OVMS3/OVMS.V3/main/ovms_metrics.cpp

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/*
; Project: Open Vehicle Monitor System
; Date: 14th March 2017
;
; Changes:
; 1.0 Initial release
;
; (C) 2011 Michael Stegen / Stegen Electronics
; (C) 2011-2017 Mark Webb-Johnson
; (C) 2011 Sonny Chen @ EPRO/DX
;
; Permission is hereby granted, free of charge, to any person obtaining a copy
; of this software and associated documentation files (the "Software"), to deal
; in the Software without restriction, including without limitation the rights
; to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
; copies of the Software, and to permit persons to whom the Software is
; furnished to do so, subject to the following conditions:
;
; The above copyright notice and this permission notice shall be included in
; all copies or substantial portions of the Software.
;
; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
; IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
; FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
; AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
; LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
; THE SOFTWARE.
*/
#include "ovms_log.h"
static const char *TAG = "metrics";
#include <stdlib.h>
#include <stdio.h>
#include <sstream>
#include <functional>
#include <map>
#include "ovms.h"
#include "ovms_metrics.h"
#include "ovms_command.h"
#include "ovms_events.h"
#include "ovms_script.h"
#include "rom/rtc.h"
#include "string.h"
using namespace std;
#define PERSISTENT_METRICS_MAGIC (('O' << 24) | ('V' << 16) | ('M' << 8) | '3')
#define PERSISTENT_VERSION 3 // increment when struct is changed
RTC_NOINIT_ATTR persistent_metrics pmetrics; // persistent storage container
#define NUM_PERSISTENT_VALUES sizeof_array(pmetrics.values)
static const char* pmetrics_reason; // reason pmetrics was zeroed
std::map<std::size_t, const char*> pmetrics_keymap // hash key → metric name map (registry)
__attribute__ ((init_priority (1800)));
OvmsMetrics MyMetrics
__attribute__ ((init_priority (1800)));
void metrics_list(int verbosity, OvmsWriter* writer, OvmsCommand* cmd, int argc, const char* const* argv)
{
bool found = false;
bool show_staleness = false;
bool show_set = false;
bool only_persist = false;
bool display_strings = false;
const char* show_only = NULL;
int i;
for (i=0;i<argc;i++)
{
const char *cp = argv[i];
if (*cp != '-')
{
if (show_only != NULL)
{
cmd->PutUsage(writer);
return;
}
show_only = cp;
continue;
}
for (++cp; *cp != '\0'; ++cp)
{
switch (*cp)
{
case 'c':
show_set = true;
break;
case 'p':
only_persist = true;
break;
case 's':
show_staleness = true;
break;
case 't':
display_strings = true;
break;
default:
cmd->PutUsage(writer);
return;
}
}
}
for (OvmsMetric* m=MyMetrics.m_first; m != NULL; m=m->m_next)
{
if (only_persist && !m->m_persist)
continue;
const char *k = m->m_name;
if (show_only != NULL && strstr(k, show_only) == NULL)
continue;
found = true;
if (show_set)
{
if (m->IsDefined())
writer->printf("metrics set %s %s\n", k, m->AsString().c_str());
continue;
}
std::string v = m->AsUnitString("", m->GetUnits() == TimeUTC ? TimeLocal : m->GetUnits());
if (show_staleness)
{
int age = m->Age();
if (age>99)
age=99;
if (v.empty())
writer->printf("[---] ",k);
else
writer->printf("[%02d%c] ", age, (m->IsStale() ? 'S' : '-' ));
}
if (v.empty())
{
writer->printf("%s\n",k);
continue;
}
// Apply (linux) "cat -t" semantics to strings
const char *s;
if (!display_strings || !m->IsString())
s = v.c_str();
else
s = display_encode(v).c_str();
writer->printf("%-40.40s %s\n", k, s);
}
if (show_only && !found)
writer->puts("Unrecognised metric name");
}
void metrics_persist(int verbosity, OvmsWriter* writer, OvmsCommand* cmd, int argc, const char* const* argv)
{
if (argc > 0)
{
if (strcmp(argv[0], "-r") != 0)
{
cmd->PutUsage(writer);
return;
}
pmetrics.magic = 0;
}
if (pmetrics.magic != PERSISTENT_METRICS_MAGIC)
writer->puts("Persistent metrics will be reset on the next boot");
writer->printf("version %d, ", pmetrics.version);
writer->printf("serial %d, ", pmetrics.serial);
if (pmetrics_reason != NULL)
writer->printf("%s caused reset, ", pmetrics_reason);
writer->printf("%d bytes, and ", pmetrics.size);
