def check_numscons(minver):
    """Check that we can use numscons.

    minver is a 3 integers tuple which defines the min version."""
    try:
        import numscons
    except ImportError:
        e = get_exception()
        raise RuntimeError("importing numscons failed (error was %s), using " \
                           "scons within distutils is not possible without "
                           "this package " % str(e))

    try:
        # version_info was added in 0.10.0
        from numscons import version_info
        # Stupid me used string instead of numbers in version_info in
        # dev versions of 0.10.0
        if isinstance(version_info[0], str):
            raise ValueError("Numscons %s or above expected " \
                             "(detected 0.10.0)" % str(minver))
        # Stupid me used list instead of tuple in numscons
        version_info = tuple(version_info)
        if version_info[:3] < minver:
            raise ValueError("Numscons %s or above expected (got %s) "
                             % (str(minver), str(version_info[:3])))
    except ImportError:
        raise RuntimeError("You need numscons >= %s to build numpy "\
                           "with numscons (imported numscons path " \
                           "is %s)." % (minver, numscons.__file__))

def UnixCCompiler__compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts):
    """Compile a single source files with a Unix-style compiler."""
    # HP ad-hoc fix, see ticket 1383
    ccomp = self.compiler_so
    if ccomp[0] == 'aCC':
        # remove flags that will trigger ANSI-C mode for aCC
        if '-Ae' in ccomp:
            ccomp.remove('-Ae')
        if '-Aa' in ccomp:
            ccomp.remove('-Aa')
        # add flags for (almost) sane C++ handling
        ccomp += ['-AA']
        self.compiler_so = ccomp
    # ensure OPT environment variable is read
    if 'OPT' in os.environ:
        from distutils.sysconfig import get_config_vars
        opt = " ".join(os.environ['OPT'].split())
        gcv_opt = " ".join(get_config_vars('OPT')[0].split())
        ccomp_s = " ".join(self.compiler_so)
        if opt not in ccomp_s:
            ccomp_s = ccomp_s.replace(gcv_opt, opt)
            self.compiler_so = ccomp_s.split()
        llink_s = " ".join(self.linker_so)
        if opt not in llink_s:
            self.linker_so = llink_s.split() + opt.split()

    display = '%s: %s' % (os.path.basename(self.compiler_so[0]), src)
    try:
        self.spawn(self.compiler_so + cc_args + [src, '-o', obj] +
                   extra_postargs, display = display)
    except DistutilsExecError:
        msg = str(get_exception())
        raise CompileError(msg)

def show_fcompilers(dist=None):
    """Print list of available compilers (used by the "--help-fcompiler"
    option to "config_fc").
    """
    if dist is None:
        from distutils.dist import Distribution
        from numpy.distutils.command.config_compiler import config_fc
        dist = Distribution()
        dist.script_name = os.path.basename(sys.argv[0])
        dist.script_args = ['config_fc'] + sys.argv[1:]
        try:
            dist.script_args.remove('--help-fcompiler')
        except ValueError:
            pass
        dist.cmdclass['config_fc'] = config_fc
        dist.parse_config_files()
        dist.parse_command_line()
    compilers = []
    compilers_na = []
    compilers_ni = []
    if not fcompiler_class:
        load_all_fcompiler_classes()
    platform_compilers = available_fcompilers_for_platform()
    for compiler in platform_compilers:
        v = None
        log.set_verbosity(-2)
        try:
            c = new_fcompiler(compiler=compiler, verbose=dist.verbose)
            c.customize(dist)
            v = c.get_version()
        except (DistutilsModuleError, CompilerNotFound):
            e = get_exception()
            log.debug("show_fcompilers: %s not found" % (compiler,))
            log.debug(repr(e))

        if v is None:
            compilers_na.append(("fcompiler="+compiler, None,
                              fcompiler_class[compiler][2]))
        else:
            c.dump_properties()
            compilers.append(("fcompiler="+compiler, None,
                              fcompiler_class[compiler][2] + ' (%s)' % v))

    compilers_ni = list(set(fcompiler_class.keys()) - set(platform_compilers))
    compilers_ni = [("fcompiler="+fc, None, fcompiler_class[fc][2])
                    for fc in compilers_ni]

    compilers.sort()
    compilers_na.sort()
    compilers_ni.sort()
    pretty_printer = FancyGetopt(compilers)
    pretty_printer.print_help("Fortran compilers found:")
    pretty_printer = FancyGetopt(compilers_na)
    pretty_printer.print_help("Compilers available for this "
                              "platform, but not found:")
    if compilers_ni:
        pretty_printer = FancyGetopt(compilers_ni)
        pretty_printer.print_help("Compilers not available on this platform:")
    print("For compiler details, run 'config_fc --verbose' setup command.")

