Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | 6d023c9 | 1995-01-04 19:12:13 +0000 | [diff] [blame] | 2 | Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam, |
| 3 | The Netherlands. |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 4 | |
| 5 | All Rights Reserved |
| 6 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 9 | provided that the above copyright notice appear in all copies and that |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 10 | both that copyright notice and this permission notice appear in |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 11 | supporting documentation, and that the names of Stichting Mathematisch |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 12 | Centrum or CWI or Corporation for National Research Initiatives or |
| 13 | CNRI not be used in advertising or publicity pertaining to |
| 14 | distribution of the software without specific, written prior |
| 15 | permission. |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 16 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 17 | While CWI is the initial source for this software, a modified version |
| 18 | is made available by the Corporation for National Research Initiatives |
| 19 | (CNRI) at the Internet address ftp://ftp.python.org. |
| 20 | |
| 21 | STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH |
| 22 | REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF |
| 23 | MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH |
| 24 | CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL |
| 25 | DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 26 | PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 27 | TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 28 | PERFORMANCE OF THIS SOFTWARE. |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 29 | |
| 30 | ******************************************************************/ |
| 31 | |
| 32 | /* Python interpreter top-level routines, including init/exit */ |
| 33 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 34 | #include "Python.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 35 | |
| 36 | #include "grammar.h" |
| 37 | #include "node.h" |
| 38 | #include "parsetok.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 39 | #include "errcode.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 40 | #include "compile.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 41 | #include "eval.h" |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 42 | #include "marshal.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 43 | |
Guido van Rossum | 80bb965 | 1996-12-05 23:27:02 +0000 | [diff] [blame] | 44 | #ifdef HAVE_UNISTD_H |
| 45 | #include <unistd.h> |
| 46 | #endif |
| 47 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 48 | #ifdef HAVE_SIGNAL_H |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 49 | #include <signal.h> |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 50 | #endif |
| 51 | |
Guido van Rossum | 9b38a14 | 1996-09-11 23:12:24 +0000 | [diff] [blame] | 52 | #ifdef MS_WIN32 |
Guido van Rossum | a44823b | 1995-03-14 15:01:17 +0000 | [diff] [blame] | 53 | #undef BYTE |
| 54 | #include "windows.h" |
| 55 | #endif |
| 56 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 57 | extern char *Py_GetPath(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 58 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 59 | extern grammar _PyParser_Grammar; /* From graminit.c */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 60 | |
Guido van Rossum | b73cc04 | 1993-11-01 16:28:59 +0000 | [diff] [blame] | 61 | /* Forward */ |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 62 | static void initmain Py_PROTO((void)); |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 63 | static void initsite Py_PROTO((void)); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 64 | static PyObject *run_err_node Py_PROTO((node *n, char *filename, |
| 65 | PyObject *globals, PyObject *locals)); |
| 66 | static PyObject *run_node Py_PROTO((node *n, char *filename, |
| 67 | PyObject *globals, PyObject *locals)); |
| 68 | static PyObject *run_pyc_file Py_PROTO((FILE *fp, char *filename, |
| 69 | PyObject *globals, PyObject *locals)); |
| 70 | static void err_input Py_PROTO((perrdetail *)); |
| 71 | static void initsigs Py_PROTO((void)); |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 72 | static void call_sys_exitfunc Py_PROTO((void)); |
| 73 | static void call_ll_exitfuncs Py_PROTO((void)); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 74 | |
Guido van Rossum | bffd683 | 2000-01-20 22:32:56 +0000 | [diff] [blame] | 75 | #ifdef Py_TRACE_REFS |
| 76 | int _Py_AskYesNo(char *prompt); |
| 77 | #endif |
| 78 | |
Guido van Rossum | c94044c | 2000-03-10 23:03:54 +0000 | [diff] [blame] | 79 | extern void _PyUnicode_Init(); |
| 80 | extern void _PyUnicode_Fini(); |
| 81 | extern void _PyCodecRegistry_Init(); |
| 82 | extern void _PyCodecRegistry_Fini(); |
| 83 | |
| 84 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 85 | int Py_DebugFlag; /* Needed by parser.c */ |
| 86 | int Py_VerboseFlag; /* Needed by import.c */ |
Guido van Rossum | 7433b12 | 1997-02-14 19:45:36 +0000 | [diff] [blame] | 87 | int Py_InteractiveFlag; /* Needed by Py_FdIsInteractive() below */ |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 88 | int Py_NoSiteFlag; /* Suppress 'import site' */ |
Guido van Rossum | 999e5e9 | 1997-10-03 19:46:02 +0000 | [diff] [blame] | 89 | int Py_UseClassExceptionsFlag = 1; /* Needed by bltinmodule.c */ |
Guido van Rossum | a61691e | 1998-02-06 22:27:24 +0000 | [diff] [blame] | 90 | int Py_FrozenFlag; /* Needed by getpath.c */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 91 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 92 | static int initialized = 0; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 93 | |
Guido van Rossum | e3c0d5e | 1997-08-22 04:20:13 +0000 | [diff] [blame] | 94 | /* API to access the initialized flag -- useful for eroteric use */ |
| 95 | |
| 96 | int |
| 97 | Py_IsInitialized() |
| 98 | { |
| 99 | return initialized; |
| 100 | } |
| 101 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 102 | /* Global initializations. Can be undone by Py_Finalize(). Don't |
| 103 | call this twice without an intervening Py_Finalize() call. When |
| 104 | initializations fail, a fatal error is issued and the function does |
| 105 | not return. On return, the first thread and interpreter state have |
| 106 | been created. |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 107 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 108 | Locking: you must hold the interpreter lock while calling this. |
| 109 | (If the lock has not yet been initialized, that's equivalent to |
| 110 | having the lock, but you cannot use multiple threads.) |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 111 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 112 | */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 113 | |
| 114 | void |
| 115 | Py_Initialize() |
| 116 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 117 | PyInterpreterState *interp; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 118 | PyThreadState *tstate; |
| 119 | PyObject *bimod, *sysmod; |
Guido van Rossum | ad6dfda | 1997-07-19 19:17:22 +0000 | [diff] [blame] | 120 | char *p; |
Guido van Rossum | ad6dfda | 1997-07-19 19:17:22 +0000 | [diff] [blame] | 121 | |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 122 | if (initialized) |
