1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/toolkit/crashreporter/google-breakpad/src/common/mac/SimpleStringDictionary.mm Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,133 @@
1.4 +// Copyright (c) 2007, Google Inc.
1.5 +// All rights reserved.
1.6 +//
1.7 +// Redistribution and use in source and binary forms, with or without
1.8 +// modification, are permitted provided that the following conditions are
1.9 +// met:
1.10 +//
1.11 +// * Redistributions of source code must retain the above copyright
1.12 +// notice, this list of conditions and the following disclaimer.
1.13 +// * Redistributions in binary form must reproduce the above
1.14 +// copyright notice, this list of conditions and the following disclaimer
1.15 +// in the documentation and/or other materials provided with the
1.16 +// distribution.
1.17 +// * Neither the name of Google Inc. nor the names of its
1.18 +// contributors may be used to endorse or promote products derived from
1.19 +// this software without specific prior written permission.
1.20 +//
1.21 +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.22 +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.23 +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.24 +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
1.25 +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1.26 +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.27 +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1.28 +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
1.29 +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1.30 +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1.31 +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.32 +//
1.33 +// SimpleStringDictionary.mm
1.34 +// Simple string dictionary that does not allocate memory
1.35 +//
1.36 +
1.37 +#include <assert.h>
1.38 +
1.39 +#import "SimpleStringDictionary.h"
1.40 +
1.41 +namespace google_breakpad {
1.42 +
1.43 +//==============================================================================
1.44 +const KeyValueEntry *SimpleStringDictionary::GetEntry(int i) const {
1.45 + return (i >= 0 && i < MAX_NUM_ENTRIES) ? &entries_[i] : NULL;
1.46 +}
1.47 +
1.48 +//==============================================================================
1.49 +int SimpleStringDictionary::GetCount() const {
1.50 + int count = 0;
1.51 + for (int i = 0; i < MAX_NUM_ENTRIES; ++i) {
1.52 + if (entries_[i].IsActive() ) {
1.53 + ++count;
1.54 + }
1.55 + }
1.56 +
1.57 + return count;
1.58 +}
1.59 +
1.60 +//==============================================================================
1.61 +const char *SimpleStringDictionary::GetValueForKey(const char *key) const {
1.62 + assert(key);
1.63 + if (!key)
1.64 + return NULL;
1.65 +
1.66 + for (int i = 0; i < MAX_NUM_ENTRIES; ++i) {
1.67 + const KeyValueEntry &entry = entries_[i];
1.68 + if (entry.IsActive() && !strcmp(entry.GetKey(), key)) {
1.69 + return entry.GetValue();
1.70 + }
1.71 + }
1.72 +
1.73 + return NULL;
1.74 +}
1.75 +
1.76 +//==============================================================================
1.77 +void SimpleStringDictionary::SetKeyValue(const char *key,
1.78 + const char *value) {
1.79 + if (!value) {
1.80 + RemoveKey(key);
1.81 + return;
1.82 + }
1.83 +
1.84 + // key must not be NULL
1.85 + assert(key);
1.86 + if (!key)
1.87 + return;
1.88 +
1.89 + // key must not be empty string
1.90 + assert(key[0] != '\0');
1.91 + if (key[0] == '\0')
1.92 + return;
1.93 +
1.94 + int free_index = -1;
1.95 +
1.96 + // check if key already exists
1.97 + for (int i = 0; i < MAX_NUM_ENTRIES; ++i) {
1.98 + KeyValueEntry &entry = entries_[i];
1.99 +
1.100 + if (entry.IsActive()) {
1.101 + if (!strcmp(entry.GetKey(), key)) {
1.102 + entry.SetValue(value);
1.103 + return;
1.104 + }
1.105 + } else {
1.106 + // Make a note of an empty slot
1.107 + if (free_index == -1) {
1.108 + free_index = i;
1.109 + }
1.110 + }
1.111 + }
1.112 +
1.113 + // check if we've run out of space
1.114 + assert(free_index != -1);
1.115 +
1.116 + // Put new key into an empty slot (if found)
1.117 + if (free_index != -1) {
1.118 + entries_[free_index].SetKeyValue(key, value);
1.119 + }
1.120 +}
1.121 +
1.122 +//==============================================================================
1.123 +void SimpleStringDictionary::RemoveKey(const char *key) {
1.124 + assert(key);
1.125 + if (!key)
1.126 + return;
1.127 +
1.128 + for (int i = 0; i < MAX_NUM_ENTRIES; ++i) {
1.129 + if (!strcmp(entries_[i].GetKey(), key)) {
1.130 + entries_[i].Clear();
1.131 + return;
1.132 + }
1.133 + }
1.134 +}
1.135 +
1.136 +} // namespace google_breakpad
