Move SimpleStringDictionary from common/mac/ to just common/.

This also cleans up some things like the file name, trailing whitespace,
and making the test use gtest instead of sentest, since there's nothing
Mac specific about this.

BUG=https://code.google.com/p/chromium/issues/detail?id=77656

Review URL: https://breakpad.appspot.com/561003

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1154 4c0a9323-5329-0410-9bdc-e9ce6186880e

1 files changed, 129 insertions, 0 deletions

diff --git a/src/common/simple_string_dictionary.cc b/src/common/simple_string_dictionary.cc
new file mode 100644
index 00000000..f28ee9ef
--- /dev/null
+++ b/src/common/simple_string_dictionary.cc
@@ -0,0 +1,129 @@
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * 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.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// 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
+// OWNER 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.
+
+#include <assert.h>
+
+#include "common/simple_string_dictionary.h"
+
+namespace google_breakpad {
+
+//==============================================================================
+const KeyValueEntry *SimpleStringDictionary::GetEntry(int i) const {
+  return (i >= 0 && i < MAX_NUM_ENTRIES) ? &entries_[i] : NULL;
+}
+
+//==============================================================================
+int SimpleStringDictionary::GetCount() const {
+  int count = 0;
+  for (int i = 0; i < MAX_NUM_ENTRIES; ++i) {
+    if (entries_[i].IsActive() ) {
+      ++count;
+    }
+  }
+
+  return count;
+}
+
+//==============================================================================
+const char *SimpleStringDictionary::GetValueForKey(const char *key) const {
+  assert(key);
+  if (!key)
+    return NULL;
+
+  for (int i = 0; i < MAX_NUM_ENTRIES; ++i) {
+    const KeyValueEntry &entry = entries_[i];
+    if (entry.IsActive() && !strcmp(entry.GetKey(), key)) {
+      return entry.GetValue();
+    }
+  }
+
+  return NULL;
+}
+
+//==============================================================================
+void SimpleStringDictionary::SetKeyValue(const char *key,
+                                         const char *value) {
+  if (!value) {
+    RemoveKey(key);
+    return;
+  }
+
+  // key must not be NULL
+  assert(key);
+  if (!key)
+    return;
+
+  // key must not be empty string
+  assert(key[0] != '\0');
+  if (key[0] == '\0')
+    return;
+
+  int free_index = -1;
+
+  // check if key already exists
+  for (int i = 0; i < MAX_NUM_ENTRIES; ++i) {
+    KeyValueEntry &entry = entries_[i];
+
+    if (entry.IsActive()) {
+      if (!strcmp(entry.GetKey(), key)) {
+        entry.SetValue(value);
+        return;
+      }
+    } else {
+      // Make a note of an empty slot
+      if (free_index == -1) {
+        free_index = i;
+      }
+    }
+  }
+
+  // check if we've run out of space
+  assert(free_index != -1);
+
+  // Put new key into an empty slot (if found)
+  if (free_index != -1) {
+    entries_[free_index].SetKeyValue(key, value);
+  }
+}
+
+//==============================================================================
+void SimpleStringDictionary::RemoveKey(const char *key) {
+  assert(key);
+  if (!key)
+    return;
+
+  for (int i = 0; i < MAX_NUM_ENTRIES; ++i) {
+    if (!strcmp(entries_[i].GetKey(), key)) {
+      entries_[i].Clear();
+      return;
+    }
+  }
+}
+
+}  // namespace google_breakpad