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c23c8659 ML |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013-2014 Martin Ling <martin-sigrok@earth.li> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
07443fd2 ML |
20 | /** |
21 | ||
22 | @mainpage API Reference | |
23 | ||
24 | Introduction | |
25 | ------------ | |
26 | ||
52ff4f6a UH |
27 | The libsigrokcxx API provides an object-oriented C++ interface to the |
28 | functionality in libsigrok, including automatic memory and resource management. | |
07443fd2 ML |
29 | |
30 | It is built on top of the public libsigrok C API, and is designed to be used as | |
31 | a standalone alternative API. Programs should not mix usage of the C and C++ | |
32 | APIs; the C++ interface code needs to have full control of all C API calls for | |
33 | resources to be managed correctly. | |
34 | ||
35 | Memory management | |
36 | ----------------- | |
37 | ||
38 | All runtime objects created through the C++ API are passed and accessed via | |
39 | shared pointers, using the C++11 std::shared_ptr implementation. This means | |
40 | that a reference count is kept for each object. | |
41 | ||
42 | Shared pointers can be copied and assigned in a user's program, automatically | |
43 | updating their reference count and deleting objects when they are no longer in | |
44 | use. The C++ interface code also keeps track of internal dependencies between | |
45 | libsigrok resources, and ensures that objects are not prematurely deleted when | |
46 | their resources are in use by other objects. | |
47 | ||
52ff4f6a UH |
48 | This means that management of libsigrokcxx objects and their underlying |
49 | libsigrok resources can be treated as fully automatic. As long as all shared | |
50 | pointers to objects are deleted or reassigned when no longer in use, all | |
51 | underlying resources will be released at the right time. | |
07443fd2 ML |
52 | |
53 | Getting started | |
54 | --------------- | |
55 | ||
56 | Usage of the C++ API needs to begin with a call to sigrok::Context::create(). | |
57 | This will create the global libsigrok context and returns a shared pointer to | |
58 | the sigrok::Context object. Methods on this object provide access to the | |
59 | hardware drivers, input and output formats supported by the library, as well | |
60 | as means of creating other objects such as sessions and triggers. | |
61 | ||
62 | Error handling | |
63 | -------------- | |
64 | ||
65 | When any libsigrok C API call returns an error, a sigrok::Error exception is | |
66 | raised, which provides access to the error code and description. | |
67 | ||
68 | */ | |
69 | ||
1b40fdb8 UH |
70 | #ifndef LIBSIGROKCXX_HPP |
71 | #define LIBSIGROKCXX_HPP | |
c23c8659 | 72 | |
8b2a1843 | 73 | #include <libsigrok/libsigrok.h> |
e0e6aecc | 74 | #include <glibmm.h> |
c23c8659 ML |
75 | |
76 | #include <stdexcept> | |
77 | #include <memory> | |
78 | #include <vector> | |
79 | #include <map> | |
4c7c4194 | 80 | #include <set> |
c23c8659 ML |
81 | |
82 | namespace sigrok | |
83 | { | |
84 | ||
85 | using namespace std; | |
86 | ||
87 | /* Forward declarations */ | |
88 | class SR_API Error; | |
89 | class SR_API Context; | |
90 | class SR_API Driver; | |
91 | class SR_API Device; | |
92 | class SR_API HardwareDevice; | |
93 | class SR_API Channel; | |
c23c8659 ML |
94 | class SR_API Session; |
95 | class SR_API ConfigKey; | |
96 | class SR_API InputFormat; | |
97 | class SR_API OutputFormat; | |
3cd4b381 | 98 | class SR_API OutputFlag; |
c23c8659 ML |
99 | class SR_API LogLevel; |
100 | class SR_API ChannelGroup; | |
101 | class SR_API Trigger; | |
102 | class SR_API TriggerStage; | |
103 | class SR_API TriggerMatch; | |
104 | class SR_API TriggerMatchType; | |
105 | class SR_API ChannelType; | |
106 | class SR_API Packet; | |
107 | class SR_API PacketPayload; | |
108 | class SR_API PacketType; | |
109 | class SR_API Quantity; | |
110 | class SR_API Unit; | |
111 | class SR_API QuantityFlag; | |
ca3291e3 ML |
112 | class SR_API Input; |
113 | class SR_API InputDevice; | |
c23c8659 ML |
114 | class SR_API Output; |
115 | class SR_API DataType; | |
58aa1f83 | 116 | class SR_API Option; |
9fa5b426 | 117 | class SR_API UserDevice; |
c23c8659 ML |
118 | |
119 | /** Exception thrown when an error code is returned by any libsigrok call. */ | |
120 | class SR_API Error: public exception | |
121 | { | |
122 | public: | |
6c11b496 | 123 | explicit Error(int result); |
15914cdb | 124 | ~Error() noexcept; |
c23c8659 | 125 | const int result; |
15914cdb | 126 | const char *what() const noexcept; |
c23c8659 ML |
127 | }; |
128 | ||
541c855e | 129 | /* Base template for classes whose resources are owned by a parent object. */ |
d5d7b09e | 130 | template <class Class, class Parent> |
541c855e | 131 | class SR_API ParentOwned |
c23c8659 | 132 | { |
21d1bec6 DE |
133 | private: |
134 | /* Weak pointer for shared_from_this() implementation. */ | |
135 | weak_ptr<Class> _weak_this; | |
136 | ||
137 | static void reset_parent(Class *object) | |
138 | { | |
139 | if (!object->_parent) | |
140 | throw Error(SR_ERR_BUG); | |
141 | object->_parent.reset(); | |
142 | } | |
143 | ||
7649683c | 144 | protected: |
07443fd2 | 145 | /* Parent object which owns this child object's underlying structure. |
c23c8659 ML |
146 | |
147 | This shared pointer will be null when this child is unused, but | |
148 | will be assigned to point to the parent before any shared pointer | |
149 | to this child is handed out to the user. | |
150 | ||
