Initial revisionv1_0_r2r2

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 795 insertions, 0 deletions

diff --git a/time.c b/time.c
new file mode 100644
index 0000000000..b1184fbe98
--- /dev/null
+++ b/time.c
@@ -0,0 +1,795 @@
+/************************************************
+
+  time.c -
+
+  $Author$
+  $Date$
+  created at: Tue Dec 28 14:31:59 JST 1993
+
+  Copyright (C) 1993-1996 Yukihiro Matsumoto
+
+************************************************/
+
+#include "ruby.h"
+#include <sys/types.h>
+
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif
+
+#include <time.h>
+#ifndef NT
+#ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+#else
+struct timeval {
+        long    tv_sec;         /* seconds */
+        long    tv_usec;        /* and microseconds */
+};
+#endif
+#endif /* NT */
+
+#ifdef HAVE_SYS_TIMES_H
+#include <sys/times.h>
+#endif
+#include <math.h>
+
+static VALUE cTime;
+#if defined(HAVE_TIMES) || defined(NT)
+static VALUE S_Tms;
+#endif
+extern VALUE mComparable;
+
+struct time_object {
+    struct timeval tv;
+    struct tm tm;
+#ifndef HAVE_TM_ZONE
+    int gmt;
+#endif
+    int tm_got;
+};
+
+#define GetTimeval(obj, tobj) {\
+    Data_Get_Struct(obj, struct time_object, tobj);\
+}
+
+static VALUE
+time_s_now(class)
+    VALUE class;
+{
+    VALUE obj;
+    struct time_object *tobj;
+
+    obj = Data_Make_Struct(class, struct time_object, 0, 0, tobj);
+    tobj->tm_got=0;
+
+    if (gettimeofday(&(tobj->tv), 0) == -1) {
+	rb_sys_fail("gettimeofday");
+    }
+
+    return obj;
+}
+
+static VALUE
+time_new_internal(class, sec, usec)
+    VALUE class;
+    int sec, usec;
+{
+    VALUE obj;
+    struct time_object *tobj;
+
+    obj = Data_Make_Struct(class, struct time_object, 0, 0, tobj);
+    tobj->tm_got = 0;
+    tobj->tv.tv_sec = sec;
+    tobj->tv.tv_usec = usec;
+
+    return obj;
+}
+
+VALUE
+time_new(sec, usec)
+    int sec, usec;
+{
+    return time_new_internal(cTime, sec, usec);
+}
+
+struct timeval
+time_timeval(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+    struct timeval t;
+
+    switch (TYPE(time)) {
+      case T_FIXNUM:
+	t.tv_sec = FIX2UINT(time);
+	if (t.tv_sec < 0)
+	    ArgError("time must be positive");
+	t.tv_usec = 0;
+	break;
+
+      case T_FLOAT:
+	{
+	    double seconds, microseconds;
+
+	    if (RFLOAT(time)->value < 0.0)
+		ArgError("time must be positive");
+	    seconds = floor(RFLOAT(time)->value);
+	    microseconds = (RFLOAT(time)->value - seconds) * 1000000.0;
+	    t.tv_sec = seconds;
+	    t.tv_usec = microseconds;
+	}
+	break;
+
+      case T_BIGNUM:
+	t.tv_sec = NUM2INT(time);
+	t.tv_usec = 0;
+	break;
+
+      default:
+	if (!obj_is_kind_of(time, cTime)) {
+	    TypeError("Can't convert %s into Time",
+		      rb_class2name(CLASS_OF(time)));
+	}
+	GetTimeval(time, tobj);
+	t = tobj->tv;
+	break;
+    }
+    return t;
+}
+
+static VALUE
+time_s_at(class, time)
+    VALUE class, time;
+{
+    struct timeval tv;
