# HG changeset patch
# User John W. Eaton <jwe@octave.org>
# Date 1463637004 14400
# Node ID a99c2407f930f669d67a5f44cd863fb180f2eb68
# Parent  ab6c639f0678a6cc85e9adef4c99d396f93db4fb
use namespace for lo-sysdep.h functions

* lo-sysdep.h, lo-sysdep.cc:  Put octave_getcwd, octave_chdir, and
octave_popen2 in namespace octave::sys.  Change all uses.

diff -r ab6c639f0678 -r a99c2407f930 liboctave/system/lo-sysdep.cc
--- a/liboctave/system/lo-sysdep.cc	Thu May 19 01:33:06 2016 -0400
+++ b/liboctave/system/lo-sysdep.cc	Thu May 19 01:50:04 2016 -0400
@@ -45,105 +45,111 @@
 #include "str-vec.h"
 #include "oct-locbuf.h"
 
-std::string
-octave_getcwd (void)
+namespace octave
 {
-  std::string retval;
+  namespace sys
+  {
+    std::string
+    getcwd (void)
+    {
+      std::string retval;
 
-  // Using the gnulib getcwd module ensures that we have a getcwd that
-  // will allocate a buffer as large as necessary if buf and size are
-  // both 0.
-
-  char *tmp = gnulib::getcwd (0, 0);
+      // Using the gnulib getcwd module ensures that we have a getcwd that
+      // will allocate a buffer as large as necessary if buf and size are
+      // both 0.
 
-  if (! tmp)
-    (*current_liboctave_error_handler) ("unable to find current directory");
+      char *tmp = gnulib::getcwd (0, 0);
 
-  retval = tmp;
-  free (tmp);
+      if (! tmp)
+        (*current_liboctave_error_handler) ("unable to find current directory");
+
+      retval = tmp;
+      free (tmp);
 
-  return retval;
-}
+      return retval;
+    }
 
-int
-octave_chdir (const std::string& path_arg)
-{
-  std::string path = octave::sys::file_ops::tilde_expand (path_arg);
+    int
+    chdir (const std::string& path_arg)
+    {
+      std::string path = octave::sys::file_ops::tilde_expand (path_arg);
 
 #if defined (__WIN32__) && ! defined (__CYGWIN__)
-  if (path.length () == 2 && path[1] == ':')
-    path += "\\";
+      if (path.length () == 2 && path[1] == ':')
+        path += "\\";
 #endif
 
-  return gnulib::chdir (path.c_str ());
-}
+      return gnulib::chdir (path.c_str ());
+    }
 
 #if defined (__WIN32__) && ! defined (__CYGWIN__)
 
-pid_t
-octave_popen2 (const std::string& cmd, const string_vector& args,
-               bool sync_mode,
-               int *fildes, std::string& msg)
-{
-  pid_t pid;
-  PROCESS_INFORMATION pi;
-  STARTUPINFO si;
-  std::string command = "\"" + cmd + "\"";
-  HANDLE hProcess = GetCurrentProcess ();
-  HANDLE childRead, childWrite, parentRead, parentWrite;
-  DWORD pipeMode;
+    pid_t
+    popen2 (const std::string& cmd, const string_vector& args,
+            bool sync_mode, int *fildes, std::string& msg)
+    {
+      pid_t pid;
+      PROCESS_INFORMATION pi;
+      STARTUPINFO si;
+      std::string command = "\"" + cmd + "\"";
+      HANDLE hProcess = GetCurrentProcess ();
+      HANDLE childRead, childWrite, parentRead, parentWrite;
+      DWORD pipeMode;
+
+      ZeroMemory (&pi, sizeof (pi));
+      ZeroMemory (&si, sizeof (si));
+      si.cb = sizeof (si);
 
-  ZeroMemory (&pi, sizeof (pi));
-  ZeroMemory (&si, sizeof (si));
-  si.cb = sizeof (si);
+      if (! CreatePipe (&childRead, &parentWrite, 0, 0)
+          || ! DuplicateHandle (hProcess, childRead, hProcess, &childRead,
+                                0, TRUE,
+                                DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE))
+        {
+          msg = "popen2: pipe creation failed";
+          return -1;
+        }
+      if (! CreatePipe (&parentRead, &childWrite, 0, 0)
+          || ! DuplicateHandle (hProcess, childWrite, hProcess, &childWrite,
+                                0, TRUE,
+                                DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE))
+        {
+          msg = "popen2: pipe creation failed";
+          return -1;
+        }
+      if (! sync_mode)
+        {
+          pipeMode = PIPE_NOWAIT;
+          SetNamedPipeHandleState (parentRead, &pipeMode, 0, 0);
+        }
+      fildes[1] = _open_osfhandle (reinterpret_cast<intptr_t> (parentRead),
+                                   _O_RDONLY | _O_BINARY);
+      fildes[0] = _open_osfhandle (reinterpret_cast<intptr_t> (parentWrite),
+                                   _O_WRONLY | _O_BINARY);
+      si.dwFlags |= STARTF_USESTDHANDLES;
+      si.hStdInput = childRead;
+      si.hStdOutput = childWrite;
 
