Kernel: Add API to block on semaphore until unblock or EINTR

2023-12-06 16:13:07 +02:00
parent 534969df32
commit 1ac831d4b1
2 changed files with 11 additions and 0 deletions
--- a/kernel/include/kernel/Thread.h
+++ b/kernel/include/kernel/Thread.h
@@ -47,6 +47,9 @@ namespace Kernel
 		void handle_signal(int signal = 0);
 		bool add_signal(int signal);

+		// blocks semaphore and returns either on unblock, eintr or spuriously
+		[[nodiscard]] bool block_or_eintr(Semaphore&);
+
 		void set_return_rsp(uintptr_t& rsp) { m_return_rsp = &rsp; }
 		void set_return_rip(uintptr_t& rip) { m_return_rip = &rip; }
 		uintptr_t return_rsp() { ASSERT(m_return_rsp); return *m_return_rsp; }