diff options
Diffstat (limited to 'src/library.js')
| -rw-r--r-- | src/library.js | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/src/library.js b/src/library.js index 9572ed89..ffd10c3f 100644 --- a/src/library.js +++ b/src/library.js @@ -1694,7 +1694,14 @@ var Library = { return 0; // NULL }, + // ========================================================================== // time.h + // ========================================================================== + + clock: function() { + if (_clock.start === undefined) _clock.start = new Date(); + return (_clock.start.getTime() - Date.now())*1000; + }, time: function(ptr) { var ret = Math.floor(Date.now()/1000); @@ -1704,6 +1711,197 @@ var Library = { return ret; }, + difftime: function(time1, time0) { + return time1 - time0; + }, + + __tm_struct_layout: Runtime.generateStructInfo([ + ['i32', 'tm_sec'], + ['i32', 'tm_min'], + ['i32', 'tm_hour'], + ['i32', 'tm_mday'], + ['i32', 'tm_mon'], + ['i32', 'tm_year'], + ['i32', 'tm_wday'], + ['i32', 'tm_yday'], + ['i32', 'tm_isdst'], + ['i32', 'tm_gmtoff'], + ['i8*', 'tm_zone'], + ]), + // Statically allocated time struct. + __tm_current: 0, + // Statically allocated timezone strings. + __tm_timezones: {}, + // Statically allocated time string strings. + __tm_formatted: 0, + + mktime__deps: ['__tm_struct_layout', 'tzset'], + mktime: function(tm_ptr) { + _tzset(); + var year = {{{ makeGetValue('tm_ptr', '___tm_struct_layout.tm_year', 'i32') }}}; + var timestamp = new Date(year >= 1900 ? year : year + 1900, + {{{ makeGetValue('tm_ptr', '___tm_struct_layout.tm_mon', 'i32') }}}, + {{{ makeGetValue('tm_ptr', '___tm_struct_layout.tm_mday', 'i32') }}}, + {{{ makeGetValue('tm_ptr', '___tm_struct_layout.tm_hour', 'i32') }}}, + {{{ makeGetValue('tm_ptr', '___tm_struct_layout.tm_min', 'i32') }}}, + {{{ makeGetValue('tm_ptr', '___tm_struct_layout.tm_sec', 'i32') }}}, + 0).getTime() / 1000; + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_wday', 'new Date(timestamp).getDay()', 'i32') }}} + var yday = Math.round((timestamp - (new Date(year, 0, 1)).getTime()) / (1000 * 60 * 60 * 24)); + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_yday', 'yday', 'i32') }}} + return timestamp; + }, + timelocal: 'mktime', + + gmtime__deps: ['malloc', '__tm_struct_layout', '__tm_current', 'gmtime_r'], + gmtime: function(time) { + if (!___tm_current) ___tm_current = _malloc(___tm_struct_layout.__size__); + return _gmtime_r(time, ___tm_current); + }, + + gmtime_r__deps: ['__tm_struct_layout', '__tm_timezones'], + gmtime_r: function(time, tm_ptr) { + var date = new Date({{{ makeGetValue('time', 0, 'i32') }}}*1000); + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_sec', 'date.getUTCSeconds()', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_min', 'date.getUTCMinutes()', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_hour', 'date.getUTCHours()', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_mday', 'date.getUTCDate()', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_mon', 'date.getUTCMonth()', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_year', 'date.getUTCFullYear()-1900', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_wday', 'date.getUTCDay()', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_gmtoff', '0', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_isdst', '0', 'i32') }}} + + var start = new Date(date.getFullYear(), 0, 1); + var yday = Math.round((date.getTime() - start.getTime()) / (1000 * 60 * 60 * 24)); + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_yday', 'yday', 'i32') }}} + + var timezone = "GMT"; + if (!(timezone in ___tm_timezones)) { + ___tm_timezones[timezone] = Pointer_make(intArrayFromString(timezone), null, ALLOC_NORMAL, 'i8'); + } + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_zone', '___tm_timezones[timezone]', 'i32') }}} + + return tm_ptr; + }, + + timegm__deps: ['__tm_struct_layout', 'mktime'], + timegm: function(tm_ptr) { + _tzset(); + var offset = {{{ makeGetValue('_timezone', 0, 'i32') }}}; + var daylight = {{{ makeGetValue('_daylight', 0, 'i32') }}}; + daylight = (daylight == 1) ? 60 * 60 : 0; + var ret = _mktime(tm_ptr) - (offset + daylight); + return ret; + }, + + localtime__deps: ['malloc', '__tm_struct_layout', '__tm_current', 'localtime_r'], + localtime: function(time) { + if (!___tm_current) ___tm_current = _malloc(___tm_struct_layout.