Close unneeded descriptors on NativeProcess instantiation

library/process/src/nativeMain/kotlin/io/matthewnelson/kmp/process/internal/stdio/StdioHandle.kt

@@ -47,26 +47,36 @@ internal class StdioHandle private constructor(
 
         // This is invoked once and only once upon NativeProcess
         // instantiation (after fork occurs). We can do some descriptor
-        // clean up here and close unneeded pipe ends which were duped
+        // clean up here and close unneeded descriptors which were duped
         // in the child process and remain open over there.
-        if (stdoutFD is StdioDescriptor.Pipe) {
-            try {
-                stdoutFD.write.close()
-            } catch (_: IOException) {}
-        }
-
-        if (stderrFD is StdioDescriptor.Pipe) {
-            try {
-                stderrFD.write.close()
-            } catch (_: IOException) {}
-        }
+        try {
+            if (stdinFD is StdioDescriptor.Pipe) {
+                // Leave write end open here in parent
+                stdinFD.read
+            } else {
+                stdinFD
+            }.close()
+        } catch (_: IOException) {}
 
-        if (stdinFD !is StdioDescriptor.Pipe) return@Instance null
+        try {
+            if (stdoutFD is StdioDescriptor.Pipe) {
+                // Leave read end open here in parent
+                stdoutFD.write
+            } else {
+                stdoutFD
+            }.close()
+        } catch (_: IOException) {}
 
         try {
-            stdinFD.read.close()
+            if (stderrFD is StdioDescriptor.Pipe) {
+                // Leave read end open here in parent
+                stderrFD.write
+            } else {
+                stdoutFD
+            }.close()
         } catch (_: IOException) {}
 
+        if (stdinFD !is StdioDescriptor.Pipe) return@Instance null
         if (stdinFD.isClosed) return@Instance null
 
         WriteStream.of(stdinFD)