151 | When the reference count of this child falls to zero, this shared | |
152 | pointer to its parent is reset by a custom deleter on the child's | |
153 | shared pointer. | |
154 | ||
155 | This strategy ensures that the destructors for both the child and | |
156 | the parent are called at the correct time, i.e. only when all | |
157 | references to both the parent and all its children are gone. */ | |
3b161085 | 158 | shared_ptr<Parent> _parent; |
7649683c | 159 | |
d5d7b09e | 160 | ParentOwned() {} |
0d0170ae | 161 | |
0d0170ae | 162 | /* Note, this implementation will create a new smart_ptr if none exists. */ |
bf52cc8c | 163 | shared_ptr<Class> shared_from_this() |
0d0170ae | 164 | { |
67b82fc9 | 165 | shared_ptr<Class> shared = _weak_this.lock(); |
0d0170ae | 166 | |
67b82fc9 | 167 | if (!shared) |
0d0170ae | 168 | { |
67b82fc9 | 169 | shared.reset(static_cast<Class *>(this), &reset_parent); |
3b161085 | 170 | _weak_this = shared; |
0d0170ae ML |
171 | } |
172 | ||
173 | return shared; | |
174 | } | |
175 | ||
b6ab954d | 176 | shared_ptr<Class> share_owned_by(shared_ptr<Parent> parent) |
7649683c | 177 | { |
78132e2a ML |
178 | if (!parent) |
179 | throw Error(SR_ERR_BUG); | |
3b161085 | 180 | this->_parent = parent; |
0d0170ae | 181 | return shared_from_this(); |
7649683c | 182 | } |
0d0170ae | 183 | |
67b82fc9 DE |
184 | public: |
185 | /* Get parent object that owns this object. */ | |
186 | shared_ptr<Parent> parent() | |
7649683c | 187 | { |
67b82fc9 | 188 | return _parent; |
7649683c | 189 | } |
c23c8659 ML |
190 | }; |
191 | ||
90e89c2a | 192 | /* Base template for classes whose resources are owned by the user. */ |
d5d7b09e | 193 | template <class Class> |
90e89c2a ML |
194 | class SR_API UserOwned : public enable_shared_from_this<Class> |
195 | { | |
90e89c2a | 196 | protected: |
d5d7b09e | 197 | UserOwned() {} |
b4ed33a7 | 198 | |
67b82fc9 DE |
199 | shared_ptr<Class> shared_from_this() |
200 | { | |
201 | auto shared = enable_shared_from_this<Class>::shared_from_this(); | |
202 | if (!shared) | |
203 | throw Error(SR_ERR_BUG); | |
204 | return shared; | |
205 | } | |
90e89c2a ML |
206 | }; |
207 | ||
c23c8659 ML |
208 | /** Type of log callback */ |
209 | typedef function<void(const LogLevel *, string message)> LogCallbackFunction; | |
210 | ||
e2eaf858 DE |
211 | /** Resource reader delegate. */ |
212 | class SR_API ResourceReader | |
213 | { | |
214 | public: | |
215 | ResourceReader() {} | |
216 | virtual ~ResourceReader(); | |
217 | private: | |
218 | /** Resource open hook. */ | |
219 | virtual void open(struct sr_resource *res, string name) = 0; | |
220 | /** Resource close hook. */ | |
221 | virtual void close(struct sr_resource *res) = 0; | |
222 | /** Resource read hook. */ | |
223 | virtual size_t read(const struct sr_resource *res, void *buf, size_t count) = 0; | |
224 | ||
225 | static SR_PRIV int open_callback(struct sr_resource *res, | |
0ab8e5d2 | 226 | const char *name, void *cb_data) noexcept; |
e2eaf858 | 227 | static SR_PRIV int close_callback(struct sr_resource *res, |
0ab8e5d2 | 228 | void *cb_data) noexcept; |
e2eaf858 | 229 | static SR_PRIV ssize_t read_callback(const struct sr_resource *res, |
0ab8e5d2 | 230 | void *buf, size_t count, void *cb_data) noexcept; |
e2eaf858 DE |
231 | friend class Context; |
232 | }; | |
233 | ||
07443fd2 | 234 | /** The global libsigrok context */ |
d5d7b09e | 235 | class SR_API Context : public UserOwned<Context> |
c23c8659 ML |
236 | { |
237 | public: | |
238 | /** Create new context */ | |
239 | static shared_ptr<Context> create(); | |
240 | /** libsigrok package version. */ | |
a73d4926 | 241 | static string package_version(); |
c23c8659 | 242 | /** libsigrok library version. */ |
a73d4926 | 243 | static string lib_version(); |
c23c8659 | 244 | /** Available hardware drivers, indexed by name. */ |
3b161085 | 245 | map<string, shared_ptr<Driver> > drivers(); |
c23c8659 | 246 | /** Available input formats, indexed by name. */ |
3b161085 | 247 | map<string, shared_ptr<InputFormat> > input_formats(); |
c23c8659 | 248 | /** Available output formats, indexed by name. */ |
3b161085 | 249 | map<string, shared_ptr<OutputFormat> > output_formats(); |
c23c8659 | 250 | /** Current log level. */ |
15bebf57 | 251 | const LogLevel *log_level() const; |
b6f411ac ML |
252 | /** Set the log level. |
253 | * @param level LogLevel to use. */ | |
c23c8659 | 254 | void set_log_level(const LogLevel *level); |
b6f411ac ML |
255 | /** Set the log callback. |
256 | * @param callback Callback of the form callback(LogLevel, string). */ | |
c23c8659 ML |
257 | void set_log_callback(LogCallbackFunction callback); |
258 | /** Set the log callback to the default handler. */ | |
259 | void set_log_callback_default(); | |
e2eaf858 DE |
260 | /** Install a delegate for reading resource files. |
261 | * @param reader The resource reader delegate, or nullptr to unset. */ | |
262 | void set_resource_reader(ResourceReader *reader); | |
c23c8659 ML |
263 | /** Create a new session. */ |
264 | shared_ptr<Session> create_session(); | |
9fa5b426 ML |
265 | /** Create a new user device. */ |
266 | shared_ptr<UserDevice> create_user_device( | |
267 | string vendor, string model, string version); | |
304be4a7 ML |
268 | /** Create a header packet. */ |
269 | shared_ptr<Packet> create_header_packet(Glib::TimeVal start_time); | |
270 | /** Create a meta packet. */ | |
271 | shared_ptr<Packet> create_meta_packet( | |
d370545d | 272 | const map<const ConfigKey *, Glib::VariantBase> &config); |