+
+    tv = time_timeval(time);
+    return time_new_internal(class, tv.tv_sec, tv.tv_usec);
+}
+
+static char *months [12] = {
+    "jan", "feb", "mar", "apr", "may", "jun",
+    "jul", "aug", "sep", "oct", "nov", "dec",
+};
+
+static void
+time_arg(argc, argv, args)
+    int argc;
+    VALUE *argv;
+    int *args;
+{
+    VALUE v[6];
+    int i;
+
+    rb_scan_args(argc, argv, "15", &v[0], &v[1], &v[2], &v[3], &v[4], &v[5]);
+
+    args[0] = NUM2INT(v[0]);
+    if (args[0] < 70) args[0] += 100;
+    if (args[0] > 1900) args[0] -= 1900;
+    if (v[1] == Qnil) {
+	args[1] = 0;
+    }
+    else if (TYPE(v[1]) == T_STRING) {
+	args[1] = -1;
+	for (i=0; i<12; i++) {
+	    if (strcasecmp(months[i], RSTRING(v[1])->ptr) == 0) {
+		args[1] = i;
+		break;
+	    }
+	}
+	if (args[1] == -1) {
+	    char c = RSTRING(v[1])->ptr[0];
+
+	    if ('0' <= c && c <= '9') {
+		args[1] = NUM2INT(v[1])-1;
+	    }
+	}
+    }
+    else {
+	args[1] = NUM2INT(v[1]);
+    }
+    if (v[2] == Qnil) {
+	args[2] = 1;
+    }
+    else {
+	args[2] = NUM2INT(v[2]);
+    }
+    for (i=3;i<6;i++) {
+	if (v[i] == Qnil) {
+	    args[i] = 0;
+	}
+	else {
+	    args[i] = NUM2INT(v[i]);
+	}
+    }
+
+    /* value validation */
+    if (   args[0] < 70|| args[1] > 137
+	|| args[1] < 0 || args[1] > 11
+	|| args[2] < 1 || args[2] > 31
+	|| args[3] < 0 || args[3] > 23
+	|| args[4] < 0 || args[4] > 60
+	|| args[5] < 0 || args[5] > 61)
+	ArgError("argument out of range");
+}
+
+static VALUE
+time_gm_or_local(argc, argv, gm_or_local, class)
+    int argc;
+    VALUE *argv;
+    int gm_or_local;
+    VALUE class;
+{
+    int args[6];
+    struct timeval tv;
+    struct tm *tm;
+    time_t guess, t;
+    int diff;
+    struct tm *(*fn)();
+
+    fn = (gm_or_local) ? gmtime : localtime;
+    time_arg(argc, argv, args);
+
+    gettimeofday(&tv, 0);
+    guess = tv.tv_sec;
+
+    tm = (*fn)(&guess);
+    if (!tm) goto error;
+    t = args[0];
+    while (diff = t - tm->tm_year) {
+	guess += diff * 364 * 24 * 3600;
+	if (guess < 0) ArgError("too far future");
+	tm = (*fn)(&guess);
+	if (!tm) goto error;
+    }
+    t = args[1];
+    while (diff = t - tm->tm_mon) {
+	guess += diff * 27 * 24 * 3600;
+	tm = (*fn)(&guess);
+	if (!tm) goto error;
+    }
+    guess += (args[2] - tm->tm_mday) * 3600 * 24;
+    guess += (args[3] - tm->tm_hour) * 3600;
+    guess += (args[4] - tm->tm_min) * 60;
+    guess += args[5] - tm->tm_sec;
+
+    return time_new_internal(class, guess, 0);
+
+  error:
+    ArgError("gmtime error");
+}
+
+static VALUE
+time_s_timegm(argc, argv, class)
+    int argc;
+    VALUE *argv;
+    VALUE class;
+{
+    return time_gm_or_local(argc, argv, 1, class);
+}
+
+static VALUE
+time_s_timelocal(argc, argv, class)
+    int argc;
+    VALUE *argv;
+    VALUE class;
+{
+    return time_gm_or_local(argc, argv, 0, class);
+}
+
+static VALUE
+time_to_i(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+
+    GetTimeval(time, tobj);
