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88 lines
2.0 KiB
88 lines
2.0 KiB
#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <time.h>
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#include <unistd.h>
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#include <string.h>
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#include <debug.h>
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#include <colours.h>
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enum jt_comp {
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JT_COMP_UNIX,
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JT_COMP_DATE,
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JT_COMP_TIME,
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JT_COMP_DATETIME,
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};
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#define CLONE(p) ({ __auto_type $__p = (p); \
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__auto_type $__r = __builtin_choose_expr(__builtin_classify_type($__p) == 5, *$__p, $__p); \
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/* ((__typeof__($__r) []) { $__r }); }) */ \
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__typeof__($__r) $__rp[1]; \
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$__rp[0] = $__r; \
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&$__rp[0]; })
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__attribute__((returns_nonnull, nonnull(1)))
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static inline
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const char* jtime(const struct tm* restrict lt, enum jt_comp kind)
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{
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_Thread_local static char datebuf[1
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+ 4 + 2 + 4 + 1 // `dd/mm/yyyy`
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+ 6 + 3 // ` hh:MM:ss`
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];
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_Static_assert(sizeof(datebuf) != sizeof(char*), "Unexpected decay");
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//memset(datebuf, '0', sizeof(datebuf)-1);
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if(!kind)
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snprintf(datebuf, sizeof(datebuf), "%lu", mktime(CLONE(lt)));
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else {
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size_t w = 0, sz = sizeof(datebuf);
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if(kind & JT_COMP_DATE)
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w += snprintf(datebuf, sz, "%02u/%02u/%4.4u"
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, (unsigned)lt->tm_mday
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, (unsigned)lt->tm_mon
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, (unsigned)(1900 + lt->tm_year));
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if(kind & JT_COMP_TIME)
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w += snprintf(datebuf+w, sz - w, " %02u:%02u:%02u"
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, (unsigned)lt->tm_hour
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, (unsigned)lt->tm_min
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, (unsigned)lt->tm_sec);
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}
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return datebuf;
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}
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void _do_dprintf(struct debuginfo info, const char* fmt, ...)
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{
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#ifdef DEBUG
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va_list li;
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time_t utime;
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struct tm ltime;
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time(&utime);
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localtime_r(&utime, <ime);
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va_start(li, fmt);
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#ifdef D_TRACE
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#define FMT_FUNC "%s"
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#else
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#define FMT_FUNC "%s()"
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#endif
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#define TTY_OUT "["FGRN("dbg")" (%s %s) " FYEL("@") BOLD("%s") "->" FWHT(FMT_FUNC) ":" FYEL("%d") "]: "
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#define NCOL(x) x
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#define FIL_OUT "["NCOL("dbg")" (%s %s) " NCOL("@") NCOL("%s") "->" NCOL(FMT_FUNC) ":" NCOL("%d") "]: "
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fprintf(stderr, isatty(fileno(stderr)) ? (TTY_OUT) : (FIL_OUT)
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, jtime(<ime, JT_COMP_DATETIME), ltime.tm_zone
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, info.file
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, info.function
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, info.line);
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vfprintf(stderr, fmt, li);
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fprintf(stderr, "\n");
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va_end(li);
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#endif
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}
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