108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
/* the Music Player Daemon (MPD)
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* (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
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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 <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <errno.h>
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void inputStream_initFile() {
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}
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int inputStream_fileOpen(InputStream * inStream, char * filename) {
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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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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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if(fseek((FILE *)inStream->data,offset,whence)==0) {
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inStream->offset = ftell((FILE *)inStream->data);
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}
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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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if(fclose((FILE *)inStream->data)<0) {
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inStream->error = errno;
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}
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else return -1;
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return 0;
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}
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int inputStream_fileAtEOF(InputStream * inStream) {
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if(feof((FILE *)inStream->data)) 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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return 0;
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}
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