1991-02-19 12:39:46 +00:00
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/***********************************************************
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1995-01-04 19:12:13 +00:00
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Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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The Netherlands.
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1991-02-19 12:39:46 +00:00
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All Rights Reserved
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1996-10-25 14:44:06 +00:00
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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1991-02-19 12:39:46 +00:00
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provided that the above copyright notice appear in all copies and that
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1996-10-25 14:44:06 +00:00
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both that copyright notice and this permission notice appear in
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1991-02-19 12:39:46 +00:00
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supporting documentation, and that the names of Stichting Mathematisch
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1996-10-25 14:44:06 +00:00
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Centrum or CWI or Corporation for National Research Initiatives or
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CNRI not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior
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permission.
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While CWI is the initial source for this software, a modified version
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is made available by the Corporation for National Research Initiatives
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(CNRI) at the Internet address ftp://ftp.python.org.
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STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THIS SOFTWARE.
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1991-02-19 12:39:46 +00:00
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******************************************************************/
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1990-10-14 12:07:46 +00:00
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/* System module */
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/*
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Various bits of information used by the interpreter are collected in
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module 'sys'.
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1990-12-20 15:06:42 +00:00
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Function member:
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1995-03-20 15:09:40 +00:00
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- exit(sts): raise SystemExit
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1990-10-14 12:07:46 +00:00
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Data members:
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- stdin, stdout, stderr: standard file objects
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- modules: the table of modules (dictionary)
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1990-12-20 15:06:42 +00:00
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- path: module search path (list of strings)
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- argv: script arguments (list of strings)
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- ps1, ps2: optional primary and secondary prompts (strings)
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1990-10-14 12:07:46 +00:00
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*/
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1990-12-20 15:06:42 +00:00
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#include "allobjects.h"
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1990-10-14 12:07:46 +00:00
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#include "sysmodule.h"
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#include "import.h"
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#include "modsupport.h"
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1992-03-23 18:20:18 +00:00
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#include "osdefs.h"
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1990-12-20 15:06:42 +00:00
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1992-03-23 18:20:18 +00:00
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object *sys_trace, *sys_profile;
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1995-03-30 11:01:58 +00:00
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int sys_checkinterval = 10;
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1990-10-14 12:07:46 +00:00
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static object *sysdict;
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1996-09-11 23:12:24 +00:00
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#ifdef MS_COREDLL
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1996-04-09 02:37:57 +00:00
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extern void *PyWin_DLLhModule;
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#endif
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1990-10-14 12:07:46 +00:00
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object *
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sysget(name)
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char *name;
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{
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return dictlookup(sysdict, name);
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}
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FILE *
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sysgetfile(name, def)
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char *name;
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FILE *def;
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{
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FILE *fp = NULL;
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object *v = sysget(name);
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1992-09-25 21:59:05 +00:00
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if (v != NULL && is_fileobject(v))
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1990-10-14 12:07:46 +00:00
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fp = getfilefile(v);
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if (fp == NULL)
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fp = def;
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return fp;
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}
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int
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sysset(name, v)
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char *name;
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object *v;
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{
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1992-01-26 18:15:48 +00:00
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if (v == NULL) {
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if (dictlookup(sysdict, name) == NULL)
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return 0;
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else
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return dictremove(sysdict, name);
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}
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1990-10-14 12:07:46 +00:00
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else
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return dictinsert(sysdict, name, v);
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}
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static object *
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sys_exit(self, args)
