remove sync(Weave) before exit and allow failure on OSX) (#52)

* remove sync(Weave) before exit and allow failure on OSX)

* Disable tlsEmulation

Author: mratsim

.travis.yml

@@ -39,6 +39,10 @@ matrix:
         - ARCH=amd64
         - CHANNEL=devel
       compiler: clang
+  allow_failures:
+    # Also ignore OSX, due to very long build time
+    # and strange issues: https://github.com/mratsim/weave/issues/51
+    - os: osx
   fast_finish: true
 
 before_install:

README.md

@@ -1,5 +1,5 @@
 # Weave, a state-of-the-art multithreading runtime
-[![Build Status: Travis](https://img.shields.io/travis/com/mratsim/weave?label=Travis%20%28Linux%2FMac%20-%20x86_64%2FARM64%29)](https://travis-ci.com/mratsim/weave)
+[![Build Status: Travis](https://img.shields.io/travis/com/mratsim/weave?label=Travis%20%28Linux%20x86_64%2FARM64%20-%20OSX%20optional%29)](https://travis-ci.com/mratsim/weave)
 [![Build Status: Azure](https://img.shields.io/azure-devops/build/numforge/69bc2700-4fa7-4292-a0b3-331ddb721640/2?label=Azure%20%28C%2FC%2B%2B%20Linux%2032-bit%2F64-bit%29)](https://dev.azure.com/numforge/Weave/_build?definitionId=2&branchName=master)
 [![License: Apache](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
 [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT)

weave.cfg

@@ -0,0 +1,4 @@
+# Nim has tlsEmulation enabled on OSX
+# instead of using the C compiler TLS.
+# This was due to old iOS versions requiring it.
+--tlsEmulation:off

weave/config.nim

@@ -7,12 +7,15 @@
 
 import strutils
 
-# With C++ we need C++11
+# Platform support
 # ----------------------------------------------------------------------------------
 
 when defined(cpp):
   {.passC:"-std=c++11".}
 
+when defined(tlsEmulation):
+  {.warning: "TLS Emulation (default on MacOS due to old iOS requiring it) is not supported. Please run Weave tests to ensure some degree of correctness.".}
+
 # Static configuration & compile-time options
 # ----------------------------------------------------------------------------------
 

weave/parallel_tasks.nim

@@ -167,11 +167,8 @@ when isMainModule:
       echo "Sanity check 1: Printing 123456 654321 in parallel"
 
       init(Weave)
-
       spawn display_int(123456)
       spawn display_int(654321)
-
-      sync(Weave)
       exit(Weave)
 
     main()
@@ -192,10 +189,7 @@ when isMainModule:
       echo "Sanity check 2: fib(20)"
 
       init(Weave)
-
       let f = async_fib(20)
-
-      sync(Weave)
       exit(Weave)
 
       echo f