diff options
Diffstat (limited to 'src/input_file.c')
-rw-r--r-- | src/input_file.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/input_file.c b/src/input_file.c new file mode 100644 index 000000000..de7d0b5a3 --- /dev/null +++ b/src/input_file.c @@ -0,0 +1,115 @@ +/* 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 "input_file.h" + +#include "log.h" +#include "os_compat.h" + +void inputStream_initFile(void) +{ +} + +int inputStream_fileOpen(struct input_stream *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; + + inStream->ready = 1; + + return 0; +} + +int inputStream_fileSeek(struct input_stream *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(struct input_stream *inStream, + void *ptr, size_t size) +{ + size_t readSize; + + readSize = fread(ptr, 1, size, (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(struct input_stream *inStream) +{ + if (fclose((FILE *) inStream->data) < 0) { + inStream->error = errno; + return -1; + } + + return 0; +} + +int inputStream_fileAtEOF(struct input_stream *inStream) +{ + if (feof((FILE *) inStream->data)) + return 1; + + if (ferror((FILE *) inStream->data) && inStream->error != EINTR) { + return 1; + } + + return 0; +} + +int inputStream_fileBuffer(mpd_unused struct input_stream *inStream) +{ + return 0; +} |