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1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2016 John Spray <john.spray@redhat.com> | |
7 | * | |
8 | * This is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License version 2.1, as published by the Free Software | |
11 | * Foundation. See file COPYING. | |
12 | */ | |
13 | ||
14 | ||
15 | #include "BaseMgrStandbyModule.h" | |
16 | ||
17 | #include "StandbyPyModules.h" | |
18 | ||
19 | ||
20 | #define dout_context g_ceph_context | |
21 | #define dout_subsys ceph_subsys_mgr | |
22 | ||
23 | typedef struct { | |
24 | PyObject_HEAD | |
25 | StandbyPyModule *this_module; | |
26 | } BaseMgrStandbyModule; | |
27 | ||
28 | static PyObject * | |
29 | BaseMgrStandbyModule_new(PyTypeObject *type, PyObject *args, PyObject *kwds) | |
30 | { | |
31 | BaseMgrStandbyModule *self; | |
32 | ||
33 | self = (BaseMgrStandbyModule *)type->tp_alloc(type, 0); | |
34 | ||
35 | return (PyObject *)self; | |
36 | } | |
37 | ||
38 | static int | |
39 | BaseMgrStandbyModule_init(BaseMgrStandbyModule *self, PyObject *args, PyObject *kwds) | |
40 | { | |
41 | PyObject *this_module_capsule = nullptr; | |
42 | static const char *kwlist[] = {"this_module", NULL}; | |
43 | ||
44 | if (! PyArg_ParseTupleAndKeywords(args, kwds, "O", | |
45 | const_cast<char**>(kwlist), | |
46 | &this_module_capsule)) { | |
47 | return -1; | |
48 | } | |
49 | ||
50 | self->this_module = (StandbyPyModule*)PyCapsule_GetPointer( | |
51 | this_module_capsule, nullptr); | |
52 | assert(self->this_module); | |
53 | ||
54 | return 0; | |
55 | } | |
56 | ||
57 | static PyObject* | |
58 | ceph_get_mgr_id(BaseMgrStandbyModule *self, PyObject *args) | |
59 | { | |
60 | return PyString_FromString(g_conf->name.get_id().c_str()); | |
61 | } | |
62 | ||
63 | static PyObject* | |
64 | ceph_config_get(BaseMgrStandbyModule *self, PyObject *args) | |
65 | { | |
66 | char *what = nullptr; | |
67 | if (!PyArg_ParseTuple(args, "s:ceph_config_get", &what)) { | |
68 | derr << "Invalid args!" << dendl; | |
69 | return nullptr; | |
70 | } | |
71 | ||
72 | std::string value; | |
73 | bool found = self->this_module->get_config(what, &value); | |
74 | if (found) { | |
75 | dout(10) << "ceph_config_get " << what << " found: " << value.c_str() << dendl; | |
76 | return PyString_FromString(value.c_str()); | |
77 | } else { | |
78 | dout(4) << "ceph_config_get " << what << " not found " << dendl; | |
79 | Py_RETURN_NONE; | |
80 | } | |
81 | } | |
82 | ||
83 | static PyObject* | |
84 | ceph_get_active_uri(BaseMgrStandbyModule *self, PyObject *args) | |
85 | { | |
86 | return PyString_FromString(self->this_module->get_active_uri().c_str()); | |
87 | } | |
88 | ||
89 | static PyObject* | |
90 | ceph_log(BaseMgrStandbyModule *self, PyObject *args) | |
91 | { | |
92 | int level = 0; | |
93 | char *record = nullptr; | |
94 | if (!PyArg_ParseTuple(args, "is:log", &level, &record)) { | |
95 | return nullptr; | |
96 | } | |
97 | ||
98 | assert(self->this_module); | |
99 | ||
100 | self->this_module->log(level, record); | |
101 | ||
102 | Py_RETURN_NONE; | |
103 | } | |
104 | ||
105 | PyMethodDef BaseMgrStandbyModule_methods[] = { | |
106 | ||
107 | {"_ceph_get_mgr_id", (PyCFunction)ceph_get_mgr_id, METH_NOARGS, | |
108 | "Get the name of the Mgr daemon where we are running"}, | |
109 | ||
110 | {"_ceph_get_config", (PyCFunction)ceph_config_get, METH_VARARGS, | |
111 | "Get a configuration value"}, | |
112 | ||
113 | {"_ceph_get_active_uri", (PyCFunction)ceph_get_active_uri, METH_NOARGS, | |
114 | "Get the URI of the active instance of this module, if any"}, | |
115 | ||
116 | {"_ceph_log", (PyCFunction)ceph_log, METH_VARARGS, | |
117 | "Emit a log message"}, | |
118 | ||
119 | {NULL, NULL, 0, NULL} | |
120 | }; | |
121 | ||
122 | PyTypeObject BaseMgrStandbyModuleType = { | |
123 | PyVarObject_HEAD_INIT(NULL, 0) | |
124 | "ceph_module.BaseMgrStandbyModule", /* tp_name */ | |
125 | sizeof(BaseMgrStandbyModule), /* tp_basicsize */ | |
126 | 0, /* tp_itemsize */ | |
127 | 0, /* tp_dealloc */ | |
128 | 0, /* tp_print */ | |
129 | 0, /* tp_getattr */ | |
130 | 0, /* tp_setattr */ | |
131 | 0, /* tp_compare */ | |
132 | 0, /* tp_repr */ | |
133 | 0, /* tp_as_number */ | |
134 | 0, /* tp_as_sequence */ | |
135 | 0, /* tp_as_mapping */ | |
136 | 0, /* tp_hash */ | |
137 | 0, /* tp_call */ | |
138 | 0, /* tp_str */ | |
139 | 0, /* tp_getattro */ | |
140 | 0, /* tp_setattro */ | |
141 | 0, /* tp_as_buffer */ | |
142 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */ | |
143 | "ceph-mgr Standby Python Plugin", /* tp_doc */ | |
144 | 0, /* tp_traverse */ | |
145 | 0, /* tp_clear */ | |
146 | 0, /* tp_richcompare */ | |
147 | 0, /* tp_weaklistoffset */ | |
148 | 0, /* tp_iter */ | |
149 | 0, /* tp_iternext */ | |
150 | BaseMgrStandbyModule_methods, /* tp_methods */ | |
151 | 0, /* tp_members */ | |
152 | 0, /* tp_getset */ | |
153 | 0, /* tp_base */ | |
154 | 0, /* tp_dict */ | |
155 | 0, /* tp_descr_get */ | |
156 | 0, /* tp_descr_set */ | |
157 | 0, /* tp_dictoffset */ | |
158 | (initproc)BaseMgrStandbyModule_init, /* tp_init */ | |
159 | 0, /* tp_alloc */ | |
160 | BaseMgrStandbyModule_new, /* tp_new */ | |
161 | }; |