304be4a7 ML |
273 | /** Create a logic packet. */ |
274 | shared_ptr<Packet> create_logic_packet( | |
275 | void *data_pointer, size_t data_length, unsigned int unit_size); | |
276 | /** Create an analog packet. */ | |
dd13d47a | 277 | shared_ptr<Packet> create_analog_packet( |
d370545d | 278 | const vector<shared_ptr<Channel> > &channels, |
304be4a7 | 279 | float *data_pointer, unsigned int num_samples, const Quantity *mq, |
d370545d | 280 | const Unit *unit, const vector<const QuantityFlag *> &mqflags); |
b6f411ac ML |
281 | /** Load a saved session. |
282 | * @param filename File name string. */ | |
c23c8659 | 283 | shared_ptr<Session> load_session(string filename); |
b6f411ac ML |
284 | /** Create a new trigger. |
285 | * @param name Name string for new trigger. */ | |
c23c8659 | 286 | shared_ptr<Trigger> create_trigger(string name); |
ca3291e3 ML |
287 | /** Open an input file. |
288 | * @param filename File name string. */ | |
289 | shared_ptr<Input> open_file(string filename); | |
290 | /** Open an input stream based on header data. | |
291 | * @param header Initial data from stream. */ | |
292 | shared_ptr<Input> open_stream(string header); | |
15bebf57 | 293 | map<string, string> serials(shared_ptr<Driver> driver) const; |
21d1bec6 | 294 | private: |
d5d7b09e | 295 | struct sr_context *_structure; |
f17b4546 DE |
296 | map<string, unique_ptr<Driver> > _drivers; |
297 | map<string, unique_ptr<InputFormat> > _input_formats; | |
298 | map<string, unique_ptr<OutputFormat> > _output_formats; | |
3b161085 ML |
299 | Session *_session; |
300 | LogCallbackFunction _log_callback; | |
c23c8659 ML |
301 | Context(); |
302 | ~Context(); | |
c23c8659 ML |
303 | friend class Session; |
304 | friend class Driver; | |
a98729a7 | 305 | friend class std::default_delete<Context>; |
c23c8659 ML |
306 | }; |
307 | ||
4c7c4194 ML |
308 | enum Capability { |
309 | GET = SR_CONF_GET, | |
310 | SET = SR_CONF_SET, | |
311 | LIST = SR_CONF_LIST | |
312 | }; | |
313 | ||
c23c8659 ML |
314 | /** An object that can be configured. */ |
315 | class SR_API Configurable | |
316 | { | |
317 | public: | |
b6f411ac ML |
318 | /** Read configuration for the given key. |
319 | * @param key ConfigKey to read. */ | |
15bebf57 | 320 | Glib::VariantBase config_get(const ConfigKey *key) const; |
b6f411ac ML |
321 | /** Set configuration for the given key to a specified value. |
322 | * @param key ConfigKey to set. | |
323 | * @param value Value to set. */ | |
d370545d | 324 | void config_set(const ConfigKey *key, const Glib::VariantBase &value); |
b6f411ac ML |
325 | /** Enumerate available values for the given configuration key. |
326 | * @param key ConfigKey to enumerate values for. */ | |
15bebf57 | 327 | Glib::VariantContainerBase config_list(const ConfigKey *key) const; |
d54190a3 | 328 | /** Enumerate available keys, according to a given index key. */ |
4c7c4194 | 329 | map<const ConfigKey *, set<Capability> > config_keys(const ConfigKey *key); |
d9eed47d | 330 | /** Check for a key in the list from a given index key. */ |
15bebf57 | 331 | bool config_check(const ConfigKey *key, const ConfigKey *index_key) const; |
c23c8659 ML |
332 | protected: |
333 | Configurable( | |
334 | struct sr_dev_driver *driver, | |
335 | struct sr_dev_inst *sdi, | |
336 | struct sr_channel_group *channel_group); | |
337 | virtual ~Configurable(); | |
338 | struct sr_dev_driver *config_driver; | |
339 | struct sr_dev_inst *config_sdi; | |
340 | struct sr_channel_group *config_channel_group; | |
341 | }; | |
342 | ||
59b74d28 ML |
343 | /** A hardware driver provided by the library */ |
344 | class SR_API Driver : | |
d5d7b09e | 345 | public ParentOwned<Driver, Context>, |
59b74d28 ML |
346 | public Configurable |
347 | { | |
348 | public: | |
349 | /** Name of this driver. */ | |
15bebf57 | 350 | string name() const; |
59b74d28 | 351 | /** Long name for this driver. */ |
15bebf57 | 352 | string long_name() const; |
59b74d28 ML |
353 | /** Scan for devices and return a list of devices found. |
354 | * @param options Mapping of (ConfigKey, value) pairs. */ | |
bf03d635 DE |
355 | vector<shared_ptr<HardwareDevice> > scan(const map<const ConfigKey *, Glib::VariantBase> |
356 | &options = map<const ConfigKey *, Glib::VariantBase>()); | |
21d1bec6 | 357 | private: |
d5d7b09e | 358 | struct sr_dev_driver *_structure; |
3b161085 ML |
359 | bool _initialized; |
360 | vector<HardwareDevice *> _devices; | |
6c11b496 | 361 | explicit Driver(struct sr_dev_driver *structure); |
59b74d28 ML |
362 | ~Driver(); |
363 | friend class Context; | |
364 | friend class HardwareDevice; | |
365 | friend class ChannelGroup; | |
f17b4546 | 366 | friend class std::default_delete<Driver>; |
59b74d28 ML |
367 | }; |
368 | ||
07443fd2 | 369 | /** A generic device, either hardware or virtual */ |
d01d2314 | 370 | class SR_API Device : public Configurable |
c23c8659 ML |
371 | { |
372 | public: | |
373 | /** Vendor name for this device. */ | |
15bebf57 | 374 | string vendor() const; |
c23c8659 | 375 | /** Model name for this device. */ |
15bebf57 | 376 | string model() const; |
c23c8659 | 377 | /** Version string for this device. */ |
15bebf57 | 378 | string version() const; |
d1075e5a | 379 | /** Serial number for this device. */ |
15bebf57 | 380 | string serial_number() const; |
d1075e5a | 381 | /** Connection ID for this device. */ |
15bebf57 | 382 | string connection_id() const; |
c23c8659 | 383 | /** List of the channels available on this device. */ |
