Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / tools / perf / ui / gtk / helpline.c

diff --git a/kernel/tools/perf/ui/gtk/helpline.c b/kernel/tools/perf/ui/gtk/helpline.c
new file mode 100644 (file)
index 0000000..3388cbd
--- /dev/null
+++ b/kernel/tools/perf/ui/gtk/helpline.c
@@ -0,0 +1,57 @@
+#include <stdio.h>
+#include <string.h>
+
+#include "gtk.h"
+#include "../ui.h"
+#include "../helpline.h"
+#include "../../util/debug.h"
+
+static void gtk_helpline_pop(void)
+{
+       if (!perf_gtk__is_active_context(pgctx))
+               return;
+
+       gtk_statusbar_pop(GTK_STATUSBAR(pgctx->statbar),
+                         pgctx->statbar_ctx_id);
+}
+
+static void gtk_helpline_push(const char *msg)
+{
+       if (!perf_gtk__is_active_context(pgctx))
+               return;
+
+       gtk_statusbar_push(GTK_STATUSBAR(pgctx->statbar),
+                          pgctx->statbar_ctx_id, msg);
+}
+
+static int gtk_helpline_show(const char *fmt, va_list ap)
+{
+       int ret;
+       char *ptr;
+       static int backlog;
+
+       ret = vscnprintf(ui_helpline__current + backlog,
+                        sizeof(ui_helpline__current) - backlog, fmt, ap);
+       backlog += ret;
+
+       /* only first line can be displayed */
+       ptr = strchr(ui_helpline__current, '\n');
+       if (ptr && (ptr - ui_helpline__current) <= backlog) {
+               *ptr = '\0';
+               ui_helpline__puts(ui_helpline__current);
+               backlog = 0;
+       }
+
+       return ret;
+}
+
+static struct ui_helpline gtk_helpline_fns = {
+       .pop    = gtk_helpline_pop,
+       .push   = gtk_helpline_push,
+       .show   = gtk_helpline_show,
+};
+
+void perf_gtk__init_helpline(void)
+{
+       helpline_fns = &gtk_helpline_fns;
+}