base/linux_util.h

   1 // Copyright (c) 2012 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 #ifndef BASE_LINUX_UTIL_H_
   6 #define BASE_LINUX_UTIL_H_
   7
   8 #include <stdint.h>
   9 #include <sys/types.h>
  10
  11 #include <string>
  12
  13 #include "base/base_export.h"
  14
  15 namespace base {
  16
  17 BASE_EXPORT extern const char kFindInodeSwitch[];
  18
  19 // This is declared here so the crash reporter can access the memory directly
  20 // in compromised context without going through the standard library.
  21 BASE_EXPORT extern char g_linux_distro[];
  22
  23 // Get the Linux Distro if we can, or return "Unknown".
  24 BASE_EXPORT std::string GetLinuxDistro();
  25
  26 // Set the Linux Distro string.
  27 BASE_EXPORT void SetLinuxDistro(const std::string& distro);
  28
  29 // Return the inode number for the UNIX domain socket |fd|.
  30 BASE_EXPORT bool FileDescriptorGetInode(ino_t* inode_out, int fd);
  31
  32 // Find the process which holds the given socket, named by inode number. If
  33 // multiple processes hold the socket, this function returns false.
  34 BASE_EXPORT bool FindProcessHoldingSocket(pid_t* pid_out, ino_t socket_inode);
  35
  36 // For a given process |pid|, look through all its threads and find the first
  37 // thread with /proc/[pid]/task/[thread_id]/syscall whose first N bytes matches
  38 // |expected_data|, where N is the length of |expected_data|.
  39 // Returns the thread id or -1 on error.  If |syscall_supported| is
  40 // set to false the kernel does not support syscall in procfs.
  41 BASE_EXPORT pid_t FindThreadIDWithSyscall(pid_t pid,
  42                                           const std::string& expected_data,
  43                                           bool* syscall_supported);
  44
  45 }  // namespace base
  46
  47 #endif  // BASE_LINUX_UTIL_H_