ICU 78.2 78.2

icuplug.h
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1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 ******************************************************************************
5 *
6 * Copyright (C) 2009-2015, International Business Machines
7 * Corporation and others. All Rights Reserved.
8 *
9 ******************************************************************************
10 *
11 * FILE NAME : icuplug.h
12 *
13 * Date Name Description
14 * 10/29/2009 sl New.
15 ******************************************************************************
16 */
17
107 #ifndef ICUPLUG_H
108 #define ICUPLUG_H
109
110 #include "unicode/utypes.h"
111
112
113 #if UCONFIG_ENABLE_PLUGINS || defined(U_IN_DOXYGEN)
114
115
116
117 /* === Basic types === */
118
119 #ifndef U_HIDE_INTERNAL_API
120 struct UPlugData;
127 typedef struct UPlugData UPlugData;
128
136 #define UPLUG_TOKEN 0x54762486
137
142 #define UPLUG_NAME_MAX 100
143
144
151 typedef uint32_t UPlugTokenReturn;
152
157 typedef enum {
158 UPLUG_REASON_QUERY = 0,
159 UPLUG_REASON_LOAD = 1,
160 UPLUG_REASON_UNLOAD = 2,
165 UPLUG_REASON_COUNT
166 } UPlugReason;
167
168
176 typedef enum {
177 UPLUG_LEVEL_INVALID = 0,
178 UPLUG_LEVEL_UNKNOWN = 1,
179 UPLUG_LEVEL_LOW = 2,
180 UPLUG_LEVEL_HIGH = 3,
185 UPLUG_LEVEL_COUNT
186 } UPlugLevel;
187
199 typedef UPlugTokenReturn (U_EXPORT2 UPlugEntrypoint) (
200 UPlugData *plug,
201 UPlugReason reason,
202 UErrorCode *status);
203
204 /* === Needed for Implementing === */
205
214 U_CAPI void U_EXPORT2
215 uplug_setPlugNoUnload(UPlugData *plug, UBool dontUnload);
216
223 U_CAPI void U_EXPORT2
224 uplug_setPlugLevel(UPlugData *plug, UPlugLevel level);
225
232 U_CAPI UPlugLevel U_EXPORT2
233 uplug_getPlugLevel(UPlugData *plug);
234
242 U_CAPI UPlugLevel U_EXPORT2
243 uplug_getCurrentLevel(void);
244
245
251 U_CAPI UErrorCode U_EXPORT2
252 uplug_getPlugLoadStatus(UPlugData *plug);
253
260 U_CAPI void U_EXPORT2
261 uplug_setPlugName(UPlugData *plug, const char *name);
262
269 U_CAPI const char * U_EXPORT2
270 uplug_getPlugName(UPlugData *plug);
271
278 U_CAPI const char * U_EXPORT2
279 uplug_getSymbolName(UPlugData *plug);
280
288 U_CAPI const char * U_EXPORT2
289 uplug_getLibraryName(UPlugData *plug, UErrorCode *status);
290
298 U_CAPI void * U_EXPORT2
299 uplug_getLibrary(UPlugData *plug);
300
307 U_CAPI void * U_EXPORT2
308 uplug_getContext(UPlugData *plug);
309
316 U_CAPI void U_EXPORT2
317 uplug_setContext(UPlugData *plug, void *context);
318
319
327 U_CAPI const char * U_EXPORT2
328 uplug_getConfiguration(UPlugData *plug);
329
345 U_CAPI UPlugData* U_EXPORT2
346 uplug_nextPlug(UPlugData *prior);
347
360 U_CAPI UPlugData* U_EXPORT2
361 uplug_loadPlugFromEntrypoint(UPlugEntrypoint *entrypoint, const char *config, UErrorCode *status);
362
363
374 U_CAPI UPlugData* U_EXPORT2
375 uplug_loadPlugFromLibrary(const char *libName, const char *sym, const char *config, UErrorCode *status);
376
384 U_CAPI void U_EXPORT2
385 uplug_removePlug(UPlugData *plug, UErrorCode *status);
386 #endif /* U_HIDE_INTERNAL_API */
387
388 #endif /* UCONFIG_ENABLE_PLUGINS */
389
390 #endif /* _ICUPLUG */
391
UPlugTokenReturn
uint32_t UPlugTokenReturn
Return value from a plugin entrypoint.
Definition: icuplug.h:151
uplug_getLibrary
U_CAPI void * uplug_getLibrary(UPlugData *plug)
Return the library used for this plugin, if known.
UPlugReason
UPlugReason
Reason code for the entrypoint's call.
Definition: icuplug.h:157
UPLUG_REASON_COUNT
@ UPLUG_REASON_COUNT
Number of known reasons.
