OpenBSD compilable :

- md5sum is not available.
- adding sndio support from Jacob Meuser <jakemsr@sdf.lonestar.org>.
- various patches from ajacoutot@, jasper@ and sthen@

configure.ac

@@ -165,15 +165,18 @@ CFLAGS="$ORIGINAL_CFLAGS"
 AC_MSG_CHECKING([platform dependencies])
 
 HOST_DEFAULT_TMP_DIR=/dev/shm
+USE_MD5SUM=1
 case "${host_os}" in
   freebsd*)
     # current FreeBSD header files conflict with the OSS driver's
     # barrier code, this may be fixed in 5.3, stay tuned.
     USE_BARRIER="no"
+    USE_MD5SUM=0
     ;;
   openbsd*)
     # pthread_barrier* not implemented
     USE_BARRIER="no"
+    USE_MD5SUM=0
     # need small realtime stack
     JACK_THREAD_STACK_TOUCH=10000
     ;;
@@ -189,6 +192,9 @@ case "${host_os}" in
 esac
 
 AC_SUBST(OS_LDFLAGS)
+AC_SUBST(USE_MD5SUM)
+AC_DEFINE_UNQUOTED(USE_MD5SUM,"$USE_MD5SUM",[Using md5sum command line if available])
+AM_CONDITIONAL(USE_MD5SUM, $USE_MD5SUM)
 
 #
 # We need to establish suitable defaults for a 64-bit OS
@@ -228,7 +234,7 @@ if test "x$JACK_USE_MACH_THREADS" != "x"; then
 fi
 
 # headers
-AC_CHECK_HEADERS(string.h strings.h alloca.h db.h, [],
+AC_CHECK_HEADERS(string.h strings.h db.h, [],
      AC_MSG_ERROR([*** a required header file is missing]))
 
 AC_CHECK_HEADERS(getopt.h, [], [
@@ -783,7 +789,7 @@ AC_SUBST(NETJACK_CFLAGS)
 
 # Check which backend drivers can be built.  The last one successfully
 # configured becomes the default JACK driver; so the order of
-# precedence is: alsa, sun, oss, coreaudio, portaudio, dummy.
+# precedence is: alsa, sun, oss, coreaudio, portaudio, sndio, dummy.
 
 JACK_DEFAULT_DRIVER=\"dummy\"
 
@@ -843,6 +849,20 @@ then
 fi
 AM_CONDITIONAL(HAVE_SUN, $HAVE_SUN)
 
+AC_ARG_ENABLE(sndio, AC_HELP_STRING([--disable-sndio],[ignore sndio driver ]),
+			TRY_SNDIO=$enableval , TRY_SNDIO=yes ) 
+HAVE_SNDIO="false"
+if test "x$TRY_SNDIO" = "xyes"
+then
+	# check for sndio audio API
+	AC_CHECK_HEADER([sndio.h],
+	     [HAVE_SNDIO="true"
+              JACK_DEFAULT_DRIVER=\"sndio\"])
+	SNDIO_LIBS="-lsndio"
+	AC_SUBST([SNDIO_LIBS])
+fi
+AM_CONDITIONAL(HAVE_SNDIO, $HAVE_SNDIO)
+
 AC_ARG_ENABLE(freebob, AC_HELP_STRING([--disable-freebob],[ignore FreeBob driver ]),
 			TRY_FREEBOB=$enableval , TRY_FREEBOB=yes )
 HAVE_FREEBOB="false"
@@ -975,6 +995,7 @@ drivers/alsa_midi/Makefile
 drivers/dummy/Makefile
 drivers/oss/Makefile
 drivers/sun/Makefile
+drivers/sndio/Makefile
 drivers/portaudio/Makefile
 drivers/coreaudio/Makefile
 drivers/freebob/Makefile
@@ -1006,6 +1027,7 @@ echo \| Build with old FireWire \(FreeBob\) support............. : $HAVE_FREEBOB
 echo \| Build with new FireWire \(FFADO\) support............... : $HAVE_FIREWIRE
 echo \| Build with OSS support................................ : $HAVE_OSS
 echo \| Build with Sun audio support.......................... : $HAVE_SUN
+echo \| Build with Sndio audio support........................ : $HAVE_SNDIO
 echo \| Build with CoreAudio support.......................... : $HAVE_COREAUDIO
 echo \| Build with PortAudio support.......................... : $HAVE_PA
 echo \| Build with Celt support............................... : $HAVE_CELT

