[PATCH 04/11] gdb, gdbserver: make iterate_over_lwps_ftype a function_view

[Simon Marchi <simon.marchi@efficios.com>]

From: Simon Marchi <simon.marchi@polymtl.ca>

All users of iterate_over_lwps_ftype use it within a function_view
template.  Integrate function_view to the type alias.

Change-Id: I3eb23aa3dbc1889072a5d4654e861b00942d6c3f
---
 gdb/linux-nat.c        | 5 ++---
 gdb/nat/linux-nat.h    | 7 +++----
 gdbserver/linux-low.cc | 5 ++---
 3 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c
index f141ba19ea44..362ef5f1cb75 100644
--- a/gdb/linux-nat.c
+++ b/gdb/linux-nat.c
@@ -928,9 +928,8 @@ find_lwp_pid (ptid_t ptid)
 
 /* See nat/linux-nat.h.  */
 
-struct lwp_info *
-iterate_over_lwps (ptid_t filter,
-		   gdb::function_view<iterate_over_lwps_ftype> callback)
+lwp_info *
+iterate_over_lwps (ptid_t filter, iterate_over_lwps_ftype callback)
 {
   for (lwp_info &lp : all_lwps_safe ())
     {
diff --git a/gdb/nat/linux-nat.h b/gdb/nat/linux-nat.h
index 708990acc4d9..42c0467191fe 100644
--- a/gdb/nat/linux-nat.h
+++ b/gdb/nat/linux-nat.h
@@ -47,7 +47,7 @@ extern tribool have_ptrace_getregset;
 extern ptid_t current_lwp_ptid (void);
 
 /* Function type for the CALLBACK argument of iterate_over_lwps.  */
-typedef int (iterate_over_lwps_ftype) (struct lwp_info *lwp);
+using iterate_over_lwps_ftype = gdb::function_view<int (lwp_info *lwp)>;
 
 /* Iterate over all LWPs.  Calls CALLBACK with its second argument set
    to DATA for every LWP in the list.  If CALLBACK returns nonzero for
@@ -55,9 +55,8 @@ typedef int (iterate_over_lwps_ftype) (struct lwp_info *lwp);
    LWP immediately.  Otherwise return NULL.  This function must be
    provided by the client.  */
 
-extern struct lwp_info *iterate_over_lwps
-    (ptid_t filter,
-     gdb::function_view<iterate_over_lwps_ftype> callback);
+extern lwp_info *iterate_over_lwps (ptid_t filter,
+				    iterate_over_lwps_ftype callback);
 
 /* Return the ptid of LWP.  */
 
diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc
index 0246217db86c..022e8415fda8 100644
--- a/gdbserver/linux-low.cc
+++ b/gdbserver/linux-low.cc
@@ -1768,9 +1768,8 @@ num_lwps (process_info *process)
 
 /* See nat/linux-nat.h.  */
 
-struct lwp_info *
-iterate_over_lwps (ptid_t filter,
-		   gdb::function_view<iterate_over_lwps_ftype> callback)
+lwp_info *
+iterate_over_lwps (ptid_t filter, iterate_over_lwps_ftype callback)
 {
   thread_info *thread = find_thread (filter, [&] (thread_info *thr_arg)
     {
-- 
2.53.0