diff options
Diffstat (limited to 'gdb/event-loop.c')
| -rw-r--r-- | gdb/event-loop.c | 43 |
1 files changed, 41 insertions, 2 deletions
diff --git a/gdb/event-loop.c b/gdb/event-loop.c index fc20df1..1e22e06 100644 --- a/gdb/event-loop.c +++ b/gdb/event-loop.c @@ -119,8 +119,10 @@ sighandler_list; function. */ static int async_handler_ready = 0; +static void create_file_handler PARAMS ((int, int, file_handler_func *, gdb_client_data)); static void invoke_async_signal_handler PARAMS ((void)); static int gdb_wait_for_event PARAMS ((void)); +static int gdb_do_one_event PARAMS ((void)); static int check_async_ready PARAMS ((void)); @@ -236,7 +238,7 @@ process_event () wait for something to happen (via gdb_wait_for_event), then process it. Returns 1 if something was done otherwise returns 0 (this can happen if there are no event sources to wait for). */ -int +static int gdb_do_one_event () { int result = 0; @@ -278,6 +280,9 @@ gdb_do_one_event () } /* end of if !set_top_level */ else { + /* FIXME: this should really be a call to a hook that is + interface specific, because interfaces can display the + prompt in their own way. */ display_gdb_prompt (0); /* Maybe better to set a flag to be checked somewhere as to whether display the prompt or not. */ @@ -285,8 +290,42 @@ gdb_do_one_event () } return result; } + +/* Start up the event loop. This is the entry point to the event loop + from the command loop. */ +void +start_event_loop () +{ + /* Loop until there is something to do. This is the entry point to + the event loop engine. gdb_do_one_event will process one event + for each invocation. It always returns 1, unless there are no + more event sources registered. In this case it returns 0. */ + while (gdb_do_one_event () != 0) + ; + + /* We are done with the event loop. There are no more event sources + to listen to. So we exit GDB. */ + return; +} + +/* Wrapper function for create_file_handler, so that the caller + doesn't have to know implementation details about the use of poll + vs. select. */ +void +add_file_handler (fd, proc, client_data) + int fd; + file_handler_func *proc; + gdb_client_data client_data; +{ +#ifdef HAVE_POLL + create_file_handler (fd, POLLIN, (file_handler_func *) proc, client_data); +#else + create_file_handler (fd, GDB_READABLE, (file_handler_func *) proc, client_data); +#endif +} + /* Add a file handler/descriptor to the list of descriptors we are interested in. FD is the file descriptor for the file/stream to be listened to. @@ -297,7 +336,7 @@ gdb_do_one_event () For the select case, MASK is a combination of READABLE, WRITABLE, EXCEPTION. PROC is the procedure that will be called when an event occurs for FD. CLIENT_DATA is the argument to pass to PROC. */ -void +static void create_file_handler (fd, mask, proc, client_data) int fd; int mask; |