Custom localtime functions for multiple timezones. More...
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Data Structures | |
struct | ast_tm |
Functions | |
void | ast_get_dst_info (const time_t *const timep, int *dst_enabled, time_t *dst_start, time_t *dst_end, int *gmt_off, const char *const zone) |
struct ast_tm * | ast_localtime (const struct timeval *timep, struct ast_tm *p_tm, const char *zone) |
Timezone-independent version of localtime_r(3). | |
struct timeval | ast_mktime (struct ast_tm *const tmp, const char *zone) |
Timezone-independent version of mktime(3). | |
int | ast_strftime (char *buf, size_t len, const char *format, const struct ast_tm *tm) |
Special version of strftime(3) that handles fractions of a second. Takes the same arguments as strftime(3), with the addition of q, which specifies microseconds. | |
char * | ast_strptime (const char *s, const char *format, struct ast_tm *tm) |
Special version of strptime(3) which places the answer in the common structure ast_tm. Also, unlike strptime(3), ast_strptime() initializes its memory prior to use. |
Custom localtime functions for multiple timezones.
Definition in file localtime.h.
void ast_get_dst_info | ( | const time_t *const | timep, |
int * | dst_enabled, | ||
time_t * | dst_start, | ||
time_t * | dst_end, | ||
int * | gmt_off, | ||
const char *const | zone | ||
) |
Definition at line 1321 of file localtime.c.
References ast_tzset(), state::ats, AVGSECSPERYEAR, state::goahead, state::goback, state::timecnt, ttinfo::tt_gmtoff, ttinfo::tt_isdst, state::ttis, state::typecnt, state::types, and YEARSPERREPEAT.
Referenced by set_timezone_variables().
{ int i; int transition1 = -1; int transition2 = -1; time_t seconds; int bounds_exceeded = 0; time_t t = *timep; const struct state *sp; if (NULL == dst_enabled) return; *dst_enabled = 0; if (NULL == dst_start || NULL == dst_end || NULL == gmt_off) return; *gmt_off = 0; sp = ast_tzset(zone); if (NULL == sp) return; /* If the desired time exceeds the bounds of the defined time transitions * then give give up on determining DST info and simply look for gmt offset * This requires that I adjust the given time using increments of Gregorian * repeats to place the time within the defined time transitions in the * timezone structure. */ if ((sp->goback && t < sp->ats[0]) || (sp->goahead && t > sp->ats[sp->timecnt - 1])) { time_t tcycles; int_fast64_t icycles; if (t < sp->ats[0]) seconds = sp->ats[0] - t; else seconds = t - sp->ats[sp->timecnt - 1]; --seconds; tcycles = seconds / YEARSPERREPEAT / AVGSECSPERYEAR; ++tcycles; icycles = tcycles; if (tcycles - icycles >= 1 || icycles - tcycles >= 1) return; seconds = icycles; seconds *= YEARSPERREPEAT; seconds *= AVGSECSPERYEAR; if (t < sp->ats[0]) t += seconds; else t -= seconds; if (t < sp->ats[0] || t > sp->ats[sp->timecnt - 1]) return; /* "cannot happen" */ bounds_exceeded = 1; } if (sp->timecnt == 0 || t < sp->ats[0]) { /* I have no transition times or I'm before time */ *dst_enabled = 0; /* Find where I can get gmtoff */ i = 0; while (sp->ttis[i].tt_isdst) if (++i >= sp->typecnt) { i = 0; break; } *gmt_off = sp->ttis[i].tt_gmtoff; return; } for (i = 1; i < sp->timecnt; ++i) { if (t < sp->ats[i]) { transition1 = sp->types[i - 1]; transition2 = sp->types[i]; break; } } /* if I found transition times that do not bounded the given time and these correspond to or the bounding zones do not reflect a changes in day light savings, then I do not have dst active */ if (i >= sp->timecnt || 0 > transition1 || 0 > transition2 || (sp->ttis[transition1].tt_isdst == sp->ttis[transition2].tt_isdst)) { *dst_enabled = 0; *gmt_off = sp->ttis[sp->types[sp->timecnt -1]].tt_gmtoff; } else { /* I have valid daylight savings information. */ if(sp->ttis[transition2].tt_isdst) *gmt_off = sp->ttis[transition1].tt_gmtoff; else *gmt_off = sp->ttis[transition2].tt_gmtoff; /* If I adjusted the time earlier, indicate that the dst is invalid */ if (!bounds_exceeded) { *dst_enabled = 1; /* Determine which of the bounds is the start of daylight savings and which is the end */ if(sp->ttis[transition2].tt_isdst) { *dst_start = sp->ats[i]; *dst_end = sp->ats[i -1]; } else { *dst_start = sp->ats[i -1]; *dst_end = sp->ats[i]; } } } return; }
struct ast_tm* ast_localtime | ( | const struct timeval * | timep, |
struct ast_tm * | p_tm, | ||
const char * | zone | ||
) | [read] |
Timezone-independent version of localtime_r(3).
