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Implement bailout outside of the dive planner

Browse source 
This is the second step for implementing bailout. The indirect
calls to fill_pressures through add_segment() (in deco.c) are
addressed. Bailout is now fully implemented in the dive log but
not in the dive planner.
1) The parameters to add_segment() are changed to take a
   divemode as the second last parameter, and not a *dive.
2) Call to add_segment() in profile.c and in divelist.c are
   adapted. In divelist.c some calls to add_segment were left
   using dc-> divemode instead of possible bailout. This appears
   tp be the most appropriate route.
3) The functions get_divemode_from_time() and get_next_divemodechange()
   in dive.c have had some small changes.
4) The calls to get_segment(0 in planner.c were changed to reflect
   the new parameter list, but not updated to reflect bailout. This
   is the next step.

Signed-off-by: Willem Ferguson <willemferguson@zoology.up.ac.za>
This commit is contained in:
Willem Ferguson 2018-04-03 19:30:27 +02:00 • committed by Lubomir I. Ivanov
parent cf377beb2e
commit 27a0542220
6 changed files with 58 additions and 38 deletions
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4
core/deco.c
View file

@ -478,14 +478,14 @@ void calc_crushing_pressure(struct deco_state *ds, double pressure)
}
/* add period_in_seconds at the given pressure and gas to the deco calculation */
void add_segment(struct deco_state *ds, double pressure, const struct gasmix *gasmix, int period_in_seconds, int ccpo2, const struct dive *dive, int sac)
void add_segment(struct deco_state *ds, double pressure, const struct gasmix *gasmix, int period_in_seconds, int ccpo2, enum dive_comp_type divemode, int sac)
{
(void) sac;
int ci;
struct gas_pressures pressures;
bool icd = false;
fill_pressures(&pressures, pressure - ((in_planner() && (decoMode() == VPMB)) ? WV_PRESSURE_SCHREINER : WV_PRESSURE),
gasmix, (double) ccpo2 / 1000.0, dive->dc.divemode);
gasmix, (double) ccpo2 / 1000.0, divemode);
for (ci = 0; ci < 16; ci++) {
double pn2_oversat = pressures.n2 - ds->tissue_n2_sat[ci];

43
core/dive.c
View file

@ -244,7 +244,7 @@ void add_extra_data(struct divecomputer *dc, const char *key, const char *value)
struct event *get_next_divemodechange(struct event **evd)
{ /* Starting at the event pointed to by evd, find the next divemode change event and initialise its
* type and divemode. Requires an external pointer (evd) to a divemode change event, usually
* initialised to dc->events. This function is self-tracking and the value of evd needs no
* a copy of dc->events. This function is self-tracking and the value of evd needs no
* setting or manipulation outside of this function. */
struct event *ev = *evd;
while (ev) { // Step through the events.
@ -277,27 +277,40 @@ struct event *peek_next_divemodechange(struct event *evd)
return (NULL);
}
/*
enum dive_comp_type get_divemode_at_time(struct divecomputer *dc, int divetime, struct event **ev_dmc)
{ // The dummy version of this function, call parameters compatible with self-tracking version.
return dc->divemode;
}
enum dive_comp_type get_divemode_at_time(struct divecomputer *dc, int divetime, struct event **ev_dmc)
{ // The non-self-tracking version of this function, call parameters compatible with self-tracking version.
struct event *ev, *ev_ndc = dc->events;
enum dive_comp_type mode = dc->divemode;
ev = get_next_divemodechange(&ev_ndc);
while (ev && (divetime >= ev->time.seconds)) {
mode = ev->divemode;
ev = get_next_divemodechange(&ev_ndc);
}
return mode;
} */
enum dive_comp_type get_divemode_at_time(struct divecomputer *dc, int dtime, struct event **ev_dmc)
{ /* For a particular dive computer and its linked list of events, find the divemode dtime seconds
* into the dive. Requires an external pointer (ev_dmc) to a divemode change event, usually
* initialised by a call to get_next_divemodechange(dc->events). This function is self-tracking
* and the value of ev_dmc needs no setting or manipulation outside of this function. */
enum dive_comp_type mode;
struct event *ev = *ev_dmc; // ev_dmc points to event initialised by get_next_divemodechange()
if (!ev)
mode = dc->divemode; // if there is no divemodechange event, default to dc->divemode
else {
mode = ev->divemode; // If there is a starting divemodechange event, use the divemode of that event.
while (ev && (dtime >= ev->time.seconds)) { // If dtime is AFTER this event time, store divemode
mode = ev->divemode;
*ev_dmc = ev;
ev = peek_next_divemodechange(ev->next); // peek at the time of the following divemode change event
}
* initialised by a call to get_next_divemodechange(&copy-of-dc->events). This function is self-tracking
* and the value of ev_dmc needs no manipulation outside of this function. */
enum dive_comp_type mode = dc->divemode;
struct event *ev_last = *ev_dmc, *ev = *ev_dmc; // ev_dmc points to event initialised by get_next_divemodechange()
while (ev && (dtime >= ev->time.seconds)) { // If dtime is AFTER this event time, store divemode
mode = ev->divemode;
ev_last = ev;
ev = peek_next_divemodechange(ev->next); // peek at the time of the following divemode change event
}
*ev_dmc = ev_last;
return (mode);
}
/* this returns a pointer to static variable - so use it right away after calling */
struct gasmix *get_gasmix_from_event(struct dive *dive, struct event *ev)
{