writer->printf("%d of %d slots used\n", pmetrics.used, NUM_PERSISTENT_VALUES);
}
void metrics_set(int verbosity, OvmsWriter* writer, OvmsCommand* cmd, int argc, const char* const* argv)
{
if (MyMetrics.Set(argv[0],argv[1]))
writer->puts("Metric set");
else
writer->puts("Metric could not be set");
}
bool pmetrics_check()
{
bool ret = true;
if (pmetrics.magic != PERSISTENT_METRICS_MAGIC)
{
ESP_LOGE(TAG, "pmetrics_check: bad magic");
ret = false;
}
if (pmetrics.version != PERSISTENT_VERSION)
{
ESP_LOGE(TAG, "pmetrics_check: bad version");
ret = false;
}
if (pmetrics.size != sizeof(pmetrics))
{
ESP_LOGE(TAG, "pmetrics_check: bad size");
ret = false;
}
if ((pmetrics.used < 0 || pmetrics.used > NUM_PERSISTENT_VALUES))
{
ESP_LOGE(TAG, "pmetrics_check: out of range used");
ret = false;
}
for (OvmsMetric* m = MyMetrics.m_first; m != NULL; m = m->m_next)
{
if (m->m_persist && !m->CheckPersist())
{
ret = false;
break;
}
}
return ret;
}
persistent_values *pmetrics_find(const char *name)
{
int i;
persistent_values *vp;
std::size_t namehash = std::hash<std::string>{}(name);
for (i = 0, vp = pmetrics.values; i < pmetrics.used; ++i, ++vp)
{
if (vp->namehash == namehash)
return vp;
}
return NULL;
}
void pmetrics_init(bool refresh = false)
{
memset(&pmetrics, 0, sizeof(pmetrics));
pmetrics.magic = PERSISTENT_METRICS_MAGIC;
pmetrics.version = PERSISTENT_VERSION;
pmetrics.size = sizeof(persistent_metrics);
if (refresh)
{
for (OvmsMetric* m = MyMetrics.m_first; m != NULL; m = m->m_next)
m->RefreshPersist();
}
}
persistent_values *pmetrics_register(const char *name)
{
int i;
persistent_values *vp;
std::size_t namehash = std::hash<std::string>{}(name);
// check for hash collision:
auto it = pmetrics_keymap.find(namehash);
if (it != pmetrics_keymap.end() && strcmp(it->second, name) != 0)
{
ESP_LOGE(TAG, "pmetrics_register: cannot persist '%s' due to hash collision with '%s'",
name, it->second);
return NULL;
}
// find slot:
for (i = 0, vp = pmetrics.values; i < pmetrics.used; ++i, ++vp)
{
if (vp->namehash == namehash)
break;
}
// not found? assign to next free slot:
if (i >= pmetrics.used)
{
if (i >= NUM_PERSISTENT_VALUES)
{
ESP_LOGE(TAG, "pmetrics_register: no free slots, cannot persist '%s'", name);
return NULL;
}
vp->namehash = namehash;
memset(&vp->value, 0, sizeof(vp->value));
++pmetrics.used;
}
ESP_LOGD(TAG, "pmetrics_register: '%s' => slot=%d, used %d/%d",
name, i, pmetrics.used, NUM_PERSISTENT_VALUES);
pmetrics_keymap[namehash] = name;
return vp;
}
void OvmsMetrics::EventSystemShutDown(std::string event, void* data)
{
/* Check for corruption and repair of possible before shutting down */
if (!pmetrics_check())
{
ESP_LOGI(TAG, "Persistent metrics shutdown check failed");
pmetrics_init(true);
}
}
void metrics_trace(int verbosity, OvmsWriter* writer, OvmsCommand* cmd, int argc, const char* const* argv)
{
if (strcmp(cmd->GetName(),"on")==0)
MyMetrics.m_trace = true;
else
MyMetrics.m_trace = false;
writer->printf("Metric tracing is now %s\n",cmd->GetName());
}
#ifdef CONFIG_OVMS_SC_JAVASCRIPT_DUKTAPE
static duk_ret_t DukOvmsMetricValue(duk_context *ctx)
{
DukContext dc(ctx);
bool decode = duk_opt_boolean(ctx, 1, true);
const char *mn = duk_to_string(ctx,0);
OvmsMetric *m = MyMetrics.Find(mn);
if (m)
{
if (decode)
m->DukPush(dc);
else
dc.Push(m->AsString());
return 1; /* one return value */
}
else
return 0;
}
static duk_ret_t DukOvmsMetricJSON(duk_context *ctx)
{
const char *mn = duk_to_string(ctx,0);
OvmsMetric *m = MyMetrics.Find(mn);
if (m)
{
duk_push_string(ctx, m->AsJSON().c_str());
return 1; /* one return value */
}
else
return 0;
}
static duk_ret_t DukOvmsMetricFloat(duk_context *ctx)
{
const char *mn = duk_to_string(ctx,0);
OvmsMetric *m = MyMetrics.Find(mn);
if (m)
{
duk_push_number(ctx, float2double(m->AsFloat()));
return 1; /* one return value */
}
else
return 0;
}
static duk_ret_t DukOvmsMetricGetValues(duk_context *ctx)
{
OvmsMetric *m;
DukContext dc(ctx);
bool decode = duk_opt_boolean(ctx, 1, true);
duk_idx_t obj_idx = dc.PushObject();
// helper: set object property from metric
auto set_metric = [&dc, obj_idx, decode](OvmsMetric *m)
{
if (decode)
m->DukPush(dc);
else
dc.Push(m->AsString());
