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c8c533e791
This changes default behavior when creating a sample struct in C++ code: it is now initialized to default values. If this ever turns out to be a performance problem, we can either add additional constructors or use special functions that do not initialize memory, such as make_unique_for_overwrite. This removes non-standard (respectively >C++20) constructs, namely designated initializers. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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#include "sample.h"
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sample::sample() :
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time({ 0 }),
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stoptime({ 0 }),
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ndl({ -1 }),
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tts({ 0 }),
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rbt({ 0 }),
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depth({ 0 }),
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stopdepth({ 0 }),
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temperature({ 0 }),
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pressure { { 0 }, { 0 } },
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setpoint({ 0 }),
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o2sensor { { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 } },
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bearing({ -1 }),
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sensor { 0, 0 },
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cns(0),
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heartbeat(0),
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sac({ 0 }),
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in_deco(false),
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manually_entered(false)
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{
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}
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/*
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* Adding a cylinder pressure sample field is not quite as trivial as it
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* perhaps should be.
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*
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* We try to keep the same sensor index for the same sensor, so that even
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* if the dive computer doesn't give pressure information for every sample,
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* we don't move pressure information around between the different sensor
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* indices.
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*
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* The "prepare_sample()" function will always copy the sensor indices
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* from the previous sample, so the indices are pre-populated (but the
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* pressures obviously are not)
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*/
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extern "C" void add_sample_pressure(struct sample *sample, int sensor, int mbar)
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{
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int idx;
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if (!mbar)
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return;
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/* Do we already have a slot for this sensor */
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for (idx = 0; idx < MAX_SENSORS; idx++) {
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if (sensor != sample->sensor[idx])
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continue;
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sample->pressure[idx].mbar = mbar;
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return;
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}
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/* Pick the first unused index if we couldn't reuse one */
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for (idx = 0; idx < MAX_SENSORS; idx++) {
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if (sample->pressure[idx].mbar)
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continue;
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sample->sensor[idx] = sensor;
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sample->pressure[idx].mbar = mbar;
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return;
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}
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/* We do not have enough slots for the pressure samples. */
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/* Should we warn the user about dropping pressure data? */
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}
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