mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-09 00:00:00 +01:00
81 lines
1.8 KiB
C++
81 lines
1.8 KiB
C++
/* Bare text values.
|
|
*
|
|
* Author: Steffen Vogel <post@steffenvogel.de>
|
|
* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <villas/formats/value.hpp>
|
|
#include <villas/sample.hpp>
|
|
#include <villas/signal.hpp>
|
|
|
|
using namespace villas::node;
|
|
|
|
int ValueFormat::sprint(char *buf, size_t len, size_t *wbytes,
|
|
const struct Sample *const smps[], unsigned cnt) {
|
|
unsigned i;
|
|
size_t off = 0;
|
|
const struct Sample *smp = smps[0];
|
|
|
|
assert(cnt == 1);
|
|
assert(smp->length <= 1);
|
|
|
|
buf[0] = '\0';
|
|
|
|
for (i = 0; i < smp->length; i++) {
|
|
auto sig = smp->signals->getByIndex(i);
|
|
if (!sig)
|
|
return -1;
|
|
|
|
off += smp->data[i].printString(sig->type, buf, len, real_precision);
|
|
off += snprintf(buf + off, len - off, "\n");
|
|
}
|
|
|
|
if (wbytes)
|
|
*wbytes = off;
|
|
|
|
return i;
|
|
}
|
|
|
|
int ValueFormat::sscan(const char *buf, size_t len, size_t *rbytes,
|
|
struct Sample *const smps[], unsigned cnt) {
|
|
unsigned i = 0, ret;
|
|
struct Sample *smp = smps[0];
|
|
|
|
const char *ptr = buf;
|
|
char *end;
|
|
|
|
assert(cnt == 1);
|
|
|
|
printf("Reading: %s", buf);
|
|
|
|
if (smp->capacity >= 1) {
|
|
auto sig = signals->getByIndex(i);
|
|
if (!sig)
|
|
return -1;
|
|
|
|
ret = smp->data[i].parseString(sig->type, ptr, &end);
|
|
if (ret || end == ptr) // There are no valid values anymore.
|
|
goto out;
|
|
|
|
i++;
|
|
ptr = end;
|
|
}
|
|
|
|
out:
|
|
smp->flags = 0;
|
|
smp->signals = signals;
|
|
smp->length = i;
|
|
if (smp->length > 0)
|
|
smp->flags |= (int)SampleFlags::HAS_DATA;
|
|
|
|
if (rbytes)
|
|
*rbytes = ptr - buf;
|
|
|
|
return i;
|
|
}
|
|
|
|
// Register format
|
|
static char n[] = "value";
|
|
static char d[] = "A bare text value without any headers";
|
|
static FormatPlugin<ValueFormat, n, d, (int)SampleFlags::HAS_DATA> p;
|