    def link(
        self,
        target_desc,
        objects,
        output_filename,
        output_dir=None,
        libraries=None,
        library_dirs=None,
        runtime_library_dirs=None,
        export_symbols=None,
        debug=0,
        extra_preargs=None,
        extra_postargs=None,
        build_temp=None,
        target_lang=None,
    ):
        objects, output_dir = self._fix_object_args(objects, output_dir)
        libraries, library_dirs, runtime_library_dirs = self._fix_lib_args(
            libraries, library_dirs, runtime_library_dirs
        )

        lib_opts = gen_lib_options(self, library_dirs, runtime_library_dirs, libraries)
        if is_string(output_dir):
            output_filename = os.path.join(output_dir, output_filename)
        elif output_dir is not None:
            raise TypeError("'output_dir' must be a string or None")

        if self._need_link(objects, output_filename):
            if self.library_switch[-1] == " ":
                o_args = [self.library_switch.strip(), output_filename]
            else:
                o_args = [self.library_switch.strip() + output_filename]

            if is_string(self.objects):
                ld_args = objects + [self.objects]
            else:
                ld_args = objects + self.objects
            ld_args = ld_args + lib_opts + o_args
            if debug:
                ld_args[:0] = ["-g"]
            if extra_preargs:
                ld_args[:0] = extra_preargs
            if extra_postargs:
                ld_args.extend(extra_postargs)
            self.mkpath(os.path.dirname(output_filename))
            if target_desc == CCompiler.EXECUTABLE:
                linker = self.linker_exe[:]
            else:
                linker = self.linker_so[:]
            command = linker + ld_args
            try:
                self.spawn(command)
            except DistutilsExecError:
                msg = str(get_exception())
                raise LinkError(msg)
        else:
            log.debug("skipping %s (up-to-date)", output_filename)

def process_file(source):
    lines = resolve_includes(source)
    sourcefile = os.path.normcase(source).replace("\\", "\\\\")
    try:
        code = process_str(''.join(lines))
    except ValueError:
        e = get_exception()
        raise ValueError('In "%s" loop at %s' % (sourcefile, e))
    return '#line 1 "%s"\n%s' % (sourcefile, code)

def UnixCCompiler__compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts):
    """Compile a single source files with a Unix-style compiler."""
    display = '%s: %s' % (os.path.basename(self.compiler_so[0]),src)
    try:
        self.spawn(self.compiler_so + cc_args + [src, '-o', obj] +
                   extra_postargs, display = display)
    except DistutilsExecError:
        msg = str(get_exception())
        raise CompileError(msg)

    def _check_compiler(self):
        old_config._check_compiler(self)
        from numpy.distutils.fcompiler import FCompiler, new_fcompiler

        if sys.platform == "win32" and self.compiler.compiler_type == "msvc":
            # XXX: hack to circumvent a python 2.6 bug with msvc9compiler:
            # initialize call query_vcvarsall, which throws an IOError, and
            # causes an error along the way without much information. We try to
            # catch it here, hoping it is early enough, and print an helpful
            # message instead of Error: None.
            if not self.compiler.initialized:
                try:
                    self.compiler.initialize()
                except IOError:
                    e = get_exception()
                    msg = """\
Could not initialize compiler instance: do you have Visual Studio
installed?  If you are trying to build with MinGW, please use "python setup.py
build -c mingw32" instead.  If you have Visual Studio installed, check it is
correctly installed, and the right version (VS 2008 for python 2.6, 2.7 and 3.2,
VS 2010 for >= 3.3).

