X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=util.h;h=14f1a7a177d9b7a677b942d46c6ccccf6bf29cab;hp=2df67b73df5af2934c5b6edcdf17e7772c43151f;hb=db12775d59ab709f8afc361eaa30c9d54a0a8d7c;hpb=852618039bea9f6fa851a0ae3101f79b65d3cf6b diff --git a/util.h b/util.h index 2df67b73d..14f1a7a17 100644 --- a/util.h +++ b/util.h @@ -3,16 +3,43 @@ #ifndef fooutilhfoo #define fooutilhfoo +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 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 + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with systemd; If not, see . +***/ + #include #include #include #include +#include typedef uint64_t usec_t; -#define USEC_PER_SEC 1000000ULL +#define MSEC_PER_SEC 1000ULL +#define USEC_PER_SEC 1000000ULL +#define USEC_PER_MSEC 1000ULL +#define NSEC_PER_SEC 1000000000ULL +#define NSEC_PER_MSEC 1000000ULL #define NSEC_PER_USEC 1000ULL +/* What is interpreted as whitespace? */ +#define WHITESPACE " \t\n\r" + usec_t now(clockid_t clock); usec_t timespec_load(const struct timespec *ts); @@ -41,14 +68,141 @@ static inline const char* strnull(const char *s) { return s ? s : "(null)"; } +static inline const char *strna(const char *s) { + return s ? s : "n/a"; +} + +static inline bool is_path_absolute(const char *p) { + return *p == '/'; +} + bool endswith(const char *s, const char *postfix); bool startswith(const char *s, const char *prefix); -int nointr_close(int fd); +bool first_word(const char *s, const char *word); + +int close_nointr(int fd); +void close_nointr_nofail(int fd); int parse_boolean(const char *v); int safe_atou(const char *s, unsigned *ret_u); int safe_atoi(const char *s, int *ret_i); +int safe_atolu(const char *s, unsigned long *ret_u); +int safe_atoli(const char *s, long int *ret_i); + +int safe_atollu(const char *s, unsigned long long *ret_u); +int safe_atolli(const char *s, long long int *ret_i); + +char *split(const char *c, size_t *l, const char *separator, char **state); +char *split_quoted(const char *c, size_t *l, char **state); + +#define FOREACH_WORD(word, length, s, state) \ + for ((state) = NULL, (word) = split((s), &(length), WHITESPACE, &(state)); (word); (word) = split((s), &(length), WHITESPACE, &(state))) + +#define FOREACH_WORD_SEPARATOR(word, length, s, separator, state) \ + for ((state) = NULL, (word) = split((s), &(length), (separator), &(state)); (word); (word) = split((s), &(length), (separator), &(state))) + +#define FOREACH_WORD_QUOTED(word, length, s, state) \ + for ((state) = NULL, (word) = split_quoted((s), &(length), &(state)); (word); (word) = split_quoted((s), &(length), &(state))) + +char **split_path_and_make_absolute(const char *p); + +pid_t get_parent_of_pid(pid_t pid, pid_t *ppid); + +int write_one_line_file(const char *fn, const char *line); +int read_one_line_file(const char *fn, char **line); + +char *strappend(const char *s, const char *suffix); + +int readlink_malloc(const char *p, char **r); + +char *file_name_from_path(const char *p); +bool is_path(const char *p); + +bool path_is_absolute(const char *p); +char *path_make_absolute(const char *p, const char *prefix); +char *path_make_absolute_cwd(const char *p); +char **strv_path_make_absolute_cwd(char **l); + +int reset_all_signal_handlers(void); + +char *strstrip(char *s); +char *delete_chars(char *s, const char *bad); + +char *file_in_same_dir(const char *path, const char *filename); +int mkdir_parents(const char *path, mode_t mode); + +char hexchar(int x); +int unhexchar(char c); +char octchar(int x); +int unoctchar(char c); +char decchar(int x); +int undecchar(char c); + +char *cescape(const char *s); +char *cunescape(const char *s); + +char *path_kill_slashes(char *path); + +bool path_startswith(const char *path, const char *prefix); + +char *ascii_strlower(char *path); + +char *xescape(const char *s, const char *bad); + +char *bus_path_escape(const char *s); +char *bus_path_unescape(const char *s); + +bool ignore_file(const char *filename); + +bool chars_intersect(const char *a, const char *b); + +#define DEFINE_STRING_TABLE_LOOKUP(name,type) \ + const char *name##_to_string(type i) { \ + if (i < 0 || i >= (type) ELEMENTSOF(name##_table)) \ + return NULL; \ + return name##_table[i]; \ + } \ + type name##_from_string(const char *s) { \ + type i; \ + unsigned u = 0; \ + assert(s); \ + for (i = 0; i < (type)ELEMENTSOF(name##_table); i++) \ + if (streq(name##_table[i], s)) \ + return i; \ + if (safe_atou(s, &u) >= 0 && \ + u < ELEMENTSOF(name##_table)) \ + return (type) u; \ + return (type) -1; \ + } \ + struct __useless_struct_to_allow_trailing_semicolon__ + + +int fd_nonblock(int fd, bool nonblock); +int fd_cloexec(int fd, bool cloexec); + +int close_all_fds(const int except[], unsigned n_except); + +extern char * __progname; + +const char *ioprio_class_to_string(int i); +int ioprio_class_from_string(const char *s); + +const char *sigchld_code_to_string(int i); +int sigchld_code_from_string(const char *s); + +const char *log_facility_to_string(int i); +int log_facility_from_string(const char *s); + +const char *log_level_to_string(int i); +int log_level_from_string(const char *s); + +const char *sched_policy_to_string(int i); +int sched_policy_from_string(const char *s); + +const char *rlimit_to_string(int i); +int rlimit_from_string(const char *s); + #endif