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Use RichString_appendnAscii where possible

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`RichString_appendnAscii()` avoids a `strlen(3)` call over
` RichString_appendAscii()`.
Use the former where the length is available from a previous checked
`snprintf(3)` call.

Keep `RichString_appendAscii()` when passing a string literal and
rely on compilers to optimize the `strlen(3)` call away.
This commit is contained in:
Christian Göttsche 2021-04-14 20:47:42 +02:00 committed by cgzones
parent 099dab88be
commit 436808ff99
9 changed files with 85 additions and 67 deletions
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54
CPUMeter.c
View File

@ -101,51 +101,53 @@ static void CPUMeter_updateValues(Meter* this) {
static void CPUMeter_display(const Object* cast, RichString* out) {
char buffer[50];
int len;
const Meter* this = (const Meter*)cast;
if (this->param > this->pl->cpuCount) {
RichString_appendAscii(out, CRT_colors[METER_TEXT], "absent");
return;
}
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_NORMAL]);
len = xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_NORMAL]);
RichString_appendAscii(out, CRT_colors[METER_TEXT], ":");
RichString_appendAscii(out, CRT_colors[CPU_NORMAL], buffer);
RichString_appendnAscii(out, CRT_colors[CPU_NORMAL], buffer, len);
if (this->pl->settings->detailedCPUTime) {
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_KERNEL]);
len = xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_KERNEL]);
RichString_appendAscii(out, CRT_colors[METER_TEXT], "sy:");
RichString_appendAscii(out, CRT_colors[CPU_SYSTEM], buffer);
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_NICE]);
RichString_appendnAscii(out, CRT_colors[CPU_SYSTEM], buffer, len);
len = xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_NICE]);
RichString_appendAscii(out, CRT_colors[METER_TEXT], "ni:");
RichString_appendAscii(out, CRT_colors[CPU_NICE_TEXT], buffer);
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_IRQ]);
RichString_appendnAscii(out, CRT_colors[CPU_NICE_TEXT], buffer, len);
len = xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_IRQ]);
RichString_appendAscii(out, CRT_colors[METER_TEXT], "hi:");
RichString_appendAscii(out, CRT_colors[CPU_IRQ], buffer);
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_SOFTIRQ]);
RichString_appendnAscii(out, CRT_colors[CPU_IRQ], buffer, len);
len = xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_SOFTIRQ]);
RichString_appendAscii(out, CRT_colors[METER_TEXT], "si:");
RichString_appendAscii(out, CRT_colors[CPU_SOFTIRQ], buffer);
RichString_appendnAscii(out, CRT_colors[CPU_SOFTIRQ], buffer, len);
if (!isnan(this->values[CPU_METER_STEAL])) {
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_STEAL]);
len = xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_STEAL]);
RichString_appendAscii(out, CRT_colors[METER_TEXT], "st:");
