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-rw-r--r--indra/llcommon/CMakeLists.txt3
-rw-r--r--indra/llcommon/indra_constants.h2
-rw-r--r--indra/llcommon/llfasttimer_class.cpp8
-rw-r--r--indra/llcommon/llthread.cpp3
-rw-r--r--indra/llcommon/llversionviewer.h2
-rw-r--r--indra/llcommon/tests/llsdserialize_test.cpp508
-rw-r--r--indra/llcommon/tests/setpython.py19
7 files changed, 524 insertions, 21 deletions
diff --git a/indra/llcommon/CMakeLists.txt b/indra/llcommon/CMakeLists.txt
index 9910281b64..c755020a64 100644
--- a/indra/llcommon/CMakeLists.txt
+++ b/indra/llcommon/CMakeLists.txt
@@ -317,7 +317,8 @@ if (LL_TESTS)
LL_ADD_INTEGRATION_TEST(lllazy "" "${test_libs}")
LL_ADD_INTEGRATION_TEST(llprocessor "" "${test_libs}")
LL_ADD_INTEGRATION_TEST(llrand "" "${test_libs}")
- LL_ADD_INTEGRATION_TEST(llsdserialize "" "${test_libs}")
+ LL_ADD_INTEGRATION_TEST(llsdserialize "" "${test_libs}"
+ "${PYTHON_EXECUTABLE}" "${CMAKE_CURRENT_SOURCE_DIR}/tests/setpython.py")
LL_ADD_INTEGRATION_TEST(llstring "" "${test_libs}")
LL_ADD_INTEGRATION_TEST(lltreeiterators "" "${test_libs}")
LL_ADD_INTEGRATION_TEST(lluri "" "${test_libs}")
diff --git a/indra/llcommon/indra_constants.h b/indra/llcommon/indra_constants.h
index d0f287657e..0745696ef3 100644
--- a/indra/llcommon/indra_constants.h
+++ b/indra/llcommon/indra_constants.h
@@ -387,8 +387,6 @@ const S32 MAP_SIM_RETURN_NULL_SIMS = 0x00010000;
const S32 MAP_SIM_PRELUDE = 0x00020000;
// Crash reporter behavior
-const char* const CRASH_SETTINGS_FILE = "settings_crash_behavior.xml";
-const char* const CRASH_BEHAVIOR_SETTING = "CrashSubmitBehavior";
const S32 CRASH_BEHAVIOR_ASK = 0;
const S32 CRASH_BEHAVIOR_ALWAYS_SEND = 1;
const S32 CRASH_BEHAVIOR_NEVER_SEND = 2;
diff --git a/indra/llcommon/llfasttimer_class.cpp b/indra/llcommon/llfasttimer_class.cpp
index bd594b06cf..675eda2fc5 100644
--- a/indra/llcommon/llfasttimer_class.cpp
+++ b/indra/llcommon/llfasttimer_class.cpp
@@ -228,6 +228,14 @@ void LLFastTimer::DeclareTimer::updateCachedPointers()
// update cached pointer
it->mFrameState = &it->mTimer.getFrameState();
}
+
+ // also update frame states of timers on stack
+ LLFastTimer* cur_timerp = LLFastTimer::sCurTimerData.mCurTimer;
+ while(cur_timerp->mLastTimerData.mCurTimer != cur_timerp)
+ {
+ cur_timerp->mFrameState = &cur_timerp->mFrameState->mTimer->getFrameState();
+ cur_timerp = cur_timerp->mLastTimerData.mCurTimer;
+ }
}
//static
diff --git a/indra/llcommon/llthread.cpp b/indra/llcommon/llthread.cpp
index d9400fb5b3..4063cc730b 100644
--- a/indra/llcommon/llthread.cpp
+++ b/indra/llcommon/llthread.cpp
@@ -323,7 +323,8 @@ LLMutex::LLMutex(apr_pool_t *poolp) :
LLMutex::~LLMutex()
{
#if MUTEX_DEBUG
- llassert_always(!isLocked()); // better not be locked!
+ //bad assertion, the subclass LLSignal might be "locked", and that's OK
+ //llassert_always(!isLocked()); // better not be locked!
