X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Futil.h;h=d46ff27f1c717752f860bc2a6eae06acfd70f843;hb=9588bc32096fc8342bfd8b989689717186d7d86e;hp=63f4e3dff2730db346979442061c4e9f48a299b5;hpb=df89481a35d4d7d58c7563f3082f67c218891375;p=elogind.git diff --git a/src/shared/util.h b/src/shared/util.h index 63f4e3dff..d46ff27f1 100644 --- a/src/shared/util.h +++ b/src/shared/util.h @@ -39,6 +39,7 @@ #include #include #include +#include #include "macro.h" #include "time-util.h" @@ -253,6 +254,7 @@ int make_null_stdio(void); int make_console_stdio(void); unsigned long long random_ull(void); +unsigned random_u(void); /* For basic lookup tables with strictly enumerated entries */ #define __DEFINE_STRING_TABLE_LOOKUP(name,type,scope) \ @@ -318,7 +320,7 @@ bool fstype_is_network(const char *fstype); int chvt(int vt); int read_one_char(FILE *f, char *ret, usec_t timeout, bool *need_nl); -int ask(char *ret, const char *replies, const char *text, ...) _printf_attr_(3, 4); +int ask(char *ret, const char *replies, const char *text, ...) _printf_(3, 4); int reset_terminal_fd(int fd, bool switch_to_text); int reset_terminal(const char *name); @@ -372,8 +374,8 @@ int pipe_eof(int fd); cpu_set_t* cpu_set_malloc(unsigned *ncpus); -int status_vprintf(const char *status, bool ellipse, bool ephemeral, const char *format, va_list ap) _printf_attr_(4,0); -int status_printf(const char *status, bool ellipse, bool ephemeral, const char *format, ...) _printf_attr_(4,5); +int status_vprintf(const char *status, bool ellipse, bool ephemeral, const char *format, va_list ap) _printf_(4,0); +int status_printf(const char *status, bool ellipse, bool ephemeral, const char *format, ...) _printf_(4,5); int status_welcome(void); int fd_columns(int fd); @@ -403,6 +405,7 @@ static inline const char *ansi_highlight_off(void) { int running_in_chroot(void); char *ellipsize(const char *s, size_t length, unsigned percent); + /* bytes columns */ char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent); int touch(const char *path); @@ -447,7 +450,7 @@ int terminal_vhangup(const char *name); int vt_disallocate(const char *name); -int copy_file(const char *from, const char *to); +int copy_file(const char *from, const char *to, int flags); int symlink_atomic(const char *from, const char *to); @@ -553,37 +556,40 @@ static inline void freep(void *p) { free(*(void**) p); } -static inline void fclosep(FILE **f) { - if (*f) - fclose(*f); -} - -static inline void pclosep(FILE **f) { - if (*f) - pclose(*f); -} +#define DEFINE_TRIVIAL_CLEANUP_FUNC(type, func) \ + static inline void func##p(type *p) { \ + if (*p) \ + func(*p); \ + } \ + struct __useless_struct_to_allow_trailing_semicolon__ static inline void closep(int *fd) { if (*fd >= 0) close_nointr_nofail(*fd); } -static inline void closedirp(DIR **d) { - if (*d) - closedir(*d); -} - static inline void umaskp(mode_t *u) { umask(*u); } +static inline void close_pipep(int (*p)[2]) { + close_pipe(*p); +} + +DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, fclose); +DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, pclose); +DEFINE_TRIVIAL_CLEANUP_FUNC(DIR*, closedir); +DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, endmntent); + #define _cleanup_free_ _cleanup_(freep) -#define _cleanup_fclose_ _cleanup_(fclosep) -#define _cleanup_pclose_ _cleanup_(pclosep) #define _cleanup_close_ _cleanup_(closep) -#define _cleanup_closedir_ _cleanup_(closedirp) #define _cleanup_umask_ _cleanup_(umaskp) #define _cleanup_globfree_ _cleanup_(globfree) +#define _cleanup_fclose_ _cleanup_(fclosep) +#define _cleanup_pclose_ _cleanup_(pclosep) +#define _cleanup_closedir_ _cleanup_(closedirp) +#define _cleanup_endmntent_ _cleanup_(endmntentp) +#define _cleanup_close_pipe_ _cleanup_(close_pipep) _malloc_ _alloc_(1, 2) static inline void *malloc_multiply(size_t a, size_t b) { if (_unlikely_(b == 0 || a > ((size_t) -1) / b)) @@ -616,6 +622,7 @@ typedef enum DrawSpecialChar { DRAW_TREE_RIGHT, DRAW_TREE_SPACE, DRAW_TRIANGULAR_BULLET, + DRAW_BLACK_CIRCLE, _DRAW_SPECIAL_CHAR_MAX } DrawSpecialChar; const char *draw_special_char(DrawSpecialChar ch); @@ -763,3 +770,19 @@ bool id128_is_valid(const char *s) _pure_; void parse_user_at_host(char *arg, char **user, char **host); int split_pair(const char *s, const char *sep, char **l, char **r); + +int shall_restore_state(void); + +/** + * Normal qsort requires base to be nonnull. Here were require + * that only if nmemb > 0. + */ +static inline void qsort_safe(void *base, size_t nmemb, size_t size, + int (*compar)(const void *, const void *)) { + if (nmemb) { + assert(base); + qsort(base, nmemb, size, compar); + } +} + +int proc_cmdline(char **ret);