Got rid of assert() in sector.c by soft means

cdrskin/cdrskin_timestamp.h

@@ -1 +1 @@
-#define Cdrskin_timestamP "2006.10.09.123518"
+#define Cdrskin_timestamP "2006.10.10.112545"

libburn/asserts.txt

@@ -409,7 +409,7 @@ ts A61007
 
 ------------------------------------------------------------------------------
 
-   27) libburn/sector.c:	assert(outlen >= inlen);
+++ 27) libburn/sector.c:	assert(outlen >= inlen);
        libburn/sector.c:	assert(outmode & BURN_MODE_RAW);
        libburn/sector.c:	assert(offset != -1);
 static convert_data():
@@ -422,6 +422,8 @@ Called by sector_toc() sector_pregap() sector_postgap() sector_lout()
 => change return type of convert_data()
 => all callers interpret return value and eventually return failure
 
+ts A61007
+
 ------------------------------------------------------------------------------
 
 ++ 28) libburn/sector.c:	assert(0);
@@ -438,34 +440,41 @@ ts A61008
 
 ------------------------------------------------------------------------------
 
-   29) libburn/sector.c:	assert(qmode == 1 || qmode == 2 || qmode == 3);
+++ 29) libburn/sector.c:	assert(qmode == 1 || qmode == 2 || qmode == 3);
 subcode_user():
 - can not happen -
 
 : Unknown reason of assert()
 => remove assert()
 
+ts A61010
+
 ------------------------------------------------------------------------------
 
-   30) libburn/sector.c:	assert(modebyte == 1);
+++ 30) libburn/sector.c:	assert(modebyte == 1);
 sector_headers():
-Several unacceptable settings within struct burn_write_opts and mode parameter
+Does only accept modes BURN_AUDIO, BURN_MODE1 or write_type BURN_WRITE_SAO
 
 Called by sector_toc() sector_pregap() sector_postgap() sector_lout()
           sector_data()
 
-: Severe Application Error
+: Severe Libburn Error
-=> change return type of convert_data()
+=> new functions sector_headers_is_ok(), burn_disc_write_is_ok() 
-=> all callers interpret return value and eventually return failure
+   help to catch problem in API burn_disc_write()
+=> issue LIBDAX_MSGS_SEV_FATAL
+
+ts A61009
 
 ------------------------------------------------------------------------------
 
-   31) libburn/sector.c:		assert(0);
+++ 31) libburn/sector.c:		assert(0);
 process_q()
 - defunct -
 
 => :)
 
+ts A61009
+
 ------------------------------------------------------------------------------
 
 ++ 32) libburn/sg.c:		assert("drive busy" == "non fatal");

libburn/async.c

@@ -258,6 +258,9 @@ void burn_disc_write(struct burn_write_opts *opts, struct burn_disc *disc)
 				"Drive capabilities not inquired yet", 0, 0);
 		return;
 	}
+	/* ts A61009 : obsolete Assert in sector_headers() */
+	if (! burn_disc_write_is_ok(opts, disc)) /* issues own msgs */
+		return;
 
 	o.drive = opts->drive;
 	o.opts = opts;

libburn/libdax_msgs.h

@@ -315,6 +315,12 @@ Range "scdbackup"          :  0x00020000 to 0x0002ffff
  0x00020108 (SORRY,HIGH)   = Drive is not grabbed on disc status inquiry
  0x00020108 (FATAL,HIGH)   = Could not allocate new drive object
  0x00020109 (FATAL,HIGH)   = Library not running
+ 0x0002010a (FATAL,HIGH)   = Unsuitable track mode
+ 0x0002010b (FATAL,HIGH)   = Burn run failed
+ 0x0002010c
+ 0x0002010d
+ 0x0002010e
+ 0x0002010f
  0x00020110 (FATAL,HIGH)   = Persistent drive address too long
  0x00020111 (FATAL,HIGH)   = Could not allocate new auxiliary object
  0x00020112 (SORRY,HIGH)   = Bad combination of write_type and block_type

libburn/sector.c

@@ -1,7 +1,10 @@
 /* -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 8; -*- */
 
 #include <stdio.h>
-#include <assert.h>
+
+/* ts A61010 */
+/* #include <a ssert.h> */
+
 #include <unistd.h>
 #include <string.h>
 #include "error.h"
@@ -189,7 +192,9 @@ static unsigned char *get_sector(struct burn_write_opts *opts, int inmode)
 }
 
