Integrated functionality of test/blank.c into test/burniso.c

trunk@386
Thomas Schmitt 17 years ago
parent 432484f46b
commit 96466c3be1

@ -21,11 +21,14 @@
approaches are shown here in application functions:
burn_app_aquire_by_adr() demonstrates usage as of cdrecord traditions
burn_app_aquire_by_driveno() demonstrates a scan-and-choose approach
With that aquired drive you can burn to CD-R or blank CD-RW.
This is demonstrated in:
With that aquired drive you blank a CD-RW
burn_app_blank_disc()
Between blanking and burning one eventually has to reload the drive status
burn_app_regrab()
With the aquired drive you can burn to CD-R or blank CD-RW
burn_app_payload()
When everything is done, main() shuts down libburn by
burn_drive_info_free()
When everything is done, main() releases the drive and shuts down libburn:
burn_drive_release();
burn_finish()
*/
@ -51,11 +54,6 @@
#include <stdlib.h>
/* Some in-advance definitions to allow a more comprehensive ordering
of the functions and their explanations in here */
int burn_app_aquire_by_adr(char *drive_adr);
int burn_app_aquire_by_driveno(int drive_no);
/** This is a rough example. For simplicity it uses global variables.
Drives are systemwide global, so we do not give away much of good style.
@ -74,6 +72,13 @@ static unsigned int n_drives;
static int simulate_burn = Burniso_try_to_simulatE ;
/* Some in-advance definitions to allow a more comprehensive ordering
of the functions and their explanations in here */
int burn_app_aquire_by_adr(char *drive_adr);
int burn_app_aquire_by_driveno(int *drive_no);
/* ------------------------------- API gestures ---------------------------- */
/** You need to aquire a drive before burning. The API offers this as one
compact call and alternatively as application controllable gestures of
@ -90,7 +95,7 @@ static int simulate_burn = Burniso_try_to_simulatE ;
locking of block devices. Others possibly don't. Some kernels do
nevertheless impose locking on open drives anyway (e.g. SuSE 9.0, 2.4.21).
*/
int burn_app_aquire_drive(char *drive_adr, int driveno)
int burn_app_aquire_drive(char *drive_adr, int *driveno)
{
int ret;
@ -101,6 +106,7 @@ int burn_app_aquire_drive(char *drive_adr, int driveno)
return ret;
}
/** If the persistent drive address is known, then this approach is much
more un-obtrusive to the systemwide livestock of drives. Only the
given drive device will be opened during this procedure.
@ -118,6 +124,7 @@ int burn_app_aquire_by_adr(char *drive_adr)
return ret;
}
/** This method demonstrates how to use libburn without knowing a persistent
drive address in advance. It has to make sure that after assessing the
list of available drives, all drives get closed again. Only then it is
@ -126,7 +133,7 @@ int burn_app_aquire_by_adr(char *drive_adr)
restarting it again with the much more un-obtrusive approach to use
a persistent address and thus to only touch the one desired drive.
*/
int burn_app_aquire_by_driveno(int driveno)
int burn_app_aquire_by_driveno(int *driveno)
{
char adr[BURN_DRIVE_ADR_LEN];
int ret, i;
@ -163,16 +170,16 @@ int burn_app_aquire_by_driveno(int driveno)
}
printf("-----------------------------------------------------------------------------\n\n");
if (driveno < 0) {
if (*driveno < 0) {
printf("Pseudo-drive \"-\" given : bus scanning done.\n");
return 2; /* only return 1 will cause a burn */
}
/* We already made our choice via command line. (default is 0) */
if (n_drives <= driveno || driveno < 0) {
if (n_drives <= *driveno || *driveno < 0) {
fprintf(stderr,
"Found only %d drives. Number %d not available.\n",
n_drives,driveno);
n_drives, *driveno);
return 0;
}
@ -183,14 +190,14 @@ printf("------------------------------------------------------------------------
You could now call burn_drive_grab() and avoid libburn restart.
We don't try to be smart here and follow the API's strong urge. */
if (burn_drive_get_adr(&(drives[driveno]), adr) <=0) {
if (burn_drive_get_adr(&(drives[*driveno]), adr) <=0) {
fprintf(stderr,
"Cannot inquire persistent drive address of drive number %d\n",
driveno);
*driveno);
return 0;
}
printf("Detected '%s' as persistent address of drive number %d\n",
adr,driveno);
adr,*driveno);
/* In cdrskin this causes a delayed sigsegv. I understand we risk only
a small memory leak by not doing:
@ -208,10 +215,96 @@ printf("------------------------------------------------------------------------
return 0;
}
ret = burn_app_aquire_by_adr(adr);
if (ret > 0)
*driveno = 0;
return ret;
}
/** Makes a previously used CD-RW ready for thorough re-usal.
To our knowledge it is hardly possible to abort an ongoing blank operation
because after start it is entirely handled by the drive.
So expect a blank run to survive the end of the blanking process and be
patient for the usual timespan of a normal blank run. Only after that
time has surely elapsed, only then you should start any rescue attempts
with the drive. If necessary at all.
