mirror of https://github.com/python/cpython
Initial revision
This commit is contained in:
Guido van Rossum
parent
c888bf7cae
commit
9c52e0ff32
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/***********************************************************
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Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
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Netherlands.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the names of Stichting Mathematisch
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Centrum or CWI not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior permission.
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STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
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FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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******************************************************************/
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/* Sad objects */
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#include "allobjects.h"
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#include "modsupport.h"
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#include "structmember.h"
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#include <sys/ioctl.h>
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#include <sun/audioio.h>
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/* #define offsetof(str,mem) ((int)(((str *)0)->mem)) */
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typedef struct {
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OB_HEAD
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int x_fd; /* The open file */
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int x_icount; /* # samples read */
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int x_ocount; /* # samples written */
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int x_isctl; /* True if control device */
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} sadobject;
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typedef struct {
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OB_HEAD
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audio_info_t ai;
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} sadstatusobject;
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extern typeobject Sadtype; /* Really static, forward */
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extern typeobject Sadstatustype; /* Really static, forward */
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extern sadstatusobject *sads_alloc(); /* Forward */
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static object *SunAudioError;
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static int dummy_for_dl;
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#define is_sadobject(v) ((v)->ob_type == &Sadtype)
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#define is_sadstatusobject(v) ((v)->ob_type == &Sadstatustype)
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static sadobject *
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newsadobject(arg)
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object *arg;
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{
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sadobject *xp;
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int fd;
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char *mode;
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int imode;
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/* Check arg for r/w/rw */
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if ( !getargs(arg, "s", &mode) )
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return 0;
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if ( strcmp(mode, "r") == 0 )
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imode = 0;
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else if ( strcmp(mode, "w") == 0 )
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imode = 1;
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else if ( strcmp(mode, "rw") == 0 )
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imode = 2;
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else if ( strcmp(mode, "control") == 0 )
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imode = -1;
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else {
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err_setstr(SunAudioError,
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"Mode should be one of 'r', 'w', 'rw' or 'control'");
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return 0;
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}
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/* Open the correct device */
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if ( imode < 0 )
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fd = open("/dev/audioctl", 2); /* XXXX Chaeck that this works */
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else
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fd = open("/dev/audio", imode);
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if ( fd < 0 ) {
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err_errno(SunAudioError);
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return NULL;
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}
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/* Create and initialize the object */
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xp = NEWOBJ(sadobject, &Sadtype);
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if (xp == NULL)
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return NULL;
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xp->x_fd = fd;
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xp->x_icount = xp->x_ocount = 0;
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xp->x_isctl = (imode < 0);
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return xp;
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}
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/* Sad methods */
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static void
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sad_dealloc(xp)
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sadobject *xp;
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{
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close(xp->x_fd);
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DEL(xp);
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}
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static object *
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sad_read(self, args)
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sadobject *self;
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object *args;
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{
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int size, count;
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char *cp;
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object *rv;
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if ( !getargs(args, "i", &size) )
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return 0;
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rv = newsizedstringobject(NULL, size);
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if ( rv == NULL )
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return 0;
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cp = getstringvalue(rv);
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count = read(self->x_fd, cp, size);
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if ( count < 0 ) {
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DECREF(rv);
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err_errno(SunAudioError);
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return NULL;
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}
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if ( count != size )
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printf("sunaudio: funny read rv %d wtd %d\n", count, size);
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self->x_icount += count;
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return rv;
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}
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static object *
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sad_write(self, args)
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sadobject *self;
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object *args;
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{
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char *cp;
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int count, size;
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if ( !getargs(args, "s#", &cp, &size) )
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return 0;
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count = write(self->x_fd, cp, size);
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if ( count < 0 ) {
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err_errno(SunAudioError);
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return NULL;
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}
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if ( count != size )
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printf("sunaudio: funny write rv %d wanted %d\n", count, size);
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self->x_ocount += count;
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INCREF(None);
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return None;
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}
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static object *
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sad_getinfo(self, args)
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sadobject *self;
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object *args;
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{
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sadstatusobject *rv;
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if ( !getargs(args, "") )
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return NULL;
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rv = sads_alloc();
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if ( ioctl(self->x_fd, AUDIO_GETINFO, &rv->ai) < 0 ) {
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err_errno(SunAudioError);
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DECREF(rv);
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return NULL;
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}
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return (object *)rv;
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}
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static object *
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sad_setinfo(self, arg)
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sadobject *self;
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sadstatusobject *arg;
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{
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if ( !is_sadstatusobject(arg) ) {
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err_setstr(TypeError, "Must be sun audio status object");
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return NULL;
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}
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if ( ioctl(self->x_fd, AUDIO_SETINFO, &arg->ai) < 0 ) {
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err_errno(SunAudioError);
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return NULL;
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}
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INCREF(None);
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return None;
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}
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static object *
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sad_ibufcount(self, args)
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sadobject *self;
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object *args;
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{
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audio_info_t ai;
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object *rv;
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if ( !getargs(args, "") )
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return 0;
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if ( ioctl(self->x_fd, AUDIO_GETINFO, &ai) < 0 ) {
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err_errno(SunAudioError);