Guido van Rossum | aa61505 | 1997-08-20 22:40:18 +0000 | [diff] [blame] | 123 | return; |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 124 | initialized = 1; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 125 | |
Guido van Rossum | ad6dfda | 1997-07-19 19:17:22 +0000 | [diff] [blame] | 126 | if ((p = getenv("PYTHONDEBUG")) && *p != '\0') |
| 127 | Py_DebugFlag = 1; |
| 128 | if ((p = getenv("PYTHONVERBOSE")) && *p != '\0') |
| 129 | Py_VerboseFlag = 1; |
Guido van Rossum | 562f5b1 | 1998-10-07 14:50:42 +0000 | [diff] [blame] | 130 | if ((p = getenv("PYTHONOPTIMIZE")) && *p != '\0') |
| 131 | Py_OptimizeFlag = 1; |
Guido van Rossum | ad6dfda | 1997-07-19 19:17:22 +0000 | [diff] [blame] | 132 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 133 | interp = PyInterpreterState_New(); |
| 134 | if (interp == NULL) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 135 | Py_FatalError("Py_Initialize: can't make first interpreter"); |
Guido van Rossum | ad6dfda | 1997-07-19 19:17:22 +0000 | [diff] [blame] | 136 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 137 | tstate = PyThreadState_New(interp); |
| 138 | if (tstate == NULL) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 139 | Py_FatalError("Py_Initialize: can't make first thread"); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 140 | (void) PyThreadState_Swap(tstate); |
| 141 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 142 | interp->modules = PyDict_New(); |
| 143 | if (interp->modules == NULL) |
| 144 | Py_FatalError("Py_Initialize: can't make modules dictionary"); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 145 | |
Guido van Rossum | c94044c | 2000-03-10 23:03:54 +0000 | [diff] [blame] | 146 | /* Init codec registry */ |
| 147 | _PyCodecRegistry_Init(); |
| 148 | |
| 149 | /* Init Unicode implementation; relies on the codec registry */ |
| 150 | _PyUnicode_Init(); |
| 151 | |
Jeremy Hylton | 4a3dd2d | 2000-04-14 19:13:24 +0000 | [diff] [blame] | 152 | _PyCompareState_Key = PyString_InternFromString("cmp_state"); |
| 153 | |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 154 | bimod = _PyBuiltin_Init_1(); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 155 | if (bimod == NULL) |
| 156 | Py_FatalError("Py_Initialize: can't initialize __builtin__"); |
Guido van Rossum | 4a1f39a | 1997-11-04 19:36:18 +0000 | [diff] [blame] | 157 | interp->builtins = PyModule_GetDict(bimod); |
| 158 | Py_INCREF(interp->builtins); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 159 | |
| 160 | sysmod = _PySys_Init(); |
| 161 | if (sysmod == NULL) |
| 162 | Py_FatalError("Py_Initialize: can't initialize sys"); |
| 163 | interp->sysdict = PyModule_GetDict(sysmod); |
| 164 | Py_INCREF(interp->sysdict); |
| 165 | _PyImport_FixupExtension("sys", "sys"); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 166 | PySys_SetPath(Py_GetPath()); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 167 | PyDict_SetItemString(interp->sysdict, "modules", |
| 168 | interp->modules); |
| 169 | |
Guido van Rossum | 7c85ab8 | 1999-07-08 17:26:56 +0000 | [diff] [blame] | 170 | _PyImport_Init(); |
| 171 | |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 172 | /* phase 2 of builtins */ |
Guido van Rossum | 4a1f39a | 1997-11-04 19:36:18 +0000 | [diff] [blame] | 173 | _PyBuiltin_Init_2(interp->builtins); |
Barry Warsaw | 963b871 | 1997-09-18 16:42:02 +0000 | [diff] [blame] | 174 | _PyImport_FixupExtension("__builtin__", "__builtin__"); |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 175 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 176 | initsigs(); /* Signal handling stuff, including initintr() */ |
| 177 | |
| 178 | initmain(); /* Module __main__ */ |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 179 | if (!Py_NoSiteFlag) |
| 180 | initsite(); /* Module site */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 181 | } |
| 182 | |
Guido van Rossum | 2edcf0d | 1998-12-15 16:12:00 +0000 | [diff] [blame] | 183 | #ifdef COUNT_ALLOCS |
| 184 | extern void dump_counts Py_PROTO((void)); |
| 185 | #endif |
| 186 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 187 | /* Undo the effect of Py_Initialize(). |
| 188 | |
| 189 | Beware: if multiple interpreter and/or thread states exist, these |
| 190 | are not wiped out; only the current thread and interpreter state |
| 191 | are deleted. But since everything else is deleted, those other |
| 192 | interpreter and thread states should no longer be used. |
| 193 | |
| 194 | (XXX We should do better, e.g. wipe out all interpreters and |
| 195 | threads.) |
| 196 | |
| 197 | Locking: as above. |
| 198 | |
| 199 | */ |
| 200 | |
| 201 | void |
| 202 | Py_Finalize() |
| 203 | { |
| 204 | PyInterpreterState *interp; |
| 205 | PyThreadState *tstate; |
| 206 | |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 207 | if (!initialized) |
Guido van Rossum | aa61505 | 1997-08-20 22:40:18 +0000 | [diff] [blame] | 208 | return; |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 209 | initialized = 0; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 210 | |
Guido van Rossum | 4cc462e | 1998-01-19 22:00:38 +0000 | [diff] [blame] | 211 | call_sys_exitfunc(); |
| 212 | |
Guido van Rossum | 3a44e1b | 1997-11-03 21:58:47 +0000 | [diff] [blame] | 213 | /* Get current thread state and interpreter pointer */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 214 | tstate = PyThreadState_Get(); |
| 215 | interp = tstate->interp; |
| 216 | |
Guido van Rossum | 3a44e1b | 1997-11-03 21:58:47 +0000 | [diff] [blame] | 217 | /* Disable signal handling */ |
| 218 | PyOS_FiniInterrupts(); |
| 219 | |
| 220 | /* Destroy PyExc_MemoryErrorInst */ |
| 221 | _PyBuiltin_Fini_1(); |
| 222 | |
Guido van Rossum | c94044c | 2000-03-10 23:03:54 +0000 | [diff] [blame] | 223 | /* Cleanup Unicode implementation */ |
| 224 | _PyUnicode_Fini(); |
| 225 | |
| 226 | /* Cleanup Codec registry */ |
| 227 | _PyCodecRegistry_Fini(); |
| 228 | |
Guido van Rossum | 3a44e1b | 1997-11-03 21:58:47 +0000 | [diff] [blame] | 229 | /* Destroy all modules */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 230 | PyImport_Cleanup(); |
Guido van Rossum | 3a44e1b | 1997-11-03 21:58:47 +0000 | [diff] [blame] | 231 | |
Guido van Rossum | 1707aad | 1997-12-08 23:43:45 +0000 | [diff] [blame] | 232 | /* Destroy the database used by _PyImport_{Fixup,Find}Extension */ |
| 233 | _PyImport_Fini(); |
| 234 | |
| 235 | /* Debugging stuff */ |
| 236 | #ifdef COUNT_ALLOCS |
| 237 | dump_counts(); |
| 238 | #endif |
| 239 | |
| 240 | #ifdef Py_REF_DEBUG |
| 241 | fprintf(stderr, "[%ld refs]\n", _Py_RefTotal); |
| 242 | #endif |
| 243 | |
| 244 | #ifdef Py_TRACE_REFS |
Guido van Rossum | eca4784 | 2000-04-27 23:44:15 +0000 | [diff] [blame] | 245 | if ( |
| 246 | #ifdef MS_WINDOWS /* Only ask on Windows if env var set */ |
| 247 | getenv("PYTHONDUMPREFS") && |
| 248 | #endif /* MS_WINDOWS */ |
| 249 | _Py_AskYesNo("Print left references?")) { |
Guido van Rossum | 1707aad | 1997-12-08 23:43:45 +0000 | [diff] [blame] | 250 | _Py_PrintReferences(stderr); |
| 251 | } |
| 252 | #endif /* Py_TRACE_REFS */ |
| 253 | |
Guido van Rossum | 4a1f39a | 1997-11-04 19:36:18 +0000 | [diff] [blame] | 254 | /* Delete current thread */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 255 | PyInterpreterState_Clear(interp); |
| 256 | PyThreadState_Swap(NULL); |
| 257 | PyInterpreterState_Delete(interp); |
| 258 | |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 259 | /* Now we decref the exception classes. After this point nothing |
| 260 | can raise an exception. That's okay, because each Fini() method |