dc.PutProp(obj_idx, m->m_name);
};
if (duk_is_array(ctx, 0))
{
// get metric names from array:
for (int i=0; duk_get_prop_index(ctx, 0, i); i++)
{
m = MyMetrics.Find(duk_to_string(ctx, -1));
if (m) set_metric(m);
duk_pop(ctx);
}
duk_pop(ctx);
}
else if (duk_is_object(ctx, 0))
{
// get metric names from object properties:
duk_enum(ctx, 0, 0);
while (duk_next(ctx, -1, true))
{
m = MyMetrics.Find(duk_to_string(ctx, -2));
if (m) set_metric(m);
duk_pop_2(ctx);
}
duk_pop(ctx);
}
else
{
// simple metric name substring filter:
const char *filter = duk_opt_string(ctx, 0, "");
for (m = MyMetrics.m_first; m; m = m->m_next)
{
if (*filter && !strstr(m->m_name, filter))
continue;
set_metric(m);
}
}
return 1;
}
#endif //#ifdef CONFIG_OVMS_SC_JAVASCRIPT_DUKTAPE
MetricCallbackEntry::MetricCallbackEntry(const char* caller, MetricCallback callback)
{
m_caller = caller;
m_callback = callback;
}
MetricCallbackEntry::~MetricCallbackEntry()
{
}
OvmsMetrics::OvmsMetrics()
{
ESP_LOGI(TAG, "Initialising METRICS (1810)");
m_nextmodifier = 1;
m_first = NULL;
m_trace = false;
// Register our commands
OvmsCommand* cmd_metric = MyCommandApp.RegisterCommand("metrics","METRICS framework");
cmd_metric->RegisterCommand("list","Show all metrics", metrics_list,
"[-cpst] [<metric>]\n"
"Display a metric, show all by default\n"
"-c = display persistent metrics set commands\n"
"-p = display only persistent metrics\n"
"-s = show metric staleness\n"
"-t = display non-printing characters and tabs in string metrics", 0, 2);
cmd_metric->RegisterCommand("persist","Show persistent metrics info", metrics_persist, "[-r]\n"
"-r = reset persistent metrics", 0, 1);
cmd_metric->RegisterCommand("set","Set the value of a metric",metrics_set, "<metric> <value>", 2, 2);
OvmsCommand* cmd_metrictrace = cmd_metric->RegisterCommand("trace","METRIC trace framework");
cmd_metrictrace->RegisterCommand("on","Turn metric tracing ON",metrics_trace);
cmd_metrictrace->RegisterCommand("off","Turn metric tracing OFF",metrics_trace);
#ifdef CONFIG_OVMS_SC_JAVASCRIPT_DUKTAPE
ESP_LOGI(TAG, "Expanding DUKTAPE javascript engine");
DuktapeObjectRegistration* dto = new DuktapeObjectRegistration("OvmsMetrics");
dto->RegisterDuktapeFunction(DukOvmsMetricValue, 1, "Value");
dto->RegisterDuktapeFunction(DukOvmsMetricJSON, 1, "AsJSON");
dto->RegisterDuktapeFunction(DukOvmsMetricFloat, 1, "AsFloat");
dto->RegisterDuktapeFunction(DukOvmsMetricGetValues, 2, "GetValues");
MyDuktape.RegisterDuktapeObject(dto);
#endif //#ifdef CONFIG_OVMS_SC_JAVASCRIPT_DUKTAPE
/* Initialize persistent metrics on cold boot or corruption */
if (rtc_get_reset_reason(0) == POWERON_RESET || !pmetrics_check())
pmetrics_init();
ESP_LOGI(TAG, "Persistent metrics serial %u using %d bytes, %d/%d slots used",
++pmetrics.serial, sizeof(pmetrics), pmetrics.used, NUM_PERSISTENT_VALUES);
// Register our event
#undef bind // Kludgy, but works
using std::placeholders::_1;
using std::placeholders::_2;
MyEvents.RegisterEvent(TAG, "system.shutdown",
std::bind(&OvmsMetrics::EventSystemShutDown, this, _1, _2));
}
OvmsMetrics::~OvmsMetrics()
{
for (OvmsMetric* m = m_first; m!=NULL;)
{
OvmsMetric* c = m;
m = m->m_next;
delete c;
}
}
void OvmsMetrics::RegisterMetric(OvmsMetric* metric)
{
// Quick simple check for if we are the first metric.
if (m_first == NULL)
{
m_first = metric;
return;
}
// Now, check if we are before the first
if (strcmp(m_first->m_name,metric->m_name)>=0)
{
metric->m_next = m_first;
m_first = metric;
return;
}
// Search for the correct place to insert
for (OvmsMetric*m = m_first; m!=NULL; m=m->m_next)
{
if (m->m_next == NULL)
{
m->m_next = metric;
return;
}
if (strcmp(m->m_next->m_name,metric->m_name)>=0)
{
metric->m_next = m->m_next;
m->m_next = metric;
return;
}
}
}
void OvmsMetrics::DeregisterMetric(OvmsMetric* metric)
{
if (m_first == metric)
{
m_first = metric->m_next;
delete metric;
return;
}
for (OvmsMetric* m=m_first;m!=NULL;m=m->m_next)
{
if (m->m_next == metric)
{
m->m_next = metric->m_next;
delete metric;
return;
}
}
}
bool OvmsMetrics::Set(const char* metric, const char* value)
{
OvmsMetric* m = Find(metric);
if (m == NULL) return false;
m->SetValue(std::string(value));
return true;
}