#endif
apr_thread_mutex_destroy(mAPRMutexp);
mAPRMutexp = NULL;
diff --git a/indra/llcommon/llversionviewer.h b/indra/llcommon/llversionviewer.h
index 0018b8e844..f98a5398c3 100644
--- a/indra/llcommon/llversionviewer.h
+++ b/indra/llcommon/llversionviewer.h
@@ -29,7 +29,7 @@
const S32 LL_VERSION_MAJOR = 2;
const S32 LL_VERSION_MINOR = 8;
-const S32 LL_VERSION_PATCH = 1;
+const S32 LL_VERSION_PATCH = 3;
const S32 LL_VERSION_BUILD = 0;
const char * const LL_CHANNEL = "Second Life Developer";
diff --git a/indra/llcommon/tests/llsdserialize_test.cpp b/indra/llcommon/tests/llsdserialize_test.cpp
index 7b4c7d6a48..72322c3b72 100644
--- a/indra/llcommon/tests/llsdserialize_test.cpp
+++ b/indra/llcommon/tests/llsdserialize_test.cpp
@@ -25,35 +25,293 @@
* $/LicenseInfo$
*/
-#if !LL_WINDOWS
+
+#include "linden_common.h"
+
+#if LL_WINDOWS
+#include <winsock2.h>
+typedef U32 uint32_t;
+#include <process.h>
+#include <io.h>
+#else
+#include <unistd.h>
#include <netinet/in.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include "llprocesslauncher.h"
#endif
-#include "linden_common.h"
+#include <sstream>
+
+/*==========================================================================*|
+// Whoops, seems Linden's Boost package and the viewer are built with
+// different settings of VC's /Zc:wchar_t switch! Using Boost.Filesystem
+// pathname operations produces Windows link errors:
+// unresolved external symbol "private: static class std::codecvt<unsigned short,
+// char,int> const * & __cdecl boost::filesystem3::path::wchar_t_codecvt_facet()"
+// unresolved external symbol "void __cdecl boost::filesystem3::path_traits::convert()"
+// See:
+// http://boost.2283326.n4.nabble.com/filesystem-v3-unicode-and-std-codecvt-linker-error-td3455549.html
+// which points to:
+// http://msdn.microsoft.com/en-us/library/dh8che7s%28v=VS.100%29.aspx
+
+// As we're not trying to preserve compatibility with old Boost.Filesystem
+// code, but rather writing brand-new code, use the newest available
+// Filesystem API.
+#define BOOST_FILESYSTEM_VERSION 3
+#include "boost/filesystem.hpp"
+#include "boost/filesystem/v3/fstream.hpp"
+|*==========================================================================*/
+#include "boost/range.hpp"
+#include "boost/foreach.hpp"
+#include "boost/function.hpp"
+#include "boost/lambda/lambda.hpp"
+#include "boost/lambda/bind.hpp"
+namespace lambda = boost::lambda;
+/*==========================================================================*|
+// Aaaarrgh, Linden's Boost package doesn't even include Boost.Iostreams!
+#include "boost/iostreams/stream.hpp"
+#include "boost/iostreams/device/file_descriptor.hpp"
+|*==========================================================================*/
+
#include "../llsd.h"
#include "../llsdserialize.h"
+#include "llsdutil.h"
#include "../llformat.h"
#include "../test/lltut.h"
+#include "stringize.h"
+std::vector<U8> string_to_vector(const std::string& str)
+{
+ return std::vector<U8>(str.begin(), str.end());
+}
-#if LL_WINDOWS
-#include <winsock2.h>
-typedef U32 uint32_t;
-#endif
+#if ! LL_WINDOWS
+// We want to call strerror_r(), but alarmingly, there are two different
+// variants. The one that returns int always populates the passed buffer
+// (except in case of error), whereas the other one always returns a valid
+// char* but might or might not populate the passed buffer. How do we know
+// which one we're getting? Define adapters for each and let the compiler
+// select the applicable adapter.
-std::vector<U8> string_to_vector(std::string str)
+// strerror_r() returns char*
+std::string message_from(int /*orig_errno*/, const char* /*buffer*/, const char* strerror_ret)
{
- // bc LLSD can't...