RichString_appendAscii(out, CRT_colors[CPU_STEAL], buffer);
RichString_appendnAscii(out, CRT_colors[CPU_STEAL], buffer, len);
}
if (!isnan(this->values[CPU_METER_GUEST])) {
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_GUEST]);
len = xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_GUEST]);
RichString_appendAscii(out, CRT_colors[METER_TEXT], "gu:");
RichString_appendAscii(out, CRT_colors[CPU_GUEST], buffer);
RichString_appendnAscii(out, CRT_colors[CPU_GUEST], buffer, len);
}
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_IOWAIT]);
len = xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_IOWAIT]);
RichString_appendAscii(out, CRT_colors[METER_TEXT], "wa:");
RichString_appendAscii(out, CRT_colors[CPU_IOWAIT], buffer);
RichString_appendnAscii(out, CRT_colors[CPU_IOWAIT], buffer, len);
} else {
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_KERNEL]);
len = xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_KERNEL]);
RichString_appendAscii(out, CRT_colors[METER_TEXT], "sys:");
RichString_appendAscii(out, CRT_colors[CPU_SYSTEM], buffer);
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_NICE]);
RichString_appendnAscii(out, CRT_colors[CPU_SYSTEM], buffer, len);
len = xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_NICE]);
RichString_appendAscii(out, CRT_colors[METER_TEXT], "low:");
RichString_appendAscii(out, CRT_colors[CPU_NICE_TEXT], buffer);
RichString_appendnAscii(out, CRT_colors[CPU_NICE_TEXT], buffer, len);
if (!isnan(this->values[CPU_METER_IRQ])) {
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_IRQ]);
len = xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_IRQ]);
RichString_appendAscii(out, CRT_colors[METER_TEXT], "vir:");
RichString_appendAscii(out, CRT_colors[CPU_GUEST], buffer);
RichString_appendnAscii(out, CRT_colors[CPU_GUEST], buffer, len);
}
}
@ -154,14 +156,14 @@ static void CPUMeter_display(const Object* cast, RichString* out) {
char cpuTemperatureBuffer[10];
double cpuTemperature = this->values[CPU_METER_TEMPERATURE];
if (isnan(cpuTemperature)) {
xSnprintf(cpuTemperatureBuffer, sizeof(cpuTemperatureBuffer), "N/A");
len = xSnprintf(cpuTemperatureBuffer, sizeof(cpuTemperatureBuffer), "N/A");
} else if (this->pl->settings->degreeFahrenheit) {
xSnprintf(cpuTemperatureBuffer, sizeof(cpuTemperatureBuffer), "%5.1f%sF", cpuTemperature * 9 / 5 + 32, CRT_degreeSign);
len = xSnprintf(cpuTemperatureBuffer, sizeof(cpuTemperatureBuffer), "%5.1f%sF", cpuTemperature * 9 / 5 + 32, CRT_degreeSign);
} else {
xSnprintf(cpuTemperatureBuffer, sizeof(cpuTemperatureBuffer), "%5.1f%sC", cpuTemperature, CRT_degreeSign);
len = xSnprintf(cpuTemperatureBuffer, sizeof(cpuTemperatureBuffer), "%5.1f%sC", cpuTemperature, CRT_degreeSign);
}
RichString_appendAscii(out, CRT_colors[METER_TEXT], "temp:");
RichString_appendWide(out, CRT_colors[METER_VALUE], cpuTemperatureBuffer);
RichString_appendnWide(out, CRT_colors[METER_VALUE], cpuTemperatureBuffer, len);
}
#endif
}