+    return int2inum(tobj->tv.tv_sec);
+}
+
+static VALUE
+time_to_f(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+
+    GetTimeval(time, tobj);
+    return float_new((double)tobj->tv.tv_sec+(double)tobj->tv.tv_usec/1000000);
+}
+
+static VALUE
+time_usec(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+
+    GetTimeval(time, tobj);
+    return INT2FIX(tobj->tv.tv_usec);
+}
+
+static VALUE
+time_cmp(time1, time2)
+    VALUE time1, time2;
+{
+    struct time_object *tobj1, *tobj2;
+    int i;
+
+    GetTimeval(time1, tobj1);
+    switch (TYPE(time2)) {
+      case T_FIXNUM:
+	i = FIX2INT(time2);
+	if (tobj1->tv.tv_sec == i) return INT2FIX(0);
+	if (tobj1->tv.tv_sec > i) return INT2FIX(1);
+	return FIX2INT(-1);
+	
+      case T_FLOAT:
+	{
+	    double t;
+
+	    if (tobj1->tv.tv_sec == (int)RFLOAT(time2)->value) return INT2FIX(0);
+	    t = (double)tobj1->tv.tv_sec + (double)tobj1->tv.tv_usec*1e-6;
+	    if (tobj1->tv.tv_sec == RFLOAT(time2)->value) return INT2FIX(0);
+	    if (tobj1->tv.tv_sec > RFLOAT(time2)->value) return INT2FIX(1);
+	    return FIX2INT(-1);
+	}
+    }
+
+    if (obj_is_instance_of(time2, cTime)) {
+	GetTimeval(time2, tobj2);
+	if (tobj1->tv.tv_sec == tobj2->tv.tv_sec) {
+	    if (tobj1->tv.tv_usec == tobj2->tv.tv_usec) return INT2FIX(0);
+	    if (tobj1->tv.tv_usec > tobj2->tv.tv_usec) return INT2FIX(1);
+	    return FIX2INT(-1);
+	}
+	if (tobj1->tv.tv_sec > tobj2->tv.tv_sec) return INT2FIX(1);
+	return FIX2INT(-1);
+    }
+    i = NUM2INT(time2);
+    if (tobj1->tv.tv_sec == i) return INT2FIX(0);
+    if (tobj1->tv.tv_sec > i) return INT2FIX(1);
+    return FIX2INT(-1);
+}
+
+static VALUE
+time_eql(time1, time2)
+    VALUE time1, time2;
+{
+    struct time_object *tobj1, *tobj2;
+
+    GetTimeval(time1, tobj1);
+    if (obj_is_instance_of(time2, cTime)) {
+	GetTimeval(time2, tobj2);
+	if (tobj1->tv.tv_sec == tobj2->tv.tv_sec) {
+	    if (tobj1->tv.tv_usec == tobj2->tv.tv_usec) return TRUE;
+	}
+    }
+    return FALSE;
+}
+
+static VALUE
+time_hash(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+    int hash;
+
+    GetTimeval(time, tobj);
+    hash = tobj->tv.tv_sec ^ tobj->tv.tv_usec;
+    return INT2FIX(hash);
+}
+
+static VALUE
+time_localtime(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+    struct tm *tm_tmp;
+
+    GetTimeval(time, tobj);
+    tm_tmp = localtime((const time_t*)&tobj->tv.tv_sec);
+    tobj->tm = *tm_tmp;
+    tobj->tm_got = 1;
+#ifndef HAVE_TM_ZONE
+    tobj->gmt = 0;
+#endif
+    return time;
+}
+
+static VALUE
+time_gmtime(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+    struct tm *tm_tmp;
+
+    GetTimeval(time, tobj);
+    tm_tmp = gmtime((const time_t*)&tobj->tv.tv_sec);
+    tobj->tm = *tm_tmp;
+    tobj->tm_got = 1;
+#ifndef HAVE_TM_ZONE
+    tobj->gmt = 1;
+#endif
+    return time;
+}
+
+static VALUE
+time_asctime(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+    char buf[64];
+    int len;
+
