add ipc send/recv mechanism for kernel objects.

1 files changed, 9 insertions, 2 deletions

diff --git a/proc/process.h b/proc/process.h
index 950f63e..21dbf8d 100644
--- a/proc/process.h
+++ b/proc/process.h
@@ -7,14 +7,14 @@
 
 struct pcb_mailbox
 {
-    jove_obj_t *obj;
+    jove_owned_obj_t *obj;
     pid_t pid;
 };
 
 struct pcb_header
 {
     struct rbtree_node tree_node;
-    struct pcb_header *sched_next;
+    struct pcb_header *sched_prev, *sched_next;
     size_t size;
 
     pid_t pid;
@@ -22,6 +22,7 @@ struct pcb_header
     
     enum pcb_state state;
     intmax_t state_code;
+    size_t block_until;
 
     struct pcb_mailbox send, recv;
 
@@ -42,6 +43,9 @@ jove_obj_t *pcb_getrootdir(pcb_t *pcb);
 jove_owned_obj_t *pcb_getpagedir(jove_owned_obj_t *rootdir_obj);
 jove_owned_obj_t *pcb_getself(jove_owned_obj_t *rootdir_obj);
 
+struct pcb_mailbox *pcb_getmail_send(pcb_t *pcb);
+struct pcb_mailbox *pcb_getmail_recv(pcb_t *pcb);
+
 enum pcb_state pcb_getstate(pcb_t *pcb);
 intmax_t pcb_getstatecode(pcb_t *pcb);
 
@@ -50,6 +54,9 @@ void **pcb_getksp_ref(pcb_t *pcb);
 
 pcb_t *pcb_frompid(pid_t pid);
 
+int pcb_send(pcb_t *pcb, pid_t target, jove_owned_obj_t *subject, size_t timeout);
+int pcb_recv(pcb_t *pcb, pid_t target, jove_owned_obj_t *dest_obj, size_t timeout);
+
 extern struct rbtree_node *pcb_tree;
 
 #endif