From 43d8ecd5678f122b29f8603ff3cfe5221f5be4c5 Mon Sep 17 00:00:00 2001 From: cuz Date: Tue, 12 Nov 2002 22:06:02 +0000 Subject: [PATCH] Added lots of functions from time.h git-svn-id: svn://svn.cc65.org/cc65/trunk@1507 b7a2c559-68d2-44c3-8de9-860c34a00d81 --- libsrc/common/.cvsignore | 6 ++ libsrc/common/Makefile | 6 ++ libsrc/common/asctime.c | 73 +++++++++++++++ libsrc/common/ctime.s | 19 ++++ libsrc/common/gmtime.c | 57 ++++++++++++ libsrc/common/localtime.c | 69 ++++++++++++++ libsrc/common/mktime.c | 191 ++++++++++++++++++++++++++++++++++++++ libsrc/common/timezone.c | 48 ++++++++++ 8 files changed, 469 insertions(+) create mode 100644 libsrc/common/asctime.c create mode 100644 libsrc/common/ctime.s create mode 100644 libsrc/common/gmtime.c create mode 100644 libsrc/common/localtime.c create mode 100644 libsrc/common/mktime.c create mode 100644 libsrc/common/timezone.c diff --git a/libsrc/common/.cvsignore b/libsrc/common/.cvsignore index 68876ae16..0939e9b10 100644 --- a/libsrc/common/.cvsignore +++ b/libsrc/common/.cvsignore @@ -4,6 +4,7 @@ _fopen.s _hextab.s _scanf.s abort.s +asctime.s bsearch.s errormsg.s fclose.s @@ -22,7 +23,10 @@ ftell.s fwrite.s getchar.s gets.s +gmtime.s locale.s +localtime.s +mktime.s perror.s putchar.s puts.s @@ -30,7 +34,9 @@ qsort.s realloc.s rewind.s sscanf.s +strftime.s strtok.s strxfrm.s +timezone.s vprintf.s vsscanf.s diff --git a/libsrc/common/Makefile b/libsrc/common/Makefile index 6df96901d..11c209dd1 100644 --- a/libsrc/common/Makefile +++ b/libsrc/common/Makefile @@ -16,6 +16,7 @@ C_OBJS = _afailed.o \ _hextab.o \ _scanf.o \ abort.o \ + asctime.o \ bsearch.o \ errormsg.o \ fclose.o \ @@ -34,7 +35,10 @@ C_OBJS = _afailed.o \ fwrite.o \ getchar.o \ gets.o \ + gmtime.o \ locale.o \ + localtime.o \ + mktime.o \ perror.o \ putchar.o \ puts.o \ @@ -44,6 +48,7 @@ C_OBJS = _afailed.o \ sscanf.o \ strxfrm.o \ strtok.o \ + timezone.o \ vprintf.o \ vsscanf.o @@ -62,6 +67,7 @@ S_OBJS = _fdesc.o \ calloc.o \ copydata.o \ cprintf.o \ + ctime.o \ divt.o \ errno.o \ fmisc.o \ diff --git a/libsrc/common/asctime.c b/libsrc/common/asctime.c new file mode 100644 index 000000000..76c7d92f9 --- /dev/null +++ b/libsrc/common/asctime.c @@ -0,0 +1,73 @@ +/*****************************************************************************/ +/* */ +/* asctime.c */ +/* */ +/* Convert a broken down time into a string */ +/* */ +/* */ +/* */ +/* (C) 2002 Ullrich von Bassewitz */ +/* Wacholderweg 14 */ +/* D-70597 Stuttgart */ +/* EMail: uz@musoftware.de */ +/* */ +/* */ +/* This software is provided 'as-is', without any expressed or implied */ +/* warranty. In no event will the authors be held liable for any damages */ +/* arising from the use of this software. */ +/* */ +/* Permission is granted to anyone to use this software for any purpose, */ +/* including commercial applications, and to alter it and redistribute it */ +/* freely, subject to the following restrictions: */ +/* */ +/* 1. The origin of this software must not be misrepresented; you must not */ +/* claim that you wrote the original software. If you use this software */ +/* in a product, an acknowledgment in the product documentation would be */ +/* appreciated but is not required. */ +/* 2. Altered source versions must be plainly marked as such, and must not */ +/* be misrepresented as being the original software. */ +/* 3. This notice may not be removed or altered from any source */ +/* distribution. */ +/* */ +/*****************************************************************************/ + + + +#include +#include + + + +char* __fastcall__ asctime (const struct tm* timep) +{ + static const char days[7][4] = { + "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" + }; + static const char months[12][4] = { + "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" + }; + static char buf[26]; + + /* Create a copy of