+    GetTimeval(time, tobj);
+    if (tobj->tm_got == 0) {
+	time_localtime(time);
+    }
+#ifndef HAVE_TM_ZONE
+    if (tobj->gmt == 1) {
+	len = strftime(buf, 64, "%a %b %d %H:%M:%S GMT %Y", &(tobj->tm));
+    }
+    else
+#endif
+    {
+	len = strftime(buf, 64, "%a %b %d %H:%M:%S %Z %Y", &(tobj->tm));
+    }
+    return str_new(buf, len);
+}
+
+static VALUE
+time_coerce(time1, time2)
+    VALUE time1, time2;
+{
+    if (TYPE(time2) == T_FLOAT) {
+	double d = RFLOAT(time2)->value;
+	unsigned int i = (unsigned int) d;
+
+	return assoc_new(time_new(i, (int)((d - (double)i)*1e6)),time1);
+    }
+
+    return assoc_new(time_new(NUM2INT(time2), 0), time1);
+}
+
+static VALUE
+time_plus(time1, time2)
+    VALUE time1, time2;
+{
+    struct time_object *tobj1, *tobj2;
+    int sec, usec;
+
+    GetTimeval(time1, tobj1);
+    if (TYPE(time2) == T_FLOAT) {
+	unsigned int nsec = (unsigned int)RFLOAT(time2)->value;
+	sec = tobj1->tv.tv_sec + nsec;
+	usec = tobj1->tv.tv_usec + (RFLOAT(time2)->value - (double)nsec)*1e6;
+    }
+    else if (obj_is_instance_of(time2, cTime)) {
+	GetTimeval(time2, tobj2);
+	sec = tobj1->tv.tv_sec + tobj2->tv.tv_sec;
+	usec = tobj1->tv.tv_usec + tobj2->tv.tv_usec;
+    }
+    else {
+	sec = tobj1->tv.tv_sec + NUM2INT(time2);
+	usec = tobj1->tv.tv_usec;
+    }
+
+    if (usec >= 1000000) {	/* usec overflow */
+	sec++;
+	usec -= 1000000;
+    }
+    return time_new(sec, usec);
+}
+
+static VALUE
+time_minus(time1, time2)
+    VALUE time1, time2;
+{
+    struct time_object *tobj1, *tobj2;
+    int sec, usec;
+
+    GetTimeval(time1, tobj1);
+    if (obj_is_instance_of(time2, cTime)) {
+	double f;
+
+	GetTimeval(time2, tobj2);
+	f = tobj1->tv.tv_sec - tobj2->tv.tv_sec;
+
+	f += (tobj1->tv.tv_usec - tobj2->tv.tv_usec)*1e-6;
+
+	return float_new(f);
+    }
+    else if (TYPE(time2) == T_FLOAT) {
+	sec = tobj1->tv.tv_sec - (int)RFLOAT(time2)->value;
+	usec = tobj1->tv.tv_usec - (RFLOAT(time2)->value - (double)sec)*1e6;
+    }
+    else {
+	sec = tobj1->tv.tv_sec - NUM2INT(time2);
+	usec = tobj1->tv.tv_usec;
+    }
+
+    if (usec < 0) {		/* usec underflow */
+	sec--;
+	usec += 1000000;
+    }
+    return time_new(sec, usec);
+}
+
+static VALUE
+time_sec(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+
+    GetTimeval(time, tobj);
+    if (tobj->tm_got == 0) {
+	time_localtime(time);
+    }
+    return INT2FIX(tobj->tm.tm_sec);
+}
+
+static VALUE
+time_min(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+
+    GetTimeval(time, tobj);
+    if (tobj->tm_got == 0) {
+	time_localtime(time);
+    }
+    return INT2FIX(tobj->tm.tm_min);
+}
+
+static VALUE
+time_hour(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+
+    GetTimeval(time, tobj);
+    if (tobj->tm_got == 0) {
+	time_localtime(time);
+    }
+    return INT2FIX(tobj->tm.tm_hour);
+}
+
+static VALUE
+time_mday(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+
+    GetTimeval(time, tobj);
+    if (tobj->tm_got == 0) {
