[pypy-commit] pypy default: merge win32-cleanup2 branch into default

mattip noreply at buildbot.pypy.org
Tue May 8 22:17:44 CEST 2012


Author: Matti Picus <matti.picus at gmail.com>
Branch: 
Changeset: r54977:4f7a83c25d29
Date: 2012-05-08 23:15 +0300
http://bitbucket.org/pypy/pypy/changeset/4f7a83c25d29/

Log:	merge win32-cleanup2 branch into default

diff --git a/pypy/bin/rpython b/pypy/bin/rpython
old mode 100755
new mode 100644
diff --git a/pypy/module/__pypy__/interp_time.py b/pypy/module/__pypy__/interp_time.py
--- a/pypy/module/__pypy__/interp_time.py
+++ b/pypy/module/__pypy__/interp_time.py
@@ -1,5 +1,5 @@
 from __future__ import with_statement
-import sys
+import os
 
 from pypy.interpreter.error import exception_from_errno
 from pypy.interpreter.gateway import unwrap_spec
@@ -7,11 +7,15 @@
 from pypy.rpython.tool import rffi_platform
 from pypy.translator.tool.cbuild import ExternalCompilationInfo
 
+if os.name == 'nt':
+    libraries = []
+else:
+    libraries = ["rt"]
 
 class CConfig:
     _compilation_info_ = ExternalCompilationInfo(
         includes=["time.h"],
-        libraries=["rt"],
+        libraries=libraries,
     )
 
     HAS_CLOCK_GETTIME = rffi_platform.Has('clock_gettime')
@@ -22,11 +26,6 @@
     CLOCK_PROCESS_CPUTIME_ID = rffi_platform.DefinedConstantInteger("CLOCK_PROCESS_CPUTIME_ID")
     CLOCK_THREAD_CPUTIME_ID = rffi_platform.DefinedConstantInteger("CLOCK_THREAD_CPUTIME_ID")
 
-    TIMESPEC = rffi_platform.Struct("struct timespec", [
-        ("tv_sec", rffi.TIME_T),
-        ("tv_nsec", rffi.LONG),
-    ])
-
 cconfig = rffi_platform.configure(CConfig)
 
 HAS_CLOCK_GETTIME = cconfig["HAS_CLOCK_GETTIME"]
@@ -37,29 +36,36 @@
 CLOCK_PROCESS_CPUTIME_ID = cconfig["CLOCK_PROCESS_CPUTIME_ID"]
 CLOCK_THREAD_CPUTIME_ID = cconfig["CLOCK_THREAD_CPUTIME_ID"]
 
-TIMESPEC = cconfig["TIMESPEC"]
+if HAS_CLOCK_GETTIME:
+    #redo it for timespec
+    CConfig.TIMESPEC = rffi_platform.Struct("struct timespec", [
+        ("tv_sec", rffi.TIME_T),
+        ("tv_nsec", rffi.LONG),
+    ])
+    cconfig = rffi_platform.configure(CConfig)
+    TIMESPEC = cconfig['TIMESPEC']
 
-c_clock_gettime = rffi.llexternal("clock_gettime",
-    [lltype.Signed, lltype.Ptr(TIMESPEC)], rffi.INT,
-    compilation_info=CConfig._compilation_info_, threadsafe=False
-)
-c_clock_getres = rffi.llexternal("clock_getres",
-    [lltype.Signed, lltype.Ptr(TIMESPEC)], rffi.INT,
-    compilation_info=CConfig._compilation_info_, threadsafe=False
-)
+    c_clock_gettime = rffi.llexternal("clock_gettime",
+        [lltype.Signed, lltype.Ptr(TIMESPEC)], rffi.INT,
+        compilation_info=CConfig._compilation_info_, threadsafe=False
+    )
+    c_clock_getres = rffi.llexternal("clock_getres",
+        [lltype.Signed, lltype.Ptr(TIMESPEC)], rffi.INT,
+        compilation_info=CConfig._compilation_info_, threadsafe=False
+    )
 
- at unwrap_spec(clk_id="c_int")
-def clock_gettime(space, clk_id):
-    with lltype.scoped_alloc(TIMESPEC) as tp:
-        ret = c_clock_gettime(clk_id, tp)
-        if ret != 0:
-            raise exception_from_errno(space, space.w_IOError)
-        return space.wrap(tp.c_tv_sec + tp.c_tv_nsec * 1e-9)
+    @unwrap_spec(clk_id="c_int")
+    def clock_gettime(space, clk_id):
+        with lltype.scoped_alloc(TIMESPEC) as tp:
+            ret = c_clock_gettime(clk_id, tp)
+            if ret != 0:
+                raise exception_from_errno(space, space.w_IOError)
+            return space.wrap(tp.c_tv_sec + tp.c_tv_nsec * 1e-9)
 
- at unwrap_spec(clk_id="c_int")
-def clock_getres(space, clk_id):
-    with lltype.scoped_alloc(TIMESPEC) as tp:
-        ret = c_clock_getres(clk_id, tp)
-        if ret != 0:
-            raise exception_from_errno(space, space.w_IOError)
-        return space.wrap(tp.c_tv_sec + tp.c_tv_nsec * 1e-9)
+    @unwrap_spec(clk_id="c_int")
+    def clock_getres(space, clk_id):
+        with lltype.scoped_alloc(TIMESPEC) as tp:
+            ret = c_clock_getres(clk_id, tp)
+            if ret != 0:
+                raise exception_from_errno(space, space.w_IOError)
+            return space.wrap(tp.c_tv_sec + tp.c_tv_nsec * 1e-9)
diff --git a/pypy/module/_file/test/test_file.py b/pypy/module/_file/test/test_file.py
--- a/pypy/module/_file/test/test_file.py
+++ b/pypy/module/_file/test/test_file.py
@@ -265,14 +265,6 @@
 
