1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <stdlib.h> 30*0Sstevel@tonic-gate #include <stdio.h> 31*0Sstevel@tonic-gate #include <unistd.h> 32*0Sstevel@tonic-gate #include <errno.h> 33*0Sstevel@tonic-gate #include <malloc.h> 34*0Sstevel@tonic-gate #include <string.h> 35*0Sstevel@tonic-gate #include <fcntl.h> 36*0Sstevel@tonic-gate #include <sys/stat.h> 37*0Sstevel@tonic-gate #include <sys/types.h> 38*0Sstevel@tonic-gate #include <sys/mman.h> 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate #include <AudioFile.h> 41*0Sstevel@tonic-gate #include <AudioLib.h> 42*0Sstevel@tonic-gate #include <AudioDebug.h> 43*0Sstevel@tonic-gate #include <libaudio.h> 44*0Sstevel@tonic-gate #include <audio_hdr.h> 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate // XX64 This should go away when <sys/mman.h> gets fixed. 47*0Sstevel@tonic-gate extern "C" int madvise(caddr_t, size_t, int); 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate // class AudioFile methods 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate // Initialize temporary file params 53*0Sstevel@tonic-gate #define TMPDIR "/tmp" 54*0Sstevel@tonic-gate #define TMPFILE "/audiotoolXXXXXX" 55*0Sstevel@tonic-gate static char *tmpdir = NULL; 56*0Sstevel@tonic-gate static const char *tmpname = "(temporary file)"; 57*0Sstevel@tonic-gate static const FileAccess tmpmode = ReadWrite; 58*0Sstevel@tonic-gate static const VMAccess defaccess = SequentialAccess; 59*0Sstevel@tonic-gate 60*0Sstevel@tonic-gate // Initialize default access mode, used when a filename is supplied 61*0Sstevel@tonic-gate const FileAccess AudioFile::defmode = ReadOnly; 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate // Default audio file path prefix environment variable 64*0Sstevel@tonic-gate const char *AudioFile::AUDIO_PATH = "AUDIOPATH"; 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate // Constructor with no arguments opens a read/write temporary file 68*0Sstevel@tonic-gate AudioFile:: 69*0Sstevel@tonic-gate AudioFile(): 70*0Sstevel@tonic-gate AudioUnixfile(tmpname, tmpmode), 71*0Sstevel@tonic-gate hdrsize(0), seekpos(0), origlen(0.), mapaddr(0), maplen(0), 72*0Sstevel@tonic-gate vmaccess(defaccess) 73*0Sstevel@tonic-gate { 74*0Sstevel@tonic-gate } 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate // Constructor with pathname and optional mode arg 77*0Sstevel@tonic-gate AudioFile:: 78*0Sstevel@tonic-gate AudioFile( 79*0Sstevel@tonic-gate const char *path, // filename 80*0Sstevel@tonic-gate const FileAccess acc): // access mode 81*0Sstevel@tonic-gate AudioUnixfile(path, acc), 82*0Sstevel@tonic-gate hdrsize(0), seekpos(0), origlen(0.), mapaddr(0), maplen(0), 83*0Sstevel@tonic-gate vmaccess(defaccess) 84*0Sstevel@tonic-gate { 85*0Sstevel@tonic-gate } 86*0Sstevel@tonic-gate 87*0Sstevel@tonic-gate // Destructor must call the local Close() routine 88*0Sstevel@tonic-gate AudioFile:: 89*0Sstevel@tonic-gate ~AudioFile() 90*0Sstevel@tonic-gate { 91*0Sstevel@tonic-gate // If the file was open, close it 92*0Sstevel@tonic-gate if (opened()) 93*0Sstevel@tonic-gate (void) Close(); 94*0Sstevel@tonic-gate } 95*0Sstevel@tonic-gate 96*0Sstevel@tonic-gate // Set a default temporary file directory 97*0Sstevel@tonic-gate AudioError AudioFile:: 98*0Sstevel@tonic-gate SetTempPath( 99*0Sstevel@tonic-gate const char *path) 100*0Sstevel@tonic-gate { 101*0Sstevel@tonic-gate struct stat st; 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate // Verify intended path 104*0Sstevel@tonic-gate if ((stat(path, &st) < 0) || 105*0Sstevel@tonic-gate !S_ISDIR(st.st_mode) || 