4
core/dive.h
View file

@ -83,6 +83,7 @@ struct event {
/* This is the annoying libdivecomputer format. */
int flags, value;
/* .. and this is our "extended" data for some event types */
enum dive_comp_type divemode;
union {
/*
* Currently only for gas switch events.
@ -91,7 +92,6 @@ struct event {
* case, the get_cylinder_index() function will give the best
* match with the cylinders in the dive based on gasmix.
*/
enum dive_comp_type divemode;
struct {
int index;
struct gasmix mix;
@ -854,7 +854,7 @@ struct deco_state {
bool icd_warning;
};
extern void add_segment(struct deco_state *ds, double pressure, const struct gasmix *gasmix, int period_in_seconds, int setpoint, const struct dive *dive, int sac);
extern void add_segment(struct deco_state *ds, double pressure, const struct gasmix *gasmix, int period_in_seconds, int setpoint, enum dive_comp_type divemode, int sac);
extern void clear_deco(struct deco_state *ds, double surface_pressure);
extern void dump_tissues(struct deco_state *ds);
extern void set_gf(short gflow, short gfhigh);

8
core/divelist.c
View file

@ -415,6 +415,7 @@ static void add_dive_to_deco(struct deco_state *ds, struct dive *dive)
struct divecomputer *dc = &dive->dc;
struct gasmix *gasmix = NULL;
struct event *ev = NULL;
struct event *ev_dmc = dc->events, *ev_dmt = get_next_divemodechange(&ev_dmc);
int i;
if (!dc)
@ -430,7 +431,8 @@ static void add_dive_to_deco(struct deco_state *ds, struct dive *dive)
for (j = t0; j < t1; j++) {
int depth = interpolate(psample->depth.mm, sample->depth.mm, j - t0, t1 - t0);
gasmix = get_gasmix(dive, dc, j, &ev, gasmix);
add_segment(ds, depth_to_bar(depth, dive), gasmix, 1, sample->setpoint.mbar, dive, dive->sac);
add_segment(ds, depth_to_bar(depth, dive), gasmix, 1, sample->setpoint.mbar,
get_divemode_at_time(dc, j, &ev_dmt), dive->sac);
}
}
}
@ -584,7 +586,7 @@ int init_decompression(struct deco_state *ds, struct dive *dive)
#endif
return surface_time;
}
add_segment(ds, surface_pressure, &air, surface_time, 0, dive, prefs.decosac);
add_segment(ds, surface_pressure, &air, surface_time, 0, dive->dc.divemode, prefs.decosac);
#if DECO_CALC_DEBUG & 2
printf("Tissues after surface intervall of %d:%02u:\n", FRACTION(surface_time, 60));
dump_tissues(ds);
@ -622,7 +624,7 @@ int init_decompression(struct deco_state *ds, struct dive *dive)
#endif
return surface_time;
}
add_segment(ds, surface_pressure, &air, surface_time, 0, dive, prefs.decosac);
add_segment(ds, surface_pressure, &air, surface_time, 0, dive->dc.divemode, prefs.decosac);
#if DECO_CALC_DEBUG & 2
printf("Tissues after surface intervall of %d:%02u:\n", FRACTION(surface_time, 60));
dump_tissues(ds);