- size_t len = (size_t)str.length();
- std::vector<U8> v(len);
- for (size_t i = 0; i < len ; i++)
- {
- v[i] = str[i];
- }
- return v;
+ return strerror_ret;
}
+// strerror_r() returns int
+std::string message_from(int orig_errno, const char* buffer, int strerror_ret)
+{
+ if (strerror_ret == 0)
+ {
+ return buffer;
+ }
+ // Here strerror_r() has set errno. Since strerror_r() has already failed,
+ // seems like a poor bet to call it again to diagnose its own error...
+ int stre_errno = errno;
+ if (stre_errno == ERANGE)
+ {
+ return STRINGIZE("strerror_r() can't explain errno " << orig_errno
+ << " (buffer too small)");
+ }
+ if (stre_errno == EINVAL)
+ {
+ return STRINGIZE("unknown errno " << orig_errno);
+ }
+ // Here we don't even understand the errno from strerror_r()!
+ return STRINGIZE("strerror_r() can't explain errno " << orig_errno
+ << " (error " << stre_errno << ')');
+}
+#endif // ! LL_WINDOWS
+
+// boost::filesystem::temp_directory_path() isn't yet in Boost 1.45! :-(
+std::string temp_directory_path()
+{
+#if LL_WINDOWS
+ char buffer[4096];
+ GetTempPathA(sizeof(buffer), buffer);
+ return buffer;
+
+#else // LL_DARWIN, LL_LINUX
+ static const char* vars[] = { "TMPDIR", "TMP", "TEMP", "TEMPDIR" };
+ BOOST_FOREACH(const char* var, vars)
+ {
+ const char* found = getenv(var);
+ if (found)
+ return found;
+ }
+ return "/tmp";
+#endif // LL_DARWIN, LL_LINUX
+}
+
+// Windows presents a kinda sorta compatibility layer. Code to the yucky
+// Windows names because they're less likely than the Posix names to collide
+// with any other names in this source.
+#if LL_WINDOWS
+#define _remove DeleteFileA
+#else // ! LL_WINDOWS
+#define _open open
+#define _write write
+#define _close close
+#define _remove remove
+#endif // ! LL_WINDOWS
+
+// Create a text file with specified content "somewhere in the
+// filesystem," cleaning up when it goes out of scope.
+class NamedTempFile
+{
+public:
+ // Function that accepts an ostream ref and (presumably) writes stuff to
+ // it, e.g.:
+ // (lambda::_1 << "the value is " << 17 << '\n')
+ typedef boost::function<void(std::ostream&)> Streamer;
+
+ NamedTempFile(const std::string& ext, const std::string& content):
+ mPath(temp_directory_path())
+ {
+ createFile(ext, lambda::_1 << content);
+ }
+
+ // Disambiguate when passing string literal
+ NamedTempFile(const std::string& ext, const char* content):
+ mPath(temp_directory_path())
+ {
+ createFile(ext, lambda::_1 << content);
+ }
+
+ NamedTempFile(const std::string& ext, const Streamer& func):
+ mPath(temp_directory_path())
+ {
+ createFile(ext, func);
+ }
+
+ ~NamedTempFile()
+ {
+ _remove(mPath.c_str());
+ }
+
+ std::string getName() const { return mPath; }
+
+private:
+ void createFile(const std::string& ext, const Streamer& func)
+ {
+ // Silly maybe, but use 'ext' as the name prefix. Strip off a leading
+ // '.' if present.
+ int pfx_offset = ((! ext.empty()) && ext[0] == '.')? 1 : 0;
+
+#if ! LL_WINDOWS
+ // Make sure mPath ends with a directory separator, if it doesn't already.
+ if (mPath.empty() ||
+ ! (mPath[mPath.length() - 1] == '\\' || mPath[mPath.length() - 1] == '/'))
+ {
+ mPath.append("/");
+ }
+
+ // mkstemp() accepts and modifies a char* template string. Generate
+ // the template string, then copy to modifiable storage.
+ // mkstemp() requires its template string to end in six X's.
+ mPath += ext.substr(pfx_offset) + "XXXXXX";
+ // Copy to vector<char>
+ std::vector<char> pathtemplate(mPath.begin(), mPath.end());
+ // append a nul byte for classic-C semantics
+ pathtemplate.push_back('\0');
+ // std::vector promises that a pointer to the 0th element is the same
+ // as a pointer to a contiguous classic-C array
+ int fd(mkstemp(&pathtemplate[0]));
+ if (fd == -1)
+ {
+ // The documented errno values (http://linux.die.net/man/3/mkstemp)
+ // are used in a somewhat unusual way, so provide context-specific
+ // errors.