| 261 | below has been checked to make sure no exceptions are ever |
| 262 | raised. |
| 263 | */ |
| 264 | _PyBuiltin_Fini_2(); |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 265 | PyMethod_Fini(); |
| 266 | PyFrame_Fini(); |
| 267 | PyCFunction_Fini(); |
| 268 | PyTuple_Fini(); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 269 | PyString_Fini(); |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 270 | PyInt_Fini(); |
| 271 | PyFloat_Fini(); |
| 272 | |
| 273 | /* XXX Still allocated: |
| 274 | - various static ad-hoc pointers to interned strings |
| 275 | - int and float free list blocks |
| 276 | - whatever various modules and libraries allocate |
| 277 | */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 278 | |
| 279 | PyGrammar_RemoveAccelerators(&_PyParser_Grammar); |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 280 | |
| 281 | call_ll_exitfuncs(); |
| 282 | |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 283 | #ifdef Py_TRACE_REFS |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 284 | _Py_ResetReferences(); |
| 285 | #endif /* Py_TRACE_REFS */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 286 | } |
| 287 | |
| 288 | /* Create and initialize a new interpreter and thread, and return the |
| 289 | new thread. This requires that Py_Initialize() has been called |
| 290 | first. |
| 291 | |
| 292 | Unsuccessful initialization yields a NULL pointer. Note that *no* |
| 293 | exception information is available even in this case -- the |
| 294 | exception information is held in the thread, and there is no |
| 295 | thread. |
| 296 | |
| 297 | Locking: as above. |
| 298 | |
| 299 | */ |
| 300 | |
| 301 | PyThreadState * |
| 302 | Py_NewInterpreter() |
| 303 | { |
| 304 | PyInterpreterState *interp; |
| 305 | PyThreadState *tstate, *save_tstate; |
| 306 | PyObject *bimod, *sysmod; |
| 307 | |
| 308 | if (!initialized) |
| 309 | Py_FatalError("Py_NewInterpreter: call Py_Initialize first"); |
| 310 | |
| 311 | interp = PyInterpreterState_New(); |
| 312 | if (interp == NULL) |
| 313 | return NULL; |
| 314 | |
| 315 | tstate = PyThreadState_New(interp); |
| 316 | if (tstate == NULL) { |
| 317 | PyInterpreterState_Delete(interp); |
| 318 | return NULL; |
| 319 | } |
| 320 | |
| 321 | save_tstate = PyThreadState_Swap(tstate); |
| 322 | |
| 323 | /* XXX The following is lax in error checking */ |
| 324 | |
| 325 | interp->modules = PyDict_New(); |
| 326 | |
| 327 | bimod = _PyImport_FindExtension("__builtin__", "__builtin__"); |
| 328 | if (bimod != NULL) { |
Guido van Rossum | 4a1f39a | 1997-11-04 19:36:18 +0000 | [diff] [blame] | 329 | interp->builtins = PyModule_GetDict(bimod); |
| 330 | Py_INCREF(interp->builtins); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 331 | } |
| 332 | sysmod = _PyImport_FindExtension("sys", "sys"); |
| 333 | if (bimod != NULL && sysmod != NULL) { |
| 334 | interp->sysdict = PyModule_GetDict(sysmod); |
| 335 | Py_INCREF(interp->sysdict); |
| 336 | PySys_SetPath(Py_GetPath()); |
| 337 | PyDict_SetItemString(interp->sysdict, "modules", |
| 338 | interp->modules); |
| 339 | initmain(); |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 340 | if (!Py_NoSiteFlag) |
| 341 | initsite(); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 342 | } |
| 343 | |
| 344 | if (!PyErr_Occurred()) |
| 345 | return tstate; |
| 346 | |
| 347 | /* Oops, it didn't work. Undo it all. */ |
| 348 | |
| 349 | PyErr_Print(); |
| 350 | PyThreadState_Clear(tstate); |
| 351 | PyThreadState_Swap(save_tstate); |
| 352 | PyThreadState_Delete(tstate); |
| 353 | PyInterpreterState_Delete(interp); |
| 354 | |
| 355 | return NULL; |
| 356 | } |
| 357 | |
| 358 | /* Delete an interpreter and its last thread. This requires that the |
| 359 | given thread state is current, that the thread has no remaining |
| 360 | frames, and that it is its interpreter's only remaining thread. |
| 361 | It is a fatal error to violate these constraints. |
| 362 | |
| 363 | (Py_Finalize() doesn't have these constraints -- it zaps |
| 364 | everything, regardless.) |
| 365 | |
| 366 | Locking: as above. |
| 367 | |
| 368 | */ |
| 369 | |
| 370 | void |
| 371 | Py_EndInterpreter(tstate) |
| 372 | PyThreadState *tstate; |
| 373 | { |
| 374 | PyInterpreterState *interp = tstate->interp; |
| 375 | |
| 376 | if (tstate != PyThreadState_Get()) |
| 377 | Py_FatalError("Py_EndInterpreter: thread is not current"); |
| 378 | if (tstate->frame != NULL) |
| 379 | Py_FatalError("Py_EndInterpreter: thread still has a frame"); |
| 380 | if (tstate != interp->tstate_head || tstate->next != NULL) |
| 381 | Py_FatalError("Py_EndInterpreter: not the last thread"); |
| 382 | |
| 383 | PyImport_Cleanup(); |
| 384 | PyInterpreterState_Clear(interp); |
| 385 | PyThreadState_Swap(NULL); |
| 386 | PyInterpreterState_Delete(interp); |
Guido van Rossum | ad6dfda | 1997-07-19 19:17:22 +0000 | [diff] [blame] | 387 | } |
| 388 | |
| 389 | static char *progname = "python"; |
| 390 | |
| 391 | void |
| 392 | Py_SetProgramName(pn) |
| 393 | char *pn; |
| 394 | { |
| 395 | if (pn && *pn) |
| 396 | progname = pn; |
| 397 | } |
| 398 | |
| 399 | char * |
| 400 | Py_GetProgramName() |
| 401 | { |
| 402 | return progname; |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 403 | } |
| 404 | |
Guido van Rossum | a61691e | 1998-02-06 22:27:24 +0000 | [diff] [blame] | 405 | static char *default_home = NULL; |
| 406 | |
| 407 | void |
| 408 | Py_SetPythonHome(home) |
| 409 | char *home; |
| 410 | { |
| 411 | default_home = home; |
| 412 | } |
| 413 | |
| 414 | char * |
| 415 | Py_GetPythonHome() |
| 416 | { |
| 417 | char *home = default_home; |
| 418 | if (home == NULL) |
| 419 | home = getenv("PYTHONHOME"); |
| 420 | return home; |
| 421 | } |
| 422 | |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 423 | /* Create __main__ module */ |
| 424 | |
| 425 | static void |
| 426 | initmain() |
| 427 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 428 | PyObject *m, *d; |
| 429 | m = PyImport_AddModule("__main__"); |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 430 | if (m == NULL) |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 431 | Py_FatalError("can't create __main__ module"); |
| 432 | d = PyModule_GetDict(m); |
| 433 | if (PyDict_GetItemString(d, "__builtins__") == NULL) { |
Guido van Rossum | 858cb73 | 1997-11-19 16:15:37 +0000 | [diff] [blame] | 434 | PyObject *bimod = PyImport_ImportModule("__builtin__"); |
| 435 | if (bimod == NULL || |
| 436 | PyDict_SetItemString(d, "__builtins__", bimod) != 0) |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 437 | Py_FatalError("can't add __builtins__ to __main__"); |
Barry Warsaw | 3d05b1a | 1999-01-29 21:30:22 +0000 | [diff] [blame] | 438 | Py_DECREF(bimod); |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 439 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 440 | } |
| 441 | |
Guido van Rossum | dcc0c13 | 1997-08-29 22:32:42 +0000 | [diff] [blame] | 442 | /* Import the site module (not into __main__ though) */ |
| 443 | |
| 444 | static void |
| 445 | initsite() |
| 446 | { |
| 447 | PyObject *m, *f; |
| 448 | m = PyImport_ImportModule("site"); |
| 449 | if (m == NULL) { |
| 450 | f = PySys_GetObject("stderr"); |
| 451 | if (Py_VerboseFlag) { |
| 452 | PyFile_WriteString( |
| 453 | "'import site' failed; traceback:\n", f); |
| 454 | PyErr_Print(); |
| 455 | } |
| 456 | else { |
| 457 | PyFile_WriteString( |
| 458 | "'import site' failed; use -v for traceback\n", f); |
| 459 | PyErr_Clear(); |
| 460 | } |
| 461 | } |
| 462 | else { |
| 463 | Py_DECREF(m); |
| 464 | } |
| 465 | } |
