Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758517Ab2HQQmE (ORCPT ); Fri, 17 Aug 2012 12:42:04 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:42700 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758493Ab2HQQl7 (ORCPT ); Fri, 17 Aug 2012 12:41:59 -0400 From: Namhyung Kim To: Arnaldo Carvalho de Melo Cc: Ingo Molnar , Peter Zijlstra , Pekka Enberg , LKML Subject: [PATCH v3 5/5] perf ui/gtk: Add perf_gtk__show_helpline() for pr_* Date: Sat, 18 Aug 2012 01:40:49 +0900 Message-Id: <1345221649-3412-1-git-send-email-namhyung@kernel.org> X-Mailer: git-send-email 1.7.9.2 In-Reply-To: <1345104894-14205-5-git-send-email-namhyung@kernel.org> References: <1345104894-14205-5-git-send-email-namhyung@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5855 Lines: 202 Use helpline for printing error/debug messages. The code resembles a TUI counter part and only print the first line of the message. Acked-by: Pekka Enberg Signed-off-by: Namhyung Kim --- * protect the function from concurrent access using ui__lock * use memchr instead of strchr since there's no guarantee that the ui_helpline__current is NULL-terminated. tools/perf/ui/gtk/helpline.c | 28 ++++++++++++++++++++++++++++ tools/perf/ui/gtk/util.c | 5 ----- tools/perf/ui/helpline.h | 23 +++++++++++++++++++++++ tools/perf/ui/setup.c | 4 ++++ tools/perf/ui/tui/setup.c | 2 -- tools/perf/util/debug.c | 4 +++- tools/perf/util/debug.h | 8 +------- 7 files changed, 59 insertions(+), 15 deletions(-) diff --git a/tools/perf/ui/gtk/helpline.c b/tools/perf/ui/gtk/helpline.c index c02cb4a54939..efd36719e0a6 100644 --- a/tools/perf/ui/gtk/helpline.c +++ b/tools/perf/ui/gtk/helpline.c @@ -1,5 +1,10 @@ +#include +#include + #include "gtk.h" +#include "../ui.h" #include "../helpline.h" +#include "../../util/debug.h" static void gtk_helpline_pop(void) @@ -29,3 +34,26 @@ void perf_gtk__init_helpline(void) { helpline_fns = >k_helpline_fns; } + +int perf_gtk__show_helpline(const char *fmt, va_list ap) +{ + int ret; + char *ptr; + static int backlog; + + pthread_mutex_lock(&ui__lock); + ret = vscnprintf(ui_helpline__current + backlog, + sizeof(ui_helpline__current) - backlog, fmt, ap); + backlog += ret; + + /* only first line can be displayed */ + ptr = memchr(ui_helpline__current, '\n', sizeof(ui_helpline__current)); + if (ptr && (ptr - ui_helpline__current) <= backlog) { + *ptr = '\0'; + ui_helpline__puts(ui_helpline__current); + backlog = 0; + } + pthread_mutex_unlock(&ui__lock); + + return ret; +} diff --git a/tools/perf/ui/gtk/util.c b/tools/perf/ui/gtk/util.c index 0ead373c0dfb..b8efb966f94c 100644 --- a/tools/perf/ui/gtk/util.c +++ b/tools/perf/ui/gtk/util.c @@ -117,11 +117,6 @@ struct perf_error_ops perf_gtk_eops = { * For now, just add stubs for NO_NEWT=1 build. */ #ifdef NO_NEWT_SUPPORT -int ui_helpline__show_help(const char *format __used, va_list ap __used) -{ - return 0; -} - void ui_progress__update(u64 curr __used, u64 total __used, const char *title __used) { diff --git a/tools/perf/ui/helpline.h b/tools/perf/ui/helpline.h index 7e2d4fb10ebd..8d5a8ba3a122 100644 --- a/tools/perf/ui/helpline.h +++ b/tools/perf/ui/helpline.h @@ -4,6 +4,8 @@ #include #include +#include "../util/cache.h" + struct perf_helpline { void (*pop)(void); void (*push)(const char *msg); @@ -19,4 +21,25 @@ void ui_helpline__puts(const char *msg); extern char ui_helpline__current[512]; +#ifdef NO_NEWT_SUPPORT +static inline int ui_helpline__show_help(const char *format __used, + va_list ap __used) +{ + return 0; +} +#else +extern char ui_helpline__last_msg[]; +int ui_helpline__show_help(const char *format, va_list ap); +#endif /* NO_NEWT_SUPPORT */ + +#ifdef NO_GTK2_SUPPORT +static inline int perf_gtk__show_helpline(const char *format __used, + va_list ap __used) +{ + return 0; +} +#else +int perf_gtk__show_helpline(const char *format, va_list ap); +#endif /* NO_GTK2_SUPPORT */ + #endif /* _PERF_UI_HELPLINE_H_ */ diff --git a/tools/perf/ui/setup.c b/tools/perf/ui/setup.c index 791fb15ce350..c7820e569660 100644 --- a/tools/perf/ui/setup.c +++ b/tools/perf/ui/setup.c @@ -1,7 +1,11 @@ +#include + #include "../cache.h" #include "../debug.h" +pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER; + void setup_browser(bool fallback_to_pager) { if (!isatty(1) || dump_trace) diff --git a/tools/perf/ui/tui/setup.c b/tools/perf/ui/tui/setup.c index e247bf51d247..009c962fae85 100644 --- a/tools/perf/ui/tui/setup.c +++ b/tools/perf/ui/tui/setup.c @@ -3,8 +3,6 @@ #include "tui.h" -pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER; - static volatile int ui__need_resize; void ui__refresh_dimensions(bool force) diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c index 4dfe0bb3c322..66eb3828ceb5 100644 --- a/tools/perf/util/debug.c +++ b/tools/perf/util/debug.c @@ -23,8 +23,10 @@ int eprintf(int level, const char *fmt, ...) if (verbose >= level) { va_start(args, fmt); - if (use_browser > 0) + if (use_browser == 1) ret = ui_helpline__show_help(fmt, args); + else if (use_browser == 2) + ret = perf_gtk__show_helpline(fmt, args); else ret = vfprintf(stderr, fmt, args); va_end(args); diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h index 015c91dbc096..05e660cbf7e2 100644 --- a/tools/perf/util/debug.h +++ b/tools/perf/util/debug.h @@ -4,6 +4,7 @@ #include #include "event.h" +#include "../ui/helpline.h" extern int verbose; extern bool quiet, dump_trace; @@ -15,11 +16,6 @@ struct ui_progress; struct perf_error_ops; #if defined(NO_NEWT_SUPPORT) && defined(NO_GTK2_SUPPORT) -static inline int ui_helpline__show_help(const char *format __used, va_list ap __used) -{ - return 0; -} - static inline void ui_progress__update(u64 curr __used, u64 total __used, const char *title __used) {} @@ -39,8 +35,6 @@ perf_error__unregister(struct perf_error_ops *eops __used) #else /* NO_NEWT_SUPPORT && NO_GTK2_SUPPORT */ -extern char ui_helpline__last_msg[]; -int ui_helpline__show_help(const char *format, va_list ap); #include "../ui/progress.h" int ui__error(const char *format, ...) __attribute__((format(printf, 1, 2))); #include "../ui/util.h" -- 1.7.9.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/