+ if (errno == EEXIST)
+ {
+ LL_ERRS("NamedTempFile") << "mkstemp(\"" << mPath
+ << "\") could not create unique file " << LL_ENDL;
+ }
+ if (errno == EINVAL)
+ {
+ LL_ERRS("NamedTempFile") << "bad mkstemp() file path template '"
+ << mPath << "'" << LL_ENDL;
+ }
+ // Shrug, something else
+ int mkst_errno = errno;
+ char buffer[256];
+ LL_ERRS("NamedTempFile") << "mkstemp(\"" << mPath << "\") failed: "
+ << message_from(mkst_errno, buffer,
+ strerror_r(mkst_errno, buffer, sizeof(buffer)))
+ << LL_ENDL;
+ }
+ // mkstemp() seems to have worked! Capture the modified filename.
+ // Avoid the nul byte we appended.
+ mPath.assign(pathtemplate.begin(), (pathtemplate.end()-1));
+
+/*==========================================================================*|
+ // Define an ostream on the open fd. Tell it to close fd on destruction.
+ boost::iostreams::stream<boost::iostreams::file_descriptor_sink>
+ out(fd, boost::iostreams::close_handle);
+|*==========================================================================*/
+
+ // Write desired content.
+ std::ostringstream out;
+ // Stream stuff to it.
+ func(out);
+
+ std::string data(out.str());
+ int written(_write(fd, data.c_str(), data.length()));
+ int closed(_close(fd));
+ llassert_always(written == data.length() && closed == 0);
+
+#else // LL_WINDOWS
+ // GetTempFileName() is documented to require a MAX_PATH buffer.
+ char tempname[MAX_PATH];
+ // Use 'ext' as filename prefix, but skip leading '.' if any.
+ // The 0 param is very important: requests iterating until we get a
+ // unique name.
+ if (0 == GetTempFileNameA(mPath.c_str(), ext.c_str() + pfx_offset, 0, tempname))
+ {
+ // I always have to look up this call... :-P
+ LPSTR msgptr;
+ FormatMessageA(
+ FORMAT_MESSAGE_ALLOCATE_BUFFER |
+ FORMAT_MESSAGE_FROM_SYSTEM |
+ FORMAT_MESSAGE_IGNORE_INSERTS,
+ NULL,
+ GetLastError(),
+ MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+ LPSTR(&msgptr), // have to cast (char**) to (char*)
+ 0, NULL );
+ LL_ERRS("NamedTempFile") << "GetTempFileName(\"" << mPath << "\", \""
+ << (ext.c_str() + pfx_offset) << "\") failed: "
+ << msgptr << LL_ENDL;
+ LocalFree(msgptr);
+ }
+ // GetTempFileName() appears to have worked! Capture the actual
+ // filename.
+ mPath = tempname;
+ // Open the file and stream content to it. Destructor will close.
+ std::ofstream out(tempname);
+ func(out);
+
+#endif // LL_WINDOWS
+ }
+
+ void peep()
+ {
+ std::cout << "File '" << mPath << "' contains:\n";
+ std::ifstream reader(mPath.c_str());
+ std::string line;
+ while (std::getline(reader, line))
+ std::cout << line << '\n';
+ std::cout << "---\n";
+ }
+
+ std::string mPath;
+};
+
namespace tut
{
struct sd_xml_data
@@ -1494,5 +1752,223 @@ namespace tut
ensureBinaryAndNotation("map", test);
ensureBinaryAndXML("map", test);
}
-}
+ struct TestPythonCompatible
+ {
+ TestPythonCompatible():
+ // Note the peculiar insertion of __FILE__ into this string. Since
+ // this script is being written into a platform-dependent temp
+ // directory, we can't locate indra/lib/python relative to
+ // Python's __file__. Use __FILE__ instead, navigating relative
+ // to this C++ source file. Use Python raw-string syntax so
+ // Windows pathname backslashes won't mislead Python's string
+ // scanner.
