384 lines
8.6 KiB
C
384 lines
8.6 KiB
C
/* -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 8; -*- */
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#include "libburn.h"
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#include "transport.h"
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#include "drive.h"
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#include "write.h"
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#include "options.h"
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#include "async.h"
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#include "init.h"
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#include "back_hacks.h"
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#include <pthread.h>
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#include <stdlib.h>
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#include <stdio.h>
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/*
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#include <a ssert.h>
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*/
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#include "libdax_msgs.h"
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extern struct libdax_msgs *libdax_messenger;
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#define SCAN_GOING() (workers && !workers->drive)
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typedef void *(*WorkerFunc) (void *);
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struct scan_opts
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{
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struct burn_drive_info **drives;
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unsigned int *n_drives;
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int done;
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};
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struct erase_opts
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{
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struct burn_drive *drive;
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int fast;
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};
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/* ts A61230 */
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struct format_opts
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{
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struct burn_drive *drive;
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off_t size;
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int flag;
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};
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struct write_opts
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{
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struct burn_drive *drive;
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struct burn_write_opts *opts;
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struct burn_disc *disc;
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};
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struct w_list
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{
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struct burn_drive *drive;
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pthread_t thread;
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struct w_list *next;
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union w_list_data
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{
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struct scan_opts scan;
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struct erase_opts erase;
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struct format_opts format;
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struct write_opts write;
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} u;
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};
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static struct w_list *workers;
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static struct w_list *find_worker(struct burn_drive *d)
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{
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struct w_list *a;
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for (a = workers; a; a = a->next)
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if (a->drive == d)
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return a;
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return NULL;
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}
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static void add_worker(struct burn_drive *d, WorkerFunc f, void *data)
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{
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struct w_list *a;
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struct w_list *tmp;
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a = malloc(sizeof(struct w_list));
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a->drive = d;
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a->u = *(union w_list_data *)data;
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/* insert at front of the list */
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a->next = workers;
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tmp = workers;
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workers = a;
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if (d)
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d->busy = BURN_DRIVE_SPAWNING;
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if (pthread_create(&a->thread, NULL, f, a)) {
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free(a);
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workers = tmp;
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return;
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}
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}
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static void remove_worker(pthread_t th)
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{
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struct w_list *a, *l = NULL;
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for (a = workers; a; l = a, a = a->next)
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if (a->thread == th) {
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if (l)
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l->next = a->next;
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else
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workers = a->next;
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free(a);
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break;
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}
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/* ts A61006 */
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/* a ssert(a != NULL);/ * wasn't found.. this should not be possible */
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if (a == NULL)
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libdax_msgs_submit(libdax_messenger, -1, 0x00020101,
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LIBDAX_MSGS_SEV_WARNING, LIBDAX_MSGS_PRIO_HIGH,
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"remove_worker() cannot find given worker item", 0, 0);
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}
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static void *scan_worker_func(struct w_list *w)
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{
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burn_drive_scan_sync(w->u.scan.drives, w->u.scan.n_drives);
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w->u.scan.done = 1;
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return NULL;
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}
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int burn_drive_scan(struct burn_drive_info *drives[], unsigned int *n_drives)
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{
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struct scan_opts o;
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int ret = 0;
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/* ts A61006 : moved up from burn_drive_scan_sync , former Assert */
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if (!burn_running) {
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libdax_msgs_submit(libdax_messenger, -1, 0x00020109,
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LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
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"Library not running (on attempt to scan)", 0, 0);
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*drives = NULL;
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*n_drives = 0;
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return -1;
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}
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/* cant be anything working! */
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/* ts A61006 */
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/* a ssert(!(workers && workers->drive)); */
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if (workers != NULL && workers->drive != NULL) {
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drive_is_active:;
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libdax_msgs_submit(libdax_messenger, -1, 0x00020102,
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LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
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"A drive operation is still going on (want to scan)",
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0, 0);
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*drives = NULL;
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*n_drives = 0;
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return -1;
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}
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if (!workers) {
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/* start it */
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/* ts A61007 : test moved up from burn_drive_scan_sync()
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was burn_wait_all() */
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if (!burn_drives_are_clear())
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goto drive_is_active;
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*drives = NULL;
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*n_drives = 0;
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o.drives = drives;
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o.n_drives = n_drives;
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o.done = 0;
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add_worker(NULL, (WorkerFunc) scan_worker_func, &o);
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} else if (workers->u.scan.done) {
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/* its done */
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ret = workers->u.scan.done;
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remove_worker(workers->thread);
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/* ts A61006 */
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/* a ssert(workers == NULL); */
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if (workers != NULL) {
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libdax_msgs_submit(libdax_messenger, -1, 0x00020101,
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LIBDAX_MSGS_SEV_WARNING, LIBDAX_MSGS_PRIO_HIGH,
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"After scan a drive operation is still going on",
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0, 0);
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return -1;
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}
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} else {
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/* still going */
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}
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return ret;
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}
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static void *erase_worker_func(struct w_list *w)
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{
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burn_disc_erase_sync(w->u.erase.drive, w->u.erase.fast);
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remove_worker(pthread_self());
