Systemd/src/libsystemd/sd-bus/bus-type.c
Lennart Poettering dccca82b1a log: minimize includes in log.h
log.h really should only include the bare minimum of other headers, as
it is really pulled into pretty much everything else and already in
itself one of the most basic pieces of code we have.

Let's hence drop inclusion of:

1. sd-id128.h because it's entirely unneeded in current log.h
2. errno.h, dito.
3. sys/signalfd.h which we can replace by a simple struct forward
   declaration
4. process-util.h which was needed for getpid_cached() which we now hide
   in a funciton log_emergency_level() instead, which nicely abstracts
   the details away.
5. sys/socket.h which was needed for struct iovec, but a simple struct
   forward declaration suffices for that too.

Ultimately this actually makes our source tree larger (since users of
the functionality above must now include it themselves, log.h won't do
that for them), but I think it helps to untangle our web of includes a
tiny bit.

(Background: I'd like to isolate the generic bits of src/basic/ enough
so that we can do a git submodule import into casync for it)
2018-01-11 14:44:31 +01:00

182 lines
5.1 KiB
C

/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2013 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <errno.h>
#include "sd-bus.h"
#include "bus-type.h"
bool bus_type_is_valid(char c) {
static const char valid[] = {
SD_BUS_TYPE_BYTE,
SD_BUS_TYPE_BOOLEAN,
SD_BUS_TYPE_INT16,
SD_BUS_TYPE_UINT16,
SD_BUS_TYPE_INT32,
SD_BUS_TYPE_UINT32,
SD_BUS_TYPE_INT64,
SD_BUS_TYPE_UINT64,
SD_BUS_TYPE_DOUBLE,
SD_BUS_TYPE_STRING,
SD_BUS_TYPE_OBJECT_PATH,
SD_BUS_TYPE_SIGNATURE,
SD_BUS_TYPE_ARRAY,
SD_BUS_TYPE_VARIANT,
SD_BUS_TYPE_STRUCT,
SD_BUS_TYPE_DICT_ENTRY,
SD_BUS_TYPE_UNIX_FD
};
return !!memchr(valid, c, sizeof(valid));
}
bool bus_type_is_valid_in_signature(char c) {
static const char valid[] = {
SD_BUS_TYPE_BYTE,
SD_BUS_TYPE_BOOLEAN,
SD_BUS_TYPE_INT16,
SD_BUS_TYPE_UINT16,
SD_BUS_TYPE_INT32,
SD_BUS_TYPE_UINT32,
SD_BUS_TYPE_INT64,
SD_BUS_TYPE_UINT64,
SD_BUS_TYPE_DOUBLE,
SD_BUS_TYPE_STRING,
SD_BUS_TYPE_OBJECT_PATH,
SD_BUS_TYPE_SIGNATURE,
SD_BUS_TYPE_ARRAY,
SD_BUS_TYPE_VARIANT,
SD_BUS_TYPE_STRUCT_BEGIN,
SD_BUS_TYPE_STRUCT_END,
SD_BUS_TYPE_DICT_ENTRY_BEGIN,
SD_BUS_TYPE_DICT_ENTRY_END,
SD_BUS_TYPE_UNIX_FD
};
return !!memchr(valid, c, sizeof(valid));
}
bool bus_type_is_basic(char c) {
static const char valid[] = {
SD_BUS_TYPE_BYTE,
SD_BUS_TYPE_BOOLEAN,
SD_BUS_TYPE_INT16,
SD_BUS_TYPE_UINT16,
SD_BUS_TYPE_INT32,
SD_BUS_TYPE_UINT32,
SD_BUS_TYPE_INT64,
SD_BUS_TYPE_UINT64,
SD_BUS_TYPE_DOUBLE,
SD_BUS_TYPE_STRING,
SD_BUS_TYPE_OBJECT_PATH,
SD_BUS_TYPE_SIGNATURE,
SD_BUS_TYPE_UNIX_FD
};
return !!memchr(valid, c, sizeof(valid));
}
bool bus_type_is_trivial(char c) {
static const char valid[] = {
SD_BUS_TYPE_BYTE,
SD_BUS_TYPE_BOOLEAN,
SD_BUS_TYPE_INT16,
SD_BUS_TYPE_UINT16,
SD_BUS_TYPE_INT32,
SD_BUS_TYPE_UINT32,
SD_BUS_TYPE_INT64,
SD_BUS_TYPE_UINT64,
SD_BUS_TYPE_DOUBLE
};
return !!memchr(valid, c, sizeof(valid));
}
bool bus_type_is_container(char c) {
static const char valid[] = {
SD_BUS_TYPE_ARRAY,
SD_BUS_TYPE_VARIANT,
SD_BUS_TYPE_STRUCT,
SD_BUS_TYPE_DICT_ENTRY
};
return !!memchr(valid, c, sizeof(valid));
}
int bus_type_get_alignment(char c) {
switch (c) {
case SD_BUS_TYPE_BYTE:
case SD_BUS_TYPE_SIGNATURE:
case SD_BUS_TYPE_VARIANT:
return 1;
case SD_BUS_TYPE_INT16:
case SD_BUS_TYPE_UINT16:
return 2;
case SD_BUS_TYPE_BOOLEAN:
case SD_BUS_TYPE_INT32:
case SD_BUS_TYPE_UINT32:
case SD_BUS_TYPE_STRING:
case SD_BUS_TYPE_OBJECT_PATH:
case SD_BUS_TYPE_ARRAY:
case SD_BUS_TYPE_UNIX_FD:
return 4;
case SD_BUS_TYPE_INT64:
case SD_BUS_TYPE_UINT64:
case SD_BUS_TYPE_DOUBLE:
case SD_BUS_TYPE_STRUCT:
case SD_BUS_TYPE_STRUCT_BEGIN:
case SD_BUS_TYPE_DICT_ENTRY:
case SD_BUS_TYPE_DICT_ENTRY_BEGIN:
return 8;
}
return -EINVAL;
}
int bus_type_get_size(char c) {
switch (c) {
case SD_BUS_TYPE_BYTE:
return 1;
case SD_BUS_TYPE_INT16:
case SD_BUS_TYPE_UINT16:
return 2;
case SD_BUS_TYPE_BOOLEAN:
case SD_BUS_TYPE_INT32:
case SD_BUS_TYPE_UINT32:
case SD_BUS_TYPE_UNIX_FD:
return 4;
case SD_BUS_TYPE_INT64:
case SD_BUS_TYPE_UINT64:
case SD_BUS_TYPE_DOUBLE:
return 8;
}
return -EINVAL;
}