Revoked urge to have a magic[4] in burn_source (free_data is magic enough)
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@ -1 +1 @@
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#define Cdrskin_timestamP "2007.10.04.213107"
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#define Cdrskin_timestamP "2007.10.05.085929"
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@ -127,8 +127,6 @@ failure:;
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return NULL;
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}
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fs->magic[0] = 'f'; fs->magic[1] = 'i';
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fs->magic[2] = 'l'; fs->magic[3] = 'e';
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fs->datafd = fd1;
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fs->subfd = fd2;
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@ -167,8 +165,6 @@ struct burn_source *burn_fd_source_new(int datafd, int subfd, off_t size)
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fs = malloc(sizeof(struct burn_source_file));
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if (fs == NULL) /* ts A70825 */
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return NULL;
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fs->magic[0] = 'f'; fs->magic[1] = 'i';
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fs->magic[2] = 'l'; fs->magic[3] = 'e';
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fs->datafd = datafd;
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fs->subfd = subfd;
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fs->fixed_size = size;
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@ -200,6 +196,11 @@ struct burn_source *burn_fd_source_new(int datafd, int subfd, off_t size)
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and a synchronous shoveller which is here.
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*/
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/* fifo_ng has a ringbuffer and runs in a thread. og is on its way out. */
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#define Libburn_fifo_nG 1
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#ifndef Libburn_fifo_nG
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static int fifo_read(struct burn_source *source,
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unsigned char *buffer,
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int size)
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@ -291,6 +292,8 @@ int burn_fifo_source_shoveller_og(struct burn_source *source, int flag)
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return (ret >= 0);
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}
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#endif Libburn_fifo_nG
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/* ts A71003 */
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/* ----------------------------- fifo ng ------------------------- */
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@ -580,8 +583,6 @@ struct burn_source *burn_fifo_source_new(struct burn_source *inp,
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fs = malloc(sizeof(struct burn_source_fifo));
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if (fs == NULL)
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return NULL;
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fs->magic[0] = 'f'; fs->magic[1] = 'i';
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fs->magic[2] = 'f'; fs->magic[3] = 'o';
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fs->is_started = 0;
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fs->thread_pid = 0;
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fs->thread_pid_valid = 0;
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@ -643,8 +644,7 @@ int burn_fifo_inquire_status(struct burn_source *source,
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*status_text = NULL;
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*size = 0;
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if (fs->magic[0] != 'f' || fs->magic[1] != 'i' ||
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fs->magic[2] != 'f' || fs->magic[3] != 'o') {
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if (source->free_data != fifo_free_ng) {
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libdax_msgs_submit(libdax_messenger, -1, 0x00020157,
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LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
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"burn_source is not a fifo object", 0, 0);
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@ -428,27 +428,13 @@ struct burn_source {
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/** Source specific data. Here the various source classes express their
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specific properties and the instance objects store their individual
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management data.
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You SHOULD implement two attributes in *data :
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1) The first member of the structure should be a 4 byte array
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magic[] with the first byte being set to an uppercase letter
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and the other 3 set to some value you deem unique for your
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burn_source.
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libburnia sets magic[0] to a lower case letter in its burn_source
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objects. Established magic values are:
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{'f','i','l','e'} , {'f','i','f','o'} , {'e','1','1','9'}.
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2) off_t fixed_size should store an eventual value from (*set_size)
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and if set be used as reply of (*get_size).
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E.g. data could point to a struct like this:
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struct app_burn_source
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{
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char magic[4];
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off_t fixed_size;
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struct my_app *app_handle;
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... other individual source parameters ...
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off_t fixed_size;
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};
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With .magic[] getting initialized as {'M','y','a','p'}
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and .fixed_size initialized as 0 (= invalid).
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Function (*free_data) has to be prepared to clean up and free
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the struct.
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