+ });
with_protected_data([&](auto& my_protected_data) {
child->with_mutable_protected_data([&](auto& child_protected_data) {
diff --git a/Kernel/Syscalls/setpgid.cpp b/Kernel/Syscalls/setpgid.cpp
index 01c6fdb459..96b5da049a 100644
--- a/Kernel/Syscalls/setpgid.cpp
+++ b/Kernel/Syscalls/setpgid.cpp
@@ -38,7 +38,8 @@ ErrorOr<FlatPtr> Process::sys$setsid()
return EPERM;
// Create a new Session and a new ProcessGroup.
- m_pg = TRY(ProcessGroup::try_create(ProcessGroupID(pid().value())));
+ auto process_group = TRY(ProcessGroup::create(ProcessGroupID(pid().value())));
+ m_pg.with([&](auto& pg) { pg = move(process_group); });
m_tty = nullptr;
return with_mutable_protected_data([&](auto& protected_data) -> ErrorOr<FlatPtr> {
protected_data.sid = pid().value();
@@ -119,7 +120,8 @@ ErrorOr<FlatPtr> Process::sys$setpgid(pid_t specified_pid, pid_t specified_pgid)
return EPERM;
}
// FIXME: There are more EPERM conditions to check for here..
- process->m_pg = TRY(ProcessGroup::try_find_or_create(new_pgid));
+ auto process_group = TRY(ProcessGroup::find_or_create(new_pgid));
+ process->m_pg.with([&](auto& pg) { pg = move(process_group); });
return with_mutable_protected_data([&](auto& protected_data) -> ErrorOr<FlatPtr> {
auto credentials = this->credentials();
diff --git a/Kernel/Syscalls/waitid.cpp b/Kernel/Syscalls/waitid.cpp
index 8e13825189..8a5e08313d 100644
--- a/Kernel/Syscalls/waitid.cpp
+++ b/Kernel/Syscalls/waitid.cpp
@@ -10,7 +10,7 @@
namespace Kernel {
-ErrorOr<siginfo_t> Process::do_waitid(Variant<Empty, NonnullRefPtr<Process>, NonnullLockRefPtr<ProcessGroup>> waitee, int options)
+ErrorOr<siginfo_t> Process::do_waitid(Variant<Empty, NonnullRefPtr<Process>, NonnullRefPtr<ProcessGroup>> waitee, int options)
{
ErrorOr<siginfo_t> result = siginfo_t {};
if (Thread::current()->block<Thread::WaitBlocker>({}, options, move(waitee), result).was_interrupted())
@@ -25,7 +25,7 @@ ErrorOr<FlatPtr> Process::sys$waitid(Userspace<Syscall::SC_waitid_params const*>
TRY(require_promise(Pledge::proc));
auto params = TRY(copy_typed_from_user(user_params));
- Variant<Empty, NonnullRefPtr<Process>, NonnullLockRefPtr<ProcessGroup>> waitee;
+ Variant<Empty, NonnullRefPtr<Process>, NonnullRefPtr<ProcessGroup>> waitee;
switch (params.idtype) {
case P_ALL:
break;
diff --git a/Kernel/TTY/TTY.cpp b/Kernel/TTY/TTY.cpp
index 77da82f96e..90882d0f82 100644
--- a/Kernel/TTY/TTY.cpp
+++ b/Kernel/TTY/TTY.cpp
@@ -500,7 +500,7 @@ ErrorOr<void> TTY::ioctl(OpenFileDescription&, unsigned request, Userspace<void*
return EPERM;
if (process && pgid != process->pgid())
return EPERM;
- m_pg = process_group;
+ m_pg = TRY(process_group->try_make_weak_ptr());
if (process) {
if (auto parent = Process::from_pid_ignoring_jails(process->ppid())) {
diff --git a/Kernel/Thread.h b/Kernel/Thread.h
index 69b0e3b30f..ae48eba786 100644
--- a/Kernel/Thread.h
+++ b/Kernel/Thread.h
@@ -644,7 +644,7 @@ public:
Disowned
};
- WaitBlocker(int wait_options, Variant<Empty, NonnullRefPtr<Process>, NonnullLockRefPtr<ProcessGroup>> waitee, ErrorOr<siginfo_t>& result);
+ WaitBlocker(int wait_options, Variant<Empty, NonnullRefPtr<Process>, NonnullRefPtr<ProcessGroup>> waitee, ErrorOr<siginfo_t>& result);
virtual StringView state_string() const override { return "Waiting"sv; }
virtual Type blocker_type() const override { return Type::Wait; }
virtual void will_unblock_immediately_without_blocking(UnblockImmediatelyReason) override;
@@ -660,7 +660,7 @@ public:
int const m_wait_options;
ErrorOr<siginfo_t>& m_result;
- Variant<Empty, NonnullRefPtr<Process>, NonnullLockRefPtr<ProcessGroup>> const m_waitee;
+ Variant<Empty, NonnullRefPtr<Process>, NonnullRefPtr<ProcessGroup>> const m_waitee;
bool m_did_unblock { false };
bool m_got_sigchild { false };
};
diff --git a/Kernel/ThreadBlockers.cpp b/Kernel/ThreadBlockers.cpp
index c88df1539e..3035701d04 100644
--- a/Kernel/ThreadBlockers.cpp
+++ b/Kernel/ThreadBlockers.cpp
@@ -663,7 +663,7 @@ void Thread::WaitBlockerSet::finalize()
}
}
-Thread::WaitBlocker::WaitBlocker(int wait_options, Variant<Empty, NonnullRefPtr<Process>, NonnullLockRefPtr<ProcessGroup>> waitee, ErrorOr<siginfo_t>& result)
+Thread::WaitBlocker::WaitBlocker(int wait_options, Variant<Empty, NonnullRefPtr<Process>, NonnullRefPtr<ProcessGroup>> waitee, ErrorOr<siginfo_t>& result)
: m_wait_options(wait_options)
, m_result(result)
, m_waitee(move(waitee))
@@ -734,7 +734,7 @@ bool Thread::WaitBlocker::unblock(Process& process, UnblockFlags flags, u8 signa
[&](NonnullRefPtr<Process> const& waitee_process) {
return &process != waitee_process;
},
- [&](NonnullLockRefPtr<ProcessGroup> const& waitee_process_group) {
+ [&](NonnullRefPtr<ProcessGroup> const& waitee_process_group) {
return waitee_process_group->pgid() != process.pgid();
},
[&](Empty const&) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 23:41:05 +0000