Jean-Paul Calderone | 897bc25 | 2008-02-18 20:50:23 -0500 | [diff] [blame] | 1 | /* |
| 2 | * util.h |
| 3 | * |
| 4 | * Copyright (C) AB Strakt 2001, All rights reserved |
| 5 | * |
| 6 | * Export utility functions and macros. |
| 7 | * See the file RATIONALE for a short explanation of why this module was written. |
| 8 | * |
| 9 | * Reviewed 2001-07-23 |
| 10 | * |
| 11 | * @(#) $Id: util.h,v 1.8 2002/08/16 10:08:09 martin Exp $ |
| 12 | */ |
| 13 | #ifndef PyOpenSSL_UTIL_H_ |
| 14 | #define PyOpenSSL_UTIL_H_ |
| 15 | |
| 16 | #include <Python.h> |
| 17 | #include <openssl/err.h> |
| 18 | |
| 19 | /* |
| 20 | * pymemcompat written by Michael Hudson and lets you program to the |
| 21 | * Python 2.3 memory API while keeping backwards compatability. |
| 22 | */ |
| 23 | #include "pymemcompat.h" |
| 24 | |
| 25 | extern PyObject *error_queue_to_list(void); |
| 26 | extern void flush_error_queue(void); |
| 27 | |
| 28 | /* |
| 29 | * These are needed because there is no "official" way to specify |
| 30 | * WHERE to save the thread state. |
| 31 | */ |
| 32 | #ifdef WITH_THREAD |
Jean-Paul Calderone | 00db9da | 2008-09-21 17:42:34 -0400 | [diff] [blame] | 33 | |
| 34 | /* |
| 35 | * Get the current Python threadstate and put it somewhere any code running |
| 36 | * in this thread can get it, if it needs to restore the threadstate to run |
| 37 | * some Python. |
| 38 | */ |
| 39 | # define MY_BEGIN_ALLOW_THREADS(ignored) \ |
Jean-Paul Calderone | d3feb01 | 2009-03-22 12:21:17 -0400 | [diff] [blame] | 40 | PyThread_delete_key_value(_pyOpenSSL_tstate_key); \ |
Jean-Paul Calderone | 00db9da | 2008-09-21 17:42:34 -0400 | [diff] [blame] | 41 | PyThread_set_key_value(_pyOpenSSL_tstate_key, PyEval_SaveThread()); |
| 42 | |
| 43 | /* |
| 44 | * Get the previous Python threadstate and restore it. |
| 45 | */ |
| 46 | # define MY_END_ALLOW_THREADS(ignored) \ |
| 47 | PyEval_RestoreThread(PyThread_get_key_value(_pyOpenSSL_tstate_key)); |
| 48 | |
Jean-Paul Calderone | 897bc25 | 2008-02-18 20:50:23 -0500 | [diff] [blame] | 49 | #else |
| 50 | # define MY_BEGIN_ALLOW_THREADS(st) |
| 51 | # define MY_END_ALLOW_THREADS(st) { st = NULL; } |
| 52 | #endif |
| 53 | |
| 54 | #if !defined(PY_MAJOR_VERSION) || PY_VERSION_HEX < 0x02000000 |
| 55 | static int |
| 56 | PyModule_AddObject(PyObject *m, char *name, PyObject *o) |
| 57 | { |
| 58 | PyObject *dict; |
| 59 | if (!PyModule_Check(m) || o == NULL) |
| 60 | return -1; |
| 61 | dict = PyModule_GetDict(m); |
| 62 | if (dict == NULL) |
| 63 | return -1; |
| 64 | if (PyDict_SetItemString(dict, name, o)) |
| 65 | return -1; |
| 66 | Py_DECREF(o); |
| 67 | return 0; |
| 68 | } |
| 69 | |
| 70 | static int |
| 71 | PyModule_AddIntConstant(PyObject *m, char *name, long value) |
| 72 | { |
| 73 | return PyModule_AddObject(m, name, PyInt_FromLong(value)); |
| 74 | } |
| 75 | |
| 76 | static int PyObject_AsFileDescriptor(PyObject *o) |
| 77 | { |
| 78 | int fd; |
| 79 | PyObject *meth; |
| 80 | |
| 81 | if (PyInt_Check(o)) { |
| 82 | fd = PyInt_AsLong(o); |
| 83 | } |
| 84 | else if (PyLong_Check(o)) { |
| 85 | fd = PyLong_AsLong(o); |
| 86 | } |
| 87 | else if ((meth = PyObject_GetAttrString(o, "fileno")) != NULL) |
| 88 | { |
| 89 | PyObject *fno = PyEval_CallObject(meth, NULL); |
| 90 | Py_DECREF(meth); |
| 91 | if (fno == NULL) |
| 92 | return -1; |
| 93 | |
| 94 | if (PyInt_Check(fno)) { |
| 95 | fd = PyInt_AsLong(fno); |
| 96 | Py_DECREF(fno); |
| 97 | } |
| 98 | else if (PyLong_Check(fno)) { |
| 99 | fd = PyLong_AsLong(fno); |
| 100 | Py_DECREF(fno); |
| 101 | } |
| 102 | else { |
| 103 | PyErr_SetString(PyExc_TypeError, "fileno() returned a non-integer"); |
| 104 | Py_DECREF(fno); |
| 105 | return -1; |
| 106 | } |
| 107 | } |
| 108 | else { |
| 109 | PyErr_SetString(PyExc_TypeError, "argument must be an int, or have a fileno() method."); |
| 110 | return -1; |
| 111 | } |
| 112 | |
| 113 | if (fd < 0) { |
| 114 | PyErr_Format(PyExc_ValueError, "file descriptor cannot be a negative integer (%i)", fd); |
| 115 | return -1; |
| 116 | } |
| 117 | return fd; |
| 118 | } |
| 119 | #endif |
| 120 | |
| 121 | |
| 122 | |
| 123 | #endif |