+	time_localtime(time);
+    }
+    return INT2FIX(tobj->tm.tm_mday);
+}
+
+static VALUE
+time_mon(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+
+    GetTimeval(time, tobj);
+    if (tobj->tm_got == 0) {
+	time_localtime(time);
+    }
+    return INT2FIX(tobj->tm.tm_mon);
+}
+
+static VALUE
+time_year(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+
+    GetTimeval(time, tobj);
+    if (tobj->tm_got == 0) {
+	time_localtime(time);
+    }
+    return INT2FIX(tobj->tm.tm_year);
+}
+
+static VALUE
+time_wday(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+
+    GetTimeval(time, tobj);
+    if (tobj->tm_got == 0) {
+	time_localtime(time);
+    }
+    return INT2FIX(tobj->tm.tm_wday);
+}
+
+static VALUE
+time_yday(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+
+    GetTimeval(time, tobj);
+    if (tobj->tm_got == 0) {
+	time_localtime(time);
+    }
+    return INT2FIX(tobj->tm.tm_yday);
+}
+
+static VALUE
+time_isdst(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+
+    GetTimeval(time, tobj);
+    if (tobj->tm_got == 0) {
+	time_localtime(time);
+    }
+    return INT2FIX(tobj->tm.tm_isdst);
+}
+
+static VALUE
+time_zone(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+    char buf[10];
+    int len;
+
+    GetTimeval(time, tobj);
+    if (tobj->tm_got == 0) {
+	time_localtime(time);
+    }
+
+    len = strftime(buf, 10, "%Z", &(tobj->tm));
+    return str_new(buf, len);
+}
+
+static VALUE
+time_to_a(time)
+    VALUE time;
+{
+    struct time_object *tobj;
+    VALUE ary;
+
+    GetTimeval(time, tobj);
+    if (tobj->tm_got == 0) {
+	time_localtime(time);
+    }
+    ary = ary_new3(9,
+		   INT2FIX(tobj->tm.tm_sec),
+		   INT2FIX(tobj->tm.tm_min),
+		   INT2FIX(tobj->tm.tm_hour),
+		   INT2FIX(tobj->tm.tm_mday),
+		   INT2FIX(tobj->tm.tm_mon),
+		   INT2FIX(tobj->tm.tm_year),
+		   INT2FIX(tobj->tm.tm_wday),
+		   INT2FIX(tobj->tm.tm_yday),
+		   INT2FIX(tobj->tm.tm_isdst));
+    return ary;
+}
+
+static VALUE
+time_strftime(time, format)
+    VALUE time, format;
+{
+    struct time_object *tobj;
+    char buf[100];
+    int len;
+
+    Check_Type(format, T_STRING);
+    GetTimeval(time, tobj);
+    if (tobj->tm_got == 0) {
+	time_localtime(time);
+    }
+    if (strlen(RSTRING(format)->ptr) < RSTRING(format)->len) {
+	/* Ruby string contains \0. */
+	VALUE str;
+	int l;
+	char *p = RSTRING(format)->ptr, *pe = p + RSTRING(format)->len;
+
+	str = str_new(0, 0);
+	while (p < pe) {
+	    len = strftime(buf, 100, p, &(tobj->tm));
+	    str_cat(str, buf, len);
+	    l = strlen(p);
+	    p += l + 1;
+	}
+	return str;
+    }
+    len = strftime(buf, 100, RSTRING(format)->ptr, &(tobj->tm));
+    return str_new(buf, len);
+}
+
+static VALUE
+time_s_times(obj)
+    VALUE obj;
+{
+#ifdef HAVE_TIMES
+#ifndef HZ
+#define HZ 60 /* Universal constant :-) */
+#endif /* HZ */
+    struct tms buf;
+
+    if (times(&buf) == -1) rb_sys_fail(0);
+    return struct_new(S_Tms,
