Introduced fifo reference into isoburn object

src/burn_wrap.c

@@ -9,7 +9,7 @@
    Copyright 2007 Thomas Schmitt, <scdbackup@gmx.net> 
 */
 
-/* <<< A70929 : hardcoded CD-RW with fabricated -msinfo = 0,1600
+/* <<< A70929 : hardcoded CD-RW with fabricated -msinfo 
 #define Hardcoded_cd_rW 1
 #define Hardcoded_cd_rw_c1     12999
 #define Hardcoded_cd_rw_nwA   152660 
@@ -289,20 +289,41 @@ void isoburn_disc_write(struct burn_write_opts *opts, struct burn_disc *disc)
  int ret, multi= 1;
  struct isoburn *o;
  struct burn_drive *drive;
+ char reasons[BURN_REASONS_LEN];
+ enum burn_write_types write_type;
 
  drive= burn_write_opts_get_drive(opts);
  ret= isoburn_find_emulator(&o, drive, 0);
  if(ret<0)
    return;
  if(o!=NULL) {
+   o->wrote_well= -1;
    if(o->emulation_mode!=0) {
      multi= 0;
      if(o->emulation_mode>0 && o->nwa >= 0)
        burn_write_opts_set_start_byte(opts, ((off_t) o->nwa) * (off_t) 2048);
    }
  }
+
+ /* fprintf(stderr, "isoburn_EXPERIMENTAL: multi = %d\n", multi); */
+ /* burn_write_opts_set_simulate(opts, 1); */
+
  burn_write_opts_set_multi(opts, multi);
 
+ write_type= burn_write_opts_auto_write_type(opts, disc, reasons, 0);
+ if (write_type == BURN_WRITE_NONE) {
+    fprintf(stderr, "Failed to find a suitable write mode:\n%s\n", reasons);
+    o->wrote_well= 0;
+    return;
+ }
+
+/*
+ sprintf(reasons, "%d", (int) write_type);
+ fprintf(stderr, "isoburn_EXPERIMENTAL: write_type = %s\n",
+                 (write_type == BURN_WRITE_SAO ? "SAO" :
+                 (write_type == BURN_WRITE_TAO ? "TAO" : reasons)));
+*/
+
 #ifdef Hardcoded_cd_rW
  /* <<< A70929 : hardcoded CD-RW with fabricated -msinfo */
  fprintf(stderr, "Setting write address to LBA %d\n", Hardcoded_cd_rw_nwA);
@@ -380,24 +401,37 @@ ex:
 }
 
 
-#ifdef Libburn_obsoleted_on_its_way_ouT
-
-void isoburn_write_opts_set_start_byte(struct burn_write_opts *opts,
-                                      off_t value)
+int isoburn_drive_wrote_well(struct burn_drive *d)
 {
  int ret;
  struct isoburn *o;
- struct burn_drive *drive;
  
- drive= burn_write_opts_get_drive(opts);
- ret= isoburn_find_emulator(&o, drive, 0);
- if(ret<=0) /* no emulation, no burn_write_opts_set_start_byte() */
-   return;
- ret = isoburn_set_start_byte(o, value, 0);
- if(ret<=0)
-   return;
- burn_write_opts_set_start_byte(opts, ((off_t) o->nwa) * (off_t) 2048);
+ ret= isoburn_find_emulator(&o, d, 0);
+ if(ret<0)
+   return(-1);
+ if(ret>0)
+   if(o->wrote_well>=0)
+     return(o->wrote_well);
+ ret= burn_drive_wrote_well(d);
+ return ret;
+}
+
+
+int isoburn_get_fifo_status(struct burn_drive *d, int *size, int *free_bytes,
+			    char **status_text)
+{
+ int ret;
+ struct isoburn *o;
+
+ ret= isoburn_find_emulator(&o, d, 0);
+ if(ret<0)
+   return(-1);
+ if(o==NULL)
+   return(0);
+ if(o->fifo==NULL)
+   return(0);
+ ret= burn_fifo_inquire_status(o->fifo, size, free_bytes, status_text);
+ return(ret);
 }
 
-#endif /* Libburn_obsoleted_on_its_way_ouT */
 

src/isoburn.c

@@ -49,6 +49,8 @@ int isoburn_new(struct isoburn **objpt, int flag)
  o->emulation_mode= 0;
  o->min_start_byte= 0;
  o->nwa= 0;
+ o->fifo= NULL;
+ o->wrote_well= -1;
  o->src= NULL;
  o->fabricated_disc_status= BURN_DISC_UNREADY;
  for(i=0;i<65536;i++)
@@ -83,6 +85,8 @@ int isoburn_destroy(struct isoburn **objpt, int flag)
 
  if(o->target_volset!=NULL)
    iso_volset_free(o->target_volset);
+ if(o->fifo!=NULL)
+   burn_source_free(o->fifo);
 
