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c3c7ac8ba7
exceptie heeft nu in dat geval als argument "no disc in player", behalve wanneer de bibliotheek routine errno zet. In dat laatste geval wordt (nog steeds) err_errno() gebruikt. Wanneer een routine uit de bibliotheek faalt wordt nu altijd een IOError gegenereerd. Een RuntimeError treedt alleen op bij verkeerde argumenten.
881 lines
18 KiB
C
881 lines
18 KiB
C
/**********************************************************
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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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/* CD module -- interface to Mark Callow's and Roger Chickering's */
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/* CD Audio Library (CD). */
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#include <sys/types.h>
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#include <cdaudio.h>
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#include "allobjects.h"
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#include "import.h"
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#include "modsupport.h"
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#include "compile.h"
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#include "ceval.h"
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#define NCALLBACKS 8
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typedef struct {
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OB_HEAD
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CDPLAYER *ob_cdplayer;
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} cdplayerobject;
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#define CheckPlayer(self) if ((self)->ob_cdplayer == NULL) { \
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err_setstr(RuntimeError, "no player active"); \
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return NULL; \
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}
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#define CheckParser(self) if ((self)->ob_cdparser == NULL) { \
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err_setstr(RuntimeError, "no parser active"); \
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return NULL; \
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}
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static object *
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CD_allowremoval(self, args)
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cdplayerobject *self;
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object *args;
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{
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CheckPlayer(self);
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if (!getnoarg(args))
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return NULL;
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CDallowremoval(self->ob_cdplayer);
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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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CD_preventremoval(self, args)
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cdplayerobject *self;
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object *args;
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{
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CheckPlayer(self);
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if (!getnoarg(args))
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return NULL;
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CDpreventremoval(self->ob_cdplayer);
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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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CD_bestreadsize(self, args)
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cdplayerobject *self;
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object *args;
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{
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CheckPlayer(self);
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if (!getnoarg(args))
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return NULL;
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return newintobject((long) CDbestreadsize(self->ob_cdplayer));
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}
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static object *
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CD_close(self, args)
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cdplayerobject *self;
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object *args;
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{
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CheckPlayer(self);
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if (!getnoarg(args))
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return NULL;
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if (!CDclose(self->ob_cdplayer)) {
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err_errno(IOError); /* XXX - ??? */
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return NULL;
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}
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self->ob_cdplayer = NULL;
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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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CD_eject(self, args)
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cdplayerobject *self;
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object *args;
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{
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CDSTATUS status;
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CheckPlayer(self);
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if (!getnoarg(args))
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return NULL;
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if (!CDeject(self->ob_cdplayer)) {
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if (CDgetstatus(self->ob_cdplayer, &status) &&
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status.state == CD_NODISC)
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err_setstr(IOError, "no disc in player");
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else
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err_setstr(IOError, "eject failed");
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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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CD_getstatus(self, args)
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cdplayerobject *self;
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object *args;
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{
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CDSTATUS status;
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CheckPlayer(self);
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if (!getnoarg(args))
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return NULL;
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if (!CDgetstatus(self->ob_cdplayer, &status)) {
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err_errno(IOError); /* XXX - ??? */
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return NULL;
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}
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return mkvalue("(ii(iii)(iii)(iii)iiii(iii))", status.state,
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status.track, status.min, status.sec, status.frame,
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status.abs_min, status.abs_sec, status.abs_frame,
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status.total_min, status.total_sec, status.total_frame,
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status.first, status.last, status.scsi_audio,
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status.cur_block, status.polyfilla[0],
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status.polyfilla[1], status.polyfilla[2]);
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}
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static object *
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CD_gettrackinfo(self, args)
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cdplayerobject *self;
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object *args;
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{
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int track;
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CDTRACKINFO info;
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CDSTATUS status;
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CheckPlayer(self);
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if (!getargs(args, "i", &track))
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return NULL;
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if (!CDgettrackinfo(self->ob_cdplayer, track, &info)) {
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if (CDgetstatus(self->ob_cdplayer, &status) &&