Original exception was: %s, and the Compiler class was %s
============================================================================""" % (
                        e,
                        self.compiler.__class__.__name__,
                    )
                    print(
                        """\
============================================================================"""
                    )
                    raise distutils.errors.DistutilsPlatformError(msg)

            # After MSVC is initialized, add an explicit /MANIFEST to linker
            # flags.  See issues gh-4245 and gh-4101 for details.  Also
            # relevant are issues 4431 and 16296 on the Python bug tracker.
            from distutils import msvc9compiler

            if msvc9compiler.get_build_version() >= 10:
                for ldflags in [self.compiler.ldflags_shared, self.compiler.ldflags_shared_debug]:
                    if "/MANIFEST" not in ldflags:
                        ldflags.append("/MANIFEST")
                    if "/DEBUG" not in ldflags:
                        ldflags.append("/DEBUG")
                    if "/pdb:None" in ldflags:
                        ldflags.remove("/pdb:None")

        if not isinstance(self.fcompiler, FCompiler):
            self.fcompiler = new_fcompiler(
                compiler=self.fcompiler, dry_run=self.dry_run, force=1, c_compiler=self.compiler
            )
            if self.fcompiler is not None:
                self.fcompiler.customize(self.distribution)
                if self.fcompiler.get_version():
                    self.fcompiler.customize_cmd(self)
                    self.fcompiler.show_customization()

def getoutput(cmd, successful_status=(0,), stacklevel=1):
    try:
        status, output = getstatusoutput(cmd)
    except EnvironmentError:
        e = get_exception()
        warnings.warn(str(e), UserWarning, stacklevel=stacklevel)
        return False, output
    if os.WIFEXITED(status) and os.WEXITSTATUS(status) in successful_status:
        return True, output
    return False, output

def new_compiler (plat=None,
                  compiler=None,
                  verbose=0,
                  dry_run=0,
                  force=0):
    # Try first C compilers from numpy.distutils.
    if plat is None:
        plat = os.name
    try:
        if compiler is None:
            compiler = get_default_compiler(plat)
        (module_name, class_name, long_description) = compiler_class[compiler]
    except KeyError:
        msg = "don't know how to compile C/C++ code on platform '%s'" % plat
        if compiler is not None:
            msg = msg + " with '%s' compiler" % compiler
        raise DistutilsPlatformError(msg)
    module_name = "numpy.distutils." + module_name
    try:
        __import__ (module_name)
    except ImportError:
        msg = str(get_exception())
        log.info('%s in numpy.distutils; trying from distutils',
                 str(msg))
        module_name = module_name[6:]
        try:
            __import__(module_name)
        except ImportError:
            msg = str(get_exception())
            raise DistutilsModuleError("can't compile C/C++ code: unable to load module '%s'" % \
                  module_name)
    try:
        module = sys.modules[module_name]
        klass = vars(module)[class_name]
    except KeyError:
        raise DistutilsModuleError(("can't compile C/C++ code: unable to find class '%s' " +
               "in module '%s'") % (class_name, module_name))
    compiler = klass(None, dry_run, force)
    log.debug('new_compiler returns %s' % (klass))
    return compiler

 def _wrap_method(self, mth, lang, args):
     from distutils.ccompiler import CompileError
     from distutils.errors import DistutilsExecError
     save_compiler = self.compiler
     if lang in ['f77', 'f90']:
         self.compiler = self.fcompiler
     try:
         ret = mth(*((self,)+args))
     except (DistutilsExecError, CompileError):
         msg = str(get_exception())
         self.compiler = save_compiler
         raise CompileError
     self.compiler = save_compiler
     return ret

    def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts):
        """Compile 'src' to product 'obj'."""
        src_flags = {}
        if is_f_file(src) and not has_f90_header(src):
            flavor = ':f77'
            compiler = self.compiler_f77
            src_flags = get_f77flags(src)
            extra_compile_args = self.extra_f77_compile_args or []
        elif is_free_format(src):
            flavor = ':f90'
            compiler = self.compiler_f90
            if compiler is None:
                raise DistutilsExecError('f90 not supported by %s needed for %s'\
                      % (self.__class__.__name__, src))
            extra_compile_args = self.extra_f90_compile_args or []
        else:
            flavor = ':fix'
            compiler = self.compiler_fix
            if compiler is None:
                raise DistutilsExecError('f90 (fixed) not supported by %s needed for %s'\
                      % (self.__class__.__name__, src))
            extra_compile_args = self.extra_f90_compile_args or []
        if self.object_switch[-1]==' ':
            o_args = [self.object_switch.strip(), obj]
        else:
            o_args = [self.object_switch.strip()+obj]

