diff options
Diffstat (limited to 'gr-audio/lib/jack')
| -rw-r--r-- | gr-audio/lib/jack/audio_jack_sink.cc | 236 | ||||
| -rw-r--r-- | gr-audio/lib/jack/audio_jack_sink.h | 79 | ||||
| -rw-r--r-- | gr-audio/lib/jack/audio_jack_source.cc | 237 | ||||
| -rw-r--r-- | gr-audio/lib/jack/audio_jack_source.h | 79 | ||||
| -rw-r--r-- | gr-audio/lib/jack/gr-audio-jack.conf | 8 | ||||
| -rw-r--r-- | gr-audio/lib/jack/gri_jack.cc | 30 | ||||
| -rw-r--r-- | gr-audio/lib/jack/gri_jack.h | 28 |
7 files changed, 697 insertions, 0 deletions
diff --git a/gr-audio/lib/jack/audio_jack_sink.cc b/gr-audio/lib/jack/audio_jack_sink.cc new file mode 100644 index 000000000..db365a1f8 --- /dev/null +++ b/gr-audio/lib/jack/audio_jack_sink.cc @@ -0,0 +1,236 @@ +/* -*- c++ -*- */ +/* + * Copyright 2005-2011 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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; either version 3, or (at your option) + * any later version. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "gr_audio_registry.h" +#include <audio_jack_sink.h> +#include <gr_io_signature.h> +#include <gr_prefs.h> +#include <stdio.h> +#include <iostream> +#include <stdexcept> +#include <gri_jack.h> + +#ifndef NO_PTHREAD +#include <pthread.h> +#endif + +AUDIO_REGISTER_SINK(REG_PRIO_MED, jack)( + int sampling_rate, const std::string &device_name, bool ok_to_block +){ + return audio_sink::sptr(new audio_jack_sink(sampling_rate, device_name, ok_to_block)); +} + +typedef jack_default_audio_sample_t sample_t; + + +// Number of jack buffers in the ringbuffer +// TODO: make it to match at least the quantity of items passed by work() +static const unsigned int N_BUFFERS = 16; + +static std::string +default_device_name () +{ + return gr_prefs::singleton()->get_string("audio_jack", "default_output_device", "gr_sink"); +} + +int +jack_sink_process (jack_nframes_t nframes, void *arg) +{ + audio_jack_sink *self = (audio_jack_sink *)arg; + unsigned int read_size = nframes*sizeof(sample_t); + + if (jack_ringbuffer_read_space (self->d_ringbuffer) < read_size) { + self->d_nunderuns++; + // FIXME: move this fputs out, we shouldn't use blocking calls in process() + fputs ("jU", stderr); + return 0; + } + + char *buffer = (char *) jack_port_get_buffer (self->d_jack_output_port, nframes); + + jack_ringbuffer_read (self->d_ringbuffer, buffer, read_size); + +#ifndef NO_PTHREAD + // Tell the sink thread there is room in the ringbuffer. + // If it is already running, the lock will not be available. + // We can't wait here in the process() thread, but we don't + // need to signal in that case, because the sink thread will + // check for room availability. + + if (pthread_mutex_trylock (&self->d_jack_process_lock) == 0) { + pthread_cond_signal (&self->d_ringbuffer_ready); + pthread_mutex_unlock (&self->d_jack_process_lock); + } +#endif + + return 0; +} + +// ---------------------------------------------------------------- + +audio_jack_sink::audio_jack_sink (int sampling_rate, + const std::string device_name, + bool ok_to_block) + : audio_sink ("audio_jack_sink", + gr_make_io_signature (0, 0, 0), + gr_make_io_signature (0, 0, 0)), + d_sampling_rate (sampling_rate), + d_device_name (device_name.empty() ? default_device_name() : device_name), + d_ok_to_block (ok_to_block), + d_jack_client (0), + d_ringbuffer (0), + d_nunderuns (0) +{ +#ifndef NO_PTHREAD + pthread_cond_init(&d_ringbuffer_ready, NULL);; + pthread_mutex_init(&d_jack_process_lock, NULL); +#endif + + // try to become a client of the JACK server + jack_options_t options = JackNullOption; + jack_status_t status; + const char *server_name = NULL; + if ((d_jack_client = jack_client_open (d_device_name.c_str (), + options, &status, + server_name)) == NULL) { + fprintf (stderr, "audio_jack_sink[%s]: jack server not running?