5
DiskIOMeter.c
View File

@ -97,10 +97,11 @@ static void DiskIOMeter_display(ATTR_UNUSED const Object* cast, RichString* out)
}
char buffer[16];
int len;
int color = cached_utilisation_diff > 40.0 ? METER_VALUE_NOTICE : METER_VALUE;
xSnprintf(buffer, sizeof(buffer), "%.1f%%", cached_utilisation_diff);
RichString_writeAscii(out, CRT_colors[color], buffer);
len = xSnprintf(buffer, sizeof(buffer), "%.1f%%", cached_utilisation_diff);
RichString_appendnAscii(out, CRT_colors[color], buffer, len);
RichString_appendAscii(out, CRT_colors[METER_TEXT], " read: ");
Meter_humanUnit(buffer, cached_read_diff, sizeof(buffer));

20
LoadAverageMeter.c
View File

@ -60,12 +60,14 @@ static void LoadAverageMeter_updateValues(Meter* this) {
static void LoadAverageMeter_display(const Object* cast, RichString* out) {
const Meter* this = (const Meter*)cast;
char buffer[20];
xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[0]);
RichString_writeAscii(out, CRT_colors[LOAD_AVERAGE_ONE], buffer);
xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[1]);
RichString_appendAscii(out, CRT_colors[LOAD_AVERAGE_FIVE], buffer);
xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[2]);
RichString_appendAscii(out, CRT_colors[LOAD_AVERAGE_FIFTEEN], buffer);
int len;
len = xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[0]);
RichString_appendnAscii(out, CRT_colors[LOAD_AVERAGE_ONE], buffer, len);
len = xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[1]);
RichString_appendnAscii(out, CRT_colors[LOAD_AVERAGE_FIVE], buffer, len);
len = xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[2]);
RichString_appendnAscii(out, CRT_colors[LOAD_AVERAGE_FIFTEEN], buffer, len);
}
static void LoadMeter_updateValues(Meter* this) {
@ -90,8 +92,10 @@ static void LoadMeter_updateValues(Meter* this) {
static void LoadMeter_display(const Object* cast, RichString* out) {
const Meter* this = (const Meter*)cast;
char buffer[20];
xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[0]);
RichString_writeAscii(out, CRT_colors[LOAD], buffer);
int len;
len = xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[0]);
RichString_appendnAscii(out, CRT_colors[LOAD], buffer, len);
}
const MeterClass LoadAverageMeter_class = {

5
NetworkIOMeter.c
View File

@ -103,6 +103,7 @@ static void NetworkIOMeter_display(ATTR_UNUSED const Object* cast, RichString* o
}
char buffer[64];
int len;
RichString_writeAscii(out, CRT_colors[METER_TEXT], "rx: ");
Meter_humanUnit(buffer, cached_rxb_diff, sizeof(buffer));
@ -114,8 +115,8 @@ static void NetworkIOMeter_display(ATTR_UNUSED const Object* cast, RichString* o
RichString_appendAscii(out, CRT_colors[METER_VALUE_IOWRITE], buffer);
RichString_appendAscii(out, CRT_colors[METER_VALUE_IOWRITE], "iB/s");
xSnprintf(buffer, sizeof(buffer), " (%u/%u packets) ", cached_rxp_diff, cached_txp_diff);
RichString_appendAscii(out, CRT_colors[METER_TEXT], buffer);
len = xSnprintf(buffer, sizeof(buffer), " (%u/%u packets) ", cached_rxp_diff, cached_txp_diff);
RichString_appendnAscii(out, CRT_colors[METER_TEXT], buffer, len);
}
const MeterClass NetworkIOMeter_class = {

2
OptionItem.c
View File

@ -53,7 +53,7 @@ static void NumberItem_display(const Object* cast, RichString* out) {
} else {
written = xSnprintf(buffer, sizeof(buffer), "%d", NumberItem_get(this));
}
RichString_appendAscii(out, CRT_colors[CHECK_MARK], buffer);
RichString_appendnAscii(out, CRT_colors[CHECK_MARK], buffer, written);
RichString_appendAscii(out, CRT_colors[CHECK_BOX], "]");
for (int i = written; i < 5; i++) {
RichString_appendAscii(out, CRT_colors[CHECK_BOX], " ");

