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Diffstat (limited to 'console/display.c')
-rw-r--r--console/display.c110
1 files changed, 60 insertions, 50 deletions
diff --git a/console/display.c b/console/display.c
index e807c50f..97e16264 100644
--- a/console/display.c
+++ b/console/display.c
@@ -29,7 +29,7 @@
#include <assert.h>
#include <error.h>
-#include <cthreads.h>
+#include <pthread.h>
#include <hurd.h>
#include <hurd/ports.h>
@@ -119,7 +119,7 @@ struct output
multi-byte or composed character at the end of the buffer, so we
have to keep them around. */
int stopped;
- struct condition resumed;
+ pthread_cond_t resumed;
char *buffer;
size_t allocated;
size_t size;
@@ -159,7 +159,7 @@ struct notify
struct display
{
/* The lock for the virtual console display structure. */
- struct mutex lock;
+ pthread_mutex_t lock;
/* Indicates if OWNER_ID is initialized. */
int has_owner;
@@ -339,7 +339,7 @@ do_mach_notify_dead_name (mach_port_t notify, mach_port_t dead_name)
return EOPNOTSUPP;
display = notify_port->display;
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
/* Find request in pending queue. */
preq = &display->filemod_reqs_pending;
@@ -361,7 +361,7 @@ do_mach_notify_dead_name (mach_port_t notify, mach_port_t dead_name)
mach_port_deallocate (mach_task_self (), req->port);
free (req);
}
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
/* Drop gratuitous extra reference that the notification creates. */
mach_port_deallocate (mach_task_self (), dead_name);
@@ -406,7 +406,7 @@ do_mach_notify_msg_accepted (mach_port_t notify, mach_port_t send)
}
display = notify_port->display;
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
/* Find request in pending queue. */
preq = &display->filemod_reqs_pending;
while (*preq && (*preq)->port != send)
@@ -417,7 +417,7 @@ do_mach_notify_msg_accepted (mach_port_t notify, mach_port_t send)
if (! *preq)
{
assert(0);
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
ports_port_deref (notify_port);
return 0;
}
@@ -435,7 +435,7 @@ do_mach_notify_msg_accepted (mach_port_t notify, mach_port_t send)
{
mach_port_t old;
*preq = req->next;
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
/* Cancel the dead-name notification. */
mach_port_request_notification (mach_task_self (), req->port,
@@ -451,7 +451,7 @@ do_mach_notify_msg_accepted (mach_port_t notify, mach_port_t send)
}
if (err == MACH_SEND_WILL_NOTIFY)
{
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
return 0;
}
/* The message was successfully queued, fall through. */
@@ -461,15 +461,15 @@ do_mach_notify_msg_accepted (mach_port_t notify, mach_port_t send)
/* Insert request into active queue. */
req->next = display->filemod_reqs;
display->filemod_reqs = req;
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
ports_port_deref (notify_port);
return 0;
}
/* A top-level function for the notification thread that just services
notification messages. */
-static void
-service_notifications (any_t arg)
+static void *
+service_notifications (void *arg)
{
struct port_bucket *notify_bucket = arg;
extern int notify_server (mach_msg_header_t *inp, mach_msg_header_t *outp);
@@ -478,6 +478,7 @@ service_notifications (any_t arg)
ports_manage_port_operations_one_thread (notify_bucket,
notify_server,
1000 * 60 * 10);
+ return NULL;
}
error_t
@@ -488,19 +489,19 @@ display_notice_changes (display_t display, mach_port_t notify)
mach_port_t notify_port;
mach_port_t old;
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
err = nowait_file_changed (notify, 0, FILE_CHANGED_NULL, 0, 0,
MACH_PORT_NULL);
if (err)
{
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
return err;
}
req = malloc (sizeof (struct modreq));
if (!req)
{
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
return errno;
}
@@ -514,7 +515,7 @@ display_notice_changes (display_t display, mach_port_t notify)
if (err)
{
free (req);
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
return err;
}
assert (old == MACH_PORT_NULL);
@@ -523,7 +524,7 @@ display_notice_changes (display_t display, mach_port_t notify)
req->pending = 0;
req->next = display->filemod_reqs;
display->filemod_reqs = req;
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
return 0;
}
@@ -924,7 +925,7 @@ screen_shift_right (display_t display, size_t col1, size_t row1, size_t col2,
static error_t
output_init (output_t output, const char *encoding)
{
- condition_init (&output->resumed);
+ pthread_cond_init (&output->resumed, NULL);
output->stopped = 0;
output->buffer = NULL;
output->allocated = 0;
@@ -1806,6 +1807,9 @@ void display_destroy_complete (void *pi);
void
display_init (void)
{
+ pthread_t thread;
+ error_t err;
+
user_pager_init ();
/* Create the notify bucket, and start to serve notifications. */
@@ -1816,8 +1820,14 @@ display_init (void)
if (! notify_class)
error (5, errno, "Cannot create notify class");
- cthread_detach (cthread_fork ((cthread_fn_t) service_notifications,
- (any_t) notify_bucket));
+ err = pthread_create (&thread, NULL, service_notifications, notify_bucket);
+ if (!err)
+ pthread_detach (thread);
+ else
+ {
+ errno = err;
+ perror ("pthread_create");
+ }
}
@@ -1845,7 +1855,7 @@ display_create (display_t *r_display, const char *encoding,
}
display->notify_port->display = display;
- mutex_init (&display->lock);
+ pthread_mutex_init (&display->lock, NULL);