106*0Sstevel@tonic-gate (access(path, W_OK) < 0)) { 107*0Sstevel@tonic-gate errno = ENOTDIR; 108*0Sstevel@tonic-gate return (AUDIO_UNIXERROR); 109*0Sstevel@tonic-gate } 110*0Sstevel@tonic-gate 111*0Sstevel@tonic-gate if (tmpdir != NULL) 112*0Sstevel@tonic-gate (void) free(tmpdir); 113*0Sstevel@tonic-gate tmpdir = (char *)malloc(strlen(path) + 1); 114*0Sstevel@tonic-gate (void) strcpy(tmpdir, path); 115*0Sstevel@tonic-gate return (AUDIO_SUCCESS); 116*0Sstevel@tonic-gate } 117*0Sstevel@tonic-gate 118*0Sstevel@tonic-gate 119*0Sstevel@tonic-gate // Create a named file according to the current mode setting 120*0Sstevel@tonic-gate AudioError AudioFile:: 121*0Sstevel@tonic-gate createfile( 122*0Sstevel@tonic-gate const char *path) // pathname or 0 123*0Sstevel@tonic-gate { 124*0Sstevel@tonic-gate char *tmpf; 125*0Sstevel@tonic-gate char *tmpstr; 126*0Sstevel@tonic-gate int openmode; 127*0Sstevel@tonic-gate int desc; 128*0Sstevel@tonic-gate AudioError err; 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate // Convert the open mode to an int argument for open() 131*0Sstevel@tonic-gate openmode = GetAccess(); 132*0Sstevel@tonic-gate 133*0Sstevel@tonic-gate // Was the header properly set? 134*0Sstevel@tonic-gate if (!hdrset()) 135*0Sstevel@tonic-gate return (RaiseError(AUDIO_ERR_BADHDR)); 136*0Sstevel@tonic-gate 137*0Sstevel@tonic-gate // Can't create if already opened or if mode or name not set 138*0Sstevel@tonic-gate if ((openmode == -1) || opened() || (strlen(path) == 0)) 139*0Sstevel@tonic-gate return (RaiseError(AUDIO_ERR_NOEFFECT)); 140*0Sstevel@tonic-gate 141*0Sstevel@tonic-gate // If temporary file, create and unlink it. 142*0Sstevel@tonic-gate if (strcmp(path, tmpname) == 0) { 143*0Sstevel@tonic-gate // Construct the temporary file path 144*0Sstevel@tonic-gate tmpstr = (char *)malloc(1 + strlen(TMPFILE) + 145*0Sstevel@tonic-gate strlen((tmpdir == NULL) ? TMPDIR : tmpdir)); 146*0Sstevel@tonic-gate (void) sprintf(tmpstr, "%s%s", 147*0Sstevel@tonic-gate (tmpdir == NULL) ? TMPDIR : tmpdir, TMPFILE); 148*0Sstevel@tonic-gate tmpf = mktemp(tmpstr); 149*0Sstevel@tonic-gate 150*0Sstevel@tonic-gate // Open the temp file and unlink it 151*0Sstevel@tonic-gate err = createfile(tmpf); 152*0Sstevel@tonic-gate if ((err == AUDIO_SUCCESS) && (unlink(tmpf) < 0)) { 153*0Sstevel@tonic-gate (void) Close(); 154*0Sstevel@tonic-gate err = RaiseError(AUDIO_UNIXERROR, Warning); 155*0Sstevel@tonic-gate } 156*0Sstevel@tonic-gate (void) free(tmpstr); 157*0Sstevel@tonic-gate return (err); 158*0Sstevel@tonic-gate } 159*0Sstevel@tonic-gate 160*0Sstevel@tonic-gate // Create the file 161*0Sstevel@tonic-gate desc = open(path, openmode | O_CREAT | O_TRUNC, 0666); 162*0Sstevel@tonic-gate if ((desc < 0) && (errno == EOVERFLOW)) { 163*0Sstevel@tonic-gate return (RaiseError(AUDIO_UNIXERROR, Fatal, 164*0Sstevel@tonic-gate (char *)"Large File")); 165*0Sstevel@tonic-gate } else if (desc < 0) { 166*0Sstevel@tonic-gate return (RaiseError(AUDIO_UNIXERROR)); 167*0Sstevel@tonic-gate } 168*0Sstevel@tonic-gate 169*0Sstevel@tonic-gate // Set the file descriptor (this marks the file open) 170*0Sstevel@tonic-gate setfd(desc); 171*0Sstevel@tonic-gate 172*0Sstevel@tonic-gate // Write the file header with current (usually unknown) size 173*0Sstevel@tonic-gate err = encode_filehdr(); 174*0Sstevel@tonic-gate if (err != AUDIO_SUCCESS) { 175*0Sstevel@tonic-gate setfd(-1); 176*0Sstevel@tonic-gate (void) close(desc); // If error, remove file 177*0Sstevel@tonic-gate (void) unlink(path); 178*0Sstevel@tonic-gate return (err); 179*0Sstevel@tonic-gate } 