17
TasksMeter.c
View File

@ -38,23 +38,24 @@ static void TasksMeter_display(const Object* cast, RichString* out) {
const Meter* this = (const Meter*)cast;
const Settings* settings = this->pl->settings;
char buffer[20];
int len;
xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[2]);
RichString_writeAscii(out, CRT_colors[METER_VALUE], buffer);
len = xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[2]);
RichString_appendnAscii(out, CRT_colors[METER_VALUE], buffer, len);
RichString_appendAscii(out, settings->hideUserlandThreads ? CRT_colors[METER_SHADOW] : CRT_colors[METER_TEXT], ", ");
xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[1]);
RichString_appendAscii(out, settings->hideUserlandThreads ? CRT_colors[METER_SHADOW] : CRT_colors[TASKS_RUNNING], buffer);
len = xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[1]);
RichString_appendnAscii(out, settings->hideUserlandThreads ? CRT_colors[METER_SHADOW] : CRT_colors[TASKS_RUNNING], buffer, len);
RichString_appendAscii(out, settings->hideUserlandThreads ? CRT_colors[METER_SHADOW] : CRT_colors[METER_TEXT], " thr");
RichString_appendAscii(out, settings->hideKernelThreads ? CRT_colors[METER_SHADOW] : CRT_colors[METER_TEXT], ", ");
xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[0]);
RichString_appendAscii(out, settings->hideKernelThreads ? CRT_colors[METER_SHADOW] : CRT_colors[TASKS_RUNNING], buffer);
len = xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[0]);
RichString_appendnAscii(out, settings->hideKernelThreads ? CRT_colors[METER_SHADOW] : CRT_colors[TASKS_RUNNING], buffer, len);
RichString_appendAscii(out, settings->hideKernelThreads ? CRT_colors[METER_SHADOW] : CRT_colors[METER_TEXT], " kthr");
RichString_appendAscii(out, CRT_colors[METER_TEXT], "; ");
xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[3]);
RichString_appendAscii(out, CRT_colors[TASKS_RUNNING], buffer);
len = xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[3]);
RichString_appendnAscii(out, CRT_colors[TASKS_RUNNING], buffer, len);
RichString_appendAscii(out, CRT_colors[METER_TEXT], " running");
}

14
linux/PressureStallMeter.c
View File

@ -53,12 +53,14 @@ static void PressureStallMeter_updateValues(Meter* this) {
static void PressureStallMeter_display(const Object* cast, RichString* out) {
const Meter* this = (const Meter*)cast;
char buffer[20];
xSnprintf(buffer, sizeof(buffer), "%5.2lf%% ", this->values[0]);
RichString_writeAscii(out, CRT_colors[PRESSURE_STALL_TEN], buffer);
xSnprintf(buffer, sizeof(buffer), "%5.2lf%% ", this->values[1]);
RichString_appendAscii(out, CRT_colors[PRESSURE_STALL_SIXTY], buffer);
xSnprintf(buffer, sizeof(buffer), "%5.2lf%% ", this->values[2]);
RichString_appendAscii(out, CRT_colors[PRESSURE_STALL_THREEHUNDRED], buffer);
int len;
len = xSnprintf(buffer, sizeof(buffer), "%5.2lf%% ", this->values[0]);
RichString_appendnAscii(out, CRT_colors[PRESSURE_STALL_TEN], buffer, len);
len = xSnprintf(buffer, sizeof(buffer), "%5.2lf%% ", this->values[1]);
RichString_appendnAscii(out, CRT_colors[PRESSURE_STALL_SIXTY], buffer, len);
len = xSnprintf(buffer, sizeof(buffer), "%5.2lf%% ", this->values[2]);
RichString_appendnAscii(out, CRT_colors[PRESSURE_STALL_THREEHUNDRED], buffer, len);
}
const MeterClass PressureStallCPUSomeMeter_class = {

