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/*
* Copyright (C) 2020 - Vito Caputo - <vcaputo@pengaru.com>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3 as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include <inttypes.h>
#include <stdint.h>
#include <stdio.h>
#include <iou.h>
#include <thunk.h>
#include "bootid.h"
#include "humane.h"
#include "journals.h"
#include "machid.h"
#include "report-usage.h"
#include "upstream/journal-def.h"
typedef struct usage_t {
uint64_t count_per_type[_OBJECT_TYPE_MAX];
uint64_t use_per_type[_OBJECT_TYPE_MAX];
uint64_t use_total;
uint64_t file_size, file_count;
} usage_t;
THUNK_DEFINE_STATIC(per_data_object, ObjectHeader *, iter_object_header, usage_t *, usage, usage_t *, total_usage)
{
assert(iter_object_header);
assert(usage);
assert(total_usage);
usage->count_per_type[iter_object_header->type]++;
usage->use_per_type[iter_object_header->type] += iter_object_header->size;
usage->use_total += iter_object_header->size;
total_usage->count_per_type[iter_object_header->type]++;
total_usage->use_per_type[iter_object_header->type] += iter_object_header->size;
total_usage->use_total += iter_object_header->size;
return 1;
}
THUNK_DEFINE_STATIC(per_journal, iou_t *, iou, journal_t **, journal_iter, usage_t *, total_usage, unsigned *, n_journals)
{
struct {
journal_t *journal;
Header header;
usage_t usage;
uint64_t iter_offset;
ObjectHeader iter_object_header;
} *foo;
thunk_t *closure;
struct stat st;
int r;
assert(iou);
assert(journal_iter);
assert(total_usage);
/* XXX: io_uring has a STATX opcode, so this too could be async */
r = fstat((*journal_iter)->fd, &st);
if (r < 0)
return r;
closure = THUNK_ALLOC(per_data_object, (void **)&foo, sizeof(*foo));
foo->journal = *journal_iter;
foo->usage.file_size = st.st_size;
total_usage->file_size += st.st_size;
(*n_journals)++;
return thunk_mid(journal_get_header(iou, &foo->journal, &foo->header, THUNK(
journal_iter_objects(iou, &foo->journal, &foo->header, &foo->iter_offset, &foo->iter_object_header, THUNK_INIT(
per_data_object(closure, &foo->iter_object_header, &foo->usage, total_usage))))));
}
/* print the amount of space used by various objects per journal, and sum totals */
int jio_report_usage(iou_t *iou, int argc, char *argv[])
{
usage_t aggregate_usage = {};
char *machid;
journals_t *journals;
journal_t *journal_iter;
unsigned n_journals = 0;
humane_t h1, h2;
int r;
r = machid_get(iou, &machid, THUNK(
journals_open(iou, &machid, O_RDONLY, &journals, THUNK(
journals_for_each(&journals, &journal_iter, THUNK(
per_journal(iou, &journal_iter, &aggregate_usage, &n_journals)))))));
if (r < 0)
return r;
r = iou_run(iou);
if (r < 0)
return r;
printf("Per-object-type usage:\n");
for (int i = 0; i < _OBJECT_TYPE_MAX; i++)
printf("%16s: [%"PRIu64"] %s\n",
journal_object_type_str(i),
aggregate_usage.count_per_type[i],
humane_bytes(&h1,
aggregate_usage.use_per_type[i]));
printf("Aggregate object usage: %s of %s spanning %u journal files\n",
humane_bytes(&h1, aggregate_usage.use_total),
humane_bytes(&h2, aggregate_usage.file_size),
n_journals);
return 0;
}
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