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https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-09 00:00:00 +01:00
json: rewrite IO format for RESERVE project
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parent
a623eec35f
commit
5401348b71
3 changed files with 101 additions and 54 deletions
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@ -79,6 +79,7 @@ struct sample {
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int flags; /**< Flags are used to store binary properties of a sample. */
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struct node *source; /**< The node from which this sample originates. */
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struct node *destination; /**< The node to which this sample will be sent. */
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atomic_int refcnt; /**< Reference counter. */
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ptrdiff_t pool_off; /**< This sample belongs to this memory pool (relative pointer). See sample_pool(). */
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@ -20,7 +20,7 @@
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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###################################################################################
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LIB_FORMATS += json json-reserve villas_binary villas_human csv raw
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LIB_FORMATS += json json_reserve villas_binary villas_human csv raw
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LIB_SRCS += lib/io/msg.c
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# Enable Google Protobuf IO format
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@ -22,93 +22,138 @@
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#include <villas/plugin.h>
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#include <villas/sample.h>
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#include <villas/node.h>
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#include <villas/signal.h>
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#include <villas/compat.h>
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#include <villas/timing.h>
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#include <villas/io/json.h>
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int json_reserve_pack_sample(json_t **j, struct sample *smp, int flags)
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{
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json_t *json_smp;
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json_error_t err;
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json_t *json_data, *json_name, *json_unit, *json_value;
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json_t *json_created = NULL, *json_sequence = NULL;
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struct signal *sig;
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json_smp = json_pack_ex(&err, 0, "{ s: { s: [ I, I ], s: [ I, I ], s: [ I, I ] } }",
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"ts",
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"origin", smp->ts.origin.tv_sec, smp->ts.origin.tv_nsec,
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"received", smp->ts.received.tv_sec, smp->ts.received.tv_nsec,
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"sent", smp->ts.sent.tv_sec, smp->ts.sent.tv_nsec);
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if (smp->flags & SAMPLE_HAS_ORIGIN)
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json_created = json_real(time_to_double(&smp->ts.origin));
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if (flags & SAMPLE_HAS_SEQUENCE) {
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json_t *json_sequence = json_integer(smp->sequence);
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if (smp->flags & SAMPLE_HAS_SEQUENCE)
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json_sequence = json_integer(smp->sequence);
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json_object_set(json_smp, "sequence", json_sequence);
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}
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json_data = json_array();
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if (flags & SAMPLE_HAS_VALUES) {
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json_t *json_data = json_array();
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for (int i = 0; i < smp->length; i++) {
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if (smp->destination)
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sig = (struct signal *) list_at(&smp->destination->signals, i);
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else
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sig = NULL;
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for (int i = 0; i < smp->length; i++) {
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json_t *json_value = sample_get_data_format(smp, i)
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? json_integer(smp->data[i].i)
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: json_real(smp->data[i].f);
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if (sig) {
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json_name = json_string(sig->name);
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json_unit = json_string(sig->unit);
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}
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else {
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char name[32];
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snprintf(name, 32, "signal_%d", i);
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json_array_append(json_data, json_value);
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json_name = json_string(name);
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json_unit = NULL;
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}
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json_object_set(json_smp, "data", json_data);
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json_value = json_pack_ex(&err, 0, "{ s: o, s: o*, s: f, s: o*, s: o* }",
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"name", json_name,
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"unit", json_unit,
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"value", smp->data[i].f,
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"created", json_created,
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"sequence", json_sequence
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);
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if (!json_value)
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continue;
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json_array_append(json_data, json_value);
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}
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*j = json_smp;
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char *origin, *target;
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origin = smp->source
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? smp->source->name
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: NULL;
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target = smp->destination
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? smp->destination->name
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: NULL;
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*j = json_pack_ex(&err, 0, "{ s: s*, s: s*, s: o }",
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"origin", origin,
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"target", target,
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"measurements", json_data
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);
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if (*j == NULL)
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return -1;
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return 0;
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}
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int json_reserve_unpack_sample(json_t *json_smp, struct sample *smp, int flags)
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{
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int ret;