        assert self.compile_switch.strip()
        s_args = [self.compile_switch, src]

        if extra_compile_args:
            log.info('extra %s options: %r' \
                     % (flavor[1:], ' '.join(extra_compile_args)))

        extra_flags = src_flags.get(self.compiler_type, [])
        if extra_flags:
            log.info('using compile options from source: %r' \
                     % ' '.join(extra_flags))

        command = compiler + cc_args + extra_flags + s_args + o_args \
                  + extra_postargs + extra_compile_args

        display = '%s: %s' % (os.path.basename(compiler[0]) + flavor,
                              src)
        try:
            self.spawn(command, display=display)
        except DistutilsExecError:
            msg = str(get_exception())
            raise CompileError(msg)

def UnixCCompiler__compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts):
    """Compile a single source files with a Unix-style compiler."""
    # HP ad-hoc fix, see ticket 1383
    ccomp = self.compiler_so
    if ccomp[0] == 'aCC':
        # remove flags that will trigger ANSI-C mode for aCC
        if '-Ae' in ccomp:
            ccomp.remove('-Ae')
        if '-Aa' in ccomp:
            ccomp.remove('-Aa')
        # add flags for (almost) sane C++ handling
        ccomp += ['-AA']
        self.compiler_so = ccomp
    # ensure OPT environment variable is read
    if 'OPT' in os.environ:
        from distutils.sysconfig import get_config_vars
        opt = " ".join(os.environ['OPT'].split())
        gcv_opt = " ".join(get_config_vars('OPT')[0].split())
        ccomp_s = " ".join(self.compiler_so)
        if opt not in ccomp_s:
            ccomp_s = ccomp_s.replace(gcv_opt, opt)
            self.compiler_so = ccomp_s.split()
        llink_s = " ".join(self.linker_so)
        if opt not in llink_s:
            self.linker_so = llink_s.split() + opt.split()

    display = '%s: %s' % (os.path.basename(self.compiler_so[0]), src)

    # gcc style automatic dependencies, outputs a makefile (-MF) that lists
    # all headers needed by a c file as a side effect of compilation (-MMD)
    if getattr(self, '_auto_depends', False):
        deps = ['-MMD', '-MF', obj + '.d']
    else:
        deps = []

    try:
        self.spawn(self.compiler_so + cc_args + [src, '-o', obj] + deps +
                   extra_postargs, display = display)
    except DistutilsExecError:
        msg = str(get_exception())
        raise CompileError(msg)

    # add commandline flags to dependency file
    if deps:
        with open(obj + '.d', 'a') as f:
            f.write(_commandline_dep_string(cc_args, extra_postargs, pp_opts))

def parse_string(astr, env, level, line) :
    lineno = "#line %d\n" % line

    # local function for string replacement, uses env
    def replace(match):
        name = match.group(1)
        try :
            val = env[name]
        except KeyError:
            msg = 'line %d: no definition of key "%s"'%(line, name)
            raise ValueError(msg)
        return val

    code = [lineno]
    struct = parse_structure(astr, level)
    if struct :
        # recurse over inner loops
        oldend = 0
        newlevel = level + 1
        for sub in struct:
            pref = astr[oldend:sub[0]]
            head = astr[sub[0]:sub[1]]
            text = astr[sub[1]:sub[2]]
            oldend = sub[3]
            newline = line + sub[4]
            code.append(replace_re.sub(replace, pref))
            try :
                envlist = parse_loop_header(head)
            except ValueError:
                e = get_exception()
                msg = "line %d: %s" % (newline, e)
                raise ValueError(msg)
            for newenv in envlist :
                newenv.update(env)
                newcode = parse_string(text, newenv, newlevel, newline)
                code.extend(newcode)
        suff = astr[oldend:]
        code.append(replace_re.sub(replace, suff))
    else :
        # replace keys
        code.append(replace_re.sub(replace, astr))
    code.append('\n')
    return ''.join(code)

def main():
    try:
        file = sys.argv[1]
    except IndexError:
        fid = sys.stdin
        outfile = sys.stdout
    else:
        fid = open(file, 'r')
        (base, ext) = os.path.splitext(file)
        newname = base
        outfile = open(newname, 'w')