bool OvmsMetrics::SetInt(const char* metric, int value)
{
OvmsMetricInt* m = (OvmsMetricInt*)Find(metric);
if (m == NULL) return false;
m->SetValue(value);
return true;
}
bool OvmsMetrics::SetBool(const char* metric, bool value)
{
OvmsMetricBool* m = (OvmsMetricBool*)Find(metric);
if (m == NULL) return false;
m->SetValue(value);
return true;
}
bool OvmsMetrics::SetFloat(const char* metric, float value)
{
OvmsMetricFloat* m = (OvmsMetricFloat*)Find(metric);
if (m == NULL) return false;
m->SetValue(value);
return true;
}
OvmsMetric* OvmsMetrics::Find(const char* metric)
{
for (OvmsMetric* m=m_first; m != NULL; m=m->m_next)
{
if (strcmp(m->m_name,metric)==0) return m;
}
return NULL;
}
OvmsMetricInt* OvmsMetrics::InitInt(const char* metric, uint16_t autostale, int value, metric_unit_t units, bool persist)
{
OvmsMetricInt *m = (OvmsMetricInt*)Find(metric);
if (m==NULL) m = new OvmsMetricInt(metric, autostale, units, persist);
if (!m->IsDefined())
m->SetValue(value);
return m;
}
OvmsMetricBool* OvmsMetrics::InitBool(const char* metric, uint16_t autostale, bool value, metric_unit_t units, bool persist)
{
OvmsMetricBool *m = (OvmsMetricBool*)Find(metric);
if (m==NULL) m = new OvmsMetricBool(metric, autostale, units, persist);
if (!m->IsDefined())
m->SetValue(value);
return m;
}
OvmsMetricFloat* OvmsMetrics::InitFloat(const char* metric, uint16_t autostale, float value, metric_unit_t units, bool persist)
{
OvmsMetricFloat *m = (OvmsMetricFloat*)Find(metric);
if (m==NULL) m = new OvmsMetricFloat(metric, autostale, units, persist);
if (!m->IsDefined())
m->SetValue(value);
return m;
}
OvmsMetricString* OvmsMetrics::InitString(const char* metric, uint16_t autostale, const char* value, metric_unit_t units)
{
OvmsMetricString *m = (OvmsMetricString*)Find(metric);
if (m==NULL) m = new OvmsMetricString(metric, autostale, units);
if (value && !m->IsDefined())
m->SetValue(value);
return m;
}
void OvmsMetrics::RegisterListener(const char* caller, const char* name, MetricCallback callback)
{
auto k = m_listeners.find(name);
if (k == m_listeners.end())
{
m_listeners[name] = new MetricCallbackList();
k = m_listeners.find(name);
}
if (k == m_listeners.end())
{
ESP_LOGE(TAG, "Problem registering metric %s for caller %s",name,caller);
return;
}
MetricCallbackList *ml = k->second;
ml->push_back(new MetricCallbackEntry(caller,callback));
}
void OvmsMetrics::DeregisterListener(const char* caller)
{
MetricCallbackMap::iterator itm=m_listeners.begin();
while (itm!=m_listeners.end())
{
MetricCallbackList* ml = itm->second;
MetricCallbackList::iterator itc=ml->begin();
while (itc!=ml->end())
{
MetricCallbackEntry* ec = *itc;
if (ec->m_caller == caller)
{
itc = ml->erase(itc);
delete ec;
}
else
{
++itc;
}
}
if (ml->empty())
{
itm = m_listeners.erase(itm);
delete ml;
}
else
{
++itm;
}
}
}
void OvmsMetrics::NotifyModified(OvmsMetric* metric)
{
if (m_trace &&
strcmp(metric->m_name, "m.monotonic") != 0 &&
strcmp(metric->m_name, "m.time.utc") != 0 &&
strcmp(metric->m_name, "v.e.parktime") != 0 &&
strcmp(metric->m_name, "v.e.drivetime") != 0 &&
strcmp(metric->m_name, "v.c.time") != 0)
{
ESP_LOGI(TAG, "Modified metric %s: %s",
metric->m_name, metric->AsUnitString().c_str());
}
auto k = m_listeners.find("*");
for (int x=0;x<2;x++)
{
if (k != m_listeners.end())
{
MetricCallbackList* ml = k->second;
if (ml)
{
for (MetricCallbackList::iterator itc=ml->begin(); itc!=ml->end(); ++itc)
{
MetricCallbackEntry* ec = *itc;
ec->m_callback(metric);
}
}
}
k = m_listeners.find(metric->m_name);
}
}
size_t OvmsMetrics::RegisterModifier()
{
return m_nextmodifier++;
}
OvmsMetric::OvmsMetric(const char* name, uint16_t autostale, metric_unit_t units, bool persist)
{
m_defined = NeverDefined;
m_modified = 0;
m_name = name;
m_lastmodified = 0;
m_autostale = autostale;
m_stale = false;
m_units = units;
m_next = NULL;
m_persist = false; // only set by metrics supporting persistence
MyMetrics.RegisterMetric(this);
}
OvmsMetric::~OvmsMetric()
{
MyMetrics.DeregisterMetric(this);
// Warning: pointers to a deleted OvmsMetric can still be held locally in
// other modules. If you delete metrics, take care to inform all readers
// (i.e. by broadcasting a module shutdown event).