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object *self;
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object *args;
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{
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1991-12-31 13:15:35 +00:00
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/* Raise SystemExit so callers may catch it or clean up. */
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err_setval(SystemExit, args);
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return NULL;
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1990-10-14 12:07:46 +00:00
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}
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1992-03-23 18:20:18 +00:00
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static object *
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sys_settrace(self, args)
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object *self;
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object *args;
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{
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if (args == None)
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args = NULL;
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1992-04-05 14:17:55 +00:00
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else
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1992-06-19 13:57:27 +00:00
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XINCREF(args);
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1992-04-05 14:17:55 +00:00
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XDECREF(sys_trace);
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1992-03-23 18:20:18 +00:00
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sys_trace = args;
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INCREF(None);
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return None;
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}
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static object *
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sys_setprofile(self, args)
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object *self;
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object *args;
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{
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if (args == None)
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args = NULL;
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1992-04-05 14:17:55 +00:00
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else
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1992-06-19 13:57:27 +00:00
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XINCREF(args);
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1992-04-05 14:17:55 +00:00
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XDECREF(sys_profile);
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1992-03-23 18:20:18 +00:00
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sys_profile = args;
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INCREF(None);
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return None;
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}
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1995-01-09 17:46:13 +00:00
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static object *
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sys_setcheckinterval(self, args)
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object *self;
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object *args;
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{
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if (!newgetargs(args, "i", &sys_checkinterval))
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return NULL;
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INCREF(None);
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return None;
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}
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1992-09-03 20:25:30 +00:00
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#ifdef USE_MALLOPT
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/* Link with -lmalloc (or -lmpc) on an SGI */
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#include <malloc.h>
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static object *
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sys_mdebug(self, args)
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object *self;
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object *args;
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{
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int flag;
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if (!getargs(args, "i", &flag))
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return NULL;
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mallopt(M_DEBUG, flag);
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INCREF(None);
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return None;
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}
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#endif /* USE_MALLOPT */
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1995-08-29 09:18:14 +00:00
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static object *
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sys_getrefcount(self, args)
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object *self;
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object *args;
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{
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object *arg;
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if (!getargs(args, "O", &arg))
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return NULL;
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return newintobject((long) arg->ob_refcnt);
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}
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#ifdef COUNT_ALLOCS
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static PyObject *
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sys_getcounts(self, args)
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PyObject *self, *args;
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{
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extern PyObject *get_counts Py_PROTO((void));
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if (!PyArg_Parse(args, ""))
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return NULL;
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return get_counts();
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}
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#endif
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1996-05-23 22:45:41 +00:00
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#ifdef Py_TRACE_REFS
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1996-05-24 20:48:31 +00:00
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/* Defined in objects.c because it uses static globals if that file */
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extern PyObject *_Py_GetObjects Py_PROTO((PyObject *, PyObject *));
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1995-08-29 09:18:14 +00:00
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#endif
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1996-05-24 20:48:31 +00:00
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1997-01-24 04:07:45 +00:00
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#ifdef DYNAMIC_EXECUTION_PROFILE
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/* Defined in ceval.c because it uses static globals if that file */
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extern PyObject *_Py_GetDXProfile Py_PROTO((PyObject *, PyObject *));
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#endif
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1990-12-20 15:06:42 +00:00
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static struct methodlist sys_methods[] = {
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1997-01-24 04:07:45 +00:00