         if option.runappdirect:
             py.test.skip("works with internals of _file impl on py.py")
-        import platform
-        if platform.system() == 'Windows':
-            # XXX This test crashes until someone implements something like
-            # XXX verify_fd from
-            # XXX http://hg.python.org/cpython/file/80ddbd822227/Modules/posixmodule.c#l434
-            # XXX and adds it to fopen
-            assert False
-
         state = [0]
         def read(fd, n=None):
             if fd != 42:
@@ -286,7 +278,7 @@
             return ''
         os.read = read
         stdin = W_File(cls.space)
-        stdin.file_fdopen(42, "r", 1)
+        stdin.file_fdopen(42, 'rb', 1)
         stdin.name = '<stdin>'
         cls.w_stream = stdin
 
diff --git a/pypy/module/_socket/test/test_sock_app.py b/pypy/module/_socket/test/test_sock_app.py
--- a/pypy/module/_socket/test/test_sock_app.py
+++ b/pypy/module/_socket/test/test_sock_app.py
@@ -617,7 +617,10 @@
         except timeout:
             pass
         # test sendall() timeout
-        raises(timeout, cli.sendall, 'foobar' * 70)
+        try:
+            cli.sendall('foobar'*70)
+        except timeout:
+            pass
         # done
         cli.close()
         t.close()
diff --git a/pypy/module/cpyext/api.py b/pypy/module/cpyext/api.py
--- a/pypy/module/cpyext/api.py
+++ b/pypy/module/cpyext/api.py
@@ -26,6 +26,7 @@
 from pypy.module.__builtin__.interp_classobj import W_ClassObject
 from pypy.module.__builtin__.interp_memoryview import W_MemoryView
 from pypy.rlib.entrypoint import entrypoint
+from pypy.rlib.rposix import is_valid_fd, validate_fd
 from pypy.rlib.unroll import unrolling_iterable
 from pypy.rlib.objectmodel import specialize
 from pypy.rlib.exports import export_struct
@@ -79,20 +80,39 @@
 
 # FILE* interface
 FILEP = rffi.COpaquePtr('FILE')
-fopen = rffi.llexternal('fopen', [CONST_STRING, CONST_STRING], FILEP)
-fclose = rffi.llexternal('fclose', [FILEP], rffi.INT)
-fwrite = rffi.llexternal('fwrite',
-                         [rffi.VOIDP, rffi.SIZE_T, rffi.SIZE_T, FILEP],
-                         rffi.SIZE_T)
-fread = rffi.llexternal('fread',
-                        [rffi.VOIDP, rffi.SIZE_T, rffi.SIZE_T, FILEP],
-                        rffi.SIZE_T)
-feof = rffi.llexternal('feof', [FILEP], rffi.INT)
+
 if sys.platform == 'win32':
     fileno = rffi.llexternal('_fileno', [FILEP], rffi.INT)
 else:
     fileno = rffi.llexternal('fileno', [FILEP], rffi.INT)
 
+fopen = rffi.llexternal('fopen', [CONST_STRING, CONST_STRING], FILEP)
+
+_fclose = rffi.llexternal('fclose', [FILEP], rffi.INT)
+def fclose(fp):
+    if not is_valid_fd(fileno(fp)):
+        return -1
+    return _fclose(fp)
+
+_fwrite = rffi.llexternal('fwrite',
+                         [rffi.VOIDP, rffi.SIZE_T, rffi.SIZE_T, FILEP],
+                         rffi.SIZE_T)
+def fwrite(buf, sz, n, fp):
+    validate_fd(fileno(fp))
+    return _fwrite(buf, sz, n, fp)
+
+_fread = rffi.llexternal('fread',
+                        [rffi.VOIDP, rffi.SIZE_T, rffi.SIZE_T, FILEP],
+                        rffi.SIZE_T)
+def fread(buf, sz, n, fp):
+    validate_fd(fileno(fp))
+    return _fread(buf, sz, n, fp)
+
+_feof = rffi.llexternal('feof', [FILEP], rffi.INT)
+def feof(fp):
+    validate_fd(fileno(fp))
+    return _feof(fp)
+
 
 constant_names = """
 Py_TPFLAGS_READY Py_TPFLAGS_READYING Py_TPFLAGS_HAVE_GETCHARBUFFER
diff --git a/pypy/module/math/test/test_math.py b/pypy/module/math/test/test_math.py
--- a/pypy/module/math/test/test_math.py
+++ b/pypy/module/math/test/test_math.py
@@ -271,5 +271,6 @@
         assert math.trunc(foo()) == "truncated"
 
     def test_copysign_nan(self):
+        skip('sign of nan is undefined')
         import math
         assert math.copysign(1.0, float('-nan')) == -1.0
diff --git a/pypy/module/micronumpy/test/test_ufuncs.py b/pypy/module/micronumpy/test/test_ufuncs.py
--- a/pypy/module/micronumpy/test/test_ufuncs.py
+++ b/pypy/module/micronumpy/test/test_ufuncs.py
@@ -233,12 +233,15 @@
         assert a[1] == 0
 
     def test_signbit(self):
-        from _numpypy import signbit, copysign
+        from _numpypy import signbit
 
-        assert (signbit([0, 0.0, 1, 1.0, float('inf'), float('nan')]) ==
-            [False, False, False, False, False, False]).all()
-        assert (signbit([-0, -0.0, -1, -1.0, float('-inf'), -float('nan'), float('-nan')]) ==
-            [False,  True,  True,  True,  True,  True, True]).all()
+        assert (signbit([0, 0.0, 1, 1.0, float('inf')]) ==
+            [False, False, False, False, False]).all()
+        assert (signbit([-0, -0.0, -1, -1.0, float('-inf')]) ==
+            [False,  True,  True,  True,  True]).all()
+        skip('sign of nan is non-determinant')
+        assert (signbit([float('nan'), float('-nan'), -float('nan')]) ==
+            [False, True, True]).all()    
 
     def test_reciporocal(self):
         from _numpypy import array, reciprocal
@@ -267,8 +270,8 @@
         assert ([ninf, -1.0, -1.0, -1.0, 0.0, 1.0, 2.0, 1.0, inf] == ceil(a)).all()
         assert ([ninf, -1.0, -1.0, -1.0, 0.0, 1.0, 1.0, 0.0, inf] == trunc(a)).all()
         assert all([math.isnan(f(float("nan"))) for f in floor, ceil, trunc])
-        assert all([math.copysign(1, f(float("nan"))) == 1 for f in floor, ceil, trunc])
-        assert all([math.copysign(1, f(float("-nan"))) == -1 for f in floor, ceil, trunc])
+        assert all([math.copysign(1, f(abs(float("nan")))) == 1 for f in floor, ceil, trunc])
+        assert all([math.copysign(1, f(-abs(float("nan")))) == -1 for f in floor, ceil, trunc])
 