+ import_llsd("import os.path\n"
+ "import sys\n"
+ "sys.path.insert(0,\n"
+ " os.path.join(os.path.dirname(r'" __FILE__ "'),\n"
+ " os.pardir, os.pardir, 'lib', 'python'))\n"
+ "try:\n"
+ " from llbase import llsd\n"
+ "except ImportError:\n"
+ " from indra.base import llsd\n")
+ {}
+ ~TestPythonCompatible() {}
+
+ std::string import_llsd;
+
+ template <typename CONTENT>
+ void python(const std::string& desc, const CONTENT& script, int expect=0)
+ {
+ const char* PYTHON(getenv("PYTHON"));
+ ensure("Set $PYTHON to the Python interpreter", PYTHON);
+
+ NamedTempFile scriptfile(".py", script);
+
+#if LL_WINDOWS
+ std::string q("\"");
+ std::string qPYTHON(q + PYTHON + q);
+ std::string qscript(q + scriptfile.getName() + q);
+ int rc = _spawnl(_P_WAIT, PYTHON, qPYTHON.c_str(), qscript.c_str(), NULL);
+ if (rc == -1)
+ {
+ char buffer[256];
+ strerror_s(buffer, errno); // C++ can infer the buffer size! :-O
+ ensure(STRINGIZE("Couldn't run Python " << desc << "script: " << buffer), false);
+ }
+ else
+ {
+ ensure_equals(STRINGIZE(desc << " script terminated with rc " << rc), rc, expect);
+ }
+
+#else // LL_DARWIN, LL_LINUX
+ LLProcessLauncher py;
+ py.setExecutable(PYTHON);
+ py.addArgument(scriptfile.getName());
+ ensure_equals(STRINGIZE("Couldn't launch " << desc << " script"), py.launch(), 0);
+ // Implementing timeout would mean messing with alarm() and
+ // catching SIGALRM... later maybe...
+ int status(0);
+ if (waitpid(py.getProcessID(), &status, 0) == -1)
+ {
+ int waitpid_errno(errno);
+ ensure_equals(STRINGIZE("Couldn't retrieve rc from " << desc << " script: "
+ "waitpid() errno " << waitpid_errno),
+ waitpid_errno, ECHILD);
+ }
+ else
+ {
+ if (WIFEXITED(status))
+ {
+ int rc(WEXITSTATUS(status));
+ ensure_equals(STRINGIZE(desc << " script terminated with rc " << rc),
+ rc, expect);
+ }
+ else if (WIFSIGNALED(status))
+ {
+ ensure(STRINGIZE(desc << " script terminated by signal " << WTERMSIG(status)),
+ false);
+ }
+ else
+ {
+ ensure(STRINGIZE(desc << " script produced impossible status " << status),
+ false);
+ }
+ }
+#endif
+ }
+ };
+
+ typedef tut::test_group<TestPythonCompatible> TestPythonCompatibleGroup;
+ typedef TestPythonCompatibleGroup::object TestPythonCompatibleObject;
+ TestPythonCompatibleGroup pycompat("LLSD serialize Python compatibility");
+
+ template<> template<>
+ void TestPythonCompatibleObject::test<1>()
+ {
+ set_test_name("verify python()");
+ python("hello",
+ "import sys\n"
+ "sys.exit(17)\n",
+ 17); // expect nonzero rc
+ }
+
+ template<> template<>
+ void TestPythonCompatibleObject::test<2>()
+ {
+ set_test_name("verify NamedTempFile");
+ python("platform",
+ "import sys\n"
+ "print 'Running on', sys.platform\n");
+ }
+
+ template<> template<>
+ void TestPythonCompatibleObject::test<3>()
+ {
+ set_test_name("verify sequence to Python");
+
+ LLSD cdata(LLSDArray(17)(3.14)
+ ("This string\n"
+ "has several\n"
+ "lines."));
+
+ const char pydata[] =
+ "def verify(iterable):\n"
+ " it = iter(iterable)\n"
+ " assert it.next() == 17\n"
+ " assert abs(it.next() - 3.14) < 0.01\n"
+ " assert it.next() == '''\\\n"
+ "This string\n"
+ "has several\n"
+ "lines.'''\n"
+ " try:\n"
+ " it.next()\n"
+ " except StopIteration:\n"
+ " pass\n"
+ " else:\n"
+ " assert False, 'Too many data items'\n";
+
+ // Create a something.llsd file containing 'data' serialized to
+ // notation. It's important to separate with newlines because Python's
+ // llsd module doesn't support parsing from a file stream, only from a
+ // string, so we have to know how much of the file to read into a
+ // string.
