ucx: test/util_allocator.h@7df0bcaecffa (annotated)

test/util_allocator.h@7df0bcaecffa (annotated)

test/util_allocator.h

Tue, 04 Oct 2022 19:25:07 +0200

author: Mike Becker <universe@uap-core.de>
date: Tue, 04 Oct 2022 19:25:07 +0200
changeset 591: 7df0bcaecffa
parent 571: f83583a0bbac
child 628: 1e2be40f0cb5
permissions: -rw-r--r--

fix over-optimization of strstr

1. it's actually less performant to frequently read bytes
from an array instead of using the native word length
2. the SBO buffer should be local and not static to allow
multi-threading usage

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
  * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *   1. Redistributions of source code must retain the above copyright
  *      notice, this list of conditions and the following disclaimer.
  *
  *   2. Redistributions in binary form must reproduce the above copyright
  *      notice, this list of conditions and the following disclaimer in the
  *      documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #ifndef UCX_UTIL_ALLOCATOR_H
 #define UCX_UTIL_ALLOCATOR_H
 #include "cx/allocator.h"
 #include <set>
 struct CxTestingAllocator : public CxAllocator {
     /**
      * Total number of all allocations (malloc, calloc, realloc).
      * A realloc() does only count when the memory has to be moved.
      */
     unsigned alloc_total = 0;
     /**
      * Number of failed allocations (malloc, calloc, realloc).
      */
     unsigned alloc_failed = 0;
     /**
      * Total number of freed pointers.
      * A reallocation also counts as a free when the memory has to be moved.
      */
     unsigned free_total = 0;
     /**
      * Number of failed free invocations.
      * A free() is considered failed, if it has not been performed on tracked memory.
      */
     unsigned free_failed = 0;
     /**
      * The set of tracked memory blocks.
      */
     std::set<void *> tracked;
     /**
      * Constructs a new testing allocator.
      */
     CxTestingAllocator();
     /**
      * Verifies that this allocator has been used.
      *
      * @return true if any allocation was attempted using this allocator
      */
     [[nodiscard]] bool used() const;
     /**
      * Verifies that all allocated memory blocks are freed and no free occurred twice.
      *
      * @return true iff all tracked allocations / deallocations were valid
      */
     [[nodiscard]] bool verify() const;
 };
 #endif /* UCX_UTIL_ALLOCATOR_H */

Mercurial > hg > ucx / annotate

test/util_allocator.h@7df0bcaecffa (annotated)

test/util_allocator.h