     def test_copysign(self):
         from _numpypy import array, copysign
diff --git a/pypy/module/rctime/test/test_rctime.py b/pypy/module/rctime/test/test_rctime.py
--- a/pypy/module/rctime/test/test_rctime.py
+++ b/pypy/module/rctime/test/test_rctime.py
@@ -213,6 +213,7 @@
 
     def test_strftime(self):
         import time as rctime
+        import os
 
         t = rctime.time()
         tt = rctime.gmtime(t)
@@ -228,6 +229,14 @@
         exp = '2000 01 01 00 00 00 1 001'
         assert rctime.strftime("%Y %m %d %H %M %S %w %j", (0,)*9) == exp
 
+        # Guard against invalid/non-supported format string
+        # so that Python don't crash (Windows crashes when the format string
+        # input to [w]strftime is not kosher.
+        if os.name == 'nt':
+            raises(ValueError, rctime.strftime, '%f')
+        else:
+            assert rctime.strftime('%f') == '%f'
+
     def test_strftime_ext(self):
         import time as rctime
 
diff --git a/pypy/module/signal/interp_signal.py b/pypy/module/signal/interp_signal.py
--- a/pypy/module/signal/interp_signal.py
+++ b/pypy/module/signal/interp_signal.py
@@ -15,7 +15,8 @@
 
 def setup():
     for key, value in cpy_signal.__dict__.items():
-        if key.startswith('SIG') and is_valid_int(value):
+        if (key.startswith('SIG') or key.startswith('CTRL_')) and \
+                is_valid_int(value):
             globals()[key] = value
             yield key
 
@@ -23,6 +24,10 @@
 SIG_DFL = cpy_signal.SIG_DFL
 SIG_IGN = cpy_signal.SIG_IGN
 signal_names = list(setup())
+signal_values = [globals()[key] for key in signal_names]
+signal_values = {}
+for key in signal_names:
+    signal_values[globals()[key]] = None
 
 includes = ['stdlib.h', 'src/signals.h']
 if sys.platform != 'win32':
@@ -242,9 +247,11 @@
     return space.w_None
 
 def check_signum(space, signum):
-    if signum < 1 or signum >= NSIG:
-        raise OperationError(space.w_ValueError,
-                             space.wrap("signal number out of range"))
+    if signum in signal_values:
+        return
+    raise OperationError(space.w_ValueError,
+                         space.wrap("invalid signal value"))
+
 
 @jit.dont_look_inside
 @unwrap_spec(signum=int)
diff --git a/pypy/module/signal/test/test_interp_signal.py b/pypy/module/signal/test/test_interp_signal.py
--- a/pypy/module/signal/test/test_interp_signal.py
+++ b/pypy/module/signal/test/test_interp_signal.py
@@ -6,6 +6,8 @@
 def setup_module(mod):
     if not hasattr(os, 'kill') or not hasattr(os, 'getpid'):
         py.test.skip("requires os.kill() and os.getpid()")
+    if not hasattr(interp_signal, 'SIGUSR1'):
+        py.test.skip("requires SIGUSR1 in signal")
 
 
 def check(expected):
diff --git a/pypy/module/signal/test/test_signal.py b/pypy/module/signal/test/test_signal.py
--- a/pypy/module/signal/test/test_signal.py
+++ b/pypy/module/signal/test/test_signal.py
@@ -8,6 +8,8 @@
     def setup_class(cls):
         if not hasattr(os, 'kill') or not hasattr(os, 'getpid'):
             py.test.skip("requires os.kill() and os.getpid()")
+        if not hasattr(cpy_signal, 'SIGUSR1'):    
+            py.test.skip("requires SIGUSR1 in signal")
         cls.space = gettestobjspace(usemodules=['signal'])
 
     def test_checksignals(self):
@@ -36,8 +38,6 @@
 class AppTestSignal:
 
     def setup_class(cls):
-        if not hasattr(os, 'kill') or not hasattr(os, 'getpid'):
-            py.test.skip("requires os.kill() and os.getpid()")
         space = gettestobjspace(usemodules=['signal'])
         cls.space = space
         cls.w_signal = space.appexec([], "(): import signal; return signal")
@@ -45,64 +45,72 @@
     def test_exported_names(self):
         self.signal.__dict__   # crashes if the interpleveldefs are invalid
 
-    def test_usr1(self):
-        import types, posix
+    def test_basics(self):
+        import types, os
+        if not hasattr(os, 'kill') or not hasattr(os, 'getpid'):
+            skip("requires os.kill() and os.getpid()")
         signal = self.signal   # the signal module to test
+        if hasattr(signal,'SIGUSR1'):
+            signum = signal.SIGUSR1
+        else:
+            signum = signal.CTRL_BREAK_EVENT
 
         received = []
         def myhandler(signum, frame):
             assert isinstance(frame, types.FrameType)
             received.append(signum)
-        signal.signal(signal.SIGUSR1, myhandler)
+        signal.signal(signum, myhandler)
 
-        posix.kill(posix.getpid(), signal.SIGUSR1)
+        print dir(os)
+
+        os.kill(os.getpid(), signum)
         # the signal should be delivered to the handler immediately
-        assert received == [signal.SIGUSR1]
+        assert received == [signum]
         del received[:]
 
-        posix.kill(posix.getpid(), signal.SIGUSR1)
+        os.kill(os.getpid(), signum)
         # the signal should be delivered to the handler immediately
-        assert received == [signal.SIGUSR1]
+        assert received == [signum]
         del received[:]
 
-        signal.signal(signal.SIGUSR1, signal.SIG_IGN)
+        signal.signal(signum, signal.SIG_IGN)
 
-        posix.kill(posix.getpid(), signal.SIGUSR1)
+        os.kill(os.getpid(), signum)
         for i in range(10000):
             # wait a bit - signal should not arrive
             if received:
                 break
         assert received == []
 
