int read_srf(srf_t *srf, char *srf_name, Settings *opts) {
int type;
off_t pos;
Previous_data seen = { NULL, 0, NULL, 0, NULL, 0 };
Trace_reader trc = { 0, 0, 0, NULL, NULL, 0, NULL, NULL };
do {
if ((pos = ftello(srf->fp)) < 0) {
printf("Couldn't ftello() on %s: %s\n",
srf_name, strerror(errno));
return -1;
}
switch (type = srf_next_block_type(srf)) {
case -1:
/* EOF */
return 0;
case SRFB_CONTAINER:
printf("Found container header at %zd\n", pos);
if (0 != srf_read_cont_hdr(srf, &srf->ch)) {
printf("srf_read_cont_hdr failed for %s", srf_name);
return -1;
}
break;
case SRFB_XML:
printf("Found xml block at %zd\n", pos);
if (0 != srf_read_xml(srf, &srf->xml)) {
printf("srf_read_xml failed for %s\n", srf_name);
return -1;
}
break;
case SRFB_TRACE_HEADER:
printf("Found trace header at %zd\n", pos);
if (0 != srf_read_trace_hdr(srf, &srf->th)) {
printf("srf_read_trace_header failed for %s\n", srf_name);
return -1;
}
if (0 != check_trace_header(opts, srf, &seen)) {
printf("Bad trace header found in %s\n", srf_name);
return -1;
}
break;
case SRFB_TRACE_BODY:
if (opts->verbosity > 0) {
printf("Found trace body at %zd\n", pos);
}
if (0 != srf_read_trace_body(srf, &srf->tb, 0)) {
printf("srf_read_trace_body failed for %s\n", srf_name);
return -1;
}
if (0 != check_trace_body(opts, &trc, srf)) {
printf("Bad trace body found in %s\n", srf_name);
return -1;
}
if (srf->tb.trace) {
free(srf->tb.trace);
srf->tb.trace = NULL;
}
break;
case SRFB_INDEX:
if (0 != srf_read_index_hdr(srf, &srf->hdr, 1)) {
printf("srf_read_index_hdr failed for %s\n", srf_name);
return -1;
}
/* Skip the index body */
if (0 != fseeko(srf->fp, pos + srf->hdr.size, SEEK_SET)) {
printf("Couldn't fseeko() on %s: %s\n",
srf_name, strerror(errno));
return -1;
}
break;
case SRFB_NULL_INDEX: {
uint64_t idx = 0;
printf("Found null index at %zd\n", pos);
if (1 != fread(&idx, 8, 1, srf->fp)) {
printf("Couldn't read null index from %s: %s\n",
srf_name, strerror(errno));
return -1;
}
if (0 != idx) {
printf("Null index does not contain zeros in %s\n",
srf_name);
}
break;
}
default:
printf("Block of unknown type '%d' found in %s\n\n",
type, srf_name);
return -1;
}
} while (1);
}
/*
* Looks for a trace name in an SRF archive and returns the binary contents
* if found, or NULL if not.
*/
mFILE *find_reading(srf_t *srf, char *tr_name) {
do {
int type;
switch(type = srf_next_block_type(srf)) {
case -1:
/* EOF */
return NULL;
case SRFB_CONTAINER:
if (0 != srf_read_cont_hdr(srf, &srf->ch))
return NULL;
break;
case SRFB_XML:
if (0 != srf_read_xml(srf, &srf->xml))
return NULL;
break;
case SRFB_TRACE_HEADER: {
/* off_t pos = ftell(srf->fp); */
if (0 != srf_read_trace_hdr(srf, &srf->th))
return NULL;
#if 0
/*
* If the name prefix doesn't match tr_name then skip this entire
* block.
*/
if (0 != strncmp(tr_name, srf->th.id_prefix,
strlen(srf->th.id_prefix)) &&
0 != srf->th.next_block_offset) {
fseek(srf->fp, pos + srf->th.next_block_offset, SEEK_SET);
}
#endif
break;
}
case SRFB_TRACE_BODY: {
mFILE *mf = mfcreate(NULL, 0);
srf_trace_body_t tb;
char name[512];
if (!mf || 0 != srf_read_trace_body(srf, &tb, 0))
return NULL;
sprintf(name, "%s%s", srf->th.id_prefix, tb.read_id);
if (strcmp(name, tr_name)) {
mfdestroy(mf);
if (tb.trace)
free(tb.trace);
continue;
}
if (srf->th.trace_hdr_size)
mfwrite(srf->th.trace_hdr, 1,
srf->th.trace_hdr_size, mf);
if (tb.trace_size)
mfwrite(tb.trace, 1, tb.trace_size, mf);
if (tb.trace)
free(tb.trace);
mrewind(mf);
return mf;
}
case SRFB_INDEX: {
off_t pos = ftello(srf->fp);
srf_read_index_hdr(srf, &srf->hdr, 1);
/* Skip the index body */
fseeko(srf->fp, pos + srf->hdr.size, SEEK_SET);
break;
}
case SRFB_NULL_INDEX:
break;
default:
fprintf(stderr, "Block of unknown type '%c'. Aborting\n", type);
return NULL;
}
} while (1);
return NULL;
}
/*
* Given the archive name and the level_mode
* generate information about the archive
*
* Note the generated srf file is NOT indexed
*
* Returns 0 on success.
