summaryrefslogtreecommitdiffstats
path: root/typewrappers.h
blob: d871d3fcc7a8f43d4b4fd9ed5fdb4f5ed8efe4dd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
/*
 * libvirt_wrap.h: type wrappers for libvir python bindings
 *
 * Copyright (C) 2005, 2011-2012 Red Hat, Inc.
 *
 * Daniel Veillard <veillard@redhat.com>
 */

#include <Python.h>
#include <stdbool.h>
#include <libvirt/libvirt.h>
#include <libvirt/virterror.h>

#ifdef __GNUC__
# ifdef ATTRIBUTE_UNUSED
#  undef ATTRIBUTE_UNUSED
# endif
# ifndef ATTRIBUTE_UNUSED
#  define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
# endif /* ATTRIBUTE_UNUSED */
#else
# define ATTRIBUTE_UNUSED
#endif

/* Work around really old python.  */
#if PY_MAJOR_VERSION == 2 && PY_MINOR_VERSION < 5
typedef ssize_t Py_ssize_t;
#endif

#define PyvirConnect_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirConnect_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virConnectPtr obj;
} PyvirConnect_Object;


#define PyvirDomain_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirDomain_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virDomainPtr obj;
} PyvirDomain_Object;


#define PyvirNetwork_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirNetwork_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virNetworkPtr obj;
} PyvirNetwork_Object;


#define PyvirInterface_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirInterface_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virInterfacePtr obj;
} PyvirInterface_Object;


#define PyvirStoragePool_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirStoragePool_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virStoragePoolPtr obj;
} PyvirStoragePool_Object;


#define PyvirStorageVol_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirStorageVol_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virStorageVolPtr obj;
} PyvirStorageVol_Object;


#define PyvirNodeDevice_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirNodeDevice_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virNodeDevicePtr obj;
} PyvirNodeDevice_Object;

#define PyvirSecret_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirSecret_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virSecretPtr obj;
} PyvirSecret_Object;

#define PyvirNWFilter_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirNWFilter_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virNWFilterPtr obj;
} PyvirNWFilter_Object;


#define PyvirStream_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirStream_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virStreamPtr obj;
} PyvirStream_Object;


#define PyvirDomainSnapshot_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirDomainSnapshot_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virDomainSnapshotPtr obj;
} PyvirDomainSnapshot_Object;


#define PyvirEventHandleCallback_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirEventHandleCallback_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virEventHandleCallback obj;
} PyvirEventHandleCallback_Object;

#define PyvirEventTimeoutCallback_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirEventTimeoutCallback_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virEventTimeoutCallback obj;
} PyvirEventTimeoutCallback_Object;

#define PyvirFreeCallback_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirFreeCallback_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    virFreeCallback obj;
} PyvirFreeCallback_Object;

#define PyvirVoidPtr_Get(v) (((v) == Py_None) ? NULL : \
        (((PyvirVoidPtr_Object *)(v))->obj))

typedef struct {
    PyObject_HEAD
    void* obj;
} PyvirVoidPtr_Object;