3b161085 | 384 | vector<shared_ptr<Channel> > channels(); |
6be7a7f2 | 385 | /** Channel groups available on this device, indexed by name. */ |
3b161085 | 386 | map<string, shared_ptr<ChannelGroup> > channel_groups(); |
c23c8659 ML |
387 | /** Open device. */ |
388 | void open(); | |
389 | /** Close device. */ | |
390 | void close(); | |
391 | protected: | |
6c11b496 | 392 | explicit Device(struct sr_dev_inst *structure); |
c23c8659 | 393 | ~Device(); |
d01d2314 | 394 | virtual shared_ptr<Device> get_shared_from_this() = 0; |
4178d971 | 395 | shared_ptr<Channel> get_channel(struct sr_channel *ptr); |
21d1bec6 | 396 | |
3b161085 | 397 | struct sr_dev_inst *_structure; |
f17b4546 | 398 | map<struct sr_channel *, unique_ptr<Channel> > _channels; |
21d1bec6 | 399 | private: |
f17b4546 | 400 | map<string, unique_ptr<ChannelGroup> > _channel_groups; |
a98729a7 | 401 | |
c23c8659 ML |
402 | friend class Session; |
403 | friend class Channel; | |
404 | friend class ChannelGroup; | |
405 | friend class Output; | |
dd13d47a | 406 | friend class Analog; |
a98729a7 | 407 | friend class std::default_delete<Device>; |
c23c8659 ML |
408 | }; |
409 | ||
07443fd2 | 410 | /** A real hardware device, connected via a driver */ |
6e5240f4 | 411 | class SR_API HardwareDevice : |
d5d7b09e | 412 | public UserOwned<HardwareDevice>, |
6e5240f4 | 413 | public Device |
c23c8659 ML |
414 | { |
415 | public: | |
416 | /** Driver providing this device. */ | |
3b161085 | 417 | shared_ptr<Driver> driver(); |
21d1bec6 | 418 | private: |
a4e47454 | 419 | HardwareDevice(shared_ptr<Driver> driver, struct sr_dev_inst *structure); |
c23c8659 | 420 | ~HardwareDevice(); |
d01d2314 | 421 | shared_ptr<Device> get_shared_from_this(); |
a4e47454 | 422 | shared_ptr<Driver> _driver; |
a98729a7 | 423 | |
c23c8659 ML |
424 | friend class Driver; |
425 | friend class ChannelGroup; | |
a98729a7 | 426 | friend class std::default_delete<HardwareDevice>; |
c23c8659 ML |
427 | }; |
428 | ||
9fa5b426 ML |
429 | /** A virtual device, created by the user */ |
430 | class SR_API UserDevice : | |
d5d7b09e | 431 | public UserOwned<UserDevice>, |
9fa5b426 ML |
432 | public Device |
433 | { | |
434 | public: | |
435 | /** Add a new channel to this device. */ | |
436 | shared_ptr<Channel> add_channel(unsigned int index, const ChannelType *type, string name); | |
21d1bec6 | 437 | private: |
9fa5b426 ML |
438 | UserDevice(string vendor, string model, string version); |
439 | ~UserDevice(); | |
440 | shared_ptr<Device> get_shared_from_this(); | |
a98729a7 | 441 | |
9fa5b426 | 442 | friend class Context; |
a98729a7 | 443 | friend class std::default_delete<UserDevice>; |
9fa5b426 ML |
444 | }; |
445 | ||
07443fd2 | 446 | /** A channel on a device */ |
bf52cc8c | 447 | class SR_API Channel : |
d5d7b09e | 448 | public ParentOwned<Channel, Device> |
c23c8659 ML |
449 | { |
450 | public: | |
451 | /** Current name of this channel. */ | |
15bebf57 | 452 | string name() const; |
b6f411ac ML |
453 | /** Set the name of this channel. * |
454 | * @param name Name string to set. */ | |
c23c8659 ML |
455 | void set_name(string name); |
456 | /** Type of this channel. */ | |
15bebf57 | 457 | const ChannelType *type() const; |
c23c8659 | 458 | /** Enabled status of this channel. */ |
15bebf57 | 459 | bool enabled() const; |
b6f411ac ML |
460 | /** Set the enabled status of this channel. |
461 | * @param value Boolean value to set. */ | |
c23c8659 | 462 | void set_enabled(bool value); |
06bd935e | 463 | /** Get the index number of this channel. */ |
15bebf57 | 464 | unsigned int index() const; |
21d1bec6 | 465 | private: |
6c11b496 | 466 | explicit Channel(struct sr_channel *structure); |
c23c8659 | 467 | ~Channel(); |
d5d7b09e | 468 | struct sr_channel *_structure; |
3b161085 | 469 | const ChannelType * const _type; |
c23c8659 | 470 | friend class Device; |
9fa5b426 | 471 | friend class UserDevice; |
c23c8659 ML |
472 | friend class ChannelGroup; |
473 | friend class Session; | |
474 | friend class TriggerStage; | |
304be4a7 | 475 | friend class Context; |
f17b4546 | 476 | friend class std::default_delete<Channel>; |
c23c8659 ML |
477 | }; |
478 | ||
07443fd2 | 479 | /** A group of channels on a device, which share some configuration */ |
c23c8659 | 480 | class SR_API ChannelGroup : |
d5d7b09e | 481 | public ParentOwned<ChannelGroup, Device>, |
c23c8659 ML |
482 | public Configurable |
483 | { | |
484 | public: | |
485 | /** Name of this channel group. */ | |
15bebf57 | 486 | string name() const; |
c23c8659 | 487 | /** List of the channels in this group. */ |
3b161085 | 488 | vector<shared_ptr<Channel> > channels(); |
21d1bec6 | 489 | private: |
f17b4546 | 490 | ChannelGroup(const Device *device, struct sr_channel_group *structure); |
c23c8659 | 491 | ~ChannelGroup(); |
3b161085 | 492 | vector<Channel *> _channels; |
6be7a7f2 | 493 | friend class Device; |
f17b4546 | 494 | friend class std::default_delete<ChannelGroup>; |
c23c8659 ML |
495 | }; |
496 | ||
07443fd2 | 497 | /** A trigger configuration */ |
d5d7b09e | 498 | class SR_API Trigger : public UserOwned<Trigger> |
c23c8659 ML |
499 | { |
500 | public: | |
b6f411ac | 501 | /** Name of this trigger configuration. */ |
15bebf57 | 502 | string name() const; |
b6f411ac | 503 | /** List of the stages in this trigger. */ |
3b161085 | 504 | vector<shared_ptr<TriggerStage> > stages(); |
b6f411ac | 505 | /** Add a new stage to this trigger. */ |
c23c8659 | 506 | shared_ptr<TriggerStage> add_stage(); |
21d1bec6 | 507 | private: |
c23c8659 ML |
508 | Trigger(shared_ptr<Context> context, string name); |