the given data and make sure it is valid */ + struct tm t; + t = *timep; + mktime (&t); + + /* Format into given buffer */ + sprintf(buf, + "%s %s%3d %02d:%02d:%02d %d\n", + days[t.tm_wday], + months[t.tm_mon], + t.tm_mday, + t.tm_hour, + t.tm_min, + t.tm_sec, + t.tm_year + 1900); + + /* Return the result */ + return buf; +} + + + diff --git a/libsrc/common/ctime.s b/libsrc/common/ctime.s new file mode 100644 index 000000000..d15df3c9a --- /dev/null +++ b/libsrc/common/ctime.s @@ -0,0 +1,19 @@ +; +; Ullrich von Bassewitz, 12.11.2002 +; +; char* __fastcall__ ctime (time_t* timep); +; + + .export _ctime + .import _localtime, _asctime + + +.proc _ctime + +; return asctime (localtime (timep)); + + jsr _localtime + jmp _asctime + +.endproc + diff --git a/libsrc/common/gmtime.c b/libsrc/common/gmtime.c new file mode 100644 index 000000000..fde5f8c4d --- /dev/null +++ b/libsrc/common/gmtime.c @@ -0,0 +1,57 @@ +/*****************************************************************************/ +/* */ +/* gmtime.c */ +/* */ +/* Convert calendar time into broken down time in UTC */ +/* */ +/* */ +/* */ +/* (C) 2002 Ullrich von Bassewitz */ +/* Wacholderweg 14 */ +/* D-70597 Stuttgart */ +/* EMail: uz@musoftware.de */ +/* */ +/* */ +/* This software is provided 'as-is', without any expressed or implied */ +/* warranty. In no event will the authors be held liable for any damages */ +/* arising from the use of this software. */ +/* */ +/* Permission is granted to anyone to use this software for any purpose, */ +/* including commercial applications, and to alter it and redistribute it */ +/* freely, subject to the following restrictions: */ +/* */ +/* 1. The origin of this software must not be misrepresented; you must not */ +/* claim that you wrote the original software. If you use this software */ +/* in a product, an acknowledgment in the product documentation would be */ +/* appreciated but is not required. */ +/* 2. Altered source versions must be plainly marked as such, and must not */ +/* be misrepresented as being the original software. */ +/* 3. This notice may not be removed or altered from any source */ +/* distribution. */ +/* */ +/*****************************************************************************/ + + + +#include + + + +struct tm* __fastcall__ gmtime (const time_t* timep) +{ + time_t t; + + /* Check for a valid time spec */ + if (timep == 0) { + return 0; + } + + /* Get the time and correct for the time zone offset */ + t = *timep + _tz.timezone; + + /* Use localtime for conversion */ + return localtime (&t); +} + + + diff --git a/libsrc/common/localtime.c b/libsrc/common/localtime.c new file mode 100644 index 000000000..92fabcd6e --- /dev/null +++ b/libsrc/common/localtime.c @@ -0,0 +1,69 @@ +/*****************************************************************************/ +/* */ +/* localtime.c */ +/* */ +/* Convert calendar time into broken down local time */ +/* */ +/* */ +/* */ +/* (C) 2002 Ullrich von Bassewitz */ +/* Wacholderweg 14 */ +/* D-70597 Stuttgart */ +/* EMail: uz@musoftware.de */ +/* */ +/* */ +/* This software is provided 'as-is', without any expressed or implied */ +/* warranty. In no event will the authors be held liable for any damages */ +/* arising from the use of this software. */ +/* */ +/* Permission is granted to anyone to use this software for any purpose, */ +/* including commercial applications, and to alter it and redistribute it */ +/* freely, subject to the following restrictions: */ +/* */ +/* 1. The origin of this software must not be misrepresented; you must not */ +/* claim that you wrote the original software. If you use this software */ +/* in a product, an acknowledgment in the product documentation would be */ +/* appreciated but is not required. */ +/* 2. Altered source versions must be plainly marked as such, and must not */ +/* be misrepresented