Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +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 | f70e43a | 1991-02-19 12:39:46 +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 | f70e43a | 1991-02-19 12:39:46 +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 | f70e43a | 1991-02-19 12:39:46 +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 | f70e43a | 1991-02-19 12:39:46 +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 | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 29 | |
| 30 | ******************************************************************/ |
| 31 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 32 | /* Module definition and import implementation */ |
| 33 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 34 | #include "Python.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 35 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 36 | #include "node.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 37 | #include "token.h" |
| 38 | #include "graminit.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 39 | #include "errcode.h" |
Guido van Rossum | c405b7b | 1991-06-04 19:39:42 +0000 | [diff] [blame] | 40 | #include "marshal.h" |
| 41 | #include "compile.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 42 | #include "eval.h" |
Guido van Rossum | d8bac6d | 1992-02-26 15:19:13 +0000 | [diff] [blame] | 43 | #include "osdefs.h" |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 44 | #include "importdl.h" |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 45 | #ifdef macintosh |
Jack Jansen | 614cf81 | 1995-07-28 11:28:14 +0000 | [diff] [blame] | 46 | /* 'argument' is a grammar symbol, but also used in some mac header files */ |
| 47 | #undef argument |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 48 | #include "macglue.h" |
| 49 | #endif |
Guido van Rossum | c405b7b | 1991-06-04 19:39:42 +0000 | [diff] [blame] | 50 | |
Guido van Rossum | 80bb965 | 1996-12-05 23:27:02 +0000 | [diff] [blame] | 51 | #ifdef HAVE_UNISTD_H |
| 52 | #include <unistd.h> |
| 53 | #endif |
| 54 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 55 | extern long PyOS_GetLastModificationTime(); /* In getmtime.c */ |
Guido van Rossum | 21d335e | 1993-10-15 13:01:11 +0000 | [diff] [blame] | 56 | |
Guido van Rossum | 6c84969 | 1994-09-26 15:47:17 +0000 | [diff] [blame] | 57 | /* Magic word to reject .pyc files generated by other Python versions */ |
Guido van Rossum | 7faeab3 | 1995-07-07 22:50:36 +0000 | [diff] [blame] | 58 | /* Change for each incompatible change */ |
| 59 | /* The value of CR and LF is incorporated so if you ever read or write |
| 60 | a .pyc file in text mode the magic number will be wrong; also, the |
| 61 | Apple MPW compiler swaps their values, botching string constants */ |
| 62 | /* XXX Perhaps the magic number should be frozen and a version field |
| 63 | added to the .pyc file header? */ |
Guido van Rossum | dd5db43 | 1997-01-17 21:06:11 +0000 | [diff] [blame] | 64 | /* New way to come up with the magic number: (YEAR-1995), MONTH, DAY */ |
Guido van Rossum | 99d1825 | 1997-01-24 03:44:53 +0000 | [diff] [blame] | 65 | #define MAGIC (20121 | ((long)'\r'<<16) | ((long)'\n'<<24)) |
Guido van Rossum | 3ddee71 | 1991-12-16 13:06:34 +0000 | [diff] [blame] | 66 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 67 | PyObject *import_modules; /* This becomes sys.modules */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 68 | |
Guido van Rossum | 66f1fa8 | 1991-04-03 19:03:52 +0000 | [diff] [blame] | 69 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 70 | /* Initialize things */ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 71 | |
| 72 | void |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 73 | PyImport_Init() |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 74 | { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 75 | if (import_modules != NULL) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 76 | Py_FatalError("duplicate initimport() call"); |
| 77 | if ((import_modules = PyDict_New()) == NULL) |
| 78 | Py_FatalError("no mem for dictionary of modules"); |
Guido van Rossum | 0824f63 | 1997-03-11 18:37:35 +0000 | [diff] [blame] | 79 | if (Py_OptimizeFlag) { |
| 80 | /* Replace ".pyc" with ".pyo" in import_filetab */ |
| 81 | struct filedescr *p; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 82 | for (p = _PyImport_Filetab; p->suffix != NULL; p++) { |
Guido van Rossum | 0824f63 | 1997-03-11 18:37:35 +0000 | [diff] [blame] | 83 | if (strcmp(p->suffix, ".pyc") == 0) |
| 84 | p->suffix = ".pyo"; |
| 85 | } |
| 86 | } |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 87 | } |
| 88 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 89 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 90 | /* Un-initialize things, as good as we can */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 91 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 92 | void |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 93 | PyImport_Cleanup() |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 94 | { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 95 | if (import_modules != NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 96 | PyObject *tmp = import_modules; |
Guido van Rossum | 0de81bf | 1995-01-26 00:41:28 +0000 | [diff] [blame] | 97 | import_modules = NULL; |
| 98 | /* This deletes all modules from sys.modules. |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 99 | When a module is deallocated, it in turn clears its |
| 100 | dictionary, thus hopefully breaking any circular |
| 101 | references between modules and between a module's |
| 102 | dictionary and its functions. Note that "import" |
| 103 | will fail while we are cleaning up. */ |
| 104 | PyDict_Clear(tmp); |
| 105 | Py_DECREF(tmp); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 106 | } |
Guido van Rossum | 8d15b5d | 1990-10-26 14:58:58 +0000 | [diff] [blame] | 107 | } |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 108 | |
| 109 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 110 | /* Helper for pythonrun.c -- return magic number */ |
| 111 | |
| 112 | long |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 113 | PyImport_GetMagicNumber() |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 114 | { |
| 115 | return MAGIC; |
| 116 | } |
| 117 | |
| 118 | |
| 119 | /* Helper for sysmodule.c -- return modules dictionary */ |
| 120 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 121 | PyObject * |
| 122 | PyImport_GetModuleDict() |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 123 | { |
| 124 | return import_modules; |
| 125 | } |
| 126 | |
| 127 | |
| 128 | /* Get the module object corresponding to a module name. |
| 129 | First check the modules dictionary if there's one there, |
| 130 | if not, create a new one and insert in in the modules dictionary. |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 131 | Because the former action is most common, THIS DOES NOT RETURN A |