509 | ~Trigger(); | |
d5d7b09e | 510 | struct sr_trigger *_structure; |
3b161085 | 511 | shared_ptr<Context> _context; |
f17b4546 | 512 | vector<unique_ptr<TriggerStage> > _stages; |
c23c8659 | 513 | friend class Context; |
6fa0eb86 | 514 | friend class Session; |
a98729a7 | 515 | friend class std::default_delete<Trigger>; |
c23c8659 ML |
516 | }; |
517 | ||
07443fd2 | 518 | /** A stage in a trigger configuration */ |
bf52cc8c | 519 | class SR_API TriggerStage : |
d5d7b09e | 520 | public ParentOwned<TriggerStage, Trigger> |
c23c8659 ML |
521 | { |
522 | public: | |
b6f411ac | 523 | /** Index number of this stage. */ |
15bebf57 | 524 | int number() const; |
b6f411ac | 525 | /** List of match conditions on this stage. */ |
3b161085 | 526 | vector<shared_ptr<TriggerMatch> > matches(); |
b6f411ac ML |
527 | /** Add a new match condition to this stage. |
528 | * @param channel Channel to match on. | |
529 | * @param type TriggerMatchType to apply. */ | |
c23c8659 | 530 | void add_match(shared_ptr<Channel> channel, const TriggerMatchType *type); |
b6f411ac ML |
531 | /** Add a new match condition to this stage. |
532 | * @param channel Channel to match on. | |
533 | * @param type TriggerMatchType to apply. | |
534 | * @param value Threshold value. */ | |
c23c8659 | 535 | void add_match(shared_ptr<Channel> channel, const TriggerMatchType *type, float value); |
21d1bec6 | 536 | private: |
d5d7b09e | 537 | struct sr_trigger_stage *_structure; |
f17b4546 | 538 | vector<unique_ptr<TriggerMatch> > _matches; |
6c11b496 | 539 | explicit TriggerStage(struct sr_trigger_stage *structure); |
c23c8659 ML |
540 | ~TriggerStage(); |
541 | friend class Trigger; | |
f17b4546 | 542 | friend class std::default_delete<TriggerStage>; |
c23c8659 ML |
543 | }; |
544 | ||
07443fd2 | 545 | /** A match condition in a trigger configuration */ |
bf52cc8c | 546 | class SR_API TriggerMatch : |
d5d7b09e | 547 | public ParentOwned<TriggerMatch, TriggerStage> |
c23c8659 ML |
548 | { |
549 | public: | |
b6f411ac | 550 | /** Channel this condition matches on. */ |
3b161085 | 551 | shared_ptr<Channel> channel(); |
b6f411ac | 552 | /** Type of match. */ |
15bebf57 | 553 | const TriggerMatchType *type() const; |
b6f411ac | 554 | /** Threshold value. */ |
15bebf57 | 555 | float value() const; |
21d1bec6 | 556 | private: |
c23c8659 ML |
557 | TriggerMatch(struct sr_trigger_match *structure, shared_ptr<Channel> channel); |
558 | ~TriggerMatch(); | |
d5d7b09e | 559 | struct sr_trigger_match *_structure; |
3b161085 | 560 | shared_ptr<Channel> _channel; |
c23c8659 | 561 | friend class TriggerStage; |
f17b4546 | 562 | friend class std::default_delete<TriggerMatch>; |
c23c8659 ML |
563 | }; |
564 | ||
f91cf612 DE |
565 | /** Type of session stopped callback */ |
566 | typedef function<void()> SessionStoppedCallback; | |
567 | ||
c23c8659 ML |
568 | /** Type of datafeed callback */ |
569 | typedef function<void(shared_ptr<Device>, shared_ptr<Packet>)> | |
570 | DatafeedCallbackFunction; | |
571 | ||
07443fd2 | 572 | /* Data required for C callback function to call a C++ datafeed callback */ |
c23c8659 ML |
573 | class SR_PRIV DatafeedCallbackData |
574 | { | |
575 | public: | |
576 | void run(const struct sr_dev_inst *sdi, | |
577 | const struct sr_datafeed_packet *pkt); | |
21d1bec6 | 578 | private: |
3b161085 | 579 | DatafeedCallbackFunction _callback; |
c23c8659 ML |
580 | DatafeedCallbackData(Session *session, |
581 | DatafeedCallbackFunction callback); | |
3b161085 | 582 | Session *_session; |
c23c8659 ML |
583 | friend class Session; |
584 | }; | |
585 | ||
cac58676 ML |
586 | /** A virtual device associated with a stored session */ |
587 | class SR_API SessionDevice : | |
d5d7b09e | 588 | public ParentOwned<SessionDevice, Session>, |
cac58676 ML |
589 | public Device |
590 | { | |
21d1bec6 | 591 | private: |
6c11b496 | 592 | explicit SessionDevice(struct sr_dev_inst *sdi); |
cac58676 ML |
593 | ~SessionDevice(); |
594 | shared_ptr<Device> get_shared_from_this(); | |
a98729a7 | 595 | |
cac58676 | 596 | friend class Session; |
f17b4546 | 597 | friend class std::default_delete<SessionDevice>; |
cac58676 ML |
598 | }; |
599 | ||
07443fd2 | 600 | /** A sigrok session */ |
d5d7b09e | 601 | class SR_API Session : public UserOwned<Session> |
c23c8659 ML |
602 | { |
603 | public: | |
b6f411ac ML |
604 | /** Add a device to this session. |
605 | * @param device Device to add. */ | |
c23c8659 ML |
606 | void add_device(shared_ptr<Device> device); |
607 | /** List devices attached to this session. */ | |
3b161085 | 608 | vector<shared_ptr<Device> > devices(); |
c23c8659 ML |
609 | /** Remove all devices from this session. */ |
610 | void remove_devices(); | |
b6f411ac ML |
611 | /** Add a datafeed callback to this session. |
612 | * @param callback Callback of the form callback(Device, Packet). */ | |
c23c8659 ML |
613 | void add_datafeed_callback(DatafeedCallbackFunction callback); |
614 | /** Remove all datafeed callbacks from this session. */ | |
615 | void remove_datafeed_callbacks(); | |
c23c8659 ML |
616 | /** Start the session. */ |
617 | void start(); | |
618 | /** Run the session event loop. */ | |
619 | void run(); | |
620 | /** Stop the session. */ | |
621 | void stop(); | |
f91cf612 DE |
622 | /** Return whether the session is running. */ |
623 | bool is_running() const; | |
624 | /** Set callback to be invoked on session stop. */ | |
625 | void set_stopped_callback(SessionStoppedCallback callback); | |
