59e8fe32fc
So that the common tasks of providing a helpline at __run entry and destroying the window and releasing resourses at exit can be abstracted away, reducing a bit more the coupling with libnewt. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
69 lines
1.1 KiB
C
69 lines
1.1 KiB
C
#define _GNU_SOURCE
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <newt.h>
|
|
|
|
#include "../debug.h"
|
|
#include "helpline.h"
|
|
|
|
void ui_helpline__pop(void)
|
|
{
|
|
newtPopHelpLine();
|
|
}
|
|
|
|
void ui_helpline__push(const char *msg)
|
|
{
|
|
newtPushHelpLine(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);
|
|
}
|
|
|
|
void ui_helpline__init(void)
|
|
{
|
|
ui_helpline__puts(" ");
|
|
}
|
|
|
|
char ui_helpline__last_msg[1024];
|
|
|
|
int ui_helpline__show_help(const char *format, va_list ap)
|
|
{
|
|
int ret;
|
|
static int backlog;
|
|
|
|
ret = vsnprintf(ui_helpline__last_msg + backlog,
|
|
sizeof(ui_helpline__last_msg) - backlog, format, ap);
|
|
backlog += ret;
|
|
|
|
if (ui_helpline__last_msg[backlog - 1] == '\n') {
|
|
ui_helpline__puts(ui_helpline__last_msg);
|
|
newtRefresh();
|
|
backlog = 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|