*/
int srf_info(char *input, int level_mode, long *read_count, long *chunk_count,
uint64_t *chunk_size, long key_count[NCHUNKS][NKEYS],
long type_count[NCHUNKS][NTYPES], HashTable *regn_hash,
uint64_t *base_count) {
srf_t *srf;
off_t pos;
int type;
int count = 0;
long trace_body_count = 0;
char name[1024];
if (NULL == (srf = srf_open(input, "rb"))) {
perror(input);
return 1;
}
while ((type = srf_next_block_type(srf)) >= 0) {
switch (type) {
case SRFB_CONTAINER:
if( trace_body_count ){
if( level_mode & LEVEL_NAME )
printf( " ... %s x%ld\n", name+strlen(srf->th.id_prefix), trace_body_count);
trace_body_count = 0;
}
if (0 != srf_read_cont_hdr(srf, &srf->ch)) {
fprintf(stderr, "Error reading container header.\nExiting.\n");
exit(1);
}
break;
case SRFB_XML:
if( trace_body_count ){
if( level_mode & LEVEL_NAME )
printf( " ... %s x%ld\n", name+strlen(srf->th.id_prefix), trace_body_count);
trace_body_count = 0;
}
if (0 != srf_read_xml(srf, &srf->xml)) {
fprintf(stderr, "Error reading XML.\nExiting.\n");
exit(1);
}
break;
case SRFB_TRACE_HEADER:
if( trace_body_count ){
if( level_mode & LEVEL_NAME )
printf( " ... %s x%ld\n", name+strlen(srf->th.id_prefix), trace_body_count);
trace_body_count = 0;
}
if (0 != srf_read_trace_hdr(srf, &srf->th)) {
fprintf(stderr, "Error reading trace header.\nExiting.\n");
exit(1);
}
if( 0 == (level_mode & (LEVEL_CHUNK | LEVEL_BASE)) )
break;
/* Decode ZTR chunks in the header */
if (srf->mf)
mfdestroy(srf->mf);
srf->mf = mfcreate(NULL, 0);
if (srf->th.trace_hdr_size)
mfwrite(srf->th.trace_hdr, 1, srf->th.trace_hdr_size, srf->mf);
if (srf->ztr)
delete_ztr(srf->ztr);
mrewind(srf->mf);
if (NULL != (srf->ztr = partial_decode_ztr(srf, srf->mf, NULL))) {
srf->mf_pos = mftell(srf->mf);
} else {
/* Maybe not enough to decode or no headerBlob. */
/* So delay until decoding the body. */
srf->mf_pos = 0;
}
mfseek(srf->mf, 0, SEEK_END);
srf->mf_end = mftell(srf->mf);
break;
case SRFB_TRACE_BODY: {
srf_trace_body_t old_tb;
ztr_t *ztr_tmp;
int no_trace = (level_mode & (LEVEL_CHUNK | LEVEL_BASE) ? 0 : 1);
if (0 != srf_read_trace_body(srf, &old_tb, no_trace)) {
fprintf(stderr, "Error reading trace body.\nExiting.\n");
exit(1);
}
if (-1 == construct_trace_name(srf->th.id_prefix,
(unsigned char *)old_tb.read_id,
old_tb.read_id_length,
name, 512)) {
fprintf(stderr, "Error constructing trace name.\nExiting.\n");
exit(1);
}
trace_body_count++;
if( 1 == trace_body_count ){
if( level_mode & LEVEL_NAME )
printf( "trace_name: %s + %s", srf->th.id_prefix, name+strlen(srf->th.id_prefix));
}
read_count[READ_TOTAL]++;
if (old_tb.flags & SRF_READ_FLAG_BAD_MASK ){
read_count[READ_BAD]++;
} else {
read_count[READ_GOOD]++;
}
if( 0 == (level_mode & (LEVEL_CHUNK | LEVEL_BASE)) )
break;
if (!srf->mf) {
fprintf(stderr, "Error reading trace body.\nExiting.\n");
exit(1);
}
mfseek(srf->mf, srf->mf_end, SEEK_SET);
if (old_tb.trace_size) {
mfwrite(old_tb.trace, 1, old_tb.trace_size, srf->mf);
free(old_tb.trace);
old_tb.trace = NULL;
}
mftruncate(srf->mf, mftell(srf->mf));
mfseek(srf->mf, srf->mf_pos, SEEK_SET);
if (srf->ztr)
ztr_tmp = ztr_dup(srf->ztr); /* inefficient, but simple */
