96 lines
2.0 KiB
C
96 lines
2.0 KiB
C
/* -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 8; -*- */
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/* Copyright (c) 2004 - 2006 Derek Foreman, Ben Jansens
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Copyright (c) 2006 - 2010 Thomas Schmitt <scdbackup@gmx.net>
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Provided under GPL version 2 or later.
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*/
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#ifndef BURN__FILE_H
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#define BURN__FILE_H
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struct burn_source_file
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{
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char magic[4];
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int datafd;
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int subfd;
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off_t fixed_size;
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};
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/* ts A70126 : burn_source_file obsoleted burn_source_fd */
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/* ts A70930 */
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struct burn_source_fifo {
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char magic[4];
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/* The fifo stays inactive and unequipped with eventual resources
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until its read() method is called for the first time.
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Only then burn_fifo_start() gets called, allocates the complete
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resources, starts a thread with burn_fifo_source_shuffler()
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which shuffles data and finally destroys the resources.
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This late start is to stay modest in case of multiple tracks
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in one disc.
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*/
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int is_started;
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void *thread_handle; /* actually a pointer to a thread_t */
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int thread_pid;
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int thread_is_valid;
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/* the burn_source for which this fifo is acting as proxy */
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struct burn_source *inp;
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int inp_read_size;
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/* <<< up to now it was only a pipe. This is on its way out. */
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int outlet[2];
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/* The ring buffer mechanism */
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int chunksize;
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int chunks;
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char *buf;
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volatile int buf_writepos;
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volatile int buf_readpos;
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volatile int end_of_input;
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volatile int input_error;
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volatile int end_of_consumption;
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off_t in_counter;
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off_t out_counter;
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int total_min_fill;
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int interval_min_fill;
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int put_counter;
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int get_counter;
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int empty_counter;
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int full_counter;
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};
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/** The worker behind the fifo thread.
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Gets started from burn_fifo_start() in async.c
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*/
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int burn_fifo_source_shoveller(struct burn_source *source, int flag);
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/* ts B00922 */
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struct burn_source_offst {
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/* See burn_offst_source_new() */
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struct burn_source *inp;
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struct burn_source *prev;
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off_t start;
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off_t size;
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/* To help offst_free() */
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struct burn_source *next;
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/* The current reading position */
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int running;
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off_t pos;
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};
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#endif /* LIBBURN__FILE_H */
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