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return NULL;
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}
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void burn_disc_erase(struct burn_drive *drive, int fast)
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{
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struct erase_opts o;
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/* A70103 : will be set to 0 by burn_disc_erase_sync() */
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drive->cancel = 1;
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/* ts A61006 */
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/* a ssert(drive); */
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/* a ssert(!SCAN_GOING()); */
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/* a ssert(!find_worker(drive)); */
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if((drive == NULL)) {
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libdax_msgs_submit(libdax_messenger, drive->global_index,
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0x00020104,
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LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
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"NULL pointer caught in burn_disc_erase", 0, 0);
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return;
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}
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if ((SCAN_GOING()) || find_worker(drive)) {
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libdax_msgs_submit(libdax_messenger, drive->global_index,
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0x00020102,
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LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
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"A drive operation is still going on (want to erase)",
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0, 0);
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return;
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}
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/* ts A70103 moved up from burn_disc_erase_sync() */
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/* ts A60825 : allow on parole to blank appendable CDs */
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if ( ! (drive->status == BURN_DISC_FULL ||
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(drive->status == BURN_DISC_APPENDABLE &&
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! libburn_back_hack_42) ) ) {
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libdax_msgs_submit(libdax_messenger, drive->global_index,
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0x00020130,
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LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
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"Drive and media state unsuitable for blanking",
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0, 0);
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return;
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}
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o.drive = drive;
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o.fast = fast;
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add_worker(drive, (WorkerFunc) erase_worker_func, &o);
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}
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/* ts A61230 */
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static void *format_worker_func(struct w_list *w)
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{
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burn_disc_format_sync(w->u.format.drive, w->u.format.size,
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w->u.format.flag);
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remove_worker(pthread_self());
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return NULL;
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}
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/* ts A61230 */
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void burn_disc_format(struct burn_drive *drive, off_t size, int flag)
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{
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struct format_opts o;
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int ok = 0;
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char msg[160];
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if ((SCAN_GOING()) || find_worker(drive)) {
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libdax_msgs_submit(libdax_messenger, drive->global_index,
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0x00020102,
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LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
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"A drive operation is still going on (want to format)",
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0, 0);
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return;
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}
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if (flag & 128) /* application prescribed format type */
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flag |= 16; /* enforce re-format */
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if (drive->current_profile == 0x14)
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ok = 1; /* DVD-RW sequential */
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else if (drive->current_profile == 0x13 && (flag & 16))
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ok = 1; /* DVD-RW Restricted Overwrite with force bit */
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else if (drive->current_profile == 0x1a) {
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ok = 1; /* DVD+RW */
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size = 0;
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flag &= ~(2|8); /* no insisting in size 0, no expansion */
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flag |= 4; /* format up to maximum size */
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}
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if (!ok) {
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sprintf(msg,"Will not format media type %4.4Xh",
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drive->current_profile);
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libdax_msgs_submit(libdax_messenger, drive->global_index,
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0x00020129,
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LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
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msg, 0, 0);
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drive->cancel = 1;
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return;
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}
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o.drive = drive;
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o.size = size;
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o.flag = flag;
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add_worker(drive, (WorkerFunc) format_worker_func, &o);
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}
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static void *write_disc_worker_func(struct w_list *w)
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{
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burn_disc_write_sync(w->u.write.opts, w->u.write.disc);
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/* the options are refcounted, free out ref count which we added below
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*/
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burn_write_opts_free(w->u.write.opts);
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remove_worker(pthread_self());
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return NULL;
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}
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void burn_disc_write(struct burn_write_opts *opts, struct burn_disc *disc)
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{
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struct write_opts o;
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int i, j, mode, mixed_mode = 0;
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/* ts A61006 */
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/* a ssert(!SCAN_GOING()); */
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/* a ssert(!find_worker(opts->drive)); */
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if ((SCAN_GOING()) || find_worker(opts->drive)) {
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libdax_msgs_submit(libdax_messenger, opts->drive->global_index,
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0x00020102,
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LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
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"A drive operation is still going on (want to write)",
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0, 0);
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return;
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}
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/* ts A61007 : obsolete Assert in spc_select_write_params() */
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if (!opts->drive->mdata->valid) {
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libdax_msgs_submit(libdax_messenger,
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opts->drive->global_index, 0x00020113,
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LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
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"Drive capabilities not inquired yet", 0, 0);
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return;
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}
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/* ts A61009 : obsolete Assert in sector_headers() */
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if (! burn_disc_write_is_ok(opts, disc)) /* issues own msgs */
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return;
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/* ts A70122 : libburn SAO code mishandles mode changes */
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for (i = 0; i < disc->sessions; i++) {
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if (disc->session[i]->tracks <= 0)
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continue;
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mode = disc->session[i]->track[0]->mode;
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for (j = 1; j < disc->session[i]->tracks; j++)
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if (mode != disc->session[i]->track[j]->mode)
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mixed_mode = 1;
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}
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if (mixed_mode && opts->write_type == BURN_WRITE_SAO) {
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libdax_msgs_submit(libdax_messenger,
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opts->drive->global_index, 0x00020133,
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LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
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"Cannot mix data and audio in SAO mode", 0, 0);
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return;
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}
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o.drive = opts->drive;
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o.opts = opts;
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o.disc = disc;
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opts->refcount++;
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add_worker(opts->drive, (WorkerFunc) write_disc_worker_func, &o);
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}
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void burn_async_join_all(void)
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{
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void *ret;
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while (workers)
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pthread_join(workers->thread, &ret);
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}
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