timep | Current time, including microseconds |
p_tm | Pointer to memory where the broken-out time will be stored |
zone | Text string of a standard system zoneinfo file. If NULL, the system localtime will be used. |
p_tm | is returned for convenience |
Definition at line 1306 of file localtime.c.
References ast_tzset(), and localsub().
Referenced by __ast_verbose_ap(), acf_strftime(), action_corestatus(), append_date(), ast_check_timing(), ast_log(), ast_say_date_da(), ast_say_date_de(), ast_say_date_en(), ast_say_date_fr(), ast_say_date_gr(), ast_say_date_he(), ast_say_date_hu(), ast_say_date_ka(), ast_say_date_nl(), ast_say_date_pt(), ast_say_date_th(), ast_say_date_with_format_da(), ast_say_date_with_format_de(), ast_say_date_with_format_en(), ast_say_date_with_format_es(), ast_say_date_with_format_fr(), ast_say_date_with_format_gr(), ast_say_date_with_format_he(), ast_say_date_with_format_it(), ast_say_date_with_format_nl(), ast_say_date_with_format_pl(), ast_say_date_with_format_pt(), ast_say_date_with_format_th(), ast_say_date_with_format_zh(), ast_say_datetime_de(), ast_say_datetime_en(), ast_say_datetime_fr(), ast_say_datetime_from_now_en(), ast_say_datetime_from_now_fr(), ast_say_datetime_from_now_he(), ast_say_datetime_from_now_ka(), ast_say_datetime_from_now_pt(), ast_say_datetime_gr(), ast_say_datetime_he(), ast_say_datetime_hu(), ast_say_datetime_ka(), ast_say_datetime_nl(), ast_say_datetime_pt(), ast_say_datetime_pt_BR(), ast_say_datetime_th(), ast_say_datetime_zh(), ast_say_time_de(), ast_say_time_en(), ast_say_time_fr(), ast_say_time_gr(), ast_say_time_he(), ast_say_time_hu(), ast_say_time_ka(), ast_say_time_nl(), ast_say_time_pt(), ast_say_time_pt_BR(), ast_say_time_th(), ast_say_time_zh(), build_device(), build_radius_record(), callerid_genmsg(), cdr_get_tv(), cli_prompt(), conf_run(), enc_ie_date(), execute_cb(), find_conf_realtime(), format_date(), get_date(), handle_minivm_show_stats(), handle_show_settings(), handle_time_date_req_message(), httpd_helper_thread(), iax2_datetime(), isodate(), leave_voicemail(), main(), make_email_file(), manager_log(), odbc_log(), packdate(), pgsql_log(), phone_call(), phoneprov_callback(), play_message_datetime(), prep_email_sub_vars(), rpt_localtime(), rt_extend_conf(), say_date_generic(), send_date_time(), send_date_time2(), send_date_time3(), sendmail(), set_timezone_variables(), sip_show_registry(), sms_compose2(), sms_handleincoming_proto2(), static_callback(), timeout_write(), transmit_notify_request_with_callerid(), vmu_tm(), write_history(), and write_metadata().
struct timeval ast_mktime | ( | struct ast_tm *const | tmp, |
const char * | zone | ||
) | [read] |
Timezone-independent version of mktime(3).
tmp | Current broken-out time, including microseconds |
zone | Text string of a standard system zoneinfo file. If NULL, the system localtime will be used. |
A | structure containing both seconds and fractional thereof since January 1st, 1970 UTC |
Definition at line 1921 of file localtime.c.
