diff options
Diffstat (limited to 'contrib/gdb/gdb/event-loop.c')
| -rw-r--r-- | contrib/gdb/gdb/event-loop.c | 91 |
1 files changed, 49 insertions, 42 deletions
diff --git a/contrib/gdb/gdb/event-loop.c b/contrib/gdb/gdb/event-loop.c index ea74419..c8d12f9 100644 --- a/contrib/gdb/gdb/event-loop.c +++ b/contrib/gdb/gdb/event-loop.c @@ -1,5 +1,5 @@ /* Event loop machinery for GDB, the GNU debugger. - Copyright 1999, 2000, 2001 Free Software Foundation, Inc. + Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc. Written by Elena Zannoni <ezannoni@cygnus.com> of Cygnus Solutions. This file is part of GDB. @@ -210,7 +210,6 @@ static void create_file_handler (int fd, int mask, handler_func * proc, gdb_clie static void invoke_async_signal_handler (void); static void handle_file_event (int event_file_desc); static int gdb_wait_for_event (void); -static int gdb_do_one_event (void *data); static int check_async_ready (void); static void async_queue_event (gdb_event * event_ptr, queue_position position); static gdb_event *create_file_event (int fd); @@ -346,7 +345,7 @@ process_event (void) can happen if there are no event sources to wait for). If an error occurs catch_errors() which calls this function returns zero. */ -static int +int gdb_do_one_event (void *data) { /* Any events already waiting in the queue? */ @@ -393,10 +392,17 @@ start_event_loop (void) longer any event sources registered. */ while (1) { - int result = catch_errors (gdb_do_one_event, 0, "", RETURN_MASK_ALL); - if (result < 0) + int gdb_result; + + gdb_result = catch_errors (gdb_do_one_event, 0, "", RETURN_MASK_ALL); + if (gdb_result < 0) break; - if (result == 0) + + /* If we long-jumped out of do_one_event, we probably + didn't get around to resetting the prompt, which leaves + readline in a messed-up state. Reset it here. */ + + if (gdb_result == 0) { /* FIXME: this should really be a call to a hook that is interface specific, because interfaces can display the @@ -494,51 +500,52 @@ create_file_handler (int fd, int mask, handler_func * proc, gdb_client_data clie file_ptr->ready_mask = 0; file_ptr->next_file = gdb_notifier.first_file_handler; gdb_notifier.first_file_handler = file_ptr; - } - file_ptr->proc = proc; - file_ptr->client_data = client_data; - file_ptr->mask = mask; - if (use_poll) - { + if (use_poll) + { #ifdef HAVE_POLL - gdb_notifier.num_fds++; - if (gdb_notifier.poll_fds) - gdb_notifier.poll_fds = - (struct pollfd *) xrealloc (gdb_notifier.poll_fds, - (gdb_notifier.num_fds - * sizeof (struct pollfd))); - else - gdb_notifier.poll_fds = - (struct pollfd *) xmalloc (sizeof (struct pollfd)); - (gdb_notifier.poll_fds + gdb_notifier.num_fds - 1)->fd = fd; - (gdb_notifier.poll_fds + gdb_notifier.num_fds - 1)->events = mask; - (gdb_notifier.poll_fds + gdb_notifier.num_fds - 1)->revents = 0; + gdb_notifier.num_fds++; + if (gdb_notifier.poll_fds) + gdb_notifier.poll_fds = + (struct pollfd *) xrealloc (gdb_notifier.poll_fds, + (gdb_notifier.num_fds + * sizeof (struct pollfd))); + else + gdb_notifier.poll_fds = + (struct pollfd *) xmalloc (sizeof (struct pollfd)); + (gdb_notifier.poll_fds + gdb_notifier.num_fds - 1)->fd = fd; + (gdb_notifier.poll_fds + gdb_notifier.num_fds - 1)->events = mask; + (gdb_notifier.poll_fds + gdb_notifier.num_fds - 1)->revents = 0; #else - internal_error (__FILE__, __LINE__, - "use_poll without HAVE_POLL"); + internal_error (__FILE__, __LINE__, + "use_poll without HAVE_POLL"); #endif /* HAVE_POLL */ - } - else - { - if (mask & GDB_READABLE) - FD_SET (fd, &gdb_notifier.check_masks[0]); + } else - FD_CLR (fd, &gdb_notifier.check_masks[0]); + { + if (mask & GDB_READABLE) + FD_SET (fd, &gdb_notifier.check_masks[0]); + else + FD_CLR (fd, &gdb_notifier.check_masks[0]); - if (mask & GDB_WRITABLE) - FD_SET (fd, &gdb_notifier.check_masks[1]); - else - FD_CLR (fd, &gdb_notifier.check_masks[1]); + if (mask & GDB_WRITABLE) + FD_SET (fd, &gdb_notifier.check_masks[1]); + else + FD_CLR (fd, &gdb_notifier.check_masks[1]); - if (mask & GDB_EXCEPTION) - FD_SET (fd, &gdb_notifier.check_masks[2]); - else - FD_CLR (fd, &gdb_notifier.check_masks[2]); + if (mask & GDB_EXCEPTION) + FD_SET (fd, &gdb_notifier.check_masks[2]); + else + FD_CLR (fd, &gdb_notifier.check_masks[2]); - if (gdb_notifier.num_fds <= fd) - gdb_notifier.num_fds = fd + 1; + if (gdb_notifier.num_fds <= fd) + gdb_notifier.num_fds = fd + 1; + } } + + file_ptr->proc = proc; + file_ptr->client_data = client_data; + file_ptr->mask = mask; } /* Remove the file descriptor FD from the list of monitored fd's: |
