225 lines
6.7 KiB
Nim
225 lines
6.7 KiB
Nim
# Nimbus
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# Copyright (c) 2022-2024 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
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# http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
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# http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed except
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# according to those terms.
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## Pretty printing, an alternative to `$` for debugging
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## ----------------------------------------------------
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##
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## minimal dependencies, avoiding circular import
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import
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std/[sequtils, strformat, strutils, tables, times],
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eth/common,
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stew/byteutils,
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../../nimbus/constants
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export
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sequtils, strformat, strutils
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# ------------------------------------------------------------------------------
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# Helpers
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# ------------------------------------------------------------------------------
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func reGroup(q: openArray[int]; itemsPerSegment = 16): seq[seq[int]] =
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var top = 0
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while top < q.len:
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let w = top
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top = min(w + itemsPerSegment, q.len)
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result.add q[w ..< top]
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# ------------------------------------------------------------------------------
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# Public functions, units pretty printer
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# ------------------------------------------------------------------------------
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func ppUs*(elapsed: Duration): string =
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result = $elapsed.inMicroseconds
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let ns = elapsed.inNanoseconds mod 1_000 # fraction of a micro second
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if ns != 0:
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# to rounded deca milli seconds
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let du = (ns + 5i64) div 10i64
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result &= &".{du:02}"
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result &= "us"
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func ppMs*(elapsed: Duration): string =
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result = $elapsed.inMilliseconds
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let ns = elapsed.inNanoseconds mod 1_000_000 # fraction of a milli second
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if ns != 0:
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# to rounded deca milli seconds
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let dm = (ns + 5_000i64) div 10_000i64
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result &= &".{dm:02}"
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result &= "ms"
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func ppSecs*(elapsed: Duration): string =
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result = $elapsed.inSeconds
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let ns = elapsed.inNanoseconds mod 1_000_000_000 # fraction of a second
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if ns != 0:
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# round up
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let ds = (ns + 5_000_000i64) div 10_000_000i64
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result &= &".{ds:02}"
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result &= "s"
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func ppMins*(elapsed: Duration): string =
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result = $elapsed.inMinutes
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let ns = elapsed.inNanoseconds mod 60_000_000_000 # fraction of a minute
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if ns != 0:
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# round up
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let dm = (ns + 500_000_000i64) div 1_000_000_000i64
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result &= &":{dm:02}"
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result &= "m"
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func toKMG*[T](s: T): string =
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func subst(s: var string; tag, new: string): bool =
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if tag.len < s.len and s[s.len - tag.len ..< s.len] == tag:
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s = s[0 ..< s.len - tag.len] & new
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return true
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result = $s
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for w in [("000", "K"),("000K","M"),("000M","G"),("000G","T"),
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("000T","P"),("000P","E"),("000E","Z"),("000Z","Y")]:
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if not result.subst(w[0],w[1]):
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return
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func pp*(elapsed: Duration): string =
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try:
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if 0 < times.inMinutes(elapsed):
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result = elapsed.ppMins
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elif 0 < times.inSeconds(elapsed):
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result = elapsed.ppSecs
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elif 0 < times.inMilliSeconds(elapsed):
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result = elapsed.ppMs
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elif 0 < times.inMicroSeconds(elapsed):
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result = elapsed.ppUs
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else:
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result = $elapsed.inNanoSeconds & "ns"
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except ValueError:
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result = $elapsed
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# ------------------------------------------------------------------------------
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# Public functions, pretty printer
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# ------------------------------------------------------------------------------
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func pp*(s: string; hex = false): string =
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if hex:
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let n = (s.len + 1) div 2
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(if s.len < 20: s else: s[0 .. 5] & ".." & s[s.len-8 .. s.len-1]) &
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"[" & (if 0 < n: "#" & $n else: "") & "]"
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elif s.len <= 30:
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s
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else:
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(if (s.len and 1) == 0: s[0 ..< 8] else: "0" & s[0 ..< 7]) &
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"..(" & $s.len & ").." & s[s.len-16 ..< s.len]
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func pp*(q: openArray[int]; itemsPerLine: int; lineSep: string): string =
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doAssert q == q.reGroup(itemsPerLine).concat
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q.reGroup(itemsPerLine)
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.mapIt(it.mapIt(&"0x{it:02x}").join(", "))
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.join("," & lineSep)
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func pp*(a: Hash32; collapse = true): string =
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if not collapse:
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a.data.toHex
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elif a == ZERO_HASH32:
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"ZERO_HASH32"
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elif a == EMPTY_ROOT_HASH:
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"EMPTY_ROOT_HASH"
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elif a == EMPTY_UNCLE_HASH:
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"EMPTY_UNCLE_HASH"
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elif a == EMPTY_SHA3:
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"EMPTY_SHA3"
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else:
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"£" & a.data.toHex.join[0..6] & ".." & a.data.toHex.join[56..63]
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func pp*(a: openArray[Hash32]; collapse = true): string =
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"@[" & a.toSeq.mapIt(it.pp).join(" ") & "]"
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func pp*(q: openArray[int]; itemsPerLine: int; indent: int): string =
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q.pp(itemsPerLine = itemsPerLine, lineSep = "\n" & " ".repeat(max(1,indent)))
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func pp*(q: openArray[byte]; noHash = false): string =
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if q.len == 32 and not noHash:
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var a: array[32,byte]
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for n in 0..31: a[n] = q[n]
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Hash32(a).pp
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else:
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q.toHex.pp(hex = true)
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# ------------------------------------------------------------------------------
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# Elapsed time pretty printer
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# ------------------------------------------------------------------------------
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template showElapsed*(noisy: bool; info: string; code: untyped) =
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block:
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let seStartTrackling = getTime()
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block:
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code
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if noisy:
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let elpd {.inject.} = getTime() - seStartTrackling
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if 0 < times.inSeconds(elpd):
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echo "*** ", info, &": {elpd.ppSecs:>4}"
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else:
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echo "*** ", info, &": {elpd.ppMs:>4}"
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template showElapsed*(
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noisy: bool;
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info: string;
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elapsed: Duration;
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code: untyped) =
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block:
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let seStartTrackling = getTime()
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block:
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code
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block:
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elapsed = getTime() - seStartTrackling
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if noisy:
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let elpd {.inject.} = elapsed
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if 0 < times.inSeconds(elpd):
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echo "*** ", info, &": {elpd.ppSecs:>4}"
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else:
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echo "*** ", info, &": {elpd.ppMs:>4}"
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template profileSection*(
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noisy: bool;
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info: string;
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state: var (Duration, int);
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suspend: bool;
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code: untyped) =
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block:
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let psStartProfiling = getTime()
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block:
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code
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if not suspend:
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let elpd = getTime() - psStartProfiling
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if noisy:
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echo "*** ", info, ": ", elpd.pp
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state[0] += elpd
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state[1].inc
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template profileSection*(
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noisy: bool;
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info: string;
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state: var (Duration, int);
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code: untyped) =
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noisy.profileSection(info, state, suspend=false):
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code
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template catchException*(info: string; trace: bool; code: untyped) =
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block:
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try:
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code
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except CatchableError as e:
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if trace:
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echo "*** ", info, ": exception ", e.name, "(", e.msg, ")"
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echo " ", e.getStackTrace.strip.replace("\n","\n ")
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template catchException*(info: string; code: untyped) =
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catchException(info, false, code)
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# ------------------------------------------------------------------------------
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# End
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# ------------------------------------------------------------------------------
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