}
std::string OvmsMetric::AsString(const char* defvalue, metric_unit_t units, int precision)
{
return std::string(defvalue);
}
std::string OvmsMetric::AsUnitString(const char* defvalue, metric_unit_t units, int precision)
{
if (!IsDefined())
return std::string(defvalue);
return AsString(defvalue, units, precision) + OvmsMetricUnitLabel(units==Native ? GetUnits() : units);
}
std::string OvmsMetric::AsJSON(const char* defvalue, metric_unit_t units, int precision)
{
std::string buf = "\"";
buf.append(json_encode(AsString(defvalue, units, precision)));
buf.append("\"");
return buf;
}
float OvmsMetric::AsFloat(const float defvalue, metric_unit_t units)
{
return defvalue;
}
#ifdef CONFIG_OVMS_SC_JAVASCRIPT_DUKTAPE
void OvmsMetric::DukPush(DukContext &dc)
{
dc.Push(AsString());
}
#endif
bool OvmsMetric::SetValue(std::string value)
{
return false;
}
bool OvmsMetric::SetValue(dbcNumber& value)
{
return false;
}
void OvmsMetric::operator=(std::string value)
{
}
uint32_t OvmsMetric::LastModified()
{
return m_lastmodified;
}
uint32_t OvmsMetric::Age()
{
return monotonictime - m_lastmodified;
}
void OvmsMetric::SetModified(bool changed)
{
if (m_defined == NeverDefined)
m_defined = FirstDefined;
else
m_defined = Defined;
m_stale = false;
m_lastmodified = monotonictime;
if (changed)
{
m_modified = ULONG_MAX;
MyMetrics.NotifyModified(this);
}
}
bool OvmsMetric::IsDefined()
{
return (m_defined != NeverDefined);
}
bool OvmsMetric::IsFirstDefined()
{
return (m_defined == FirstDefined);
}
bool OvmsMetric::IsPersistent()
{
return m_persist;
}
bool OvmsMetric::CheckPersist()
{
return true;
}
void OvmsMetric::RefreshPersist()
{
}
/**
* IsStale: check if metric value has not been set within the staleness period / since marked stale
* Note: a persistent metric won't be stale immediately after a reboot, because
* it's unknown when the value was set before the reboot. If you need to assert
* freshness, use IsFresh().
*/
bool OvmsMetric::IsStale()
{
if (m_autostale > 0)
{
if (m_lastmodified + m_autostale < monotonictime)
m_stale = true;
else
m_stale = false;
}
return m_stale;
}
/**
* IsFresh: check if metric value has been set explicitly within the staleness period / since marked stale
* Note: a persistent metric won't be fresh immediately after a reboot, because
* it's unknown when the value was set before the reboot. It needs to receive a
* live value to become fresh.
*/
bool OvmsMetric::IsFresh()
{
if (m_defined == NeverDefined)
return false;
else if (m_persist && m_defined == FirstDefined)
return false;
else
return !IsStale();
}
void OvmsMetric::SetStale(bool stale)
{
m_stale = stale;
}
void OvmsMetric::SetAutoStale(uint16_t seconds)
{
m_autostale = seconds;
}
metric_unit_t OvmsMetric::GetUnits()
{
return m_units;
}
bool OvmsMetric::IsModified(size_t modifier)
{
return m_modified & 1ul << modifier;
}
bool OvmsMetric::IsModifiedAndClear(size_t modifier)
{
unsigned long bit = 1ul << modifier;
unsigned long mod = m_modified.fetch_and(~bit);
return mod & bit;
}
void OvmsMetric::ClearModified(size_t modifier)
{
m_modified &= ~(1ul << modifier);
}
void OvmsMetric::Clear()
{
SetValue("");
m_defined = NeverDefined;
m_stale = true;
}
OvmsMetricInt::OvmsMetricInt(const char* name, uint16_t autostale, metric_unit_t units, bool persist)
: OvmsMetric(name, autostale, units, persist)
{
m_value = 0;
m_valuep = NULL;
m_persist = persist;
if (m_persist)
{
persistent_values *vp = pmetrics_register(name);
if (!vp)
{
m_persist = false;
}
else
{
m_valuep = reinterpret_cast<int*>(&vp->value);
if (m_value != *m_valuep)
{
m_value = *m_valuep;
SetModified(true);
ESP_LOGI(TAG, "persist %s = %s", name, AsUnitString().c_str());
}
}
}
}
OvmsMetricInt::~OvmsMetricInt()
{
}
bool OvmsMetricInt::CheckPersist()
{
if (!m_persist || !m_valuep || !IsDefined())
return true;
if (*m_valuep != m_value)
{
ESP_LOGE(TAG, "CheckPersist: bad value for %s", m_name);
return false;
}
persistent_values *vp = pmetrics_find(m_name);
if (vp == NULL)
{
ESP_LOGE(TAG, "CheckPersist: can't find %s", m_name);
return false;
}
if (m_valuep != reinterpret_cast<int*>(&vp->value))
{
ESP_LOGE(TAG, "CheckPersist: bad address for %s", m_name);
return false;
}
return true;
}
void OvmsMetricInt::RefreshPersist()
{
if (m_persist && m_valuep && IsDefined())
*m_valuep = m_value;
}
std::string OvmsMetricInt::AsString(const char* defvalue, metric_unit_t units, int precision)
{
if (IsDefined())
{
char buffer[33];
int value = m_value;
if ((units != Other)&&(units != m_units))
value = UnitConvert(m_units,units,m_value);
if (units == TimeUTC || units == TimeLocal)
{
int seconds = value % 60;
value /= 60;
int minutes = value % 60;
