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Merge pull request #3247 from djspiewak/release/3.4.0-major
Backport merge 3.4.0 into major branch
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| /* | ||
| * Copyright 2020-2022 Typelevel | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * 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. | ||
| */ | ||
|
|
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| package cats.effect | ||
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| import scala.scalajs.js | ||
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| private final class ArrayStack[A <: AnyRef](val buffer: js.Array[A]) extends AnyVal { | ||
|
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| @inline def init(bound: Int): Unit = { | ||
| val _ = bound | ||
| () | ||
| } | ||
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| @inline def push(a: A): Unit = { | ||
| buffer.push(a) | ||
| () | ||
| } | ||
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| @inline def pop(): A = { | ||
| buffer.pop() | ||
| } | ||
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| @inline def peek(): A = buffer(buffer.length - 1) | ||
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| @inline def isEmpty(): Boolean = buffer.length == 0 | ||
|
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| // to allow for external iteration | ||
| @inline def unsafeBuffer(): js.Array[A] = buffer | ||
| @inline def unsafeIndex(): Int = buffer.length | ||
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| @inline def invalidate(): Unit = { | ||
| buffer.length = 0 // javascript is crazy! | ||
| } | ||
|
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| } | ||
|
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| private object ArrayStack { | ||
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| @inline def apply[A <: AnyRef](size: Int): ArrayStack[A] = { | ||
| val _ = size | ||
| apply() | ||
| } | ||
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| @inline def apply[A <: AnyRef](): ArrayStack[A] = { | ||
| new ArrayStack(new js.Array[A]) | ||
| } | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| /* | ||
| * Copyright 2020-2022 Typelevel | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * 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. | ||
| */ | ||
|
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| package cats.effect | ||
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| import scala.scalajs.js | ||
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| private object ByteStack { | ||
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| type T = js.Array[Int] | ||
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| @inline final def create(initialMaxOps: Int): js.Array[Int] = { | ||
| val _ = initialMaxOps | ||
| js.Array(0) | ||
| } | ||
|
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| @inline final def growIfNeeded(stack: js.Array[Int], count: Int): js.Array[Int] = { | ||
| if ((1 + ((count + 1) >> 3)) < stack.length) { | ||
| stack | ||
| } else { | ||
| stack.push(0) | ||
| stack | ||
| } | ||
| } | ||
|
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| @inline final def push(stack: js.Array[Int], op: Byte): js.Array[Int] = { | ||
| val c = stack(0) // current count of elements | ||
| val use = growIfNeeded(stack, c) // alias so we add to the right place | ||
| val s = (c >> 3) + 1 // current slot in `use` | ||
| val shift = (c & 7) << 2 // BEGIN MAGIC | ||
| use(s) = (use(s) & ~(0xffffffff << shift)) | (op << shift) // END MAGIC | ||
| use(0) += 1 // write the new count | ||
| use | ||
| } | ||
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| @inline final def size(stack: js.Array[Int]): Int = | ||
| stack(0) | ||
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| @inline final def isEmpty(stack: js.Array[Int]): Boolean = | ||
| stack(0) < 1 | ||
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| @inline final def read(stack: js.Array[Int], pos: Int): Byte = { | ||
| if (pos < 0 || pos >= stack(0)) throw new ArrayIndexOutOfBoundsException() | ||
| ((stack((pos >> 3) + 1) >>> ((pos & 7) << 2)) & 0x0000000f).toByte | ||
| } | ||
|
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| @inline final def peek(stack: js.Array[Int]): Byte = { | ||
| val c = stack(0) - 1 | ||
| if (c < 0) throw new ArrayIndexOutOfBoundsException() | ||
| ((stack((c >> 3) + 1) >>> ((c & 7) << 2)) & 0x0000000f).toByte | ||
| } | ||
|
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| @inline final def pop(stack: js.Array[Int]): Byte = { | ||
| val op = peek(stack) | ||
| stack(0) -= 1 | ||
| op | ||
| } | ||
| } |
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31 changes: 31 additions & 0 deletions
31
core/js/src/main/scala/cats/effect/metrics/JsCpuStarvationMetrics.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| /* | ||
| * Copyright 2020-2022 Typelevel | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * 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. | ||
| */ | ||
|
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| package cats.effect.metrics | ||
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| import cats.effect.IO | ||
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| import scala.concurrent.duration.FiniteDuration | ||
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| private[effect] class JsCpuStarvationMetrics extends CpuStarvationMetrics { | ||
| override def incCpuStarvationCount: IO[Unit] = IO.unit | ||
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| override def recordClockDrift(drift: FiniteDuration): IO[Unit] = IO.unit | ||
| } | ||
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| private[effect] object JsCpuStarvationMetrics { | ||
| private[effect] def apply(): CpuStarvationMetrics = new JsCpuStarvationMetrics | ||
| } |
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