66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
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#include "sysincludes.h"
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#include "msdos.h"
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#include "stream.h"
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int batchmode = 0;
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int flush_stream(Stream_t *Stream)
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{
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int ret=0;
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if(!batchmode) {
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if(Stream->Class->flush)
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ret |= Stream->Class->flush(Stream);
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if(Stream->Next)
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ret |= flush_stream(Stream->Next);
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}
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return ret;
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}
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Stream_t *copy_stream(Stream_t *Stream)
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{
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if(Stream)
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Stream->refs++;
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return Stream;
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}
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int free_stream(Stream_t **Stream)
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{
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int ret=0;
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if(!*Stream)
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return -1;
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if(! --(*Stream)->refs){
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if((*Stream)->Class->flush)
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ret |= (*Stream)->Class->flush(*Stream);
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if((*Stream)->Class->freeFunc)
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ret |= (*Stream)->Class->freeFunc(*Stream);
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if((*Stream)->Next)
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ret |= free_stream(&(*Stream)->Next);
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Free(*Stream);
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} else if ( (*Stream)->Next )
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ret |= flush_stream((*Stream)->Next);
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*Stream = NULL;
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return ret;
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}
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#define GET_DATA(stream, date, size, type, address) \
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(stream)->Class->get_data( (stream), (date), (size), (type), (address) )
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int get_data_pass_through(Stream_t *Stream, time_t *date, mt_size_t *size,
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int *type, int *address)
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{
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return GET_DATA(Stream->Next, date, size, type, address);
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}
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int read_pass_through(Stream_t *Stream, char *buf, mt_off_t start, size_t len)
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{
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return READS(Stream->Next, buf, start, len);
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}
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int write_pass_through(Stream_t *Stream, char *buf, mt_off_t start, size_t len)
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{
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return WRITES(Stream->Next, buf, start, len);
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}
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