| 132 | 'NEW' REFERENCE! */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 133 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 134 | PyObject * |
| 135 | PyImport_AddModule(name) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 136 | char *name; |
| 137 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 138 | PyObject *m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 139 | |
Guido van Rossum | 0de81bf | 1995-01-26 00:41:28 +0000 | [diff] [blame] | 140 | if (import_modules == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 141 | PyErr_SetString(PyExc_SystemError, |
| 142 | "sys.modules has been deleted"); |
Guido van Rossum | 0de81bf | 1995-01-26 00:41:28 +0000 | [diff] [blame] | 143 | return NULL; |
| 144 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 145 | if ((m = PyDict_GetItemString(import_modules, name)) != NULL && |
| 146 | PyModule_Check(m)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 147 | return m; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 148 | m = PyModule_New(name); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 149 | if (m == NULL) |
| 150 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 151 | if (PyDict_SetItemString(import_modules, name, m) != 0) { |
| 152 | Py_DECREF(m); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 153 | return NULL; |
| 154 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 155 | Py_DECREF(m); /* Yes, it still exists, in modules! */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 156 | |
| 157 | return m; |
| 158 | } |
| 159 | |
| 160 | |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 161 | /* Execute a code object in a module and return the module object |
| 162 | WITH INCREMENTED REFERENCE COUNT */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 163 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 164 | PyObject * |
| 165 | PyImport_ExecCodeModule(name, co) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 166 | char *name; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 167 | PyObject *co; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 168 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 169 | PyObject *m, *d, *v; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 170 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 171 | m = PyImport_AddModule(name); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 172 | if (m == NULL) |
| 173 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 174 | d = PyModule_GetDict(m); |
| 175 | if (PyDict_GetItemString(d, "__builtins__") == NULL) { |
| 176 | if (PyDict_SetItemString(d, "__builtins__", |
| 177 | PyEval_GetBuiltins()) != 0) |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 178 | return NULL; |
| 179 | } |
Guido van Rossum | 9c9a07c | 1996-05-16 20:43:40 +0000 | [diff] [blame] | 180 | /* Remember the filename as the __file__ attribute */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 181 | if (PyDict_SetItemString(d, "__file__", |
| 182 | ((PyCodeObject *)co)->co_filename) != 0) |
| 183 | PyErr_Clear(); /* Not important enough to report */ |
| 184 | v = PyEval_EvalCode((PyCodeObject *)co, d, d); /* XXX owner? */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 185 | if (v == NULL) |
| 186 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 187 | Py_DECREF(v); |
| 188 | Py_INCREF(m); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 189 | |
| 190 | return m; |
| 191 | } |
| 192 | |
| 193 | |
| 194 | /* Given a pathname for a Python source file, fill a buffer with the |
| 195 | pathname for the corresponding compiled file. Return the pathname |
| 196 | for the compiled file, or NULL if there's no space in the buffer. |
| 197 | Doesn't set an exception. */ |
| 198 | |
| 199 | static char * |
| 200 | make_compiled_pathname(pathname, buf, buflen) |
| 201 | char *pathname; |
| 202 | char *buf; |
| 203 | int buflen; |
| 204 | { |
| 205 | int len; |
| 206 | |
| 207 | len = strlen(pathname); |
| 208 | if (len+2 > buflen) |
| 209 | return NULL; |
| 210 | strcpy(buf, pathname); |
Guido van Rossum | 0824f63 | 1997-03-11 18:37:35 +0000 | [diff] [blame] | 211 | strcpy(buf+len, Py_OptimizeFlag ? "o" : "c"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 212 | |
| 213 | return buf; |
| 214 | } |
| 215 | |
| 216 | |
| 217 | /* Given a pathname for a Python source file, its time of last |
| 218 | modification, and a pathname for a compiled file, check whether the |
| 219 | compiled file represents the same version of the source. If so, |
| 220 | return a FILE pointer for the compiled file, positioned just after |
| 221 | the header; if not, return NULL. |
| 222 | Doesn't set an exception. */ |
| 223 | |
| 224 | static FILE * |
| 225 | check_compiled_module(pathname, mtime, cpathname) |
| 226 | char *pathname; |
| 227 | long mtime; |
| 228 | char *cpathname; |
| 229 | { |
| 230 | FILE *fp; |
| 231 | long magic; |
| 232 | long pyc_mtime; |
| 233 | |
| 234 | fp = fopen(cpathname, "rb"); |
| 235 | if (fp == NULL) |
| 236 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 237 | magic = PyMarshal_ReadLongFromFile(fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 238 | if (magic != MAGIC) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 239 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 240 | fprintf(stderr, "# %s has bad magic\n", cpathname); |
| 241 | fclose(fp); |
| 242 | return NULL; |
| 243 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 244 | pyc_mtime = PyMarshal_ReadLongFromFile(fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 245 | if (pyc_mtime != mtime) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 246 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 247 | fprintf(stderr, "# %s has bad mtime\n", cpathname); |
| 248 | fclose(fp); |
| 249 | return NULL; |
| 250 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 251 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 252 | fprintf(stderr, "# %s matches %s\n", cpathname, pathname); |
| 253 | return fp; |
| 254 | } |
| 255 | |
| 256 | |
| 257 | /* Read a code object from a file and check it for validity */ |
| 258 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 259 | static PyCodeObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 260 | read_compiled_module(fp) |
| 261 | FILE *fp; |
| 262 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 263 | PyObject *co; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 264 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 265 | co = PyMarshal_ReadObjectFromFile(fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 266 | /* Ugly: rd_object() may return NULL with or without error */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 267 | if (co == NULL || !PyCode_Check(co)) { |
| 268 | if (!PyErr_Occurred()) |