180*0Sstevel@tonic-gate 181*0Sstevel@tonic-gate // Save the length that got written, then set it to zero 182*0Sstevel@tonic-gate origlen = GetLength(); 183*0Sstevel@tonic-gate setlength(0.); 184*0Sstevel@tonic-gate 185*0Sstevel@tonic-gate // Set the size of the file header 186*0Sstevel@tonic-gate hdrsize = lseek(desc, (off_t)0, SEEK_CUR); 187*0Sstevel@tonic-gate if (hdrsize < 0) { 188*0Sstevel@tonic-gate setfd(-1); 189*0Sstevel@tonic-gate (void) close(desc); // If error, remove file 190*0Sstevel@tonic-gate (void) unlink(path); 191*0Sstevel@tonic-gate return (err); 192*0Sstevel@tonic-gate } 193*0Sstevel@tonic-gate seekpos = 0; 194*0Sstevel@tonic-gate 195*0Sstevel@tonic-gate return (AUDIO_SUCCESS); 196*0Sstevel@tonic-gate } 197*0Sstevel@tonic-gate 198*0Sstevel@tonic-gate // Create a file whose name is already set, according to the mode setting 199*0Sstevel@tonic-gate AudioError AudioFile:: 200*0Sstevel@tonic-gate Create() 201*0Sstevel@tonic-gate { 202*0Sstevel@tonic-gate return (createfile(GetName())); 203*0Sstevel@tonic-gate } 204*0Sstevel@tonic-gate 205*0Sstevel@tonic-gate // Open a file whose name is set 206*0Sstevel@tonic-gate AudioError AudioFile:: 207*0Sstevel@tonic-gate Open() 208*0Sstevel@tonic-gate { 209*0Sstevel@tonic-gate return (OpenPath(NULL)); 210*0Sstevel@tonic-gate } 211*0Sstevel@tonic-gate 212*0Sstevel@tonic-gate // Open a file, using the specified path prefixes 213*0Sstevel@tonic-gate AudioError AudioFile:: 214*0Sstevel@tonic-gate OpenPath( 215*0Sstevel@tonic-gate const char *path) 216*0Sstevel@tonic-gate { 217*0Sstevel@tonic-gate char *filename; 218*0Sstevel@tonic-gate int flen; 219*0Sstevel@tonic-gate char *prefix; 220*0Sstevel@tonic-gate char *str; 221*0Sstevel@tonic-gate char *wrk; 222*0Sstevel@tonic-gate char *pathname; 223*0Sstevel@tonic-gate int openmode; 224*0Sstevel@tonic-gate AudioError err; 225*0Sstevel@tonic-gate 226*0Sstevel@tonic-gate // Convert the open mode to an int argument for open() 227*0Sstevel@tonic-gate openmode = GetAccess(); 228*0Sstevel@tonic-gate filename = GetName(); 229*0Sstevel@tonic-gate flen = strlen(filename); 230*0Sstevel@tonic-gate 231*0Sstevel@tonic-gate // Can't open if already opened or if mode or name not set 232*0Sstevel@tonic-gate if ((openmode == -1) || opened() || (strlen(filename) == 0)) 233*0Sstevel@tonic-gate return (RaiseError(AUDIO_ERR_NOEFFECT)); 234*0Sstevel@tonic-gate 235*0Sstevel@tonic-gate // Search path: 236*0Sstevel@tonic-gate // 1) try name: if not found and not readonly: 237*0Sstevel@tonic-gate // if Append mode, try creating it 238*0Sstevel@tonic-gate // 2) if name is a relative pathname, and 'path' is not NULL: 239*0Sstevel@tonic-gate // try every path prefix in 'path' 240*0Sstevel@tonic-gate 241*0Sstevel@tonic-gate err = tryopen(filename, openmode); 242*0Sstevel@tonic-gate if (!err) 243*0Sstevel@tonic-gate return (AUDIO_SUCCESS); 244*0Sstevel@tonic-gate if (GetAccess().Writeable() || (filename[0] == '/')) { 245*0Sstevel@tonic-gate // If file is non-existent and Append mode, try creating it. 246*0Sstevel@tonic-gate if ((err == AUDIO_UNIXERROR) && (err.sys == ENOENT) && 247*0Sstevel@tonic-gate GetAccess().Append() && hdrset()) { 248*0Sstevel@tonic-gate return (Create()); 249*0Sstevel@tonic-gate } 250*0Sstevel@tonic-gate return (RaiseError(err)); 251*0Sstevel@tonic-gate } 252*0Sstevel@tonic-gate 253*0Sstevel@tonic-gate // Try path as an environment variable name, else assume it is a path 254*0Sstevel@tonic-gate str = (path == NULL) ? NULL : getenv(path); 255*0Sstevel@tonic-gate if (str == NULL) 256*0Sstevel@tonic-gate str = (char *)path; 