    allstr = fid.read()
    try:
        writestr = process_str(allstr)
    except ValueError:
        e = get_exception()
        raise ValueError("In %s loop at %s" % (file, e))
    outfile.write(writestr)

def UnixCCompiler__compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts):
    """Compile a single source files with a Unix-style compiler."""
    # HP ad-hoc fix, see ticket 1383
    ccomp = self.compiler_so
    if ccomp[0] == "aCC":
        # remove flags that will trigger ANSI-C mode for aCC
        if "-Ae" in ccomp:
            ccomp.remove("-Ae")
        if "-Aa" in ccomp:
            ccomp.remove("-Aa")
        # add flags for (almost) sane C++ handling
        ccomp += ["-AA"]
        self.compiler_so = ccomp

    display = "%s: %s" % (os.path.basename(self.compiler_so[0]), src)
    try:
        self.spawn(self.compiler_so + cc_args + [src, "-o", obj] + extra_postargs, display=display)
    except DistutilsExecError:
        msg = str(get_exception())
        raise CompileError(msg)

    def _check_compiler(self):
        old_config._check_compiler(self)
        from numpy.distutils.fcompiler import FCompiler, new_fcompiler

        if sys.platform == "win32" and self.compiler.compiler_type == "msvc":
            # XXX: hack to circumvent a python 2.6 bug with msvc9compiler:
            # initialize call query_vcvarsall, which throws an IOError, and
            # causes an error along the way without much information. We try to
            # catch it here, hoping it is early enough, and print an helpful
            # message instead of Error: None.
            if not self.compiler.initialized:
                try:
                    self.compiler.initialize()
                except IOError:
                    e = get_exception()
                    msg = """\
Could not initialize compiler instance: do you have Visual Studio
installed ? If you are trying to build with mingw, please use python setup.py
build -c mingw32 instead ). If you have Visual Studio installed, check it is
correctly installed, and the right version (VS 2008 for python 2.6, VS 2003 for
2.5, etc...). Original exception was: %s, and the Compiler
class was %s
============================================================================""" % (
                        e,
                        self.compiler.__class__.__name__,
                    )
                    print(
                        """\
============================================================================"""
                    )
                    raise distutils.errors.DistutilsPlatformError(msg)

        if not isinstance(self.fcompiler, FCompiler):
            self.fcompiler = new_fcompiler(
                compiler=self.fcompiler, dry_run=self.dry_run, force=1, c_compiler=self.compiler
            )
            if self.fcompiler is not None:
                self.fcompiler.customize(self.distribution)
                if self.fcompiler.get_version():
                    self.fcompiler.customize_cmd(self)
                    self.fcompiler.show_customization()

 def _init_ccompiler(self, compiler_type):
     # XXX: The logic to bypass distutils is ... not so logic.
     if compiler_type == 'msvc':
         self._bypass_distutils_cc = True
     try:
         distutils_compiler = new_compiler(compiler=compiler_type,
                       verbose=self.verbose,
                       dry_run=self.dry_run,
                       force=self.force)
         distutils_compiler.customize(self.distribution)
         # This initialization seems necessary, sometimes, for find_executable to work...
         if hasattr(distutils_compiler, 'initialize'):
             distutils_compiler.initialize()
         self.scons_compiler = dist2sconscc(distutils_compiler)
         self.scons_compiler_path = protect_path(get_tool_path(distutils_compiler))
     except DistutilsPlatformError:
         e = get_exception()
         if not self._bypass_distutils_cc:
             raise e
         else:
             self.scons_compiler = compiler_type

 def __init__(self):
     if self.info is not None:
         return
     info = [ {} ]
     ok, output = getoutput('uname -m')
     if ok:
         info[0]['uname_m'] = output.strip()
     try:
         fo = open('/proc/cpuinfo')
     except EnvironmentError:
         e = get_exception()
         warnings.warn(str(e), UserWarning)
     else:
         for line in fo:
             name_value = [s.strip() for s in line.split(':', 1)]
             if len(name_value) != 2:
                 continue
             name, value = name_value
             if not info or name in info[-1]: # next processor
                 info.append({})
             info[-1][name] = value
         fo.close()
     self.__class__.info = info

