df98a87ba3
This way we have four kinds of properties: a) those which are constant as long as an object exists b) those which can change and PropertiesChange messages with contents are generated c) those which can change and where the PropertesChange merely includes invalidation d) those which can change but for which no events are generated Clients (through code generators run on the introspection XML) can thus aggressively cache a, b, c, with only d excluded.
139 lines
5.7 KiB
C
139 lines
5.7 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#ifndef foosdbusvtablehfoo
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#define foosdbusvtablehfoo
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/***
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This file is part of systemd.
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Copyright 2013 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "_sd-common.h"
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_SD_BEGIN_DECLARATIONS;
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typedef struct sd_bus_vtable sd_bus_vtable;
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#include "sd-bus.h"
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enum {
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_SD_BUS_VTABLE_START = '<',
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_SD_BUS_VTABLE_END = '>',
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_SD_BUS_VTABLE_METHOD = 'M',
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_SD_BUS_VTABLE_SIGNAL = 'S',
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_SD_BUS_VTABLE_PROPERTY = 'P',
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_SD_BUS_VTABLE_WRITABLE_PROPERTY = 'W',
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};
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enum {
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SD_BUS_VTABLE_DEPRECATED = 1ULL << 0,
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SD_BUS_VTABLE_HIDDEN = 1ULL << 1,
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SD_BUS_VTABLE_UNPRIVILEGED = 1ULL << 2,
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SD_BUS_VTABLE_METHOD_NO_REPLY = 1ULL << 3,
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SD_BUS_VTABLE_PROPERTY_CONST = 1ULL << 4,
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SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE = 1ULL << 5,
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SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION = 1ULL << 6,
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_SD_BUS_VTABLE_CAPABILITY_MASK = 0xFFFFULL << 40
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};
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#define SD_BUS_VTABLE_CAPABILITY(x) ((uint64_t) (((x)+1) & 0xFFFF) << 40)
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struct sd_bus_vtable {
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/* Please do not initialize this structure directly, use the
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* macros below instead */
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uint8_t type:8;
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uint64_t flags:56;
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union {
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struct {
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size_t element_size;
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} start;
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struct {
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const char *member;
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const char *signature;
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const char *result;
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sd_bus_message_handler_t handler;
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} method;
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struct {
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const char *member;
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const char *signature;
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} signal;
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struct {
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const char *member;
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const char *signature;
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sd_bus_property_get_t get;
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sd_bus_property_set_t set;
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size_t offset;
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} property;
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} x;
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};
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#define SD_BUS_VTABLE_START(_flags) \
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{ \
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.type = _SD_BUS_VTABLE_START, \
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.flags = _flags, \
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.x.start.element_size = sizeof(sd_bus_vtable), \
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}
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#define SD_BUS_METHOD(_member, _signature, _result, _handler, _flags) \
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{ \
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.type = _SD_BUS_VTABLE_METHOD, \
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.flags = _flags, \
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.x.method.member = _member, \
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.x.method.signature = _signature, \
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.x.method.result = _result, \
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.x.method.handler = _handler, \
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}
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#define SD_BUS_SIGNAL(_member, _signature, _flags) \
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{ \
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.type = _SD_BUS_VTABLE_SIGNAL, \
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.flags = _flags, \
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.x.signal.member = _member, \
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.x.signal.signature = _signature, \
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}
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#define SD_BUS_PROPERTY(_member, _signature, _get, _offset, _flags) \
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{ \
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.type = _SD_BUS_VTABLE_PROPERTY, \
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.flags = _flags, \
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.x.property.member = _member, \
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.x.property.signature = _signature, \
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.x.property.get = _get, \
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.x.property.offset = _offset, \
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}
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#define SD_BUS_WRITABLE_PROPERTY(_member, _signature, _get, _set, _offset, _flags) \
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{ \
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.type = _SD_BUS_VTABLE_WRITABLE_PROPERTY, \
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.flags = _flags, \
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.x.property.member = _member, \
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.x.property.signature = _signature, \
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.x.property.get = _get, \
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.x.property.set = _set, \
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.x.property.offset = _offset, \
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}
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#define SD_BUS_VTABLE_END \
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{ \
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.type = _SD_BUS_VTABLE_END, \
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}
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_SD_END_DECLARATIONS;
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#endif
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