perf ui browser: Allow specifying message to show when no samples are available to display (2284cf80) · Commits · 戴 / test

The 'perf top' tool will use that to avoid having a initial blank screen while collecting the minimum number of samples to sort and display. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-89ciceg8cy4442he3t0jzo3f@git.kernel.org Signed-off-by:

Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/ui/browser.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -347,6 +347,8 @@ static int __ui_browser__refresh(struct ui_browser *browser)
		SLsmg_fill_region(browser->y + row + browser->extra_title_lines, browser->x,
		browser->rows - row, width, ' ');

		if (browser->nr_entries == 0 && browser->no_samples_msg)
		__ui__info_window(NULL, browser->no_samples_msg, NULL);
		return 0;
		}

tools/perf/ui/browser.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@ struct ui_browser {
		void *priv;
		const char *title;
		char *helpline;
		const char *no_samples_msg;
		void (refresh_dimensions)(struct ui_browser browser);
		unsigned int (refresh)(struct ui_browser browser);
		void (write)(struct ui_browser browser, void *entry, int row);

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