+ NamedTempFile file(".llsd",
+ // NamedTempFile's boost::function constructor
+ // takes a callable. To this callable it passes the
+ // std::ostream with which it's writing the
+ // NamedTempFile. This lambda-based expression
+ // first calls LLSD::Serialize() with that ostream,
+ // then streams a newline to it, etc.
+ (lambda::bind(LLSDSerialize::toNotation, cdata[0], lambda::_1),
+ lambda::_1 << '\n',
+ lambda::bind(LLSDSerialize::toNotation, cdata[1], lambda::_1),
+ lambda::_1 << '\n',
+ lambda::bind(LLSDSerialize::toNotation, cdata[2], lambda::_1),
+ lambda::_1 << '\n'));
+
+ python("read C++ notation",
+ lambda::_1 <<
+ import_llsd <<
+ "def parse_each(iterable):\n"
+ " for item in iterable:\n"
+ " yield llsd.parse(item)\n" <<
+ pydata <<
+ // Don't forget raw-string syntax for Windows pathnames.
+ "verify(parse_each(open(r'" << file.getName() << "')))\n");
+ }
+
+ template<> template<>
+ void TestPythonCompatibleObject::test<4>()
+ {
+ set_test_name("verify sequence from Python");
+
+ // Create an empty data file. This is just a placeholder for our
+ // script to write into. Create it to establish a unique name that
+ // we know.
+ NamedTempFile file(".llsd", "");
+
+ python("write Python notation",
+ lambda::_1 <<
+ "from __future__ import with_statement\n" <<
+ import_llsd <<
+ "DATA = [\n"
+ " 17,\n"
+ " 3.14,\n"
+ " '''\\\n"
+ "This string\n"
+ "has several\n"
+ "lines.''',\n"
+ "]\n"
+ // Don't forget raw-string syntax for Windows pathnames.
+ // N.B. Using 'print' implicitly adds newlines.
+ "with open(r'" << file.getName() << "', 'w') as f:\n"
+ " for item in DATA:\n"
+ " print >>f, llsd.format_notation(item)\n");
+
+ std::ifstream inf(file.getName().c_str());
+ LLSD item;
+ // Notice that we're not doing anything special to parse out the
+ // newlines: LLSDSerialize::fromNotation ignores them. While it would
+ // seem they're not strictly necessary, going in this direction, we
+ // want to ensure that notation-separated-by-newlines works in both
+ // directions -- since in practice, a given file might be read by
+ // either language.
+ ensure_equals("Failed to read LLSD::Integer from Python",
+ LLSDSerialize::fromNotation(item, inf, LLSDSerialize::SIZE_UNLIMITED),
+ 1);
+ ensure_equals(item.asInteger(), 17);
+ ensure_equals("Failed to read LLSD::Real from Python",
+ LLSDSerialize::fromNotation(item, inf, LLSDSerialize::SIZE_UNLIMITED),
+ 1);
+ ensure_approximately_equals("Bad LLSD::Real value from Python",
+ item.asReal(), 3.14, 7); // 7 bits ~= 0.01
+ ensure_equals("Failed to read LLSD::String from Python",
+ LLSDSerialize::fromNotation(item, inf, LLSDSerialize::SIZE_UNLIMITED),
+ 1);
+ ensure_equals(item.asString(),
+ "This string\n"
+ "has several\n"
+ "lines.");
+ }
+}
diff --git a/indra/llcommon/tests/setpython.py b/indra/llcommon/tests/setpython.py
new file mode 100644
index 0000000000..df7b90428e
--- /dev/null
+++ b/indra/llcommon/tests/setpython.py
@@ -0,0 +1,19 @@
+#!/usr/bin/python
+"""\
+@file setpython.py
+@author Nat Goodspeed
+@date 2011-07-13
+@brief Set PYTHON environment variable for tests that care.
+
+$LicenseInfo:firstyear=2011&license=viewerlgpl$
+Copyright (c) 2011, Linden Research, Inc.
+$/LicenseInfo$
+"""
+
+import os
+import sys
+import subprocess
+
+if __name__ == "__main__":
+ os.environ["PYTHON"] = sys.executable
+ sys.exit(subprocess.call(sys.argv[1:]))
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