6fa0eb86 | 626 | /** Get current trigger setting. */ |
3b161085 | 627 | shared_ptr<Trigger> trigger(); |
624d1610 UH |
628 | /** Get the context. */ |
629 | shared_ptr<Context> context(); | |
b6f411ac ML |
630 | /** Set trigger setting. |
631 | * @param trigger Trigger object to use. */ | |
6fa0eb86 | 632 | void set_trigger(shared_ptr<Trigger> trigger); |
1411f7d8 | 633 | /** Get filename this session was loaded from. */ |
15bebf57 | 634 | string filename() const; |
21d1bec6 | 635 | private: |
6c11b496 | 636 | explicit Session(shared_ptr<Context> context); |
c23c8659 ML |
637 | Session(shared_ptr<Context> context, string filename); |
638 | ~Session(); | |
ca4e307a | 639 | shared_ptr<Device> get_device(const struct sr_dev_inst *sdi); |
d5d7b09e | 640 | struct sr_session *_structure; |
3b161085 | 641 | const shared_ptr<Context> _context; |
f17b4546 | 642 | map<const struct sr_dev_inst *, unique_ptr<SessionDevice> > _owned_devices; |
ca4e307a | 643 | map<const struct sr_dev_inst *, shared_ptr<Device> > _other_devices; |
f17b4546 | 644 | vector<unique_ptr<DatafeedCallbackData> > _datafeed_callbacks; |
f91cf612 | 645 | SessionStoppedCallback _stopped_callback; |
98d39b91 | 646 | string _filename; |
3b161085 | 647 | shared_ptr<Trigger> _trigger; |
a98729a7 | 648 | |
c23c8659 ML |
649 | friend class Context; |
650 | friend class DatafeedCallbackData; | |
98d39b91 | 651 | friend class SessionDevice; |
a98729a7 | 652 | friend class std::default_delete<Session>; |
c23c8659 ML |
653 | }; |
654 | ||
07443fd2 | 655 | /** A packet on the session datafeed */ |
d5d7b09e | 656 | class SR_API Packet : public UserOwned<Packet> |
c23c8659 ML |
657 | { |
658 | public: | |
90ba83f2 | 659 | /** Type of this packet. */ |
15bebf57 | 660 | const PacketType *type() const; |
c23c8659 | 661 | /** Payload of this packet. */ |
3b161085 | 662 | shared_ptr<PacketPayload> payload(); |
21d1bec6 | 663 | private: |
2928f47d ML |
664 | Packet(shared_ptr<Device> device, |
665 | const struct sr_datafeed_packet *structure); | |
c23c8659 | 666 | ~Packet(); |
d5d7b09e | 667 | const struct sr_datafeed_packet *_structure; |
3b161085 | 668 | shared_ptr<Device> _device; |
f17b4546 | 669 | unique_ptr<PacketPayload> _payload; |
a98729a7 | 670 | |
c23c8659 ML |
671 | friend class Session; |
672 | friend class Output; | |
673 | friend class DatafeedCallbackData; | |
2928f47d ML |
674 | friend class Header; |
675 | friend class Meta; | |
676 | friend class Logic; | |
dd13d47a | 677 | friend class Analog; |
304be4a7 | 678 | friend class Context; |
a98729a7 | 679 | friend class std::default_delete<Packet>; |
c23c8659 ML |
680 | }; |
681 | ||
07443fd2 | 682 | /** Abstract base class for datafeed packet payloads */ |
c23c8659 ML |
683 | class SR_API PacketPayload |
684 | { | |
685 | protected: | |
686 | PacketPayload(); | |
687 | virtual ~PacketPayload() = 0; | |
67b82fc9 | 688 | private: |
b6ab954d | 689 | virtual shared_ptr<PacketPayload> share_owned_by(shared_ptr<Packet> parent) = 0; |
21d1bec6 | 690 | |
c23c8659 ML |
691 | friend class Packet; |
692 | friend class Output; | |
f17b4546 | 693 | friend class std::default_delete<PacketPayload>; |
c23c8659 ML |
694 | }; |
695 | ||
2928f47d | 696 | /** Payload of a datafeed header packet */ |
4cd883a7 | 697 | class SR_API Header : |
d5d7b09e | 698 | public ParentOwned<Header, Packet>, |
4cd883a7 | 699 | public PacketPayload |
2928f47d ML |
700 | { |
701 | public: | |
b6f411ac | 702 | /* Feed version number. */ |
15bebf57 | 703 | int feed_version() const; |
b6f411ac | 704 | /* Start time of this session. */ |
15bebf57 | 705 | Glib::TimeVal start_time() const; |
21d1bec6 | 706 | private: |
6c11b496 | 707 | explicit Header(const struct sr_datafeed_header *structure); |
2928f47d | 708 | ~Header(); |
b6ab954d | 709 | shared_ptr<PacketPayload> share_owned_by(shared_ptr<Packet> parent); |
d5d7b09e DE |
710 | |
711 | const struct sr_datafeed_header *_structure; | |
712 | ||
2928f47d ML |
713 | friend class Packet; |
714 | }; | |
715 | ||
716 | /** Payload of a datafeed metadata packet */ | |
4cd883a7 | 717 | class SR_API Meta : |
d5d7b09e | 718 | public ParentOwned<Meta, Packet>, |
4cd883a7 | 719 | public PacketPayload |
2928f47d ML |
720 | { |
721 | public: | |
b6f411ac | 722 | /* Mapping of (ConfigKey, value) pairs. */ |
15bebf57 | 723 | map<const ConfigKey *, Glib::VariantBase> config() const; |
21d1bec6 | 724 | private: |
6c11b496 | 725 | explicit Meta(const struct sr_datafeed_meta *structure); |
2928f47d | 726 | ~Meta(); |
b6ab954d | 727 | shared_ptr<PacketPayload> share_owned_by(shared_ptr<Packet> parent); |
d5d7b09e DE |
728 | |
729 | const struct sr_datafeed_meta *_structure; | |
3b161085 | 730 | map<const ConfigKey *, Glib::VariantBase> _config; |
d5d7b09e | 731 | |
2928f47d ML |
732 | friend class Packet; |
733 | }; | |
734 | ||
07443fd2 | 735 | /** Payload of a datafeed packet with logic data */ |
4cd883a7 | 736 | class SR_API Logic : |
d5d7b09e | 737 | public ParentOwned<Logic, Packet>, |
4cd883a7 | 738 | public PacketPayload |
c23c8659 | 739 | { |
2928f47d ML |
740 | public: |
741 | /* Pointer to data. */ | |
3b161085 | 742 | void *data_pointer(); |
2928f47d | 743 | /* Data length in bytes. */ |
15bebf57 | 744 | size_t data_length() const; |
2928f47d | 745 | /* Size of each sample in bytes. */ |
15bebf57 | 746 | unsigned int unit_size() const; |
21d1bec6 | 747 | private: |
6c11b496 | 748 | explicit Logic(const struct sr_datafeed_logic *structure); |
c23c8659 | 749 | ~Logic(); |
b6ab954d | 750 | shared_ptr<PacketPayload> share_owned_by(shared_ptr<Packet> parent); |
