From e52c971f17ac747a065388b54a909f44b5582cd9 Mon Sep 17 00:00:00 2001 From: Pedro Alves Date: Wed, 6 Mar 2019 18:29:19 +0000 Subject: [PATCH] linux-fork.c: rewrite inf_has_multiple_threads There's no need to iterate over all threads of all inferiors here. gdb/ChangeLog: 2019-03-06 Pedro Alves * linux-fork.c (inf_has_multiple_thread_cb): Delete. (inf_has_multiple_threads): Return 'bool' and rewrite using inferior_info::threads(). --- gdb/ChangeLog | 6 ++++++ gdb/linux-fork.c | 29 +++++++++-------------------- 2 files changed, 15 insertions(+), 20 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 7a7ee5fc80..f423232d95 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,9 @@ +2019-03-06 Pedro Alves + + * linux-fork.c (inf_has_multiple_thread_cb): Delete. + (inf_has_multiple_threads): Return 'bool' and rewrite using + inferior_info::threads(). + 2019-03-06 Pedro Alves * linux-fork.c: Include . diff --git a/gdb/linux-fork.c b/gdb/linux-fork.c index 1c7b7ca123..4bc454ba6d 100644 --- a/gdb/linux-fork.c +++ b/gdb/linux-fork.c @@ -627,31 +627,20 @@ linux_fork_checkpointing_p (int pid) return (checkpointing_pid == pid); } -/* Callback for iterate over threads. Used to check whether - the current inferior is multi-threaded. Returns true as soon - as it sees the second thread of the current inferior. */ - -static int -inf_has_multiple_thread_cb (struct thread_info *tp, void *data) -{ - int *count_p = (int *) data; - - if (current_inferior ()->pid == tp->ptid.pid ()) - (*count_p)++; - - /* Stop the iteration if multiple threads have been detected. */ - return *count_p > 1; -} - /* Return true if the current inferior is multi-threaded. */ -static int -inf_has_multiple_threads (void) +static bool +inf_has_multiple_threads () { int count = 0; - iterate_over_threads (inf_has_multiple_thread_cb, &count); - return (count > 1); + /* Return true as soon as we see the second thread of the current + inferior. */ + for (thread_info *tp ATTRIBUTE_UNUSED : current_inferior ()->threads ()) + if (++count > 1) + return true; + + return false; } static void -- 2.34.1