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140 lines
4.9 KiB
C
140 lines
4.9 KiB
C
/*********************************************************************************************************
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* Software License Agreement (BSD License) *
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* Author: Sebastien Decugis <sdecugis@freediameter.net> *
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* *
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* Copyright (c) 2013, WIDE Project and NICT *
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* All rights reserved. *
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* *
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* Redistribution and use of this software in source and binary forms, with or without modification, are *
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* permitted provided that the following conditions are met: *
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* *
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* * Redistributions of source code must retain the above *
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* copyright notice, this list of conditions and the *
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* following disclaimer. *
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* *
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* * Redistributions in binary form must reproduce the above *
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* copyright notice, this list of conditions and the *
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* following disclaimer in the documentation and/or other *
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* materials provided with the distribution. *
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* *
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* * Neither the name of the WIDE Project or NICT nor the *
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* names of its contributors may be used to endorse or *
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* promote products derived from this software without *
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* specific prior written permission of WIDE Project and *
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* NICT. *
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* *
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF *
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
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*********************************************************************************************************/
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#include <Python.h>
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#include <freeDiameter/extension.h>
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#include <unistd.h>
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/* wrapper generated by SWIG */
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#if PY_VERSION_HEX >= 0x03000000
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extern void PyInit__fDpy(void);
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#define WRAPPER_INIT PyInit__fDpy()
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#else /* PY_VERSION_HEX */
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extern void init_fDpy(void);
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#define WRAPPER_INIT init_fDpy()
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#endif /* PY_VERSION_HEX */
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/* The string created in the shadow proxy C string file */
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extern unsigned char fDpy_py[];
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extern unsigned int fDpy_py_len;
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/* Run an interactive interpreter in a separate thread */
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static pthread_t pyinterp = (pthread_t)NULL;
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static void * myinterp (void * arg)
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{
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char * dum[3] = { "<dbg_interactive>", arg, NULL };
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TRACE_ENTRY("%p", arg);
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fd_log_threadname ( "fDpy" );
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CHECK_FCT_DO(fd_core_waitstartcomplete(), goto end);
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if (arg) {
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fd_log_debug("Starting python interpreter with a script file [experimental].");
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Py_Main(2, dum);
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} else {
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if (!isatty(fileno(stdin)) || !isatty(fileno(stdout))) {
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TRACE_ERROR("[dbg_interactive]: this extension requires freeDiameter to be run from a console terminal!");
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goto end;
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}
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printf("Starting interactive python interpreter [experimental].\n");
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printf("Please use Ctrl-D to exit.\n");
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printf("Example syntax:\n");
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printf(" >>> print cvar.fd_g_config.cnf_diamid\n");
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printf(" '%s'\n", fd_g_config->cnf_diamid);
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Py_Main(1, dum);
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printf("Python interpreter has exited...\n");
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}
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end:
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/* Upon exit, issue the order of terminating to fD, if the interpreter was started without a file */
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if (!arg) {
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(void)fd_core_shutdown();
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}
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return NULL;
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}
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/* Register the callbacks to the daemon */
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static int di_main(char * conffile)
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{
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char * shadow_hlp = NULL;
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int mustfree = 0;
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TRACE_ENTRY("%p", conffile);
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Py_InitializeEx(0);
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WRAPPER_INIT;
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/* Small hack to avoid duplicating the string, we replace the last char by a \0.
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It works if the python file is terminated with several \n */
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if ( (fDpy_py[fDpy_py_len - 2] == '\n')
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&& (fDpy_py[fDpy_py_len - 1] == '\n')) {
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fDpy_py[fDpy_py_len - 1] = '\0';
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shadow_hlp = (char *)&fDpy_py[0];
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} else {
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CHECK_MALLOC(shadow_hlp = malloc(fDpy_py_len + 1));
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memcpy(shadow_hlp, fDpy_py, fDpy_py_len);
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shadow_hlp[fDpy_py_len] = '\0';
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mustfree=1;
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}
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PyRun_SimpleString("__file__ = \"\"\n");
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PyRun_SimpleString(shadow_hlp);
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if (mustfree)
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free(shadow_hlp);
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CHECK_POSIX( pthread_create(&pyinterp, NULL, myinterp, conffile) );
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return 0;
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}
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/* Terminate the extension */
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void fd_ext_fini(void)
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{
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TRACE_ENTRY();
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void * ret;
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/* Cleanup the python interpreter */
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Py_Finalize();
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pthread_join(pyinterp, &ret);
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return ;
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}
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/* Define the entry point function */
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EXTENSION_ENTRY("dbg_interactive", di_main);
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