-        signal.signal(signal.SIGUSR1, signal.SIG_DFL)
+        signal.signal(signum, signal.SIG_DFL)
 
 
     def test_default_return(self):
         """
         Test that signal.signal returns SIG_DFL if that is the current handler.
         """
-        from signal import signal, SIGUSR1, SIG_DFL, SIG_IGN
+        from signal import signal, SIGINT, SIG_DFL, SIG_IGN
 
         try:
             for handler in SIG_DFL, SIG_IGN, lambda *a: None:
-                signal(SIGUSR1, SIG_DFL)
-                assert signal(SIGUSR1, handler) == SIG_DFL
+                signal(SIGINT, SIG_DFL)
+                assert signal(SIGINT, handler) == SIG_DFL
         finally:
-            signal(SIGUSR1, SIG_DFL)
+            signal(SIGINT, SIG_DFL)
 
 
     def test_ignore_return(self):
         """
         Test that signal.signal returns SIG_IGN if that is the current handler.
         """
-        from signal import signal, SIGUSR1, SIG_DFL, SIG_IGN
+        from signal import signal, SIGINT, SIG_DFL, SIG_IGN
 
         try:
             for handler in SIG_DFL, SIG_IGN, lambda *a: None:
-                signal(SIGUSR1, SIG_IGN)
-                assert signal(SIGUSR1, handler) == SIG_IGN
+                signal(SIGINT, SIG_IGN)
+                assert signal(SIGINT, handler) == SIG_IGN
         finally:
-            signal(SIGUSR1, SIG_DFL)
+            signal(SIGINT, SIG_DFL)
 
 
     def test_obj_return(self):
@@ -110,43 +118,47 @@
         Test that signal.signal returns a Python object if one is the current
         handler.
         """
-        from signal import signal, SIGUSR1, SIG_DFL, SIG_IGN
+        from signal import signal, SIGINT, SIG_DFL, SIG_IGN
         def installed(*a):
             pass
 
         try:
             for handler in SIG_DFL, SIG_IGN, lambda *a: None:
-                signal(SIGUSR1, installed)
-                assert signal(SIGUSR1, handler) is installed
+                signal(SIGINT, installed)
+                assert signal(SIGINT, handler) is installed
         finally:
-            signal(SIGUSR1, SIG_DFL)
+            signal(SIGINT, SIG_DFL)
 
 
     def test_getsignal(self):
         """
         Test that signal.getsignal returns the currently installed handler.
         """
-        from signal import getsignal, signal, SIGUSR1, SIG_DFL, SIG_IGN
+        from signal import getsignal, signal, SIGINT, SIG_DFL, SIG_IGN
 
         def handler(*a):
             pass
 
         try:
-            assert getsignal(SIGUSR1) == SIG_DFL
-            signal(SIGUSR1, SIG_DFL)
-            assert getsignal(SIGUSR1) == SIG_DFL
-            signal(SIGUSR1, SIG_IGN)
-            assert getsignal(SIGUSR1) == SIG_IGN
-            signal(SIGUSR1, handler)
-            assert getsignal(SIGUSR1) is handler
+            assert getsignal(SIGINT) == SIG_DFL
+            signal(SIGINT, SIG_DFL)
+            assert getsignal(SIGINT) == SIG_DFL
+            signal(SIGINT, SIG_IGN)
+            assert getsignal(SIGINT) == SIG_IGN
+            signal(SIGINT, handler)
+            assert getsignal(SIGINT) is handler
         finally:
-            signal(SIGUSR1, SIG_DFL)
+            signal(SIGINT, SIG_DFL)
 
         raises(ValueError, getsignal, 4444)
         raises(ValueError, signal, 4444, lambda *args: None)
+        raises(ValueError, signal, 42, lambda *args: None)
 
     def test_alarm(self):
-        from signal import alarm, signal, SIG_DFL, SIGALRM
+        try:
+            from signal import alarm, signal, SIG_DFL, SIGALRM
+        except:
+            skip('no alarm on this platform')
         import time
         l = []
         def handler(*a):
@@ -163,10 +175,13 @@
             signal(SIGALRM, SIG_DFL)
 
     def test_set_wakeup_fd(self):
-        import signal, posix, fcntl
+        try:
+            import signal, posix, fcntl
+        except ImportError:
+            skip('cannot import posix or fcntl')
         def myhandler(signum, frame):
             pass
-        signal.signal(signal.SIGUSR1, myhandler)
+        signal.signal(signal.SIGINT, myhandler)
         #
         def cannot_read():
             try:
@@ -187,17 +202,19 @@
         old_wakeup = signal.set_wakeup_fd(fd_write)
         try:
             cannot_read()
-            posix.kill(posix.getpid(), signal.SIGUSR1)
+            posix.kill(posix.getpid(), signal.SIGINT)
             res = posix.read(fd_read, 1)
             assert res == '\x00'
             cannot_read()
         finally:
             old_wakeup = signal.set_wakeup_fd(old_wakeup)
         #
-        signal.signal(signal.SIGUSR1, signal.SIG_DFL)
+        signal.signal(signal.SIGINT, signal.SIG_DFL)
 
     def test_siginterrupt(self):
         import signal, os, time
+        if not hasattr(signal, 'siginterrupt'):
+            skip('non siginterrupt in signal')
         signum = signal.SIGUSR1
         def readpipe_is_not_interrupted():
             # from CPython's test_signal.readpipe_interrupted()
diff --git a/pypy/rlib/rarithmetic.py b/pypy/rlib/rarithmetic.py
--- a/pypy/rlib/rarithmetic.py
+++ b/pypy/rlib/rarithmetic.py
@@ -71,7 +71,7 @@
 
 # used in tests for ctypes and for genc and friends
 # to handle the win64 special case:
-is_emulated_long = _long_typecode <> 'l'
+is_emulated_long = _long_typecode != 'l'
     
