diff options
Diffstat (limited to 'gdb/gdbthread.h')
| -rw-r--r-- | gdb/gdbthread.h | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/gdb/gdbthread.h b/gdb/gdbthread.h index f283865..780ec25 100644 --- a/gdb/gdbthread.h +++ b/gdb/gdbthread.h @@ -210,21 +210,40 @@ extern void switch_to_thread (ptid_t ptid); If PIDGET (PTID) is -1, marks all threads. */ extern void set_running (ptid_t ptid, int running); -/* Reports if thread PTID is known to be running right now. */ -extern int is_running (ptid_t ptid); +/* NOTE: Since the thread state is not a boolean, most times, you do + not want to check it with negation. If you really want to check if + the thread is stopped, -/* Reports if any thread is known to be running right now. */ -extern int any_running (void); + use (good): + + if (is_stopped (ptid)) + + instead of (bad): + + if (!is_running (ptid)) + + The latter also returns true on exited threads, most likelly not + what you want. */ + +/* Reports if in the frontend's perpective, thread PTID is running. */ +extern int is_running (ptid_t ptid); /* Is this thread listed, but known to have exited? We keep it listed (but not visible) until it's safe to delete. */ extern int is_exited (ptid_t ptid); -/* Is this thread stopped? */ +/* In the frontend's perpective, is this thread stopped? */ extern int is_stopped (ptid_t ptid); -/* Marks thread PTID as executing, or as stopped. - If PIDGET (PTID) is -1, marks all threads. */ +/* In the frontend's perpective is there any thread running? */ +extern int any_running (void); + +/* Marks thread PTID as executing, or not. If PIDGET (PTID) is -1, + marks all threads. + + Note that this is different from the running state. See the + description of state_ and executing_ fields of struct + thread_info. */ extern void set_executing (ptid_t ptid, int executing); /* Reports if thread PTID is executing. */ |