Correct compilation warning.

 1) Modify src/common/mac/macho_walker.cc to remove a signed  vs unsigned comparison.

 2) Replace mktemp in test using AutoTmpDir that has been moved from client/mac/tests to common/tests.
Review URL: http://breakpad.appspot.com/328001

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@888 4c0a9323-5329-0410-9bdc-e9ce6186880e

1 files changed, 98 insertions, 0 deletions

diff --git a/src/common/tests/auto_tempdir.h b/src/common/tests/auto_tempdir.h
new file mode 100644
index 00000000..e78d7391
--- /dev/null
+++ b/src/common/tests/auto_tempdir.h
@@ -0,0 +1,98 @@
+// Copyright (c) 2011, 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.
+
+// Utility class for creating a temporary directory for unit tests
+// that is deleted in the destructor.
+#ifndef GOOGLE_BREAKPAD_COMMON_TESTS_AUTO_TEMPDIR
+#define GOOGLE_BREAKPAD_COMMON_TESTS_AUTO_TEMPDIR
+
+#include <dirent.h>
+#include <sys/types.h>
+
+#include <string>
+
+#include "breakpad_googletest_includes.h"
+
+#if !defined(__ANDROID__)
+#define TEMPDIR "/tmp"
+#else
+#define TEMPDIR "/data/local/tmp"
+#endif
+
+namespace google_breakpad {
+
+class AutoTempDir {
+ public:
+  AutoTempDir() {
+    char temp_dir[] = TEMPDIR "/breakpad.XXXXXXXXXX";
+    EXPECT_TRUE(mkdtemp(temp_dir) != NULL);
+    path_.assign(temp_dir);
+  }
+
+  ~AutoTempDir() {
+    DeleteRecursively(path_);
+  }
+
+ const std::string& path() {
+   return path_;
+ }
+
+ private:
+  void DeleteRecursively(const std::string& path) {
+    // First remove any files in the dir
+    DIR* dir = opendir(path.c_str());
+    if (!dir)
+      return;
+
+    dirent* entry;
+    while ((entry = readdir(dir)) != NULL) {
+      if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
+        continue;
+      std::string entry_path = path + "/" + entry->d_name;
+      struct stat stats;
+      EXPECT_TRUE(lstat(entry_path.c_str(), &stats) == 0);
+      if (S_ISDIR(stats.st_mode))
+        DeleteRecursively(entry_path);
+      else
+        EXPECT_TRUE(unlink(entry_path.c_str()) == 0);
+    }
+    EXPECT_TRUE(closedir(dir) == 0);
+    EXPECT_TRUE(rmdir(path.c_str()) == 0);
+  }
+
+  // prevent copy construction and assignment
+  AutoTempDir(const AutoTempDir&);
+  AutoTempDir& operator=(const AutoTempDir&);
+
+  std::string path_;
+};
+
+}  // namespace google_breakpad
+
+#endif  // GOOGLE_BREAKPAD_COMMON_TESTS_AUTO_TEMPDIR