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json_t *json_data, *json_value;
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int ret, idx;
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double created = -1;
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json_error_t err;
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json_t *json_value, *json_data = NULL;
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size_t i;
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ret = json_unpack(json_smp, "{ s: { s: [ I, I ], s: [ I, I ], s: [ I, I ] }, s: I, s: o }",
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"ts",
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"origin", &smp->ts.origin.tv_sec, &smp->ts.origin.tv_nsec,
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"received", &smp->ts.received.tv_sec, &smp->ts.received.tv_nsec,
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"sent", &smp->ts.sent.tv_sec, &smp->ts.sent.tv_nsec,
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"sequence", &smp->sequence,
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"data", &json_data);
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const char *origin;
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const char *target;
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ret = json_unpack_ex(json_smp, &err, 0, "{ s?: s, s?: s, s?: o, s?: o }",
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"origin", &origin,
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"target", &target,
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"measurements", &json_data,
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"setpoints", &json_data
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);
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if (ret)
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return ret;
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if (!json_is_array(json_data))
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return -1;
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smp->flags = SAMPLE_HAS_ORIGIN | SAMPLE_HAS_RECEIVED | SAMPLE_HAS_SEQUENCE;
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if (!json_data || !json_is_array(json_data))
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return -1;
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smp->flags = 0;
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smp->length = 0;
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json_array_foreach(json_data, i, json_value) {
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if (i >= smp->capacity)
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break;
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const char *name, *unit = NULL;
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double value;
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switch (json_typeof(json_value)) {
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case JSON_REAL:
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smp->data[i].f = json_real_value(json_value);
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sample_set_data_format(smp, i, SAMPLE_DATA_FORMAT_FLOAT);
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break;
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ret = json_unpack_ex(json_value, &err, 0, "{ s: s, s?: s, s: f, s?: f }",
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"name", &name,
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"unit", &unit,
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"value", &value,
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"created", &created
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);
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if (ret)
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return -1;
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case JSON_INTEGER:
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smp->data[i].f = json_integer_value(json_value);
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sample_set_data_format(smp, i, SAMPLE_DATA_FORMAT_INT);
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break;
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idx = signal_get_offset(name, smp->source);
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if (idx < 0)
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return -1;
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default:
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return -2;
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}
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if (idx >= smp->capacity)
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continue;
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smp->length++;
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if (idx >= smp->length)
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smp->length = idx;
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smp->data[idx].f = value;
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}
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if (smp->length > 0)
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smp->flags |= SAMPLE_HAS_VALUES;
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if (created > 0) {
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smp->ts.origin = time_from_double(created);
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smp->flags |= SAMPLE_HAS_ORIGIN;
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}
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return 0;
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}
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@ -124,7 +169,7 @@ int json_reserve_sprint(char *buf, size_t len, size_t *wbytes, struct sample *sm
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assert(cnt == 1);
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ret = json_pack_sample(&json, smps[0], flags);
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ret = json_reserve_pack_sample(&json, smps[0], flags);
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if (ret < 0)
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return ret;
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@ -150,12 +195,13 @@ int json_reserve_sscan(char *buf, size_t len, size_t *rbytes, struct sample *smp
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if (!json)
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return -1;
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ret = json_unpack_sample(json, smps[0], flags);
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if (ret < 0)
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return ret;
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ret = json_reserve_unpack_sample(json, smps[0], flags);
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json_decref(json);
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if (ret < 0)
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return ret;
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if (rbytes)
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*rbytes = err.position;
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@ -168,7 +214,7 @@ int json_reserve_fprint(FILE *f, struct sample *smps[], unsigned cnt, int flags)
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json_t *json;
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for (i = 0; i < cnt; i++) {
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ret = json_pack_sample(&json, smps[i], flags);
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ret = json_reserve_pack_sample(&json, smps[i], flags);
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if (ret)
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return ret;
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@ -192,7 +238,7 @@ skip: json = json_loadf(f, JSON_DISABLE_EOF_CHECK, &err);
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if (!json)
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break;
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ret = json_unpack_sample(json, smps[i], flags);
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ret = json_reserve_unpack_sample(json, smps[i], flags);
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if (ret)
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goto skip;
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