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IOMeters: rework initial display

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Show a non highlighted string at the start of htop, not the failure
text.
Also the original fix only handled the text mode, not the bar mode.

Improves: 2977414d ("Discard stale information from DiskIO and NetworkIO meters")
Related: #860
This commit is contained in:
Christian Göttsche 2021-12-04 18:08:59 +01:00 committed by BenBE
parent 3cfdf66d9a
commit 63fafb4844
3 changed files with 71 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
DiskIOMeter.c
View File

@ -12,6 +12,7 @@ in the source distribution for its full text.
#include "CRT.h"
#include "Macros.h"
#include "Meter.h"
#include "Object.h"
#include "Platform.h"
#include "ProcessList.h"
@ -25,7 +26,7 @@ static const int DiskIOMeter_attributes[] = {
METER_VALUE_IOWRITE,
};
static bool hasData = false;
static MeterRateStatus status = RATESTATUS_INIT;
static uint32_t cached_read_diff;
static uint32_t cached_write_diff;
static double cached_utilisation_diff;
@ -36,20 +37,27 @@ static void DiskIOMeter_updateValues(Meter* this) {
static uint64_t cached_last_update;
uint64_t passedTimeInMs = pl->realtimeMs - cached_last_update;
/* update only every 500ms */
/* update only every 500ms to have a sane span for rate calculation */
if (passedTimeInMs > 500) {
static uint64_t cached_read_total;
static uint64_t cached_write_total;
static uint64_t cached_msTimeSpend_total;
uint64_t diff;
DiskIOData data;
if (!Platform_getDiskIO(&data)) {
status = RATESTATUS_NODATA;
} else if (cached_last_update == 0) {
status = RATESTATUS_INIT;
} else if (passedTimeInMs > 30000) {
status = RATESTATUS_STALE;
} else {
status = RATESTATUS_DATA;
}
cached_last_update = pl->realtimeMs;
DiskIOData data;
hasData = Platform_getDiskIO(&data);
if (!hasData) {
this->values[0] = 0;
if (status == RATESTATUS_NODATA) {
xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "no data");
return;
}
@ -81,10 +89,13 @@ static void DiskIOMeter_updateValues(Meter* this) {
cached_msTimeSpend_total = data.totalMsTimeSpend;
}
if (passedTimeInMs > 30000) {
// Triggers for the first initialization and
// when there was a long time we did not collect updates
hasData = false;
if (status == RATESTATUS_INIT) {
xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "init");
return;
}
if (status == RATESTATUS_STALE) {
xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "stale");
return;
}
this->values[0] = cached_utilisation_diff;
@ -97,9 +108,18 @@ static void DiskIOMeter_updateValues(Meter* this) {
}
static void DiskIOMeter_display(ATTR_UNUSED const Object* cast, RichString* out) {
if (!hasData) {
switch (status) {
case RATESTATUS_NODATA:
RichString_writeAscii(out, CRT_colors[METER_VALUE_ERROR], "no data");
return;
case RATESTATUS_INIT:
RichString_writeAscii(out, CRT_colors[METER_VALUE], "initializing...");
return;
case RATESTATUS_STALE:
RichString_writeAscii(out, CRT_colors[METER_VALUE_WARN], "stale data");
return;
case RATESTATUS_DATA:
break;
}
char buffer[16];

7
Meter.h
View File

@ -134,6 +134,13 @@ typedef enum {
LAST_METERMODE
} MeterModeId;
typedef enum {
RATESTATUS_DATA,
RATESTATUS_INIT,
RATESTATUS_NODATA,
RATESTATUS_STALE
} MeterRateStatus;
extern const MeterClass Meter_class;
Meter* Meter_new(const ProcessList* pl, unsigned int param, const MeterClass* type);

43
NetworkIOMeter.c
View File

@ -5,6 +5,7 @@
#include "CRT.h"
#include "Macros.h"
#include "Meter.h"
#include "Object.h"
#include "Platform.h"
#include "Process.h"
@ -18,8 +19,7 @@ static const int NetworkIOMeter_attributes[] = {
METER_VALUE_IOWRITE,
};
static bool hasData = false;
static MeterRateStatus status = RATESTATUS_INIT;
static uint32_t cached_rxb_diff;
static uint32_t cached_rxp_diff;
static uint32_t cached_txb_diff;
@ -31,7 +31,7 @@ static void NetworkIOMeter_updateValues(Meter* this) {
uint64_t passedTimeInMs = pl->realtimeMs - cached_last_update;
/* update only every 500ms */
/* update only every 500ms to have a sane span for rate calculation */
if (passedTimeInMs > 500) {
static uint64_t cached_rxb_total;
static uint64_t cached_rxp_total;
@ -39,11 +39,20 @@ static void NetworkIOMeter_updateValues(Meter* this) {
static uint64_t cached_txp_total;
uint64_t diff;
NetworkIOData data;
if (!Platform_getNetworkIO(&data)) {
status = RATESTATUS_NODATA;
} else if (cached_last_update == 0) {
status = RATESTATUS_INIT;
} else if (passedTimeInMs > 30000) {
status = RATESTATUS_STALE;
} else {
status = RATESTATUS_DATA;
}
cached_last_update = pl->realtimeMs;
NetworkIOData data;
hasData = Platform_getNetworkIO(&data);
if (!hasData) {
if (status == RATESTATUS_NODATA) {
xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "no data");
return;
}
@ -85,10 +94,13 @@ static void NetworkIOMeter_updateValues(Meter* this) {
cached_txp_total = data.packetsTransmitted;
}
if (passedTimeInMs > 30000) {
// Triggers for the first initialization and
// when there was a long time we did not collect updates
hasData = false;
if (status == RATESTATUS_INIT) {
xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "init");
return;
}
if (status == RATESTATUS_STALE) {
xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "stale");
return;
}
this->values[0] = cached_rxb_diff;
@ -104,9 +116,18 @@ static void NetworkIOMeter_updateValues(Meter* this) {
}
static void NetworkIOMeter_display(ATTR_UNUSED const Object* cast, RichString* out) {
if (!hasData) {
switch (status) {
case RATESTATUS_NODATA:
RichString_writeAscii(out, CRT_colors[METER_VALUE_ERROR], "no data");
return;
case RATESTATUS_INIT:
RichString_writeAscii(out, CRT_colors[METER_VALUE], "initializing...");
return;
case RATESTATUS_STALE:
RichString_writeAscii(out, CRT_colors[METER_VALUE_WARN], "stale data");
return;
case RATESTATUS_DATA:
break;
}
char buffer[64];