system_cmds-735.tar.gz

[apple/system_cmds.git] / msa / WriteTraceFileAction.cpp

diff --git a/msa/WriteTraceFileAction.cpp b/msa/WriteTraceFileAction.cpp
deleted file mode 100644 (file)
index 65c63c8..0000000
--- a/msa/WriteTraceFileAction.cpp
+++ /dev/null
@@ -1,74 +0,0 @@
-//
-//  WriteTraceFileAction.cpp
-//  system_cmds
-//
-//  Created by James McIlree on 4/29/14.
-//
-//
-
-#include "global.h"
-
-static bool shouldProcessEvents;
-static uint32_t sigintCount;
-
-static bool start_tracing(Globals& globals)
-{
-       if (!KDBG::reset()) return false;
-       if (!KDBG::set_buffer_capacity(globals.trace_buffer_size())) return false;
-       if (!KDBG::set_nowrap(false)) return false;
-       if (!KDBG::initialize_buffers()) return false;
-       if (!KDBG::set_enabled(KDEBUG_ENABLE_TRACE)) return false;
-
-       return true;
-}
-
-static void end_tracing(void)
-{
-       KDBG::reset();
-}
-
-static void signal_handler_ctrl_C(int sig)
-{
-       shouldProcessEvents = false;
-       if (++sigintCount >= 5) {
-               // Not responding, nuke it from orbit.
-               exit(1);
-       }
-}
-
-void WriteTraceFileAction::execute(Globals& globals) {
-       FileDescriptor fd(open(_path.c_str(), O_TRUNC|O_WRONLY|O_CREAT, 0777));
-       if (!fd.is_open()) {
-               log_msg(ASL_LEVEL_ERR, "Unable to write to %s\n", _path.c_str());
-               return;
-       }
-
-       shouldProcessEvents = true;
-       sigintCount = 0;
-
-       VoucherContentSysctl contents(globals.should_trace_voucher_contents());
-
-       AbsTime t1 = AbsTime::now();
-       if (start_tracing(globals)) {
-               // We cannot write the "maps" until after tracing has started.
-               if (KDBG::write_maps(fd)) {
-                       signal(SIGINT, signal_handler_ctrl_C);
-
-                       while (shouldProcessEvents) {
-                               int events_written = KDBG::write_events(fd);
-                               AbsTime t2 = AbsTime::now();
-                               if (events_written != -1) {
-                                       printf("wrote %d events - elapsed time = %.1f secs\n", events_written, (double)(t2 - t1).nano_time().value() / (double)NANOSECONDS_PER_SECOND);
-                               } else {
-                                       log_msg(ASL_LEVEL_WARNING, "write events returned -1\n");
-                                       break;
-                               }
-                               t1 = t2;
-                       }
-
-                       signal(SIGINT, SIG_DFL);
-               }
-       }
-
-       end_tracing();
-}