16
core/planner.c
View file

@ -121,7 +121,7 @@ void interpolate_transition(struct deco_state *ds, struct dive *dive, duration_t
for (j = t0.seconds; j < t1.seconds; j++) {
int depth = interpolate(d0.mm, d1.mm, j - t0.seconds, t1.seconds - t0.seconds);
add_segment(ds, depth_to_bar(depth, dive), gasmix, 1, po2.mbar, dive, prefs.bottomsac);
add_segment(ds, depth_to_bar(depth, dive), gasmix, 1, po2.mbar, dive->dc.divemode, prefs.bottomsac);
}
if (d1.mm > d0.mm)
calc_crushing_pressure(ds, depth_to_bar(d1.mm, &displayed_dive));
@ -573,7 +573,7 @@ bool trial_ascent(struct deco_state *ds, int wait_time, int trial_depth, int sto
if (wait_time)
add_segment(ds, depth_to_bar(trial_depth, dive),
gasmix,
wait_time, po2, dive, prefs.decosac);
wait_time, po2, dive->dc.divemode, prefs.decosac);
if (decoMode() == VPMB && (deco_allowed_depth(tissue_tolerance_calc(ds, dive,depth_to_bar(stoplevel, dive)),
surface_pressure, dive, 1)
> stoplevel)) {
@ -588,7 +588,7 @@ bool trial_ascent(struct deco_state *ds, int wait_time, int trial_depth, int sto
deltad = trial_depth;
add_segment(ds, depth_to_bar(trial_depth, dive),
gasmix,
TIMESTEP, po2, dive, prefs.decosac);
TIMESTEP, po2, dive->dc.divemode, prefs.decosac);
if (deco_allowed_depth(tissue_tolerance_calc(ds, dive, depth_to_bar(trial_depth, dive)),
surface_pressure, dive, 1) > trial_depth - deltad) {
/* We should have stopped */
@ -781,7 +781,7 @@ bool plan(struct deco_state *ds, struct diveplan *diveplan, struct dive *dive, i
do {
add_segment(ds, depth_to_bar(depth, dive),
&dive->cylinder[current_cylinder].gasmix,
timestep, po2, dive, prefs.bottomsac);
timestep, po2, dive->dc.divemode, prefs.bottomsac);
update_cylinder_pressure(dive, depth, depth, timestep, prefs.bottomsac, &dive->cylinder[current_cylinder], false);
clock += timestep;
} while (trial_ascent(ds, 0, depth, 0, avg_depth, bottom_time, &dive->cylinder[current_cylinder].gasmix,
@ -901,7 +901,7 @@ bool plan(struct deco_state *ds, struct diveplan *diveplan, struct dive *dive, i
add_segment(ds, depth_to_bar(depth, dive),
&dive->cylinder[current_cylinder].gasmix,
TIMESTEP, po2, dive, prefs.decosac);
TIMESTEP, po2, dive->dc.divemode, prefs.decosac);
last_segment_min_switch = false;
clock += TIMESTEP;
depth -= deltad;
@ -940,7 +940,7 @@ bool plan(struct deco_state *ds, struct diveplan *diveplan, struct dive *dive, i
if (!last_segment_min_switch && get_o2(&dive->cylinder[current_cylinder].gasmix) != 1000) {
add_segment(ds, depth_to_bar(depth, dive),
&dive->cylinder[current_cylinder].gasmix,
prefs.min_switch_duration, po2, dive, prefs.decosac);
prefs.min_switch_duration, po2, dive->dc.divemode, prefs.decosac);
clock += prefs.min_switch_duration;
last_segment_min_switch = true;
}
@ -994,7 +994,7 @@ bool plan(struct deco_state *ds, struct diveplan *diveplan, struct dive *dive, i
if (!last_segment_min_switch && get_o2(&dive->cylinder[current_cylinder].gasmix) != 1000) {
add_segment(ds, depth_to_bar(depth, dive),
&dive->cylinder[current_cylinder].gasmix,
prefs.min_switch_duration, po2, dive, prefs.decosac);
prefs.min_switch_duration, po2, dive->dc.divemode, prefs.decosac);
clock += prefs.min_switch_duration;
last_segment_min_switch = true;
}
@ -1049,7 +1049,7 @@ bool plan(struct deco_state *ds, struct diveplan *diveplan, struct dive *dive, i
}
}
add_segment(ds, depth_to_bar(depth, dive), &dive->cylinder[stop_cylinder].gasmix,
laststoptime, po2, dive, prefs.decosac);
laststoptime, po2, dive->dc.divemode, prefs.decosac);
last_segment_min_switch = false;
decostoptable[decostopcounter].depth = depth;
decostoptable[decostopcounter].time = laststoptime;

