nim-chronos/chronos.nimble

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mode = ScriptMode.Verbose
packageName = "chronos"
version = "4.0.0"
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author = "Status Research & Development GmbH"
description = "Networking framework with async/await support"
license = "MIT or Apache License 2.0"
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skipDirs = @["tests"]
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requires "nim >= 1.6.16",
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"results",
"stew",
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"bearssl",
exception tracking (#166) * exception tracking This PR adds minimal exception tracking to chronos, moving the goalpost one step further. In particular, it becomes invalid to raise exceptions from `callSoon` callbacks: this is critical for writing correct error handling because there's no reasonable way that a user of chronos can possibly _reason_ about exceptions coming out of there: the event loop will be in an indeterminite state when the loop is executing an _random_ callback. As expected, there are several issues in the error handling of chronos: in particular, it will end up in an inconsistent internal state whenever the selector loop operations fail, because the internal state update functions are not written in an exception-safe way. This PR turns this into a Defect, which probably is not the optimal way of handling things - expect more work to be done here. Some API have no way of reporting back errors to callers - for example, when something fails in the accept loop, there's not much it can do, and no way to report it back to the user of the API - this has been fixed with the new accept flow - the old one should be deprecated. Finally, there is information loss in the API: in composite operations like `poll` and `waitFor` there's no way to differentiate internal errors from user-level errors originating from callbacks. * store `CatchableError` in future * annotate proc's with correct raises information * `selectors2` to avoid non-CatchableError IOSelectorsException * `$` should never raise * remove unnecessary gcsafe annotations * fix exceptions leaking out of timer waits * fix some imports * functions must signal raising the union of all exceptions across all platforms to enable cross-platform code * switch to unittest2 * add `selectors2` which supercedes the std library version and fixes several exception handling issues in there * fixes * docs, platform-independent eh specifiers for some functions * add feature flag for strict exception mode also bump version to 3.0.0 - _most_ existing code should be compatible with this version of exception handling but some things might need fixing - callbacks, existing raises specifications etc. * fix AsyncCheck for non-void T
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"httputils",
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"unittest2"
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import os, strutils
let nimc = getEnv("NIMC", "nim") # Which nim compiler to use
let lang = getEnv("NIMLANG", "c") # Which backend (c/cpp/js)
let flags = getEnv("NIMFLAGS", "") # Extra flags for the compiler
let verbose = getEnv("V", "") notin ["", "0"]
let testArguments =
when defined(windows):
[
"-d:debug -d:chronosDebug -d:useSysAssert -d:useGcAssert",
"-d:release",
]
else:
[
"-d:debug -d:chronosDebug -d:useSysAssert -d:useGcAssert",
"-d:debug -d:chronosDebug -d:chronosEventEngine=poll -d:useSysAssert -d:useGcAssert",
"-d:release",
]
let cfg =
" --styleCheck:usages --styleCheck:error" &
(if verbose: "" else: " --verbosity:0 --hints:off") &
" --skipParentCfg --skipUserCfg --outdir:build " &
quoteShell("--nimcache:build/nimcache/$projectName")
proc build(args, path: string) =
exec nimc & " " & lang & " " & cfg & " " & flags & " " & args & " " & path
proc run(args, path: string) =
build args, path
exec "build/" & path.splitPath[1]
task examples, "Build examples":
# Build book examples
for file in listFiles("docs/examples"):
if file.endsWith(".nim"):
build "--threads:on", file
task test, "Run all tests":
for args in testArguments:
run args, "tests/testall"
if (NimMajor, NimMinor) > (1, 6):
run args & " --mm:refc", "tests/testall"
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task test_libbacktrace, "test with libbacktrace":
var allArgs = @[
"-d:release --debugger:native -d:chronosStackTrace -d:nimStackTraceOverride --import:libbacktrace",
]
for args in allArgs:
run args, "tests/testall"
task docs, "Generate API documentation":
exec "mdbook build docs"
exec nimc & " doc " & "--git.url:https://github.com/status-im/nim-chronos --git.commit:master --outdir:docs/book/api --project chronos"