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/* Might as well keep this in alphabetic order */
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1995-02-21 21:03:24 +00:00
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{"exit", sys_exit, 0},
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1995-08-29 09:18:14 +00:00
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#ifdef COUNT_ALLOCS
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{"getcounts", sys_getcounts, 0},
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#endif
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1997-01-24 04:07:45 +00:00
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#ifdef DYNAMIC_EXECUTION_PROFILE
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{"getdxp", _Py_GetDXProfile, 1},
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#endif
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1996-05-23 22:45:41 +00:00
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#ifdef Py_TRACE_REFS
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1996-05-24 20:48:31 +00:00
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{"getobjects", _Py_GetObjects, 1},
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1995-08-29 09:18:14 +00:00
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#endif
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1997-01-24 04:07:45 +00:00
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{"getrefcount", sys_getrefcount, 0},
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1992-09-03 20:25:30 +00:00
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#ifdef USE_MALLOPT
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1995-02-21 21:03:24 +00:00
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{"mdebug", sys_mdebug, 0},
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1992-09-03 20:25:30 +00:00
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#endif
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1997-01-24 04:07:45 +00:00
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{"setcheckinterval", sys_setcheckinterval, 1},
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1995-02-21 21:03:24 +00:00
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{"setprofile", sys_setprofile, 0},
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{"settrace", sys_settrace, 0},
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1990-12-20 15:06:42 +00:00
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{NULL, NULL} /* sentinel */
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};
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1990-10-14 12:07:46 +00:00
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static object *sysin, *sysout, *syserr;
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1993-01-26 13:33:44 +00:00
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static object *
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list_builtin_module_names()
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{
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object *list = newlistobject(0);
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int i;
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if (list == NULL)
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return NULL;
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for (i = 0; inittab[i].name != NULL; i++) {
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object *name = newstringobject(inittab[i].name);
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if (name == NULL)
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break;
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addlistitem(list, name);
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DECREF(name);
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}
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1994-08-30 08:27:36 +00:00
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if (sortlist(list) != 0) {
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DECREF(list);
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list = NULL;
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}
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1997-01-06 22:55:54 +00:00
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if (list) {
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object *v = listtuple(list);
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DECREF(list);
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list = v;
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}
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1993-01-26 13:33:44 +00:00
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return list;
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}
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1990-10-14 12:07:46 +00:00
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void
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1990-12-20 15:06:42 +00:00
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initsys()
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1990-10-14 12:07:46 +00:00
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{
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1994-08-30 08:27:36 +00:00
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extern long getmaxint PROTO((void));
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extern char *getversion PROTO((void));
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extern char *getcopyright PROTO((void));
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1995-07-07 22:45:02 +00:00
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extern char *getplatform PROTO((void));
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1996-06-17 17:02:48 +00:00
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extern char *Py_GetPrefix PROTO((void));
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extern char *Py_GetExecPrefix PROTO((void));
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1991-06-04 19:40:59 +00:00
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extern int fclose PROTO((FILE *));
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1990-12-20 15:06:42 +00:00
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object *m = initmodule("sys", sys_methods);
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1994-08-30 08:27:36 +00:00
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object *v;
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1990-12-20 15:06:42 +00:00
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sysdict = getmoduledict(m);
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INCREF(sysdict);
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1990-10-14 12:07:46 +00:00
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/* NB keep an extra ref to the std files to avoid closing them
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when the user deletes them */
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1991-06-04 19:40:59 +00:00
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sysin = newopenfileobject(stdin, "<stdin>", "r", fclose);
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sysout = newopenfileobject(stdout, "<stdout>", "w", fclose);
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syserr = newopenfileobject(stderr, "<stderr>", "w", fclose);
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1990-10-14 12:07:46 +00:00
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if (err_occurred())
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1994-08-30 08:27:36 +00:00
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fatal("can't initialize sys.std{in,out,err}");
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1990-10-14 12:07:46 +00:00
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dictinsert(sysdict, "stdin", sysin);
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dictinsert(sysdict, "stdout", sysout);
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dictinsert(sysdict, "stderr", syserr);
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1994-08-30 08:27:36 +00:00