d5d7b09e DE |
751 | |
752 | const struct sr_datafeed_logic *_structure; | |
753 | ||
c23c8659 ML |
754 | friend class Packet; |
755 | }; | |
756 | ||
07443fd2 | 757 | /** Payload of a datafeed packet with analog data */ |
dd13d47a | 758 | class SR_API Analog : |
d5d7b09e | 759 | public ParentOwned<Analog, Packet>, |
4cd883a7 | 760 | public PacketPayload |
c23c8659 ML |
761 | { |
762 | public: | |
2928f47d | 763 | /** Pointer to data. */ |
dd13d47a | 764 | void *data_pointer(); |
c23c8659 | 765 | /** Number of samples in this packet. */ |
15bebf57 | 766 | unsigned int num_samples() const; |
2928f47d | 767 | /** Channels for which this packet contains data. */ |
3b161085 | 768 | vector<shared_ptr<Channel> > channels(); |
c23c8659 | 769 | /** Measured quantity of the samples in this packet. */ |
15bebf57 | 770 | const Quantity *mq() const; |
c23c8659 | 771 | /** Unit of the samples in this packet. */ |
15bebf57 | 772 | const Unit *unit() const; |
c23c8659 | 773 | /** Measurement flags associated with the samples in this packet. */ |
15bebf57 | 774 | vector<const QuantityFlag *> mq_flags() const; |
21d1bec6 | 775 | private: |
6c11b496 | 776 | explicit Analog(const struct sr_datafeed_analog *structure); |
dd13d47a | 777 | ~Analog(); |
b6ab954d | 778 | shared_ptr<PacketPayload> share_owned_by(shared_ptr<Packet> parent); |
d5d7b09e DE |
779 | |
780 | const struct sr_datafeed_analog *_structure; | |
781 | ||
c23c8659 ML |
782 | friend class Packet; |
783 | }; | |
784 | ||
07443fd2 | 785 | /** An input format supported by the library */ |
c23c8659 | 786 | class SR_API InputFormat : |
d5d7b09e | 787 | public ParentOwned<InputFormat, Context> |
c23c8659 ML |
788 | { |
789 | public: | |
790 | /** Name of this input format. */ | |
15bebf57 | 791 | string name() const; |
c23c8659 | 792 | /** Description of this input format. */ |
15bebf57 | 793 | string description() const; |
c7bc82ff JH |
794 | /** A list of preferred file name extensions for this file format. |
795 | * @note This list is a recommendation only. */ | |
15bebf57 | 796 | vector<string> extensions() const; |
ca3291e3 | 797 | /** Options supported by this input format. */ |
3b161085 | 798 | map<string, shared_ptr<Option> > options(); |
ca3291e3 ML |
799 | /** Create an input using this input format. |
800 | * @param options Mapping of (option name, value) pairs. */ | |
bf03d635 DE |
801 | shared_ptr<Input> create_input(const map<string, Glib::VariantBase> |
802 | &options = map<string, Glib::VariantBase>()); | |
21d1bec6 | 803 | private: |
6c11b496 | 804 | explicit InputFormat(const struct sr_input_module *structure); |
c23c8659 | 805 | ~InputFormat(); |
d5d7b09e DE |
806 | |
807 | const struct sr_input_module *_structure; | |
808 | ||
c23c8659 | 809 | friend class Context; |
ca3291e3 | 810 | friend class InputDevice; |
f17b4546 | 811 | friend class std::default_delete<InputFormat>; |
c23c8659 ML |
812 | }; |
813 | ||
ca3291e3 | 814 | /** An input instance (an input format applied to a file or stream) */ |
d5d7b09e | 815 | class SR_API Input : public UserOwned<Input> |
c23c8659 ML |
816 | { |
817 | public: | |
ca3291e3 | 818 | /** Virtual device associated with this input. */ |
3b161085 | 819 | shared_ptr<InputDevice> device(); |
ca3291e3 | 820 | /** Send next stream data. |
2b51d48b ML |
821 | * @param data Next stream data. |
822 | * @param length Length of data. */ | |
823 | void send(void *data, size_t length); | |
9c51e8ec ML |
824 | /** Signal end of input data. */ |
825 | void end(); | |
21d1bec6 | 826 | private: |
ca3291e3 ML |
827 | Input(shared_ptr<Context> context, const struct sr_input *structure); |
828 | ~Input(); | |
d5d7b09e | 829 | const struct sr_input *_structure; |
3b161085 | 830 | shared_ptr<Context> _context; |
f17b4546 | 831 | unique_ptr<InputDevice> _device; |
a98729a7 | 832 | |
ca3291e3 | 833 | friend class Context; |
c23c8659 | 834 | friend class InputFormat; |
a98729a7 | 835 | friend class std::default_delete<Input>; |
c23c8659 ML |
836 | }; |
837 | ||
ca3291e3 | 838 | /** A virtual device associated with an input */ |
6e5240f4 | 839 | class SR_API InputDevice : |
d5d7b09e | 840 | public ParentOwned<InputDevice, Input>, |
6e5240f4 | 841 | public Device |
ca3291e3 | 842 | { |
21d1bec6 | 843 | private: |
ca3291e3 ML |
844 | InputDevice(shared_ptr<Input> input, struct sr_dev_inst *sdi); |
845 | ~InputDevice(); | |
d01d2314 | 846 | shared_ptr<Device> get_shared_from_this(); |
3b161085 | 847 | shared_ptr<Input> _input; |
ca3291e3 | 848 | friend class Input; |
f17b4546 | 849 | friend class std::default_delete<InputDevice>; |
ca3291e3 ML |
850 | }; |
851 | ||
58aa1f83 | 852 | /** An option used by an output format */ |
d5d7b09e | 853 | class SR_API Option : public UserOwned<Option> |
58aa1f83 ML |
854 | { |
855 | public: | |
856 | /** Short name of this option suitable for command line usage. */ | |
15bebf57 | 857 | string id() const; |
58aa1f83 | 858 | /** Short name of this option suitable for GUI usage. */ |
15bebf57 | 859 | string name() const; |
58aa1f83 | 860 | /** Description of this option in a sentence. */ |
15bebf57 | 861 | string description() const; |
58aa1f83 | 862 | /** Default value for this option. */ |
15bebf57 | 863 | Glib::VariantBase default_value() const; |
58aa1f83 | 864 | /** Possible values for this option, if a limited set. */ |
15bebf57 | 865 | vector<Glib::VariantBase> values() const; |
21d1bec6 | 866 | private: |
58aa1f83 | 867 | Option(const struct sr_option *structure, |
