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* Makefile.in (mingw-hdep.o, posix-hdep.o, remote-fileio.o): Update.

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* event-loop.c (call_async_signal_handler): New.
	* event-loop.h (call_async_signal_handler)
	(gdb_call_async_signal_handler): Declare.
	(mark_async_signal_handler): Add comments.
	* event-top.c (handle_sigint): Use gdb_call_async_signal_handler.
	* mingw-hdep.c (sigint_event, sigint_handler): New.
	(gdb_select): Use them.  Wait for the readline signal handler
	to finish.
	(gdb_call_async_signal_handler, _initialize_mingw_hdep): New functions.
	* posix-hdep.c (gdb_call_async_signal_handler): New function.
	* remote-fileio.c (sigint_fileio_token, async_remote_fileio_interrupt):
	New.
	(remote_fileio_ctrl_c_signal_handler): Use
	gdb_call_async_signal_handler.
	(initialize_remote_fileio): Initialize sigint_fileio_token.
	* remote.c (initialize_sigint_signal_handler, handle_remote_sigint): Do
	not initialize tokens here.
	(handle_remote_sigint_twice): Likewise.  Reinstall
	handle_remote_sigint.
	(async_remote_interrupt_twice): Just call interrupt_query.
	(cleanup_sigint_signal_handler): Do not delete tokens.
	(remote_interrupt, remote_interrupt_twice): Use
	gdb_call_async_signal_handler.
	(interrupt_query): Reinstall the default signal handler.
	(_initialize_remote): Initialize tokens here.
This commit is contained in:
Daniel Jacobowitz
2008-03-05 17:21:10 +00:00
parent 7e8064706d
commit b803fb0f0f
9 changed files with 165 additions and 43 deletions
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23
gdb/event-loop.h
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@@ -86,9 +86,30 @@ extern void start_event_loop (void);
extern int gdb_do_one_event (void *data);
extern void delete_file_handler (int fd);
extern void add_file_handler (int fd, handler_func * proc, gdb_client_data client_data);
extern void mark_async_signal_handler (struct async_signal_handler *async_handler_ptr);
extern struct async_signal_handler *
create_async_signal_handler (sig_handler_func * proc, gdb_client_data client_data);
extern void delete_async_signal_handler (struct async_signal_handler **async_handler_ptr);
extern int create_timer (int milliseconds, timer_handler_func * proc, gdb_client_data client_data);
extern void delete_timer (int id);
/* Call the handler from HANDLER immediately. This function
runs signal handlers when returning to the event loop would be too
slow. Do not call this directly; use gdb_call_async_signal_handler,
below, with IMMEDIATE_P == 1. */
void call_async_signal_handler (struct async_signal_handler *handler);
/* Call the handler from HANDLER the next time through the event loop.
Do not call this directly; use gdb_call_async_signal_handler,
below, with IMMEDIATE_P == 0. */
void mark_async_signal_handler (struct async_signal_handler *handler);
/* Wrapper for the body of signal handlers. Call this function from
any SIGINT handler which needs to access GDB data structures or
escape via longjmp. If IMMEDIATE_P is set, this triggers either
immediately (for POSIX platforms), or from gdb_select (for
MinGW). If IMMEDIATE_P is clear, the handler will run the next
time we return to the event loop and any current select calls
will be interrupted. */
void gdb_call_async_signal_handler (struct async_signal_handler *handler,
int immediate_p);