New API call isoburn_toc_disc_get_incmpl_sess()

libisoburn/burn_wrap.c

@@ -1586,6 +1586,7 @@ int isoburn_toc_destroy_arrays(struct isoburn_toc_disc *o, int flag)
 struct isoburn_toc_disc *isoburn_toc_drive_get_disc(struct burn_drive *d)
 {
  int ret, session_count= 0, track_count= 0, num_tracks= 0, i, j;
+ int open_sessions= 0;
  struct isoburn *o;
  struct isoburn_toc_entry *t;
  struct isoburn_toc_disc *toc_disc= NULL;
@@ -1601,6 +1602,7 @@ struct isoburn_toc_disc *isoburn_toc_drive_get_disc(struct burn_drive *d)
  toc_disc->tracks= NULL;
  toc_disc->track_pointers= NULL;
  toc_disc->session_count= 0;
+ toc_disc->incomplete_session_count= 0;
  toc_disc->track_count= 0;
  toc_disc->toc= NULL; 
 
@@ -1641,18 +1643,26 @@ failure:;
    return(NULL);
  }
  s= burn_disc_get_sessions(toc_disc->disc, &session_count);
- for(i= 0; i<session_count; i++) {
+ open_sessions= burn_disc_get_incomplete_sessions(toc_disc->disc);
+ for(i= 0; i < session_count + open_sessions; i++) {
    tracks = burn_session_get_tracks(s[i], &num_tracks);
+   if(i == session_count + open_sessions - 1 && open_sessions > 0) {
+     /* Do not count the invisible track of the last incomplete session */
+     num_tracks--;
+   }
    track_count+= num_tracks;
  }
- if(session_count<=0 || track_count<=0)
+ if(session_count + open_sessions <= 0 || track_count <= 0)
    goto failure;
- ret= isoburn_toc_new_arrays(toc_disc, session_count, track_count, 0);
+ ret= isoburn_toc_new_arrays(toc_disc, session_count + open_sessions,
+                             track_count, 0);
  if(ret<=0)
    goto failure;
  track_count= 0;
- for(i= 0; i<session_count; i++) {
+ for(i= 0; i < session_count + open_sessions; i++) {
    tracks = burn_session_get_tracks(s[i], &num_tracks);
+   if(i == session_count + open_sessions - 1 && open_sessions > 0)
+     num_tracks--;
    toc_disc->sessions[i].session= s[i];
    toc_disc->sessions[i].track_pointers= toc_disc->track_pointers+track_count;
    toc_disc->sessions[i].track_count= num_tracks;
@@ -1664,6 +1674,7 @@ failure:;
    track_count+= num_tracks;
  }
  toc_disc->session_count= session_count;
+ toc_disc->incomplete_session_count= open_sessions;
  toc_disc->track_count= track_count;
  return(toc_disc);
 }
@@ -1672,7 +1683,7 @@ failure:;
 int isoburn_toc_disc_get_sectors(struct isoburn_toc_disc *disc)
 {
  struct isoburn_toc_entry *t;
- int ret= 0, num_sessions, num_tracks;
+ int ret= 0, num_sessions, num_tracks, open_sessions= 0, session_idx= -1;
  struct burn_session **sessions;
  struct burn_track **tracks;
  struct burn_toc_entry entry;
@@ -1684,9 +1695,23 @@ int isoburn_toc_disc_get_sectors(struct isoburn_toc_disc *disc)
      ret= t->start_lba + t->track_blocks;
  } else if(disc->disc!=NULL) {
    sessions= burn_disc_get_sessions(disc->disc, &num_sessions);
-   if(num_sessions > 0) {
-     tracks = burn_session_get_tracks(sessions[num_sessions - 1],
-                                      &num_tracks);
+   open_sessions= burn_disc_get_incomplete_sessions(disc->disc);
+   if(num_sessions + open_sessions > 0) {
+     session_idx= num_sessions + open_sessions - 1;
+     tracks = burn_session_get_tracks(sessions[session_idx], &num_tracks);
+     if(open_sessions > 0) {
+       /* Do not count the invisible track of the last incomplete session */
+       num_tracks--;
+     }
+     if(num_tracks <= 0)
+       session_idx--;
+   }
+   if(session_idx >= 0) {
+     tracks = burn_session_get_tracks(sessions[session_idx], &num_tracks);
+     if(session_idx == num_sessions + open_sessions - 1 && open_sessions > 0) {
+       /* Do not count the invisible track of the last incomplete session */
+       num_tracks--;
+     }
      if(num_tracks > 0) {
        burn_track_get_entry(tracks[num_tracks - 1], &entry);
        if(entry.extensions_valid & 1)
@@ -1709,6 +1734,12 @@ struct isoburn_toc_session **isoburn_toc_disc_get_sessions(
 }
 
 
+int isoburn_toc_disc_get_incmpl_sess(struct isoburn_toc_disc *disc)
+{
+ return(disc->incomplete_session_count);
+}
+
+
 int isoburn_toc_session_get_sectors(struct isoburn_toc_session *s)
 {
  struct isoburn_toc_entry *t;

libisoburn/isoburn.h

@@ -28,7 +28,6 @@ struct isoburn_toc_entry {
  int track_no; /* point */
  int start_lba;
  int track_blocks;
-
  char *volid; /* For caching a volume id from emulated toc on overwriteables */
 
  struct isoburn_toc_entry *next;
@@ -768,6 +767,7 @@ struct isoburn_toc_disc {
  struct isoburn_toc_track *tracks;               /* storage array */
  struct isoburn_toc_track **track_pointers;      /* storage array */
  int session_count;
+ int incomplete_session_count;
  int track_count;
  struct isoburn_toc_entry *toc;
 };

libisoburn/libisoburn.h

@@ -596,7 +596,11 @@ struct isoburn_toc_disc *isoburn_toc_drive_get_disc(struct burn_drive *d);
 int isoburn_toc_disc_get_sectors(struct isoburn_toc_disc *disc);
 
 
-/** Get the array of session handles from the table of content.
+/** Get the array of session handles and the number of complete sessions
+    from the table of content.
+    The result array contains *num + isoburn_toc_disc_get_incmpl_sess()
+    elements. All above *num are incomplete sessions.
+    Typically there is at most one incomplete session with no track.
     Wrapper for: burn_disc_get_sessions()
     @since 0.1.6
     @param disc The master handle of the medium
@@ -607,6 +611,16 @@ struct isoburn_toc_session **isoburn_toc_disc_get_sessions(
                                       struct isoburn_toc_disc *disc, int *num);
 
 
+/** Obtain the number of incomplete sessions which are recorded in the
+    result array of isoburn_toc_disc_get_sessions() after the complete
+    sessions. See above.
+    @since 1.2.8
+    @param disc The master handle of the medium
+    @return  the number of incomplete sessions
+*/
+int isoburn_toc_disc_get_incmpl_sess(struct isoburn_toc_disc *disc);
+
+
 /** Tell the number of 2048 byte blocks covered by a particular session.
     Wrapper for: burn_session_get_sectors()
     @since 0.1.6

libisoburn/libisoburn.ver

@@ -105,6 +105,7 @@ isoburn_set_read_pacifier;
 isoburn_set_truncate;
 isoburn_sync_after_write;
 isoburn_toc_disc_free;
+isoburn_toc_disc_get_incmpl_sess;
 isoburn_toc_disc_get_sectors;
 isoburn_toc_disc_get_sessions;
 isoburn_toc_drive_get_disc;

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2013.01.13.102527"
+#define Xorriso_timestamP "2013.01.13.200742"