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Diffstat (limited to '')
| -rw-r--r-- | src/shared/bus-get-properties.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/shared/bus-get-properties.h b/src/shared/bus-get-properties.h new file mode 100644 index 0000000..4c35126 --- /dev/null +++ b/src/shared/bus-get-properties.h @@ -0,0 +1,101 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include "sd-bus.h" + +#include "macro.h" + +int bus_property_get_bool(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); +int bus_property_set_bool(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *value, void *userdata, sd_bus_error *error); +int bus_property_get_tristate(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); +int bus_property_get_id128(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); + +#define bus_property_get_usec ((sd_bus_property_get_t) NULL) +#define bus_property_set_usec ((sd_bus_property_set_t) NULL) + +assert_cc(sizeof(int) == sizeof(int32_t)); +#define bus_property_get_int ((sd_bus_property_get_t) NULL) + +assert_cc(sizeof(unsigned) == sizeof(uint32_t)); +#define bus_property_get_unsigned ((sd_bus_property_get_t) NULL) + +/* On 64-bit machines we can use the default serializer for size_t and + * friends, otherwise we need to cast this manually */ +#if __SIZEOF_SIZE_T__ == 8 +#define bus_property_get_size ((sd_bus_property_get_t) NULL) +#else +int bus_property_get_size(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); +#endif + +#if __SIZEOF_LONG__ == 8 +#define bus_property_get_long ((sd_bus_property_get_t) NULL) +#define bus_property_get_ulong ((sd_bus_property_get_t) NULL) +#else +int bus_property_get_long(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); +int bus_property_get_ulong(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); +#endif + +/* uid_t and friends on Linux 32 bit. This means we can just use the + * default serializer for 32-bit unsigned, for serializing it, and map + * it to NULL here */ +assert_cc(sizeof(uid_t) == sizeof(uint32_t)); +#define bus_property_get_uid ((sd_bus_property_get_t) NULL) + +assert_cc(sizeof(gid_t) == sizeof(uint32_t)); +#define bus_property_get_gid ((sd_bus_property_get_t) NULL) + +assert_cc(sizeof(pid_t) == sizeof(uint32_t)); +#define bus_property_get_pid ((sd_bus_property_get_t) NULL) + +assert_cc(sizeof(mode_t) == sizeof(uint32_t)); +#define bus_property_get_mode ((sd_bus_property_get_t) NULL) + +int bus_property_get_rlimit(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error); + +#define BUS_DEFINE_PROPERTY_GET_GLOBAL(function, bus_type, val) \ + int function(sd_bus *bus, \ + const char *path, \ + const char *interface, \ + const char *property, \ + sd_bus_message *reply, \ + void *userdata, \ + sd_bus_error *error) { \ + \ + assert(bus); \ + assert(reply); \ + \ + return sd_bus_message_append(reply, bus_type, val); \ + } + +#define BUS_DEFINE_PROPERTY_GET2(function, bus_type, data_type, get1, get2) \ + int function(sd_bus *bus, \ + const char *path, \ + const char *interface, \ + const char *property, \ + sd_bus_message *reply, \ + void *userdata, \ + sd_bus_error *error) { \ + \ + data_type *data = ASSERT_PTR(userdata); \ + \ + assert(bus); \ + assert(reply); \ + \ + return sd_bus_message_append(reply, bus_type, \ + get2(get1(data))); \ + } + +#define ident(x) (x) +#define BUS_DEFINE_PROPERTY_GET(function, bus_type, data_type, get1) \ + BUS_DEFINE_PROPERTY_GET2(function, bus_type, data_type, get1, ident) + +#define ref(x) (*(x)) +#define BUS_DEFINE_PROPERTY_GET_REF(function, bus_type, data_type, get) \ + BUS_DEFINE_PROPERTY_GET2(function, bus_type, data_type, ref, get) + +#define BUS_DEFINE_PROPERTY_GET_ENUM(function, name, type) \ + BUS_DEFINE_PROPERTY_GET_REF(function, "s", type, name##_to_string) + +#define BUS_PROPERTY_DUAL_TIMESTAMP(name, offset, flags) \ + SD_BUS_PROPERTY(name, "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, realtime), (flags)), \ + SD_BUS_PROPERTY(name "Monotonic", "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, monotonic), (flags)) |