value /= 60;
int hours = value;
snprintf(buffer, sizeof(buffer), "%02u:%02u:%02u", hours, minutes, seconds);
}
else
itoa (value,buffer,10);
return buffer;
}
else
{
return std::string(defvalue);
}
}
std::string OvmsMetricInt::AsJSON(const char* defvalue, metric_unit_t units, int precision)
{
if (IsDefined())
return AsString(defvalue, units, precision);
else
return std::string((defvalue && *defvalue) ? defvalue : "0");
}
float OvmsMetricInt::AsFloat(const float defvalue, metric_unit_t units)
{
return (float)AsInt((int)defvalue, units);
}
int OvmsMetricInt::AsInt(const int defvalue, metric_unit_t units)
{
if (IsDefined())
{
if ((units != Other)&&(units != m_units))
return UnitConvert(m_units,units,m_value);
else
return m_value;
}
else
return defvalue;
}
#ifdef CONFIG_OVMS_SC_JAVASCRIPT_DUKTAPE
void OvmsMetricInt::DukPush(DukContext &dc)
{
dc.Push(m_value);
}
#endif
bool OvmsMetricInt::SetValue(int value, metric_unit_t units)
{
int nvalue = value;
if ((units != Other)&&(units != m_units)) nvalue=UnitConvert(units,m_units,value);
if (m_value != nvalue)
{
m_value = nvalue;
if (m_valuep)
*m_valuep = m_value;
SetModified(true);
return true;
}
else
{
SetModified(false);
return false;
}
}
bool OvmsMetricInt::SetValue(std::string value)
{
int nvalue = atoi(value.c_str());
if (m_value != nvalue)
{
m_value = nvalue;
if (m_valuep)
*m_valuep = m_value;
SetModified(true);
return true;
}
else
{
SetModified(false);
return false;
}
}
bool OvmsMetricInt::SetValue(dbcNumber& value)
{
return SetValue(value.GetSignedInteger());
}
void OvmsMetricInt::Clear()
{
SetValue(0);
OvmsMetric::Clear();
}
OvmsMetricBool::OvmsMetricBool(const char* name, uint16_t autostale, metric_unit_t units, bool persist)
: OvmsMetric(name, autostale, units, persist)
{
m_value = false;
m_valuep = NULL;
m_persist = persist;
if (m_persist)
{
persistent_values *vp = pmetrics_register(name);
if (!vp)
{
m_persist = false;
}
else
{
m_valuep = reinterpret_cast<bool*>(&vp->value);
if (m_value != *m_valuep)
{
m_value = *m_valuep;
SetModified(true);
ESP_LOGI(TAG, "persist %s = %s", name, AsUnitString().c_str());
}
}
}
}
OvmsMetricBool::~OvmsMetricBool()
{
}
bool OvmsMetricBool::CheckPersist()
{
if (!m_persist || !m_valuep || !IsDefined())
return true;
if (*m_valuep != m_value)
{
ESP_LOGE(TAG, "CheckPersist: bad value for %s", m_name);
return false;
}
persistent_values *vp = pmetrics_find(m_name);
if (vp == NULL)
{
ESP_LOGE(TAG, "CheckPersist: can't find %s", m_name);
return false;
}
if (m_valuep != reinterpret_cast<bool*>(&vp->value))
{
ESP_LOGE(TAG, "CheckPersist: bad address for %s", m_name);
return false;
}
return true;
}
void OvmsMetricBool::RefreshPersist()
{
if (m_persist && m_valuep && IsDefined())
*m_valuep = m_value;
}
std::string OvmsMetricBool::AsString(const char* defvalue, metric_unit_t units, int precision)
{
if (IsDefined())
{
if (m_value)
return std::string("yes");
else
return std::string("no");
}
else
{
return std::string(defvalue);
}
}
std::string OvmsMetricBool::AsJSON(const char* defvalue, metric_unit_t units, int precision)
{
if (IsDefined())
{
if (m_value)
return std::string("true");
else
return std::string("false");
}
else
{
if (strtobool(defvalue) == true)
return std::string("true");
else
return std::string("false");
}
}
float OvmsMetricBool::AsFloat(const float defvalue, metric_unit_t units)
{
return (float)AsBool((bool)defvalue);
}
int OvmsMetricBool::AsBool(const bool defvalue)
{
if (IsDefined())
return m_value;
else
return defvalue;
}
#ifdef CONFIG_OVMS_SC_JAVASCRIPT_DUKTAPE
void OvmsMetricBool::DukPush(DukContext &dc)
{
dc.Push(m_value);
}
#endif
bool OvmsMetricBool::SetValue(bool value)
{
if (m_value != value)
{
m_value = value;
if (m_valuep)
*m_valuep = m_value;
SetModified(true);
return true;
}
else
{
SetModified(false);
return false;
}
}
bool OvmsMetricBool::SetValue(std::string value)
{
bool nvalue = strtobool(value);
if (m_value != nvalue)
{
m_value = nvalue;
if (m_valuep)
*m_valuep = m_value;
SetModified(true);
return true;
}
else
{
SetModified(false);
return false;
}
}
bool OvmsMetricBool::SetValue(dbcNumber& value)
{
return SetValue((bool)value.GetUnsignedInteger());
}
void OvmsMetricBool::Clear()
{
SetValue(false);
OvmsMetric::Clear();
}
OvmsMetricFloat::OvmsMetricFloat(const char* name, uint16_t autostale, metric_unit_t units, bool persist)
: OvmsMetric(name, autostale, units, persist)
{
m_value = 0.0;
m_valuep = NULL;
m_persist = persist;
if (m_persist)
{
persistent_values *vp = pmetrics_register(name);
if (!vp)
{
m_persist = false;
}
else
{
m_valuep = reinterpret_cast<float*>(&vp->value);
if (m_value != *m_valuep)
{
m_value = *m_valuep;