References ast_tzset(), localsub(), and time1().
Referenced by acf_strptime(), conf_run(), find_conf_realtime(), rt_extend_conf(), sms_handleincoming_proto2(), sms_readfile(), and unpackdate().
int ast_strftime | ( | char * | buf, |
size_t | len, | ||
const char * | format, | ||
const struct ast_tm * | tm | ||
) |
Special version of strftime(3) that handles fractions of a second. Takes the same arguments as strftime(3), with the addition of q, which specifies microseconds.
buf | Address in memory where the resulting string will be stored. |
len | Size of the chunk of memory buf. |
format | A string specifying the format of time to be placed into buf. |
tm | Pointer to the broken out time to be used for the format. |
An | integer value specifying the number of bytes placed into buf or -1 on error. |
Definition at line 1929 of file localtime.c.
References ast_calloc, ast_free, ast_realloc, format, and ast_tm::tm_usec.
Referenced by __ast_verbose_ap(), acf_strftime(), action_corestatus(), append_date(), ast_log(), build_radius_record(), cdr_get_tv(), cli_prompt(), conf_run(), dump_datetime(), execute_cb(), find_conf_realtime(), format_date(), get_date(), handle_minivm_show_stats(), handle_show_settings(), httpd_helper_thread(), isodate(), leave_voicemail(), make_email_file(), manager_log(), odbc_log(), pgsql_log(), phoneprov_callback(), prep_email_sub_vars(), rt_extend_conf(), sendmail(), sendpage(), sip_show_registry(), static_callback(), timeout_write(), and write_metadata().
{ size_t fmtlen = strlen(tmp) + 1; char *format = ast_calloc(1, fmtlen), *fptr = format, *newfmt; int decimals = -1, i, res; long fraction; if (!format) return -1; for (; *tmp; tmp++) { if (*tmp == '%') { switch (tmp[1]) { case '1': case '2': case '3': case '4': case '5': case '6': if (tmp[2] != 'q') goto defcase; decimals = tmp[1] - '0'; tmp++; /* Fall through */ case 'q': /* Milliseconds */ if (decimals == -1) decimals = 3; /* Juggle some memory to fit the item */ newfmt = ast_realloc(format, fmtlen + decimals); if (!newfmt) { ast_free(format); return -1; } fptr = fptr - format + newfmt; format = newfmt; fmtlen += decimals; /* Reduce the fraction of time to the accuracy needed */ for (i = 6, fraction = tm->tm_usec; i > decimals; i--) fraction /= 10; fptr += sprintf(fptr, "%0*ld", decimals, fraction); /* Reset, in case more than one 'q' specifier exists */ decimals = -1; tmp++; break; default: goto defcase; } } else defcase: *fptr++ = *tmp; } *fptr = '\0'; #undef strftime res = (int)strftime(buf, len, format, (struct tm *)tm); ast_free(format); return res; }
char* ast_strptime | ( | const char * | s, |
const char * | format, | ||
struct ast_tm * | tm | ||
) |
Special version of strptime(3) which places the answer in the common structure ast_tm. Also, unlike strptime(3), ast_strptime() initializes its memory prior to use.
s | A string specifying some portion of a date and time. |
format | The format in which the string, s, is expected. |
tm | The broken-out time structure into which the parsed data is expected. |
A | pointer to the first character within s not used to parse the date and time. |
Definition at line 1988 of file localtime.c.
References ast_tm::tm_isdst, and ast_tm::tm_usec.
Referenced by acf_strptime(), conf_run(), find_conf_realtime(), and rt_extend_conf().