| 1 | /* audio.c - play a sound */ |
| 2 | |
| 3 | #ifndef lint |
| 4 | static char *rcsid = "$Header: /f/osi/dsap/common/RCS/audio.c,v 7.3 91/02/22 09:18:33 mrose Interim $"; |
| 5 | #endif |
| 6 | |
| 7 | /* |
| 8 | * $Header: /f/osi/dsap/common/RCS/audio.c,v 7.3 91/02/22 09:18:33 mrose Interim $ |
| 9 | * |
| 10 | * |
| 11 | * $Log: audio.c,v $ |
| 12 | * Revision 7.3 91/02/22 09:18:33 mrose |
| 13 | * Interim 6.8 |
| 14 | * |
| 15 | * Revision 7.2 90/11/20 15:29:13 mrose |
| 16 | * cjr |
| 17 | * |
| 18 | * Revision 7.1 90/10/17 11:41:14 mrose |
| 19 | * sync |
| 20 | * |
| 21 | * Revision 7.0 90/08/08 08:35:36 mrose |
| 22 | * *** empty log message *** |
| 23 | * |
| 24 | */ |
| 25 | |
| 26 | /* |
| 27 | * NOTICE |
| 28 | * |
| 29 | * Acquisition, use, and distribution of this module and related |
| 30 | * materials are subject to the restrictions of a license agreement. |
| 31 | * Consult the Preface in the User's Manual for the full terms of |
| 32 | * this agreement. |
| 33 | * |
| 34 | */ |
| 35 | |
| 36 | |
| 37 | /* LINTLIBRARY */ |
| 38 | |
| 39 | #include <signal.h> |
| 40 | #include "quipu/util.h" |
| 41 | #include "quipu/attr.h" |
| 42 | #include "psap.h" |
| 43 | #include <errno.h> |
| 44 | #ifdef BSD42 |
| 45 | #include <sys/wait.h> |
| 46 | #endif |
| 47 | |
| 48 | #ifndef BINPATH |
| 49 | #define BINPATH "/usr/local/bin/" |
| 50 | #endif |
| 51 | |
| 52 | /* Assumes the 'play' routine from Mike (bauer@cns.ucalgary.ca) is |
| 53 | installed in BINPATH directory. |
| 54 | */ |
| 55 | |
| 56 | /* Use the {FILE} mechanism to pull in the sound files */ |
| 57 | |
| 58 | extern r_octprint(); |
| 59 | extern PE r_octenc(); |
| 60 | extern struct qbuf * r_octsdec(); |
| 61 | extern struct qbuf * r_octparse(); |
| 62 | extern struct qbuf * qb_cpy(); |
| 63 | extern qb_cmp(); |
| 64 | extern int file_attr_length; |
| 65 | |
| 66 | audio_print (ps,qb,format) |
| 67 | PS ps; |
| 68 | struct qbuf * qb; |
| 69 | int format; |
| 70 | { |
| 71 | int pd[2]; |
| 72 | char buffer [LINESIZE]; |
| 73 | char execvector [LINESIZE]; |
| 74 | struct qbuf *p; |
| 75 | |
| 76 | int pid; |
| 77 | int childpid; |
| 78 | #ifndef BSD42 |
| 79 | int status; |
| 80 | #else |
| 81 | union wait status; |
| 82 | #endif |
| 83 | |
| 84 | SFP pstat; |
| 85 | |
| 86 | |
| 87 | if (format != READOUT) { |
| 88 | for (p = qb -> qb_forw; p != qb; p = p -> qb_forw) |
| 89 | (void) ps_write (ps,(PElementData)p->qb_data,p->qb_len); |
| 90 | return; |
| 91 | } |
| 92 | |
| 93 | #ifndef sparc |
| 94 | ps_print (ps, "(No display process defined)"); |
| 95 | #else |
| 96 | if (pipe(pd) == -1) { |
| 97 | ps_print (ps,"ERROR: could not create pipe"); |
| 98 | return; |
| 99 | } |
| 100 | |
| 101 | pstat = signal (SIGPIPE, SIG_IGN); |
| 102 | |
| 103 | switch (childpid = fork()) { |
| 104 | |
| 105 | case -1: |
| 106 | (void) close (pd[1]); |
| 107 | (void) close (pd[0]); |
| 108 | (void) signal (SIGPIPE, pstat); |
| 109 | ps_print (ps,"ERROR: could not fork"); |
| 110 | return; |
| 111 | |
| 112 | case 0: |
| 113 | (void) signal (SIGPIPE, pstat); |
| 114 | |
| 115 | if (dup2(pd[0], 0) == -1) |
| 116 | _exit (-1); |
| 117 | (void) close (pd[0]); |
| 118 | (void) close (pd[1]); |
| 119 | |
| 120 | (void) sprintf (execvector,"%splay",BINPATH); |
| 121 | |
| 122 | (void) execl (execvector,execvector,NULLCP); |
| 123 | |
| 124 | while (read (0, buffer, sizeof buffer) > 0) |
| 125 | continue; |
| 126 | (void) printf ("ERROR: can't execute '%s'",execvector); |
| 127 | |
| 128 | (void) fflush (stdout); |
| 129 | /* safety catch */ |
| 130 | _exit (-1); |
| 131 | /* NOTREACHED */ |
| 132 | |
| 133 | default: |
| 134 | (void) close (pd[0]); |
| 135 | for (p = qb -> qb_forw; p != qb; p = p -> qb_forw) { |
| 136 | if (write (pd[1],p->qb_data,p->qb_len) != p->qb_len) { |
| 137 | (void) close (pd[1]); |
| 138 | (void) signal (SIGPIPE, pstat); |
| 139 | ps_print (ps,"ERROR: write error"); |
| 140 | return; |
| 141 | } |
| 142 | } |
| 143 | (void) close (pd[1]); |
| 144 | ps_printf (ps,"%splay invoked",BINPATH); |
| 145 | |
| 146 | while ((pid = wait (&status)) != NOTOK && childpid != pid) |
| 147 | continue; |
| 148 | |
| 149 | (void) signal (SIGPIPE, pstat); |
| 150 | |
| 151 | return; |
| 152 | } |
| 153 | #endif |
| 154 | } |
| 155 | |
| 156 | static struct qbuf *audio_parse (str) |
| 157 | char *str; |
| 158 | { |
| 159 | if (file_attr_length) |
| 160 | return str2qb (str, file_attr_length, 1); |
| 161 | else |
| 162 | return str2qb (str, strlen (str), 1); |
| 163 | } |
| 164 | |
| 165 | audio_syntax () |
| 166 | { |
| 167 | (void) add_attribute_syntax ("audio", |
| 168 | (IFP)r_octenc, (IFP) r_octsdec, |
| 169 | (IFP)audio_parse, audio_print, |
| 170 | (IFP)qb_cpy, qb_cmp, |
| 171 | qb_free, NULLCP, |
| 172 | NULLIFP, TRUE); |
| 173 | |
| 174 | } |