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import gdb-1999-09-13 snapshot

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This commit is contained in:
Jason Molenda
1999-09-13 21:40:00 +00:00
parent 59f2c4e703
commit cff3e48be7
24 changed files with 657 additions and 102 deletions
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37
gdb/event-loop.c
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@@ -122,6 +122,7 @@ static int async_handler_ready = 0;
static void create_file_handler PARAMS ((int, int, handler_func *, gdb_client_data));
static void invoke_async_signal_handler PARAMS ((void));
static void handle_file_event PARAMS ((int));
static int gdb_wait_for_event PARAMS ((void));
static int gdb_do_one_event PARAMS ((void));
static int check_async_ready PARAMS ((void));
@@ -164,6 +165,22 @@ async_queue_event (event_ptr, position)
}
}
/* Create a file event, to be enqueued in the event queue for
processing. The procedure associated to this event is always
handle_file_event, which will in turn invoke the one that was
associated to FD when it was registered with the event loop. */
gdb_event *
create_file_event (fd)
int fd;
{
gdb_event *file_event_ptr;
file_event_ptr = (gdb_event *) xmalloc (sizeof (gdb_event));
file_event_ptr->proc = handle_file_event;
file_event_ptr->fd = fd;
return (file_event_ptr);
}
/* Process one event.
The event can be the next one to be serviced in the event queue,
or an asynchronous event handler can be invoked in response to
@@ -439,11 +456,6 @@ delete_file_handler (fd)
if (file_ptr == NULL)
return;
/* Deactivate the file descriptor, by clearing its mask,
so that it will not fire again. */
file_ptr->mask = 0;
#ifdef HAVE_POLL
/* Create a new poll_fds array by copying every fd's information but the
one we want to get rid of. */
@@ -500,6 +512,11 @@ delete_file_handler (fd)
}
#endif /* HAVE_POLL */
/* Deactivate the file descriptor, by clearing its mask,
so that it will not fire again. */
file_ptr->mask = 0;
/* Get rid of the file handler in the file handler list. */
if (file_ptr == gdb_notifier.first_file_handler)
gdb_notifier.first_file_handler = file_ptr->next_file;
@@ -634,10 +651,7 @@ gdb_wait_for_event ()
this fd. */
if (file_ptr->ready_mask == 0)
{
file_event_ptr =
(gdb_event *) xmalloc (sizeof (gdb_event));
file_event_ptr->proc = handle_file_event;
file_event_ptr->fd = file_ptr->fd;
file_event_ptr = create_file_event (file_ptr->fd);
async_queue_event (file_event_ptr, TAIL);
}
}
@@ -671,10 +685,7 @@ gdb_wait_for_event ()
if (file_ptr->ready_mask == 0)
{
file_event_ptr =
(gdb_event *) xmalloc (sizeof (gdb_event));
file_event_ptr->proc = handle_file_event;
file_event_ptr->fd = file_ptr->fd;
file_event_ptr = create_file_event (file_ptr->fd);
async_queue_event (file_event_ptr, TAIL);
}
file_ptr->ready_mask = mask;