Message passing / mail system

kernel/proc/mail.h

@@ -0,0 +1,26 @@
+#ifndef _KERNEL_PROC_MAIL_H
+#define _KERNEL_PROC_MAIL_H
+
+#include <libk/std.h>
+#include <proc/suspension_q.h>
+
+struct proc;
+struct proc_resource;
+struct cpu;
+
+struct proc_mail {
+  struct proc_resource* resource;
+
+  struct proc_suspension_q send_sq;
+  struct proc_suspension_q recv_sq;
+  void* pending_mesg;
+  size_t pending_mesg_size;
+};
+
+bool proc_cleanup_resource_mail (struct proc_resource* resource, struct cpu** reschedule_cpu);
+bool proc_mail_send (struct proc* proc, struct proc_mail* mail, struct cpu** reschedule_cpu,
+                     void* data, size_t data_size);
+bool proc_mail_receive (struct proc* proc, struct proc_mail* mail, struct cpu** reschedule_cpu,
+                        void* recv_buffer, size_t recv_size);
+
+#endif // _KERNEL_PROC_MAIL_H