70d3b20b | 868 | shared_ptr<const struct sr_option *> structure_array); |
58aa1f83 | 869 | ~Option(); |
d5d7b09e | 870 | const struct sr_option *_structure; |
3b161085 | 871 | shared_ptr<const struct sr_option *> _structure_array; |
a98729a7 | 872 | |
43942280 | 873 | friend class InputFormat; |
58aa1f83 | 874 | friend class OutputFormat; |
a98729a7 | 875 | friend class std::default_delete<Option>; |
58aa1f83 ML |
876 | }; |
877 | ||
07443fd2 | 878 | /** An output format supported by the library */ |
c23c8659 | 879 | class SR_API OutputFormat : |
d5d7b09e | 880 | public ParentOwned<OutputFormat, Context> |
c23c8659 ML |
881 | { |
882 | public: | |
883 | /** Name of this output format. */ | |
15bebf57 | 884 | string name() const; |
c23c8659 | 885 | /** Description of this output format. */ |
15bebf57 | 886 | string description() const; |
8a174d23 JH |
887 | /** A list of preferred file name extensions for this file format. |
888 | * @note This list is a recommendation only. */ | |
15bebf57 | 889 | vector<string> extensions() const; |
58aa1f83 | 890 | /** Options supported by this output format. */ |
3b161085 | 891 | map<string, shared_ptr<Option> > options(); |
b6f411ac ML |
892 | /** Create an output using this format. |
893 | * @param device Device to output for. | |
894 | * @param options Mapping of (option name, value) pairs. */ | |
bf03d635 DE |
895 | shared_ptr<Output> create_output(shared_ptr<Device> device, |
896 | const map<string, Glib::VariantBase> &options = map<string, Glib::VariantBase>()); | |
81b3ce37 SA |
897 | /** Create an output using this format. |
898 | * @param filename Name of destination file. | |
899 | * @param device Device to output for. | |
900 | * @param options Mapping of (option name, value) pairs. */ | |
901 | shared_ptr<Output> create_output(string filename, | |
902 | shared_ptr<Device> device, | |
bf03d635 | 903 | const map<string, Glib::VariantBase> &options = map<string, Glib::VariantBase>()); |
3cd4b381 SA |
904 | /** |
905 | * Checks whether a given flag is set. | |
906 | * @param flag Flag to check | |
907 | * @return true if flag is set for this module | |
908 | * @see sr_output_flags | |
909 | */ | |
15bebf57 | 910 | bool test_flag(const OutputFlag *flag) const; |
21d1bec6 | 911 | private: |
6c11b496 | 912 | explicit OutputFormat(const struct sr_output_module *structure); |
c23c8659 | 913 | ~OutputFormat(); |
d5d7b09e DE |
914 | |
915 | const struct sr_output_module *_structure; | |
916 | ||
c23c8659 ML |
917 | friend class Context; |
918 | friend class Output; | |
f17b4546 | 919 | friend class std::default_delete<OutputFormat>; |
c23c8659 ML |
920 | }; |
921 | ||
07443fd2 | 922 | /** An output instance (an output format applied to a device) */ |
d5d7b09e | 923 | class SR_API Output : public UserOwned<Output> |
c23c8659 ML |
924 | { |
925 | public: | |
b6f411ac ML |
926 | /** Update output with data from the given packet. |
927 | * @param packet Packet to handle. */ | |
c23c8659 | 928 | string receive(shared_ptr<Packet> packet); |
21d1bec6 | 929 | private: |
c23c8659 ML |
930 | Output(shared_ptr<OutputFormat> format, shared_ptr<Device> device); |
931 | Output(shared_ptr<OutputFormat> format, | |
d370545d | 932 | shared_ptr<Device> device, const map<string, Glib::VariantBase> &options); |
81b3ce37 | 933 | Output(string filename, shared_ptr<OutputFormat> format, |
d370545d | 934 | shared_ptr<Device> device, const map<string, Glib::VariantBase> &options); |
c23c8659 | 935 | ~Output(); |
d5d7b09e DE |
936 | |
937 | const struct sr_output *_structure; | |
3b161085 ML |
938 | const shared_ptr<OutputFormat> _format; |
939 | const shared_ptr<Device> _device; | |
940 | const map<string, Glib::VariantBase> _options; | |
d5d7b09e | 941 | |
c23c8659 | 942 | friend class OutputFormat; |
a98729a7 | 943 | friend class std::default_delete<Output>; |
c23c8659 ML |
944 | }; |
945 | ||
946 | /** Base class for objects which wrap an enumeration value from libsigrok */ | |
9d229ecb | 947 | template <class Class, typename Enum> class SR_API EnumValue |
c23c8659 ML |
948 | { |
949 | public: | |
9d229ecb ML |
950 | /** The integer constant associated with this value. */ |
951 | int id() const | |
952 | { | |
953 | return static_cast<int>(_id); | |
954 | } | |
c23c8659 | 955 | /** The name associated with this value. */ |
9d229ecb ML |
956 | string name() const |
957 | { | |
958 | return _name; | |
959 | } | |
960 | /** Get value associated with a given integer constant. */ | |
961 | static const Class *get(int id) | |
962 | { | |
15bebf57 DE |
963 | const auto pos = _values.find(static_cast<Enum>(id)); |
964 | if (pos == _values.end()) | |
9d229ecb | 965 | throw Error(SR_ERR_ARG); |
15bebf57 | 966 | return pos->second; |
9d229ecb ML |
967 | } |
968 | /** Get possible values. */ | |
969 | static std::vector<const Class *> values() | |
970 | { | |
971 | std::vector<const Class *> result; | |
972 | for (auto entry : _values) | |
973 | result.push_back(entry.second); | |
974 | return result; | |
975 | } | |
c23c8659 | 976 | protected: |
9d229ecb ML |
977 | EnumValue(Enum id, const char name[]) : _id(id), _name(name) |
978 | { | |
979 | } | |
980 | ~EnumValue() | |
981 | { | |
982 | } | |
21d1bec6 | 983 | private: |
9d229ecb ML |
984 | static const std::map<const Enum, const Class * const> _values; |
985 | const Enum _id; | |
3b161085 | 986 | const string _name; |
c23c8659 ML |
987 | }; |
988 | ||
8b2a1843 | 989 | #include <libsigrokcxx/enums.hpp> |
c23c8659 ML |
990 | |
991 | } | |
992 | ||
1b40fdb8 | 993 | #endif |