perf ui: Add ui_helpline methods
Initially this was just to be able to have a printf like method to
prepare the formatted string and then pass to newtPushHelpLine, but as
we already have for ui_progress, etc, its a step in identifying a
restricted, highlevel set of widgets we can then have implementations
for multiple widget sets (GTK, etc).
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/newt.c b/tools/perf/util/newt.c
index 638b519..daa86ef 100644
--- a/tools/perf/util/newt.c
+++ b/tools/perf/util/newt.c
@@ -57,6 +57,43 @@
free(self);
}
+static void ui_helpline__pop(void)
+{
+ newtPopHelpLine();
+}
+
+static void ui_helpline__push(const char *msg)
+{
+ newtPushHelpLine(msg);
+}
+
+static void ui_helpline__vpush(const char *fmt, va_list ap)
+{
+ char *s;
+
+ if (vasprintf(&s, fmt, ap) < 0)
+ vfprintf(stderr, fmt, ap);
+ else {
+ ui_helpline__push(s);
+ free(s);
+ }
+}
+
+static void ui_helpline__fpush(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ ui_helpline__vpush(fmt, ap);
+ va_end(ap);
+}
+
+static void ui_helpline__puts(const char *msg)
+{
+ ui_helpline__pop();
+ ui_helpline__push(msg);
+}
+
static char browser__last_msg[1024];
int browser__show_help(const char *format, va_list ap)
@@ -69,8 +106,7 @@
backlog += ret;
if (browser__last_msg[backlog - 1] == '\n') {
- newtPopHelpLine();
- newtPushHelpLine(browser__last_msg);
+ ui_helpline__puts(browser__last_msg);
newtRefresh();
backlog = 0;
}
@@ -340,7 +376,7 @@
if (fp == NULL)
goto out_free_str;
- newtPushHelpLine("Press ESC to exit");
+ ui_helpline__push("Press ESC to exit");
newtGetScreenSize(&cols, &rows);
tree = newtListbox(0, 0, rows - 5, NEWT_FLAG_SCROLL);
@@ -370,7 +406,7 @@
newtFormRun(form, &es);
newtFormDestroy(form);
newtPopWindow();
- newtPopHelpLine();
+ ui_helpline__pop();
out_free_str:
free(str);
}
@@ -539,7 +575,7 @@
if (browser == NULL)
return -1;
- newtPushHelpLine(helpline);
+ ui_helpline__push(helpline);
hist_browser__title(msg, sizeof(msg), input_name,
dso_filter, thread_filter);
@@ -602,8 +638,7 @@
do_annotate:
if (choice == annotate) {
if (browser->selection->map->dso->origin == DSO__ORIG_KERNEL) {
- newtPopHelpLine();
- newtPushHelpLine("No vmlinux file found, can't "
+ ui_helpline__puts("No vmlinux file found, can't "
"annotate with just a "
"kallsyms file");
continue;
@@ -611,13 +646,11 @@
map_symbol__annotate_browser(browser->selection, input_name);
} else if (choice == zoom_dso) {
if (dso_filter) {
- newtPopHelpLine();
+ ui_helpline__pop();
dso_filter = NULL;
} else {
- snprintf(msg, sizeof(msg),
- "To zoom out press -> + \"Zoom out of %s DSO\"",
- dso->kernel ? "the Kernel" : dso->short_name);
- newtPushHelpLine(msg);
+ ui_helpline__fpush("To zoom out press -> + \"Zoom out of %s DSO\"",
+ dso->kernel ? "the Kernel" : dso->short_name);
dso_filter = dso;
}
hists__filter_by_dso(self, dso_filter);
@@ -627,14 +660,12 @@
goto out;
} else if (choice == zoom_thread) {
if (thread_filter) {
- newtPopHelpLine();
+ ui_helpline__pop();
thread_filter = NULL;
} else {
- snprintf(msg, sizeof(msg),
- "To zoom out press -> + \"Zoom out of %s(%d) thread\"",
- (thread->comm_set ? thread->comm : ""),
- thread->pid);
- newtPushHelpLine(msg);
+ ui_helpline__fpush("To zoom out press -> + \"Zoom out of %s(%d) thread\"",
+ thread->comm_set ? thread->comm : "",
+ thread->pid);
thread_filter = thread;
}
hists__filter_by_thread(self, thread_filter);
@@ -658,7 +689,7 @@
use_browser = true;
newtInit();
newtCls();
- newtPushHelpLine(" ");
+ ui_helpline__puts(" ");
}
void exit_browser(bool wait_for_ok)