PyObject * libvirt_intWrap(int val);
PyObject * libvirt_longWrap(long val);
PyObject * libvirt_ulongWrap(unsigned long val);
PyObject * libvirt_longlongWrap(long long val);
PyObject * libvirt_ulonglongWrap(unsigned long long val);
PyObject * libvirt_charPtrWrap(char *str);
PyObject * libvirt_charPtrSizeWrap(char *str, Py_ssize_t size);
PyObject * libvirt_constcharPtrWrap(const char *str);
int libvirt_intUnwrap(PyObject *obj, int *val);
int libvirt_uintUnwrap(PyObject *obj, unsigned int *val);
int libvirt_longUnwrap(PyObject *obj, long *val);
int libvirt_ulongUnwrap(PyObject *obj, unsigned long *val);
int libvirt_longlongUnwrap(PyObject *obj, long long *val);
int libvirt_ulonglongUnwrap(PyObject *obj, unsigned long long *val);
int libvirt_doubleUnwrap(PyObject *obj, double *val);
int libvirt_boolUnwrap(PyObject *obj, bool *val);
PyObject * libvirt_virConnectPtrWrap(virConnectPtr node);
PyObject * libvirt_virDomainPtrWrap(virDomainPtr node);
PyObject * libvirt_virNetworkPtrWrap(virNetworkPtr node);
PyObject * libvirt_virInterfacePtrWrap(virInterfacePtr node);
PyObject * libvirt_virStoragePoolPtrWrap(virStoragePoolPtr node);
PyObject * libvirt_virStorageVolPtrWrap(virStorageVolPtr node);
PyObject * libvirt_virEventHandleCallbackWrap(virEventHandleCallback node);
PyObject * libvirt_virEventTimeoutCallbackWrap(virEventTimeoutCallback node);
PyObject * libvirt_virFreeCallbackWrap(virFreeCallback node);
PyObject * libvirt_virVoidPtrWrap(void* node);
PyObject * libvirt_virNodeDevicePtrWrap(virNodeDevicePtr node);
PyObject * libvirt_virSecretPtrWrap(virSecretPtr node);
PyObject * libvirt_virNWFilterPtrWrap(virNWFilterPtr node);
PyObject * libvirt_virStreamPtrWrap(virStreamPtr node);
PyObject * libvirt_virDomainSnapshotPtrWrap(virDomainSnapshotPtr node);


/* Provide simple macro statement wrappers (adapted from GLib, in turn from Perl):
 *  LIBVIRT_STMT_START { statements; } LIBVIRT_STMT_END;
 *  can be used as a single statement, as in
 *  if (x) LIBVIRT_STMT_START { ... } LIBVIRT_STMT_END; else ...
 *
 *  When GCC is compiling C code in non-ANSI mode, it will use the
 *  compiler __extension__ to wrap the statements within `({' and '})' braces.
 *  When compiling on platforms where configure has defined
 *  HAVE_DOWHILE_MACROS, statements will be wrapped with `do' and `while (0)'.
 *  For any other platforms (SunOS4 is known to have this issue), wrap the
 *  statements with `if (1)' and `else (void) 0'.
 */
#if !(defined (LIBVIRT_STMT_START) && defined (LIBVIRT_STMT_END))
# if defined (__GNUC__) && !defined (__STRICT_ANSI__) && !defined (__cplusplus)
#  define LIBVIRT_STMT_START (void) __extension__ (
#  define LIBVIRT_STMT_END )
# else /* !(__GNUC__ && !__STRICT_ANSI__ && !__cplusplus) */
#  if defined (HAVE_DOWHILE_MACROS)
#   define LIBVIRT_STMT_START do
#   define LIBVIRT_STMT_END while (0)
#  else /* !HAVE_DOWHILE_MACROS */
#   define LIBVIRT_STMT_START if (1)
#   define LIBVIRT_STMT_END else (void) 0
#  endif /* !HAVE_DOWHILE_MACROS */
# endif /* !(__GNUC__ && !__STRICT_ANSI__ && !__cplusplus) */
#endif

#define LIBVIRT_BEGIN_ALLOW_THREADS			\
  LIBVIRT_STMT_START {					\
    PyThreadState *_save = NULL;			\
    if (PyEval_ThreadsInitialized())			\
      _save = PyEval_SaveThread();

#define LIBVIRT_END_ALLOW_THREADS                           \
  if (PyEval_ThreadsInitialized())			    \
    PyEval_RestoreThread(_save);			    \
    } LIBVIRT_STMT_END

#define LIBVIRT_ENSURE_THREAD_STATE			\
  LIBVIRT_STMT_START {					\
    PyGILState_STATE _save = PyGILState_UNLOCKED;	\
    if (PyEval_ThreadsInitialized())			\
      _save = PyGILState_Ensure();

#define LIBVIRT_RELEASE_THREAD_STATE                           \
  if (PyEval_ThreadsInitialized())			       \
    PyGILState_Release(_save);				       \
  } LIBVIRT_STMT_END