SetModified(true);
ESP_LOGI(TAG, "persist %s = %s", name, AsUnitString().c_str());
}
}
}
}
OvmsMetricFloat::~OvmsMetricFloat()
{
}
bool OvmsMetricFloat::CheckPersist()
{
if (!m_persist || !m_valuep || !IsDefined())
return true;
if (*m_valuep != m_value)
{
ESP_LOGE(TAG, "CheckPersist: bad value for %s", m_name);
return false;
}
persistent_values *vp = pmetrics_find(m_name);
if (vp == NULL)
{
ESP_LOGE(TAG, "CheckPersist: can't find %s", m_name);
return false;
}
if (m_valuep != reinterpret_cast<float*>(&vp->value))
{
ESP_LOGE(TAG, "CheckPersist: bad address for %s", m_name);
return false;
}
return true;
}
void OvmsMetricFloat::RefreshPersist()
{
if (m_persist && m_valuep && IsDefined())
*m_valuep = m_value;
}
std::string OvmsMetricFloat::AsString(const char* defvalue, metric_unit_t units, int precision)
{
if (IsDefined())
{
std::ostringstream ss;
if (precision >= 0)
{
ss.precision(precision); // Set desired precision
ss << fixed;
}
if ((units != Other)&&(units != m_units))
ss << UnitConvert(m_units,units,m_value);
else
ss << m_value;
std::string s(ss.str());
return s;
}
else
{
return std::string(defvalue);
}
}
std::string OvmsMetricFloat::AsJSON(const char* defvalue, metric_unit_t units, int precision)
{
if (IsDefined())
return AsString(defvalue, units, precision);
else
return std::string((defvalue && *defvalue) ? defvalue : "0");
}
float OvmsMetricFloat::AsFloat(const float defvalue, metric_unit_t units)
{
if (IsDefined())
{
if ((units != Other)&&(units != m_units))
return UnitConvert(m_units,units,m_value);
else
return m_value;
}
else
return defvalue;
}
int OvmsMetricFloat::AsInt(const int defvalue, metric_unit_t units)
{
return (int) AsFloat((float) defvalue, units);
}
#ifdef CONFIG_OVMS_SC_JAVASCRIPT_DUKTAPE
void OvmsMetricFloat::DukPush(DukContext &dc)
{
dc.Push(m_value);
}
#endif
bool OvmsMetricFloat::SetValue(float value, metric_unit_t units)
{
float nvalue = value;
if ((units != Other)&&(units != m_units)) nvalue=UnitConvert(units,m_units,value);
if (m_value != nvalue)
{
m_value = nvalue;
if (m_valuep)
*m_valuep = m_value;
SetModified(true);
return true;
}
else
{
SetModified(false);
return false;
}
}
bool OvmsMetricFloat::SetValue(std::string value)
{
float nvalue = atof(value.c_str());
if (m_value != nvalue)
{
m_value = nvalue;
if (m_valuep)
*m_valuep = m_value;
SetModified(true);
return true;
}
else
{
SetModified(false);
return false;
}
}
bool OvmsMetricFloat::SetValue(dbcNumber& value)
{
return SetValue((float)value.GetDouble());
}
void OvmsMetricFloat::Clear()
{
SetValue(0);
OvmsMetric::Clear();
}
OvmsMetricString::OvmsMetricString(const char* name, uint16_t autostale, metric_unit_t units, bool persist)
: OvmsMetric(name, autostale, units, persist)
{
}
OvmsMetricString::~OvmsMetricString()
{
}
std::string OvmsMetricString::AsString(const char* defvalue, metric_unit_t units, int precision)
{
if (IsDefined())
{
OvmsMutexLock lock(&m_mutex);
return m_value;
}
else
{
return std::string(defvalue);
}
}
#ifdef CONFIG_OVMS_SC_JAVASCRIPT_DUKTAPE
void OvmsMetricString::DukPush(DukContext &dc)
{
OvmsMutexLock lock(&m_mutex);
dc.Push(m_value);
}
#endif
bool OvmsMetricString::SetValue(std::string value)
{
if (m_mutex.Lock())
{
bool modified = false;
if (m_value.compare(value)!=0)
{
m_value = value;
modified = true;
}
m_mutex.Unlock();
SetModified(modified);
return modified;
}
return false;
}
void OvmsMetricString::Clear()
{
SetValue("");
OvmsMetric::Clear();
}
const char* OvmsMetricUnitLabel(metric_unit_t units)
{
switch (units)
{
case Kilometers: return "km";
case Miles: return "M";
case Meters: return "m";
case Feet: return "ft";
case Celcius: return "°C";
case Fahrenheit: return "°F";
case kPa: return "kPa";
case Pa: return "Pa";
case PSI: return "psi";
case Volts: return "V";
case Amps: return "A";
case AmpHours: return "Ah";
case kW: return "kW";
case kWh: return "kWh";
case Watts: return "W";
case WattHours: return "Wh";
case Seconds: return "Sec";
case Minutes: return "Min";
case Hours: return "Hour";
case TimeUTC: return "UTC";
case Degrees: return "°";
case Kph: return "km/h";
case Mph: return "Mph";
case KphPS: return "km/h/s";
case MphPS: return "Mph/s";
case MetersPSS: return "m/s²";
case dbm: return "dBm";
case sq: return "sq";
case Percentage: return "%";
case WattHoursPK: return "Wh/km";
case WattHoursPM: return "Wh/mi";
case Nm: return "Nm";
default: return "";
}
}
int UnitConvert(metric_unit_t from, metric_unit_t to, int value)
{
switch (from)
{
case Kilometers:
if (to == Miles) return (value*5)/8;
else if (to == Meters) return value/1000;
break;
case Miles:
if (to == Kilometers) return (value*8)/5;