257*0Sstevel@tonic-gate 258*0Sstevel@tonic-gate if (str != NULL) { 259*0Sstevel@tonic-gate // Make a copy of the path, to parse it 260*0Sstevel@tonic-gate wrk = new char[strlen(str) + 1]; 261*0Sstevel@tonic-gate (void) strcpy(wrk, str); 262*0Sstevel@tonic-gate str = wrk; 263*0Sstevel@tonic-gate 264*0Sstevel@tonic-gate // Try each component as a path prefix 265*0Sstevel@tonic-gate for (prefix = str; 266*0Sstevel@tonic-gate (prefix != NULL) && (prefix[0] != '\0'); 267*0Sstevel@tonic-gate prefix = str) { 268*0Sstevel@tonic-gate str = strchr(str, ':'); 269*0Sstevel@tonic-gate if (str != NULL) 270*0Sstevel@tonic-gate *str++ = '\0'; 271*0Sstevel@tonic-gate pathname = new char[strlen(prefix) + flen + 2]; 272*0Sstevel@tonic-gate (void) sprintf(pathname, "%s/%s", prefix, filename); 273*0Sstevel@tonic-gate err = tryopen(pathname, openmode); 274*0Sstevel@tonic-gate delete pathname; 275*0Sstevel@tonic-gate switch (err) { 276*0Sstevel@tonic-gate case AUDIO_SUCCESS: // found the file 277*0Sstevel@tonic-gate delete wrk; 278*0Sstevel@tonic-gate return (RaiseError(err)); 279*0Sstevel@tonic-gate // XXX - if file found but not audio, stop looking?? 280*0Sstevel@tonic-gate } 281*0Sstevel@tonic-gate } 282*0Sstevel@tonic-gate delete wrk; 283*0Sstevel@tonic-gate } 284*0Sstevel@tonic-gate // Can't find file. Return the original error condition. 285*0Sstevel@tonic-gate return (RaiseError(tryopen(filename, openmode))); 286*0Sstevel@tonic-gate } 287*0Sstevel@tonic-gate 288*0Sstevel@tonic-gate // Attempt to open the given audio file 289*0Sstevel@tonic-gate AudioError AudioFile:: 290*0Sstevel@tonic-gate tryopen( 291*0Sstevel@tonic-gate const char *pathname, 292*0Sstevel@tonic-gate int openmode) 293*0Sstevel@tonic-gate { 294*0Sstevel@tonic-gate struct stat st; 295*0Sstevel@tonic-gate int desc; 296*0Sstevel@tonic-gate AudioError err; 297*0Sstevel@tonic-gate 298*0Sstevel@tonic-gate // If the name is changing, set the new one 299*0Sstevel@tonic-gate if (pathname != GetName()) 300*0Sstevel@tonic-gate SetName(pathname); 301*0Sstevel@tonic-gate 302*0Sstevel@tonic-gate // Does the file exist? 303*0Sstevel@tonic-gate if (stat(pathname, &st) < 0) 304*0Sstevel@tonic-gate return (AUDIO_UNIXERROR); 305*0Sstevel@tonic-gate 306*0Sstevel@tonic-gate // If not a regular file, stop right there 307*0Sstevel@tonic-gate if (!S_ISREG(st.st_mode)) 308*0Sstevel@tonic-gate return (AUDIO_ERR_BADFILEHDR); 309*0Sstevel@tonic-gate 310*0Sstevel@tonic-gate // Open the file and check that it's an audio file 311*0Sstevel@tonic-gate desc = open(GetName(), openmode); 312*0Sstevel@tonic-gate if ((desc < 0) && (errno == EOVERFLOW)) { 313*0Sstevel@tonic-gate return (RaiseError(AUDIO_UNIXERROR, Fatal, 314*0Sstevel@tonic-gate (char *)"Large File")); 315*0Sstevel@tonic-gate } else if (desc < 0) { 316*0Sstevel@tonic-gate return (AUDIO_UNIXERROR); 317*0Sstevel@tonic-gate } 318*0Sstevel@tonic-gate 319*0Sstevel@tonic-gate // Set the file descriptor (this marks the file open) 320*0Sstevel@tonic-gate setfd(desc); 321*0Sstevel@tonic-gate 322*0Sstevel@tonic-gate err = decode_filehdr(); 323*0Sstevel@tonic-gate if (err != AUDIO_SUCCESS) { 324*0Sstevel@tonic-gate (void) close(desc); 325*0Sstevel@tonic-gate setfd(-1); 326*0Sstevel@tonic-gate return (err); 327*0Sstevel@tonic-gate } 328*0Sstevel@tonic-gate 329*0Sstevel@tonic-gate // Save the length of the data and the size of the file header 330*0Sstevel@tonic-gate origlen = GetLength(); 331*0Sstevel@tonic-gate hdrsize = (off_t)lseek(desc, (off_t)0, SEEK_CUR); 332*0Sstevel@tonic-gate if (hdrsize < 0) { 333*0Sstevel@tonic-gate (void) close(desc); 334*0Sstevel@tonic-gate setfd(-1); 335*0Sstevel@tonic-gate return (err); 336*0Sstevel@tonic-gate } 337*0Sstevel@tonic-gate seekpos = 0; 338*0Sstevel@tonic-gate 339*0Sstevel@tonic-gate // If this is ReadOnly file, mmap() it. Don't worry if mmap() fails. 