kernel_optimize_test/tools/perf/ui/setup.c
Arnaldo Carvalho de Melo c09615f29c perf ui stdio: Add way to setup the color output mode selection
In --stdio we turn off color output when the output is not a tty,
which is not always desirable, for instance, in:

  perf annotate | more

the 'more' tool is perfectly capable of processing the escape sequences
for colored output.

Allow using the existing logic for .perfconfig's "color.ui" to be used
from the command line by providing a stdio__config_color() helper, that
will be used by annotate and report in follow up patches.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-1u4wjdbcc41dxndsb4klpa9y@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-07-12 00:00:39 -03:00

115 lines
2.1 KiB
C

#include <pthread.h>
#include <dlfcn.h>
#include "../util/cache.h"
#include "../util/debug.h"
#include "../util/hist.h"
pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
void *perf_gtk_handle;
#ifdef HAVE_GTK2_SUPPORT
static int setup_gtk_browser(void)
{
int (*perf_ui_init)(void);
if (perf_gtk_handle)
return 0;
perf_gtk_handle = dlopen(PERF_GTK_DSO, RTLD_LAZY);
if (perf_gtk_handle == NULL) {
char buf[PATH_MAX];
scnprintf(buf, sizeof(buf), "%s/%s", LIBDIR, PERF_GTK_DSO);
perf_gtk_handle = dlopen(buf, RTLD_LAZY);
}
if (perf_gtk_handle == NULL)
return -1;
perf_ui_init = dlsym(perf_gtk_handle, "perf_gtk__init");
if (perf_ui_init == NULL)
goto out_close;
if (perf_ui_init() == 0)
return 0;
out_close:
dlclose(perf_gtk_handle);
return -1;
}
static void exit_gtk_browser(bool wait_for_ok)
{
void (*perf_ui_exit)(bool);
if (perf_gtk_handle == NULL)
return;
perf_ui_exit = dlsym(perf_gtk_handle, "perf_gtk__exit");
if (perf_ui_exit == NULL)
goto out_close;
perf_ui_exit(wait_for_ok);
out_close:
dlclose(perf_gtk_handle);
perf_gtk_handle = NULL;
}
#else
static inline int setup_gtk_browser(void) { return -1; }
static inline void exit_gtk_browser(bool wait_for_ok __maybe_unused) {}
#endif
int stdio__config_color(const struct option *opt __maybe_unused,
const char *mode, int unset __maybe_unused)
{
perf_use_color_default = perf_config_colorbool("color.ui", mode, -1);
return 0;
}
void setup_browser(bool fallback_to_pager)
{
if (use_browser < 2 && (!isatty(1) || dump_trace))
use_browser = 0;
/* default to TUI */
if (use_browser < 0)
use_browser = 1;
switch (use_browser) {
case 2:
if (setup_gtk_browser() == 0)
break;
printf("GTK browser requested but could not find %s\n",
PERF_GTK_DSO);
sleep(1);
/* fall through */
case 1:
use_browser = 1;
if (ui__init() == 0)
break;
/* fall through */
default:
use_browser = 0;
if (fallback_to_pager)
setup_pager();
break;
}
}
void exit_browser(bool wait_for_ok)
{
switch (use_browser) {
case 2:
exit_gtk_browser(wait_for_ok);
break;
case 1:
ui__exit(wait_for_ok);
break;
default:
break;
}
}