21
core/profile.c
View file

@ -907,7 +907,7 @@ static void setup_gas_sensor_pressure(struct dive *dive, struct divecomputer *dc
#ifndef SUBSURFACE_MOBILE
/* calculate DECO STOP / TTS / NDL */
static void calculate_ndl_tts(struct deco_state *ds, struct dive *dive, struct plot_data *entry, struct gasmix *gasmix, double surface_pressure)
static void calculate_ndl_tts(struct deco_state *ds, struct dive *dive, struct plot_data *entry, struct gasmix *gasmix, double surface_pressure,enum dive_comp_type divemode)
{
/* FIXME: This should be configurable */
/* ascent speed up to first deco stop */
@ -942,7 +942,7 @@ static void calculate_ndl_tts(struct deco_state *ds, struct dive *dive, struct p
) {
entry->ndl_calc += time_stepsize;
add_segment(ds, depth_to_bar(entry->depth, dive),
gasmix, time_stepsize, entry->o2pressure.mbar, dive, prefs.bottomsac);
gasmix, time_stepsize, entry->o2pressure.mbar, divemode, prefs.bottomsac);
}
/* we don't need to calculate anything else */
return;
@ -954,7 +954,7 @@ static void calculate_ndl_tts(struct deco_state *ds, struct dive *dive, struct p
/* Add segments for movement to stopdepth */
for (; ascent_depth > next_stop; ascent_depth -= ascent_mm_per_step, entry->tts_calc += ascent_s_per_step) {
add_segment(ds, depth_to_bar(ascent_depth, dive),
gasmix, ascent_s_per_step, entry->o2pressure.mbar, dive, prefs.decosac);
gasmix, ascent_s_per_step, entry->o2pressure.mbar, divemode, prefs.decosac);
next_stop = ROUND_UP(deco_allowed_depth(tissue_tolerance_calc(ds, dive, depth_to_bar(ascent_depth, dive)),
surface_pressure, dive, 1), deco_stepsize);
}
@ -975,13 +975,13 @@ static void calculate_ndl_tts(struct deco_state *ds, struct dive *dive, struct p
if (entry->tts_calc > MAX_PROFILE_DECO)
break;
add_segment(ds, depth_to_bar(ascent_depth, dive),
gasmix, time_stepsize, entry->o2pressure.mbar, dive, prefs.decosac);
gasmix, time_stepsize, entry->o2pressure.mbar, divemode, prefs.decosac);
if (deco_allowed_depth(tissue_tolerance_calc(ds, dive, depth_to_bar(ascent_depth,dive)), surface_pressure, dive, 1) <= next_stop) {
/* move to the next stop and add the travel between stops */
for (; ascent_depth > next_stop; ascent_depth -= ascent_mm_per_deco_step, entry->tts_calc += ascent_s_per_deco_step)
add_segment(ds, depth_to_bar(ascent_depth, dive),
gasmix, ascent_s_per_deco_step, entry->o2pressure.mbar, dive, prefs.decosac);
gasmix, ascent_s_per_deco_step, entry->o2pressure.mbar, divemode, prefs.decosac);
ascent_depth = next_stop;
next_stop -= deco_stepsize;
}
@ -996,6 +996,8 @@ void calculate_deco_information(struct deco_state *ds, struct deco_state *planne
