| 65 | } |
| 66 | |
| 67 | bool MallocAllocator::allocateNonContiguousWithoutRetry( |
| 68 | const SizeMix& sizeMix, |
| 69 | Allocation& out) { |
| 70 | freeNonContiguous(out); |
| 71 | if (sizeMix.totalPages == 0) { |
| 72 | return true; |
| 73 | } |
| 74 | const auto totalBytes = AllocationTraits::pageBytes(sizeMix.totalPages); |
| 75 | if (testingHasInjectedFailure(InjectedFailure::kCap) || |
| 76 | !incrementUsage(totalBytes)) { |
| 77 | const auto errorMsg = fmt::format( |
| 78 | "Exceeded memory allocator limit when allocating {} new pages" |
| 79 | ", the memory allocator capacity is {}, the allocated bytes is {}", |
| 80 | sizeMix.totalPages, |
| 81 | succinctBytes(capacity_), |
| 82 | succinctBytes(allocatedBytes_)); |
| 83 | BOLT_MEM_LOG_EVERY_MS(WARNING, 1000) << errorMsg; |
| 84 | setAllocatorFailureMessage(errorMsg); |
| 85 | return false; |
| 86 | } |
| 87 | |
| 88 | std::vector<void*> buffers; |
| 89 | buffers.reserve(sizeMix.numSizes); |
| 90 | for (int32_t i = 0; i < sizeMix.numSizes; ++i) { |
| 91 | MachinePageCount numSizeClassPages = |
| 92 | sizeMix.sizeCounts[i] * sizeClassSizes_[sizeMix.sizeIndices[i]]; |
| 93 | void* ptr = nullptr; |
| 94 | // Trigger allocation failure by skipping malloc |
| 95 | if (!testingHasInjectedFailure(InjectedFailure::kAllocate)) { |
| 96 | stats_.recordAllocate( |
| 97 | AllocationTraits::pageBytes(sizeClassSizes_[sizeMix.sizeIndices[i]]), |
| 98 | sizeMix.sizeCounts[i], |
| 99 | [&]() { |
| 100 | ptr = ::malloc( |
| 101 | AllocationTraits::pageBytes(numSizeClassPages)); // NOLINT |
| 102 | }); |
| 103 | } |
| 104 | if (ptr == nullptr) { |
| 105 | // Failed to allocate memory from memory. |
| 106 | const auto errorMsg = fmt::format( |
| 107 | "Malloc failed to allocate {} of memory while allocating for " |
| 108 | "non-contiguous allocation of {} pages", |
| 109 | succinctBytes(AllocationTraits::pageBytes(numSizeClassPages)), |
| 110 | sizeMix.totalPages); |
| 111 | BOLT_MEM_LOG(WARNING) << errorMsg; |
| 112 | setAllocatorFailureMessage(errorMsg); |
| 113 | break; |
| 114 | } |
| 115 | buffers.push_back(ptr); |
| 116 | out.append(reinterpret_cast<uint8_t*>(ptr), numSizeClassPages); // NOLINT |
| 117 | } |
| 118 | |
| 119 | if (buffers.size() != sizeMix.numSizes) { |
| 120 | // Failed to allocate memory using malloc. Free any malloced pages and |
| 121 | // return false. |
| 122 | for (auto* buffer : buffers) { |
| 123 | ::free(buffer); |
| 124 | } |
nothing calls this directly
no test coverage detected