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genconstants.py
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genconstants.py
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import re, sys
fd = open("src/java/jposix/Posix.java", "r")
bodylines = fd.readlines()
fd.close()
fd = open("src/c/jposix_Posix_constants.c", "w")
print >> fd, """/** @file jposix_Posix_constants.c
* @brief Constant setters for Posix.java.
*/
/* Copyright (c) 2008 Kanga International Group. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER(S), AUTHOR(S), OR CONTRIBUTOR(S) BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* GOVERNMENT USE: If you are acquiring this software on behalf of the
* U.S. government, the Government shall have only "Restricted Rights" in
* the software and related documentation as defined in the Federal
* Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2). If you are
* acquiring the software on behalf of the Department of Defense, the
* software shall be classified as "Commercial Computer Software" and the
* Government shall have only "Restricted Rights" as defined in Clause
* 252.227-7013 (c) (1) of DFARs. Notwithstanding the foregoing, the
* authors grant the U.S. Government and others acting in its behalf
* permission to use and distribute the software in accordance with the
* terms specified in this license.
*
* $Id$
*/
#include <jni.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
"""
constreg = re.compile(r"^ *public static final int ([A-Z0-9_]+); *$")
names = []
for line in bodylines:
line = line.rstrip()
match = constreg.match(line)
if match is None:
continue
name = match.group(1)
mangled = name.replace("_", "_1")
names.append(name)
print >> fd, """
JNIEXPORT jint JNICALL Java_jposix_Posix__1get_1%(mangled)s(JNIEnv *env, jclass clazz)
{
#if defined(%(name)s)
return %(name)s;
#else
return 0;
#endif
}
""" % { 'name': name, 'mangled': mangled }
# end for
fd.close()
# Replace the generated section
found = False
for start in xrange(len(bodylines)):
if "// !! start generated" in bodylines[start]:
found = True
break
if not found:
print >> sys.stderr, "Did not find start of generated section."
sys.exit(1)
found = False
for end in xrange(start + 1, len(bodylines)):
if "// !! end generated" in bodylines[end]:
found = True
break
if not found:
print >> sys.stderr, "Did not find start of generated section."
sys.exit(1)
fd = open("src/java/jposix/Posix.java", "w")
fd.write("".join(bodylines[:start+1]))
for name in names:
fd.write(" private static native int _get_%s();\n" % name)
fd.write("\n static {\n loadLibrary(\"jposix-0.1\");\n")
for name in names:
fd.write(" %s = _get_%s();\n" % (name, name))
fd.write(" }\n")
fd.write("".join(bodylines[end:]))
fd.close()