\n", + d_device_name.c_str()); + throw std::runtime_error ("audio_jack_sink"); + } + + // tell the JACK server to call `jack_sink_process()' whenever + // there is work to be done. + jack_set_process_callback (d_jack_client, &jack_sink_process, (void*)this); + + // tell the JACK server to call `jack_shutdown()' if + // it ever shuts down, either entirely, or if it + // just decides to stop calling us. + + //jack_on_shutdown (d_jack_client, &jack_shutdown, (void*)this); + + d_jack_output_port = + jack_port_register (d_jack_client, "out", + JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0); + + + d_jack_buffer_size = jack_get_buffer_size (d_jack_client); + + set_output_multiple (d_jack_buffer_size); + + d_ringbuffer = + jack_ringbuffer_create (N_BUFFERS*d_jack_buffer_size*sizeof(sample_t)); + if (d_ringbuffer == NULL) + bail ("jack_ringbuffer_create failed", 0); + + assert(sizeof(float)==sizeof(sample_t)); + set_input_signature (gr_make_io_signature (1, 1, sizeof (sample_t))); + + + jack_nframes_t sample_rate = jack_get_sample_rate (d_jack_client); + + if ((jack_nframes_t)sampling_rate != sample_rate){ + fprintf (stderr, "audio_jack_sink[%s]: unable to support sampling rate %d\n", + d_device_name.c_str (), sampling_rate); + fprintf (stderr, " card requested %d instead.\n", sample_rate); + } +} + + +bool +audio_jack_sink::check_topology (int ninputs, int noutputs) +{ + if (ninputs != 1) + return false; + + // tell the JACK server that we are ready to roll + if (jack_activate (d_jack_client)) + throw std::runtime_error ("audio_jack_sink"); + + return true; +} + +audio_jack_sink::~audio_jack_sink () +{ + jack_client_close (d_jack_client); + jack_ringbuffer_free (d_ringbuffer); +} + +int +audio_jack_sink::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + // write_size and work_size are in bytes + int work_size = noutput_items*sizeof(sample_t); + unsigned int write_size; + + while (work_size > 0) { + unsigned int write_space; // bytes + +#ifdef NO_PTHREAD + while ((write_space=jack_ringbuffer_write_space (d_ringbuffer)) < + d_jack_buffer_size*sizeof(sample_t)) { + usleep(1000000*((d_jack_buffer_size-write_space/sizeof(sample_t))/d_sampling_rate)); + } +#else + // JACK actually requires POSIX + + pthread_mutex_lock (&d_jack_process_lock); + while ((write_space=jack_ringbuffer_write_space (d_ringbuffer)) < + d_jack_buffer_size*sizeof(sample_t)) { + + // wait until jack_sink_process() signals more room + pthread_cond_wait (&d_ringbuffer_ready, &d_jack_process_lock); + } + pthread_mutex_unlock (&d_jack_process_lock); +#endif + + write_space -= write_space%(d_jack_buffer_size*sizeof(sample_t)); + write_size = std::min(write_space, (unsigned int)work_size); + + if (jack_ringbuffer_write (d_ringbuffer, (char *) input_items[0], + write_size) < write_size) { + bail ("jack_ringbuffer_write failed", 0); + } + work_size -= write_size; + } + + return noutput_items; +} + +void +audio_jack_sink::output_error_msg (const char *msg, int err) +{ + fprintf (stderr, "audio_jack_sink[%s]: %s: %d\n", + d_device_name.c_str (), msg, err); +} + +void +audio_jack_sink::bail (const char *msg, int err) throw (std::runtime_error) +{ + output_error_msg (msg, err); + throw std::runtime_error ("audio_jack_sink"); +} diff --git a/gr-audio/lib/jack/audio_jack_sink.h b/gr-audio/lib/jack/audio_jack_sink.h new file mode 100644 index 000000000..a11863ee0 --- /dev/null +++ b/gr-audio/lib/jack/audio_jack_sink.h @@ -0,0 +1,79 @@ +/* -*- c++ -*- */ +/* + * Copyright 2005-2011 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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; either version 3, or (at your option) + * any later version. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ +#ifndef INCLUDED_AUDIO_JACK_SINK_H +#define INCLUDED_AUDIO_JACK_SINK_H + +#include <gr_audio_sink.h> +#include <string> +#include <jack/jack.h> +#include <jack/ringbuffer.h> +#include <stdexcept> + +int jack_sink_process (jack_nframes_t nframes, void *arg); + +/*! + * \brief audio sink using JACK + * + * The sink has one input stream of floats. + * + * Input samples must be in the range [-1,1]. + */ +class audio_jack_sink : public audio_sink { + + friend int jack_sink_process (jack_nframes_t nframes, void *arg); + + // typedef for pointer to class work method + typedef int (audio_jack_sink::*work_t)(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + + unsigned int d_sampling_rate; + std::string d_device_name; + bool d_ok_to_block; + + jack_client_t *d_jack_client; + jack_port_t *d_jack_output_port; + jack_ringbuffer_t *d_ringbuffer; + jack_nframes_t d_jack_buffer_size; + pthread_cond_t d_ringbuffer_ready; + pthread_mutex_t d_jack_process_lock; + + // random stats + int d_nunderuns; // count of underruns + + void output_error_msg (const char *msg, int err); + void bail (const char *msg, int err) throw (std::runtime_error); + + +public: + audio_jack_sink (int sampling_rate, const std::string device_name, bool ok_to_block); + + ~audio_jack_sink (); + + bool check_topology (int ninputs, int noutputs); + + int work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif /* INCLUDED_AUDIO_JACK_SINK_H */ diff --git a/gr-audio/lib/jack/audio_jack_source.cc b/gr-audio/lib/jack/audio_jack_source.cc new file mode 100644 index 000000000..415c7f22b --- /dev/null +++ b/gr-audio/lib/jack/audio_jack_source.cc @@ -0,0 +1,237 @@ +/* -*- c++ -*- */ +/* + * Copyright 2005,2006,2010 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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; either version 3, or (at your option) + * any later version. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "gr_audio_registry.h" +#include <audio_jack_source.h> +#include <gr_io_signature.h> +#include <gr_prefs.h> +#include <stdio.h> +#include <iostream> +#include <stdexcept> +#include <gri_jack.h> + +#ifndef NO_PTHREAD +#include <pthread.h> +#endif + +AUDIO_REGISTER_SOURCE(REG_PRIO_MED, jack)( + int sampling_rate, const std::string &device_name, bool ok_to_block +){ + return audio_source::sptr(new audio_jack_source(sampling_rate, device_name, ok_to_block)); +} + +typedef jack_default_audio_sample_t sample_t; + + +// Number of jack buffers in the ringbuffer +// TODO: make it to match at least the quantity of items passed to work() +static const unsigned int N_BUFFERS = 16; + +static std::string +default_device_name () +{ + return gr_prefs::singleton()->get_string("audio_jack", "default_input_device", "gr_source"); +} + + +int +jack_source_process (jack_nframes_t nframes, void *arg) +{ + audio_jack_source *self = (audio_jack_source *)arg; + unsigned int write_size = nframes*sizeof(sample_t); + + if (jack_ringbuffer_write_space (self->d_ringbuffer) < write_size) { + self->d_noverruns++; + // FIXME: move this fputs out, we shouldn't use blocking calls in process() + fputs ("jO", stderr); + return 0; + } + + char *buffer = (char *) jack_port_get_buffer (self->d_jack_input_port, nframes); + + jack_ringbuffer_write (self->d_ringbuffer, buffer, write_size); + +#ifndef NO_PTHREAD + // Tell the source thread there is data in the ringbuffer. + // If it is already running, the lock will not be available. + // We can't wait here in the process() thread, but we don't + // need to signal in that case, because the source thread will + // check for data availability. + + if (pthread_mutex_trylock (&self->d_jack_process_lock) == 0) { + pthread_cond_signal (&self->d_ringbuffer_ready); + pthread_mutex_unlock (&self->d_jack_process_lock); + } +#endif + + return 0; +} + +// ---------------------------------------------------------------- + +audio_jack_source::audio_jack_source (int sampling_rate, + const std::string device_name, + bool ok_to_block) + : audio_source ("audio_jack_source", + gr_make_io_signature (0, 0, 0), + gr_make_io_signature (0, 0, 0)), + d_sampling_rate (sampling_rate), + d_device_name (device_name.empty() ? default_device_name() : device_name), + d_ok_to_block(ok_to_block), + d_jack_client (0), + d_ringbuffer (0), + d_noverruns (0) +{ +#ifndef NO_PTHREAD + pthread_cond_init(&d_ringbuffer_ready, NULL);; + pthread_mutex_init(&d_jack_process_lock, NULL); +#endif + + // try to become a client of the JACK server + jack_options_t options = JackNullOption; + jack_status_t status; + const char *server_name = NULL; + if ((d_jack_client = jack_client_open (d_device_name.c_str (), + options, &status, + server_name)) == NULL) { + fprintf (stderr, "audio_jack_source[%s]: jack server not running?\n", + d_device_name.c_str()); + throw std::runtime_error ("audio_jack_source"); + } + + // tell the JACK server to call `jack_source_process()' whenever + // there is work to be done. + jack_set_process_callback (d_jack_client, &jack_source_process, (void*)this); + + // tell the JACK server to call `jack_shutdown()' if + // it ever shuts down, either entirely, or if it + // just decides to stop calling us. + + //jack_on_shutdown (d_jack_client, &jack_shutdown, (void*)this); + + d_jack_input_port = jack_port_register (d_jack_client, "in", + JACK_DEFAULT_AUDIO_TYPE, + JackPortIsInput, 0); + + + d_jack_buffer_size = jack_get_buffer_size (d_jack_client); + + set_output_multiple (d_jack_buffer_size); + + d_ringbuffer = jack_ringbuffer_create (N_BUFFERS*d_jack_buffer_size*sizeof(sample_t)); + if (d_ringbuffer == NULL) + bail ("jack_ringbuffer_create failed", 0); + + assert(sizeof(float)==sizeof(sample_t)); + set_output_signature (gr_make_io_signature (1, 1, sizeof (sample_t))); + + + jack_nframes_t sample_rate = jack_get_sample_rate (d_jack_client); + + if ((jack_nframes_t)sampling_rate != sample_rate){ + fprintf (stderr, "audio_jack_source[%s]: unable to support sampling rate %d\n", + d_device_name.c_str (), sampling_rate); + fprintf (stderr, " card requested %d instead.\n", sample_rate); + } +} + + +bool +audio_jack_source::check_topology (int ninputs, int noutputs) +{ + // tell the JACK server that we are ready to roll + if (jack_activate (d_jack_client)) + throw std::runtime_error ("audio_jack_source"); + + return true; +} + +audio_jack_source::~audio_jack_source () +{ + jack_client_close (d_jack_client); + jack_ringbuffer_free (d_ringbuffer); +} + +int +audio_jack_source::work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + // read_size and work_size are in bytes + unsigned int read_size; + + // Minimize latency + noutput_items = std::min (noutput_items, (int)d_jack_buffer_size); + + int work_size = noutput_items*sizeof(sample_t); + + while (work_size > 0) { + unsigned int read_space; // bytes + +#ifdef NO_PTHREAD + while ((read_space=jack_ringbuffer_read_space (d_ringbuffer)) < + d_jack_buffer_size*sizeof(sample_t)) { + usleep(1000000*((d_jack_buffer_size-read_space/sizeof(sample_t))/d_sampling_rate)); + } +#else + // JACK actually requires POSIX + + pthread_mutex_lock (&d_jack_process_lock); + while ((read_space=jack_ringbuffer_read_space (d_ringbuffer)) < + d_jack_buffer_size*sizeof(sample_t)) { + + // wait until jack_source_process() signals more data + pthread_cond_wait (&d_ringbuffer_ready, &d_jack_process_lock); + } + pthread_mutex_unlock (&d_jack_process_lock); +#endif + + read_space -= read_space%(d_jack_buffer_size*sizeof(sample_t)); + read_size = std::min(read_space, (unsigned int)work_size); + + if (jack_ringbuffer_read (d_ringbuffer, (char *) output_items[0], + read_size) < read_size) { + bail ("jack_ringbuffer_read failed", 0); + } + work_size -= read_size; + } + + return