diff options
Diffstat (limited to 'lib/stat-time.h')
| -rw-r--r-- | lib/stat-time.h | 51 |
1 files changed, 21 insertions, 30 deletions
diff --git a/lib/stat-time.h b/lib/stat-time.h index 5b27023..3cd8478 100644 --- a/lib/stat-time.h +++ b/lib/stat-time.h @@ -1,6 +1,6 @@ /* stat-related time functions. - Copyright (C) 2005, 2007, 2009-2023 Free Software Foundation, Inc. + Copyright (C) 2005, 2007, 2009-2024 Free Software Foundation, Inc. This file is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as @@ -52,11 +52,13 @@ extern "C" { #if _GL_WINDOWS_STAT_TIMESPEC || defined HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC # if _GL_WINDOWS_STAT_TIMESPEC || defined TYPEOF_STRUCT_STAT_ST_ATIM_IS_STRUCT_TIMESPEC # define STAT_TIMESPEC(st, st_xtim) ((st)->st_xtim) +# define STAT_TIMESPEC_OFFSETOF(st_xtim) offsetof (struct stat, st_xtim) # else # define STAT_TIMESPEC_NS(st, st_xtim) ((st)->st_xtim.tv_nsec) # endif #elif defined HAVE_STRUCT_STAT_ST_ATIMESPEC_TV_NSEC # define STAT_TIMESPEC(st, st_xtim) ((st)->st_xtim##espec) +# define STAT_TIMESPEC_OFFSETOF(st_xtim) offsetof (struct stat, st_xtim##espec) #elif defined HAVE_STRUCT_STAT_ST_ATIMENSEC # define STAT_TIMESPEC_NS(st, st_xtim) ((st)->st_xtim##ensec) #elif defined HAVE_STRUCT_STAT_ST_ATIM_ST__TIM_TV_NSEC @@ -122,10 +124,8 @@ get_stat_atime (struct stat const *st) #ifdef STAT_TIMESPEC return STAT_TIMESPEC (st, st_atim); #else - struct timespec t; - t.tv_sec = st->st_atime; - t.tv_nsec = get_stat_atime_ns (st); - return t; + return (struct timespec) { .tv_sec = st->st_atime, + .tv_nsec = get_stat_atime_ns (st) }; #endif } @@ -136,10 +136,8 @@ get_stat_ctime (struct stat const *st) #ifdef STAT_TIMESPEC return STAT_TIMESPEC (st, st_ctim); #else - struct timespec t; - t.tv_sec = st->st_ctime; - t.tv_nsec = get_stat_ctime_ns (st); - return t; + return (struct timespec) { .tv_sec = st->st_ctime, + .tv_nsec = get_stat_ctime_ns (st) }; #endif } @@ -150,10 +148,8 @@ get_stat_mtime (struct stat const *st) #ifdef STAT_TIMESPEC return STAT_TIMESPEC (st, st_mtim); #else - struct timespec t; - t.tv_sec = st->st_mtime; - t.tv_nsec = get_stat_mtime_ns (st); - return t; + return (struct timespec) { .tv_sec = st->st_mtime, + .tv_nsec = get_stat_mtime_ns (st) }; #endif } @@ -168,8 +164,8 @@ get_stat_birthtime (_GL_UNUSED struct stat const *st) || defined HAVE_STRUCT_STAT_ST_BIRTHTIM_TV_NSEC) t = STAT_TIMESPEC (st, st_birthtim); #elif defined HAVE_STRUCT_STAT_ST_BIRTHTIMENSEC - t.tv_sec = st->st_birthtime; - t.tv_nsec = st->st_birthtimensec; + t = (struct timespec) { .tv_sec = st->st_birthtime, + .tv_nsec = st->st_birthtimensec }; #elif defined _WIN32 && ! defined __CYGWIN__ /* Native Windows platforms (but not Cygwin) put the "file creation time" in st_ctime (!). See @@ -177,13 +173,11 @@ get_stat_birthtime (_GL_UNUSED struct stat const *st) # if _GL_WINDOWS_STAT_TIMESPEC t = st->st_ctim; # else - t.tv_sec = st->st_ctime; - t.tv_nsec = 0; + t = (struct timespec) { .tv_sec = st->st_ctime }; # endif #else /* Birth time is not supported. */ - t.tv_sec = -1; - t.tv_nsec = -1; + t = (struct timespec) { .tv_sec = -1, .tv_nsec = -1 }; #endif #if (defined HAVE_STRUCT_STAT_ST_BIRTHTIMESPEC_TV_NSEC \ @@ -195,30 +189,28 @@ get_stat_birthtime (_GL_UNUSED struct stat const *st) sometimes returns junk in the birth time fields; work around this bug if it is detected. */ if (! (t.tv_sec && 0 <= t.tv_nsec && t.tv_nsec < 1000000000)) - { - t.tv_sec = -1; - t.tv_nsec = -1; - } + t = (struct timespec) { .tv_sec = -1, .tv_nsec = -1 }; #endif return t; } /* If a stat-like function returned RESULT, normalize the timestamps - in *ST, in case this platform suffers from the Solaris 11 bug where + in *ST, if this platform suffers from a macOS and Solaris bug where tv_nsec might be negative. Return the adjusted RESULT, setting errno to EOVERFLOW if normalization overflowed. This function is intended to be private to this .h file. */ _GL_STAT_TIME_INLINE int stat_time_normalize (int result, _GL_UNUSED struct stat *st) { -#if defined __sun && defined STAT_TIMESPEC +#if (((defined __APPLE__ && defined __MACH__) || defined __sun) \ + && defined STAT_TIMESPEC_OFFSETOF) if (result == 0) { long int timespec_hz = 1000000000; - short int const ts_off[] = { offsetof (struct stat, st_atim), - offsetof (struct stat, st_mtim), - offsetof (struct stat, st_ctim) }; + short int const ts_off[] = { STAT_TIMESPEC_OFFSETOF (st_atim), + STAT_TIMESPEC_OFFSETOF (st_mtim), + STAT_TIMESPEC_OFFSETOF (st_ctim) }; int i; for (i = 0; i < sizeof ts_off / sizeof *ts_off; i++) { @@ -232,8 +224,7 @@ stat_time_normalize (int result, _GL_UNUSED struct stat *st) } ts->tv_nsec = r; /* Overflow is possible, as Solaris 11 stat can yield - tv_sec == TYPE_MINIMUM (time_t) && tv_nsec == -1000000000. - INT_ADD_WRAPV is OK, since time_t is signed on Solaris. */ + tv_sec == TYPE_MINIMUM (time_t) && tv_nsec == -1000000000. */ if (ckd_add (&ts->tv_sec, q, ts->tv_sec)) { errno = EOVERFLOW; |