 /* either inmode == outmode, or outmode == raw.  anything else is bad news */
-static void convert_data(struct burn_write_opts *o, struct burn_track *track,
+/* ts A61010 : changed type to int in order to propagate said bad news */
+/** @return 1 is ok, <= 0 is failure */
+static int convert_data(struct burn_write_opts *o, struct burn_track *track,
 			 int inmode, unsigned char *data)
 {
 	int outlen, inlen;
@@ -202,14 +207,21 @@ static void convert_data(struct burn_write_opts *o, struct burn_track *track,
 
 	outlen = burn_sector_length(outmode);
 	inlen = burn_sector_length(inmode);
-	assert(outlen >= inlen);
+
+	/* ts A61010 */
+	/* a ssert(outlen >= inlen); */
+	if (outlen < inlen)
+		return 0;
 
 	if ((outmode & BURN_MODE_BITS) == (inmode & BURN_MODE_BITS)) {
 		get_bytes(track, inlen, data);
-		return;
+		return 1;
 	}
 
-	assert(outmode & BURN_MODE_RAW);
+	/* ts A61010 */
+	/* a ssert(outmode & BURN_MODE_RAW); */
+	if (!(outmode & BURN_MODE_RAW))
+		return 0;
 
 	if (inmode & BURN_MODE1)
 		offset = 16;
@@ -217,9 +229,16 @@ static void convert_data(struct burn_write_opts *o, struct burn_track *track,
 		offset = 0;
 	if (inmode & BURN_AUDIO)
 		offset = 0;
-	assert(offset != -1);
+
+	/* ts A61010 */
+	/* a ssert(offset != -1); */
+	if (offset == -1)
+		return 0;
+
 	get_bytes(track, inlen, data + offset);
+	return 1;
 }
+
 static void convert_subs(struct burn_write_opts *o, int inmode,
 			 unsigned char *subs, unsigned char *sector)
 {
@@ -300,9 +319,11 @@ int sector_toc(struct burn_write_opts *o, int mode)
 	unsigned char subs[96];
 
 	data = get_sector(o, mode);
-	if (!data)
+	if (data == NULL)
+		return 0;
+	/* ts A61010 */
+	if (convert_data(o, NULL, mode, data) <= 0)
 		return 0;
-	convert_data(o, NULL, mode, data);
 	subcode_toc(d, mode, subs);
 	convert_subs(o, mode, subs, data);
 	sector_headers(o, data, mode, 1);
@@ -318,9 +339,11 @@ int sector_pregap(struct burn_write_opts *o,
 	unsigned char subs[96];
 
 	data = get_sector(o, mode);
-	if (!data)
+	if (data == NULL)
+		return 0;
+	/* ts A61010 */
+	if (convert_data(o, NULL, mode, data) <= 0)
 		return 0;
-	convert_data(o, NULL, mode, data);
 	subcode_user(o, subs, tno, control, 0, NULL, 1);
 	convert_subs(o, mode, subs, data);
 	sector_headers(o, data, mode, 0);
@@ -336,9 +359,11 @@ int sector_postgap(struct burn_write_opts *o,
 	unsigned char *data;
 
 	data = get_sector(o, mode);
-	if (!data)
+	if (data == NULL)
 		return 0;
-	convert_data(o, NULL, mode, data);
+	/* ts A61010 */
+	if (convert_data(o, NULL, mode, data) <= 0)
+		return 0;;
 /* use last index in track */
 	subcode_user(o, subs, tno, control, 1, NULL, 1);
 	convert_subs(o, mode, subs, data);
@@ -425,7 +450,8 @@ void subcode_user(struct burn_write_opts *o, unsigned char *subcodes,
 		}
 	}
 
-	assert(qmode == 1 || qmode == 2 || qmode == 3);
+	/* ts A61010 : this cannot happen. Assert for fun ? */
+	/* a ssert(qmode == 1 || qmode == 2 || qmode == 3); */
 
 	switch (qmode) {
 	case 1:
@@ -507,7 +533,9 @@ int sector_lout(struct burn_write_opts *o, unsigned char control, int mode)
 	data = get_sector(o, mode);
 	if (!data)
 		return 0;
-	convert_data(o, NULL, mode, data);
+	/* ts A61010 */
+	if (convert_data(o, NULL, mode, data) <= 0)
+		return 0;
 	subcode_lout(o, control, subs);
 	convert_subs(o, mode, subs, data);
 	sector_headers(o, data, mode, 0);
@@ -524,7 +552,9 @@ int sector_data(struct burn_write_opts *o, struct burn_track *t, int psub)
 	data = get_sector(o, t->mode);
 	if (!data)
 		return 0;
-	convert_data(o, t, t->mode, data);
+	/* ts A61010 */
+	if (convert_data(o, t, t->mode, data) <= 0)
+		return 0;
 
 	if (!t->source->read_sub)
 		subcode_user(o, subs, t->entry->point,
@@ -569,6 +599,17 @@ int dec_to_bcd(int d)
 	return (top << 4) + bottom;
 }
 
