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#
#
# Nim's Runtime Library
# (c) Copyright 2016 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
## Memory tracking support for Nim.
when not defined(memTracker):
{.error: "Memory tracking support is turned off! Enable memory tracking by passing `--memtracker:on` to the compiler (see the Nim Compiler User Guide for more options).".}
when defined(noSignalHandler):
{.error: "Memory tracking works better with the default signal handler.".}
# We don't want to memtrack the tracking code ...
{.push memtracker: off.}
type
LogEntry* = object
op*: cstring
address*: pointer
size*: int
file*: cstring
line*: int
TrackLog* = object
count*: int
disabled: bool
data*: array[4000, LogEntry]
TrackLogger* = proc (log: TrackLog) {.nimcall, tags: [], locks: 0.}
var
gLog*: TrackLog
gLogger*: TrackLogger = proc (log: TrackLog) = discard
proc setTrackLogger*(logger: TrackLogger) =
gLogger = logger
proc addEntry(entry: LogEntry) =
if not gLog.disabled:
if gLog.count > high(gLog.data):
gLogger(gLog)
gLog.count = 0
gLog.data[gLog.count] = entry
inc gLog.count
proc memTrackerWrite(address: pointer; size: int; file: cstring; line: int) {.compilerProc.} =
addEntry LogEntry(op: "write", address: address,
size: size, file: file, line: line)
proc memTrackerOp*(op: cstring; address: pointer; size: int) =
addEntry LogEntry(op: op, address: address, size: size,
file: "", line: 0)
proc memTrackerDisable*() =
gLog.disabled = true
proc memTrackerEnable*() =
gLog.disabled = false
proc logPendingOps() {.noconv.} =
# forward declared and called from Nim's signal handler.
gLogger(gLog)
gLog.count = 0
addQuitProc logPendingOps
{.pop.}
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