340*0Sstevel@tonic-gate if (!GetAccess().Writeable()) { 341*0Sstevel@tonic-gate maplen = st.st_size; 342*0Sstevel@tonic-gate 343*0Sstevel@tonic-gate /* 344*0Sstevel@tonic-gate * Can't mmap LITTLE_ENDIAN as they are converted in 345*0Sstevel@tonic-gate * place. 346*0Sstevel@tonic-gate */ 347*0Sstevel@tonic-gate if (localByteOrder() == BIG_ENDIAN) { 348*0Sstevel@tonic-gate if ((mapaddr = (caddr_t)mmap(0, (int)maplen, PROT_READ, 349*0Sstevel@tonic-gate MAP_SHARED, desc, 0)) != (caddr_t)-1) { 350*0Sstevel@tonic-gate // set default access method 351*0Sstevel@tonic-gate (void) madvise(mapaddr, (unsigned int)maplen, 352*0Sstevel@tonic-gate (int)GetAccessType()); 353*0Sstevel@tonic-gate } else { 354*0Sstevel@tonic-gate (void) RaiseError(AUDIO_UNIXERROR, Warning, 355*0Sstevel@tonic-gate (char *)"Could not mmap() file"); 356*0Sstevel@tonic-gate mapaddr = 0; 357*0Sstevel@tonic-gate maplen = 0; 358*0Sstevel@tonic-gate } 359*0Sstevel@tonic-gate } else { 360*0Sstevel@tonic-gate mapaddr = 0; 361*0Sstevel@tonic-gate maplen = 0; 362*0Sstevel@tonic-gate } 363*0Sstevel@tonic-gate } 364*0Sstevel@tonic-gate return (AUDIO_SUCCESS); 365*0Sstevel@tonic-gate } 366*0Sstevel@tonic-gate 367*0Sstevel@tonic-gate // set VM access hint for mmapped files 368*0Sstevel@tonic-gate AudioError AudioFile:: 369*0Sstevel@tonic-gate SetAccessType(VMAccess vmacc) 370*0Sstevel@tonic-gate { 371*0Sstevel@tonic-gate if (!opened()) { 372*0Sstevel@tonic-gate return (AUDIO_ERR_NOEFFECT); 373*0Sstevel@tonic-gate } 374*0Sstevel@tonic-gate 375*0Sstevel@tonic-gate if (mapaddr == 0) { 376*0Sstevel@tonic-gate return (AUDIO_ERR_NOEFFECT); 377*0Sstevel@tonic-gate } 378*0Sstevel@tonic-gate 379*0Sstevel@tonic-gate (void) madvise(mapaddr, (unsigned int)maplen, (int)vmacc); 380*0Sstevel@tonic-gate vmaccess = vmacc; 381*0Sstevel@tonic-gate 382*0Sstevel@tonic-gate return (AUDIO_SUCCESS); 383*0Sstevel@tonic-gate } 384*0Sstevel@tonic-gate 385*0Sstevel@tonic-gate // Close the file 386*0Sstevel@tonic-gate AudioError AudioFile:: 387*0Sstevel@tonic-gate Close() 388*0Sstevel@tonic-gate { 389*0Sstevel@tonic-gate AudioError err; 390*0Sstevel@tonic-gate 391*0Sstevel@tonic-gate if (!opened()) 392*0Sstevel@tonic-gate return (RaiseError(AUDIO_ERR_NOEFFECT, Warning)); 393*0Sstevel@tonic-gate 394*0Sstevel@tonic-gate // Rewind the file and rewrite the header with the correct length 395*0Sstevel@tonic-gate if (GetAccess().Writeable() && (origlen != GetLength())) { 396*0Sstevel@tonic-gate 397*0Sstevel@tonic-gate // sanity check 398*0Sstevel@tonic-gate if (GetHeader().Time_to_Bytes(GetLength()) != 399*0Sstevel@tonic-gate (lseek(getfd(), (off_t)0, SEEK_END) - hdrsize)) { 400*0Sstevel@tonic-gate PrintMsg(_MGET_( 401*0Sstevel@tonic-gate "AudioFile:Close()...inconsistent length\n"), 402*0Sstevel@tonic-gate Fatal); 403*0Sstevel@tonic-gate } 404*0Sstevel@tonic-gate 405*0Sstevel@tonic-gate // XXX - should be rewritten in C++ 406*0Sstevel@tonic-gate err = (AudioError) audio_rewrite_filesize(getfd(), FILE_AU, 407*0Sstevel@tonic-gate (uint_t)GetHeader().Time_to_Bytes(GetLength()), 0, 0); 408*0Sstevel@tonic-gate } 409*0Sstevel@tonic-gate 410*0Sstevel@tonic-gate // Call the generic file close routine 411*0Sstevel@tonic-gate err = AudioUnixfile::Close(); 412*0Sstevel@tonic-gate 413*0Sstevel@tonic-gate if (mapaddr) { 414*0Sstevel@tonic-gate munmap(mapaddr, (int)maplen); 415*0Sstevel@tonic-gate mapaddr = 0; 416*0Sstevel@tonic-gate maplen = 0; 417*0Sstevel@tonic-gate } 418*0Sstevel@tonic-gate 419*0Sstevel@tonic-gate // Init important values, in case the file is reopened 420*0Sstevel@tonic-gate hdrsize = 0; 421*0Sstevel@tonic-gate seekpos = 0; 422*0Sstevel@tonic-gate return (RaiseError(err)); 423*0Sstevel@tonic-gate } 424*0Sstevel@tonic-gate 425*0Sstevel@tonic-gate // Read data from underlying file into specified buffer. 