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status.state == CD_NODISC)
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err_setstr(IOError, "no disc in player");
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else
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err_setstr(IOError, "gettrackinfo failed");
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return NULL;
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}
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return mkvalue("((iii)(iii))",
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info.start_min, info.start_sec, info.start_frame,
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info.total_min, info.total_sec, info.total_frame);
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}
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static object *
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CD_msftoblock(self, args)
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cdplayerobject *self;
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object *args;
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{
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int min, sec, frame;
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unsigned long block;
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CheckPlayer(self);
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if (!getargs(args, "(iii)", &min, &sec, &frame))
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return NULL;
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block = CDmsftoblock(self->ob_cdplayer, min, sec, frame);
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return newintobject((long) block);
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}
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static object *
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CD_play(self, args)
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cdplayerobject *self;
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object *args;
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{
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int start, play;
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CDSTATUS status;
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CheckPlayer(self);
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if (!getargs(args, "(ii)", &start, &play))
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return NULL;
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if (!CDplay(self->ob_cdplayer, start, play)) {
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if (CDgetstatus(self->ob_cdplayer, &status) &&
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status.state == CD_NODISC)
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err_setstr(IOError, "no disc in player");
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else
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err_setstr(IOError, "play failed");
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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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CD_playabs(self, args)
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cdplayerobject *self;
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object *args;
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{
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int min, sec, frame, play;
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CDSTATUS status;
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CheckPlayer(self);
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if (!getargs(args, "(iiii)", &min, &sec, &frame, &play))
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return NULL;
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if (!CDplayabs(self->ob_cdplayer, min, sec, frame, play)) {
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if (CDgetstatus(self->ob_cdplayer, &status) &&
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status.state == CD_NODISC)
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err_setstr(IOError, "no disc in player");
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else
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err_setstr(IOError, "playabs failed");
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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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CD_playtrack(self, args)
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cdplayerobject *self;
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object *args;
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{
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int start, play;
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CDSTATUS status;
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CheckPlayer(self);
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if (!getargs(args, "(ii)", &start, &play))
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return NULL;
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if (!CDplaytrack(self->ob_cdplayer, start, play)) {
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if (CDgetstatus(self->ob_cdplayer, &status) &&
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status.state == CD_NODISC)
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err_setstr(IOError, "no disc in player");
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else
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err_setstr(IOError, "playtrack failed");
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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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CD_playtrackabs(self, args)
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cdplayerobject *self;
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object *args;
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{
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int track, min, sec, frame, play;
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CDSTATUS status;
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CheckPlayer(self);
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if (!getargs(args, "(iiiii)", &track, &min, &sec, &frame, &play))
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return NULL;
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if (!CDplaytrackabs(self->ob_cdplayer, track, min, sec, frame, play)) {
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if (CDgetstatus(self->ob_cdplayer, &status) &&
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status.state == CD_NODISC)
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err_setstr(IOError, "no disc in player");
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else
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err_setstr(IOError, "playtrackabs failed");
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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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CD_readda(self, args)
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cdplayerobject *self;
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object *args;
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{
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int numframes, n;
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object *result;
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CheckPlayer(self);
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if (!getargs(args, "i", &numframes))
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return NULL;
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result = newsizedstringobject(NULL, numframes * sizeof(CDFRAME));
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if (result == NULL)
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return NULL;
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n = CDreadda(self->ob_cdplayer, (CDFRAME *) getstringvalue(result), numframes);
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if (n == -1) {
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DECREF(result);
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err_errno(IOError); /* XXX - ??? (seems to work) */
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return NULL;
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}
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if (n < numframes)
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if (resizestring(&result, n * sizeof(CDFRAME)))
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return NULL;
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return result;
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}
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static object *
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CD_seek(self, args)
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cdplayerobject *self;
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object *args;
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{
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int min, sec, frame;
