posix/coil/Signal.cpp

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// -*- C++ -*-
#include <coil/config_coil.h>
#include <coil/Signal.h>
#include <string.h>

#ifdef COIL_OS_FREEBSD
#define _SIGSET_NWORDS _SIG_WORDS
#endif

namespace coil
{
  SignalAction::SignalAction()
    : m_handle(0), m_signum(0), m_mask(0), m_flags(0)
  {
  }

  SignalAction::SignalAction(SignalHandler handle, int signum)
    : m_handle(handle), m_signum(signum), m_mask(0), m_flags(0)
  {
    struct sigaction action;
    memset(&action, 0, sizeof(action));  // clear.
    action.sa_handler = m_handle;

    signal(m_signum, SIG_IGN);
    if (sigaction(m_signum, &action, 0) < 0)
      {
        signal(m_signum, SIG_DFL);
        m_handle = 0;
        m_signum = 0;
        m_mask   = 0;
        m_flags  = 0;
      }
  }

  SignalAction::~SignalAction()
  {
    signal(m_signum, SIG_DFL);
    m_handle = 0;
    m_signum = 0;
    m_mask   = 0;
    m_flags  = 0;
  }

};