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kernel/linux-imx6_3.14.28/tools/perf/ui/helpline.c 1.16 KB
6b13f685e   김민수   BSP 최초 추가
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  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  
  #include "../debug.h"
  #include "helpline.h"
  #include "ui.h"
  
  char ui_helpline__current[512];
  
  static void nop_helpline__pop(void)
  {
  }
  
  static void nop_helpline__push(const char *msg __maybe_unused)
  {
  }
  
  static int nop_helpline__show(const char *fmt __maybe_unused,
  			       va_list ap __maybe_unused)
  {
  	return 0;
  }
  
  static struct ui_helpline default_helpline_fns = {
  	.pop	= nop_helpline__pop,
  	.push	= nop_helpline__push,
  	.show	= nop_helpline__show,
  };
  
  struct ui_helpline *helpline_fns = &default_helpline_fns;
  
  void ui_helpline__pop(void)
  {
  	helpline_fns->pop();
  }
  
  void ui_helpline__push(const char *msg)
  {
  	helpline_fns->push(msg);
  }
  
  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);
  	}
  }
  
  void ui_helpline__fpush(const char *fmt, ...)
  {
  	va_list ap;
  
  	va_start(ap, fmt);
  	ui_helpline__vpush(fmt, ap);
  	va_end(ap);
  }
  
  void ui_helpline__puts(const char *msg)
  {
  	ui_helpline__pop();
  	ui_helpline__push(msg);
  }
  
  int ui_helpline__vshow(const char *fmt, va_list ap)
  {
  	return helpline_fns->show(fmt, ap);
  }