From e9161cdcda9e5170f3ea5f18a8275395004ffce4 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Fri, 19 Aug 2022 17:50:55 +0200
Subject: kernel/proc: abstract away managing handles

---
 src/kernel/proc.h | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'src/kernel/proc.h')

diff --git a/src/kernel/proc.h b/src/kernel/proc.h
index e7946b2..4b256bd 100644
--- a/src/kernel/proc.h
+++ b/src/kernel/proc.h
@@ -48,7 +48,7 @@ struct process {
 	};
 
 	struct vfs_mount *mount;
-	struct handle *handles[HANDLE_MAX];
+	struct handle *_handles[HANDLE_MAX];
 	uint32_t id; /* only for debugging, don't expose to userland */
 	bool noreap;
 
@@ -84,5 +84,18 @@ struct process *process_next(struct process *);
 
 handle_t process_find_free_handle(struct process *proc, handle_t start_at);
 struct handle *process_handle_get(struct process *, handle_t);
+handle_t process_handle_init(struct process *, enum handle_type, struct handle **);
+handle_t process_handle_dup(struct process *p, handle_t from, handle_t to);
+static inline void process_handle_close(struct process *p, handle_t hid) {
+	// TODO test
+	process_handle_dup(p, -1, hid);
+}
+
+/* Gets a handle and removes the process' reference to it, without decreasing the refcount.
+ * Meant to be used together with process_handle_put. */
+struct handle *process_handle_take(struct process *, handle_t);
+/* Put a handle in a process, taking the ownership away from the caller.
+ * Doesn't increase the refcount on success, decreases it on failure. */
+handle_t process_handle_put(struct process *, struct handle *);
 
 void process_transition(struct process *, enum process_state);
-- 
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