21
linux/SystemdMeter.c
View File

@ -305,6 +305,7 @@ static int valueDigitColor(unsigned int value) {
static void SystemdMeter_display(ATTR_UNUSED const Object* cast, RichString* out) {
char buffer[16];
int len;
int color = (systemState && String_eq(systemState, "running")) ? METER_VALUE_OK : METER_VALUE_ERROR;
RichString_writeAscii(out, CRT_colors[color], systemState ? systemState : "N/A");
@ -314,40 +315,44 @@ static void SystemdMeter_display(ATTR_UNUSED const Object* cast, RichString* out
if (nFailedUnits == INVALID_VALUE) {
buffer[0] = '?';
buffer[1] = '\0';
len = 1;
} else {
xSnprintf(buffer, sizeof(buffer), "%u", nFailedUnits);
len = xSnprintf(buffer, sizeof(buffer), "%u", nFailedUnits);
}
RichString_appendAscii(out, zeroDigitColor(nFailedUnits), buffer);
RichString_appendnAscii(out, zeroDigitColor(nFailedUnits), buffer, len);
RichString_appendAscii(out, CRT_colors[METER_TEXT], "/");
if (nNames == INVALID_VALUE) {
buffer[0] = '?';
buffer[1] = '\0';
len = 1;
} else {
xSnprintf(buffer, sizeof(buffer), "%u", nNames);
len = xSnprintf(buffer, sizeof(buffer), "%u", nNames);
}
RichString_appendAscii(out, valueDigitColor(nNames), buffer);
RichString_appendnAscii(out, valueDigitColor(nNames), buffer, len);
RichString_appendAscii(out, CRT_colors[METER_TEXT], " failed) (");
if (nJobs == INVALID_VALUE) {
buffer[0] = '?';
buffer[1] = '\0';
len = 1;
} else {
xSnprintf(buffer, sizeof(buffer), "%u", nJobs);
len = xSnprintf(buffer, sizeof(buffer), "%u", nJobs);
}
RichString_appendAscii(out, zeroDigitColor(nJobs), buffer);
RichString_appendnAscii(out, zeroDigitColor(nJobs), buffer, len);
RichString_appendAscii(out, CRT_colors[METER_TEXT], "/");
if (nInstalledJobs == INVALID_VALUE) {
buffer[0] = '?';
buffer[1] = '\0';
len = 1;
} else {
xSnprintf(buffer, sizeof(buffer), "%u", nInstalledJobs);
len = xSnprintf(buffer, sizeof(buffer), "%u", nInstalledJobs);
}
RichString_appendAscii(out, valueDigitColor(nInstalledJobs), buffer);
RichString_appendnAscii(out, valueDigitColor(nInstalledJobs), buffer, len);
RichString_appendAscii(out, CRT_colors[METER_TEXT], " jobs)");
}

14
zfs/ZfsCompressedArcMeter.c
View File

@ -32,12 +32,12 @@ void ZfsCompressedArcMeter_readStats(Meter* this, const ZfsArcStats* stats) {
}
}
static void ZfsCompressedArcMeter_printRatioString(const Meter* this, char* buffer, size_t size) {
static int ZfsCompressedArcMeter_printRatioString(const Meter* this, char* buffer, size_t size) {
if (this->values[0] > 0) {
xSnprintf(buffer, size, "%.2f:1", this->total / this->values[0]);
} else {
xSnprintf(buffer, size, "N/A");
return xSnprintf(buffer, size, "%.2f:1", this->total / this->values[0]);
}
return xSnprintf(buffer, size, "N/A");
}
static void ZfsCompressedArcMeter_updateValues(Meter* this) {
@ -51,14 +51,16 @@ static void ZfsCompressedArcMeter_display(const Object* cast, RichString* out) {
if (this->values[0] > 0) {
char buffer[50];
int len;
Meter_humanUnit(buffer, this->total, sizeof(buffer));
RichString_appendAscii(out, CRT_colors[METER_VALUE], buffer);
RichString_appendAscii(out, CRT_colors[METER_TEXT], " Uncompressed, ");
Meter_humanUnit(buffer, this->values[0], sizeof(buffer));
RichString_appendAscii(out, CRT_colors[METER_VALUE], buffer);
RichString_appendAscii(out, CRT_colors[METER_TEXT], " Compressed, ");
ZfsCompressedArcMeter_printRatioString(this, buffer, sizeof(buffer));
RichString_appendAscii(out, CRT_colors[ZFS_RATIO], buffer);
len = ZfsCompressedArcMeter_printRatioString(this, buffer, sizeof(buffer));
RichString_appendnAscii(out, CRT_colors[ZFS_RATIO], buffer, len);
RichString_appendAscii(out, CRT_colors[METER_TEXT], " Ratio");
} else {
RichString_writeAscii(out, CRT_colors[METER_TEXT], " ");