drivers/Makefile.am

@@ -48,5 +48,11 @@ else
 FIREWIRE_DIR =
 endif
 
-SUBDIRS = $(ALSA_MIDI_DIR) $(ALSA_DIR) dummy $(OSS_DIR) $(SUN_DIR) $(PA_DIR) $(CA_DIR) $(FREEBOB_DIR) $(FIREWIRE_DIR) netjack
-DIST_SUBDIRS = alsa alsa_midi dummy oss sun portaudio coreaudio freebob firewire netjack
+if HAVE_SNDIO
+SNDIO_DIR = sndio
+else
+SNDIO_DIR =
+endif
+
+SUBDIRS = $(ALSA_MIDI_DIR) $(ALSA_DIR) dummy $(OSS_DIR) $(SUN_DIR) $(PA_DIR) $(CA_DIR) $(FREEBOB_DIR) $(FIREWIRE_DIR) ${SNDIO_DIR} netjack
+DIST_SUBDIRS = alsa alsa_midi dummy oss sun portaudio coreaudio freebob firewire netjack sndio

drivers/dummy/dummy_driver.c

@@ -111,6 +111,7 @@ dummy_driver_wait (dummy_driver_t *driver, int extra_fd, int *status,
 {
 	jack_nframes_t nframes = driver->period_size;
 	struct timespec now;
+    struct timespec ts;
 
 	*status = 0;
 	/* this driver doesn't work so well if we report a delay */
@@ -136,7 +137,9 @@ dummy_driver_wait (dummy_driver_t *driver, int extra_fd, int *status,
 		}
 		driver->next_wakeup = add_ts (driver->next_wakeup, driver->wait_time);
 	} else {
-		if (clock_nanosleep (CLOCK_REALTIME, TIMER_ABSTIME, &driver->next_wakeup, NULL)) {
+        ts.tv_sec = 0;
+        ts.tv_nsec = ts_to_nsec(driver->next_wakeup) - ts_to_nsec(now);
+		if (nanosleep (&ts, NULL)) {
 			jack_error ("error while sleeping");
 			*status = -1;
 		} else {

drivers/sndio/Makefile.am

@@ -0,0 +1,13 @@
+MAINTAINCLEANFILES = Makefile.in
+
+AM_CFLAGS = $(JACK_CFLAGS)
+
+plugindir = $(ADDON_DIR)
+
+plugin_LTLIBRARIES = jack_sndio.la
+
+jack_sndio_la_LDFLAGS = -module -avoid-version
+jack_sndio_la_LIBADD = $(SNDIO_LIBS)
+jack_sndio_la_SOURCES = sndio_driver.c sndio_driver.h
+
+noinst_HEADERS = sndio_driver.h

drivers/sndio/sndio_driver.h

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2009 Jacob Meuser <jakemsr@sdf.lonestar.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __JACK_SNDIO_DRIVER_H__
+#define __JACK_SNDIO_DRIVER_H__
+
+#include <sys/types.h>
+#include <pthread.h>
+#include <semaphore.h>
+
+#include <jack/types.h>
+#include <jack/jslist.h>
+#include <driver.h>
+#include <jack/jack.h>
+
+#define SNDIO_DRIVER_DEF_DEV		"default"
+#define SNDIO_DRIVER_DEF_FS		44100
+#define SNDIO_DRIVER_DEF_BLKSIZE	1024
+#define SNDIO_DRIVER_DEF_NPERIODS	2
+#define SNDIO_DRIVER_DEF_BITS		16
+#define SNDIO_DRIVER_DEF_INS		2
+#define SNDIO_DRIVER_DEF_OUTS		2
+
+typedef jack_default_audio_sample_t jack_sample_t;
+
+typedef struct _sndio_driver
+{
+	JACK_DRIVER_NT_DECL
+
+	jack_nframes_t sample_rate;
+	jack_nframes_t period_size;
+	jack_nframes_t orig_period_size;
+	unsigned int nperiods;
+	int bits;
+	unsigned int capture_channels;
+	unsigned int playback_channels;
+	jack_nframes_t sys_cap_latency;
+	jack_nframes_t sys_play_latency;
+	int ignorehwbuf;
+
+	struct sio_hdl *hdl;
+	char *dev;
+
+	void *capbuf;
+	size_t capbufsize;
+	void *playbuf;
+	size_t playbufsize;
+	JSList *capture_ports;
+	JSList *playback_ports;
+
+	int sample_bytes;
+	size_t pprime;
+
+	int poll_timeout;
+	jack_time_t poll_next;
+
+	jack_client_t *client;
+
+} sndio_driver_t;
+
+#endif

jackd/Makefile.am

@@ -37,7 +37,11 @@ jack_md5.h: jackd
 if STRIPPED_JACKD
 	strip -R .note -R .comment .libs/jackd
 endif
+if USE_MD5SUM
 	echo "#define JACKD_MD5_SUM \"`md5sum .libs/jackd | awk '{print $$1}'`\"" > jack_md5.h
+else
+	echo "#define JACKD_MD5_SUM \"`md5 -q .libs/jackd | awk '{print $$1}'`\"" > jack_md5.h
+endif
 
