fix: breakpad use miniz

third_party/tracy/public/client/tracy_SPSCQueue.h

@@ -0,0 +1,148 @@
+/*
+Copyright (c) 2020 Erik Rigtorp <erik@rigtorp.se>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+ */
+
+#pragma once
+
+#include <atomic>
+#include <cassert>
+#include <cstddef>
+#include <stdexcept>
+#include <type_traits> // std::enable_if, std::is_*_constructible
+
+#include "../common/TracyAlloc.hpp"
+
+#if defined (_MSC_VER)
+#pragma warning(push)
+#pragma warning(disable:4324)
+#endif
+
+namespace tracy {
+
+template <typename T> class SPSCQueue {
+public:
+  explicit SPSCQueue(const size_t capacity)
+      : capacity_(capacity) {
+    capacity_++; // Needs one slack element
+    slots_ = (T*)tracy_malloc(sizeof(T) * (capacity_ + 2 * kPadding));
+
+    static_assert(alignof(SPSCQueue<T>) == kCacheLineSize, "");
+    static_assert(sizeof(SPSCQueue<T>) >= 3 * kCacheLineSize, "");
+    assert(reinterpret_cast<char *>(&readIdx_) -
+               reinterpret_cast<char *>(&writeIdx_) >=
+           static_cast<std::ptrdiff_t>(kCacheLineSize));
+  }
+
+  ~SPSCQueue() {
+    while (front()) {
+      pop();
+    }
+    tracy_free(slots_);
+  }
+
+  // non-copyable and non-movable
+  SPSCQueue(const SPSCQueue &) = delete;
+  SPSCQueue &operator=(const SPSCQueue &) = delete;
+
+  template <typename... Args>
+  void emplace(Args &&...args) noexcept(
+      std::is_nothrow_constructible<T, Args &&...>::value) {
+    static_assert(std::is_constructible<T, Args &&...>::value,
+                  "T must be constructible with Args&&...");
+    auto const writeIdx = writeIdx_.load(std::memory_order_relaxed);
+    auto nextWriteIdx = writeIdx + 1;
+    if (nextWriteIdx == capacity_) {
+      nextWriteIdx = 0;
+    }
+    while (nextWriteIdx == readIdxCache_) {
+      readIdxCache_ = readIdx_.load(std::memory_order_acquire);
+    }
+    new (&slots_[writeIdx + kPadding]) T(std::forward<Args>(args)...);
+    writeIdx_.store(nextWriteIdx, std::memory_order_release);
+  }
+
+  T *front() noexcept {
+    auto const readIdx = readIdx_.load(std::memory_order_relaxed);
+    if (readIdx == writeIdxCache_) {
+      writeIdxCache_ = writeIdx_.load(std::memory_order_acquire);
+      if (writeIdxCache_ == readIdx) {
+        return nullptr;
+      }
+    }
+    return &slots_[readIdx + kPadding];
+  }
+
+  void pop() noexcept {
+    static_assert(std::is_nothrow_destructible<T>::value,
+                  "T must be nothrow destructible");
+    auto const readIdx = readIdx_.load(std::memory_order_relaxed);
+    assert(writeIdx_.load(std::memory_order_acquire) != readIdx);
+    slots_[readIdx + kPadding].~T();
+    auto nextReadIdx = readIdx + 1;
+    if (nextReadIdx == capacity_) {
+      nextReadIdx = 0;
+    }
+    readIdx_.store(nextReadIdx, std::memory_order_release);
+  }
+
+  size_t size() const noexcept {
+    std::ptrdiff_t diff = writeIdx_.load(std::memory_order_acquire) -
+                          readIdx_.load(std::memory_order_acquire);
+    if (diff < 0) {
+      diff += capacity_;
+    }
+    return static_cast<size_t>(diff);
+  }
+
+  bool empty() const noexcept {
+      return writeIdx_.load(std::memory_order_acquire) ==
+          readIdx_.load(std::memory_order_acquire);
+  }
+
+  size_t capacity() const noexcept { return capacity_ - 1; }
+
+private:
+  static constexpr size_t kCacheLineSize = 64;
+
+  // Padding to avoid false sharing between slots_ and adjacent allocations
+  static constexpr size_t kPadding = (kCacheLineSize - 1) / sizeof(T) + 1;
+
+private:
+  size_t capacity_;
+  T *slots_;
+
+  // Align to cache line size in order to avoid false sharing
+  // readIdxCache_ and writeIdxCache_ is used to reduce the amount of cache
+  // coherency traffic
+  alignas(kCacheLineSize) std::atomic<size_t> writeIdx_ = {0};
+  alignas(kCacheLineSize) size_t readIdxCache_ = 0;
+  alignas(kCacheLineSize) std::atomic<size_t> readIdx_ = {0};
+  alignas(kCacheLineSize) size_t writeIdxCache_ = 0;
+
+  // Padding to avoid adjacent allocations to share cache line with
+  // writeIdxCache_
+  char padding_[kCacheLineSize - sizeof(SPSCQueue<T>::writeIdxCache_)];
+};
+} // namespace rigtorp
+
+#if defined (_MSC_VER)
+#pragma warning(pop)
+#endif