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authorMichael I. Bushnell <mib@gnu.org>1995-11-30 20:49:50 +0000
committerMichael I. Bushnell <mib@gnu.org>1995-11-30 20:49:50 +0000
commit4f1f193f50d77b9e84939da70bd8c2cd37f9b5bc (patch)
tree62a55d687382c112a8b1bb64270c378573aeaa12 /term/devio.c
parent928dfec08112be5221e4165c80fb0f5e7c99ba11 (diff)
(ports_do_mach_notify_send_once): New function.
Diffstat (limited to 'term/devio.c')
-rw-r--r--term/devio.c58
1 files changed, 57 insertions, 1 deletions
diff --git a/term/devio.c b/term/devio.c
index 4abb3282..f54b1ecc 100644
--- a/term/devio.c
+++ b/term/devio.c
@@ -59,7 +59,8 @@ static int npending_output;
static struct port_class *phys_reply_class;
/* The Mach device_t representing the terminal. */
-static device_t phys_device = MACH_PORT_NULL;
+/* XXX static */
+device_t phys_device = MACH_PORT_NULL;
/* The ports we get replies on for device calls. */
static mach_port_t phys_reply_writes = MACH_PORT_NULL;
@@ -553,3 +554,58 @@ device_write_reply (mach_port_t replyport,
{
return EOPNOTSUPP;
}
+
+error_t
+ports_do_mach_notify_send_once (mach_port_t notify)
+{
+ error_t err;
+
+ mutex_lock (&global_lock);
+
+ if (notify == phys_reply_writes)
+ {
+ err = 0;
+ start_output ();
+ }
+ else if (notify == phys_reply)
+ {
+ if (input_pending)
+ {
+ /* xxx */
+ char msg[] = "Term input check happened\r\n";
+ device_write_inband (phys_device, 0, 0, msg, sizeof msg);
+ /* end xxx */
+
+ input_pending = 0;
+
+ err = device_read_request_inband (phys_device, phys_reply,
+ D_NOWAIT, 0, vm_page_size);
+ if (err)
+ desert_dtr ();
+ else
+ input_pending = 1;
+ }
+ else if (open_pending)
+ {
+ open_pending = 0;
+
+ report_carrier_on ();
+ report_carrier_off ();
+
+ mach_port_deallocate (mach_task_self (), phys_reply);
+ phys_reply = MACH_PORT_NULL;
+ ports_port_deref (phys_reply_pi);
+ phys_reply_pi = 0;
+ }
+ err = 0;
+ }
+ else
+ err = EOPNOTSUPP;
+
+ mutex_unlock (&global_lock);
+ return err;
+}
+
+
+
+