| 466 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 467 | /* Parse input from a file and execute it */ |
| 468 | |
| 469 | int |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 470 | PyRun_AnyFile(fp, filename) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 471 | FILE *fp; |
| 472 | char *filename; |
| 473 | { |
| 474 | if (filename == NULL) |
| 475 | filename = "???"; |
Guido van Rossum | 7433b12 | 1997-02-14 19:45:36 +0000 | [diff] [blame] | 476 | if (Py_FdIsInteractive(fp, filename)) |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 477 | return PyRun_InteractiveLoop(fp, filename); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 478 | else |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 479 | return PyRun_SimpleFile(fp, filename); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 480 | } |
| 481 | |
| 482 | int |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 483 | PyRun_InteractiveLoop(fp, filename) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 484 | FILE *fp; |
| 485 | char *filename; |
| 486 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 487 | PyObject *v; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 488 | int ret; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 489 | v = PySys_GetObject("ps1"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 490 | if (v == NULL) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 491 | PySys_SetObject("ps1", v = PyString_FromString(">>> ")); |
| 492 | Py_XDECREF(v); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 493 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 494 | v = PySys_GetObject("ps2"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 495 | if (v == NULL) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 496 | PySys_SetObject("ps2", v = PyString_FromString("... ")); |
| 497 | Py_XDECREF(v); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 498 | } |
| 499 | for (;;) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 500 | ret = PyRun_InteractiveOne(fp, filename); |
Guido van Rossum | aae0d32 | 1996-05-22 16:35:33 +0000 | [diff] [blame] | 501 | #ifdef Py_REF_DEBUG |
Guido van Rossum | 6f9e433 | 1995-03-29 16:57:48 +0000 | [diff] [blame] | 502 | fprintf(stderr, "[%ld refs]\n", _Py_RefTotal); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 503 | #endif |
| 504 | if (ret == E_EOF) |
| 505 | return 0; |
| 506 | /* |
| 507 | if (ret == E_NOMEM) |
| 508 | return -1; |
| 509 | */ |
| 510 | } |
| 511 | } |
| 512 | |
| 513 | int |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 514 | PyRun_InteractiveOne(fp, filename) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 515 | FILE *fp; |
| 516 | char *filename; |
| 517 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 518 | PyObject *m, *d, *v, *w; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 519 | node *n; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 520 | perrdetail err; |
Guido van Rossum | ddc3fb5 | 1997-11-25 20:58:13 +0000 | [diff] [blame] | 521 | char *ps1 = "", *ps2 = ""; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 522 | v = PySys_GetObject("ps1"); |
Guido van Rossum | ddc3fb5 | 1997-11-25 20:58:13 +0000 | [diff] [blame] | 523 | if (v != NULL) { |
| 524 | v = PyObject_Str(v); |
| 525 | if (v == NULL) |
| 526 | PyErr_Clear(); |
| 527 | else if (PyString_Check(v)) |
| 528 | ps1 = PyString_AsString(v); |
| 529 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 530 | w = PySys_GetObject("ps2"); |
Guido van Rossum | ddc3fb5 | 1997-11-25 20:58:13 +0000 | [diff] [blame] | 531 | if (w != NULL) { |
| 532 | w = PyObject_Str(w); |
| 533 | if (w == NULL) |
| 534 | PyErr_Clear(); |
| 535 | else if (PyString_Check(w)) |
| 536 | ps2 = PyString_AsString(w); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 537 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 538 | n = PyParser_ParseFile(fp, filename, &_PyParser_Grammar, |
Guido van Rossum | b05a5c7 | 1997-05-07 17:46:13 +0000 | [diff] [blame] | 539 | Py_single_input, ps1, ps2, &err); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 540 | Py_XDECREF(v); |
| 541 | Py_XDECREF(w); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 542 | if (n == NULL) { |
| 543 | if (err.error == E_EOF) { |
| 544 | if (err.text) |
| 545 | free(err.text); |
| 546 | return E_EOF; |
| 547 | } |
| 548 | err_input(&err); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 549 | PyErr_Print(); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 550 | return err.error; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 551 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 552 | m = PyImport_AddModule("__main__"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 553 | if (m == NULL) |
| 554 | return -1; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 555 | d = PyModule_GetDict(m); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 556 | v = run_node(n, filename, d, d); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 557 | if (v == NULL) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 558 | PyErr_Print(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 559 | return -1; |
| 560 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 561 | Py_DECREF(v); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 562 | if (Py_FlushLine()) |
| 563 | PyErr_Clear(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 564 | return 0; |
| 565 | } |
| 566 | |
| 567 | int |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 568 | PyRun_SimpleFile(fp, filename) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 569 | FILE *fp; |
| 570 | char *filename; |
| 571 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 572 | PyObject *m, *d, *v; |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 573 | char *ext; |
| 574 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 575 | m = PyImport_AddModule("__main__"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 576 | if (m == NULL) |
| 577 | return -1; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 578 | d = PyModule_GetDict(m); |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 579 | ext = filename + strlen(filename) - 4; |
Guido van Rossum | 2a7f58d | 1997-04-02 05:28:38 +0000 | [diff] [blame] | 580 | if (strcmp(ext, ".pyc") == 0 || strcmp(ext, ".pyo") == 0 |
Jack Jansen | bd06e96 | 1995-02-13 11:44:56 +0000 | [diff] [blame] | 581 | #ifdef macintosh |
| 582 | /* On a mac, we also assume a pyc file for types 'PYC ' and 'APPL' */ |
Guido van Rossum | 2a7f58d | 1997-04-02 05:28:38 +0000 | [diff] [blame] | 583 | || getfiletype(filename) == 'PYC ' |
| 584 | || getfiletype(filename) == 'APPL' |
Jack Jansen | bd06e96 | 1995-02-13 11:44:56 +0000 | [diff] [blame] | 585 | #endif /* macintosh */ |
Guido van Rossum | 2a7f58d | 1997-04-02 05:28:38 +0000 | [diff] [blame] | 586 | ) { |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 587 | /* Try to run a pyc file. First, re-open in binary */ |
Jack Jansen | e00637b | 1994-12-14 12:58:37 +0000 | [diff] [blame] | 588 | /* Don't close, done in main: fclose(fp); */ |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 589 | if( (fp = fopen(filename, "rb")) == NULL ) { |
| 590 | fprintf(stderr, "python: Can't reopen .pyc file\n"); |
| 591 | return -1; |
| 592 | } |
Guido van Rossum | 2a7f58d | 1997-04-02 05:28:38 +0000 | [diff] [blame] | 593 | /* Turn on optimization if a .pyo file is given */ |
| 594 | if (strcmp(ext, ".pyo") == 0) |
| 595 | Py_OptimizeFlag = 1; |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 596 | v = run_pyc_file(fp, filename, d, d); |
| 597 | } else { |
