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Issue 6672070: Move the remaining files in chrome\common to content\common. (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 9 years, 9 months ago
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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "chrome/common/set_process_title.h"
6
7 #include "base/command_line.h"
8 #include "base/file_path.h"
9 #include "base/file_util.h"
10 #include "base/string_util.h"
11 #include "build/build_config.h"
12
13 #if defined(OS_POSIX)
14 #include <limits.h>
15 #include <stdlib.h>
16 #include <unistd.h>
17 #endif
18
19 #if defined(OS_LINUX)
20 #include <sys/prctl.h>
21
22 // Linux/glibc doesn't natively have setproctitle().
23 #include "chrome/common/set_process_title_linux.h"
24 #endif
25
26 #if defined(OS_POSIX) && !defined(OS_MACOSX)
27
28 void SetProcessTitleFromCommandLine(char** main_argv) {
29 // Build a single string which consists of all the arguments separated
30 // by spaces. We can't actually keep them separate due to the way the
31 // setproctitle() function works.
32 std::string title;
33 bool have_argv0 = false;
34
35 #if defined(OS_LINUX)
36 if (main_argv)
37 setproctitle_init(main_argv);
38
39 // In Linux we sometimes exec ourselves from /proc/self/exe, but this makes us
40 // show up as "exe" in process listings. Read the symlink /proc/self/exe and
41 // use the path it points at for our process title. Note that this is only for
42 // display purposes and has no TOCTTOU security implications.
43 FilePath target;
44 FilePath self_exe("/proc/self/exe");
45 if (file_util::ReadSymbolicLink(self_exe, &target)) {
46 have_argv0 = true;
47 title = target.value();
48 // If the binary has since been deleted, Linux appends " (deleted)" to the
49 // symlink target. Remove it, since this is not really part of our name.
50 const std::string kDeletedSuffix = " (deleted)";
51 if (EndsWith(title, kDeletedSuffix, true))
52 title.resize(title.size() - kDeletedSuffix.size());
53 #if defined(PR_SET_NAME)
54 // If PR_SET_NAME is available at compile time, we try using it. We ignore
55 // any errors if the kernel does not support it at runtime though. When
56 // available, this lets us set the short process name that shows when the
57 // full command line is not being displayed in most process listings.
58 prctl(PR_SET_NAME, FilePath(title).BaseName().value().c_str());
59 #endif
60 }
61 #endif
62
63 const CommandLine* command_line = CommandLine::ForCurrentProcess();
64 for (size_t i = 1; i < command_line->argv().size(); ++i) {
65 if (!title.empty())
66 title += " ";
67 title += command_line->argv()[i];
68 }
69 // Disable prepending argv[0] with '-' if we prepended it ourselves above.
70 setproctitle(have_argv0 ? "-%s" : "%s", title.c_str());
71 }
72
73 #else
74
75 // All other systems (basically Windows & Mac) have no need or way to implement
76 // this function.
77 void SetProcessTitleFromCommandLine(char** /* main_argv */) {
78 }
79
80 #endif
81
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