else if (to == Meters) return (value*8000)/5;
break;
case Meters:
if (to == Feet) return (int)(value * 3.28084);
break;
case Feet:
if (to == Meters) return (int)(value * 0.3048);
break;
case KphPS:
if (to == MphPS) return (value*5)/8;
else if (to == MetersPSS) return (value*1000)/3600;
break;
case MphPS:
if (to == KphPS) return (value*8)/5;
else if (to == MetersPSS) return (value*8000)/(5*3600);
break;
case MetersPSS:
if (to == KphPS) return (int) (value*3.6);
else if (to == MphPS) return (int) (value*3.6/1.60934);
break;
case kW:
if (to == Watts) return (value*1000);
break;
case Watts:
if (to == kW) return (value/1000);
break;
case kWh:
if (to == WattHours) return (value*1000);
break;
case WattHours:
if (to == kWh) return (value/1000);
break;
case WattHoursPK:
if (to == WattHoursPM) return (value*8)/5;
break;
case WattHoursPM:
if (to == WattHoursPK) return (value*5)/8;
break;
case Celcius:
if (to == Fahrenheit) return ((value*9)/5) + 32;
break;
case Fahrenheit:
if (to == Celcius) return ((value-32)*5)/9;
break;
case kPa:
if (to == Pa) return value*1000;
else if (to == PSI) return int((float)value * 0.14503773773020923);
break;
case Pa:
if (to == kPa) return value/1000;
else if (to == PSI) return int((float)value * 0.00014503773773020923);
break;
case PSI:
if (to == kPa) return int((float)value * 6.894757293168361);
else if (to == Pa) return int((float)value * 0.006894757293168361);
break;
case Seconds:
if (to == Minutes) return value/60;
else if (to == Hours) return value/3600;
break;
case Minutes:
if (to == Seconds || to == TimeUTC || to == TimeLocal) return value*60;
else if (to == Hours) return value/60;
break;
case Hours:
if (to == Seconds || to == TimeUTC || to == TimeLocal) return value*3600;
else if (to == Minutes) return value*60;
break;
case TimeUTC:
if (to == TimeLocal)
{
time_t now;
time(&now);
now -= now % (24*60*60); // Back to midnight UTC
now += value; // The target time today
struct tm* tmu = localtime(&now);
return (tmu->tm_hour * 60 + tmu->tm_min) * 60 + tmu->tm_sec;
}
else if (to == Minutes) return value/60;
else if (to == Hours) return value/3600;
break;
case Kph:
if (to == Mph) return (value*5)/8;
break;
case Mph:
if (to == Kph) return (value*8)/5;
break;
case dbm:
if (to == sq) return (value <= -51)?((value + 113)/2):0;
break;
case sq:
if (to == dbm) return (value <= 31)?(-113 + (value*2)):0;
break;
default:
return value;
}
return value;
}
float UnitConvert(metric_unit_t from, metric_unit_t to, float value)
{
switch (from)
{
case Kilometers:
if (to == Miles) return (value/1.60934);
else if (to == Meters) return value/1000;
break;
case Miles:
if (to == Kilometers) return (value*1.60934);
else if (to == Meters) return (value*1609.34);
break;
case Meters:
if (to == Feet) return (value * 3.28084);
break;
case Feet:
if (to == Meters) return (value * 0.3048);
break;
case KphPS:
if (to == MphPS) return (value/1.60934);
else if (to == MetersPSS) return value/3.6;
break;
case MphPS:
if (to == KphPS) return (value*8)/5;
else if (to == MetersPSS) return (value*1.60934/3.6);
break;
case MetersPSS:
if (to == KphPS) return (value*3.6);
else if (to == MphPS) return (value*3.6/1.60934);
break;
case kW:
if (to == Watts) return (value*1000);
break;
case Watts:
if (to == kW) return (value/1000);
break;
case kWh:
if (to == WattHours) return (value*1000);
break;
case WattHours:
if (to == kWh) return (value/1000);
break;
case WattHoursPK:
if (to == WattHoursPM) return (value*1.60934);
break;
case WattHoursPM:
if (to == WattHoursPK) return (value/1.60934);
break;
case Celcius:
if (to == Fahrenheit) return ((value*9)/5) + 32;
break;
case Fahrenheit:
if (to == Celcius) return ((value-32)*5)/9;
break;
case kPa:
if (to == Pa) return value*1000;
else if (to == PSI) return value * 0.14503773773020923;
break;
case Pa:
if (to == kPa) return value/1000;
else if (to == PSI) return value * 0.00014503773773020923;
break;
case PSI:
if (to == kPa) return value * 6.894757293168361;
else if (to == Pa) return value * 0.006894757293168361;
break;
case Seconds:
if (to == Minutes) return value/60;
else if (to == Hours) return value/3600;
break;
case Minutes:
if (to == Seconds) return value*60;
else if (to == Hours) return value/60;
break;
case Hours:
if (to == Seconds) return value*3600;
else if (to == Minutes) return value*60;
break;
case Kph:
if (to == Mph) return (value/1.60934);
break;
case Mph:
if (to == Kph) return (value*1.60934);
break;
case dbm:
if (to == sq) return int((value <= -51)?((value + 113)/2):0);
break;
case sq:
if (to == dbm) return int((value <= 31)?(-113 + (value*2)):0);
break;
default:
return value;
}
return value;
}