double surface_pressure = (dc->surface_pressure.mbar ? dc->surface_pressure.mbar : get_surface_pressure_in_mbar(dive, true)) / 1000.0;
bool first_iteration = true;
int prev_deco_time = 10000000, time_deep_ceiling = 0;
enum dive_comp_type current_divemode;
if (!in_planner()) {
ds->deco_time = 0;
} else {
@ -1010,18 +1012,20 @@ void calculate_deco_information(struct deco_state *ds, struct deco_state *planne
}
/* For VPM-B outside the planner, iterate until deco time converges (usually one or two iterations after the initial)
* Set maximum number of iterations to 10 just in case */
while ((abs(prev_deco_time - ds->deco_time) >= 30) && (count_iteration < 10)) {
int last_ndl_tts_calc_time = 0, first_ceiling = 0, current_ceiling, last_ceiling = 0, final_tts = 0 , time_clear_ceiling = 0;
if (decoMode() == VPMB)
ds->first_ceiling_pressure.mbar = depth_to_mbar(first_ceiling, dive);
struct gasmix *gasmix = NULL;
struct event *ev = NULL;
struct event *ev = NULL, *ev_dmc = dc->events, *ev_dmt = get_next_divemodechange(&ev_dmc);
for (i = 1; i < pi->nr; i++) {
struct plot_data *entry = pi->entry + i;
int j, t0 = (entry - 1)->sec, t1 = entry->sec;
int time_stepsize = 20;
current_divemode = get_divemode_at_time(dc, entry->sec, &ev_dmt);
gasmix = get_gasmix(dive, dc, t1, &ev, gasmix);
entry->ambpressure = depth_to_bar(entry->depth, dive);
@ -1037,7 +1041,7 @@ void calculate_deco_information(struct deco_state *ds, struct deco_state *planne
for (j = t0 + time_stepsize; j <= t1; j += time_stepsize) {
int depth = interpolate(entry[-1].depth, entry[0].depth, j - t0, t1 - t0);
add_segment(ds, depth_to_bar(depth, dive),
gasmix, time_stepsize, entry->o2pressure.mbar, dive, entry->sac);
gasmix, time_stepsize, entry->o2pressure.mbar, current_divemode, entry->sac);
entry->icd_warning = ds->icd_warning;
if ((t1 - j < time_stepsize) && (j < t1))
time_stepsize = t1 - j;
@ -1112,7 +1116,7 @@ void calculate_deco_information(struct deco_state *ds, struct deco_state *planne
/* We are going to mess up deco state, so store it for later restore */
struct deco_state *cache_data = NULL;
cache_deco_state(ds, &cache_data);
calculate_ndl_tts(ds, dive, entry, gasmix, surface_pressure);
calculate_ndl_tts(ds, dive, entry, gasmix, surface_pressure, current_divemode);
if (decoMode() == VPMB && !in_planner() && i == pi->nr - 1)
final_tts = entry->tts_calc;
/* Restore "real" deco state for next real time step */
@ -1146,6 +1150,7 @@ void calculate_deco_information(struct deco_state *ds, struct deco_state *planne
prev_deco_time = ds->deco_time = 0;
}
}
free(cache_data_initial);
#if DECO_CALC_DEBUG & 1
dump_tissues(ds);