 LONG_BIT = _get_long_bit()
 LONG_MASK = (2**LONG_BIT)-1
diff --git a/pypy/rlib/rmmap.py b/pypy/rlib/rmmap.py
--- a/pypy/rlib/rmmap.py
+++ b/pypy/rlib/rmmap.py
@@ -739,14 +739,35 @@
         # assume -1 and 0 both mean invalid file descriptor
         # to 'anonymously' map memory.
         if fileno != -1 and fileno != 0:
-            fh = rwin32._get_osfhandle(fileno)
-            if fh == INVALID_HANDLE:
-                errno = rposix.get_errno()
-                raise OSError(errno, os.strerror(errno))
+            fh = rwin32.get_osfhandle(fileno)
             # Win9x appears to need us seeked to zero
             # SEEK_SET = 0
             # libc._lseek(fileno, 0, SEEK_SET)
 
+            # check file size
+            try:
+                low, high = _get_file_size(fh)
+            except OSError:
+                pass     # ignore non-seeking files and errors and trust map_size
+            else:
+                if not high and low <= sys.maxint:
+                   size = low
+                else:   
+                    # not so sure if the signed/unsigned strictness is a good idea:
+                    high = rffi.cast(lltype.Unsigned, high)
+                    low = rffi.cast(lltype.Unsigned, low)
+                    size = (high << 32) + low
+                    size = rffi.cast(lltype.Signed, size)
+                if map_size == 0:
+                    if offset > size:
+                        raise RValueError(
+                            "mmap offset is greater than file size")
+                    map_size = int(size - offset)
+                    if map_size != size - offset:
+                        raise RValueError("mmap length is too large")
+                elif offset + map_size > size:
+                    raise RValueError("mmap length is greater than file size")
+
         m = MMap(access, offset)
         m.file_handle = INVALID_HANDLE
         m.map_handle = INVALID_HANDLE
diff --git a/pypy/rlib/rposix.py b/pypy/rlib/rposix.py
--- a/pypy/rlib/rposix.py
+++ b/pypy/rlib/rposix.py
@@ -98,16 +98,16 @@
     _set_errno(rffi.cast(INT, errno))
 
 if os.name == 'nt':
-    _validate_fd = rffi.llexternal(
+    is_valid_fd = rffi.llexternal(
         "_PyVerify_fd", [rffi.INT], rffi.INT,
         compilation_info=errno_eci,
         )
     @jit.dont_look_inside
     def validate_fd(fd):
-        if not _validate_fd(fd):
+        if not is_valid_fd(fd):
             raise OSError(get_errno(), 'Bad file descriptor')
 else:
-    def _validate_fd(fd):
+    def is_valid_fd(fd):
         return 1
 
     def validate_fd(fd):
@@ -117,7 +117,8 @@
     # this behaves like os.closerange() from Python 2.6.
     for fd in xrange(fd_low, fd_high):
         try:
-            os.close(fd)
+            if is_valid_fd(fd):
+                os.close(fd)
         except OSError:
             pass
 
diff --git a/pypy/rlib/rwin32.py b/pypy/rlib/rwin32.py
--- a/pypy/rlib/rwin32.py
+++ b/pypy/rlib/rwin32.py
@@ -8,6 +8,7 @@
 from pypy.translator.platform import CompilationError
 from pypy.rpython.lltypesystem import lltype, rffi
 from pypy.rlib.rarithmetic import intmask
+from pypy.rlib.rposix import validate_fd
 from pypy.rlib import jit
 import os, sys, errno
 
@@ -78,6 +79,7 @@
         for name in """FORMAT_MESSAGE_ALLOCATE_BUFFER FORMAT_MESSAGE_FROM_SYSTEM
                        MAX_PATH
                        WAIT_OBJECT_0 WAIT_TIMEOUT INFINITE
+                       ERROR_INVALID_HANDLE
                     """.split():
             locals()[name] = rffi_platform.ConstantInteger(name)
 
@@ -126,6 +128,13 @@
 
     _get_osfhandle = rffi.llexternal('_get_osfhandle', [rffi.INT], HANDLE)
 
+    def get_osfhandle(fd):
+        validate_fd(fd)
+        handle = _get_osfhandle(fd)
+        if handle == INVALID_HANDLE_VALUE:
+            raise WindowsError(ERROR_INVALID_HANDLE, "Invalid file handle")
+        return handle
+
     def build_winerror_to_errno():
         """Build a dictionary mapping windows error numbers to POSIX errno.
         The function returns the dict, and the default value for codes not
diff --git a/pypy/rlib/streamio.py b/pypy/rlib/streamio.py
--- a/pypy/rlib/streamio.py
+++ b/pypy/rlib/streamio.py
@@ -175,24 +175,23 @@
 
 
 if sys.platform == "win32":
-    from pypy.rlib import rwin32
+    from pypy.rlib.rwin32 import BOOL, HANDLE, get_osfhandle, GetLastError
     from pypy.translator.tool.cbuild import ExternalCompilationInfo
     from pypy.rpython.lltypesystem import rffi
-    import errno
 
     _eci = ExternalCompilationInfo()
-    _get_osfhandle = rffi.llexternal('_get_osfhandle', [rffi.INT], rffi.LONG,
-                                     compilation_info=_eci)
     _setmode = rffi.llexternal('_setmode', [rffi.INT, rffi.INT], rffi.INT,
                                compilation_info=_eci)
-    SetEndOfFile = rffi.llexternal('SetEndOfFile', [rffi.LONG], rwin32.BOOL,
+    SetEndOfFile = rffi.llexternal('SetEndOfFile', [HANDLE], BOOL,
                                    compilation_info=_eci)
 
