Adds trunk/talk folder of revision 359 from libjingles google code to

trunk/talk git-svn-id: http://webrtc.googlecode.com/svn/trunk@4318 4adac7df-926f-26a2-2b94-8c16560cd09d
2013-07-10 00:45:36 +00:00
parent 6aa6229953
commit 28e2075280
1067 changed files with 275209 additions and 0 deletions
--- a/talk/base/linuxfdwalk_unittest.cc
+++ b/talk/base/linuxfdwalk_unittest.cc
@@ -0,0 +1,92 @@
+/*
+ * libjingle
+ * Copyright 2009, Google Inc.
+ *
+ * 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.
+ *  3. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <set>
+#include <sstream>
+
+#include "talk/base/gunit.h"
+#include "talk/base/linuxfdwalk.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+static const int kArbitraryLargeFdNumber = 424;
+
+static void FdCheckVisitor(void *data, int fd) {
+  std::set<int> *fds = static_cast<std::set<int> *>(data);
+  EXPECT_EQ(1U, fds->erase(fd));
+}
+
+static void FdEnumVisitor(void *data, int fd) {
+  std::set<int> *fds = static_cast<std::set<int> *>(data);
+  EXPECT_TRUE(fds->insert(fd).second);
+}
+
+// Checks that the set of open fds is exactly the given list.
+static void CheckOpenFdList(std::set<int> fds) {
+  EXPECT_EQ(0, fdwalk(&FdCheckVisitor, &fds));
+  EXPECT_EQ(0U, fds.size());
+}
+
+static void GetOpenFdList(std::set<int> *fds) {
+  fds->clear();
+  EXPECT_EQ(0, fdwalk(&FdEnumVisitor, fds));
+}
+
+TEST(LinuxFdWalk, TestFdWalk) {
+  std::set<int> fds;
+  GetOpenFdList(&fds);
+  std::ostringstream str;
+  // I have observed that the open set when starting a test is [0, 6]. Leaked
+  // fds would change that, but so can (e.g.) running under a debugger, so we
+  // can't really do an EXPECT. :(
+  str << "File descriptors open in test executable:";
+  for (std::set<int>::const_iterator i = fds.begin(); i != fds.end(); ++i) {
+    str << " " << *i;
+  }
+  LOG(LS_INFO) << str.str();
+  // Open some files.
+  int fd1 = open("/dev/null", O_RDONLY);
+  EXPECT_LE(0, fd1);
+  int fd2 = open("/dev/null", O_WRONLY);
+  EXPECT_LE(0, fd2);
+  int fd3 = open("/dev/null", O_RDWR);
+  EXPECT_LE(0, fd3);
+  int fd4 = dup2(fd3, kArbitraryLargeFdNumber);
+  EXPECT_LE(0, fd4);
+  EXPECT_TRUE(fds.insert(fd1).second);
+  EXPECT_TRUE(fds.insert(fd2).second);
+  EXPECT_TRUE(fds.insert(fd3).second);
+  EXPECT_TRUE(fds.insert(fd4).second);
+  CheckOpenFdList(fds);
+  EXPECT_EQ(0, close(fd1));
+  EXPECT_EQ(0, close(fd2));
+  EXPECT_EQ(0, close(fd3));
+  EXPECT_EQ(0, close(fd4));
+}