diff options
Diffstat (limited to 'gdb/defs.h')
| -rw-r--r-- | gdb/defs.h | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/gdb/defs.h b/gdb/defs.h index de34740f323..96bc58c8b00 100644 --- a/gdb/defs.h +++ b/gdb/defs.h @@ -171,7 +171,27 @@ extern char *python_libdir; /* Search path for separate debug files. */ extern char *debug_file_directory; -extern int quit_flag; +/* GDB has two methods for handling SIGINT. When immediate_quit is + nonzero, a SIGINT results in an immediate longjmp out of the signal + handler. Otherwise, SIGINT simply sets a flag; code that might + take a long time, and which ought to be interruptible, checks this + flag using the QUIT macro. + + If GDB is built with Python support, it uses Python's low-level + interface to implement the flag. This approach makes it possible + for Python and GDB SIGINT handling to coexist seamlessly. + + If GDB is built without Python, it instead uses its traditional + variables. */ + +/* Clear the quit flag. */ +extern void clear_quit_flag (void); +/* Evaluate to non-zero if the quit flag is set, zero otherwise. This + will clear the quit flag as a side effect. */ +extern int check_quit_flag (void); +/* Set the quit flag. */ +extern void set_quit_flag (void); + extern int immediate_quit; extern void quit (void); @@ -184,7 +204,7 @@ extern void quit (void); needed. */ #define QUIT { \ - if (quit_flag) quit (); \ + if (check_quit_flag ()) quit (); \ if (deprecated_interactive_hook) deprecated_interactive_hook (); \ } |