// win32.cc - Helper functions for Microsoft-flavored OSs.
-/* Copyright (C) 2002, 2003 Free Software Foundation
+/* Copyright (C) 2002, 2003, 2006 Free Software Foundation
This file is part of libgcj.
#include <platform.h>
#include <sys/timeb.h>
#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+
+#include <java-stack.h>
#include <java/lang/ArithmeticException.h>
#include <java/lang/UnsupportedOperationException.h>
// Helper classes and methods implementation
+#ifdef MINGW_LIBGCJ_UNICODE
+
+// We're using the OS W (UNICODE) API, which means that we're speaking
+// the same language....
+jstring
+_Jv_Win32NewString (LPCTSTR pcsz)
+{
+ return JvNewString ((jchar*) pcsz, _tcslen (pcsz));
+}
+
+#else
+
+// We're using the OS A functions, which means we need to translate between
+// UNICODE and the native character set.
+
+// First, let's set up some helper translation functions....
+
+// Converts the native string to any specified jstring, returning the
+// length of the jstring. If the specified jstring is null, we simply
+// compute and return the length.
+static int nativeToUnicode(LPCSTR pcsz, jstring jstr = 0)
+{
+ jchar* buf = 0;
+ int len = 0;
+ if (jstr)
+ {
+ len = jstr->length();
+ buf = JvGetStringChars(jstr);
+ }
+ return ::MultiByteToWideChar(GetACP(), 0, pcsz,
+ strlen(pcsz), (LPWSTR) buf, len);
+}
+
+// Does the inverse of nativeToUnicode, with the same calling semantics.
+static int unicodeToNative(jstring jstr, LPSTR buf, int buflen)
+{
+ return ::WideCharToMultiByte(GetACP(), 0, (LPWSTR) JvGetStringChars(jstr),
+ jstr->length(), buf, buflen, NULL, NULL);
+}
+
+// Convenience function when the caller only wants to compute the length
+// of the native string.
+static int unicodeToNative(jstring jstr)
+{
+ return unicodeToNative(jstr, 0, 0);
+}
+
+jstring
+_Jv_Win32NewString (LPCTSTR pcsz)
+{
+ // Compute the length, allocate the jstring, then perform the conversion.
+ int len = nativeToUnicode(pcsz);
+ jstring jstr = JvAllocString(len);
+ nativeToUnicode(pcsz, jstr);
+ return jstr;
+}
+
+#endif // MINGW_LIBGCJ_UNICODE
+
+// class _Jv_Win32TempString
+_Jv_Win32TempString::_Jv_Win32TempString(jstring jstr):
+ buf_(0)
+{
+ if (jstr == 0)
+ return;
+
+ // We need space for the string length plus a null terminator.
+ // Determine whether to use our stack-allocated buffer or a heap-
+ // allocated one.
+#ifdef MINGW_LIBGCJ_UNICODE
+ // A UNICODE character is a UNICODE character is a UNICODE character....
+ int len = jstr->length();
+#else
+ // Compute the length of the native character string.
+ int len = unicodeToNative(jstr);
+#endif // MINGW_LIBGCJ_UNICODE
+
+ int bytesNeeded = (len + 1) * sizeof(TCHAR);
+ if (bytesNeeded <= (int) sizeof(stackbuf_))
+ buf_ = stackbuf_;
+ else
+ buf_ = (LPTSTR) _Jv_Malloc(bytesNeeded);
+
+#ifdef MINGW_LIBGCJ_UNICODE
+ // Copy the UNICODE characters to our buffer.
+ _tcsncpy(buf_, (LPCTSTR) JvGetStringChars (jstr), len);
+#else
+ // Convert the UNICODE string to a native one.
