Data commit

Task/Events/Nim/events-1.nim

@@ -0,0 +1,14 @@
+import posix
+
+var p: array[2, cint]
+discard pipe p
+if fork() > 0:
+  discard close p[0]
+  discard sleep 1
+  discard p[1].write(addr p[0], 1)
+  var x: cint = 0
+  discard wait (addr x)
+else:
+  discard close p[1]
+  discard p[0].read(addr p[1], 1)
+  echo "received signal from pipe"

Task/Events/Nim/events-2.nim

@@ -0,0 +1,30 @@
+import locks
+from os import sleep
+import times
+from strformat import fmt
+
+var
+  # condition variable which shared across threads
+  cond: Cond
+  lock: Lock
+  threadproc: Thread[void]
+
+proc waiting {.thread.} =
+  echo "spawned waiting proc"
+  let start = getTime()
+  cond.wait lock
+  echo fmt"thread ended after waiting {getTime() - start}."
+
+proc main =
+  initCond cond
+  initLock lock
+  threadproc.createThread waiting
+  echo "in main proc"
+  os.sleep 1000
+  echo "send signal/event notification"
+  signal cond
+  joinThread threadproc
+  deinitCond cond
+  deinitLock lock
+
+main()