*/
int burn_app_blank_disc(struct burn_drive *drive, int blank_fast)
{
enum burn_disc_status s;
struct burn_progress p;
int do_blank = 0;
#ifdef Blank_late_grab_obsoletion_revoke_and_faiL
/* This is obsoleted now by the burn_app_aquire* functions.
There is no real benefit in grabbing late.
Beneficial is to scan only one drive.
*/
if (!burn_drive_grab(drive, 1)) {
fprintf(stderr, "Unable to open the drive!\n");
return;
}
#endif /* Blank_late_grab_obsoletion_revoke_and_faiL */
while (burn_drive_get_status(drive, NULL))
usleep(1000);
while ((s = burn_disc_get_status(drive)) == BURN_DISC_UNREADY)
usleep(1000);
printf(
"Drive media status: %d (see libburn/libburn.h BURN_DISC_*)\n",s);
do_blank = 0;
if (s == BURN_DISC_BLANK) {
fprintf(stderr,
"IDLE: Blank CD media detected. Will leave it untouched\n");
} else if (s == BURN_DISC_FULL || s == BURN_DISC_APPENDABLE) {
do_blank = 1;
} else if (s == BURN_DISC_EMPTY) {
fprintf(stderr,"FATAL: No media detected in drive\n");
} else {
fprintf(stderr,
"FATAL: Cannot recognize drive and media state\n");
}
if(do_blank && !burn_disc_erasable(drive)) {
fprintf(stderr,
"FATAL : Media is not of erasable type\n");
do_blank = 0;
}
if (!do_blank)
return 2;
printf(
"Beginning to %s-blank CD media. Will display sector numbers.\n",
(blank_fast?"fast":"full"));
printf(
"Expect some garbage numbers and some 0 sector numbers at first.\n");
burn_disc_erase(drive, blank_fast);
while (burn_drive_get_status(drive, &p)) {
printf("%d\n", p.sector);
sleep(2);
}
printf("Done\n");
return 1;
}
/** This gesture is necessary to get the drive info after blanking */
int burn_app_regrab(struct burn_drive *drive) {
int ret;
printf("Releasing and regrabbing drive ...\n");
burn_drive_release(drive, 0);
ret = burn_drive_grab(drive, 0);
if (ret != 0)
printf("done\n");
else
printf("Failed\n");
return !!ret;
}
/** Brings the preformatted image (ISO 9660, afio, ext2, whatever) onto media.
To make sure your image is readable on any Linux machine, you should
@ -237,7 +330,7 @@ printf("------------------------------------------------------------------------
i believe. But cdrecord had long years of time to complete itself.
We are still practicing. Help us with that. :))
*/
void burn_app_payload(struct burn_drive *drive, const char *path, off_t size)
int burn_app_payload(struct burn_drive *drive, const char *path, off_t size)
{
struct burn_source *src;
struct burn_disc *disc;
@ -262,7 +355,7 @@ void burn_app_payload(struct burn_drive *drive, const char *path, off_t size)
if (burn_track_set_source(tr, src) != BURN_SOURCE_OK) {
printf("problem with the source\n");
return;
return 0;
}
burn_session_add_track(session, tr, BURN_POS_END);
burn_source_free(src);
@ -274,7 +367,7 @@ void burn_app_payload(struct burn_drive *drive, const char *path, off_t size)
*/
if (!burn_drive_grab(drive, 1)) {
printf("Unable to open the drive!\n");
return;
return 0;
}
#endif /* Burniso_late_grab_obsoletion_revoke_and_faiL */
@ -285,7 +378,6 @@ void burn_app_payload(struct burn_drive *drive, const char *path, off_t size)
while ((s = burn_disc_get_status(drive)) == BURN_DISC_UNREADY)
usleep(1000);
if (s != BURN_DISC_BLANK) {
burn_drive_release(drive, 0);
if (s == BURN_DISC_FULL || s == BURN_DISC_APPENDABLE)
fprintf(stderr,
"FATAL: Media with data detected. Need blank media.\n");
@ -294,7 +386,7 @@ void burn_app_payload(struct burn_drive *drive, const char *path, off_t size)
else
fprintf(stderr,
"FATAL: Cannot recognize drive and media state\n");
return;
return 0;
}
o = burn_write_opts_new(drive);
@ -333,26 +425,41 @@ void burn_app_payload(struct burn_drive *drive, const char *path, off_t size)
sleep(2);
}
printf("\n");
burn_drive_release(drive, 0);
burn_track_free(tr);
burn_session_free(session);
burn_disc_free(disc);
if(simulate_burn)
printf("\n*** Did TRY to SIMULATE burning ***\n\n");
return 0;
}
/** Converts command line arguments into a few program parameters.
