Daily bump.
[official-gcc.git] / libjava / include / win32.h
blob48989fe3dfa8da89b01f17f3e88a08c2f1a9c6b2
1 // win32.h -- Helper functions for Microsoft-flavored OSs.
3 /* Copyright (C) 2002, 2003, 2006 Free Software Foundation
5 This file is part of libgcj.
7 This software is copyrighted work licensed under the terms of the
8 Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
9 details. */
11 #ifndef __JV_WIN32_H__
12 #define __JV_WIN32_H__
14 // Enable UNICODE support?
16 #ifdef MINGW_LIBGCJ_UNICODE
17 #define UNICODE
18 #define _UNICODE
19 #endif // MINGW_LIBGCJ_UNICODE
21 #include <tchar.h>
23 // Includes
24 #define WIN32_LEAN_AND_MEAN
25 // Force Winsock 2 interface.
26 #include <winsock2.h>
27 #include <windows.h>
28 #undef WIN32_LEAN_AND_MEAN
29 #undef STRICT
31 #include <ws2tcpip.h>
32 #include <gcj/cni.h>
33 #include <jvm.h>
34 #include <java/util/Properties.h>
36 #include <io.h>
38 /* Begin UNICODE Support Classes and Functions */
40 /* Helper class which creates a temporary, null-terminated,
41 wide-character C string. */
42 class _Jv_Win32TempString
44 public:
45 _Jv_Win32TempString(jstring jstr);
46 ~_Jv_Win32TempString();
48 // Accessors
49 operator LPCTSTR() const
51 return buf_;
53 LPCTSTR buf() const
55 return buf_;
57 LPTSTR buf()
59 return buf_;
62 private:
63 TCHAR stackbuf_[500];
64 LPTSTR buf_;
67 // Mimics the JV_TEMP_STRING_UTF macro in jvm.h
68 #define JV_TEMP_STRING_WIN32(x,y) _Jv_Win32TempString x(y);
70 // Creates a jstring from a LPCTSTR
71 extern jstring _Jv_Win32NewString (LPCTSTR pcsz);
73 /* End UNICODE Helpers */
75 // Prefix and suffix for shared libraries.
76 #define _Jv_platform_solib_prefix ""
77 #define _Jv_platform_solib_suffix ".dll"
79 // Name of the Process implementation.
80 #define _Jv_platform_process ::java::lang::Win32Process
82 // Separator for file name components.
83 #define _Jv_platform_file_separator ((jchar) '\\')
84 // Separator for path components.
85 #define _Jv_platform_path_separator ((jchar) ';')
87 // List of names for `JNI_OnLoad'. On Win32, JNI_OnLoad is an
88 // "stdcall" function taking two pointers (8 bytes) as arguments. It
89 // could also have been exported as "JNI_OnLoad@8" (MinGW) or
90 // "_JNI_OnLoad@8" (MSVC).
91 #define _Jv_platform_onload_names \
92 { "JNI_OnLoad", "JNI_OnLoad@8", "_JNI_OnLoad@8", NULL }
94 // Type of libffi ABI used by JNICALL methods. NOTE: This must agree
95 // with the JNICALL definition in jni.h
96 #define _Jv_platform_ffi_abi FFI_STDCALL
98 /* Useful helper classes and methods. */
100 /* A C++ wrapper around a WSAEVENT which closes the event
101 in its destructor. If dwSelFlags is non-zero, we also
102 issue an WSAEventSelect on the socket descriptor with
103 the given flags; this is undone by a corresponding call
104 to WSAEventSelect(fd, 0, 0) in our destructor. */
105 class WSAEventWrapper
107 public:
108 // Default constructor. Call init() after this.
109 WSAEventWrapper();
110 WSAEventWrapper(int fd, DWORD dwSelFlags);
111 ~WSAEventWrapper();
113 // Used for two-step initialization after calling
114 // default constructor.
115 void init(int fd, DWORD dwSelFlags);
117 int getFD()
119 return m_fd;
122 WSAEVENT getEventHandle()
124 return m_hEvent;
127 private:
128 WSAEVENT m_hEvent;
129 int m_fd;
130 DWORD m_dwSelFlags;
133 // Error string text. The int argument is compatible
134 // with both int WSAGetLastError() and DWORD GetLastError()
135 // I tried avoiding having to pass the error explicitly, but
136 // it didn't work this was invoked with say
137 // throw new SomeException(_Jv_WinStrError()).
138 extern jstring
139 _Jv_WinStrError (LPCTSTR lpszPrologue, int nErrorCode);
141 extern jstring
142 _Jv_WinStrError (int nErrorCode);
144 extern void
145 _Jv_ThrowIOException (DWORD dwErrorCode);
147 extern void
148 _Jv_ThrowIOException ();
150 extern void
151 _Jv_ThrowSocketException (DWORD dwErrorCode);
153 extern void
154 _Jv_ThrowSocketException ();
156 // Platform implementation
157 extern void _Jv_platform_initialize (void);
158 extern void _Jv_platform_initProperties (java::util::Properties*);
159 extern jlong _Jv_platform_gettimeofday ();
160 extern jlong _Jv_platform_nanotime ();
161 extern int _Jv_pipe (int filedes[2]);
163 extern void
164 _Jv_platform_close_on_exec (HANDLE h);
166 #ifdef JV_HASH_SYNCHRONIZATION
167 /* Suspends the execution of the current thread for the specified
168 number of microseconds. Tries to emulate the behaviour of usleep()
169 on UNIX and provides a granularity of 1 millisecond. */
170 inline void
171 _Jv_platform_usleep (unsigned long usecs)
173 if (usecs > 0UL)
175 unsigned long millis = ((usecs + 999UL) / 1000UL);
176 Sleep (millis);
179 #endif /* JV_HASH_SYNCHRONIZATION */
181 // Forward declaration. See java-stack.h for definition.
182 struct _Jv_AddrInfo;
184 // Given an address, determine the executable or shared object that defines
185 // it and the nearest named symbol.
186 extern int _Jv_platform_dladdr (void *addr, _Jv_AddrInfo *info);
188 #endif /* __JV_WIN32_H__ */