+		      float_new((double)buf.tms_utime / HZ),
+		      float_new((double)buf.tms_stime / HZ),
+		      float_new((double)buf.tms_cutime / HZ),
+		      float_new((double)buf.tms_cstime / HZ));
+#else
+#ifdef NT
+    FILETIME create, exit, kernel, user;
+    HANDLE hProc;
+
+    hProc = GetCurrentProcess();
+    GetProcessTimes(hProc,&create, &exit, &kernel, &user);
+    return struct_new(S_Tms,
+      float_new((double)(kernel.dwHighDateTime*2e32+kernel.dwLowDateTime)/2e6),
+      float_new((double)(user.dwHighDateTime*2e32+user.dwLowDateTime)/2e6),
+      float_new((double)0),
+      float_new((double)0));
+#else
+    rb_notimplement();
+#endif
+#endif
+}
+
+void
+Init_Time()
+{
+    cTime = rb_define_class("Time", cObject);
+    rb_include_module(cTime, mComparable);
+
+    rb_define_singleton_method(cTime, "now", time_s_now, 0);
+    rb_define_singleton_method(cTime, "new", time_s_now, 0);
+    rb_define_singleton_method(cTime, "at", time_s_at, 1);
+    rb_define_singleton_method(cTime, "gm", time_s_timegm, -1);
+    rb_define_singleton_method(cTime, "local", time_s_timelocal, -1);
+    rb_define_singleton_method(cTime, "mktime", time_s_timelocal, -1);
+
+    rb_define_singleton_method(cTime, "times", time_s_times, 0);
+
+    rb_define_method(cTime, "to_i", time_to_i, 0);
+    rb_define_method(cTime, "to_f", time_to_f, 0);
+    rb_define_method(cTime, "<=>", time_cmp, 1);
+    rb_define_method(cTime, "eql?", time_eql, 0);
+    rb_define_method(cTime, "hash", time_hash, 0);
+
+    rb_define_method(cTime, "localtime", time_localtime, 0);
+    rb_define_method(cTime, "gmtime", time_gmtime, 0);
+    rb_define_method(cTime, "ctime", time_asctime, 0);
+    rb_define_method(cTime, "asctime", time_asctime, 0);
+    rb_define_method(cTime, "to_s", time_asctime, 0);
+    rb_define_method(cTime, "inspect", time_asctime, 0);
+    rb_define_method(cTime, "to_a", time_to_a, 0);
+    rb_define_method(cTime, "coerce", time_coerce, 1);
+
+    rb_define_method(cTime, "+", time_plus, 1);
+    rb_define_method(cTime, "-", time_minus, 1);
+
+    rb_define_method(cTime, "sec", time_sec, 0);
+    rb_define_method(cTime, "min", time_min, 0);
+    rb_define_method(cTime, "hour", time_hour, 0);
+    rb_define_method(cTime, "mday", time_mday, 0);
+    rb_define_method(cTime, "mon", time_mon, 0);
+    rb_define_method(cTime, "year", time_year, 0);
+    rb_define_method(cTime, "wday", time_wday, 0);
+    rb_define_method(cTime, "yday", time_yday, 0);
+    rb_define_method(cTime, "isdst", time_isdst, 0);
+    rb_define_method(cTime, "zone", time_zone, 0);
+
+    rb_define_method(cTime, "tv_sec", time_to_i, 0);
+    rb_define_method(cTime, "tv_usec", time_usec, 0);
+    rb_define_method(cTime, "usec", time_usec, 0);
+
+    rb_define_method(cTime, "strftime", time_strftime, 1);
+
+#if defined(HAVE_TIMES) || defined(NT)
+    S_Tms = struct_define("Tms", "utime", "stime", "cutime", "cstime", 0);
+#endif
+}