Guido van Rossum | b05a5c7 | 1997-05-07 17:46:13 +0000 | [diff] [blame] | 598 | v = PyRun_File(fp, filename, Py_file_input, d, d); |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 599 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 600 | if (v == NULL) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 601 | PyErr_Print(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 602 | return -1; |
| 603 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 604 | Py_DECREF(v); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 605 | if (Py_FlushLine()) |
| 606 | PyErr_Clear(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 607 | return 0; |
| 608 | } |
| 609 | |
| 610 | int |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 611 | PyRun_SimpleString(command) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 612 | char *command; |
| 613 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 614 | PyObject *m, *d, *v; |
| 615 | m = PyImport_AddModule("__main__"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 616 | if (m == NULL) |
| 617 | return -1; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 618 | d = PyModule_GetDict(m); |
Guido van Rossum | b05a5c7 | 1997-05-07 17:46:13 +0000 | [diff] [blame] | 619 | v = PyRun_String(command, Py_file_input, d, d); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 620 | if (v == NULL) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 621 | PyErr_Print(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 622 | return -1; |
| 623 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 624 | Py_DECREF(v); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 625 | if (Py_FlushLine()) |
| 626 | PyErr_Clear(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 627 | return 0; |
| 628 | } |
| 629 | |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 630 | static int |
| 631 | parse_syntax_error(err, message, filename, lineno, offset, text) |
| 632 | PyObject* err; |
| 633 | PyObject** message; |
| 634 | char** filename; |
| 635 | int* lineno; |
| 636 | int* offset; |
| 637 | char** text; |
| 638 | { |
| 639 | long hold; |
| 640 | PyObject *v; |
| 641 | |
| 642 | /* old style errors */ |
| 643 | if (PyTuple_Check(err)) |
| 644 | return PyArg_Parse(err, "(O(ziiz))", message, filename, |
| 645 | lineno, offset, text); |
| 646 | |
| 647 | /* new style errors. `err' is an instance */ |
| 648 | |
| 649 | if (! (v = PyObject_GetAttrString(err, "msg"))) |
| 650 | goto finally; |
| 651 | *message = v; |
| 652 | |
| 653 | if (!(v = PyObject_GetAttrString(err, "filename"))) |
| 654 | goto finally; |
| 655 | if (v == Py_None) |
| 656 | *filename = NULL; |
| 657 | else if (! (*filename = PyString_AsString(v))) |
| 658 | goto finally; |
| 659 | |
| 660 | Py_DECREF(v); |
| 661 | if (!(v = PyObject_GetAttrString(err, "lineno"))) |
| 662 | goto finally; |
| 663 | hold = PyInt_AsLong(v); |
| 664 | Py_DECREF(v); |
| 665 | v = NULL; |
| 666 | if (hold < 0 && PyErr_Occurred()) |
| 667 | goto finally; |
| 668 | *lineno = (int)hold; |
| 669 | |
| 670 | if (!(v = PyObject_GetAttrString(err, "offset"))) |
| 671 | goto finally; |
| 672 | hold = PyInt_AsLong(v); |
| 673 | Py_DECREF(v); |
| 674 | v = NULL; |
| 675 | if (hold < 0 && PyErr_Occurred()) |
| 676 | goto finally; |
| 677 | *offset = (int)hold; |
| 678 | |
| 679 | if (!(v = PyObject_GetAttrString(err, "text"))) |
| 680 | goto finally; |
| 681 | if (v == Py_None) |
| 682 | *text = NULL; |
| 683 | else if (! (*text = PyString_AsString(v))) |
| 684 | goto finally; |
| 685 | Py_DECREF(v); |
| 686 | return 1; |
| 687 | |
| 688 | finally: |
| 689 | Py_XDECREF(v); |
| 690 | return 0; |
| 691 | } |
| 692 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 693 | void |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 694 | PyErr_Print() |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 695 | { |
Guido van Rossum | a61691e | 1998-02-06 22:27:24 +0000 | [diff] [blame] | 696 | PyErr_PrintEx(1); |
| 697 | } |
| 698 | |
| 699 | void |
| 700 | PyErr_PrintEx(set_sys_last_vars) |
| 701 | int set_sys_last_vars; |
| 702 | { |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 703 | int err = 0; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 704 | PyObject *exception, *v, *tb, *f; |
| 705 | PyErr_Fetch(&exception, &v, &tb); |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 706 | PyErr_NormalizeException(&exception, &v, &tb); |
| 707 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 708 | if (exception == NULL) |
Guido van Rossum | 296b475 | 1997-05-23 00:19:20 +0000 | [diff] [blame] | 709 | return; |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 710 | |
Barry Warsaw | 36b8f94 | 1997-08-26 18:09:48 +0000 | [diff] [blame] | 711 | if (PyErr_GivenExceptionMatches(exception, PyExc_SystemExit)) { |
Guido van Rossum | 0829c75 | 1998-02-28 04:31:39 +0000 | [diff] [blame] | 712 | if (Py_FlushLine()) |
| 713 | PyErr_Clear(); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 714 | fflush(stdout); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 715 | if (v == NULL || v == Py_None) |
| 716 | Py_Exit(0); |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 717 | if (PyInstance_Check(v)) { |
| 718 | /* we expect the error code to be store in the |
| 719 | `code' attribute |
| 720 | */ |
| 721 | PyObject *code = PyObject_GetAttrString(v, "code"); |
| 722 | if (code) { |
| 723 | Py_DECREF(v); |
| 724 | v = code; |
Guido van Rossum | aa9606f | 1997-10-03 13:53:28 +0000 | [diff] [blame] | 725 | if (v == Py_None) |
| 726 | Py_Exit(0); |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 727 | } |
| 728 | /* if we failed to dig out the "code" attribute, |
| 729 | then just let the else clause below print the |
| 730 | error |
| 731 | */ |
| 732 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 733 | if (PyInt_Check(v)) |
| 734 | Py_Exit((int)PyInt_AsLong(v)); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 735 | else { |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 736 | /* OK to use real stderr here */ |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 737 | PyObject_Print(v, stderr, Py_PRINT_RAW); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 738 | fprintf(stderr, "\n"); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 739 | Py_Exit(1); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 740 | } |
| 741 | } |
Guido van Rossum | a61691e | 1998-02-06 22:27:24 +0000 | [diff] [blame] | 742 | if (set_sys_last_vars) { |
| 743 | PySys_SetObject("last_type", exception); |
| 744 | PySys_SetObject("last_value", v); |
| 745 | PySys_SetObject("last_traceback", tb); |
| 746 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 747 | f = PySys_GetObject("stderr"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 748 | if (f == NULL) |
| 749 | fprintf(stderr, "lost sys.stderr\n"); |
| 750 | else { |
Guido van Rossum | 0829c75 | 1998-02-28 04:31:39 +0000 | [diff] [blame] | 751 | if (Py_FlushLine()) |
| 752 | PyErr_Clear(); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 753 | fflush(stdout); |
Guido van Rossum | 0829c75 | 1998-02-28 04:31:39 +0000 | [diff] [blame] | 754 | err = PyTraceBack_Print(tb, f); |
Barry Warsaw | 36b8f94 | 1997-08-26 18:09:48 +0000 | [diff] [blame] | 755 | if (err == 0 && |
| 756 | PyErr_GivenExceptionMatches(exception, PyExc_SyntaxError)) |
| 757 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 758 | PyObject *message; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 759 | char *filename, *text; |
| 760 | int lineno, offset; |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 761 | if (!parse_syntax_error(v, &message, &filename, |