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long block;
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CheckPlayer(self);
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if (!getargs(args, "(iii)", &min, &sec, &frame))
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return NULL;
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block = CDseek(self->ob_cdplayer, min, sec, frame);
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if (block == -1) {
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err_errno(IOError);
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return NULL;
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}
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return newintobject(block);
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}
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static object *
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CD_seektrack(self, args)
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cdplayerobject *self;
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object *args;
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{
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int track;
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long block;
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CheckPlayer(self);
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if (!getargs(args, "i", &track))
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return NULL;
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block = CDseektrack(self->ob_cdplayer, track);
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if (block == -1) {
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err_errno(IOError);
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return NULL;
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}
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return newintobject(block);
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}
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static object *
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CD_stop(self, args)
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cdplayerobject *self;
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object *args;
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{
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CDSTATUS status;
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CheckPlayer(self);
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if (!getnoarg(args))
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return NULL;
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if (!CDstop(self->ob_cdplayer)) {
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if (CDgetstatus(self->ob_cdplayer, &status) &&
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status.state == CD_NODISC)
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err_setstr(IOError, "no disc in player");
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else
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err_setstr(IOError, "stop failed");
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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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CD_togglepause(self, args)
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cdplayerobject *self;
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object *args;
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{
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CDSTATUS status;
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CheckPlayer(self);
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if (!getnoarg(args))
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return NULL;
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if (!CDtogglepause(self->ob_cdplayer)) {
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if (CDgetstatus(self->ob_cdplayer, &status) &&
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status.state == CD_NODISC)
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err_setstr(IOError, "no disc in player");
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else
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err_setstr(IOError, "togglepause failed");
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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 cdplayer_methods[] = {
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{"allowremoval", CD_allowremoval},
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{"bestreadsize", CD_bestreadsize},
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{"close", CD_close},
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{"eject", CD_eject},
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{"getstatus", CD_getstatus},
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{"gettrackinfo", CD_gettrackinfo},
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{"msftoblock", CD_msftoblock},
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{"play", CD_play},
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{"playabs", CD_playabs},
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{"playtrack", CD_playtrack},
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{"playtrackabs", CD_playtrackabs},
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{"preventremoval", CD_preventremoval},
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{"readda", CD_readda},
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{"seek", CD_seek},
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{"seektrack", CD_seektrack},
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{"stop", CD_stop},
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{"togglepause", CD_togglepause},
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{NULL, NULL} /* sentinel */
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};
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static void
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cdplayer_dealloc(self)
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cdplayerobject *self;
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{
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if (self->ob_cdplayer != NULL)
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CDclose(self->ob_cdplayer);
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DEL(self);
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}
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static object *
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cdplayer_getattr(cdp, name)
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cdplayerobject *cdp;
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char *name;
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{
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return findmethod(cdplayer_methods, (object *)cdp, name);
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}
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typeobject CdPlayertype = {
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OB_HEAD_INIT(&Typetype)
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0, /*ob_size*/
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"cdplayer", /*tp_name*/
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sizeof(cdplayerobject), /*tp_size*/
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0, /*tp_itemsize*/
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/* methods */
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cdplayer_dealloc, /*tp_dealloc*/
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0, /*tp_print*/
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cdplayer_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 object *
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newcdplayerobject(cdp)
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CDPLAYER *cdp;
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{
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cdplayerobject *p;
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p = NEWOBJ(cdplayerobject, &CdPlayertype);
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if (p == NULL)
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return NULL;
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p->ob_cdplayer = cdp;
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return (object *) p;
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}
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static object *
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CD_open(self, args)
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object *self, *args;
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{
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char *dev, *direction;
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CDPLAYER *cdp;
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/*
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* Variable number of args.
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* First defaults to "None", second defaults to "r".
