default threads on (#19368)

* default threads on

* make rst gcsafe

* ignore threads option for nimscript

* threads off

* use createShared for threads

* test without threads

* avr threds off

* avr threads off

* async threads off

* threads off

* fix ci

* restore option

* make CI pleased

* fix ic tests

* Update config.nims

* add changelog

* Update changelog.md

Co-authored-by: konsumlamm <44230978+konsumlamm@users.noreply.github.com>

Co-authored-by: konsumlamm <44230978+konsumlamm@users.noreply.github.com>

changelog.md

@@ -26,6 +26,8 @@ becomes an alias for `addr`.
 
 - The `gc:v2` option is removed.
 
+- The `threads:on` option becomes the default.
+
 ## Standard library additions and changes
 
 [//]: # "Changes:"

config/nim.cfg

@@ -17,6 +17,8 @@ cc = gcc
 hint[LineTooLong]=off
 #hint[XDeclaredButNotUsed]=off
 
+threads:on
+
 # Examples of how to setup a cross-compiler:
 # Nim can target architectures and OSes different than the local host
 # Syntax: <arch>.<os>.gcc.exe = "<compiler executable>"

testament/categories.nim

@@ -59,10 +59,10 @@ proc runBasicDLLTest(c, r: var TResults, cat: Category, options: string) =
   var test2 = makeTest("tests/dll/server.nim", options & " --threads:on" & rpath, cat)
   test2.spec.action = actionCompile
   testSpec c, test2
-  var test3 = makeTest("lib/nimhcr.nim", options & " --outdir:tests/dll" & rpath, cat)
+  var test3 = makeTest("lib/nimhcr.nim", options & " --threads:off --outdir:tests/dll" & rpath, cat)
   test3.spec.action = actionCompile
   testSpec c, test3
-  var test4 = makeTest("tests/dll/visibility.nim", options & " --app:lib" & rpath, cat)
+  var test4 = makeTest("tests/dll/visibility.nim", options & " --threads:off --app:lib" & rpath, cat)
   test4.spec.action = actionCompile
   testSpec c, test4
 
@@ -77,13 +77,13 @@ proc runBasicDLLTest(c, r: var TResults, cat: Category, options: string) =
     defer: putEnv(libpathenv, libpath)
 
   testSpec r, makeTest("tests/dll/client.nim", options & " --threads:on" & rpath, cat)
-  testSpec r, makeTest("tests/dll/nimhcr_unit.nim", options & rpath, cat)
+  testSpec r, makeTest("tests/dll/nimhcr_unit.nim", options & " --threads:off" & rpath, cat)
-  testSpec r, makeTest("tests/dll/visibility.nim", options & rpath, cat)
+  testSpec r, makeTest("tests/dll/visibility.nim", options & " --threads:off" & rpath, cat)
 
   if "boehm" notin options:
     # force build required - see the comments in the .nim file for more details
     var hcri = makeTest("tests/dll/nimhcr_integration.nim",
-                                   options & " --forceBuild --hotCodeReloading:on" & rpath, cat)
+                                   options & " --threads:off --forceBuild --hotCodeReloading:on" & rpath, cat)
     let nimcache = nimcacheDir(hcri.name, hcri.options, getTestSpecTarget())
     let cmd = prepareTestCmd(hcri.spec.getCmd, hcri.name,
                                 hcri.options, nimcache, getTestSpecTarget())

tests/avr/thello.nim

@@ -1,5 +1,5 @@
 discard """
-  cmd: "nim c --compileOnly --os:standalone --exceptions:quirky -d:noSignalHandler -d:danger $file"
+  cmd: "nim c --compileOnly --os:standalone --exceptions:quirky -d:noSignalHandler -d:danger --threads:off $file"
   action: "compile"
 """
 

tests/destructor/trecursive.nim

@@ -47,7 +47,7 @@ proc `=destroy`(x: var MyObject) =
 proc `=`(x: var MyObject, y: MyObject) {.error.}
 
 proc newMyObject(i: int): MyObject = 
-  result.p = create(int)
+  result.p = createShared(int)
   result.p[] = i
 
 proc test: seq[MyObject] = 

tests/ic/config.nims

@@ -0,0 +1,2 @@
+when defined(windows):
+  --threads:off

tests/manyloc/standalone2/tavr.nim.cfg

@@ -2,3 +2,4 @@
 --cpu:avr
 --os:standalone
 --compileOnly
+--threads:off

tests/niminaction/Chapter7/Tweeter/src/tweeter.nim

@@ -1,5 +1,6 @@
 discard """
 action: compile
+matrix: "--threads:off"
 """
 
 import asyncdispatch, times

tests/stdlib/ttasks.nim

@@ -1,6 +1,6 @@
 discard """
   targets: "c cpp"
-  matrix: "--gc:orc"
+  matrix: "--gc:orc --threads:off"
 """
 
 import std/[tasks, strformat]

tests/system/tgcnone.nim

@@ -1,5 +1,5 @@
 discard """
-  matrix: "--gc:none -d:useMalloc"
+  matrix: "--gc:none -d:useMalloc --threads:off"
 """
 # bug #15617
 let x = 4