| 269 | PyErr_SetString(PyExc_ImportError, |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 270 | "Non-code object in .pyc file"); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 271 | Py_XDECREF(co); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 272 | return NULL; |
| 273 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 274 | return (PyCodeObject *)co; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 275 | } |
| 276 | |
| 277 | |
| 278 | /* Load a module from a compiled file, execute it, and return its |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 279 | module object WITH INCREMENTED REFERENCE COUNT */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 280 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 281 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 282 | load_compiled_module(name, cpathname, fp) |
| 283 | char *name; |
| 284 | char *cpathname; |
| 285 | FILE *fp; |
| 286 | { |
| 287 | long magic; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 288 | PyCodeObject *co; |
| 289 | PyObject *m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 290 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 291 | magic = PyMarshal_ReadLongFromFile(fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 292 | if (magic != MAGIC) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 293 | PyErr_SetString(PyExc_ImportError, |
| 294 | "Bad magic number in .pyc file"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 295 | return NULL; |
| 296 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 297 | (void) PyMarshal_ReadLongFromFile(fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 298 | co = read_compiled_module(fp); |
| 299 | if (co == NULL) |
| 300 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 301 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 302 | fprintf(stderr, "import %s # precompiled from %s\n", |
| 303 | name, cpathname); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 304 | m = PyImport_ExecCodeModule(name, (PyObject *)co); |
| 305 | Py_DECREF(co); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 306 | |
| 307 | return m; |
| 308 | } |
| 309 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 310 | /* Parse a source file and return the corresponding code object */ |
| 311 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 312 | static PyCodeObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 313 | parse_source_module(pathname, fp) |
| 314 | char *pathname; |
| 315 | FILE *fp; |
| 316 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 317 | PyCodeObject *co; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 318 | node *n; |
| 319 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 320 | n = PyParser_SimpleParseFile(fp, pathname, file_input); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 321 | if (n == NULL) |
| 322 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 323 | co = PyNode_Compile(n, pathname); |
| 324 | PyNode_Free(n); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 325 | |
| 326 | return co; |
| 327 | } |
| 328 | |
| 329 | |
| 330 | /* Write a compiled module to a file, placing the time of last |
| 331 | modification of its source into the header. |
| 332 | Errors are ignored, if a write error occurs an attempt is made to |
| 333 | remove the file. */ |
| 334 | |
| 335 | static void |
| 336 | write_compiled_module(co, cpathname, mtime) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 337 | PyCodeObject *co; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 338 | char *cpathname; |
| 339 | long mtime; |
| 340 | { |
| 341 | FILE *fp; |
| 342 | |
| 343 | fp = fopen(cpathname, "wb"); |
| 344 | if (fp == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 345 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 346 | fprintf(stderr, |
| 347 | "# can't create %s\n", cpathname); |
| 348 | return; |
| 349 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 350 | PyMarshal_WriteLongToFile(MAGIC, fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 351 | /* First write a 0 for mtime */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 352 | PyMarshal_WriteLongToFile(0L, fp); |
| 353 | PyMarshal_WriteObjectToFile((PyObject *)co, fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 354 | if (ferror(fp)) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 355 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 356 | fprintf(stderr, "# can't write %s\n", cpathname); |
| 357 | /* Don't keep partial file */ |
| 358 | fclose(fp); |
| 359 | (void) unlink(cpathname); |
| 360 | return; |
| 361 | } |
| 362 | /* Now write the true mtime */ |
| 363 | fseek(fp, 4L, 0); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 364 | PyMarshal_WriteLongToFile(mtime, fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 365 | fflush(fp); |
| 366 | fclose(fp); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 367 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 368 | fprintf(stderr, "# wrote %s\n", cpathname); |
| 369 | #ifdef macintosh |
Guido van Rossum | be1a6e2 | 1996-02-21 15:29:20 +0000 | [diff] [blame] | 370 | setfiletype(cpathname, 'Pyth', 'PYC '); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 371 | #endif |
| 372 | } |
| 373 | |
| 374 | |
| 375 | /* Load a source module from a given file and return its module |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 376 | object WITH INCREMENTED REFERENCE COUNT. If there's a matching |
| 377 | byte-compiled file, use that instead. */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 378 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 379 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 380 | load_source_module(name, pathname, fp) |
| 381 | char *name; |
| 382 | char *pathname; |
| 383 | FILE *fp; |
| 384 | { |
| 385 | long mtime; |
| 386 | FILE *fpc; |
| 387 | char buf[MAXPATHLEN+1]; |
| 388 | char *cpathname; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 389 | PyCodeObject *co; |
| 390 | PyObject *m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 391 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 392 | mtime = PyOS_GetLastModificationTime(pathname); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 393 | cpathname = make_compiled_pathname(pathname, buf, MAXPATHLEN+1); |
| 394 | if (cpathname != NULL && |
| 395 | (fpc = check_compiled_module(pathname, mtime, cpathname))) { |
| 396 | co = read_compiled_module(fpc); |
| 397 | fclose(fpc); |
| 398 | if (co == NULL) |
| 399 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 400 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 401 | fprintf(stderr, "import %s # precompiled from %s\n", |
| 402 | name, cpathname); |
| 403 | } |
| 404 | else { |
| 405 | co = parse_source_module(pathname, fp); |
| 406 | if (co == NULL) |
| 407 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 408 | if (Py_VerboseFlag) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 409 | fprintf(stderr, "import %s # from %s\n", |
| 410 | name, pathname); |
| 411 | write_compiled_module(co, cpathname, mtime); |
