# ## Define errorHistorySize
# errorHistorySize=100;
## Define BUFFER_TTL in nanoseconds
- BUFFER_TTL_NS=$((BUFFER_TTL * 10**9));
+ BUFFER_TTL_NS=$((BUFFER_TTL * 10**9)) && vbm "BUFFER_TTL_NS:$BUFFER_TTL_NS";
# Calculate Error, errNS, in nanoseconds
## Get current time
- timeBufferStartNS="$(timeEpochNS)";
+ timeBufferStartNS="$(timeEpochNS)" && vbm "timeBufferStartNS:$timeBufferStartNS";
## Calculate expected time (from start time, current buffer round number, nominal BUFFER_TTL)
- timeBufferStartNSExp="$(( (timeBufferFirstNS) + (BUFFER_TTL_NS * bufferRound) ))";
+ timeBufferStartNSExp="$(( (timeBufferFirstNS) + (BUFFER_TTL_NS * bufferRound) ))" && vbm "timeBufferStartNSExp:$timeBufferStartNSExp";
## Calculate error (diff between timeBufferStartNSExp and timeBufferStartNS; usually negative)
- errNS="$(( timeBufferStartNSExp - timeBufferStartNS ))";
- errNSx10e3="$((errNS*10**3))";
+ errNS="$(( timeBufferStartNSExp - timeBufferStartNS ))" && vbm "errNS:$errNS";
+ errNSx10e3="$((errNS*10**3))" && vbm "errNSx10e3:$errNSx10e3";
# ## Append error to errorHistory
# errorHistory+=("errNS");
# ### Trim errorHistory array if over errorHistorySize
# for value in "${errorHistory[@]}"; do
# errReset=$(( errReset + ( value*BUFFER_TTL_NS ) ));
# done;
- errResetx10e3="$(( ( errResetx10e3 + ( errNS * BUFFER_TTL_NS ) )*10**3 ))";
+ errResetx10e3="$(( ( errResetx10e3 + ( errNS * BUFFER_TTL_NS ) )*10**3 ))" && vbm "errResetx10e3:$errResetx10e3";
# Calculate errRate in nanoseconds per 1000 nanoseconds
- errRatex10e3="$(( ( errNSx10e3 ) / BUFFER_TTL_NS ))";
+ errRatex10e3="$(( ( errNSx10e3 ) / BUFFER_TTL_NS ))" && vbm "errRatex10e3:$errRatex10e3";
# Calculate PID control signal
## ADJ = K_P * (errNS + errReset/T_I + errRate*T_D)
- ADJ="$((K_P*(errNSx10e3 + (errResetx10e3/T_I) + (errRatex10e3*T_D) )/10**3))";
+ ADJ="$((K_P*(errNSx10e3 + (errResetx10e3/T_I) + (errRatex10e3*T_D) )/10**3))" && vbm "ADJ:$ADJ";
# Calculate BUFFER_TTL_ADJ_FLOAT from ADJ (ns)
## Calculate BUFFER_TTL_ADJ in nanoseconds (BUFFER_TTL_ADJ_NS = BUFFER_TTL_NS + ADJ)
- BUFFER_TTL_ADJ_NS="$((BUFFER_TTL_NS + ADJ))";
+ BUFFER_TTL_ADJ_NS="$((BUFFER_TTL_NS + ADJ))" && vbm "BUFFER_TTL_ADJ_NS:$BUFFER_TTL_ADJ_NS";
## Calculate integer seconds
- BUFFER_TTL_ADJ_INT="$((BUFFER_TTL_ADJ_NS/(10**9)))";
+ BUFFER_TTL_ADJ_INT="$((BUFFER_TTL_ADJ_NS/(10**9)))" && vbm "BUFFER_TTL_ADJ_INT:$BUFFER_TTL_ADJ_INT";
## Calculate nanosecond remainder
- BUFFER_TTL_ADJ_FLOATFRAC="$((BUFFER_TTL_NS - (BUFFER_TTL_ADJ_INT*(10**9)) ))";
+ BUFFER_TTL_ADJ_FLOATFRAC="$((BUFFER_TTL_NS - (BUFFER_TTL_ADJ_INT*(10**9)) ))" && vbm "BUFFER_TTL_ADJ_FLOATFRAC:$BUFFER_TTL_ADJ_FLOATFRAC";
## Form float BUFFER_TTL_ADJ_FLOAT
- BUFFER_TTL_ADJ_FLOAT="$BUFFER_TTL_ADJ_INT"."$BUFFER_TTL_ADJ_FLOATFRAC";
+ BUFFER_TTL_ADJ_FLOAT="$BUFFER_TTL_ADJ_INT"."$BUFFER_TTL_ADJ_FLOATFRAC" && vbm "BUFFER_TTL_ADJ_FLOAT:$BUFFER_TTL_ADJ_FLOAT";
vbm "STATUS:Calculated adjusted BUFFER_TTL (seconds):$BUFFER_TTL_ADJ_FLOAT";
+ sleep 1 # Debug
} # Calc BUFFER_TTL_ADJ_FLOAT so buffer starts every BUFFER_TTL seconds
magicWriteVersion() {
# Desc: Appends time-stamped VERSION to PATHOUT_TAR