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*/
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dev = NULL;
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direction = "r";
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if (!getnoarg(args)) {
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err_clear();
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if (!getargs(args, "z", &dev)) {
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err_clear();
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if (!getargs(args, "(zs)", &dev, &direction))
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return NULL;
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}
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}
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cdp = CDopen(dev, direction);
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if (cdp == NULL) {
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err_errno(IOError);
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return NULL;
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}
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return newcdplayerobject(cdp);
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}
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typedef struct {
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OB_HEAD
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CDPARSER *ob_cdparser;
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struct {
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object *ob_cdcallback;
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object *ob_cdcallbackarg;
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} ob_cdcallbacks[NCALLBACKS];
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} cdparserobject;
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static void
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CD_callback(arg, type, data)
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void *arg;
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CDDATATYPES type;
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void *data;
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{
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object *result, *args, *v;
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char *p;
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int i;
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cdparserobject *self;
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self = (cdparserobject *) arg;
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args = newtupleobject(3);
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if (args == NULL)
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return;
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INCREF(self->ob_cdcallbacks[type].ob_cdcallbackarg);
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settupleitem(args, 0, self->ob_cdcallbacks[type].ob_cdcallbackarg);
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settupleitem(args, 1, newintobject((long) type));
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switch (type) {
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case cd_audio:
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v = newsizedstringobject(data, CDDA_DATASIZE);
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break;
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case cd_pnum:
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case cd_index:
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v = newintobject(((CDPROGNUM *) data)->value);
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break;
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case cd_ptime:
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case cd_atime:
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#define ptr ((struct cdtimecode *) data)