| 412 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 413 | m = PyImport_ExecCodeModule(name, (PyObject *)co); |
| 414 | Py_DECREF(co); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 415 | |
| 416 | return m; |
| 417 | } |
| 418 | |
| 419 | |
| 420 | /* Search the path (default sys.path) for a module. Return the |
| 421 | corresponding filedescr struct, and (via return arguments) the |
| 422 | pathname and an open file. Return NULL if the module is not found. */ |
| 423 | |
| 424 | static struct filedescr * |
| 425 | find_module(name, path, buf, buflen, p_fp) |
| 426 | char *name; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 427 | PyObject *path; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 428 | /* Output parameters: */ |
| 429 | char *buf; |
| 430 | int buflen; |
| 431 | FILE **p_fp; |
| 432 | { |
| 433 | int i, npath, len, namelen; |
Guido van Rossum | 80bb965 | 1996-12-05 23:27:02 +0000 | [diff] [blame] | 434 | struct filedescr *fdp = NULL; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 435 | FILE *fp = NULL; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 436 | |
Guido van Rossum | ac27910 | 1996-08-22 23:10:58 +0000 | [diff] [blame] | 437 | #ifdef MS_COREDLL |
Guido van Rossum | 6bf62da | 1997-04-11 20:37:35 +0000 | [diff] [blame] | 438 | extern FILE *PyWin_FindRegisteredModule(); |
Guido van Rossum | a5a3db7 | 1996-04-09 02:39:59 +0000 | [diff] [blame] | 439 | if ((fp=PyWin_FindRegisteredModule(name, &fdp, buf, buflen))!=NULL) { |
| 440 | *p_fp = fp; |
| 441 | return fdp; |
| 442 | } |
| 443 | #endif |
| 444 | |
| 445 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 446 | if (path == NULL) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 447 | path = PySys_GetObject("path"); |
| 448 | if (path == NULL || !PyList_Check(path)) { |
| 449 | PyErr_SetString(PyExc_ImportError, |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 450 | "sys.path must be a list of directory names"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 451 | return NULL; |
| 452 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 453 | npath = PyList_Size(path); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 454 | namelen = strlen(name); |
| 455 | for (i = 0; i < npath; i++) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 456 | PyObject *v = PyList_GetItem(path, i); |
| 457 | if (!PyString_Check(v)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 458 | continue; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 459 | len = PyString_Size(v); |
| 460 | if (len + 2 + namelen + _PyImport_MaxSuffixSize >= buflen) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 461 | continue; /* Too long */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 462 | strcpy(buf, PyString_AsString(v)); |
Guido van Rossum | 6bf62da | 1997-04-11 20:37:35 +0000 | [diff] [blame] | 463 | if ((int)strlen(buf) != len) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 464 | continue; /* v contains '\0' */ |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 465 | #ifdef macintosh |
| 466 | if ( PyMac_FindResourceModule(name, buf) ) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 467 | static struct filedescr resfiledescr = |
| 468 | {"", "", PY_RESOURCE}; |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 469 | |
| 470 | return &resfiledescr; |
| 471 | } |
| 472 | #endif |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 473 | if (len > 0 && buf[len-1] != SEP) |
| 474 | buf[len++] = SEP; |
Guido van Rossum | 40f470f | 1996-05-23 22:51:04 +0000 | [diff] [blame] | 475 | #ifdef IMPORT_8x3_NAMES |
| 476 | /* see if we are searching in directory dos_8x3 */ |
| 477 | if (len > 7 && !strncmp(buf + len - 8, "dos_8x3", 7)){ |
| 478 | int j; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 479 | char ch; /* limit name to 8 lower-case characters */ |
Guido van Rossum | 40f470f | 1996-05-23 22:51:04 +0000 | [diff] [blame] | 480 | for (j = 0; (ch = name[j]) && j < 8; j++) |
| 481 | if (isupper(ch)) |
| 482 | buf[len++] = tolower(ch); |
| 483 | else |
| 484 | buf[len++] = ch; |
| 485 | } |
Guido van Rossum | 0e41c8c | 1996-06-20 14:18:34 +0000 | [diff] [blame] | 486 | else /* Not in dos_8x3, use the full name */ |
Guido van Rossum | 6f489d9 | 1996-06-28 20:15:15 +0000 | [diff] [blame] | 487 | #endif |
Guido van Rossum | 0e41c8c | 1996-06-20 14:18:34 +0000 | [diff] [blame] | 488 | { |
Guido van Rossum | 40f470f | 1996-05-23 22:51:04 +0000 | [diff] [blame] | 489 | strcpy(buf+len, name); |
| 490 | len += namelen; |
| 491 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 492 | for (fdp = _PyImport_Filetab; fdp->suffix != NULL; fdp++) { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 493 | strcpy(buf+len, fdp->suffix); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 494 | if (Py_VerboseFlag > 1) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 495 | fprintf(stderr, "# trying %s\n", buf); |
| 496 | fp = fopen(buf, fdp->mode); |
| 497 | if (fp != NULL) |
| 498 | break; |
| 499 | } |
| 500 | if (fp != NULL) |
| 501 | break; |
| 502 | } |
| 503 | if (fp == NULL) { |
| 504 | char buf[256]; |
| 505 | sprintf(buf, "No module named %.200s", name); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 506 | PyErr_SetString(PyExc_ImportError, buf); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 507 | return NULL; |
| 508 | } |
| 509 | |
| 510 | *p_fp = fp; |
| 511 | return fdp; |
| 512 | } |
| 513 | |
| 514 | |
| 515 | /* Load an external module using the default search path and return |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 516 | its module object WITH INCREMENTED REFERENCE COUNT */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 517 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 518 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 519 | load_module(name) |
| 520 | char *name; |
| 521 | { |
| 522 | char buf[MAXPATHLEN+1]; |
| 523 | struct filedescr *fdp; |
| 524 | FILE *fp = NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 525 | PyObject *m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 526 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 527 | fdp = find_module(name, (PyObject *)NULL, buf, MAXPATHLEN+1, &fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 528 | if (fdp == NULL) |
| 529 | return NULL; |
| 530 | |
| 531 | switch (fdp->type) { |
| 532 | |
| 533 | case PY_SOURCE: |
| 534 | m = load_source_module(name, buf, fp); |
| 535 | break; |
| 536 | |
| 537 | case PY_COMPILED: |
| 538 | m = load_compiled_module(name, buf, fp); |
| 539 | break; |
| 540 | |
| 541 | case C_EXTENSION: |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 542 | m = _PyImport_LoadDynamicModule(name, buf, fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 543 | break; |
| 544 | |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 545 | #ifdef macintosh |
| 546 | case PY_RESOURCE: |
| 547 | m = PyMac_LoadResourceModule(name, buf); |
| 548 | break; |
| 549 | #endif |
