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Kernel/LibC: Implement simple futex

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Bananymous
2025-08-05 00:07:17 +03:00
parent 658a001d91
commit 5940e912b3
6 changed files with 159 additions and 0 deletions
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9
kernel/include/kernel/Process.h
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@@ -189,6 +189,7 @@ namespace Kernel
BAN::ErrorOr<long> sys_sigpending(sigset_t* set);
BAN::ErrorOr<long> sys_sigprocmask(int how, const sigset_t* set, sigset_t* oset);
BAN::ErrorOr<long> sys_futex(int op, const uint32_t* addr, uint32_t val, const timespec* abstime);
BAN::ErrorOr<long> sys_yield();
BAN::ErrorOr<long> sys_set_tls(void*);
BAN::ErrorOr<long> sys_get_tls();
@@ -337,6 +338,14 @@ namespace Kernel
BAN::UniqPtr<PageTable> m_page_table;
BAN::RefPtr<TTY> m_controlling_terminal;
struct futex_t
{
ThreadBlocker blocker;
uint32_t waiters { 0 };
uint32_t to_wakeup { 0 };
};
BAN::HashMap<paddr_t, BAN::UniqPtr<futex_t>> m_futexes;
friend class Thread;
};