/* the Music Player Daemon (MPD) * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com) * This project's homepage is: http://www.musicpd.org * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "inputStream_file.h" #include "log.h" #include <stdio.h> #include <string.h> #include <sys/types.h> #include <unistd.h> #include <errno.h> #define _XOPEN_SOURCE 600 #include <fcntl.h> void inputStream_initFile(void) { } int inputStream_fileOpen(InputStream * inStream, char *filename) { FILE *fp; fp = fopen(filename, "r"); if (!fp) { inStream->error = errno; return -1; } inStream->seekable = 1; fseek(fp, 0, SEEK_END); inStream->size = ftell(fp); fseek(fp, 0, SEEK_SET); #ifdef POSIX_FADV_SEQUENTIAL posix_fadvise(fileno(fp), (off_t)0, inStream->size, POSIX_FADV_SEQUENTIAL); #endif inStream->data = fp; inStream->seekFunc = inputStream_fileSeek; inStream->closeFunc = inputStream_fileClose; inStream->readFunc = inputStream_fileRead; inStream->atEOFFunc = inputStream_fileAtEOF; inStream->bufferFunc = inputStream_fileBuffer; return 0; } int inputStream_fileSeek(InputStream * inStream, long offset, int whence) { if (fseek((FILE *) inStream->data, offset, whence) == 0) { inStream->offset = ftell((FILE *) inStream->data); } else { inStream->error = errno; return -1; } return 0; } size_t inputStream_fileRead(InputStream * inStream, void *ptr, size_t size, size_t nmemb) { size_t readSize; readSize = fread(ptr, size, nmemb, (FILE *) inStream->data); if (readSize <= 0 && ferror((FILE *) inStream->data)) { inStream->error = errno; DEBUG("inputStream_fileRead: error reading: %s\n", strerror(inStream->error)); } inStream->offset = ftell((FILE *) inStream->data); return readSize; } int inputStream_fileClose(InputStream * inStream) { if (fclose((FILE *) inStream->data) < 0) { inStream->error = errno; return -1; } return 0; } int inputStream_fileAtEOF(InputStream * inStream) { if (feof((FILE *) inStream->data)) return 1; if (ferror((FILE *) inStream->data) && inStream->error != EINTR) { return 1; } return 0; } int inputStream_fileBuffer(InputStream * inStream) { return 0; }