forked from Minki/linux
175729fc2c
The cache.h header doesn't use any of the definitions in some of the headers it includes, ditch them and fix the fallout, where files were getting stuff they needed just because they were including it, sometimes not using what it really exports at all. 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: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-l6r2bmj8h1g3e01wr981on0n@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
177 lines
3.1 KiB
C
177 lines
3.1 KiB
C
#include <errno.h>
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#include <signal.h>
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#include <stdbool.h>
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#ifdef HAVE_BACKTRACE_SUPPORT
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#include <execinfo.h>
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#endif
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#include "../../util/cache.h"
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#include "../../util/debug.h"
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#include "../../util/util.h"
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#include "../browser.h"
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#include "../helpline.h"
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#include "../ui.h"
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#include "../util.h"
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#include "../libslang.h"
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#include "../keysyms.h"
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#include "tui.h"
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static volatile int ui__need_resize;
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extern struct perf_error_ops perf_tui_eops;
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extern bool tui_helpline__set;
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extern void hist_browser__init_hpp(void);
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void ui__refresh_dimensions(bool force)
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{
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if (force || ui__need_resize) {
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ui__need_resize = 0;
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pthread_mutex_lock(&ui__lock);
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SLtt_get_screen_size();
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SLsmg_reinit_smg();
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pthread_mutex_unlock(&ui__lock);
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}
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}
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static void ui__sigwinch(int sig __maybe_unused)
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{
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ui__need_resize = 1;
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}
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static void ui__setup_sigwinch(void)
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{
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static bool done;
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if (done)
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return;
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done = true;
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pthread__unblock_sigwinch();
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signal(SIGWINCH, ui__sigwinch);
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}
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int ui__getch(int delay_secs)
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{
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struct timeval timeout, *ptimeout = delay_secs ? &timeout : NULL;
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fd_set read_set;
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int err, key;
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ui__setup_sigwinch();
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FD_ZERO(&read_set);
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FD_SET(0, &read_set);
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if (delay_secs) {
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timeout.tv_sec = delay_secs;
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timeout.tv_usec = 0;
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}
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err = select(1, &read_set, NULL, NULL, ptimeout);
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if (err == 0)
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return K_TIMER;
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if (err == -1) {
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if (errno == EINTR)
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return K_RESIZE;
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return K_ERROR;
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}
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key = SLang_getkey();
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if (key != K_ESC)
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return key;
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FD_ZERO(&read_set);
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FD_SET(0, &read_set);
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timeout.tv_sec = 0;
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timeout.tv_usec = 20;
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err = select(1, &read_set, NULL, NULL, &timeout);
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if (err == 0)
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return K_ESC;
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SLang_ungetkey(key);
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return SLkp_getkey();
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}
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#ifdef HAVE_BACKTRACE_SUPPORT
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static void ui__signal_backtrace(int sig)
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{
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void *stackdump[32];
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size_t size;
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ui__exit(false);
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psignal(sig, "perf");
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printf("-------- backtrace --------\n");
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size = backtrace(stackdump, ARRAY_SIZE(stackdump));
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backtrace_symbols_fd(stackdump, size, STDOUT_FILENO);
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exit(0);
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}
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#else
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# define ui__signal_backtrace ui__signal
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#endif
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static void ui__signal(int sig)
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{
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ui__exit(false);
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psignal(sig, "perf");
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exit(0);
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}
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int ui__init(void)
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{
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int err;
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SLutf8_enable(-1);
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SLtt_get_terminfo();
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SLtt_get_screen_size();
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err = SLsmg_init_smg();
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if (err < 0)
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goto out;
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err = SLang_init_tty(-1, 0, 0);
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if (err < 0)
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goto out;
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err = SLkp_init();
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if (err < 0) {
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pr_err("TUI initialization failed.\n");
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goto out;
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}
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SLkp_define_keysym((char *)"^(kB)", SL_KEY_UNTAB);
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signal(SIGSEGV, ui__signal_backtrace);
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signal(SIGFPE, ui__signal_backtrace);
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signal(SIGINT, ui__signal);
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signal(SIGQUIT, ui__signal);
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signal(SIGTERM, ui__signal);
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perf_error__register(&perf_tui_eops);
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ui_helpline__init();
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ui_browser__init();
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tui_progress__init();
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hist_browser__init_hpp();
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out:
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return err;
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}
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void ui__exit(bool wait_for_ok)
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{
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if (wait_for_ok && tui_helpline__set)
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ui__question_window("Fatal Error",
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ui_helpline__last_msg,
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"Press any key...", 0);
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SLtt_set_cursor_visibility(1);
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SLsmg_refresh();
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SLsmg_reset_smg();
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SLang_reset_tty();
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perf_error__unregister(&perf_tui_eops);
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}
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