| 550 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 551 | default: |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 552 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 553 | "find_module returned unexpected result"); |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 554 | m = NULL; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 555 | |
| 556 | } |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 557 | if ( fp ) |
| 558 | fclose(fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 559 | |
| 560 | return m; |
| 561 | } |
| 562 | |
| 563 | |
| 564 | /* Initialize a built-in module. |
| 565 | Return 1 for succes, 0 if the module is not found, and -1 with |
| 566 | an exception set if the initialization failed. */ |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 567 | |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 568 | static int |
| 569 | init_builtin(name) |
| 570 | char *name; |
| 571 | { |
| 572 | int i; |
| 573 | for (i = 0; inittab[i].name != NULL; i++) { |
| 574 | if (strcmp(name, inittab[i].name) == 0) { |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 575 | if (inittab[i].initfunc == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 576 | PyErr_SetString(PyExc_ImportError, |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 577 | "Cannot re-init internal module"); |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 578 | return -1; |
| 579 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 580 | if (Py_VerboseFlag) |
Guido van Rossum | 4cd8b5c | 1992-03-27 17:21:04 +0000 | [diff] [blame] | 581 | fprintf(stderr, "import %s # builtin\n", |
| 582 | name); |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 583 | (*inittab[i].initfunc)(); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 584 | if (PyErr_Occurred()) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 585 | return -1; |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 586 | return 1; |
| 587 | } |
| 588 | } |
| 589 | return 0; |
| 590 | } |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 591 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 592 | |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 593 | /* Frozen modules */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 594 | |
Guido van Rossum | cfd0a22 | 1996-06-17 17:06:34 +0000 | [diff] [blame] | 595 | static struct _frozen * |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 596 | find_frozen(name) |
| 597 | char *name; |
| 598 | { |
Guido van Rossum | cfd0a22 | 1996-06-17 17:06:34 +0000 | [diff] [blame] | 599 | struct _frozen *p; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 600 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 601 | for (p = PyImport_FrozenModules; ; p++) { |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 602 | if (p->name == NULL) |
| 603 | return NULL; |
| 604 | if (strcmp(p->name, name) == 0) |
| 605 | break; |
| 606 | } |
| 607 | return p; |
| 608 | } |
| 609 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 610 | static PyObject * |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 611 | get_frozen_object(name) |
| 612 | char *name; |
| 613 | { |
Guido van Rossum | cfd0a22 | 1996-06-17 17:06:34 +0000 | [diff] [blame] | 614 | struct _frozen *p = find_frozen(name); |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 615 | |
| 616 | if (p == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 617 | PyErr_SetString(PyExc_ImportError, "No such frozen object"); |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 618 | return NULL; |
| 619 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 620 | return PyMarshal_ReadObjectFromString((char *)p->code, p->size); |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 621 | } |
| 622 | |
| 623 | /* Initialize a frozen module. |
| 624 | Return 1 for succes, 0 if the module is not found, and -1 with |
| 625 | an exception set if the initialization failed. |
| 626 | This function is also used from frozenmain.c */ |
Guido van Rossum | 0b34490 | 1995-02-07 15:35:27 +0000 | [diff] [blame] | 627 | |
| 628 | int |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 629 | PyImport_ImportFrozenModule(name) |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 630 | char *name; |
| 631 | { |
Guido van Rossum | cfd0a22 | 1996-06-17 17:06:34 +0000 | [diff] [blame] | 632 | struct _frozen *p = find_frozen(name); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 633 | PyObject *co; |
| 634 | PyObject *m; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 635 | |
| 636 | if (p == NULL) |
| 637 | return 0; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 638 | if (Py_VerboseFlag) |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 639 | fprintf(stderr, "import %s # frozen\n", name); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 640 | co = PyMarshal_ReadObjectFromString((char *)p->code, p->size); |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 641 | if (co == NULL) |
| 642 | return -1; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 643 | if (!PyCode_Check(co)) { |
| 644 | Py_DECREF(co); |
| 645 | PyErr_SetString(PyExc_TypeError, |
| 646 | "frozen object is not a code object"); |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 647 | return -1; |
| 648 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 649 | m = PyImport_ExecCodeModule(name, co); |
| 650 | Py_DECREF(co); |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 651 | if (m == NULL) |
| 652 | return -1; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 653 | Py_DECREF(m); |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 654 | return 1; |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 655 | } |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 656 | |
| 657 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 658 | /* Import a module, either built-in, frozen, or external, and return |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 659 | its module object WITH INCREMENTED REFERENCE COUNT */ |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 660 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 661 | PyObject * |
| 662 | PyImport_ImportModule(name) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 663 | char *name; |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 664 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 665 | PyObject *m; |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 666 | |
Guido van Rossum | 0de81bf | 1995-01-26 00:41:28 +0000 | [diff] [blame] | 667 | if (import_modules == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 668 | PyErr_SetString(PyExc_SystemError, |
| 669 | "sys.modules has been deleted"); |
Guido van Rossum | 0de81bf | 1995-01-26 00:41:28 +0000 | [diff] [blame] | 670 | return NULL; |
| 671 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 672 | if ((m = PyDict_GetItemString(import_modules, name)) != NULL) { |
| 673 | Py_INCREF(m); |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 674 | } |