as being the original software. */ +/* 3. This notice may not be removed or altered from any source */ +/* distribution. */ +/* */ +/*****************************************************************************/ + + + +#include + + + +struct tm* __fastcall__ localtime (const time_t* timep) +{ + static struct tm timebuf; + time_t t; + + /* Check the argument */ + if (timep == 0 || (long) (t = *timep) < 0) { + /* Invalid arg */ + return 0; + } + + /* Since our ints are just 16 bits, split the given time into seconds, + * hours and days. Each of the values will fit in a 16 bit variable. + * The mktime routine will then do the rest. + */ + timebuf.tm_sec = t % 3600; + timebuf.tm_min = 0; + timebuf.tm_hour = (t / 3600) % 24; + timebuf.tm_mday = (t / (3600UL * 24UL)) + 1; + timebuf.tm_mon = 0; + timebuf.tm_year = 70; /* Base value is 1/1/1970 */ + + /* Call mktime to do the final conversion */ + mktime (&timebuf); + + /* Return the result */ + return &timebuf; +} + + diff --git a/libsrc/common/mktime.c b/libsrc/common/mktime.c new file mode 100644 index 000000000..b18514292 --- /dev/null +++ b/libsrc/common/mktime.c @@ -0,0 +1,191 @@ +/*****************************************************************************/ +/* */ +/* mktime.c */ +/* */ +/* Make calendar time from broken down time and cleanup */ +/* */ +/* */ +/* */ +/* (C) 2002 Ullrich von Bassewitz */ +/* Wacholderweg 14 */ +/* D-70597 Stuttgart */ +/* EMail: uz@musoftware.de */ +/* */ +/* */ +/* This software is provided 'as-is', without any expressed or implied */ +/* warranty. In no event will the authors be held liable for any damages */ +/* arising from the use of this software. */ +/* */ +/* Permission is granted to anyone to use this software for any purpose, */ +/* including commercial applications, and to alter it and redistribute it */ +/* freely, subject to the following restrictions: */ +/* */ +/* 1. The origin of this software must not be misrepresented; you must not */ +/* claim that you wrote the original software. If you use this software */ +/* in a product, an acknowledgment in the product documentation would be */ +/* appreciated but is not required. */ +/* 2. Altered source versions must be plainly marked as such, and must not */ +/* be misrepresented as being the original software. */ +/* 3. This notice may not be removed or altered from any source */ +/* distribution. */ +/* */ +/*****************************************************************************/ + + + +#include +#include +#include + + + +/*****************************************************************************/ +/* Data */ +/*****************************************************************************/ + + + +#define JANUARY 0 +#define FEBRUARY 1 +#define DECEMBER 11 +#define JAN_1_1970 4 /* 1/1/1970 is a thursday */ + + + +static const unsigned char MonthLength [] = { + 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 +}; +static const unsigned MonthDays [] = { + 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 +}; + + + +/*****************************************************************************/ +/* Code */ +/*****************************************************************************/ + + + +static unsigned char IsLeapYear (int Year) +/* Returns 1 if the given year is a leap year */ +{ + return (((Year % 4) == 0) && ((Year % 100) != 0 || (Year % 400) == 0)); +} + + + +time_t __fastcall__ mktime (struct tm* TM) +/* Make a time in seconds since 1/1/1970 from the broken down time in TM. + * A call to mktime does also correct the time in TM to contain correct + * values. + */ +{ + div_t D; + int Max; + unsigned DayCount; + + /* Check if TM is valid */ + if (TM == 0) { + /* Invalid data */ + goto Error; + } + + /* Adjust seconds. */ + D = div (TM->tm_sec, 60); + TM->tm_sec = D.rem; + + /* Adjust minutes */ + if (TM->tm_min + D.quot < 0) { + goto