+ unicodeToNative(jstr, buf_, len);
+#endif // MINGW_LIBGCJ_UNICODE
+
+ buf_[len] = 0;
+}
+
+_Jv_Win32TempString::~_Jv_Win32TempString()
+{
+ if (buf_ && buf_ != stackbuf_)
+ _Jv_Free (buf_);
+}
+
// class WSAEventWrapper
+WSAEventWrapper::WSAEventWrapper ():
+ m_hEvent(0),
+ m_fd(0),
+ m_dwSelFlags(0)
+{}
+
WSAEventWrapper::WSAEventWrapper (int fd, DWORD dwSelFlags):
m_hEvent(0),
- m_fd(fd),
- m_dwSelFlags(dwSelFlags)
+ m_fd(0),
+ m_dwSelFlags(0)
{
+ init(fd, dwSelFlags);
+}
+
+void WSAEventWrapper::init(int fd, DWORD dwSelFlags)
+{
+ m_fd = fd;
+ m_dwSelFlags = dwSelFlags;
m_hEvent = WSACreateEvent ();
if (dwSelFlags)
WSAEventSelect(fd, m_hEvent, dwSelFlags);
if (lpszPrologue)
{
LPTSTR lpszTemp =
- (LPTSTR) _Jv_Malloc (strlen (lpszPrologue) +
- strlen (lpMsgBuf) + 3);
- strcpy (lpszTemp, lpszPrologue);
- strcat (lpszTemp, ": ");
- strcat (lpszTemp, lpMsgBuf);
- ret = JvNewStringLatin1 (lpszTemp);
+ (LPTSTR) _Jv_Malloc ((_tcslen (lpszPrologue) +
+ _tcslen (lpMsgBuf) + 3) * sizeof(TCHAR) );
+ _tcscpy (lpszTemp, lpszPrologue);
+ _tcscat (lpszTemp, _T(": "));
+ _tcscat (lpszTemp, lpMsgBuf);
+ ret = _Jv_Win32NewString (lpszTemp);
+ _Jv_Free (lpszTemp);
}
else
{
- ret = JvNewStringLatin1 (lpMsgBuf);
+ ret = _Jv_Win32NewString (lpMsgBuf);
}
LocalFree(lpMsgBuf);
{
// Initialise winsock for networking
WSADATA data;
- if (WSAStartup (MAKEWORD (1, 1), &data))
- MessageBox (NULL, "Error initialising winsock library.", "Error",
+ if (WSAStartup (MAKEWORD (2, 2), &data))
+ MessageBox (NULL, _T("Error initialising winsock library."), _T("Error"),
MB_OK | MB_ICONEXCLAMATION);
// Install exception handler
SetUnhandledExceptionFilter (win32_exception_handler);
- // Initialize our executable name
- GetModuleFileName(NULL, exec_name, sizeof(exec_name));
+ // Initialize our executable name.
+ // FIXME: We unconditionally use the ANSI function because
+ // _Jv_ThisExecutable returns a const char*. We should really
+ // change _Jv_ThisExecutable to return a jstring.
+ GetModuleFileNameA(NULL, exec_name, sizeof(exec_name));
}
// gettimeofday implementation.
return t.time * 1000LL + t.millitm;
}
+jlong
+_Jv_platform_nanotime ()
+{
+ return _Jv_platform_gettimeofday () * 1000LL;
+}
+
// The following definitions "fake out" mingw to think that -mthreads
// was enabled and that mingwthr.dll was linked. GCJ-compiled
// applications don't need this helper library because we can safely
return 0;
}
+static bool dirExists (LPCTSTR dir)
+{
+ DWORD dwAttrs = ::GetFileAttributes (dir);
+ return dwAttrs != 0xFFFFFFFF &&
+ (dwAttrs & FILE_ATTRIBUTE_DIRECTORY) != 0;
+}
+
+static void getUserHome(LPTSTR userHome, LPCTSTR userId)
+{
+ LPTSTR uh = _tgetenv (_T("USERPROFILE"));
+ if (uh)
+ {
+ _tcscpy(userHome, uh);
+ }
+ else
+ {
+ // Make a half-hearted attempt to support this
+ // legacy version of Windows. Try %WINDIR%\Profiles\%USERNAME%
+ // and failing this, use %WINDIR%.
+ //
+ // See:http://java.sun.com/docs/books/tutorial/security1.2/summary/files.html#UserPolicy
+ //
+ // To do this correctly, we'd have to factor in the
+ // Windows version, but if we did that, then this attempt
+ // wouldn't be half-hearted.