| 675 | else { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 676 | int i; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 677 | if ((i = init_builtin(name)) || |
| 678 | (i = PyImport_ImportFrozenModule(name))) { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 679 | if (i < 0) |
| 680 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 681 | if ((m = PyDict_GetItemString(import_modules, |
| 682 | name)) == NULL) { |
| 683 | if (PyErr_Occurred() == NULL) |
| 684 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 685 | "built-in module not initialized properly"); |
| 686 | } |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 687 | else |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 688 | Py_INCREF(m); |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 689 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 690 | else |
| 691 | m = load_module(name); |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 692 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 693 | |
| 694 | return m; |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 695 | } |
| 696 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 697 | |
| 698 | /* Re-import a module of any kind and return its module object, WITH |
| 699 | INCREMENTED REFERENCE COUNT */ |
| 700 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 701 | PyObject * |
| 702 | PyImport_ReloadModule(m) |
| 703 | PyObject *m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 704 | { |
| 705 | char *name; |
| 706 | int i; |
| 707 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 708 | if (m == NULL || !PyModule_Check(m)) { |
| 709 | PyErr_SetString(PyExc_TypeError, |
| 710 | "reload() argument must be module"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 711 | return NULL; |
| 712 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 713 | name = PyModule_GetName(m); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 714 | if (name == NULL) |
| 715 | return NULL; |
Guido van Rossum | 0de81bf | 1995-01-26 00:41:28 +0000 | [diff] [blame] | 716 | if (import_modules == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 717 | PyErr_SetString(PyExc_SystemError, |
| 718 | "sys.modules has been deleted"); |
Guido van Rossum | 0de81bf | 1995-01-26 00:41:28 +0000 | [diff] [blame] | 719 | return NULL; |
| 720 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 721 | if (m != PyDict_GetItemString(import_modules, name)) { |
| 722 | PyErr_SetString(PyExc_ImportError, |
| 723 | "reload() module not in sys.modules"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 724 | return NULL; |
| 725 | } |
| 726 | /* Check for built-in and frozen modules */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 727 | if ((i = init_builtin(name)) || |
| 728 | (i = PyImport_ImportFrozenModule(name))) { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 729 | if (i < 0) |
| 730 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 731 | Py_INCREF(m); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 732 | } |
| 733 | else |
| 734 | m = load_module(name); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 735 | return m; |
| 736 | } |
| 737 | |
| 738 | |
| 739 | /* Module 'imp' provides Python access to the primitives used for |
| 740 | importing modules. |
| 741 | */ |
| 742 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 743 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 744 | imp_get_magic(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 745 | PyObject *self; |
| 746 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 747 | { |
| 748 | char buf[4]; |
| 749 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 750 | if (!PyArg_ParseTuple(args, "")) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 751 | return NULL; |
Guido van Rossum | 6bf62da | 1997-04-11 20:37:35 +0000 | [diff] [blame] | 752 | buf[0] = (char) ((MAGIC >> 0) & 0xff); |
| 753 | buf[1] = (char) ((MAGIC >> 8) & 0xff); |
| 754 | buf[2] = (char) ((MAGIC >> 16) & 0xff); |
| 755 | buf[3] = (char) ((MAGIC >> 24) & 0xff); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 756 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 757 | return PyString_FromStringAndSize(buf, 4); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 758 | } |
| 759 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 760 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 761 | imp_get_suffixes(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 762 | PyObject *self; |
| 763 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 764 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 765 | PyObject *list; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 766 | struct filedescr *fdp; |
| 767 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 768 | if (!PyArg_ParseTuple(args, "")) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 769 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 770 | list = PyList_New(0); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 771 | if (list == NULL) |
| 772 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 773 | for (fdp = _PyImport_Filetab; fdp->suffix != NULL; fdp++) { |
| 774 | PyObject *item = Py_BuildValue("ssi", |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 775 | fdp->suffix, fdp->mode, fdp->type); |
| 776 | if (item == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 777 | Py_DECREF(list); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 778 | return NULL; |
| 779 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 780 | if (PyList_Append(list, item) < 0) { |
| 781 | Py_DECREF(list); |
| 782 | Py_DECREF(item); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 783 | return NULL; |
| 784 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 785 | Py_DECREF(item); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 786 | } |
| 787 | return list; |
| 788 | } |
| 789 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 790 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 791 | imp_find_module(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 792 | PyObject *self; |
| 793 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 794 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 795 | extern int fclose Py_PROTO((FILE *)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 796 | char *name; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 797 | PyObject *path = NULL; |
| 798 | PyObject *fob, *ret; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 799 | struct filedescr *fdp; |
| 800 | char pathname[MAXPATHLEN+1]; |
| 801 | FILE *fp; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 802 | if (!PyArg_ParseTuple(args, "s|O!", &name, &PyList_Type, &path)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 803 | return NULL; |
| 804 | fdp = find_module(name, path, pathname, MAXPATHLEN+1, &fp); |
| 805 | if (fdp == NULL) |
| 806 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 807 | fob = PyFile_FromFile(fp, pathname, fdp->mode, fclose); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 808 | if (fob == NULL) { |