    n = 1
    while not done:
        newkey = "".join([x[:n] for x in allkeys])
        if newkey in allkeys:
            n += 1
        else:
            done = True
    return newkey


if __name__ == "__main__":

    try:
        file = sys.argv[1]
    except IndexError:
        fid = sys.stdin
        outfile = sys.stdout
    else:
        fid = open(file, 'r')
        (base, ext) = os.path.splitext(file)
        newname = base
        outfile = open(newname, 'w')

    allstr = fid.read()
    try:
        writestr = process_str(allstr)
    except ValueError:
        e = get_exception()
        raise ValueError("In %s loop at %s" % (file, e))
    outfile.write(writestr)

def _exec_command( command, use_shell=None, use_tee = None, **env ):
    log.debug('_exec_command(...)')

    if use_shell is None:
        use_shell = os.name=='posix'
    if use_tee is None:
        use_tee = os.name=='posix'
    using_command = 0
    if use_shell:
        # We use shell (unless use_shell==0) so that wildcards can be
        # used.
        sh = os.environ.get('SHELL', '/bin/sh')
        if is_sequence(command):
            argv = [sh, '-c', ' '.join(list(command))]
        else:
            argv = [sh, '-c', command]
    else:
        # On NT, DOS we avoid using command.com as it's exit status is
        # not related to the exit status of a command.
        if is_sequence(command):
            argv = command[:]
        else:
            argv = shlex.split(command)

    if hasattr(os, 'spawnvpe'):
        spawn_command = os.spawnvpe
    else:
        spawn_command = os.spawnve
        argv[0] = find_executable(argv[0]) or argv[0]
        if not os.path.isfile(argv[0]):
            log.warn('Executable %s does not exist' % (argv[0]))
            if os.name in ['nt', 'dos']:
                # argv[0] might be internal command
                argv = [os.environ['COMSPEC'], '/C'] + argv
                using_command = 1

    _so_has_fileno = _supports_fileno(sys.stdout)
    _se_has_fileno = _supports_fileno(sys.stderr)
    so_flush = sys.stdout.flush
    se_flush = sys.stderr.flush
    if _so_has_fileno:
        so_fileno = sys.stdout.fileno()
        so_dup = os.dup(so_fileno)
    if _se_has_fileno:
        se_fileno = sys.stderr.fileno()
        se_dup = os.dup(se_fileno)

    outfile = temp_file_name()
    fout = open(outfile, 'w')
    if using_command:
        errfile = temp_file_name()
        ferr = open(errfile, 'w')

    log.debug('Running %s(%s,%r,%r,os.environ)' \
              % (spawn_command.__name__, os.P_WAIT, argv[0], argv))

    if sys.version_info[0] >= 3 and os.name == 'nt':
        # Pre-encode os.environ, discarding un-encodable entries,
        # to avoid it failing during encoding as part of spawn. Failure
        # is possible if the environment contains entries that are not
        # encoded using the system codepage as windows expects.
        #
        # This is not necessary on unix, where os.environ is encoded
        # using the surrogateescape error handler and decoded using
        # it as part of spawn.
        encoded_environ = {}
        for k, v in os.environ.items():
            try:
                encoded_environ[k.encode(sys.getfilesystemencoding())] = v.encode(
                    sys.getfilesystemencoding())
            except UnicodeEncodeError:
                log.debug("ignoring un-encodable env entry %s", k)
    else:
        encoded_environ = os.environ

    argv0 = argv[0]
    if not using_command:
        argv[0] = quote_arg(argv0)

    so_flush()
    se_flush()
    if _so_has_fileno:
        os.dup2(fout.fileno(), so_fileno)

    if _se_has_fileno:
        if using_command:
            #XXX: disabled for now as it does not work from cmd under win32.
            #     Tests fail on msys
            os.dup2(ferr.fileno(), se_fileno)
        else:
            os.dup2(fout.fileno(), se_fileno)
    try:
        status = spawn_command(os.P_WAIT, argv0, argv, encoded_environ)
    except Exception:
        errmess = str(get_exception())
        status = 999
        sys.stderr.write('%s: %s'%(errmess, argv[0]))

    so_flush()
    se_flush()
#.........这里部分代码省略.........