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v = mkvalue("(iii)", ptr->mhi * 10 + ptr->mlo,
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ptr->shi * 10 + ptr->slo,
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ptr->fhi * 10 + ptr->flo);
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#undef ptr
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break;
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case cd_catalog:
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v = newsizedstringobject(NULL, 13);
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p = getstringvalue(v);
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for (i = 0; i < 13; i++)
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*p++ = ((char *) data)[i] + '0';
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break;
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case cd_ident:
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v = newsizedstringobject(NULL, 12);
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p = getstringvalue(v);
|
|
CDsbtoa(p, ((struct cdident *) data)->country, 2);
|
|
p += 2;
|
|
CDsbtoa(p, ((struct cdident *) data)->owner, 3);
|
|
p += 3;
|
|
*p++ = ((struct cdident *) data)->year[0] + '0';
|
|
*p++ = ((struct cdident *) data)->year[1] + '0';
|
|
*p++ = ((struct cdident *) data)->serial[0] + '0';
|
|
*p++ = ((struct cdident *) data)->serial[1] + '0';
|
|
*p++ = ((struct cdident *) data)->serial[2] + '0';
|
|
*p++ = ((struct cdident *) data)->serial[3] + '0';
|
|
*p++ = ((struct cdident *) data)->serial[4] + '0';
|
|
break;
|
|
case cd_control:
|
|
v = newintobject((long) *((unchar *) data));
|
|
break;
|
|
}
|
|
settupleitem(args, 2, v);
|
|
if (err_occurred()) {
|
|
DECREF(args);
|
|
return;
|
|
}
|
|
|
|
result = call_object(self->ob_cdcallbacks[type].ob_cdcallback, args);
|
|
DECREF(args);
|
|
XDECREF(result);
|
|
}
|
|
|
|
static object *
|
|
CD_deleteparser(self, args)
|
|
cdparserobject *self;
|
|
object *args;
|
|
{
|
|
int i;
|
|
|
|
CheckParser(self);
|
|
|
|
if (!getnoarg(args))
|
|
return NULL;
|
|
|
|
CDdeleteparser(self->ob_cdparser);
|
|
self->ob_cdparser = NULL;
|
|
|
|
/* no sense in keeping the callbacks, so remove them */
|
|
for (i = 0; i < NCALLBACKS; i++) {
|
|
XDECREF(self->ob_cdcallbacks[i].ob_cdcallback);
|
|
self->ob_cdcallbacks[i].ob_cdcallback = NULL;
|
|
XDECREF(self->ob_cdcallbacks[i].ob_cdcallbackarg);
|
|
self->ob_cdcallbacks[i].ob_cdcallbackarg = NULL;
|
|
}
|
|
|
|
INCREF(None);
|
|
return None;
|
|
}
|
|
|
|
static object *
|
|
CD_parseframe(self, args)
|
|
cdparserobject *self;
|
|
object *args;
|
|
{
|
|
char *cdfp;
|
|
int length;
|
|
CDFRAME *p;
|
|
|
|
CheckParser(self);
|
|
|
|
if (!getargs(args, "s#", &cdfp, &length))
|
|
return NULL;
|
|
|
|
if (length % sizeof(CDFRAME) != 0) {
|
|
err_setstr(RuntimeError, "bad length");
|
|
return NULL;
|
|
}
|
|
|
|
p = (CDFRAME *) cdfp;
|
|
while (length > 0) {
|
|
CDparseframe(self->ob_cdparser, p);
|
|
length -= sizeof(CDFRAME);
|
|
p++;
|
|
if (err_occurred())
|
|
return NULL;
|
|
}
|
|
|
|
INCREF(None);
|
|
return None;
|
|
}
|
|
|
|
static object *
|
|
CD_removecallback(self, args)
|
|
cdparserobject *self;
|
|
object *args;
|
|
{
|
|
int type;
|
|
|
|
CheckParser(self);
|
|
|
|
if (!getargs(args, "i", &type))
|
|
return NULL;
|
|
|
|
CDremovecallback(self->ob_cdparser, (CDDATATYPES) type);
|
|
|
|
XDECREF(self->ob_cdcallbacks[type].ob_cdcallback);
|
|
self->ob_cdcallbacks[type].ob_cdcallback = NULL;
|
|
|
|
XDECREF(self->ob_cdcallbacks[type].ob_cdcallbackarg);
|
|
self->ob_cdcallbacks[type].ob_cdcallbackarg = NULL;
|
|
|
|
INCREF(None);
|
|
return None;
|
|
}
|
|
|
|
static object *
|
|
CD_resetparser(self, args)
|
|
cdparserobject *self;
|
|
object *args;
|
|
{
|
|
CheckParser(self);
|
|
|
|
if (!getnoarg(args))
|
|
return NULL;
|
|
|
|
CDresetparser(self->ob_cdparser);
|
|
|
|
