Port GetProcessCount(), KillProcesses(), and CleanupProcesses()....

base/process_util.h

 // Copyright (c) 2006-2008 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.
 
 // This file/namespace contains utility functions for enumerating, ending and
 // computing statistics of processes.
 
 #ifndef BASE_PROCESS_UTIL_H_
 #define BASE_PROCESS_UTIL_H_
 
 #include "base/basictypes.h"
 
-#ifdef OS_WIN
+#if defined(OS_WIN)
 #include <windows.h>
 #include <tlhelp32.h>
+#elif defined(OS_LINUX)
+#include <dirent.h>
+#include <limits.h>
+#include <sys/types.h>
 #endif
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/process.h"
 
 #if defined(OS_WIN)
 typedef PROCESSENTRY32 ProcessEntry;
 typedef IO_COUNTERS IoCounters;
 #elif defined(OS_POSIX)
-typedef int ProcessEntry;
+struct ProcessEntry {
+  int pid;
+  int ppid;
+  char szExeFile[NAME_MAX+1];
+};
+
 struct IoCounters {
   unsigned long long ReadOperationCount;
   unsigned long long WriteOperationCount;
   unsigned long long OtherOperationCount;
   unsigned long long ReadTransferCount;
   unsigned long long WriteTransferCount;
   unsigned long long OtherTransferCount;
 };
 #endif
 
@@ skipping 127 matching lines @@
   // that process's info if there is one, false otherwise.
   bool CheckForNextProcess();
 
   bool IncludeEntry();
 
   // Initializes a PROCESSENTRY32 data structure so that it's ready for
   // use with Process32First/Process32Next.
   void InitProcessEntry(ProcessEntry* entry);
 
   std::wstring executable_name_;
-#ifdef OS_WIN
+
+#if defined(OS_WIN)
   HANDLE snapshot_;
+  bool started_iteration_;
+#elif defined(OS_LINUX)
+  DIR *procfs_dir_;
+#elif defined(OS_MACOSX)
+  // probably kvm_t *kvmd_;
 #endif
-  bool started_iteration_;
+
   ProcessEntry entry_;
   const ProcessFilter* filter_;
 
   DISALLOW_EVIL_CONSTRUCTORS(NamedProcessIterator);
 };
 
 // Working Set (resident) memory usage broken down by
 // priv (private): These pages (kbytes) cannot be shared with any other process.
 // shareable:      These pages (kbytes) can be shared with other processes under
 //                 the right circumstances.
@@ skipping 105 matching lines @@
 // overflow. Has no effect if the OS doesn't provide the necessary facility.
 void EnableTerminationOnHeapCorruption();
 
 // If supported on the platform, and the user has sufficent rights, increase
 // the current process's scheduling priority to a high priority.
 void RaiseProcessToHighPriority();
 
 }  // namespace process_util
 
 #endif  // BASE_PROCESS_UTIL_H_