__size__); + return _localtime_r(time, ___tm_current); + }, + + localtime_r__deps: ['__tm_struct_layout', '__tm_timezones', 'tzset'], + localtime_r: function(time, tm_ptr) { + _tzset(); + var date = new Date({{{ makeGetValue('time', 0, 'i32') }}}*1000); + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_sec', 'date.getSeconds()', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_min', 'date.getMinutes()', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_hour', 'date.getHours()', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_mday', 'date.getDate()', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_mon', 'date.getMonth()', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_year', 'date.getFullYear()-1900', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_wday', 'date.getDay()', 'i32') }}} + + var start = new Date(date.getFullYear(), 0, 1); + var yday = Math.floor((date.getTime() - start.getTime()) / (1000 * 60 * 60 * 24)); + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_yday', 'yday', 'i32') }}} + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_gmtoff', '-start.getTimezoneOffset() * 60', 'i32') }}} + + var dst = Number(start.getTimezoneOffset() != date.getTimezoneOffset()); + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_isdst', 'dst', 'i32') }}} + + var timezone = date.toString().match(/\(([A-Z]+)\)/)[1]; + if (!(timezone in ___tm_timezones)) { + ___tm_timezones[timezone] = Pointer_make(intArrayFromString(timezone), null, ALLOC_NORMAL, 'i8'); + } + {{{ makeSetValue('tm_ptr', '___tm_struct_layout.tm_zone', '___tm_timezones[timezone]', 'i32') }}} + + return tm_ptr; + }, + + asctime__deps: ['malloc', '__tm_formatted', 'asctime_r'], + asctime: function(tm_ptr) { + if (!___tm_formatted) ___tm_formatted = _malloc(26); + return _asctime_r(tm_ptr, ___tm_formatted); + }, + + asctime_r__deps: ['__tm_formatted', 'mktime'], + asctime_r: function(tm_ptr, buf) { + var date = new Date(_mktime(tm_ptr)*1000); + var formatted = date.toString(); + var datePart = formatted.replace(/\d{4}.*/, '').replace(/ 0/, ' '); + var timePart = formatted.match(/\d{2}:\d{2}:\d{2}/)[0]; + formatted = datePart + timePart + ' ' + date.getFullYear() + '\n'; + formatted.split('').forEach(function(chr, index) { + {{{ makeSetValue('buf', 'index', 'chr.charCodeAt(0)', 'i8') }}} + }); + {{{ makeSetValue('buf', '25', '0', 'i8') }}} + return buf; + }, + + ctime__deps: ['localtime', 'asctime'], + ctime: function(timer) { + return _asctime(_localtime(timer)); + }, + + ctime_r__deps: ['localtime', 'asctime'], + ctime_r: function(timer, buf) { + return _asctime_r(_localtime_r(timer, ___tm_current), buf); + }, + + dysize: function(year) { + var leap = ((year % 4 == 0) && ((year % 100 != 0) || (year % 400 == 0))); + return leap ? 366 : 365; + }, + + // TODO: Initialize these to defaults on startup. + tzname: null, + daylight: null, + timezone: null, + tzset__deps: ['malloc', 'tzname', 'daylight', 'timezone'], + tzset: function() { + // TODO: Use (malleable) environment variables instead. + if (_tzname !== null) return; + + _timezone = _malloc(QUANTUM_SIZE); + {{{ makeSetValue('_timezone', '0', '(new Date()).getTimezoneOffset() * 60', 'i32') }}} + + _daylight = _malloc(QUANTUM_SIZE); + var winter = new Date(2000, 0, 1); + var summer = new Date(2000, 6, 1); + {{{ makeSetValue('_daylight', '0', 'Number(winter.getTimezoneOffset() != summer.getTimezoneOffset())', 'i32') }}} + + var winterName = winter.toString().match(/\(([A-Z]+)\)/)[1]; + var summerName = summer.toString().match(/\(([A-Z]+)\)/)[1]; + var winterNamePtr = Pointer_make(intArrayFromString(winterName), null, ALLOC_NORMAL, 'i8'); + var summerNamePtr = Pointer_make(intArrayFromString(summerName), null, ALLOC_NORMAL, 'i8'); + _tzname = _malloc(2 * QUANTUM_SIZE); + {{{ makeSetValue('_tzname', '0', 'winterNamePtr', 'i32') }}} + {{{ makeSetValue('_tzname', QUANTUM_SIZE, 'summerNamePtr', 'i32') }}} + }, + + stime: function(when) { + // TODO: Set errno. + return -1; + }, + + // TODO: Implement strftime(), strptime() and getdate(). + + // ========================================================================== + // sys/time.h + // ========================================================================== + gettimeofday: function(ptr) { // %struct.timeval = type { i32, i32 } var indexes = Runtime.calculateStructAlignment({ fields: ['i32', 'i32'] }); |