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return NULL;
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}
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rv = newintobject(ai.record.samples - self->x_icount);
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return rv;
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}
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static object *
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sad_obufcount(self, args)
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sadobject *self;
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object *args;
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{
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audio_info_t ai;
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object *rv;
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if ( !getargs(args, "") )
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return 0;
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if ( ioctl(self->x_fd, AUDIO_GETINFO, &ai) < 0 ) {
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err_errno(SunAudioError);
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return NULL;
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}
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rv = newintobject(self->x_ocount - ai.play.samples);
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return rv;
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}
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static object *
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sad_drain(self, args)
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sadobject *self;
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object *args;
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{
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if ( !getargs(args, "") )
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return 0;
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if ( ioctl(self->x_fd, AUDIO_DRAIN, 0) < 0 ) {
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err_errno(SunAudioError);
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return NULL;
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}
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INCREF(None);
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return None;
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}
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static struct methodlist sad_methods[] = {
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{ "read", sad_read },
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{ "write", sad_write },
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{ "ibufcount", sad_ibufcount },
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{ "obufcount", sad_obufcount },
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#define CTL_METHODS 4
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{ "getinfo", sad_getinfo },
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{ "setinfo", sad_setinfo },
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{ "drain", sad_drain },
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{NULL, NULL} /* sentinel */
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};
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static object *
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sad_getattr(xp, name)
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sadobject *xp;
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char *name;
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{
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if ( xp->x_isctl )
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return findmethod(sad_methods+CTL_METHODS, (object *)xp, name);
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else
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return findmethod(sad_methods, (object *)xp, name);
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}
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/* ----------------------------------------------------------------- */
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static sadstatusobject *
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sads_alloc() {
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sadstatusobject *rv;
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rv = NEWOBJ(sadstatusobject, &Sadstatustype);
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return rv;
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}
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static void
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sads_dealloc(xp)
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sadstatusobject *xp;
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{
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DEL(xp);
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}
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#define OFF(x) offsetof(audio_info_t,x)
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static struct memberlist sads_ml[] = {
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{ "i_sample_rate", T_UINT, OFF(record.sample_rate) },
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{ "i_channels", T_UINT, OFF(record.channels) },
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{ "i_precision", T_UINT, OFF(record.precision) },
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{ "i_encoding", T_UINT, OFF(record.encoding) },
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{ "i_gain", T_UINT, OFF(record.gain) },
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{ "i_port", T_UINT, OFF(record.port) },
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{ "i_samples", T_UINT, OFF(record.samples) },
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{ "i_eof", T_UINT, OFF(record.eof) },
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{ "i_pause", T_UBYTE, OFF(record.pause) },
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{ "i_error", T_UBYTE, OFF(record.error) },
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{ "i_waiting", T_UBYTE, OFF(record.waiting) },
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{ "i_open", T_UBYTE, OFF(record.open) , RO},
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{ "i_active", T_UBYTE, OFF(record.active) , RO},
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{ "o_sample_rate", T_UINT, OFF(play.sample_rate) },
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{ "o_channels", T_UINT, OFF(play.channels) },
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{ "o_precision", T_UINT, OFF(play.precision) },
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{ "o_encoding", T_UINT, OFF(play.encoding) },
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{ "o_gain", T_UINT, OFF(play.gain) },
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{ "o_port", T_UINT, OFF(play.port) },
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{ "o_samples", T_UINT, OFF(play.samples) },
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{ "o_eof", T_UINT, OFF(play.eof) },
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{ "o_pause", T_UBYTE, OFF(play.pause) },
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{ "o_error", T_UBYTE, OFF(play.error) },
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{ "o_waiting", T_UBYTE, OFF(play.waiting) },
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{ "o_open", T_UBYTE, OFF(play.open) , RO},
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{ "o_active", T_UBYTE, OFF(play.active) , RO},
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{ "monitor_gain", T_UINT, OFF(monitor_gain) },
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{ NULL, 0, 0},
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};
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static object *
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sads_getattr(xp, name)
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sadstatusobject *xp;
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char *name;
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{
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return getmember((char *)&xp->ai, sads_ml, name);
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}
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static int
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sads_setattr(xp, name, v)
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sadstatusobject *xp;
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char *name;
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object *v;
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{
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return setmember((char *)&xp->ai, sads_ml, name, v);
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}
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/* ------------------------------------------------------------------- */
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static typeobject Sadtype = {
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OB_HEAD_INIT(&Typetype)
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0, /*ob_size*/
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"sun_audio_device", /*tp_name*/
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sizeof(sadobject), /*tp_size*/
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0, /*tp_itemsize*/
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/* methods */
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sad_dealloc, /*tp_dealloc*/
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0, /*tp_print*/
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sad_getattr, /*tp_getattr*/
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0, /*tp_setattr*/
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0, /*tp_compare*/
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0, /*tp_repr*/
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};
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static typeobject Sadstatustype = {
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OB_HEAD_INIT(&Typetype)
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0, /*ob_size*/
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"sun_audio_device_status", /*tp_name*/
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sizeof(sadstatusobject), /*tp_size*/
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0, /*tp_itemsize*/
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/* methods */
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sads_dealloc, /*tp_dealloc*/
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0, /*tp_print*/
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sads_getattr, /*tp_getattr*/
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sads_setattr, /*tp_setattr*/
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0, /*tp_compare*/
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0, /*tp_repr*/
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};
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/* ------------------------------------------------------------------- */
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static object *
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sadopen(self, args)
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object *self;
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object *args;
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{
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object *rv;
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rv = (object *)newsadobject(args);
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return rv;
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}
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static struct methodlist sunaudiodev_methods[] = {
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{ "open", sadopen },
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{ 0, 0 },
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};
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void
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initsunaudiodev() {
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object *m, *d;
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m = initmodule("sunaudiodev", sunaudiodev_methods);
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d = getmoduledict(m);
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SunAudioError = newstringobject("sunaudiodev.error");
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if ( SunAudioError == NULL || dictinsert(d, "error", SunAudioError) )
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fatal("can't define sunaudiodev.error");
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}
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