426*0Sstevel@tonic-gate // No data format translation takes place. 427*0Sstevel@tonic-gate // The object's read position pointer is unaffected. 428*0Sstevel@tonic-gate AudioError AudioFile:: 429*0Sstevel@tonic-gate ReadData( 430*0Sstevel@tonic-gate void* buf, // destination buffer address 431*0Sstevel@tonic-gate size_t& len, // buffer length (updated) 432*0Sstevel@tonic-gate Double& pos) // start position (updated) 433*0Sstevel@tonic-gate { 434*0Sstevel@tonic-gate off_t offset; 435*0Sstevel@tonic-gate size_t cnt; 436*0Sstevel@tonic-gate caddr_t cp; 437*0Sstevel@tonic-gate AudioError err; 438*0Sstevel@tonic-gate 439*0Sstevel@tonic-gate // If the file is not mapped, call parent ReadData() and return 440*0Sstevel@tonic-gate if (mapaddr == 0) { 441*0Sstevel@tonic-gate // Call the real routine 442*0Sstevel@tonic-gate err = AudioUnixfile::ReadData(buf, len, pos); 443*0Sstevel@tonic-gate // Update the cached seek pointer 444*0Sstevel@tonic-gate seekpos += len; 445*0Sstevel@tonic-gate return (err); 446*0Sstevel@tonic-gate } 447*0Sstevel@tonic-gate 448*0Sstevel@tonic-gate // If the file is mmapped, do a memcpy() from the mapaddr 449*0Sstevel@tonic-gate 450*0Sstevel@tonic-gate // Save buffer size and zero transfer count 451*0Sstevel@tonic-gate cnt = (size_t)len; 452*0Sstevel@tonic-gate len = 0; 453*0Sstevel@tonic-gate 454*0Sstevel@tonic-gate // Cannot read if file is not open 455*0Sstevel@tonic-gate if (!opened() || !GetAccess().Readable()) 456*0Sstevel@tonic-gate return (RaiseError(AUDIO_ERR_NOEFFECT)); 457*0Sstevel@tonic-gate 458*0Sstevel@tonic-gate // Position must be valid 459*0Sstevel@tonic-gate if (Undefined(pos) || (pos < 0.) || ((int)cnt < 0)) 460*0Sstevel@tonic-gate return (RaiseError(AUDIO_ERR_BADARG)); 461*0Sstevel@tonic-gate 462*0Sstevel@tonic-gate // Make sure we don't read off the end of file 463*0Sstevel@tonic-gate offset = GetHeader().Time_to_Bytes(pos); 464*0Sstevel@tonic-gate 465*0Sstevel@tonic-gate if ((offset + hdrsize) >= maplen) { 466*0Sstevel@tonic-gate // trying to read past EOF 467*0Sstevel@tonic-gate err = AUDIO_EOF; 468*0Sstevel@tonic-gate err.sys = AUDIO_COPY_INPUT_EOF; 469*0Sstevel@tonic-gate return (err); 470*0Sstevel@tonic-gate } else if ((offset + hdrsize + cnt) > maplen) { 471*0Sstevel@tonic-gate // re-adjust cnt so it reads up to the end of file 472*0Sstevel@tonic-gate cnt = (size_t)(maplen - (offset + hdrsize)); 473*0Sstevel@tonic-gate } 474*0Sstevel@tonic-gate 475*0Sstevel@tonic-gate // Zero-length reads are finished 476*0Sstevel@tonic-gate if (GetHeader().Bytes_to_Bytes(cnt) == 0) { 477*0Sstevel@tonic-gate err = AUDIO_SUCCESS; 478*0Sstevel@tonic-gate err.sys = AUDIO_COPY_ZERO_LIMIT; 479*0Sstevel@tonic-gate return (err); 480*0Sstevel@tonic-gate } else { 481*0Sstevel@tonic-gate cp = mapaddr + offset + hdrsize; 482*0Sstevel@tonic-gate memcpy((void*)buf, (void*)cp, cnt); 483*0Sstevel@tonic-gate } 484*0Sstevel@tonic-gate 485*0Sstevel@tonic-gate // Return the updated byte count and position 486*0Sstevel@tonic-gate len = cnt; 487*0Sstevel@tonic-gate pos = GetHeader().Bytes_to_Time(offset + len); 488*0Sstevel@tonic-gate 489*0Sstevel@tonic-gate // Check to see if the endian is right. Note that special care 490*0Sstevel@tonic-gate // doesn't need to be taken because of the mmap, since the data 491*0Sstevel@tonic-gate // is copied into a separate buffer anyway. 