display->attr.attr_def = def_attr;
display->attr.current = display->attr.attr_def;
display->csr.bottom = height - 1;
@@ -1875,7 +1885,7 @@ display_create (display_t *r_display, const char *encoding,
void
display_destroy (display_t display)
{
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
if (display->filemod_reqs_pending)
{
free_modreqs (display->filemod_reqs_pending);
@@ -1889,7 +1899,7 @@ display_destroy (display_t display)
ports_destroy_right (display->notify_port);
output_deinit (&display->output);
user_destroy (display);
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
/* We can not free the display structure here, because it might
still be needed by pending modification requests when msg
@@ -1923,12 +1933,12 @@ display_get_size (display_t display)
void
display_getsize (display_t display, struct winsize *winsize)
{
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
winsize->ws_row = display->user->screen.height;
winsize->ws_col = display->user->screen.width;
winsize->ws_xpixel = 0;
winsize->ws_ypixel = 0;
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
}
@@ -1937,10 +1947,10 @@ display_getsize (display_t display, struct winsize *winsize)
error_t
display_set_owner (display_t display, pid_t pid)
{
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
display->has_owner = 1;
display->owner_id = pid;
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
return 0;
}
@@ -1951,12 +1961,12 @@ error_t
display_get_owner (display_t display, pid_t *pid)
{
error_t err = 0;
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
if (!display->has_owner)
err = ENOTTY;
else
*pid = display->owner_id;
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
return err;
}
@@ -1994,18 +2004,18 @@ display_output (display_t display, int nonblock, char *data, size_t datalen)
return 0;
}
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
while (output->stopped)
{
if (nonblock)
{
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
errno = EWOULDBLOCK;
return -1;
}
- if (hurd_condition_wait (&output->resumed, &display->lock))
+ if (pthread_hurd_cond_wait_np (&output->resumed, &display->lock))
{
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
errno = EINTR;
return -1;
}
@@ -2016,7 +2026,7 @@ display_output (display_t display, int nonblock, char *data, size_t datalen)
err = ensure_output_buffer_size (output->size + datalen);
if (err)
{
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
errno = ENOMEM;
return -1;
}
@@ -2036,7 +2046,7 @@ display_output (display_t display, int nonblock, char *data, size_t datalen)
if (err && !amount)
{
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
errno = err;
return err;
}
@@ -2049,7 +2059,7 @@ display_output (display_t display, int nonblock, char *data, size_t datalen)
err = ensure_output_buffer_size (buffer_size);
if (err)
{
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
return err;
}
memmove (output->buffer, buffer, buffer_size);
@@ -2057,7 +2067,7 @@ display_output (display_t display, int nonblock, char *data, size_t datalen)
output->size = buffer_size;
amount += buffer_size;
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
return amount;
}
@@ -2066,9 +2076,9 @@ ssize_t
display_read (display_t display, int nonblock, off_t off,
char *data, size_t len)
{
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
memcpy (data, ((char *) display->user) + off, len);
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
return len;
}
@@ -2077,17 +2087,17 @@ display_read (display_t display, int nonblock, off_t off,
void
display_start_output (display_t display)
{
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
if (display->output.stopped)
{
display->output.stopped = 0;
- condition_broadcast (&display->output.resumed);
+ pthread_cond_broadcast (&display->output.resumed);
}
display->changes.flags = display->user->flags;
display->changes.which = DISPLAY_CHANGE_FLAGS;
display->user->flags &= ~CONS_FLAGS_SCROLL_LOCK;
display_flush_filechange (display, DISPLAY_CHANGE_FLAGS);
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
}
@@ -2095,13 +2105,13 @@ display_start_output (display_t display)
void
display_stop_output (display_t display)
{
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
display->output.stopped = 1;
display->changes.flags = display->user->flags;
display->changes.which = DISPLAY_CHANGE_FLAGS;
display->user->flags |= CONS_FLAGS_SCROLL_LOCK;
display_flush_filechange (display, DISPLAY_CHANGE_FLAGS);
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
}
@@ -2110,9 +2120,9 @@ size_t
display_pending_output (display_t display)
{
int output_size;
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
output_size = display->output.size;
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
return output_size;
}
@@ -2121,9 +2131,9 @@ display_pending_output (display_t display)
void
display_discard_output (display_t display)
{
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
display->output.size = 0;
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
}
@@ -2131,8 +2141,8 @@ mach_port_t
display_get_filemap (display_t display, vm_prot_t prot)
{
mach_port_t memobj;
- mutex_lock (&display->lock);
+ pthread_mutex_lock (&display->lock);
memobj = user_pager_get_filemap (&display->user_pager, prot);
- mutex_unlock (&display->lock);
+ pthread_mutex_unlock (&display->lock);
return memobj;
}