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dictinsert(sysdict, "version", v = newstringobject(getversion()));
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XDECREF(v);
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dictinsert(sysdict, "copyright", v = newstringobject(getcopyright()));
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XDECREF(v);
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1995-07-07 22:45:02 +00:00
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dictinsert(sysdict, "platform", v = newstringobject(getplatform()));
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XDECREF(v);
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1996-06-17 17:02:48 +00:00
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dictinsert(sysdict, "prefix", v = newstringobject(Py_GetPrefix()));
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XDECREF(v);
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dictinsert(sysdict, "exec_prefix",
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v = newstringobject(Py_GetExecPrefix()));
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XDECREF(v);
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1994-08-30 08:27:36 +00:00
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dictinsert(sysdict, "maxint", v = newintobject(getmaxint()));
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XDECREF(v);
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1990-12-20 15:06:42 +00:00
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dictinsert(sysdict, "modules", get_modules());
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1993-01-26 13:33:44 +00:00
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dictinsert(sysdict, "builtin_module_names",
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1995-01-02 19:04:15 +00:00
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v = list_builtin_module_names());
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XDECREF(v);
|
1996-08-23 18:14:47 +00:00
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#ifdef MS_COREDLL
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1996-04-09 02:37:57 +00:00
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dictinsert(sysdict, "dllhandle", v = newintobject((int)PyWin_DLLhModule));
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XDECREF(v);
|
1996-08-23 18:14:47 +00:00
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dictinsert(sysdict, "winver", v = newstringobject(MS_DLL_ID));
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1996-04-09 02:37:57 +00:00
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XDECREF(v);
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#endif
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1990-10-14 12:07:46 +00:00
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if (err_occurred())
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fatal("can't insert sys.* objects in sys dict");
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1990-11-18 17:41:40 +00:00
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}
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1990-12-20 15:06:42 +00:00
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static object *
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makepathobject(path, delim)
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char *path;
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int delim;
|
1990-11-18 17:41:40 +00:00
|
|
|
{
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1990-12-20 15:06:42 +00:00
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int i, n;
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char *p;
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object *v, *w;
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n = 1;
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p = path;
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while ((p = strchr(p, delim)) != NULL) {
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n++;
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p++;
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}
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v = newlistobject(n);
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|
if (v == NULL)
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|
return NULL;
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|
for (i = 0; ; i++) {
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|
p = strchr(path, delim);
|
|
|
|
if (p == NULL)
|
|
|
|
p = strchr(path, '\0'); /* End of string */
|
|
|
|
w = newsizedstringobject(path, (int) (p - path));
|
|
|
|
if (w == NULL) {
|
|
|
|
DECREF(v);
|
|
|
|
return NULL;
|
1990-11-18 17:41:40 +00:00
|
|
|
}
|
1990-12-20 15:06:42 +00:00
|
|
|
setlistitem(v, i, w);
|
|
|
|
if (*p == '\0')
|
|
|
|
break;
|
|
|
|
path = p+1;
|
1990-11-18 17:41:40 +00:00
|
|
|
}
|
1990-12-20 15:06:42 +00:00
|
|
|
return v;
|
1990-10-14 12:07:46 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
1990-12-20 15:06:42 +00:00
|
|
|
setpythonpath(path)
|
|
|
|
char *path;
|
1990-10-14 12:07:46 +00:00
|
|
|
{
|
1990-12-20 15:06:42 +00:00
|
|
|
object *v;
|
|
|
|
if ((v = makepathobject(path, DELIM)) == NULL)
|
|
|
|
fatal("can't create sys.path");
|
|
|
|
if (sysset("path", v) != 0)
|
|
|
|
fatal("can't assign sys.path");
|
|
|
|
DECREF(v);
|
|
|
|
}
|
|
|
|
|
|
|
|
static object *
|
|
|
|
makeargvobject(argc, argv)
|
|
|
|
int argc;
|
|
|
|
char **argv;
|
|
|
|
{
|
|
|
|
object *av;
|
1992-01-14 18:42:53 +00:00
|
|
|
if (argc <= 0 || argv == NULL) {
|
|
|
|
/* Ensure at least one (empty) argument is seen */
|
|
|
|
static char *empty_argv[1] = {""};
|
|
|
|
argv = empty_argv;
|
|
|
|
argc = 1;
|
|
|
|
}
|
1990-12-20 15:06:42 +00:00
|
|
|
av = newlistobject(argc);
|
|
|
|
if (av != NULL) {
|
1990-11-18 17:41:40 +00:00
|
|
|
int i;
|
1990-12-20 15:06:42 +00:00
|
|
|
for (i = 0; i < argc; i++) {
|
|
|
|
object *v = newstringobject(argv[i]);
|
|
|
|
if (v == NULL) {
|
|
|
|
DECREF(av);
|
|
|
|
av = NULL;
|
|
|
|
break;
|
1990-11-18 17:41:40 +00:00
|
|
|
}
|
1990-12-20 15:06:42 +00:00
|
|
|
setlistitem(av, i, v);
|
1990-11-18 17:41:40 +00:00
|
|
|
}
|
|
|
|
}
|
1990-12-20 15:06:42 +00:00
|
|
|
return av;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
setpythonargv(argc, argv)
|
|
|
|
int argc;
|
|
|
|
char **argv;
|
|
|
|
{
|
|
|
|
object *av = makeargvobject(argc, argv);
|
1996-07-30 20:35:50 +00:00
|
|
|
object *path = sysget("path");
|
1990-12-20 15:06:42 +00:00
|
|
|
if (av == NULL)
|
|
|
|
fatal("no mem for sys.argv");
|
|
|
|
if (sysset("argv", av) != 0)
|
|
|
|
fatal("can't assign sys.argv");
|
1996-07-30 20:35:50 +00:00
|
|
|
if (path != NULL) {
|
|
|
|
char *p = NULL;
|
1996-09-10 14:44:21 +00:00
|
|
|
int n = 0;
|
1996-07-30 20:35:50 +00:00
|
|
|
object *a;
|
1996-09-10 14:44:21 +00:00
|
|
|
#if SEP == '\\' /* Special case for MS filename syntax */
|
|
|
|
if (argc > 0 && argv[0] != NULL) {
|
|
|
|
char *q;
|
|
|
|
p = strrchr(argv[0], SEP);
|
|
|
|
/* Test for alternate separator */
|
|
|
|
q = strrchr(p ? p : argv[0], '/');
|
|
|
|
if (q != NULL)
|
|
|
|
p = q;
|
|
|
|
if (p != NULL) {
|
|
|
|
n = p + 1 - argv[0];
|
|
|
|
if (n > 1 && p[-1] != ':')
|
|
|
|
n--; /* Drop trailing separator */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#else /* All other filename syntaxes */
|
1996-07-30 20:35:50 +00:00
|
|
|
if (argc > 0 && argv[0] != NULL)
|
|
|
|
p = strrchr(argv[0], SEP);
|
1996-09-10 14:44:21 +00:00
|
|
|
if (p != NULL) {
|
1996-07-30 20:35:50 +00:00
|
|
|
n = p + 1 - argv[0];
|
1996-09-10 14:44:21 +00:00
|
|
|
#if SEP == '/' /* Special case for Unix filename syntax */
|
|
|
|
if (n > 1)
|
|
|
|
n--; /* Drop trailing separator */
|
|
|
|
#endif /* Unix */
|
|
|
|
}
|
|
|
|
#endif /* All others */
|
1996-07-30 20:35:50 +00:00
|
|
|
a = newsizedstringobject(argv[0], n);
|
|
|
|
if (a == NULL)
|
|
|
|
fatal("no mem for sys.path insertion");
|
|
|
|
if (inslistitem(path, 0, a) < 0)
|
|
|
|
fatal("sys.path.insert(0) failed");
|
|
|
|
DECREF(a);
|
1996-07-24 01:31:37 +00:00
|
|
|
}
|
1990-12-20 15:06:42 +00:00
|
|
|
DECREF(av);
|
1990-10-14 12:07:46 +00:00
|
|
|
}
|