492*0Sstevel@tonic-gate coerceEndian((unsigned char *)buf, len, localByteOrder()); 493*0Sstevel@tonic-gate 494*0Sstevel@tonic-gate return (AUDIO_SUCCESS); 495*0Sstevel@tonic-gate } 496*0Sstevel@tonic-gate 497*0Sstevel@tonic-gate // Write data to underlying file from specified buffer. 498*0Sstevel@tonic-gate // No data format translation takes place. 499*0Sstevel@tonic-gate // The object's write position pointer is unaffected. 500*0Sstevel@tonic-gate AudioError AudioFile:: 501*0Sstevel@tonic-gate WriteData( 502*0Sstevel@tonic-gate void* buf, // source buffer address 503*0Sstevel@tonic-gate size_t& len, // buffer length (updated) 504*0Sstevel@tonic-gate Double& pos) // start position (updated) 505*0Sstevel@tonic-gate { 506*0Sstevel@tonic-gate AudioError err; 507*0Sstevel@tonic-gate 508*0Sstevel@tonic-gate // Call the real routine 509*0Sstevel@tonic-gate err = AudioUnixfile::WriteData(buf, len, pos); 510*0Sstevel@tonic-gate 511*0Sstevel@tonic-gate // Update the cached seek pointer 512*0Sstevel@tonic-gate seekpos += len; 513*0Sstevel@tonic-gate return (err); 514*0Sstevel@tonic-gate } 515*0Sstevel@tonic-gate 516*0Sstevel@tonic-gate // Set the Unix file pointer to match a given file position. 517*0Sstevel@tonic-gate AudioError AudioFile:: 518*0Sstevel@tonic-gate seekread( 519*0Sstevel@tonic-gate Double pos, // position to seek to 520*0Sstevel@tonic-gate off_t& offset) // returned byte offset 521*0Sstevel@tonic-gate { 522*0Sstevel@tonic-gate offset = GetHeader().Time_to_Bytes(pos); 523*0Sstevel@tonic-gate if (offset != seekpos) { 524*0Sstevel@tonic-gate if (lseek(getfd(), (off_t)(hdrsize + offset), SEEK_SET) < 0) 525*0Sstevel@tonic-gate return (RaiseError(AUDIO_UNIXERROR, Warning)); 526*0Sstevel@tonic-gate seekpos = offset; 527*0Sstevel@tonic-gate } 528*0Sstevel@tonic-gate return (AUDIO_SUCCESS); 529*0Sstevel@tonic-gate } 530*0Sstevel@tonic-gate 531*0Sstevel@tonic-gate // Set the Unix file pointer to match a given file position. 532*0Sstevel@tonic-gate // If seek beyond end-of-file, NULL out intervening data. 533*0Sstevel@tonic-gate AudioError AudioFile:: 534*0Sstevel@tonic-gate seekwrite( 535*0Sstevel@tonic-gate Double pos, // position to seek to 536*0Sstevel@tonic-gate off_t& offset) // returned byte offset 537*0Sstevel@tonic-gate { 538*0Sstevel@tonic-gate // If append-only, can't seek backwards into file 539*0Sstevel@tonic-gate if (GetAccess().Append() && (pos < GetLength())) 540*0Sstevel@tonic-gate return (RaiseError(AUDIO_ERR_NOEFFECT, Warning)); 541*0Sstevel@tonic-gate 542*0Sstevel@tonic-gate // If seek beyond eof, fill data 543*0Sstevel@tonic-gate if (pos > GetLength()) { 544*0Sstevel@tonic-gate seekwrite(GetLength(), offset); // seek to eof 545*0Sstevel@tonic-gate 546*0Sstevel@tonic-gate // XXX - not implemented yet 547*0Sstevel@tonic-gate 548*0Sstevel@tonic-gate return (AUDIO_SUCCESS); 549*0Sstevel@tonic-gate } 550*0Sstevel@tonic-gate 551*0Sstevel@tonic-gate offset = GetHeader().Time_to_Bytes(pos); 552*0Sstevel@tonic-gate if (offset != seekpos) { 553*0Sstevel@tonic-gate if (lseek(getfd(), (off_t)(hdrsize + offset), SEEK_SET) < 0) 554*0Sstevel@tonic-gate return (RaiseError(AUDIO_UNIXERROR, Warning)); 555*0Sstevel@tonic-gate seekpos = offset; 556*0Sstevel@tonic-gate } 557*0Sstevel@tonic-gate return (AUDIO_SUCCESS); 558*0Sstevel@tonic-gate } 