Organize resources into process groups

kernel/proc/procgroup.h

@@ -0,0 +1,38 @@
+#ifndef _KERNEL_PROC_PROCGROUP_H
+#define _KERNEL_PROC_PROCGROUP_H
+
+#include <libk/list.h>
+#include <libk/rbtree.h>
+#include <libk/std.h>
+#include <proc/resource.h>
+#include <sync/spin_lock.h>
+#include <sys/mm.h>
+
+struct proc;
+
+struct proc_mapping {
+  struct list_node_link proc_mappings_link;
+
+  uintptr_t paddr;
+  uintptr_t vaddr;
+  size_t size;
+};
+
+struct procgroup {
+  int pgid;
+  struct rb_node_link procgroup_tree_link;
+  struct rb_node_link* memb_proc_tree;
+  spin_lock_t lock;
+  atomic_int refs;
+  struct rb_node_link* resource_tree;
+  atomic_int sys_rids;
+  struct pd pd;
+  struct list_node_link* mappings; /* protected by pd.lock */
+};
+
+struct procgroup* procgroup_create (void);
+void procgroup_attach (struct procgroup* procgroup, struct proc* proc);
+void procgroup_detach (struct procgroup* procgroup, struct proc* proc);
+int procgroup_get_sys_rid (struct procgroup* procgroup);
+
+#endif // _KERNEL_PROC_PROCGROUP_H