*/
void parse_args(int argc, char **argv, char **drive_adr, int *driveno,
char **iso, off_t *size)
int *do_blank, char **iso, off_t *size)
{
int i;
int i, insuffient_parameters = 0;
int help = 0;
static char no_drive_adr[]= {""};
static char no_drive_adr[] = {""}, no_iso[] = {""};
*drive_adr = no_drive_adr;
*driveno = 0;
*do_blank = 0;
*iso = no_iso;
*size = 650*1024*1024;
for (i = 1; i < argc; ++i) {
if (!strcmp(argv[i], "--drive")) {
if (!strcmp(argv[i], "--blank_fast")) {
*do_blank = 1;
} else if (!strcmp(argv[i], "--blank_full")) {
*do_blank = 2;
} else if (!strcmp(argv[i], "--burn_for_real")) {
simulate_burn = 0;
} else if (!strcmp(argv[i], "--drive")) {
++i;
if (i >= argc) {
printf("--drive requires an argument\n");
@ -365,12 +472,6 @@ void parse_args(int argc, char **argv, char **drive_adr, int *driveno,
*driveno = atoi(argv[i]);
} else
*drive_adr = argv[i];
} else if (!strcmp(argv[i], "--burn_for_real")) {
simulate_burn = 0;
} else if (!strcmp(argv[i], "--try_to_simulate")) {
simulate_burn = 1;
} else if (!strcmp(argv[i], "--stdin_size")) {
++i;
if (i >= argc) {
@ -378,6 +479,9 @@ void parse_args(int argc, char **argv, char **drive_adr, int *driveno,
exit(3);
} else
*size = atoi(argv[i]);
} else if (!strcmp(argv[i], "--try_to_simulate")) {
simulate_burn = 1;
} else if (!strcmp(argv[i], "--verbose")) {
++i;
if (i >= argc)
@ -389,11 +493,14 @@ void parse_args(int argc, char **argv, char **drive_adr, int *driveno,
} else
*iso = argv[i];
}
if (help || ( (!*iso) && *driveno >= 0) ) {
if ((*iso)[0] ==0 && *driveno >= 0 && *do_blank == 0)
insuffient_parameters = 1;
if (help || insuffient_parameters ) {
printf("Usage: %s\n", argv[0]);
printf(" [--drive <address>|<driveno>|\"-\"]\n");
printf(" [--stdin_size <bytes>] [--verbose <level>]\n");
printf(" [--burn_for_real|--try_to_simulate] <imagefile>|\"-\"\n");
printf(" [--verbose <level>] [--blank_fast|--blank_full]\n");
printf(" [--burn_for_real|--try_to_simulate] [--stdin_size <bytes>]\n");
printf(" <imagefile>|\"-\"\n");
printf("Examples\n");
printf("A bus scan (needs rw-permissions to see a drive):\n");
printf(" %s --drive -\n",argv[0]);
@ -410,18 +517,21 @@ void parse_args(int argc, char **argv, char **drive_adr, int *driveno,
printf("To be read from *not mounted* CD via:\n");
printf(" afio -tvZ /dev/hdc\n");
printf("Program tar would need a clean EOF which our padded CD cannot deliver.\n");
exit(4);
if (insuffient_parameters)
exit(4);
}
}
int main(int argc, char **argv)
{
int driveno = 0, ret;
char *iso = NULL, *drive_adr= NULL;
off_t stdin_size= 650*1024*1024;
/* Note: the effective default values are set in parse_args() */
int driveno = 0, ret, do_blank= 0;
char *iso = "", *drive_adr= "";
off_t stdin_size= 0;
parse_args(argc, argv, &drive_adr, &driveno, &iso, &stdin_size);
parse_args(argc, argv, &drive_adr, &driveno, &do_blank,
&iso, &stdin_size);
printf("Initializing library ...\n");
if (burn_initialize())
@ -432,15 +542,39 @@ int main(int argc, char **argv)
return 1;
}
ret= burn_app_aquire_drive(drive_adr,driveno);
/** Note: driveno might change its value in this call */
ret= burn_app_aquire_drive(drive_adr, &driveno);
if (ret<=0) {
fprintf(stderr,"\nFATAL: Failed to aquire drive.\n");
return 2;
{ ret = 2; goto finish_libburn; }
}
if (do_blank) {
ret = burn_app_blank_disc(drives[driveno].drive,
do_blank == 1);
if (ret<=0)
{ ret = 4; goto release_drive; }
ret = burn_app_regrab(drives[driveno].drive);
if (ret<=0) {
fprintf(stderr,
"FATAL: Cannot release and grab again drive after blanking\n");
{ ret = 5; goto finish_libburn; }
}
}
if (ret == 1)
burn_app_payload(drives[driveno].drive, iso, stdin_size);
if (iso[0] != 0) {
ret = burn_app_payload(drives[driveno].drive, iso, stdin_size);
if (ret<=0)
{ ret = 6; goto release_drive; }
}
ret = 0;
release_drive:;
burn_drive_release(drives[driveno].drive, 0);
finish_libburn:;
/* This app does not bother to know about exact scan state.
Better to accept a memory leak here. We are done anyway. */
/* burn_drive_info_free(drives); */
burn_drive_info_free(drives);
burn_finish();
return 0;
return ret;
}

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