 jackstart_SOURCES = jackstart.c md5.c
 jackstart_LDFLAGS = -lcap

jackd/controlapi.c

@@ -843,7 +843,7 @@ get_realtime_priority_constraint ()
 
 	return constraint_ptr;
 #else
-	return NULL
+	return NULL;
 #endif
 }
 

jackd/engine.c

@@ -1429,7 +1429,7 @@ handle_external_client_request (jack_engine_t *engine, int fd)
 	if ((r = read (client->request_fd, &req, sizeof(req)))
 	    < (ssize_t)sizeof(req)) {
 		if (r == 0) {
-#ifdef JACK_USE_MACH_THREADS
+#if defined(JACK_USE_MACH_THREADS) || defined(__OpenBSD__)
 			/* poll is implemented using
 			   select (see the macosx/fakepoll
 			   code). When the socket is closed

jackd/jackd.1.in

@@ -28,7 +28,7 @@ For the latest JACK information, please consult the web site,
 .br
 Select the audio interface backend.  The current list of supported
 backends is: \fBalsa\fR, \fBcoreaudio\fR, \fBdummy\fR, \fBfreebob\fR,
-\fBoss\fR \fBsun\fR and \fBportaudio\fR.  They are not all available
+\fBoss\fR \fBsun\fR \fBportaudio\fR and \fB sndio.  They are not all available
 on all platforms.  All \fIbackend\-parameters\fR are optional.
 .TP
 \fB\-h, \-\-help\fR
@@ -523,6 +523,43 @@ Driver name (default: none)
 .TP
 \fB\-z \-\-dither\fR
 Dithering mode (default: none)
+.SS SNDIO BACKEND PARAMETERS
+.TP
+\fB\-r, \-\-rate \fIint\fR
+Specify the sample rate.  The default is 44100.
+.TP
+\fB\-p, \-\-period \fIint\fR
+Specify the number of frames between JACK \fBprocess()\fR calls.  This
+value must be a power of 2, and the default is 1024.  If you need low 
+latency, set \fB\-p\fR as low as you can go without seeing xruns.  A larger 
+period size yields higher latency, but makes xruns less likely.  The JACK 
+capture latency in seconds is \fB\-\-period\fR divided by \fB\-\-rate\fR.
+Note that this value is mostly advisory when aucat server is running
+and may be updated internally.
+.TP
+\fB\-n, \-\-nperiods \fIint\fR
+Specify the number of periods in the hardware buffer.  The default is
+2.  The period size (\fB\-p\fR) times \fB\-\-nperiods\fR times four
+(assuming 2 channels 16-bit samples) is the JACK buffer size in bytes.
+The JACK output latency in seconds is \fB\-\-nperiods\fR times
+\fB\-\-period\fR divided by \fB\-\-rate\fR.
+Note that this value is mostly advisory when aucat server is running
+and may be updated internally.
+.TP
+\fB\-w, \-\-wordlength \fIint\fR
+Specify the sample size in bits. The default is 16.
+.TP
+\fB\-i, \-\-inchannels \fIint\fR
+Specify how many channels to capture (default: 2)
+.TP
+\fB\-o, \-\-outchannels \fIint\fR
+Specify number of playback channels (default: 2)
+.TP
+\fB\-d, \-\-device \fIdevice_file\fR
+Specify device for capture and playback (default: NULL)
+.TP
+\fB\-b, \-\-ignorehwbuf \fIboolean\fR
+Specify, whether to ignore hardware period size (default: false)
 .SH "EXAMPLES"
 .PP
 Print usage message for the parameters specific to each backend.
@@ -544,6 +581,8 @@ Print usage message for the parameters specific to each backend.
 \fBjackd \-d sun \-\-help\fR
 .br
 \fBjackd \-d portaudio \-\-help\fR
+.br
+\fBjackd \-d sndio \-\-help\fR
 .PP
 Run the JACK daemon with realtime priority using the first ALSA
 hardware card defined in \fB/etc/modules.conf\fR.

jackd/jackd.c

@@ -537,7 +537,7 @@ static void usage (FILE *file)
 #ifdef __APPLE__
 		 "             Available backends may include: coreaudio, dummy, net, portaudio.\n\n"
 #else
-		 "             Available backends may include: alsa, dummy, freebob, firewire, net, oss, sun, or portaudio.\n\n"
+		 "             Available backends may include: alsa, dummy, freebob, firewire, net, oss, sun, portaudio or sndio.\n\n"
 #endif
 		 "       jackd -d backend --help\n"
 		 "             to display options for each backend\n\n");