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#include "collect.h"
#include "main.h"
#include "sql.h"
#include <zstd.h>
static void do_gc(sqlite3 *db, State *s) {
uint32_t cur_size = s->header->raw_size;
pthread_mutex_lock(&s->global->storage_consumed_lock);
uint32_t remain_size =
s->global->storage_budget - s->global->storage_consumed - cur_size;
uint32_t gc_size = -remain_size + cur_size * g_gc_rate;
if (gc_size >= s->global->storage_consumed)
gc_size = s->global->storage_consumed;
pthread_mutex_unlock(&s->global->storage_consumed_lock);
if (remain_size <= 0)
db_delete_oldest_bytes(db, gc_size);
}
static int commit_lz4(State *s, void **buf) {
/* TODO */
(void)s;
(void)buf;
return -1;
}
static int commit_zstd(State *s, void **buf) {
size_t const bufsize = ZSTD_compressBound(s->header->raw_size);
if (!(*buf = malloc(bufsize)))
ERROR("zstd: cannot malloc");
size_t const csize =
ZSTD_compress(*buf, bufsize, s->store, s->header->raw_size, 0);
if (ZSTD_isError(csize)) {
ERROR("zstd: %s \n", ZSTD_getErrorName(csize));
free(*buf);
return -1;
}
s->header->raw_size = csize;
return 0;
}
void *commit(void *targs) {
sqlite3 *db = NULL;
State *s = (State *)targs;
uint32_t size = s->header->raw_size;
DEBUG("Committing #%d packets", s->header->nr_entries);
db_open(&db, s->global->storage_file);
db_create_table(db);
void *buf = NULL;
switch (s->global->compression_type) {
case COMPRESS_NONE:
break;
case COMPRESS_LZ4:
commit_lz4(s, &buf);
break;
case COMPRESS_ZSTD:
commit_zstd(s, &buf);
break;
default:
FATAL("Unknown compression option detected");
}
do_gc(db, s);
db_insert(db, s->header, buf ? buf : s->store);
db_close(db);
DEBUG("Committed #%d packets, compressed size: %u/%u",
s->header->nr_entries, s->header->raw_size, size);
if (buf)
free(buf);
state_free(s);
return NULL;
}
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