mirror of
https://github.com/morgan9e/systemd
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87fbd33372
- Remove unused includes - Add common false positive headers to misc-include-cleaner.IgnoreHeaders - Add IWYU pragma keep for uncommon false positive headers
96 lines
3.1 KiB
C
96 lines
3.1 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include "basic-forward.h"
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#include "cgroup-util.h"
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#include "stdio-util.h" /* IWYU pragma: keep */
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assert_cc(sizeof(pid_t) == sizeof(int32_t));
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#define PID_PRI PRIi32
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#define PID_FMT "%" PID_PRI
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assert_cc(sizeof(uid_t) == sizeof(uint32_t));
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#define UID_FMT "%" PRIu32
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assert_cc(sizeof(gid_t) == sizeof(uint32_t));
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#define GID_FMT "%" PRIu32
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/* Note: the lifetime of the compound literal is the immediately surrounding block,
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* see C11 §6.5.2.5, and
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* https://stackoverflow.com/questions/34880638/compound-literal-lifetime-and-if-blocks */
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#define FORMAT_UID(uid) \
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snprintf_ok((char[DECIMAL_STR_MAX(uid_t)]){}, DECIMAL_STR_MAX(uid_t), UID_FMT, uid)
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#define FORMAT_GID(gid) \
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snprintf_ok((char[DECIMAL_STR_MAX(gid_t)]){}, DECIMAL_STR_MAX(gid_t), GID_FMT, gid)
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#if SIZEOF_TIME_T == 8
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# define PRI_TIME PRIi64
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#elif SIZEOF_TIME_T == 4
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# define PRI_TIME "li"
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#else
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# error Unknown time_t size
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#endif
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#if SIZEOF_TIMEX_MEMBER == 8
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# define PRI_TIMEX PRIi64
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#elif SIZEOF_TIMEX_MEMBER == 4
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# define PRI_TIMEX "li"
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#else
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# error Unknown timex member size
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#endif
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#ifdef __GLIBC__
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# if SIZEOF_RLIM_T == 8
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# define RLIM_FMT "%" PRIu64
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# elif SIZEOF_RLIM_T == 4
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# define RLIM_FMT "%" PRIu32
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# else
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# error Unknown rlim_t size
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# endif
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#else
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/* Assume musl, and it unconditionally uses unsigned long long. */
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assert_cc(SIZEOF_RLIM_T == 8);
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# define RLIM_FMT "%llu"
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#endif
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#if SIZEOF_DEV_T == 8
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# define DEV_FMT "%" PRIu64
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#elif SIZEOF_DEV_T == 4
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# define DEV_FMT "%" PRIu32
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#else
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# error Unknown dev_t size
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#endif
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#if SIZEOF_INO_T == 8
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# define INO_FMT "%" PRIu64
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#elif SIZEOF_INO_T == 4
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# define INO_FMT "%" PRIu32
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#else
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# error Unknown ino_t size
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#endif
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typedef enum {
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FORMAT_BYTES_USE_IEC = 1 << 0, /* use base 1024 rather than 1000 */
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FORMAT_BYTES_BELOW_POINT = 1 << 1, /* show one digit after the point, if non-zero */
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FORMAT_BYTES_ALWAYS_POINT = 1 << 2, /* show one digit after the point, always */
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FORMAT_BYTES_TRAILING_B = 1 << 3, /* suffix the expression with a "B" for "bytes" */
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} FormatBytesFlag;
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#define FORMAT_BYTES_MAX 16U
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char* format_bytes_full(char *buf, size_t l, uint64_t t, FormatBytesFlag flag) _warn_unused_result_;
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_warn_unused_result_
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static inline char* format_bytes(char *buf, size_t l, uint64_t t) {
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return format_bytes_full(buf, l, t, FORMAT_BYTES_USE_IEC | FORMAT_BYTES_BELOW_POINT | FORMAT_BYTES_TRAILING_B);
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}
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/* Note: the lifetime of the compound literal is the immediately surrounding block,
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* see C11 §6.5.2.5, and
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* https://stackoverflow.com/questions/34880638/compound-literal-lifetime-and-if-blocks */
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#define FORMAT_BYTES(t) format_bytes((char[FORMAT_BYTES_MAX]){}, FORMAT_BYTES_MAX, t)
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#define FORMAT_BYTES_FULL(t, flags) format_bytes_full((char[FORMAT_BYTES_MAX]){}, FORMAT_BYTES_MAX, t, flags)
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#define FORMAT_BYTES_WITH_POINT(t) format_bytes_full((char[FORMAT_BYTES_MAX]){}, FORMAT_BYTES_MAX, t, FORMAT_BYTES_USE_IEC|FORMAT_BYTES_ALWAYS_POINT|FORMAT_BYTES_TRAILING_B)
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#define FORMAT_BYTES_CGROUP_PROTECTION(t) (t == CGROUP_LIMIT_MAX ? "infinity" : FORMAT_BYTES(t))
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