559*0Sstevel@tonic-gate 560*0Sstevel@tonic-gate // Copy routine that handles mapped files 561*0Sstevel@tonic-gate AudioError AudioFile:: 562*0Sstevel@tonic-gate AsyncCopy( 563*0Sstevel@tonic-gate Audio* to, // audio object to copy to 564*0Sstevel@tonic-gate Double& frompos, 565*0Sstevel@tonic-gate Double& topos, 566*0Sstevel@tonic-gate Double& limit) 567*0Sstevel@tonic-gate { 568*0Sstevel@tonic-gate caddr_t bptr; 569*0Sstevel@tonic-gate size_t offset; 570*0Sstevel@tonic-gate size_t cnt; 571*0Sstevel@tonic-gate size_t svlim; 572*0Sstevel@tonic-gate Double svfrom; 573*0Sstevel@tonic-gate Double svto; 574*0Sstevel@tonic-gate AudioHdr tohdr; 575*0Sstevel@tonic-gate AudioError err; 576*0Sstevel@tonic-gate 577*0Sstevel@tonic-gate // If this is NOT mmapped, or the destination is an AudioBuffer, 578*0Sstevel@tonic-gate // use the default routine 579*0Sstevel@tonic-gate if ((mapaddr == 0) || to->isBuffer()) { 580*0Sstevel@tonic-gate return (Audio::AsyncCopy(to, frompos, topos, limit)); 581*0Sstevel@tonic-gate } 582*0Sstevel@tonic-gate 583*0Sstevel@tonic-gate tohdr = to->GetHeader(); 584*0Sstevel@tonic-gate if (err = tohdr.Validate()) 585*0Sstevel@tonic-gate return (err); 586*0Sstevel@tonic-gate if (limit < 0.) 587*0Sstevel@tonic-gate return (RaiseError(AUDIO_ERR_BADARG)); 588*0Sstevel@tonic-gate svlim = (size_t)tohdr.Time_to_Bytes(limit); 589*0Sstevel@tonic-gate 590*0Sstevel@tonic-gate // Get maximum possible copy length 591*0Sstevel@tonic-gate svfrom = GetLength(); 592*0Sstevel@tonic-gate if ((frompos >= svfrom) || ((cnt = (size_t) 593*0Sstevel@tonic-gate GetHeader().Time_to_Bytes(svfrom - frompos)) == 0)) { 594*0Sstevel@tonic-gate limit = 0.; 595*0Sstevel@tonic-gate err = AUDIO_EOF; 596*0Sstevel@tonic-gate err.sys = AUDIO_COPY_INPUT_EOF; 597*0Sstevel@tonic-gate return (err); 598*0Sstevel@tonic-gate } 599*0Sstevel@tonic-gate if (!Undefined(limit) && (svlim < cnt)) 600*0Sstevel@tonic-gate cnt = svlim; 601*0Sstevel@tonic-gate 602*0Sstevel@tonic-gate limit = 0.; 603*0Sstevel@tonic-gate 604*0Sstevel@tonic-gate offset = (size_t)GetHeader().Time_to_Bytes(frompos); 605*0Sstevel@tonic-gate if ((offset + hdrsize) >= maplen) { 606*0Sstevel@tonic-gate // trying to read past EOF 607*0Sstevel@tonic-gate err = AUDIO_EOF; 608*0Sstevel@tonic-gate err.sys = AUDIO_COPY_INPUT_EOF; 609*0Sstevel@tonic-gate return (err); 610*0Sstevel@tonic-gate } else if ((offset + hdrsize + cnt) > maplen) { 611*0Sstevel@tonic-gate // re-adjust cnt so it reads up to the end of file 612*0Sstevel@tonic-gate cnt = (size_t)(maplen - (offset + hdrsize)); 613*0Sstevel@tonic-gate } 614*0Sstevel@tonic-gate 615*0Sstevel@tonic-gate // Zero-length reads are done 616*0Sstevel@tonic-gate if (GetHeader().Bytes_to_Bytes(cnt) == 0) { 617*0Sstevel@tonic-gate err = AUDIO_SUCCESS; 618*0Sstevel@tonic-gate err.sys = AUDIO_COPY_ZERO_LIMIT; 619*0Sstevel@tonic-gate return (err); 620*0Sstevel@tonic-gate } 621*0Sstevel@tonic-gate 622*0Sstevel@tonic-gate // Write the data to the destination and update pointers/ctrs 623*0Sstevel@tonic-gate svfrom = frompos; 624*0Sstevel@tonic-gate svto = topos; 625*0Sstevel@tonic-gate svlim = cnt; 626*0Sstevel@tonic-gate bptr = mapaddr + hdrsize + offset; 627*0Sstevel@tonic-gate err = to->WriteData(bptr, cnt, topos); 628*0Sstevel@tonic-gate limit = topos - svto; 629*0Sstevel@tonic-gate frompos = svfrom + limit; 630*0Sstevel@tonic-gate 631*0Sstevel@tonic-gate // Report short writes 632*0Sstevel@tonic-gate if (!err && (cnt < svlim)) 633*0Sstevel@tonic-gate err.sys = AUDIO_COPY_SHORT_OUTPUT; 634*0Sstevel@tonic-gate return (err); 635*0Sstevel@tonic-gate } 636