else
ztr_tmp = NULL;
if ((ztr_tmp = partial_decode_ztr(srf, srf->mf, ztr_tmp))) {
int i;
for (i=0; i<ztr_tmp->nchunks; i++) {
int ichunk = -1;
switch (ztr_tmp->chunk[i].type) {
case ZTR_TYPE_BASE:
ichunk = CHUNK_BASE;
chunk_size[ichunk] += ztr_tmp->chunk[i].dlength;
if( parse_base(ztr_tmp, &ztr_tmp->chunk[i], base_count) ){
delete_ztr(ztr_tmp);
return 1;
}
break;
case ZTR_TYPE_CNF1:
ichunk = CHUNK_CNF1;
chunk_size[ichunk] += ztr_tmp->chunk[i].dlength;
break;
case ZTR_TYPE_CNF4:
ichunk = CHUNK_CNF4;
chunk_size[ichunk] += ztr_tmp->chunk[i].dlength;
break;
case ZTR_TYPE_SAMP:
ichunk = CHUNK_SAMP;
chunk_size[ichunk] += ztr_tmp->chunk[i].dlength;
break;
case ZTR_TYPE_SMP4:
ichunk = CHUNK_SMP4;
chunk_size[ichunk] += ztr_tmp->chunk[i].dlength;
break;
case ZTR_TYPE_REGN:
ichunk = CHUNK_REGN;
chunk_size[ichunk] += ztr_tmp->chunk[i].dlength;
if( NULL == parse_regn(ztr_tmp, &ztr_tmp->chunk[i], regn_hash) ){
delete_ztr(ztr_tmp);
return 1;
}
break;
default:
break;
}
if( ichunk > -1 ) {
chunk_count[ichunk]++;
count_mdata_keys(ztr_tmp, &ztr_tmp->chunk[i], ichunk, key_count, type_count);
}
}
}
if( ztr_tmp )
delete_ztr(ztr_tmp);
count++;
if( (level_mode == LEVEL_CHECK) && (count == 10) ){
printf( " ... %s x%ld\n", name+strlen(srf->th.id_prefix), trace_body_count);
srf_destroy(srf, 1);
return 0;
}
break;
}
case SRFB_INDEX: {
off_t pos = ftell(srf->fp);
if( trace_body_count ){
if( level_mode & LEVEL_NAME )
printf( " ... %s x%ld\n", name+strlen(srf->th.id_prefix), trace_body_count);
trace_body_count = 0;
}
printf( "Reading srf index block\n");
if (0 != srf_read_index_hdr(srf, &srf->hdr, 1)) {
srf_destroy(srf, 1);
fprintf(stderr, "Error reading srf index block header.\nExiting.\n");
exit(1);
}
/* Skip the index body */
fseeko(srf->fp, pos + srf->hdr.size, SEEK_SET);
break;
}
case SRFB_NULL_INDEX: {
uint64_t ilen;
if( trace_body_count ){
if( level_mode & LEVEL_NAME )
printf( " ... %s x%ld\n", name+strlen(srf->th.id_prefix), trace_body_count);
trace_body_count = 0;
}
printf( "Reading srf null index block\n");
/*
* Maybe the last 8 bytes of a the file (or previously was
* last 8 bytes prior to concatenating SRF files together).
* If so it's the index length and should always be 8 zeros.
*/
if (1 != fread(&ilen, 8, 1, srf->fp)) {
srf_destroy(srf, 1);
fprintf(stderr, "Error reading srf null index block.\nExiting.\n");
exit(1);
}
if (ilen != 0) {
srf_destroy(srf, 1);
fprintf(stderr, "Invalid srf null index block.\nExiting.\n");
exit(1);
}
break;
}
default:
srf_destroy(srf, 1);
fprintf(stderr, "Block of unknown type '%c'\nExiting.\n", type);
exit(1);
}
}
if( trace_body_count ){
if( level_mode & LEVEL_NAME )
printf( " ... %s x%ld\n", name+strlen(srf->th.id_prefix), trace_body_count);
trace_body_count = 0;
}
/* the type should be -1 (EOF) */
if( type != -1 ) {
fprintf(stderr, "Block of unknown type '%c'\nExiting.\n", type);
exit(1);
}
/* are we really at the end of the srf file */
pos = ftell(srf->fp);
fseek(srf->fp, 0, SEEK_END);
if( pos != ftell(srf->fp) ){
fprintf(stderr, "srf file is corrupt\n");
exit(1);
}
srf_destroy(srf, 1);
return 0;
}