noutput_items; +} + +void +audio_jack_source::output_error_msg (const char *msg, int err) +{ + fprintf (stderr, "audio_jack_source[%s]: %s: %d\n", + d_device_name.c_str (), msg, err); +} + +void +audio_jack_source::bail (const char *msg, int err) throw (std::runtime_error) +{ + output_error_msg (msg, err); + throw std::runtime_error ("audio_jack_source"); +} diff --git a/gr-audio/lib/jack/audio_jack_source.h b/gr-audio/lib/jack/audio_jack_source.h new file mode 100644 index 000000000..858f34528 --- /dev/null +++ b/gr-audio/lib/jack/audio_jack_source.h @@ -0,0 +1,79 @@ +/* -*- c++ -*- */ +/* + * Copyright 2005-2011 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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; either version 3, or (at your option) + * any later version. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ +#ifndef INCLUDED_AUDIO_JACK_SOURCE_H +#define INCLUDED_AUDIO_JACK_SOURCE_H + +#include <gr_audio_source.h> +#include <string> +#include <jack/jack.h> +#include <jack/ringbuffer.h> +#include <stdexcept> + +int jack_source_process (jack_nframes_t nframes, void *arg); + +/*! + * \brief audio source using JACK + * + * The source has one input stream of floats. + * + * Output samples will be in the range [-1,1]. + */ +class audio_jack_source : public audio_source { + + friend int jack_source_process (jack_nframes_t nframes, void *arg); + + // typedef for pointer to class work method + typedef int (audio_jack_source::*work_t)(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + + unsigned int d_sampling_rate; + std::string d_device_name; + bool d_ok_to_block; + + jack_client_t *d_jack_client; + jack_port_t *d_jack_input_port; + jack_ringbuffer_t *d_ringbuffer; + jack_nframes_t d_jack_buffer_size; + pthread_cond_t d_ringbuffer_ready; + pthread_mutex_t d_jack_process_lock; + + // random stats + int d_noverruns; // count of overruns + + void output_error_msg (const char *msg, int err); + void bail (const char *msg, int err) throw (std::runtime_error); + + +public: + audio_jack_source (int sampling_rate, const std::string device_name, bool ok_to_block); + + ~audio_jack_source (); + + bool check_topology (int ninputs, int noutputs); + + int work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif /* INCLUDED_AUDIO_JACK_SOURCE_H */ diff --git a/gr-audio/lib/jack/gr-audio-jack.conf b/gr-audio/lib/jack/gr-audio-jack.conf new file mode 100644 index 000000000..bdbc1fd1d --- /dev/null +++ b/gr-audio/lib/jack/gr-audio-jack.conf @@ -0,0 +1,8 @@ +# This file contains system wide configuration data for GNU Radio. +# You may override any setting on a per-user basis by editing +# ~/.gnuradio/config.conf + +[audio_jack] + +default_input_device = gr_source +default_output_device = gr_sink diff --git a/gr-audio/lib/jack/gri_jack.cc b/gr-audio/lib/jack/gri_jack.cc new file mode 100644 index 000000000..fef1c58a6 --- /dev/null +++ b/gr-audio/lib/jack/gri_jack.cc @@ -0,0 +1,30 @@ +/* -*- c++ -*- */ +/* + * Copyright 2005 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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; either version 3, or (at your option) + * any later version. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <gri_jack.h> +#include <algorithm> + + diff --git a/gr-audio/lib/jack/gri_jack.h b/gr-audio/lib/jack/gri_jack.h new file mode 100644 index 000000000..ddc0b744d --- /dev/null +++ b/gr-audio/lib/jack/gri_jack.h @@ -0,0 +1,28 @@ +/* -*- c++ -*- */ +/* + * Copyright 2005 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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; either version 3, or (at your option) + * any later version. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GRI_JACK_H +#define INCLUDED_GRI_JACK_H + +#include <stdio.h> + +#endif /* INCLUDED_GRI_JACK_H */ |