+int sector_headers_is_ok(struct burn_write_opts *o, int mode)
+{
+	if (mode & BURN_AUDIO)	/* no headers for "audio" */
+		return 1;
+	if (o->write_type == BURN_WRITE_SAO)
+		return 1;
+	if (mode & BURN_MODE1)
+		return 2;
+	return 0;
+}
+
 void sector_headers(struct burn_write_opts *o, unsigned char *out,
 		    int mode, int leadin)
 {
@@ -577,6 +618,17 @@ void sector_headers(struct burn_write_opts *o, unsigned char *out,
 	int min, sec, frame;
 	int modebyte = -1;
 
+	/* ts A61009 */
+#if 1
+	int ret;
+
+	ret = sector_headers_is_ok(o, mode);
+	if (ret != 2)
+		return;
+	modebyte = 1;
+
+#else
+
 	if (mode & BURN_AUDIO)	/* no headers for "audio" */
 		return;
 	if (o->write_type == BURN_WRITE_SAO)
@@ -584,7 +636,10 @@ void sector_headers(struct burn_write_opts *o, unsigned char *out,
 	if (mode & BURN_MODE1)
 		modebyte = 1;
 
-	assert(modebyte == 1);
+#endif
+
+	/* ts A61009 : now ensured by burn_disc_write_is_ok() */
+	/* a ssert(modebyte == 1); */
 
 	out[0] = 0;
 	memset(out + 1, 0xFF, 10);	/* sync */
@@ -656,7 +711,9 @@ void process_q(struct burn_drive *d, unsigned char *q)
 */
 		break;
 	default:
-		assert(0);
+
+		/* ts A61009 : if reactivated then witout Assert */
+		a ssert(0);
 	}
 }
 #endif

libburn/sector.h

@@ -18,6 +18,10 @@ int sector_postgap(struct burn_write_opts *, unsigned char tno,
 		    unsigned char control, int mode);
 int sector_lout(struct burn_write_opts *, unsigned char control, int mode);
 int sector_data(struct burn_write_opts *, struct burn_track *t, int psub);
+
+/* ts A61009 */
+int sector_headers_is_ok(struct burn_write_opts *o, int mode);
+
 void sector_headers(struct burn_write_opts *, unsigned char *,
 		    int mode, int leadin);
 void subcode_user(struct burn_write_opts *, unsigned char *s,

libburn/write.c

@@ -530,6 +530,27 @@ int burn_write_track(struct burn_write_opts *o, struct burn_session *s,
 	return 1;
 }
 
+/* ts A61009 */
+int burn_disc_write_is_ok(struct burn_write_opts *o, struct burn_disc *disc)
+{
+	int i, t;
+	char msg[80];
+
+	for (i = 0; i < disc->sessions; i++)
+		for (t = 0; t < disc->session[i]->tracks; t++)
+			if (!sector_headers_is_ok(
+					o, disc->session[i]->track[t]->mode))
+				goto bad_track_mode_found;
+	return 1;
+bad_track_mode_found:;
+	sprintf(msg, "Unsuitable track mode 0x%x in track %d of session %d",
+		disc->session[i]->track[t]->mode, i+1, t+1);
+	libdax_msgs_submit(libdax_messenger, -1, 0x0002010a,
+			LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
+			msg, 0, 0);
+	return 0;
+}
+
 void burn_disc_write_sync(struct burn_write_opts *o, struct burn_disc *disc)
 {
 	struct cue_sheet *sheet;
@@ -640,5 +661,8 @@ return crap.  so we send the command, then ignore the result.
 fail:
 	d->sync_cache(d);
 	burn_print(1, "done - failed\n");
+	libdax_msgs_submit(libdax_messenger, d->global_index, 0x0002010b,
+			LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
+			"Burn run failed", 0, 0);
 	d->busy = BURN_DRIVE_IDLE;
 }

libburn/write.h

@@ -12,6 +12,10 @@ struct cue_sheet *burn_create_toc_entries(struct burn_write_opts *o,
 					  struct burn_session *session);
 int burn_sector_length(int trackmode);
 int burn_subcode_length(int trackmode);
+
+/* ts A61009 */
+int burn_disc_write_is_ok(struct burn_write_opts *o, struct burn_disc *disc);
+
 void burn_disc_write_sync(struct burn_write_opts *o, struct burn_disc *disc);
 int burn_write_leadin(struct burn_write_opts *o,
 		       struct burn_session *s, int first);