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New API function isoburn_prepare_blind_grow() for -as mkisofs -multi

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This commit is contained in:
Thomas Schmitt
2008-07-05 13:25:06 +00:00
parent 837f60c2e4
commit 88ef7d06f4
7 changed files with 224 additions and 44 deletions
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78
libisoburn/isoburn.c
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@ -119,6 +119,7 @@ int isoburn_new(struct isoburn **objpt, int flag)
o->drive= NULL;
o->emulation_mode= 0;
o->fabricated_msc1= -1;
o->fabricated_msc2= -1;
o->zero_nwa= Libisoburn_overwriteable_starT;
o->min_start_byte= o->zero_nwa * 2048;
o->nwa= o->zero_nwa;
@ -130,6 +131,7 @@ int isoburn_new(struct isoburn **objpt, int flag)
for(i=0;i<Libisoburn_target_head_sizE;i++)
o->target_iso_head[i]= 0;
o->image= NULL;
o->iso_data_source= NULL;
o->read_pacifier= NULL;
o->read_pacifier_handle= NULL;
o->msgs_submit= NULL;
@ -175,7 +177,8 @@ int isoburn_destroy(struct isoburn **objpt, int flag)
isoburn_toc_entry_destroy(&(o->toc), 1); /* all */
if(o->iso_source!=NULL)
burn_source_free(o->iso_source);
if(o->iso_data_source!=NULL)
iso_data_source_unref(o->iso_data_source);
free((char *) o);
*objpt= NULL;
return(1);
@ -334,10 +337,14 @@ int isoburn_msgs_submit(struct isoburn *o, int error_code, char msg_text[],
}
/* @param flag bit0= modifying rather than growing
bit1= prepare for early release of input drive:
wait until input and then disable image data source
*/
static
int isoburn_prepare_disc_aux(struct burn_drive *in_d, struct burn_drive *out_d,
struct burn_disc **disc,
struct isoburn_imgen_opts *opts, int new_img)
struct isoburn_imgen_opts *opts, int flag)
{
struct burn_source *wsrc;
struct burn_session *session;
@ -345,7 +352,18 @@ int isoburn_prepare_disc_aux(struct burn_drive *in_d, struct burn_drive *out_d,
struct isoburn *in_o, *out_o;
IsoWriteOpts *wopts= NULL;
enum burn_disc_status state;
int ret, fifo_chunks, lba, nwa;
int ret, fifo_chunks, nwa, i, new_img, early_indev_release;
size_t buffer_size= 0, buffer_free= 0;
char msg[160];
new_img= flag&1;
early_indev_release= flag&2;
if(new_img && early_indev_release) {
isoburn_msgs_submit(in_o, 0x00060000,
"Programming error: Wrong session setup: new_img && early_indev_release",
0, "FATAL", 0);
{ret= -4; goto ex;}
}
ret= isoburn_find_emulator(&in_o, in_d, 0);
if(ret<0 || in_o==NULL)
@ -405,19 +423,12 @@ int isoburn_prepare_disc_aux(struct burn_drive *in_d, struct burn_drive *out_d,
iso_write_opts_set_output_charset(wopts, opts->output_charset);
iso_write_opts_set_fifo_size(wopts, fifo_chunks);
ret = isoburn_disc_track_lba_nwa(out_d, NULL, 0, &lba, &nwa);
ret= isoburn_get_msc2(out_o, NULL, &nwa, 0);
if (ret != 1) {
isoburn_msgs_submit(out_o, 0x00060000,
"Cannot determine next writeable address", 0, "FAILURE", 0);
{ret= -3; goto ex;}
}
if (nwa == 0 && state == BURN_DISC_APPENDABLE) {
isoburn_msgs_submit(out_o, 0x00060000,
"Encountered 0 as next writeable address of appendable",
0, "FAILURE", 0);
{ret= -4; goto ex;}
}
iso_write_opts_set_ms_block(wopts, nwa);
opts->effective_lba= nwa;
iso_write_opts_set_appendable(wopts, !new_img);
@ -429,6 +440,30 @@ int isoburn_prepare_disc_aux(struct burn_drive *in_d, struct burn_drive *out_d,
isoburn_report_iso_error(ret, "Cannot create burn source", 0, "FAILURE", 0);
{ret= -1; goto ex;}
}
if (early_indev_release) {
for(i= 0; i<300; i++) {
/* <<< ??? */
if((i%30) == 0) {
sprintf(msg, "Waiting for data in fifo since %d seconds", i/30);
isoburn_msgs_submit(in_o, 0x00060000, msg, 0, "DEBUG", 0);
}
usleep(100000);
ret= iso_ring_buffer_get_status(wsrc, &buffer_size, &buffer_free);
if(ret >0 && buffer_size != buffer_free)
break;
}
/* <<< ??? */
sprintf(msg,
"After %.1f seconds: %d bytes of output available (fifo state=%d)",
((double) i+1) / 10.0, (int) (buffer_size - buffer_free), ret);
isoburn_msgs_submit(in_o, 0x00060000, msg, 0, "DEBUG", 0);
if(in_o->iso_data_source!=NULL)
isoburn_data_source_shutdown(in_o->iso_data_source, 0);
}
/* TODO check return values for failure. propertly clean-up on error */
@ -474,6 +509,27 @@ int isoburn_prepare_new_image(struct burn_drive *d, struct burn_disc **disc,
}
/* API since 0.2.2 */
int isoburn_prepare_blind_grow(struct burn_drive *d, struct burn_disc **disc,
struct isoburn_imgen_opts *opts,
struct burn_drive *out_drive, int nwa)
{
int ret;
struct isoburn *o= NULL;
if(nwa >= 0) {
ret= isoburn_find_emulator(&o, out_drive, 0);
if(ret<0 || o==NULL)
return(-1);
o->fabricated_msc2= nwa;
}
ret= isoburn_prepare_disc_aux(d, out_drive, disc, opts, 2);
if (ret<=0)
return ret;
return(1);
}
/* API @since 0.1.0
@param flag bit0= this is a regular end, not an abort
give up source reference