  free((char *) o);
  *objpt= NULL;
@@ -228,7 +232,7 @@ static
 int isoburn_prepare_disc_aux(struct burn_drive *d, struct burn_disc **disc,
                              struct isoburn_source_opts *opts, int new_img)
 {
- struct burn_source *wsrc, *fifo_src;
+ struct burn_source *wsrc;
  struct burn_session *session;
  struct burn_track *track;
  struct isoburn *o;
@@ -237,8 +241,10 @@ int isoburn_prepare_disc_aux(struct burn_drive *d, struct burn_disc **disc,
  int ret;
 
  ret= isoburn_find_emulator(&o, d, 0);
- if(ret<0)
+ if(ret<0 || o==NULL)
    return -1;
+ o->wrote_well= 0; /* early end will be registered as failure */
+
 
  state = isoburn_disc_get_status(d);
  if (state != BURN_DISC_BLANK && state != BURN_DISC_APPENDABLE
@@ -287,10 +293,11 @@ int isoburn_prepare_disc_aux(struct burn_drive *d, struct burn_disc **disc,
  if (wsrc == NULL)
    return -1;
  
- // TODO check return values for failure. propertly clean-up on error
+ /* TODO check return values for failure. propertly clean-up on error */
 
- fifo_src = burn_fifo_source_new(wsrc, 2048, 2000, 0);
- if (fifo_src == NULL) {
+ o->fifo = burn_fifo_source_new(wsrc, 2048, 2000, 0);
+ burn_source_free(wsrc);
+ if (o->fifo == NULL) {
    fprintf(stderr, "Cannot attach fifo\n");
    return -1;
  }
@@ -298,9 +305,10 @@ int isoburn_prepare_disc_aux(struct burn_drive *d, struct burn_disc **disc,
  session = burn_session_create();
  burn_disc_add_session(*disc, session, BURN_POS_END);
  track = burn_track_create();
- burn_track_set_source(track, fifo_src);
+ burn_track_set_source(track, o->fifo);
  burn_session_add_track(session, track, BURN_POS_END);
- 
+
+ o->wrote_well= -1; /* neutral */
  return 1;
 }
 

src/isoburn.h

@@ -46,6 +46,17 @@ struct isoburn {
  */
  enum burn_disc_status fabricated_disc_status;
 
+ /* The fifo which is installed between track and libisofs burn_source
+ */
+ struct burn_source *fifo;
+
+ /* Indicator wether the most recent burn run worked :
+    -1 = undetermined, ask libburn , 0 = failure , 1 = success
+    To be inquired by isoburn_drive_wrote_well()
+ */
+ int wrote_well;
+
+
  /* --- Vreixo's part --- */
  
  /* The data source for reading the old image */

src/libisoburn.h

@@ -233,6 +233,35 @@ int isoburn_prepare_new_image(struct burn_drive *d, struct burn_disc **disc,
 void isoburn_disc_write(struct burn_write_opts *o, struct burn_disc *disc);
 
 
+/** Inquire state and fill parameters of the fifo which is attached to
+    the emerging track. This should be done in the pacifier loop while
+    isoburn_disc_write() or burn_disc_write() are active.
+    Hint: If only burn_write_opts and not burn_drive is known, then the drive
+          can be obtained by burn_write_opts_get_drive().
+    @parm d      The drive to which the track with the fifo gets burned.
+    @param size  The total size of the fifo
+    @param free_bytes  The current free capacity of the fifo
+    @param status_text  Returns a pointer to a constant text, see below
+    @return  <0 reply invalid, >=0 fifo status code:
+             bit0+1=input status, bit2=consumption status, i.e:
+             0="standby"   : data processing not started yet
+             1="active"    : input and consumption are active
+             2="ending"    : input has ended without error
+             3="failing"   : input had error and ended,
+             4="unused"    : ( consumption has ended before processing start )
+             5="abandoned" : consumption has ended prematurely
+             6="ended"     : consumption has ended without input error
+             7="aborted"   : consumption has ended after input error
+*/
+int isoburn_get_fifo_status(struct burn_drive *d, int *size, int *free_bytes,
+                            char **status_text);
+
+
+/** Inquire whether the most recent write run was successful.
+    Wrapper for: burn_drive_wrote_well()
+*/
+int isoburn_drive_wrote_well(struct burn_drive *d);
+
 /** Call this after isoburn_disc_write has finished and burn_drive_wrote_well()
     indicates success. It will eventually complete the emulation of
     multi-session functionality, if needed at all. Let libisoburn decide.
@@ -246,7 +275,7 @@ int isoburn_activate_session(struct burn_drive *drive);
     @param pacifier_func If not NULL: a function to produce appeasing messages.
                          See burn_abort_pacifier() in libburn.h for an example.
 */
-// TODO implement this
+/* TODO implement this */
 int isoburn_perform_write(struct burn_write_opts *o,
                           int (*pacifier_func)(void *handle, int patience, 
                                                int elapsed));