Merge pull request #109 from kategory/paco-ayo

Add IO Monad

Author: ffgiraldez

LICENSE

@@ -277,3 +277,210 @@ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
+
+Duration.kt license follows:
+
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kategory/src/main/kotlin/kategory/effects/Duration.kt

@@ -0,0 +1,54 @@
+package kategory
+
+import java.util.concurrent.TimeUnit
+
+data class Duration(val amount: Long, val timeUnit: TimeUnit) {
+    val nanoseconds: Long by lazy { timeUnit.toNanos(amount) }
+
+    companion object {
+        // Actually limited to 9223372036854775807 days, so unless you are very patient, it is unlimited ;-)
+        @JvmStatic val INFINITE = Duration(amount = Long.MAX_VALUE, timeUnit = TimeUnit.DAYS)
+    }
+}
+
+val Long.days: Duration
+    get() = Duration(this, TimeUnit.DAYS)
+
+val Int.days: Duration
+    get() = Duration(this.toLong(), TimeUnit.DAYS)
+
+val Long.hours: Duration
+    get() = Duration(this, TimeUnit.HOURS)
+
+val Int.hours: Duration
+    get() = Duration(this.toLong(), TimeUnit.HOURS)
+
+val Long.microseconds: Duration
+    get() = Duration(this, TimeUnit.MICROSECONDS)
+
+val Int.microseconds: Duration
+    get() = Duration(this.toLong(), TimeUnit.MICROSECONDS)
+
+val Long.minutes: Duration
+    get() = Duration(this, TimeUnit.MINUTES)
+
+val Int.minutes: Duration
+    get() = Duration(this.toLong(), TimeUnit.MINUTES)
+
+val Long.milliseconds: Duration
+    get() = Duration(this, TimeUnit.MILLISECONDS)
+
+val Int.milliseconds: Duration
+    get() = Duration(this.toLong(), TimeUnit.MILLISECONDS)
+
+val Long.nanoseconds: Duration
+    get() = Duration(this, TimeUnit.NANOSECONDS)
+
+val Int.nanoseconds: Duration
+    get() = Duration(this.toLong(), TimeUnit.NANOSECONDS)
+
+val Long.seconds: Duration
+    get() = Duration(this, TimeUnit.SECONDS)
+
+val Int.seconds: Duration
+    get() = Duration(this.toLong(), TimeUnit.SECONDS)