| 762 | &lineno, &offset, &text)) |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 763 | PyErr_Clear(); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 764 | else { |
| 765 | char buf[10]; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 766 | PyFile_WriteString(" File \"", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 767 | if (filename == NULL) |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 768 | PyFile_WriteString("<string>", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 769 | else |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 770 | PyFile_WriteString(filename, f); |
| 771 | PyFile_WriteString("\", line ", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 772 | sprintf(buf, "%d", lineno); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 773 | PyFile_WriteString(buf, f); |
| 774 | PyFile_WriteString("\n", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 775 | if (text != NULL) { |
Guido van Rossum | 798199d | 1994-09-19 08:08:50 +0000 | [diff] [blame] | 776 | char *nl; |
| 777 | if (offset > 0 && |
Guido van Rossum | 478e718 | 1997-05-06 15:24:59 +0000 | [diff] [blame] | 778 | offset == (int)strlen(text)) |
Guido van Rossum | 798199d | 1994-09-19 08:08:50 +0000 | [diff] [blame] | 779 | offset--; |
| 780 | for (;;) { |
| 781 | nl = strchr(text, '\n'); |
| 782 | if (nl == NULL || |
| 783 | nl-text >= offset) |
| 784 | break; |
| 785 | offset -= (nl+1-text); |
| 786 | text = nl+1; |
| 787 | } |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 788 | while (*text == ' ' || *text == '\t') { |
| 789 | text++; |
| 790 | offset--; |
| 791 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 792 | PyFile_WriteString(" ", f); |
| 793 | PyFile_WriteString(text, f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 794 | if (*text == '\0' || |
| 795 | text[strlen(text)-1] != '\n') |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 796 | PyFile_WriteString("\n", f); |
| 797 | PyFile_WriteString(" ", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 798 | offset--; |
| 799 | while (offset > 0) { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 800 | PyFile_WriteString(" ", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 801 | offset--; |
| 802 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 803 | PyFile_WriteString("^\n", f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 804 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 805 | Py_INCREF(message); |
| 806 | Py_DECREF(v); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 807 | v = message; |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 808 | /* Can't be bothered to check all those |
| 809 | PyFile_WriteString() calls */ |
| 810 | if (PyErr_Occurred()) |
| 811 | err = -1; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 812 | } |
| 813 | } |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 814 | if (err) { |
| 815 | /* Don't do anything else */ |
| 816 | } |
| 817 | else if (PyClass_Check(exception)) { |
Barry Warsaw | 2f5f6a2 | 1997-09-16 21:42:03 +0000 | [diff] [blame] | 818 | PyClassObject* exc = (PyClassObject*)exception; |
| 819 | PyObject* className = exc->cl_name; |
| 820 | PyObject* moduleName = |
| 821 | PyDict_GetItemString(exc->cl_dict, "__module__"); |
| 822 | |
| 823 | if (moduleName == NULL) |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 824 | err = PyFile_WriteString("<unknown>", f); |
Barry Warsaw | 2f5f6a2 | 1997-09-16 21:42:03 +0000 | [diff] [blame] | 825 | else { |
| 826 | char* modstr = PyString_AsString(moduleName); |
| 827 | if (modstr && strcmp(modstr, "exceptions")) |
| 828 | { |
| 829 | err = PyFile_WriteString(modstr, f); |
| 830 | err += PyFile_WriteString(".", f); |
| 831 | } |
| 832 | } |
| 833 | if (err == 0) { |
| 834 | if (className == NULL) |
| 835 | err = PyFile_WriteString("<unknown>", f); |
| 836 | else |
| 837 | err = PyFile_WriteObject(className, f, |
| 838 | Py_PRINT_RAW); |
| 839 | } |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 840 | } |
| 841 | else |
| 842 | err = PyFile_WriteObject(exception, f, Py_PRINT_RAW); |
| 843 | if (err == 0) { |
| 844 | if (v != NULL && v != Py_None) { |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 845 | PyObject *s = PyObject_Str(v); |
| 846 | /* only print colon if the str() of the |
| 847 | object is not the empty string |
| 848 | */ |
Guido van Rossum | d6bf45b | 1997-09-05 19:11:53 +0000 | [diff] [blame] | 849 | if (s == NULL) |
| 850 | err = -1; |
| 851 | else if (!PyString_Check(s) || |
| 852 | PyString_GET_SIZE(s) != 0) |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 853 | err = PyFile_WriteString(": ", f); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 854 | if (err == 0) |
Guido van Rossum | d6bf45b | 1997-09-05 19:11:53 +0000 | [diff] [blame] | 855 | err = PyFile_WriteObject(s, f, Py_PRINT_RAW); |
| 856 | Py_XDECREF(s); |
Guido van Rossum | 262e124 | 1995-02-07 15:30:45 +0000 | [diff] [blame] | 857 | } |
Guido van Rossum | 262e124 | 1995-02-07 15:30:45 +0000 | [diff] [blame] | 858 | } |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 859 | if (err == 0) |
| 860 | err = PyFile_WriteString("\n", f); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 861 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 862 | Py_XDECREF(exception); |
| 863 | Py_XDECREF(v); |
| 864 | Py_XDECREF(tb); |
Guido van Rossum | 78a1ed3 | 1997-05-22 22:35:04 +0000 | [diff] [blame] | 865 | /* If an error happened here, don't show it. |
| 866 | XXX This is wrong, but too many callers rely on this behavior. */ |
| 867 | if (err != 0) |
| 868 | PyErr_Clear(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 869 | } |
| 870 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 871 | PyObject * |
| 872 | PyRun_String(str, start, globals, locals) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 873 | char *str; |
| 874 | int start; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 875 | PyObject *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 876 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 877 | return run_err_node(PyParser_SimpleParseString(str, start), |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 878 | "<string>", globals, locals); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 879 | } |
| 880 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 881 | PyObject * |
| 882 | PyRun_File(fp, filename, start, globals, locals) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 883 | FILE *fp; |
| 884 | char *filename; |
| 885 | int start; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 886 | PyObject *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 887 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 888 | return run_err_node(PyParser_SimpleParseFile(fp, filename, start), |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 889 | filename, globals, locals); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 890 | } |
| 891 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 892 | static PyObject * |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 893 | run_err_node(n, filename, globals, locals) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 894 | node *n; |
| 895 | char *filename; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 896 | PyObject *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 897 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 898 | if (n == NULL) |
| 899 | return NULL; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 900 | return run_node(n, filename, globals, locals); |
| 901 | } |
