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-rw-r--r--mach/msg-destroy.c100
1 files changed, 95 insertions, 5 deletions
diff --git a/mach/msg-destroy.c b/mach/msg-destroy.c
index 1e618df..9ecbdc0 100644
--- a/mach/msg-destroy.c
+++ b/mach/msg-destroy.c
@@ -26,6 +26,15 @@
/*
* HISTORY
* $Log$
+ * Revision 1.6 2002/02/17 07:13:36 roland
+ * 2002-02-16 Roland McGrath <roland@frob.com>
+ *
+ * * mach/msg-destroy.c (__mach_msg_destroy) [MACH_MSG_PORT_DESCRIPTOR]:
+ * Grok the OSF flavor of message format.
+ * (mach_msg_destroy_port): For MAKE_SEND and
+ * MAKE_SEND_ONCE rights, create an destroy a right to ensure proper
+ * no-senders notification.
+ *
* Revision 1.5 1997/06/21 01:40:07 drepper
* More 64bit changes.
*
@@ -91,6 +100,69 @@ __mach_msg_destroy(msg)
mach_msg_destroy_port(msg->msgh_remote_port, MACH_MSGH_BITS_REMOTE(mbits));
if (mbits & MACH_MSGH_BITS_COMPLEX) {
+#ifdef MACH_MSG_PORT_DESCRIPTOR
+ mach_msg_body_t *body;
+ mach_msg_descriptor_t *saddr, *eaddr;
+
+ body = (mach_msg_body_t *) (msg + 1);
+ saddr = (mach_msg_descriptor_t *)
+ ((mach_msg_base_t *) msg + 1);
+ eaddr = saddr + body->msgh_descriptor_count;
+
+ for ( ; saddr < eaddr; saddr++) {
+ switch (saddr->type.type) {
+
+ case MACH_MSG_PORT_DESCRIPTOR: {
+ mach_msg_port_descriptor_t *dsc;
+
+ /*
+ * Destroy port rights carried in the message
+ */
+ dsc = &saddr->port;
+ mach_msg_destroy_port(dsc->name, dsc->disposition);
+ break;
+ }
+
+ case MACH_MSG_OOL_DESCRIPTOR : {
+ mach_msg_ool_descriptor_t *dsc;
+
+ /*
+ * Destroy memory carried in the message
+ */
+ dsc = &saddr->out_of_line;
+ if (dsc->deallocate) {
+ mach_msg_destroy_memory((vm_offset_t)dsc->address,
+ dsc->size);
+ }
+ break;
+ }
+
+ case MACH_MSG_OOL_PORTS_DESCRIPTOR : {
+ mach_port_t *ports;
+ mach_msg_ool_ports_descriptor_t *dsc;
+ mach_msg_type_number_t j;
+
+ /*
+ * Destroy port rights carried in the message
+ */
+ dsc = &saddr->ool_ports;
+ ports = (mach_port_t *) dsc->address;
+ for (j = 0; j < dsc->count; j++, ports++) {
+ mach_msg_destroy_port(*ports, dsc->disposition);
+ }
+
+ /*
+ * Destroy memory carried in the message
+ */
+ if (dsc->deallocate) {
+ mach_msg_destroy_memory((vm_offset_t)dsc->address,
+ dsc->count * sizeof(mach_port_t));
+ }
+ break;
+ }
+ }
+ }
+#else
vm_offset_t saddr;
vm_offset_t eaddr;
@@ -142,6 +214,7 @@ __mach_msg_destroy(msg)
saddr += sizeof(vm_offset_t);
}
}
+#endif
}
}
@@ -153,15 +226,32 @@ mach_msg_destroy_port(port, type)
mach_msg_type_name_t type;
{
if (MACH_PORT_VALID(port)) switch (type) {
- case MACH_MSG_TYPE_PORT_SEND:
- case MACH_MSG_TYPE_PORT_SEND_ONCE:
- (void) __mach_port_deallocate(__mach_task_self(), port);
+ case MACH_MSG_TYPE_MOVE_SEND:
+ case MACH_MSG_TYPE_MOVE_SEND_ONCE:
+ /* destroy the send/send-once right */
+ (void) __mach_port_deallocate(mach_task_self(), port);
break;
- case MACH_MSG_TYPE_PORT_RECEIVE:
- (void) __mach_port_mod_refs(__mach_task_self(), port,
+ case MACH_MSG_TYPE_MOVE_RECEIVE:
+ /* destroy the receive right */
+ (void) __mach_port_mod_refs(mach_task_self(), port,
MACH_PORT_RIGHT_RECEIVE, -1);
break;
+
+ case MACH_MSG_TYPE_MAKE_SEND:
+ /* create a send right and then destroy it */
+ (void) __mach_port_insert_right(mach_task_self(), port,
+ port, MACH_MSG_TYPE_MAKE_SEND);
+ (void) __mach_port_deallocate(mach_task_self(), port);
+ break;
+
+ case MACH_MSG_TYPE_MAKE_SEND_ONCE:
+ /* create a send-once right and then destroy it */
+ (void) __mach_port_extract_right(mach_task_self(), port,
+ MACH_MSG_TYPE_MAKE_SEND_ONCE,
+ &port, &type);
+ (void) __mach_port_deallocate(mach_task_self(), port);
+ break;
}
}