     # HACK: These implementations are specific to MSVCRT and the C backend.
     # When generating on CLI or JVM, these are patched out.
     # See PyPyTarget.target() in targetpypystandalone.py
     def _setfd_binary(fd):
-        _setmode(fd, os.O_BINARY)
+        #Allow this to succeed on invalid fd's
+        if rposix.is_valid_fd(fd):
+            _setmode(fd, os.O_BINARY)
 
     def ftruncate_win32(fd, size):
         curpos = os.lseek(fd, 0, 1)
@@ -200,11 +199,9 @@
             # move to the position to be truncated
             os.lseek(fd, size, 0)
             # Truncate.  Note that this may grow the file!
-            handle = _get_osfhandle(fd)
-            if handle == -1:
-                raise OSError(errno.EBADF, "Invalid file handle")
+            handle = get_osfhandle(fd)
             if not SetEndOfFile(handle):
-                raise WindowsError(rwin32.GetLastError(),
+                raise WindowsError(GetLastError(),
                                    "Could not truncate file")
         finally:
             # we restore the file pointer position in any case
diff --git a/pypy/rlib/test/test_rmmap.py b/pypy/rlib/test/test_rmmap.py
--- a/pypy/rlib/test/test_rmmap.py
+++ b/pypy/rlib/test/test_rmmap.py
@@ -33,8 +33,6 @@
         interpret(f, [])
 
     def test_file_size(self):
-        if os.name == "nt":
-            skip("Only Unix checks file size")
         def func(no):
 
             try:
@@ -433,15 +431,16 @@
     def test_windows_crasher_1(self):
         if sys.platform != "win32":
             skip("Windows-only test")
-
-        m = mmap.mmap(-1, 1000, tagname="foo")
-        # same tagname, but larger size
-        try:
-            m2 = mmap.mmap(-1, 5000, tagname="foo")
-            m2.getitem(4500)
-        except WindowsError:
-            pass
-        m.close()
+        def func():
+            m = mmap.mmap(-1, 1000, tagname="foo")
+            # same tagname, but larger size
+            try:
+                m2 = mmap.mmap(-1, 5000, tagname="foo")
+                m2.getitem(4500)
+            except WindowsError:
+                pass
+            m.close()
+        interpret(func, [])
 
     def test_windows_crasher_2(self):
         if sys.platform != "win32":
diff --git a/pypy/rlib/test/test_rposix.py b/pypy/rlib/test/test_rposix.py
--- a/pypy/rlib/test/test_rposix.py
+++ b/pypy/rlib/test/test_rposix.py
@@ -132,14 +132,12 @@
             except Exception:
                 pass
 
-    def test_validate_fd(self):
+    def test_is_valid_fd(self):
         if os.name != 'nt':
             skip('relevant for windows only')
-        assert rposix._validate_fd(0) == 1
+        assert rposix.is_valid_fd(0) == 1
         fid = open(str(udir.join('validate_test.txt')), 'w')
         fd = fid.fileno()
-        assert rposix._validate_fd(fd) == 1
+        assert rposix.is_valid_fd(fd) == 1
         fid.close()
-        assert rposix._validate_fd(fd) == 0
-
-
+        assert rposix.is_valid_fd(fd) == 0
diff --git a/pypy/rlib/test/test_rwin32.py b/pypy/rlib/test/test_rwin32.py
new file mode 100644
--- /dev/null
+++ b/pypy/rlib/test/test_rwin32.py
@@ -0,0 +1,28 @@
+import os
+if os.name != 'nt':
+    skip('tests for win32 only')
+
+from pypy.rlib import rwin32
+from pypy.tool.udir import udir
+
+
+def test_get_osfhandle():
+    fid = open(str(udir.join('validate_test.txt')), 'w')
+    fd = fid.fileno()
+    rwin32.get_osfhandle(fd)
+    fid.close()
+    raises(OSError, rwin32.get_osfhandle, fd)
+    rwin32.get_osfhandle(0)
+
+def test_get_osfhandle_raising():
+    #try to test what kind of exception get_osfhandle raises w/out fd validation
+    skip('Crashes python')
+    fid = open(str(udir.join('validate_test.txt')), 'w')
+    fd = fid.fileno()
+    fid.close()
+    def validate_fd(fd):
+        return 1
+    _validate_fd = rwin32.validate_fd
+    rwin32.validate_fd = validate_fd
+    raises(WindowsError, rwin32.get_osfhandle, fd)
+    rwin32.validate_fd = _validate_fd
diff --git a/pypy/rpython/llinterp.py b/pypy/rpython/llinterp.py
--- a/pypy/rpython/llinterp.py
+++ b/pypy/rpython/llinterp.py
@@ -152,7 +152,8 @@
             etype = frame.op_direct_call(exdata.fn_type_of_exc_inst, evalue)
             if etype == klass:
                 return cls
-        raise ValueError, "couldn't match exception"
+        raise ValueError("couldn't match exception, maybe it"
+                      " has RPython attributes like OSError?")
 
     def get_transformed_exc_data(self, graph):
         if hasattr(graph, 'exceptiontransformed'):
diff --git a/pypy/rpython/module/ll_os.py b/pypy/rpython/module/ll_os.py
--- a/pypy/rpython/module/ll_os.py
+++ b/pypy/rpython/module/ll_os.py
@@ -397,6 +397,7 @@
         os_dup = self.llexternal(underscore_on_windows+'dup', [rffi.INT], rffi.INT)
 
         def dup_llimpl(fd):
+            rposix.validate_fd(fd)
             newfd = rffi.cast(lltype.Signed, os_dup(rffi.cast(rffi.INT, fd)))
             if newfd == -1:
                 raise OSError(rposix.get_errno(), "dup failed")
@@ -411,6 +412,7 @@
                                   [rffi.INT, rffi.INT], rffi.INT)
 
         def dup2_llimpl(fd, newfd):
+            rposix.validate_fd(fd)
             error = rffi.cast(lltype.Signed, os_dup2(rffi.cast(rffi.INT, fd),
                                              rffi.cast(rffi.INT, newfd)))
             if error == -1:
@@ -891,6 +893,7 @@
         def os_read_llimpl(fd, count):
             if count < 0:
                 raise OSError(errno.EINVAL, None)
+            rposix.validate_fd(fd)
             raw_buf, gc_buf = rffi.alloc_buffer(count)
             try:
                 void_buf = rffi.cast(rffi.VOIDP, raw_buf)
@@ -916,6 +919,7 @@
 
         def os_write_llimpl(fd, data):
             count = len(data)
+            rposix.validate_fd(fd)
             buf = rffi.get_nonmovingbuffer(data)
             try:
                 written = rffi.cast(lltype.Signed, os_write(
@@ -940,6 +944,7 @@
                                    rffi.INT, threadsafe=False)
         
