SoW-2020-0002: Trace Hit Counters: trigger error reporting integration
[lttng-tools.git] / src / common / utils.h
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81b86775 1/*
ab5be9fa 2 * Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
81b86775 3 *
ab5be9fa 4 * SPDX-License-Identifier: GPL-2.0-only
81b86775 5 *
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6 */
7
8#ifndef _COMMON_UTILS_H
9#define _COMMON_UTILS_H
10
8db0dc00 11#include <getopt.h>
159b042f 12#include <lttng/lttng-error.h>
28ab59d0 13#include <stdbool.h>
159b042f 14#include <stdint.h>
28ab59d0 15#include <sys/types.h>
159b042f 16#include <unistd.h>
70d0b120 17
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18#include <common/compat/directory-handle.h>
19
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20#define KIBI_LOG2 10
21#define MEBI_LOG2 20
22#define GIBI_LOG2 30
23
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24char *utils_partial_realpath(const char *path, char *resolved_path,
25 size_t size);
81b86775 26char *utils_expand_path(const char *path);
4b223a67 27char *utils_expand_path_keep_symlink(const char *path);
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28int utils_create_pipe(int *dst);
29int utils_create_pipe_cloexec(int *dst);
094f381c 30int utils_create_pipe_cloexec_nonblock(int *dst);
81b86775 31void utils_close_pipe(int *src);
a4b92340 32char *utils_strdupdelim(const char *begin, const char *end);
b662582b 33int utils_set_fd_cloexec(int fd);
35f90c40 34int utils_create_pid_file(pid_t pid, const char *filepath);
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35int utils_mkdir(const char *path, mode_t mode, int uid, int gid);
36int utils_mkdir_recursive(const char *path, mode_t mode, int uid, int gid);
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37int utils_stream_file_path(const char *path_name, const char *file_name,
38 uint64_t size, uint64_t count, const char *suffix,
39 char *out_stream_path, size_t stream_path_len);
5983a922 40int utils_parse_size_suffix(char const * const str, uint64_t * const size);
7010c033 41int utils_parse_time_suffix(char const * const str, uint64_t * const time_us);
cfa9a5a2 42int utils_get_count_order_u32(uint32_t x);
db5be0a3 43int utils_get_count_order_u64(uint64_t x);
4f00620d 44const char *utils_get_home_dir(void);
fb198a11 45char *utils_get_user_home_dir(uid_t uid);
26fe5938 46size_t utils_get_current_time_str(const char *format, char *dst, size_t len);
28ab59d0 47int utils_get_group_id(const char *name, bool warn, gid_t *gid);
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48char *utils_generate_optstring(const struct option *long_options,
49 size_t opt_count);
c9cb3e7d 50int utils_create_lock_file(const char *filepath);
3d071855 51int utils_recursive_rmdir(const char *path);
93ec662e 52int utils_truncate_stream_file(int fd, off_t length);
4fc83d94 53int utils_show_help(int section, const char *page_name, const char *help_msg);
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54int utils_get_memory_available(size_t *value);
55int utils_get_memory_total(size_t *value);
ce9ee1fb 56int utils_change_working_directory(const char *path);
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57enum lttng_error_code utils_user_id_from_name(
58 const char *user_name, uid_t *user_id);
59enum lttng_error_code utils_group_id_from_name(
60 const char *group_name, gid_t *group_id);
81b86775 61
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62/*
63 * Parse `str` as an unsigned long long value.
64 *
65 * Return 0 on success. Return -1 on failure which can be because:
66 *
67 * - `str` is zero length
68 * - `str` contains invalid
69 */
70LTTNG_HIDDEN
71int utils_parse_unsigned_long_long(const char *str,
72 unsigned long long *value);
73
81b86775 74#endif /* _COMMON_UTILS_H */
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