| 809 | fclose(fp); |
| 810 | return NULL; |
| 811 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 812 | ret = Py_BuildValue("Os(ssi)", |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 813 | fob, pathname, fdp->suffix, fdp->mode, fdp->type); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 814 | Py_DECREF(fob); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 815 | return ret; |
| 816 | } |
| 817 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 818 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 819 | imp_init_builtin(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 820 | PyObject *self; |
| 821 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 822 | { |
| 823 | char *name; |
| 824 | int ret; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 825 | PyObject *m; |
| 826 | if (!PyArg_ParseTuple(args, "s", &name)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 827 | return NULL; |
| 828 | ret = init_builtin(name); |
| 829 | if (ret < 0) |
| 830 | return NULL; |
| 831 | if (ret == 0) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 832 | Py_INCREF(Py_None); |
| 833 | return Py_None; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 834 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 835 | m = PyImport_AddModule(name); |
| 836 | Py_XINCREF(m); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 837 | return m; |
| 838 | } |
| 839 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 840 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 841 | imp_init_frozen(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 842 | PyObject *self; |
| 843 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 844 | { |
| 845 | char *name; |
| 846 | int ret; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 847 | PyObject *m; |
| 848 | if (!PyArg_ParseTuple(args, "s", &name)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 849 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 850 | ret = PyImport_ImportFrozenModule(name); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 851 | if (ret < 0) |
| 852 | return NULL; |
| 853 | if (ret == 0) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 854 | Py_INCREF(Py_None); |
| 855 | return Py_None; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 856 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 857 | m = PyImport_AddModule(name); |
| 858 | Py_XINCREF(m); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 859 | return m; |
| 860 | } |
| 861 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 862 | static PyObject * |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 863 | imp_get_frozen_object(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 864 | PyObject *self; |
| 865 | PyObject *args; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 866 | { |
| 867 | char *name; |
Jack Jansen | 95ffa23 | 1995-10-03 14:38:41 +0000 | [diff] [blame] | 868 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 869 | if (!PyArg_ParseTuple(args, "s", &name)) |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 870 | return NULL; |
| 871 | return get_frozen_object(name); |
| 872 | } |
| 873 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 874 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 875 | imp_is_builtin(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 876 | PyObject *self; |
| 877 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 878 | { |
| 879 | int i; |
| 880 | char *name; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 881 | if (!PyArg_ParseTuple(args, "s", &name)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 882 | return NULL; |
| 883 | for (i = 0; inittab[i].name != NULL; i++) { |
| 884 | if (strcmp(name, inittab[i].name) == 0) { |
| 885 | if (inittab[i].initfunc == NULL) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 886 | return PyInt_FromLong(-1); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 887 | else |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 888 | return PyInt_FromLong(1); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 889 | } |
| 890 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 891 | return PyInt_FromLong(0); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 892 | } |
| 893 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 894 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 895 | imp_is_frozen(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 896 | PyObject *self; |
| 897 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 898 | { |
Guido van Rossum | cfd0a22 | 1996-06-17 17:06:34 +0000 | [diff] [blame] | 899 | struct _frozen *p; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 900 | char *name; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 901 | if (!PyArg_ParseTuple(args, "s", &name)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 902 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 903 | for (p = PyImport_FrozenModules; ; p++) { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 904 | if (p->name == NULL) |
| 905 | break; |
| 906 | if (strcmp(p->name, name) == 0) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 907 | return PyInt_FromLong(1); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 908 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 909 | return PyInt_FromLong(0); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 910 | } |
| 911 | |
| 912 | static FILE * |
| 913 | get_file(pathname, fob, mode) |
| 914 | char *pathname; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 915 | PyObject *fob; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 916 | char *mode; |
| 917 | { |
| 918 | FILE *fp; |
| 919 | if (fob == NULL) { |
| 920 | fp = fopen(pathname, mode); |
| 921 | if (fp == NULL) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 922 | PyErr_SetFromErrno(PyExc_IOError); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 923 | } |
| 924 | else { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 925 | fp = PyFile_AsFile(fob); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 926 | if (fp == NULL) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 927 | PyErr_SetString(PyExc_ValueError, |
| 928 | "bad/closed file object"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 929 | } |
| 930 | return fp; |
| 931 | } |
| 932 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 933 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 934 | imp_load_compiled(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 935 | PyObject *self; |
| 936 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 937 | { |
| 938 | char *name; |
| 939 | char *pathname; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 940 | PyObject *fob = NULL; |
| 941 | PyObject *m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 942 | FILE *fp; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 943 | if (!PyArg_ParseTuple(args, "ssO!", &name, &pathname, |