         def close_llimpl(fd):
+            rposix.validate_fd(fd)
             error = rffi.cast(lltype.Signed, os_close(rffi.cast(rffi.INT, fd)))
             if error == -1:
                 raise OSError(rposix.get_errno(), "close failed")
@@ -975,6 +980,7 @@
                                    rffi.LONGLONG)
 
         def lseek_llimpl(fd, pos, how):
+            rposix.validate_fd(fd)
             how = fix_seek_arg(how)
             res = os_lseek(rffi.cast(rffi.INT,      fd),
                            rffi.cast(rffi.LONGLONG, pos),
@@ -1000,6 +1006,7 @@
                                        [rffi.INT, rffi.LONGLONG], rffi.INT)
 
         def ftruncate_llimpl(fd, length):
+            rposix.validate_fd(fd)
             res = rffi.cast(rffi.LONG,
                             os_ftruncate(rffi.cast(rffi.INT, fd),
                                          rffi.cast(rffi.LONGLONG, length)))
@@ -1018,6 +1025,7 @@
             os_fsync = self.llexternal('_commit', [rffi.INT], rffi.INT)
 
         def fsync_llimpl(fd):
+            rposix.validate_fd(fd)
             res = rffi.cast(rffi.SIGNED, os_fsync(rffi.cast(rffi.INT, fd)))
             if res < 0:
                 raise OSError(rposix.get_errno(), "fsync failed")
@@ -1030,6 +1038,7 @@
         os_fdatasync = self.llexternal('fdatasync', [rffi.INT], rffi.INT)
 
         def fdatasync_llimpl(fd):
+            rposix.validate_fd(fd)
             res = rffi.cast(rffi.SIGNED, os_fdatasync(rffi.cast(rffi.INT, fd)))
             if res < 0:
                 raise OSError(rposix.get_errno(), "fdatasync failed")
@@ -1042,6 +1051,7 @@
         os_fchdir = self.llexternal('fchdir', [rffi.INT], rffi.INT)
 
         def fchdir_llimpl(fd):
+            rposix.validate_fd(fd)
             res = rffi.cast(rffi.SIGNED, os_fchdir(rffi.cast(rffi.INT, fd)))
             if res < 0:
                 raise OSError(rposix.get_errno(), "fchdir failed")
@@ -1357,6 +1367,7 @@
         os_isatty = self.llexternal(underscore_on_windows+'isatty', [rffi.INT], rffi.INT)
 
         def isatty_llimpl(fd):
+            rposix.validate_fd(fd)
             res = rffi.cast(lltype.Signed, os_isatty(rffi.cast(rffi.INT, fd)))
             return res != 0
 
@@ -1534,6 +1545,7 @@
         os_umask = self.llexternal(underscore_on_windows+'umask', [rffi.MODE_T], rffi.MODE_T)
 
         def umask_llimpl(fd):
+            rposix.validate_fd(fd)
             res = os_umask(rffi.cast(rffi.MODE_T, fd))
             return rffi.cast(lltype.Signed, res)
 
diff --git a/pypy/rpython/module/ll_os_stat.py b/pypy/rpython/module/ll_os_stat.py
--- a/pypy/rpython/module/ll_os_stat.py
+++ b/pypy/rpython/module/ll_os_stat.py
@@ -402,8 +402,7 @@
             lltype.free(data, flavor='raw')
 
     def win32_fstat_llimpl(fd):
-        handle = rwin32._get_osfhandle(fd)
-
+        handle = rwin32.get_osfhandle(fd)
         filetype = win32traits.GetFileType(handle)
         if filetype == win32traits.FILE_TYPE_CHAR:
             # console or LPT device
diff --git a/pypy/rpython/module/test/test_ll_os.py b/pypy/rpython/module/test/test_ll_os.py
--- a/pypy/rpython/module/test/test_ll_os.py
+++ b/pypy/rpython/module/test/test_ll_os.py
@@ -85,8 +85,10 @@
         if (len == 0) and "WINGDB_PYTHON" in os.environ:
             # the ctypes call seems not to work in the Wing debugger
             return
-        assert str(buf.value).lower() == pwd
-        # ctypes returns the drive letter in uppercase, os.getcwd does not
+        assert str(buf.value).lower() == pwd.lower()
+        # ctypes returns the drive letter in uppercase, 
+        # os.getcwd does not, 
+        # but there may be uppercase in os.getcwd path
 
     pwd = os.getcwd()
     try:
@@ -188,7 +190,67 @@
         OSError, ll_execve, "/etc/passwd", [], {})
     assert info.value.errno == errno.EACCES
 
+def test_os_write():
+    #Same as test in rpython/test/test_rbuiltin
+    fname = str(udir.join('os_test.txt'))
+    fd = os.open(fname, os.O_WRONLY|os.O_CREAT, 0777)
+    assert fd >= 0
+    f = getllimpl(os.write)
+    f(fd, 'Hello world')
+    os.close(fd)
+    with open(fname) as fid:
+        assert fid.read() == "Hello world"
+    fd = os.open(fname, os.O_WRONLY|os.O_CREAT, 0777)
+    os.close(fd)
+    raises(OSError, f, fd, 'Hello world')
 
+def test_os_close():
+    fname = str(udir.join('os_test.txt'))
+    fd = os.open(fname, os.O_WRONLY|os.O_CREAT, 0777)
+    assert fd >= 0
+    os.write(fd, 'Hello world')
+    f = getllimpl(os.close)
+    f(fd)
+    raises(OSError, f, fd)
+
+def test_os_lseek():
+    fname = str(udir.join('os_test.txt'))
+    fd = os.open(fname, os.O_RDWR|os.O_CREAT, 0777)
+    assert fd >= 0
+    os.write(fd, 'Hello world')
+    f = getllimpl(os.lseek)
+    f(fd,0,0)
+    assert os.read(fd, 11) == 'Hello world'
+    os.close(fd)
+    raises(OSError, f, fd, 0, 0)
+
+def test_os_fsync():
+    fname = str(udir.join('os_test.txt'))
+    fd = os.open(fname, os.O_WRONLY|os.O_CREAT, 0777)
+    assert fd >= 0
+    os.write(fd, 'Hello world')
+    f = getllimpl(os.fsync)
+    f(fd)
+    os.close(fd)
+    fid = open(fname)
+    assert fid.read() == 'Hello world'
+    fid.close()
+    raises(OSError, f, fd)
+
+def test_os_fdatasync():
+    try:
+        f = getllimpl(os.fdatasync)
+    except:
+        skip('No fdatasync in os')
+    fname = str(udir.join('os_test.txt'))
+    fd = os.open(fname, os.O_WRONLY|os.O_CREAT, 0777)
+    assert fd >= 0
+    os.write(fd, 'Hello world')
+    f(fd)
+    fid = open(fname)
+    assert fid.read() == 'Hello world'
+    os.close(fd)
+    raises(OSError, f, fd)
 