| 902 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 903 | static PyObject * |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 904 | run_node(n, filename, globals, locals) |
| 905 | node *n; |
| 906 | char *filename; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 907 | PyObject *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 908 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 909 | PyCodeObject *co; |
| 910 | PyObject *v; |
| 911 | co = PyNode_Compile(n, filename); |
| 912 | PyNode_Free(n); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 913 | if (co == NULL) |
| 914 | return NULL; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 915 | v = PyEval_EvalCode(co, globals, locals); |
| 916 | Py_DECREF(co); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 917 | return v; |
| 918 | } |
| 919 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 920 | static PyObject * |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 921 | run_pyc_file(fp, filename, globals, locals) |
| 922 | FILE *fp; |
| 923 | char *filename; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 924 | PyObject *globals, *locals; |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 925 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 926 | PyCodeObject *co; |
| 927 | PyObject *v; |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 928 | long magic; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 929 | long PyImport_GetMagicNumber(); |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 930 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 931 | magic = PyMarshal_ReadLongFromFile(fp); |
| 932 | if (magic != PyImport_GetMagicNumber()) { |
| 933 | PyErr_SetString(PyExc_RuntimeError, |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 934 | "Bad magic number in .pyc file"); |
| 935 | return NULL; |
| 936 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 937 | (void) PyMarshal_ReadLongFromFile(fp); |
| 938 | v = PyMarshal_ReadObjectFromFile(fp); |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 939 | fclose(fp); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 940 | if (v == NULL || !PyCode_Check(v)) { |
| 941 | Py_XDECREF(v); |
| 942 | PyErr_SetString(PyExc_RuntimeError, |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 943 | "Bad code object in .pyc file"); |
| 944 | return NULL; |
| 945 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 946 | co = (PyCodeObject *)v; |
| 947 | v = PyEval_EvalCode(co, globals, locals); |
| 948 | Py_DECREF(co); |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 949 | return v; |
| 950 | } |
| 951 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 952 | PyObject * |
| 953 | Py_CompileString(str, filename, start) |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 954 | char *str; |
| 955 | char *filename; |
| 956 | int start; |
| 957 | { |
| 958 | node *n; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 959 | PyCodeObject *co; |
| 960 | n = PyParser_SimpleParseString(str, start); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 961 | if (n == NULL) |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 962 | return NULL; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 963 | co = PyNode_Compile(n, filename); |
| 964 | PyNode_Free(n); |
| 965 | return (PyObject *)co; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 966 | } |
| 967 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 968 | /* Simplified interface to parsefile -- return node or set exception */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 969 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 970 | node * |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 971 | PyParser_SimpleParseFile(fp, filename, start) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 972 | FILE *fp; |
| 973 | char *filename; |
| 974 | int start; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 975 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 976 | node *n; |
| 977 | perrdetail err; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 978 | n = PyParser_ParseFile(fp, filename, &_PyParser_Grammar, start, |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 979 | (char *)0, (char *)0, &err); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 980 | if (n == NULL) |
| 981 | err_input(&err); |
| 982 | return n; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 983 | } |
| 984 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 985 | /* Simplified interface to parsestring -- return node or set exception */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 986 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 987 | node * |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 988 | PyParser_SimpleParseString(str, start) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 989 | char *str; |
| 990 | int start; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 991 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 992 | node *n; |
| 993 | perrdetail err; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 994 | n = PyParser_ParseString(str, &_PyParser_Grammar, start, &err); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 995 | if (n == NULL) |
| 996 | err_input(&err); |
| 997 | return n; |
| 998 | } |
| 999 | |
| 1000 | /* Set the error appropriate to the given input error code (see errcode.h) */ |
| 1001 | |
| 1002 | static void |
| 1003 | err_input(err) |
| 1004 | perrdetail *err; |
| 1005 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1006 | PyObject *v, *w; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1007 | char *msg = NULL; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1008 | v = Py_BuildValue("(ziiz)", err->filename, |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1009 | err->lineno, err->offset, err->text); |
| 1010 | if (err->text != NULL) { |
| 1011 | free(err->text); |
| 1012 | err->text = NULL; |
| 1013 | } |
| 1014 | switch (err->error) { |
| 1015 | case E_SYNTAX: |
| 1016 | msg = "invalid syntax"; |
| 1017 | break; |
| 1018 | case E_TOKEN: |
| 1019 | msg = "invalid token"; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1020 | break; |
| 1021 | case E_INTR: |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1022 | PyErr_SetNone(PyExc_KeyboardInterrupt); |
Barry Warsaw | c80baa3 | 1999-01-27 16:39:40 +0000 | [diff] [blame] | 1023 | Py_XDECREF(v); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1024 | return; |
| 1025 | case E_NOMEM: |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1026 | PyErr_NoMemory(); |
Barry Warsaw | c80baa3 | 1999-01-27 16:39:40 +0000 | [diff] [blame] | 1027 | Py_XDECREF(v); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1028 | return; |
| 1029 | case E_EOF: |
| 1030 | msg = "unexpected EOF while parsing"; |
| 1031 | break; |
Guido van Rossum | 560e8ad | 1998-04-10 19:43:42 +0000 | [diff] [blame] | 1032 | case E_INDENT: |
| 1033 | msg = "inconsistent use of tabs and spaces in indentation"; |
| 1034 | break; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1035 | default: |
| 1036 | fprintf(stderr, "error=%d\n", err->error); |
| 1037 | msg = "unknown parsing error"; |
| 1038 | break; |
| 1039 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1040 | w = Py_BuildValue("(sO)", msg, v); |
| 1041 | Py_XDECREF(v); |
| 1042 | PyErr_SetObject(PyExc_SyntaxError, w); |
| 1043 | Py_XDECREF(w); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1044 | } |
| 1045 | |
| 1046 | /* Print fatal error message and abort */ |
| 1047 | |