Definition: icuplug.h:165
UPLUG_REASON_LOAD
@ UPLUG_REASON_LOAD
The plugin is being loaded.
Definition: icuplug.h:159
UPLUG_REASON_UNLOAD
@ UPLUG_REASON_UNLOAD
The plugin is being unloaded.
Definition: icuplug.h:160
UPLUG_REASON_QUERY
@ UPLUG_REASON_QUERY
The plugin is being queried for info.
Definition: icuplug.h:158
uplug_removePlug
U_CAPI void uplug_removePlug(UPlugData *plug, UErrorCode *status)
Remove a plugin.
uplug_setContext
U_CAPI void uplug_setContext(UPlugData *plug, void *context)
Set the plugin-specific context data.
UPlugEntrypoint
UPlugTokenReturn() UPlugEntrypoint(UPlugData *plug, UPlugReason reason, UErrorCode *status)
Entrypoint for an ICU plugin.
Definition: icuplug.h:199
uplug_getConfiguration
U_CAPI const char * uplug_getConfiguration(UPlugData *plug)
Get the configuration string, if available.
UPlugData
struct UPlugData UPlugData
Typedef for opaque structure passed to/from a plugin.
Definition: icuplug.h:127
uplug_setPlugName
U_CAPI void uplug_setPlugName(UPlugData *plug, const char *name)
Set the human-readable name of this plugin.
uplug_getLibraryName
U_CAPI const char * uplug_getLibraryName(UPlugData *plug, UErrorCode *status)
Return the library name for this plugin, if known.
uplug_setPlugLevel
U_CAPI void uplug_setPlugLevel(UPlugData *plug, UPlugLevel level)
Set the level of this plugin.
uplug_loadPlugFromEntrypoint
U_CAPI UPlugData * uplug_loadPlugFromEntrypoint(UPlugEntrypoint *entrypoint, const char *config, UErrorCode *status)
Inject a plugin as if it were loaded from a library.
uplug_nextPlug
U_CAPI UPlugData * uplug_nextPlug(UPlugData *prior)
Return all currently installed plugins, from newest to oldest Usage Example:
uplug_getPlugName
U_CAPI const char * uplug_getPlugName(UPlugData *plug)
Get the human-readable name of this plugin.
uplug_getPlugLevel
U_CAPI UPlugLevel uplug_getPlugLevel(UPlugData *plug)
Get the level of this plugin.
uplug_setPlugNoUnload
U_CAPI void uplug_setPlugNoUnload(UPlugData *plug, UBool dontUnload)
Request that this plugin not be unloaded at cleanup time.
uplug_getContext
U_CAPI void * uplug_getContext(UPlugData *plug)
Return the plugin-specific context data.
uplug_getPlugLoadStatus
U_CAPI UErrorCode uplug_getPlugLoadStatus(UPlugData *plug)
Get plug load status.
uplug_getCurrentLevel
U_CAPI UPlugLevel uplug_getCurrentLevel(void)
Get the lowest level of plug which can currently load.
uplug_getSymbolName
U_CAPI const char * uplug_getSymbolName(UPlugData *plug)
Return the symbol name for this plugin, if known.
UPlugLevel
UPlugLevel
Level of plugin loading INITIAL: UNKNOWN QUERY: INVALID -> { LOW | HIGH } ERR -> INVALID.
Definition: icuplug.h:176
UPLUG_LEVEL_INVALID
@ UPLUG_LEVEL_INVALID
The plugin is invalid, hasn't called uplug_setLevel, or can't load.
Definition: icuplug.h:177
UPLUG_LEVEL_COUNT
@ UPLUG_LEVEL_COUNT
Number of known levels.
Definition: icuplug.h:185
UPLUG_LEVEL_UNKNOWN
@ UPLUG_LEVEL_UNKNOWN
The plugin is waiting to be installed.
Definition: icuplug.h:178
UPLUG_LEVEL_HIGH
@ UPLUG_LEVEL_HIGH
The plugin can run at any time.
Definition: icuplug.h:180
UPLUG_LEVEL_LOW
@ UPLUG_LEVEL_LOW
The plugin must be called before u_init completes.
Definition: icuplug.h:179
uplug_loadPlugFromLibrary
U_CAPI UPlugData * uplug_loadPlugFromLibrary(const char *libName, const char *sym, const char *config, UErrorCode *status)
Inject a plugin from a library, as if the information came from a config file.
UBool
int8_t UBool
The ICU boolean type, a signed-byte integer.
Definition: umachine.h:269
U_CAPI
#define U_CAPI
This is used to declare a function as a public ICU C API.
Definition: umachine.h:110
utypes.h
Basic definitions for ICU, for both C and C++ APIs.
UErrorCode
UErrorCode
Standard ICU4C error code type, a substitute for exceptions.
Definition: utypes.h:509