Commit e6e90468 authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo

perf ui: Introduce struct ui_helpline

Add struct ui_helpline in order to provide flexible implementation of
helpline APIs.  And convert existing TUI implementation to use it.
Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1345104894-14205-1-git-send-email-namhyung@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent c883122a
......@@ -335,6 +335,7 @@ LIB_H += util/rblist.h
LIB_H += util/intlist.h
LIB_H += util/perf_regs.h
LIB_H += util/unwind.h
LIB_H += ui/helpline.h
LIB_OBJS += $(OUTPUT)util/abspath.o
LIB_OBJS += $(OUTPUT)util/alias.o
......@@ -402,6 +403,7 @@ LIB_OBJS += $(OUTPUT)util/cgroup.o
LIB_OBJS += $(OUTPUT)util/target.o
LIB_OBJS += $(OUTPUT)util/rblist.o
LIB_OBJS += $(OUTPUT)util/intlist.o
LIB_OBJS += $(OUTPUT)ui/helpline.o
BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o
......@@ -567,14 +569,13 @@ else
LIB_OBJS += $(OUTPUT)ui/browsers/annotate.o
LIB_OBJS += $(OUTPUT)ui/browsers/hists.o
LIB_OBJS += $(OUTPUT)ui/browsers/map.o
LIB_OBJS += $(OUTPUT)ui/helpline.o
LIB_OBJS += $(OUTPUT)ui/progress.o
LIB_OBJS += $(OUTPUT)ui/util.o
LIB_OBJS += $(OUTPUT)ui/tui/setup.o
LIB_OBJS += $(OUTPUT)ui/tui/util.o
LIB_OBJS += $(OUTPUT)ui/tui/helpline.o
LIB_H += ui/browser.h
LIB_H += ui/browsers/map.h
LIB_H += ui/helpline.h
LIB_H += ui/keysyms.h
LIB_H += ui/libslang.h
LIB_H += ui/progress.h
......
......@@ -5,23 +5,32 @@
#include "../debug.h"
#include "helpline.h"
#include "ui.h"
#include "libslang.h"
void ui_helpline__pop(void)
char ui_helpline__current[512];
static void nop_helpline__pop(void)
{
}
char ui_helpline__current[512];
static void nop_helpline__push(const char *msg __used)
{
}
void ui_helpline__push(const char *msg)
static struct ui_helpline default_helpline_fns = {
.pop = nop_helpline__pop,
.push = nop_helpline__push,
};
struct ui_helpline *helpline_fns = &default_helpline_fns;
void ui_helpline__pop(void)
{
const size_t sz = sizeof(ui_helpline__current);
helpline_fns->pop();
}
SLsmg_gotorc(SLtt_Screen_Rows - 1, 0);
SLsmg_set_color(0);
SLsmg_write_nstring((char *)msg, SLtt_Screen_Cols);
SLsmg_refresh();
strncpy(ui_helpline__current, msg, sz)[sz - 1] = '\0';
void ui_helpline__push(const char *msg)
{
helpline_fns->push(msg);
}
void ui_helpline__vpush(const char *fmt, va_list ap)
......@@ -50,30 +59,3 @@ 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;
pthread_mutex_lock(&ui__lock);
ret = vscnprintf(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);
SLsmg_refresh();
backlog = 0;
}
pthread_mutex_unlock(&ui__lock);
return ret;
}
......@@ -4,13 +4,21 @@
#include <stdio.h>
#include <stdarg.h>
struct ui_helpline {
void (*pop)(void);
void (*push)(const char *msg);
};
extern struct ui_helpline *helpline_fns;
void ui_helpline__init(void);
void ui_helpline__pop(void);
void ui_helpline__push(const char *msg);
void ui_helpline__vpush(const char *fmt, va_list ap);
void ui_helpline__fpush(const char *fmt, ...);
void ui_helpline__puts(const char *msg);
extern char ui_helpline__current[];
extern char ui_helpline__current[512];
#endif /* _PERF_UI_HELPLINE_H_ */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
#include "../../util/debug.h"
#include "../helpline.h"
#include "../ui.h"
#include "../libslang.h"
static void tui_helpline__pop(void)
{
}
static void tui_helpline__push(const char *msg)
{
const size_t sz = sizeof(ui_helpline__current);
SLsmg_gotorc(SLtt_Screen_Rows - 1, 0);
SLsmg_set_color(0);
SLsmg_write_nstring((char *)msg, SLtt_Screen_Cols);
SLsmg_refresh();
strncpy(ui_helpline__current, msg, sz)[sz - 1] = '\0';
}
struct ui_helpline tui_helpline_fns = {
.pop = tui_helpline__pop,
.push = tui_helpline__push,
};
void ui_helpline__init(void)
{
helpline_fns = &tui_helpline_fns;
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;
pthread_mutex_lock(&ui__lock);
ret = vscnprintf(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);
SLsmg_refresh();
backlog = 0;
}
pthread_mutex_unlock(&ui__lock);
return ret;
}
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