| 1048 | void |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1049 | Py_FatalError(msg) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1050 | char *msg; |
| 1051 | { |
Guido van Rossum | 83dd6c3 | 1994-09-29 09:38:33 +0000 | [diff] [blame] | 1052 | fprintf(stderr, "Fatal Python error: %s\n", msg); |
Guido van Rossum | 8ae87c0 | 1995-01-26 00:40:38 +0000 | [diff] [blame] | 1053 | #ifdef macintosh |
| 1054 | for (;;); |
| 1055 | #endif |
Guido van Rossum | 9b38a14 | 1996-09-11 23:12:24 +0000 | [diff] [blame] | 1056 | #ifdef MS_WIN32 |
Guido van Rossum | 23c9446 | 1997-05-22 20:21:30 +0000 | [diff] [blame] | 1057 | OutputDebugString("Fatal Python error: "); |
Guido van Rossum | a44823b | 1995-03-14 15:01:17 +0000 | [diff] [blame] | 1058 | OutputDebugString(msg); |
| 1059 | OutputDebugString("\n"); |
Guido van Rossum | 0ba3536 | 1998-08-13 13:33:16 +0000 | [diff] [blame] | 1060 | #ifdef _DEBUG |
| 1061 | DebugBreak(); |
Guido van Rossum | a44823b | 1995-03-14 15:01:17 +0000 | [diff] [blame] | 1062 | #endif |
Guido van Rossum | 0ba3536 | 1998-08-13 13:33:16 +0000 | [diff] [blame] | 1063 | #endif /* MS_WIN32 */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1064 | abort(); |
| 1065 | } |
| 1066 | |
| 1067 | /* Clean up and exit */ |
| 1068 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1069 | #ifdef WITH_THREAD |
Guido van Rossum | 49b5606 | 1998-10-01 20:42:43 +0000 | [diff] [blame] | 1070 | #include "pythread.h" |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1071 | int _PyThread_Started = 0; /* Set by threadmodule.c and maybe others */ |
Guido van Rossum | f9f2e82 | 1992-08-17 08:59:08 +0000 | [diff] [blame] | 1072 | #endif |
| 1073 | |
Guido van Rossum | 2dcfc96 | 1998-10-01 16:01:57 +0000 | [diff] [blame] | 1074 | #define NEXITFUNCS 32 |
Guido van Rossum | 1662dd5 | 1994-09-07 14:38:28 +0000 | [diff] [blame] | 1075 | static void (*exitfuncs[NEXITFUNCS])(); |
| 1076 | static int nexitfuncs = 0; |
| 1077 | |
| 1078 | int Py_AtExit(func) |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1079 | void (*func) Py_PROTO((void)); |
Guido van Rossum | 1662dd5 | 1994-09-07 14:38:28 +0000 | [diff] [blame] | 1080 | { |
| 1081 | if (nexitfuncs >= NEXITFUNCS) |
| 1082 | return -1; |
| 1083 | exitfuncs[nexitfuncs++] = func; |
| 1084 | return 0; |
| 1085 | } |
| 1086 | |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 1087 | static void |
| 1088 | call_sys_exitfunc() |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1089 | { |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1090 | PyObject *exitfunc = PySys_GetObject("exitfunc"); |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 1091 | |
| 1092 | if (exitfunc) { |
Guido van Rossum | bf02fb2 | 1998-04-03 21:12:12 +0000 | [diff] [blame] | 1093 | PyObject *res, *f; |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1094 | Py_INCREF(exitfunc); |
| 1095 | PySys_SetObject("exitfunc", (PyObject *)NULL); |
Guido van Rossum | bf02fb2 | 1998-04-03 21:12:12 +0000 | [diff] [blame] | 1096 | f = PySys_GetObject("stderr"); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1097 | res = PyEval_CallObject(exitfunc, (PyObject *)NULL); |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 1098 | if (res == NULL) { |
Guido van Rossum | bf02fb2 | 1998-04-03 21:12:12 +0000 | [diff] [blame] | 1099 | if (f) |
| 1100 | PyFile_WriteString("Error in sys.exitfunc:\n", f); |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1101 | PyErr_Print(); |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 1102 | } |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1103 | Py_DECREF(exitfunc); |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 1104 | } |
| 1105 | |
Guido van Rossum | 0829c75 | 1998-02-28 04:31:39 +0000 | [diff] [blame] | 1106 | if (Py_FlushLine()) |
| 1107 | PyErr_Clear(); |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 1108 | } |
Guido van Rossum | 1662dd5 | 1994-09-07 14:38:28 +0000 | [diff] [blame] | 1109 | |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 1110 | static void |
| 1111 | call_ll_exitfuncs() |
| 1112 | { |
Guido van Rossum | 1662dd5 | 1994-09-07 14:38:28 +0000 | [diff] [blame] | 1113 | while (nexitfuncs > 0) |
| 1114 | (*exitfuncs[--nexitfuncs])(); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 1115 | |
| 1116 | fflush(stdout); |
| 1117 | fflush(stderr); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 1118 | } |
| 1119 | |
| 1120 | void |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1121 | Py_Exit(sts) |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 1122 | int sts; |
| 1123 | { |
Guido van Rossum | cc283f5 | 1997-08-05 02:22:03 +0000 | [diff] [blame] | 1124 | Py_Finalize(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1125 | |
Jack Jansen | 66a8977 | 1995-10-27 13:22:14 +0000 | [diff] [blame] | 1126 | #ifdef macintosh |
| 1127 | PyMac_Exit(sts); |
| 1128 | #else |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1129 | exit(sts); |
Jack Jansen | 66a8977 | 1995-10-27 13:22:14 +0000 | [diff] [blame] | 1130 | #endif |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1131 | } |
| 1132 | |
Guido van Rossum | f1dc566 | 1993-07-05 10:31:29 +0000 | [diff] [blame] | 1133 | static void |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 1134 | initsigs() |
| 1135 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1136 | #ifdef HAVE_SIGNAL_H |
| 1137 | #ifdef SIGPIPE |
| 1138 | signal(SIGPIPE, SIG_IGN); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 1139 | #endif |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1140 | #endif /* HAVE_SIGNAL_H */ |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1141 | PyOS_InitInterrupts(); /* May imply initsignal() */ |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 1142 | } |
| 1143 | |
Guido van Rossum | aae0d32 | 1996-05-22 16:35:33 +0000 | [diff] [blame] | 1144 | #ifdef Py_TRACE_REFS |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1145 | /* Ask a yes/no question */ |
| 1146 | |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 1147 | int |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1148 | _Py_AskYesNo(prompt) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1149 | char *prompt; |
| 1150 | { |
| 1151 | char buf[256]; |
| 1152 | |
| 1153 | printf("%s [ny] ", prompt); |
| 1154 | if (fgets(buf, sizeof buf, stdin) == NULL) |
| 1155 | return 0; |
| 1156 | return buf[0] == 'y' || buf[0] == 'Y'; |
| 1157 | } |
| 1158 | #endif |
| 1159 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 1160 | #ifdef MPW |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1161 | |
| 1162 | /* Check for file descriptor connected to interactive device. |
| 1163 | Pretend that stdin is always interactive, other files never. */ |
| 1164 | |
| 1165 | int |
| 1166 | isatty(fd) |
| 1167 | int fd; |
| 1168 | { |
| 1169 | return fd == fileno(stdin); |
| 1170 | } |
| 1171 | |
| 1172 | #endif |
Guido van Rossum | 7433b12 | 1997-02-14 19:45:36 +0000 | [diff] [blame] | 1173 | |
| 1174 | /* |
| 1175 | * The file descriptor fd is considered ``interactive'' if either |
| 1176 | * a) isatty(fd) is TRUE, or |
| 1177 | * b) the -i flag was given, and the filename associated with |
| 1178 | * the descriptor is NULL or "<stdin>" or "???". |
| 1179 | */ |
| 1180 | int |
| 1181 | Py_FdIsInteractive(fp, filename) |
| 1182 | FILE *fp; |
| 1183 | char *filename; |
| 1184 | { |
| 1185 | if (isatty((int)fileno(fp))) |
| 1186 | return 1; |
| 1187 | if (!Py_InteractiveFlag) |
| 1188 | return 0; |
| 1189 | return (filename == NULL) || |
| 1190 | (strcmp(filename, "<stdin>") == 0) || |
| 1191 | (strcmp(filename, "???") == 0); |
| 1192 | } |