ceph/src/tools/rbd_ggate/debug.cc

   1 #include "common/debug.h"
   2 #include "common/errno.h"
   3 #include "debug.h"
   4
   5 #define dout_context g_ceph_context
   6 #define dout_subsys ceph_subsys_rbd
   7 #undef dout_prefix
   8 #define dout_prefix *_dout << "rbd::ggate: "
   9
  10 extern "C" void debugv(int level, const char *fmt, va_list ap) {
  11     char *msg;
  12     int saved_errno = errno;
  13
  14     if (g_ceph_context == nullptr) {
  15         return;
  16     }
  17
  18     vasprintf(&msg, fmt, ap);
  19
  20     dout(level) << msg << dendl;
  21
  22     free(msg);
  23     errno = saved_errno;
  24 }
  25
  26 extern "C" void debug(int level, const char *fmt, ...) {
  27     va_list ap;
  28
  29     va_start(ap, fmt);
  30     debugv(level, fmt, ap);
  31     va_end(ap);
  32 }
  33
  34 extern "C" void errx(const char *fmt, ...) {
  35     va_list ap;
  36
  37     va_start(ap, fmt);
  38     debugv(-1, fmt, ap);
  39     va_end(ap);
  40 }
  41
  42 extern "C" void err(const char *fmt, ...) {
  43     va_list ap;
  44     char *msg;
  45     int saved_errno = errno;
  46
  47     va_start(ap, fmt);
  48     vasprintf(&msg, fmt, ap);
  49     va_end(ap);
  50     errno = saved_errno;
  51
  52     errx("%s: %s", msg, cpp_strerror(errno).c_str());
  53
  54     free(msg);
  55 }