src/compiler-rt/lib/tsan/rtl/tsan_ignoreset.cc

   1 //===-- tsan_ignoreset.cc -------------------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file is a part of ThreadSanitizer (TSan), a race detector.
  11 //
  12 //===----------------------------------------------------------------------===//
  13 #include "tsan_ignoreset.h"
  14
  15 namespace __tsan {
  16
  17 const uptr IgnoreSet::kMaxSize;
  18
  19 IgnoreSet::IgnoreSet()
  20     : size_() {
  21 }
  22
  23 void IgnoreSet::Add(u32 stack_id) {
  24   if (size_ == kMaxSize)
  25     return;
  26   for (uptr i = 0; i < size_; i++) {
  27     if (stacks_[i] == stack_id)
  28       return;
  29   }
  30   stacks_[size_++] = stack_id;
  31 }
  32
  33 void IgnoreSet::Reset() {
  34   size_ = 0;
  35 }
  36
  37 uptr IgnoreSet::Size() const {
  38   return size_;
  39 }
  40
  41 u32 IgnoreSet::At(uptr i) const {
  42   CHECK_LT(i, size_);
  43   CHECK_LE(size_, kMaxSize);
  44   return stacks_[i];
  45 }
  46
  47 }  // namespace __tsan