1 files changed, 89 insertions, 0 deletions
diff --git a/src/basic/format-util.h b/src/basic/format-util.h
new file mode 100644
index 0000000..b7e1876
--- /dev/null
+++ b/src/basic/format-util.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <inttypes.h>
+#include <net/if.h>
+#include <stdbool.h>
+
+#include "cgroup-util.h"
+#include "macro.h"
+
+assert_cc(sizeof(pid_t) == sizeof(int32_t));
+#define PID_PRI PRIi32
+#define PID_FMT "%" PID_PRI
+
+assert_cc(sizeof(uid_t) == sizeof(uint32_t));
+#define UID_FMT "%" PRIu32
+
+assert_cc(sizeof(gid_t) == sizeof(uint32_t));
+#define GID_FMT "%" PRIu32
+
+#if SIZEOF_TIME_T == 8
+#  define PRI_TIME PRIi64
+#elif SIZEOF_TIME_T == 4
+#  define PRI_TIME "li"
+#else
+#  error Unknown time_t size
+#endif
+
+#if defined __x86_64__ && defined __ILP32__
+#  define PRI_TIMEX PRIi64
+#else
+#  define PRI_TIMEX "li"
+#endif
+
+#if SIZEOF_RLIM_T == 8
+#  define RLIM_FMT "%" PRIu64
+#elif SIZEOF_RLIM_T == 4
+#  define RLIM_FMT "%" PRIu32
+#else
+#  error Unknown rlim_t size
+#endif
+
+#if SIZEOF_DEV_T == 8
+#  define DEV_FMT "%" PRIu64
+#elif SIZEOF_DEV_T == 4
+#  define DEV_FMT "%" PRIu32
+#else
+#  error Unknown dev_t size
+#endif
+
+#if SIZEOF_INO_T == 8
+#  define INO_FMT "%" PRIu64
+#elif SIZEOF_INO_T == 4
+#  define INO_FMT "%" PRIu32
+#else
+#  error Unknown ino_t size
+#endif
+
+typedef enum {
+        FORMAT_IFNAME_IFINDEX              = 1 << 0,
+        FORMAT_IFNAME_IFINDEX_WITH_PERCENT = (1 << 1) | FORMAT_IFNAME_IFINDEX,
+} FormatIfnameFlag;
+
+char *format_ifname_full(int ifindex, char buf[static IF_NAMESIZE + 1], FormatIfnameFlag flag);
+static inline char *format_ifname(int ifindex, char buf[static IF_NAMESIZE + 1]) {
+        return format_ifname_full(ifindex, buf, 0);
+}
+
+typedef enum {
+        FORMAT_BYTES_USE_IEC     = 1 << 0,
+        FORMAT_BYTES_BELOW_POINT = 1 << 1,
+        FORMAT_BYTES_TRAILING_B  = 1 << 2,
+} FormatBytesFlag;
+
+#define FORMAT_BYTES_MAX 16U
+
+char *format_bytes_full(char *buf, size_t l, uint64_t t, FormatBytesFlag flag);
+
+static inline char *format_bytes(char *buf, size_t l, uint64_t t) {
+        return format_bytes_full(buf, l, t, FORMAT_BYTES_USE_IEC | FORMAT_BYTES_BELOW_POINT | FORMAT_BYTES_TRAILING_B);
+}
+
+static inline char *format_bytes_cgroup_protection(char *buf, size_t l, uint64_t t) {
+        if (t == CGROUP_LIMIT_MAX) {
+                (void) snprintf(buf, l, "%s", "infinity");
+                return buf;
+        }
+        return format_bytes(buf, l, t);
+}