+ TCHAR userHomePath[MAX_PATH], winHome[MAX_PATH];
+ ::GetWindowsDirectory(winHome, MAX_PATH);
+ // assume this call always succeeds
+
+ _stprintf(userHomePath, _T("%s\\Profiles\\%s"), winHome, userId);
+ if (dirExists (userHomePath))
+ _tcscpy(userHome, userHomePath);
+ else
+ _tcscpy(userHome, winHome);
+ }
+}
+
// Set platform-specific System properties.
void
_Jv_platform_initProperties (java::util::Properties* newprops)
{
// A convenience define.
#define SET(Prop,Val) \
- newprops->put(JvNewStringLatin1 (Prop), JvNewStringLatin1 (Val))
+ newprops->put(JvNewStringLatin1 (Prop), _Jv_Win32NewString (Val))
- SET ("file.separator", "\\");
- SET ("path.separator", ";");
- SET ("line.separator", "\r\n");
+ SET ("file.separator", _T("\\"));
+ SET ("path.separator", _T(";"));
+ SET ("line.separator", _T("\r\n"));
// Use GetCurrentDirectory to set 'user.dir'.
DWORD buflen = MAX_PATH;
- char *buffer = (char *) _Jv_MallocUnchecked (buflen);
+ TCHAR buffer[buflen];
if (buffer != NULL)
{
if (GetCurrentDirectory (buflen, buffer))
if (GetTempPath (buflen, buffer))
SET ("java.io.tmpdir", buffer);
-
- _Jv_Free (buffer);
}
// Use GetUserName to set 'user.name'.
buflen = 257; // UNLEN + 1
- buffer = (char *) _Jv_MallocUnchecked (buflen);
- if (buffer != NULL)
- {
- if (GetUserName (buffer, &buflen))
- SET ("user.name", buffer);
- _Jv_Free (buffer);
- }
+ TCHAR userName[buflen];
+ if (GetUserName (userName, &buflen))
+ SET ("user.name", userName);
- // According to the api documentation for 'GetWindowsDirectory()', the
- // environmental variable HOMEPATH always specifies the user's home
- // directory or a default directory. On the 3 windows machines I checked
- // only 1 had it set. If it's not set, JDK1.3.1 seems to set it to
- // the windows directory, so we'll do the same.
- char *userHome = NULL;
- if ((userHome = ::getenv ("HOMEPATH")) == NULL )
- {
- // Check HOME since it's what I use.
- if ((userHome = ::getenv ("HOME")) == NULL )
- {
- // Not found - use the windows directory like JDK1.3.1 does.
- char *winHome = (char *) _Jv_MallocUnchecked (MAX_PATH);
- if (winHome != NULL)
- {
- if (GetWindowsDirectory (winHome, MAX_PATH))
- SET ("user.home", winHome);
- _Jv_Free (winHome);
- }
- }
- }
- if (userHome != NULL)
- SET ("user.home", userHome);
+ // Set user.home
+ TCHAR userHome[MAX_PATH];
+ getUserHome(userHome, userName);
+ SET ("user.home", userHome);
// Get and set some OS info.
OSVERSIONINFO osvi;
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
if (GetVersionEx (&osvi))
{
- char *buffer = (char *) _Jv_MallocUnchecked (30);
if (buffer != NULL)
{
- sprintf (buffer, "%d.%d", (int) osvi.dwMajorVersion,
+ _stprintf (buffer, _T("%d.%d"), (int) osvi.dwMajorVersion,
(int) osvi.dwMinorVersion);
SET ("os.version", buffer);
- _Jv_Free (buffer);
}
switch (osvi.dwPlatformId)
{
case VER_PLATFORM_WIN32_WINDOWS:
if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 0)
- SET ("os.name", "Windows 95");
+ SET ("os.name", _T("Windows 95"));
else if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 10)
- SET ("os.name", "Windows 98");
+ SET ("os.name", _T("Windows 98"));
else if (osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 90)
- SET ("os.name", "Windows Me");
+ SET ("os.name", _T("Windows Me"));
else
- SET ("os.name", "Windows ??");
+ SET ("os.name", _T("Windows ??"));
break;
case VER_PLATFORM_WIN32_NT:
if (osvi.dwMajorVersion <= 4 )
- SET ("os.name", "Windows NT");
