project_files/hwc/rtl/sysutils.c
author unc0rr
Wed, 14 May 2014 01:07:43 +0400
changeset 10241 2dc9ff47c5b9
parent 10137 a4537aab4117
child 10564 0cb20aa8877a
permissions -rw-r--r--
Fix fpcrtl_strncompareA, also replace strncmp with memcmp for more efficiency
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#include "SysUtils.h"
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#include <time.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "system.h"
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#include "misc.h"
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TDateTime fpcrtl_date()
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{
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    const int num_days_between_1900_1980 = 29220;
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    struct tm ref_date;
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    struct tm cur_date;
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    time_t local_time;
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    time_t ref_time, cur_time;
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    double timeDiff;
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    double day_time_frac; //fraction that represents the time in one day
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    int num_seconds;
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    int numDays;
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    // unix epoch doesn't work, choose Jan 1st 1980 instead
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    ref_date.tm_year = 80;
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    ref_date.tm_mon = 0;
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    ref_date.tm_mday = 1;
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    ref_date.tm_hour = 0;
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    ref_date.tm_min = 0;
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    ref_date.tm_sec = 0;
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    ref_date.tm_isdst = 0;
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    ref_date.tm_wday = 0; // ignored
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    ref_date.tm_yday = 0; // ignored
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    local_time = time(NULL);
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    cur_date = *localtime(&local_time);
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    cur_date.tm_hour = 0;
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    cur_date.tm_min = 0;
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    cur_date.tm_sec = 0;
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    ref_time = mktime(&ref_date);
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    cur_time = mktime(&cur_date);
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    timeDiff = difftime(cur_time, ref_time);
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    numDays = fpcrtl_round(timeDiff / 3600 / 24) + num_days_between_1900_1980 + 1;
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    fpcrtl_printf("[date] tim diff: %f\n", timeDiff);
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    fpcrtl_printf("[date] num days between 1980 and today:  %d\n", fpcrtl_round(timeDiff/3600/24));
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    fpcrtl_printf("[date] current date: %s\n", asctime(&cur_date));
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    fpcrtl_printf("[date] reference date: %s\n", asctime(&ref_date));
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    fpcrtl_printf("[date] num days: %d\n", numDays);
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    return numDays;
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}
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TDateTime fpcrtl_time()
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{
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    struct tm cur_date;
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    time_t local_time;
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    time_t cur_time;
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    double day_time_frac; //fraction that represents the time in one day
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    int num_seconds;
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    local_time = time(NULL);
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    cur_date = *localtime(&local_time);
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    num_seconds = cur_date.tm_hour * 3600 + cur_date.tm_min * 60 + cur_date.tm_sec;
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    day_time_frac = num_seconds / 3600.0 / 24.0;
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    fpcrtl_printf("%f\n", day_time_frac);
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    return day_time_frac;
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}
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TDateTime fpcrtl_now()
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{
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    return fpcrtl_date() + fpcrtl_time();
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}
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/*
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 * XXX: dummy
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 */
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string255 fpcrtl_formatDateTime(string255 FormatStr, TDateTime DateTime)
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{
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    string255 result = STRINIT("2012 01-01");
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    return result;
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}
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string255 fpcrtl_trim(string255 s)
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{
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    int left, right;
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    if(s.len == 0){
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        return s;
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    }
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    for(left = 0; left < s.len; left++)
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    {
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        if(s.str[left] != ' '){
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            break;
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        }
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    }
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    for(right = s.len - 1; right >= 0; right--)
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    {
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        if(s.str[right] != ' '){
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            break;
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        }
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    }
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    if(left > right){
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        s.len = 0;
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        s.str[0] = 0;
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        return s;
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    }
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    s.len = right - left + 1;
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    memmove(s.str, s.str + left, s.len);
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    s.str[s.len] = 0;
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    return s;
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}
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Integer fpcrtl_strToInt(string255 s)
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{
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    s.str[s.len] = 0;
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    return atoi(s.str);
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}
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//function ExtractFileName(const FileName: string): string;
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//var
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//  i : longint;
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//  EndSep : Set of Char;
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//begin
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//  I := Length(FileName);
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//  EndSep:=AllowDirectorySeparators+AllowDriveSeparators;
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//  while (I > 0) and not (FileName[I] in EndSep) do
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//    Dec(I);
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//  Result := Copy(FileName, I + 1, MaxInt);
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//end;
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string255 fpcrtl_extractFileName(string255 f)
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{
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    const char sep[] = {'\\', '/', ':'};
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    LongInt i,j;
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    i = f.len - 1;
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    while(i >= 0){
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        for(j = 0; j < sizeof(sep); j++){
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            if(f.str[i] == sep[j]){
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                goto FPCRTL_EXTRACTFILENAME_END;
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            }
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        }
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        i--;
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    }
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FPCRTL_EXTRACTFILENAME_END:
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    return fpcrtl_copy(f, i + 2, 256);
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}
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string255 fpcrtl_strPas(PChar p)
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{
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    return fpcrtl_pchar2str(p);
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}