jack2/android/JackControlAPIAndroid.cpp

// u/* -*- Mode: C++ ; c-basic-offset: 4 -*- */
/*
  JACK control API implementation

  Copyright (C) 2008 Nedko Arnaudov
  Copyright (C) 2008 Grame
  Copyright (C) 2013 Samsung Electronics

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; version 2 of the License.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef WIN32
#include <stdint.h>
#include <dirent.h>
#include <pthread.h>
#endif

#include "types.h"
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <assert.h>
#include <signal.h>

#include "JackControlAPIAndroid.h"
#include "JackConstants.h"
#include "JackServerGlobals.h"

using namespace Jack;

struct jackctl_sigmask
{
    sigset_t signals;
};

static jackctl_sigmask sigmask;

SERVER_EXPORT int
jackctl_wait_signals_and_return(jackctl_sigmask_t * sigmask)
{
    int sig;
    bool waiting = true;

    while (waiting) {
    #if defined(sun) && !defined(__sun__) // SUN compiler only, to check
        sigwait(&sigmask->signals);
    #else
        sigwait(&sigmask->signals, &sig);
    #endif
        fprintf(stderr, "Jack main caught signal %d\n", sig);

        switch (sig) {
            case SIGUSR1:
                //jack_dump_configuration(engine, 1);
                break;
            case SIGUSR2:
                // driver exit
                waiting = false;
                break;
            case SIGTTOU:
                break;
            default:
                waiting = false;
                break;
        }
    }

    if (sig != SIGSEGV) {
        // unblock signals so we can see them during shutdown.
        // this will help prod developers not to lose sight of
        // bugs that cause segfaults etc. during shutdown.
        sigprocmask(SIG_UNBLOCK, &sigmask->signals, 0);
    }

    return sig;
}