Error; + } + TM->tm_min += D.quot; + D = div (TM->tm_min, 60); + TM->tm_min = D.rem; + + /* Adjust hours */ + if (TM->tm_hour + D.quot < 0) { + goto Error; + } + TM->tm_hour += D.quot; + D = div (TM->tm_hour, 24); + TM->tm_hour = D.rem; + + /* Adjust days */ + if (TM->tm_mday + D.quot < 0) { + goto Error; + } + TM->tm_mday += D.quot; + + /* Adjust month and year. This is an iterative process, since changing + * the month will change the allowed days for this month. + */ + while (1) { + + /* Make sure, month is in the range 0..11 */ + D = div (TM->tm_mon, 12); + TM->tm_mon = D.rem; + if (TM->tm_year + D.quot < 0) { + goto Error; + } + TM->tm_year += D.quot; + + /* Now check if mday is in the correct range, if not, correct month + * and eventually year and repeat the process. + */ + if (TM->tm_mon == FEBRUARY && IsLeapYear (TM->tm_year + 1900)) { + Max = 29; + } else { + Max = MonthLength[TM->tm_mon]; + } + if (TM->tm_mday > Max) { + /* Must correct month and eventually, year */ + if (TM->tm_mon == DECEMBER) { + TM->tm_mon = JANUARY; + ++TM->tm_year; + } else { + ++TM->tm_mon; + } + TM->tm_mday -= Max; + } else { + /* Done */ + break; + } + } + + /* Ok, all time/date fields are now correct. Calculate the days in this + * year. + */ + TM->tm_yday = MonthDays[TM->tm_mon] + TM->tm_mday - 1; + if (TM->tm_mon > FEBRUARY && IsLeapYear (TM->tm_year + 1900)) { + ++TM->tm_yday; + } + + /* Calculate days since 1/1/1970. In the complete epoch (1/1/1970 to + * somewhere in 2038) all years dividable by 4 are leap years, so + * dividing by 4 gives the days that must be added cause of leap years. + * (and the last leap year before 1970 was 1968) + */ + DayCount = ((unsigned) (TM->tm_year-70)) * 365U + + (((unsigned) (TM->tm_year-68-1)) / 4) + + TM->tm_yday; + + /* Calculate the weekday */ + TM->tm_wday = (JAN_1_1970 + DayCount) % 7; + + /* No (US) daylight saving (for now) */ + TM->tm_isdst = 0; + + /* Return seconds since 1970 */ + return DayCount * 86400UL + + ((unsigned) TM->tm_hour) * 3600UL + + ((unsigned) TM->tm_min) * 60U + + ((unsigned) TM->tm_sec); + +Error: + /* Error exit */ + return (time_t) -1L; +} + + + diff --git a/libsrc/common/timezone.c b/libsrc/common/timezone.c new file mode 100644 index 000000000..b8484dc74 --- /dev/null +++ b/libsrc/common/timezone.c @@ -0,0 +1,48 @@ +/*****************************************************************************/ +/* */ +/* timezone.c */ +/* */ +/* Timezone specification */ +/* */ +/* */ +/* */ +/* (C) 2002 Ullrich von Bassewitz */ +/* Wacholderweg 14 */ +/* D-70597 Stuttgart */ +/* EMail: uz@musoftware.de */ +/* */ +/* */ +/* This software is provided 'as-is', without any expressed or implied */ +/* warranty. In no event will the authors be held liable for any damages */ +/* arising from the use of this software. */ +/* */ +/* Permission is granted to anyone to use this software for any purpose, */ +/* including commercial applications, and to alter it and redistribute it */ +/* freely, subject to the following restrictions: */ +/* */ +/* 1. The origin of this software must not be misrepresented; you must not */ +/* claim that you wrote the original software. If you use this software */ +/* in a product, an acknowledgment in the product documentation would be */ +/* appreciated but is not required. */ +/* 2. Altered source versions must be plainly marked as such, and must not */ +/* be misrepresented as being the original software. */ +/* 3. This notice may not be removed or altered from any source */ +/* distribution. */ +/* */ +/*****************************************************************************/ + + + +#include + + + +struct _timezone _tz = { + 0, /* True if daylight savings time active */ + 0, /* Number of seconds behind UTC */ + "UTC", /* Name of timezone, e.g. CET */ + "UTC" /* Name when daylight true, e.g. CEST */ +}; + + + -- 2.39.5