From 4dd5793c22cc4e9991055adcb4e7163fbba8c246 Mon Sep 17 00:00:00 2001
From: "jam@chromium.org"
 <jam@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>
Date: Thu, 17 Mar 2011 06:06:12 +0000
Subject: Move the remaining files in chrome\common to content\common.

TBR=avi
Review URL: http://codereview.chromium.org/6672070

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@78516 0039d316-1c4b-4281-b951-d872f2087c98
---
 content/common/set_process_title.cc | 81 +++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 content/common/set_process_title.cc

(limited to 'content/common/set_process_title.cc')

diff --git a/content/common/set_process_title.cc b/content/common/set_process_title.cc
new file mode 100644
index 0000000..3602e94
--- /dev/null
+++ b/content/common/set_process_title.cc
@@ -0,0 +1,81 @@
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/common/set_process_title.h"
+
+#include "base/command_line.h"
+#include "base/file_path.h"
+#include "base/file_util.h"
+#include "base/string_util.h"
+#include "build/build_config.h"
+
+#if defined(OS_POSIX)
+#include <limits.h>
+#include <stdlib.h>
+#include <unistd.h>
+#endif
+
+#if defined(OS_LINUX)
+#include <sys/prctl.h>
+
+// Linux/glibc doesn't natively have setproctitle().
+#include "content/common/set_process_title_linux.h"
+#endif
+
+#if defined(OS_POSIX) && !defined(OS_MACOSX)
+
+void SetProcessTitleFromCommandLine(char** main_argv) {
+  // Build a single string which consists of all the arguments separated
+  // by spaces. We can't actually keep them separate due to the way the
+  // setproctitle() function works.
+  std::string title;
+  bool have_argv0 = false;
+
+#if defined(OS_LINUX)
+  if (main_argv)
+    setproctitle_init(main_argv);
+
+  // In Linux we sometimes exec ourselves from /proc/self/exe, but this makes us
+  // show up as "exe" in process listings. Read the symlink /proc/self/exe and
+  // use the path it points at for our process title. Note that this is only for
+  // display purposes and has no TOCTTOU security implications.
+  FilePath target;
+  FilePath self_exe("/proc/self/exe");
+  if (file_util::ReadSymbolicLink(self_exe, &target)) {
+    have_argv0 = true;
+    title = target.value();
+    // If the binary has since been deleted, Linux appends " (deleted)" to the
+    // symlink target. Remove it, since this is not really part of our name.
+    const std::string kDeletedSuffix = " (deleted)";
+    if (EndsWith(title, kDeletedSuffix, true))
+      title.resize(title.size() - kDeletedSuffix.size());
+#if defined(PR_SET_NAME)
+    // If PR_SET_NAME is available at compile time, we try using it. We ignore
+    // any errors if the kernel does not support it at runtime though. When
+    // available, this lets us set the short process name that shows when the
+    // full command line is not being displayed in most process listings.
+    prctl(PR_SET_NAME, FilePath(title).BaseName().value().c_str());
+#endif
+  }
+#endif
+
+  const CommandLine* command_line = CommandLine::ForCurrentProcess();
+  for (size_t i = 1; i < command_line->argv().size(); ++i) {
+    if (!title.empty())
+      title += " ";
+    title += command_line->argv()[i];
+  }
+  // Disable prepending argv[0] with '-' if we prepended it ourselves above.
+  setproctitle(have_argv0 ? "-%s" : "%s", title.c_str());
+}
+
+#else
+
+// All other systems (basically Windows & Mac) have no need or way to implement
+// this function.
+void SetProcessTitleFromCommandLine(char** /* main_argv */) {
+}
+
+#endif
+
-- 
cgit v1.1