-  if (! CreatePipe (&childRead, &parentWrite, 0, 0)
-      || ! DuplicateHandle (hProcess, childRead, hProcess, &childRead,
-                            0, TRUE,
-                            DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE))
-    {
-      msg = "popen2: pipe creation failed";
-      return -1;
-    }
-  if (! CreatePipe (&parentRead, &childWrite, 0, 0)
-      || ! DuplicateHandle (hProcess, childWrite, hProcess, &childWrite,
-                            0, TRUE,
-                            DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE))
-    {
-      msg = "popen2: pipe creation failed";
-      return -1;
+      // Ignore first arg as it is the command
+      for (int k=1; k<args.numel (); k++)
+        command += " \"" + args[k] + "\"";
+      OCTAVE_LOCAL_BUFFER (char, c_command, command.length () + 1);
+      strcpy (c_command, command.c_str ());
+      if (! CreateProcess (0, c_command, 0, 0, TRUE, 0, 0, 0, &si, &pi))
+        {
+          msg = "popen2: process creation failed";
+          return -1;
+        }
+      pid = pi.dwProcessId;
+
+      CloseHandle (childRead);
+      CloseHandle (childWrite);
+      CloseHandle (pi.hProcess);
+      CloseHandle (pi.hThread);
+
+      return pid;
     }
-  if (! sync_mode)
-    {
-      pipeMode = PIPE_NOWAIT;
-      SetNamedPipeHandleState (parentRead, &pipeMode, 0, 0);
-    }
-  fildes[1] = _open_osfhandle (reinterpret_cast<intptr_t> (parentRead),
-                               _O_RDONLY | _O_BINARY);
-  fildes[0] = _open_osfhandle (reinterpret_cast<intptr_t> (parentWrite),
-                               _O_WRONLY | _O_BINARY);
-  si.dwFlags |= STARTF_USESTDHANDLES;
-  si.hStdInput = childRead;
-  si.hStdOutput = childWrite;
-
-  // Ignore first arg as it is the command
-  for (int k=1; k<args.numel (); k++)
-    command += " \"" + args[k] + "\"";
-  OCTAVE_LOCAL_BUFFER (char, c_command, command.length () + 1);
-  strcpy (c_command, command.c_str ());
-  if (! CreateProcess (0, c_command, 0, 0, TRUE, 0, 0, 0, &si, &pi))
-    {
-      msg = "popen2: process creation failed";
-      return -1;
-    }
-  pid = pi.dwProcessId;
-
-  CloseHandle (childRead);
-  CloseHandle (childWrite);
-  CloseHandle (pi.hProcess);
-  CloseHandle (pi.hThread);
-
-  return pid;
-}
 
 #endif
+
+  }
+}
diff -r ab6c639f0678 -r a99c2407f930 liboctave/system/lo-sysdep.h
--- a/liboctave/system/lo-sysdep.h	Thu May 19 01:33:06 2016 -0400
+++ b/liboctave/system/lo-sysdep.h	Thu May 19 01:50:04 2016 -0400
@@ -28,15 +28,37 @@
 #include <string>
 
 #include "lo-ieee.h"
+
 class string_vector;
 
-extern std::string octave_getcwd (void);
+namespace octave
+{
+  namespace sys
+  {
+    extern std::string getcwd (void);
 
-extern int octave_chdir (const std::string&);
+    extern int chdir (const std::string&);
 
 #if defined (__WIN32__) && ! defined (__CYGWIN__)
-extern pid_t octave_popen2 (const std::string&, const string_vector&,
-                            bool, int *, std::string&);
+    extern pid_t popen2 (const std::string&, const string_vector&,
+                         bool, int *, std::string&);
+#endif
+  }
+}
+
+#if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS)
+
+OCTAVE_DEPRECATED ("use octave::sys::getcwd instead")
+const auto octave_getcwd = octave::sys::getcwd;
+
+OCTAVE_DEPRECATED ("use octave::sys::chdir instead")
+const auto octave_chdir = octave::sys::chdir;
+
+#if defined (__WIN32__) && ! defined (__CYGWIN__)
+OCTAVE_DEPRECATED ("use octave::sys:: instead")
+const auto octave_popen2 = octave::sys::popen2;
 #endif
 
 #endif
+
+#endif
diff -r ab6c639f0678 -r a99c2407f930 liboctave/system/oct-env.cc
--- a/liboctave/system/oct-env.cc	Thu May 19 01:33:06 2016 -0400
+++ b/liboctave/system/oct-env.cc	Thu May 19 01:50:04 2016 -0400
@@ -456,7 +456,7 @@
         current_directory = "";
 
       if (verbatim_pwd || current_directory.empty ())
-        current_directory = ::octave_getcwd ();
+        current_directory = octave::sys::getcwd ();
 
       return current_directory;
     }
@@ -557,14 +557,14 @@
                 tmp.resize (len);
             }
 
-          if (! ::octave_chdir (tmp))
+          if (! octave::sys::chdir (tmp))
             {
               current_directory = tmp;
               retval = true;
             }
         }
       else
-        retval = (! ::octave_chdir (newdir));
+        retval = (! octave::sys::chdir (newdir));
 
       return retval;
     }
diff -r ab6c639f0678 -r a99c2407f930 liboctave/system/oct-syscalls.cc
--- a/liboctave/system/oct-syscalls.cc	Thu May 19 01:33:06 2016 -0400
+++ b/liboctave/system/oct-syscalls.cc	Thu May 19 01:50:04 2016 -0400
@@ -322,7 +322,7 @@
             bool &interactive)
     {
 #if defined (__WIN32__) && ! defined (__CYGWIN__)
-      return ::octave_popen2 (cmd, args, sync_mode, fildes, msg);
+      return octave::sys::popen2 (cmd, args, sync_mode, fildes, msg);
 #else
       pid_t pid;
       int child_stdin[2], child_stdout[2];