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/*
* Copyright (c) 2016 Intel Corporation.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <tle_dring.h>
static const char *
str_drb_dummy(const struct tle_dring *dr, const struct tle_drb *db)
{
return (db == &dr->dummy) ? "<dummy>" : "";
}
static const char *
str_obj_state(const struct tle_dring *dr, const struct tle_drb *db,
uint32_t idx)
{
if (db->start + idx < dr->cons.tail)
return "<stale>";
else if (db->start + idx >= dr->prod.tail)
return "<free>";
else
return NULL;
}
static void
drb_obj_dump(FILE *f, int32_t verb, const struct tle_dring *dr,
const struct tle_drb *db, uint32_t idx)
{
const char *st;
st = str_obj_state(dr, db, idx);
/* pointer to object is valid, dump it. */
if (st == NULL)
fprintf(f, "\t\t\t\t%u:%p\n", db->start + idx, db->objs[idx]);
/* dump in verbose mode only. */
else if (verb > 0)
fprintf(f, "\t\t\t\t%u:%p%s\n",
db->start + idx, db->objs[idx], st);
}
static void
drb_dump(FILE *f, int32_t verb, const struct tle_dring *dr,
const struct tle_drb *db)
{
uint32_t i;
fprintf(f, "\t\t@%p%s={\n", db, str_drb_dummy(dr, db));
fprintf(f, "\t\t\tnext=%p,\n", db->next);
fprintf(f, "\t\t\tsize=%u,\n", db->size);
fprintf(f, "\t\t\tstart=%u,\n", db->start);
fprintf(f, "\t\t\tobjs[]={\n");
for (i = 0; i != db->size; i++)
drb_obj_dump(f, verb, dr, db, i);
fprintf(f, "\t\t\t},\n");
fprintf(f, "\t\t},\n");
}
void
tle_dring_dump(FILE *f, int32_t verb, const struct tle_dring *dr)
{
struct tle_drb *db;
fprintf(f, "tle_dring@%p={\n", dr);
fprintf(f, "\tflags=%#x,\n", dr->flags);
fprintf(f, "\tprod={,\n");
fprintf(f, "\t\thead=%u,\n", dr->prod.head);
fprintf(f, "\t\ttail=%u,\n", dr->prod.tail);
fprintf(f, "\t\tcrb=%p%s,\n", dr->prod.crb,
str_drb_dummy(dr, dr->prod.crb));
fprintf(f, "\t},\n");
fprintf(f, "\tcons={,\n");
fprintf(f, "\t\thead=%u,\n", dr->cons.head);
fprintf(f, "\t\ttail=%u,\n", dr->cons.tail);
fprintf(f, "\t\tcrb=%p%s,\n", dr->cons.crb,
str_drb_dummy(dr, dr->cons.crb));
fprintf(f, "\t},\n");
fprintf(f, "\tdrbs[] = {\n");
for (db = dr->prod.crb; db != NULL; db = db->next)
drb_dump(f, verb, dr, db);
fprintf(f, "\t},\n");
fprintf(f, "};\n");
}
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