cb8f1af3bd
This will make refactoring features easier, especially now that pthreads support and larger refactorings are on the horizon. Hopefully, this will make porting to other platforms (even non-UNIX-like ones for masochists) easier, too. os_compat.h will house all the #includes for system headers considered to be the "core" of MPD. Headers for optional features will be left to individual source files. git-svn-id: https://svn.musicpd.org/mpd/trunk@7130 09075e82-0dd4-0310-85a5-a0d7c8717e4f
113 lines
2.7 KiB
C
113 lines
2.7 KiB
C
/* the Music Player Daemon (MPD)
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* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
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* This project's homepage is: http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "inputStream_file.h"
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#include "log.h"
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#include "os_compat.h"
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void inputStream_initFile(void)
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{
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}
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int inputStream_fileOpen(InputStream * inStream, char *filename)
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{
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FILE *fp;
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fp = fopen(filename, "r");
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if (!fp) {
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inStream->error = errno;
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return -1;
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}
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inStream->seekable = 1;
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fseek(fp, 0, SEEK_END);
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inStream->size = ftell(fp);
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fseek(fp, 0, SEEK_SET);
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#ifdef POSIX_FADV_SEQUENTIAL
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posix_fadvise(fileno(fp), (off_t)0, inStream->size, POSIX_FADV_SEQUENTIAL);
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#endif
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inStream->data = fp;
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inStream->seekFunc = inputStream_fileSeek;
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inStream->closeFunc = inputStream_fileClose;
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inStream->readFunc = inputStream_fileRead;
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inStream->atEOFFunc = inputStream_fileAtEOF;
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inStream->bufferFunc = inputStream_fileBuffer;
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return 0;
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}
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int inputStream_fileSeek(InputStream * inStream, long offset, int whence)
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{
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if (fseek((FILE *) inStream->data, offset, whence) == 0) {
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inStream->offset = ftell((FILE *) inStream->data);
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} else {
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inStream->error = errno;
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return -1;
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}
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return 0;
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}
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size_t inputStream_fileRead(InputStream * inStream, void *ptr, size_t size,
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size_t nmemb)
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{
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size_t readSize;
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readSize = fread(ptr, size, nmemb, (FILE *) inStream->data);
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if (readSize <= 0 && ferror((FILE *) inStream->data)) {
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inStream->error = errno;
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DEBUG("inputStream_fileRead: error reading: %s\n",
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strerror(inStream->error));
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}
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inStream->offset = ftell((FILE *) inStream->data);
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return readSize;
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}
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int inputStream_fileClose(InputStream * inStream)
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{
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if (fclose((FILE *) inStream->data) < 0) {
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inStream->error = errno;
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return -1;
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}
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return 0;
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}
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int inputStream_fileAtEOF(InputStream * inStream)
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{
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if (feof((FILE *) inStream->data))
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return 1;
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if (ferror((FILE *) inStream->data) && inStream->error != EINTR) {
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return 1;
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}
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return 0;
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}
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int inputStream_fileBuffer(InputStream * inStream)
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{
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return 0;
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}
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