diff options
author | Namhyung Kim <namhyung@gmail.com> | 2012-04-04 07:14:26 (GMT) |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-04-11 20:16:40 (GMT) |
commit | aca7a94d6a59d6bf2600768e752f971c6cc0ab57 (patch) | |
tree | 801b40ba5cb8aba9d3d0842a3d87c741b97f58f2 /tools/perf/ui/setup.c | |
parent | a31b7cc083b1d3d15bd475729fc4471685ebc5f6 (diff) | |
download | linux-aca7a94d6a59d6bf2600768e752f971c6cc0ab57.tar.xz |
perf tools: Move UI bits to tools/perf/ui directory
Move those files to new directory in order to be prepared to further UI
work. Makefile and header file pathes are adjusted accordingly.
Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl
Link: http://lkml.kernel.org/r/1333523666-12057-1-git-send-email-namhyung.kim@lge.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/ui/setup.c')
-rw-r--r-- | tools/perf/ui/setup.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/tools/perf/ui/setup.c b/tools/perf/ui/setup.c new file mode 100644 index 0000000..85a69fa --- /dev/null +++ b/tools/perf/ui/setup.c @@ -0,0 +1,155 @@ +#include <newt.h> +#include <signal.h> +#include <stdbool.h> + +#include "../cache.h" +#include "../debug.h" +#include "browser.h" +#include "helpline.h" +#include "ui.h" +#include "util.h" +#include "libslang.h" +#include "keysyms.h" + +pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER; + +static volatile int ui__need_resize; + +void ui__refresh_dimensions(bool force) +{ + if (force || ui__need_resize) { + ui__need_resize = 0; + pthread_mutex_lock(&ui__lock); + SLtt_get_screen_size(); + SLsmg_reinit_smg(); + pthread_mutex_unlock(&ui__lock); + } +} + +static void ui__sigwinch(int sig __used) +{ + ui__need_resize = 1; +} + +static void ui__setup_sigwinch(void) +{ + static bool done; + + if (done) + return; + + done = true; + pthread__unblock_sigwinch(); + signal(SIGWINCH, ui__sigwinch); +} + +int ui__getch(int delay_secs) +{ + struct timeval timeout, *ptimeout = delay_secs ? &timeout : NULL; + fd_set read_set; + int err, key; + + ui__setup_sigwinch(); + + FD_ZERO(&read_set); + FD_SET(0, &read_set); + + if (delay_secs) { + timeout.tv_sec = delay_secs; + timeout.tv_usec = 0; + } + + err = select(1, &read_set, NULL, NULL, ptimeout); + + if (err == 0) + return K_TIMER; + + if (err == -1) { + if (errno == EINTR) + return K_RESIZE; + return K_ERROR; + } + + key = SLang_getkey(); + if (key != K_ESC) + return key; + + FD_ZERO(&read_set); + FD_SET(0, &read_set); + timeout.tv_sec = 0; + timeout.tv_usec = 20; + err = select(1, &read_set, NULL, NULL, &timeout); + if (err == 0) + return K_ESC; + + SLang_ungetkey(key); + return SLkp_getkey(); +} + +static void newt_suspend(void *d __used) +{ + newtSuspend(); + raise(SIGTSTP); + newtResume(); +} + +static int ui__init(void) +{ + int err = SLkp_init(); + + if (err < 0) + goto out; + + SLkp_define_keysym((char *)"^(kB)", SL_KEY_UNTAB); +out: + return err; +} + +static void ui__exit(void) +{ + SLtt_set_cursor_visibility(1); + SLsmg_refresh(); + SLsmg_reset_smg(); + SLang_reset_tty(); +} + +static void ui__signal(int sig) +{ + ui__exit(); + psignal(sig, "perf"); + exit(0); +} + +void setup_browser(bool fallback_to_pager) +{ + if (!isatty(1) || !use_browser || dump_trace) { + use_browser = 0; + if (fallback_to_pager) + setup_pager(); + return; + } + + use_browser = 1; + newtInit(); + ui__init(); + newtSetSuspendCallback(newt_suspend, NULL); + ui_helpline__init(); + ui_browser__init(); + + signal(SIGSEGV, ui__signal); + signal(SIGFPE, ui__signal); + signal(SIGINT, ui__signal); + signal(SIGQUIT, ui__signal); + signal(SIGTERM, ui__signal); +} + +void exit_browser(bool wait_for_ok) +{ + if (use_browser > 0) { + if (wait_for_ok) + ui__question_window("Fatal Error", + ui_helpline__last_msg, + "Press any key...", 0); + ui__exit(); + } +} |