| 944 | &PyFile_Type, &fob)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 945 | return NULL; |
| 946 | fp = get_file(pathname, fob, "rb"); |
| 947 | if (fp == NULL) |
| 948 | return NULL; |
| 949 | m = load_compiled_module(name, pathname, fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 950 | return m; |
| 951 | } |
| 952 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 953 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 954 | imp_load_dynamic(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 955 | PyObject *self; |
| 956 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 957 | { |
| 958 | char *name; |
| 959 | char *pathname; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 960 | PyObject *fob = NULL; |
| 961 | PyObject *m; |
Guido van Rossum | 7faeab3 | 1995-07-07 22:50:36 +0000 | [diff] [blame] | 962 | FILE *fp = NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 963 | if (!PyArg_ParseTuple(args, "ss|O!", &name, &pathname, |
| 964 | &PyFile_Type, &fob)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 965 | return NULL; |
Guido van Rossum | 7faeab3 | 1995-07-07 22:50:36 +0000 | [diff] [blame] | 966 | if (fob) |
| 967 | fp = get_file(pathname, fob, "r"); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 968 | m = _PyImport_LoadDynamicModule(name, pathname, fp); |
Guido van Rossum | 7faeab3 | 1995-07-07 22:50:36 +0000 | [diff] [blame] | 969 | return m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 970 | } |
| 971 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 972 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 973 | imp_load_source(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 974 | PyObject *self; |
| 975 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 976 | { |
| 977 | char *name; |
| 978 | char *pathname; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 979 | PyObject *fob = NULL; |
| 980 | PyObject *m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 981 | FILE *fp; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 982 | if (!PyArg_ParseTuple(args, "ssO!", &name, &pathname, |
| 983 | &PyFile_Type, &fob)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 984 | return NULL; |
| 985 | fp = get_file(pathname, fob, "r"); |
| 986 | if (fp == NULL) |
| 987 | return NULL; |
| 988 | m = load_source_module(name, pathname, fp); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 989 | return m; |
| 990 | } |
| 991 | |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 992 | #ifdef macintosh |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 993 | static PyObject * |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 994 | imp_load_resource(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 995 | PyObject *self; |
| 996 | PyObject *args; |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 997 | { |
| 998 | char *name; |
| 999 | char *pathname; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1000 | PyObject *m; |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 1001 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1002 | if (!PyArg_ParseTuple(args, "ss", &name, &pathname)) |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 1003 | return NULL; |
| 1004 | m = PyMac_LoadResourceModule(name, pathname); |
| 1005 | return m; |
| 1006 | } |
| 1007 | #endif /* macintosh */ |
| 1008 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1009 | static PyObject * |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1010 | imp_new_module(self, args) |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1011 | PyObject *self; |
| 1012 | PyObject *args; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1013 | { |
| 1014 | char *name; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1015 | if (!PyArg_ParseTuple(args, "s", &name)) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1016 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1017 | return PyModule_New(name); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1018 | } |
| 1019 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1020 | static PyMethodDef imp_methods[] = { |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1021 | {"get_frozen_object", imp_get_frozen_object, 1}, |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1022 | {"get_magic", imp_get_magic, 1}, |
| 1023 | {"get_suffixes", imp_get_suffixes, 1}, |
| 1024 | {"find_module", imp_find_module, 1}, |
| 1025 | {"init_builtin", imp_init_builtin, 1}, |
| 1026 | {"init_frozen", imp_init_frozen, 1}, |
| 1027 | {"is_builtin", imp_is_builtin, 1}, |
| 1028 | {"is_frozen", imp_is_frozen, 1}, |
| 1029 | {"load_compiled", imp_load_compiled, 1}, |
| 1030 | {"load_dynamic", imp_load_dynamic, 1}, |
| 1031 | {"load_source", imp_load_source, 1}, |
| 1032 | {"new_module", imp_new_module, 1}, |
Jack Jansen | 9c96a92 | 1995-02-15 22:57:06 +0000 | [diff] [blame] | 1033 | #ifdef macintosh |
| 1034 | {"load_resource", imp_load_resource, 1}, |
| 1035 | #endif |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1036 | {NULL, NULL} /* sentinel */ |
| 1037 | }; |
| 1038 | |
| 1039 | void |
| 1040 | initimp() |
| 1041 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1042 | PyObject *m, *d, *v; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1043 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1044 | m = Py_InitModule("imp", imp_methods); |
| 1045 | d = PyModule_GetDict(m); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1046 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1047 | v = PyInt_FromLong(SEARCH_ERROR); |
| 1048 | PyDict_SetItemString(d, "SEARCH_ERROR", v); |
| 1049 | Py_XDECREF(v); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1050 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1051 | v = PyInt_FromLong(PY_SOURCE); |
| 1052 | PyDict_SetItemString(d, "PY_SOURCE", v); |
| 1053 | Py_XDECREF(v); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1054 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1055 | v = PyInt_FromLong(PY_COMPILED); |
| 1056 | PyDict_SetItemString(d, "PY_COMPILED", v); |
| 1057 | Py_XDECREF(v); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1058 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1059 | v = PyInt_FromLong(C_EXTENSION); |
| 1060 | PyDict_SetItemString(d, "C_EXTENSION", v); |
| 1061 | Py_XDECREF(v); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1062 | |
Jack Jansen | ae12e19 | 1995-06-18 20:06:44 +0000 | [diff] [blame] | 1063 | #ifdef macintosh |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1064 | v = PyInt_FromLong(PY_RESOURCE); |
| 1065 | PyDict_SetItemString(d, "PY_RESOURCE", v); |
| 1066 | Py_XDECREF(v); |
Jack Jansen | ae12e19 | 1995-06-18 20:06:44 +0000 | [diff] [blame] | 1067 | #endif |
| 1068 | |
| 1069 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame^] | 1070 | if (PyErr_Occurred()) |
| 1071 | Py_FatalError("imp module initialization failed"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1072 | } |