 class ExpectTestOs:
     def setup_class(cls):
diff --git a/pypy/rpython/test/test_llinterp.py b/pypy/rpython/test/test_llinterp.py
--- a/pypy/rpython/test/test_llinterp.py
+++ b/pypy/rpython/test/test_llinterp.py
@@ -34,7 +34,7 @@
     #start = time.time()
     res = call(*args, **kwds) 
     #elapsed = time.time() - start 
-    #print "%.2f secs" %(elapsed,)
+    #print "%.2f secs" % (elapsed,)
     return res 
 
 def gengraph(func, argtypes=[], viewbefore='auto', policy=None,
@@ -137,9 +137,9 @@
     info = py.test.raises(LLException, "interp.eval_graph(graph, values)")
     try:
         got = interp.find_exception(info.value)
-    except ValueError:
-        got = None
-    assert got is exc, "wrong exception type"
+    except ValueError as message:
+        got = 'None %r' % message
+    assert got is exc, "wrong exception type, expected %r got %r" % (exc, got)
 
 #__________________________________________________________________
 # tests
diff --git a/pypy/rpython/test/test_rbuiltin.py b/pypy/rpython/test/test_rbuiltin.py
--- a/pypy/rpython/test/test_rbuiltin.py
+++ b/pypy/rpython/test/test_rbuiltin.py
@@ -201,6 +201,9 @@
         os.close(res)
         hello = open(tmpdir).read()
         assert hello == "hello world"
+        fd = os.open(tmpdir, os.O_WRONLY|os.O_CREAT, 777)
+        os.close(fd)
+        raises(OSError, os.write, fd, "hello world")    
 
     def test_os_write_single_char(self):
         tmpdir = str(udir.udir.join("os_write_test_char"))
diff --git a/pypy/translator/c/src/main.h b/pypy/translator/c/src/main.h
--- a/pypy/translator/c/src/main.h
+++ b/pypy/translator/c/src/main.h
@@ -50,10 +50,6 @@
     }
 #endif
 
-#ifdef MS_WINDOWS
-    pypy_Windows_startup();
-#endif
-
     errmsg = RPython_StartupCode();
     if (errmsg) goto error;
 
diff --git a/pypy/translator/c/src/winstuff.c b/pypy/translator/c/src/winstuff.c
deleted file mode 100644
--- a/pypy/translator/c/src/winstuff.c
+++ /dev/null
@@ -1,37 +0,0 @@
-
-/************************************************************/
- /*****  Windows-specific stuff.                         *****/
-
-
-/* copied from CPython. */
-
-#if defined _MSC_VER && _MSC_VER >= 1400 && defined(__STDC_SECURE_LIB__)
-/* crt variable checking in VisualStudio .NET 2005 */
-#include <crtdbg.h>
-
-/* Invalid parameter handler.  Sets a ValueError exception */
-static void
-InvalidParameterHandler(
-    const wchar_t * expression,
-    const wchar_t * function,
-    const wchar_t * file,
-    unsigned int line,
-    uintptr_t pReserved)
-{
-    /* Do nothing, allow execution to continue.  Usually this
-     * means that the CRT will set errno to EINVAL
-     */
-}
-#endif
-
-
-void pypy_Windows_startup(void)
-{
-#if defined _MSC_VER && _MSC_VER >= 1400 && defined(__STDC_SECURE_LIB__)
-    /* Set CRT argument error handler */
-    _set_invalid_parameter_handler(InvalidParameterHandler);
-    /* turn off assertions within CRT in debug mode;
-       instead just return EINVAL */
-    _CrtSetReportMode(_CRT_ASSERT, 0);
-#endif
-}
diff --git a/pypy/translator/platform/__init__.py b/pypy/translator/platform/__init__.py
--- a/pypy/translator/platform/__init__.py
+++ b/pypy/translator/platform/__init__.py
@@ -299,10 +299,11 @@
 
 def set_platform(new_platform, cc):
     global platform
-    log.msg("Setting platform to %r cc=%s" % (new_platform,cc))
     platform = pick_platform(new_platform, cc)
     if not platform:
-        raise ValueError("pick_platform failed")
+        raise ValueError("pick_platform(%r, %s) failed"%(new_platform, cc))
+    log.msg("Set platform with %r cc=%s, using cc=%r" % (new_platform, cc,
+                    getattr(platform, 'cc','Unknown')))
 
     if new_platform == 'host':
         global host
diff --git a/pypy/translator/platform/windows.py b/pypy/translator/platform/windows.py
--- a/pypy/translator/platform/windows.py
+++ b/pypy/translator/platform/windows.py
@@ -83,13 +83,9 @@
 
         if env is not None:
             return env
-
     log.error("Could not find a Microsoft Compiler")
     # Assume that the compiler is already part of the environment
 
-msvc_compiler_environ32 = find_msvc_env(False)
-msvc_compiler_environ64 = find_msvc_env(True)
-
 class MsvcPlatform(Platform):
     name = "msvc"
     so_ext = 'dll'
@@ -108,10 +104,7 @@
     
     def __init__(self, cc=None, x64=False):
         self.x64 = x64
-        if x64:
-            msvc_compiler_environ = msvc_compiler_environ64
-        else:
-            msvc_compiler_environ = msvc_compiler_environ32
+        msvc_compiler_environ = find_msvc_env(x64)
         Platform.__init__(self, 'cl.exe')
         if msvc_compiler_environ:
             self.c_environ = os.environ.copy()


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