+ SET ("os.name", _T("Windows NT"));
else if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 0)
- SET ("os.name", "Windows 2000");
+ SET ("os.name", _T("Windows 2000"));
else if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1)
- SET ("os.name", "Windows XP");
+ SET ("os.name", _T("Windows XP"));
else
- SET ("os.name", "Windows NT ??");
+ SET ("os.name", _T("Windows NT ??"));
break;
default:
- SET ("os.name", "Windows UNKNOWN");
+ SET ("os.name", _T("Windows UNKNOWN"));
break;
}
}
switch (si.wProcessorArchitecture)
{
case PROCESSOR_ARCHITECTURE_INTEL:
- SET ("os.arch", "x86");
+ SET ("os.arch", _T("x86"));
break;
case PROCESSOR_ARCHITECTURE_MIPS:
- SET ("os.arch", "mips");
+ SET ("os.arch", _T("mips"));
break;
case PROCESSOR_ARCHITECTURE_ALPHA:
- SET ("os.arch", "alpha");
+ SET ("os.arch", _T("alpha"));
break;
- case PROCESSOR_ARCHITECTURE_PPC:
- SET ("os.arch", "ppc");
+ case PROCESSOR_ARCHITECTURE_PPC:
+ SET ("os.arch", _T("ppc"));
break;
case PROCESSOR_ARCHITECTURE_IA64:
- SET ("os.arch", "ia64");
+ SET ("os.arch", _T("ia64"));
break;
case PROCESSOR_ARCHITECTURE_UNKNOWN:
default:
- SET ("os.arch", "unknown");
+ SET ("os.arch", _T("unknown"));
break;
}
}
-/* Store up to SIZE return address of the current program state in
- ARRAY and return the exact number of values stored. */
int
-backtrace (void **__array, int __size)
+_Jv_pipe (int filedes[2])
{
- register void *_ebp __asm__ ("ebp");
- register void *_esp __asm__ ("esp");
- unsigned int *rfp;
-
- int i=0;
- for (rfp = *(unsigned int**)_ebp;
- rfp && i < __size;
- rfp = *(unsigned int **)rfp)
- {
- int diff = *rfp - (unsigned int)rfp;
- if ((void*)rfp < _esp || diff > 4 * 1024 || diff < 0) break;
+ return _pipe (filedes, 4096, _O_BINARY);
+}
- __array[i++] = (void*)(rfp[1]-4);
- }
- return i;
+void
+_Jv_platform_close_on_exec (HANDLE h)
+{
+ // Mark the handle as non-inheritable. This has
+ // no effect under Win9X.
+ SetHandleInformation (h, HANDLE_FLAG_INHERIT, 0);
}
+// Given an address, find the object that defines it and the nearest
+// defined symbol to that address. Returns 0 if no object defines this
+// address.
int
-_Jv_select (int n, fd_set *readfds, fd_set *writefds,
- fd_set *exceptfds, struct timeval *timeout)
+_Jv_platform_dladdr (void *addr, _Jv_AddrInfo *info)
{
- int r = ::select (n, readfds, writefds, exceptfds, timeout);
- if (r == SOCKET_ERROR)
- {
- DWORD dwErrorCode = WSAGetLastError ();
- throw new java::io::IOException (_Jv_WinStrError (dwErrorCode));
- }
- return r;
+ // Since we do not have dladdr() on Windows, we use a trick involving
+ // VirtualQuery() to find the module (EXE or DLL) that contains a given
+ // address. This was taken from Matt Pietrek's "Under the Hood" column
+ // for the April 1997 issue of Microsoft Systems Journal.
+
+ MEMORY_BASIC_INFORMATION mbi;
+ if (!VirtualQuery (addr, &mbi, sizeof (mbi)))
+ {
+ return 0;
+ }
+
+ HMODULE hMod = (HMODULE) mbi.AllocationBase;
+
+ char moduleName[MAX_PATH];
+
+ // FIXME: We explicitly use the ANSI variant of the function here.
+ if (!GetModuleFileNameA (hMod, moduleName, sizeof (moduleName)))
+ {
+ return 0;
+ }
+
+ char *file_name = (char *)(malloc (strlen (moduleName) + 1));
+ strcpy (file_name, moduleName);
+ info->file_name = file_name;
+
+ // FIXME.
+ info->base = NULL;
+ info->sym_name = NULL;
+ info->sym_addr = NULL;
+
+ return 1;
}
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