INCREF(None);
|
|
return None;
|
|
}
|
|
|
|
static object *
|
|
CD_setcallback(self, args)
|
|
cdparserobject *self;
|
|
object *args;
|
|
{
|
|
int type;
|
|
object *funcobject, *funcargobject;
|
|
|
|
CheckParser(self);
|
|
|
|
/* XXX - more work here */
|
|
if (!getargs(args, "(iOO)", &type, &funcobject, &funcargobject))
|
|
return NULL;
|
|
|
|
if (type < 0 || type >= NCALLBACKS) {
|
|
err_setstr(RuntimeError, "bad type");
|
|
return NULL;
|
|
}
|
|
|
|
CDsetcallback(self->ob_cdparser, (CDDATATYPES) type, CD_callback, (void *) self);
|
|
XDECREF(self->ob_cdcallbacks[type].ob_cdcallback);
|
|
INCREF(funcobject);
|
|
self->ob_cdcallbacks[type].ob_cdcallback = funcobject;
|
|
XDECREF(self->ob_cdcallbacks[type].ob_cdcallbackarg);
|
|
INCREF(funcargobject);
|
|
self->ob_cdcallbacks[type].ob_cdcallbackarg = funcargobject;
|
|
|
|
INCREF(None);
|
|
return None;
|
|
}
|
|
|
|
static struct methodlist cdparser_methods[] = {
|
|
{"deleteparser", CD_deleteparser},
|
|
{"parseframe", CD_parseframe},
|
|
{"removecallback", CD_removecallback},
|
|
{"resetparser", CD_resetparser},
|
|
{"setcallback", CD_setcallback},
|
|
{NULL, NULL} /* sentinel */
|
|
};
|
|
|
|
static void
|
|
cdparser_dealloc(self)
|
|
cdparserobject *self;
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < NCALLBACKS; i++) {
|
|
XDECREF(self->ob_cdcallbacks[i].ob_cdcallback);
|
|
self->ob_cdcallbacks[i].ob_cdcallback = NULL;
|
|
XDECREF(self->ob_cdcallbacks[i].ob_cdcallbackarg);
|
|
self->ob_cdcallbacks[i].ob_cdcallbackarg = NULL;
|
|
}
|
|
CDdeleteparser(self->ob_cdparser);
|
|
DEL(self);
|
|
}
|
|
|
|
static object *
|
|
cdparser_getattr(cdp, name)
|
|
cdparserobject *cdp;
|
|
char *name;
|
|
{
|
|
return findmethod(cdparser_methods, (object *)cdp, name);
|
|
}
|
|
|
|
typeobject CdParsertype = {
|
|
OB_HEAD_INIT(&Typetype)
|
|
0, /*ob_size*/
|
|
"cdparser", /*tp_name*/
|
|
sizeof(cdparserobject), /*tp_size*/
|
|
0, /*tp_itemsize*/
|
|
/* methods */
|
|
cdparser_dealloc, /*tp_dealloc*/
|
|
0, /*tp_print*/
|
|
cdparser_getattr, /*tp_getattr*/
|
|
0, /*tp_setattr*/
|
|
0, /*tp_compare*/
|
|
0, /*tp_repr*/
|
|
};
|
|
|
|
static object *
|
|
newcdparserobject(cdp)
|
|
CDPARSER *cdp;
|
|
{
|
|
cdparserobject *p;
|
|
int i;
|
|
|
|
p = NEWOBJ(cdparserobject, &CdParsertype);
|
|
if (p == NULL)
|
|
return NULL;
|
|
p->ob_cdparser = cdp;
|
|
for (i = 0; i < NCALLBACKS; i++) {
|
|
p->ob_cdcallbacks[i].ob_cdcallback = NULL;
|
|
p->ob_cdcallbacks[i].ob_cdcallbackarg = NULL;
|
|
}
|
|
return (object *) p;
|
|
}
|
|
|
|
static object *
|
|
CD_createparser(self, args)
|
|
object *self, *args;
|
|
{
|
|
CDPARSER *cdp;
|
|
|
|
if (!getnoarg(args))
|
|
return NULL;
|
|
cdp = CDcreateparser();
|
|
if (cdp == NULL) {
|
|
err_setstr(IOError, "createparser failed");
|
|
return NULL;
|
|
}
|
|
|
|
return newcdparserobject(cdp);
|
|
}
|
|
|
|
static object *
|
|
CD_sbtoa(self, args)
|
|
object *self;
|
|
object *args;
|
|
{
|
|
char *sb;
|
|
int length;
|
|
object *result;
|
|
|
|
if (!getargs(args, "s#", &sb, &length))
|
|
return NULL;
|
|
result = newsizedstringobject(NULL, length);
|
|
CDsbtoa(getstringvalue(result), (unchar *) sb, length);
|
|
return result;
|
|
}
|
|
|
|
static object *
|
|
CD_timetoa(self, args)
|
|
object *self;
|
|
object *args;
|
|
{
|
|
char *tc;
|
|
int length;
|
|
object *result;
|
|
|
|
if (!getargs(args, "s#", &tc, &length))
|
|
return NULL;
|
|
|
|
if (length != sizeof(struct cdtimecode)) {
|
|
err_setstr(RuntimeError, "bad length");
|
|
return NULL;
|
|
}
|
|
|
|
result = newsizedstringobject(NULL, 8);
|
|
CDtimetoa(getstringvalue(result), (struct cdtimecode *) tc);
|
|
return result;
|
|
}
|
|
|
|
static struct methodlist CD_methods[] = {
|
|
{"sbtoa", CD_sbtoa},
|
|
{"open", CD_open},
|
|
{"createparser",CD_createparser},
|
|
{"timetoa", CD_timetoa},
|
|
{NULL, NULL} /* Sentinel */
|
|
};
|
|
|
|
void
|
|
initcd()
|
|
{
|
|
(void) initmodule("cd", CD_methods);
|
|
}
|