[ViewVC] Diff of: cvs/deliantra/server/common/utils.C

Comparing deliantra/server/common/utils.C (file contents):
Revision 1.47 by root, Wed Feb 7 02:04:46 2007 UTC vs.
Revision 1.54 by root, Fri Apr 27 20:06:37 2007 UTC

…		…
42	rand_gen rndm;	42	rand_gen rndm;
43		43
44	void	44	void
45	tausworthe_random_generator::seed (uint32_t seed)	45	tausworthe_random_generator::seed (uint32_t seed)
46	{	46	{
47	state [0] = max ( 2U, seed * 69069U);	47	state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U;
48	state [1] = max ( 8U, state [0] * 69069U);	48	state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U;
49	state [2] = max ( 16U, state [1] * 69069U);	49	state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U;
50	state [3] = max (128U, state [2] * 69069U);	50	state [3] = state [2] * 69069U; if (state [0] < 128) state [0] += 128U;
51		51
52	for (int i = 11; --i; )	52	for (int i = 11; --i; )
53	operator ()();	53	operator ()();
54	}	54	}
55		55
…		…
63		63
64	return state [0] ^ state [1] ^ state [2] ^ state [3];	64	return state [0] ^ state [1] ^ state [2] ^ state [3];
65	}	65	}
66		66
67	uint32_t	67	uint32_t
68	tausworthe_random_generator::get_range (uint32_t r_max)	68	tausworthe_random_generator::get_range (uint32_t num)
69	{	69	{
70	return next () % r_max;	70	return (next () * (uint64_t)num) >> 32U;
71	}	71	}
72		72
73	// return a number within (min .. max)	73	// return a number within (min .. max)
74	int	74	int
75	tausworthe_random_generator::get_range (int r_min, int r_max)	75	tausworthe_random_generator::get_range (int r_min, int r_max)
76	{	76	{
77	return r_min + (*this) (max (r_max - r_min + 1, 1));	77	return r_min + get_range (max (r_max - r_min + 1, 0));
78	}	78	}
79		79
80	/*	80	/*
81	* The random functions here take luck into account when rolling random	81	* The random functions here take luck into account when rolling random
82	* dice or numbers. This function has less of an impact the larger the	82	* dice or numbers. This function has less of an impact the larger the
…		…
97	{	97	{
98	int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */	98	int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
99		99
100	if (r_max < 1 \|\| r_max < r_min)	100	if (r_max < 1 \|\| r_max < r_min)
101	{	101	{
102	LOG (llevError, "Calling random_roll with min=%d max=%d\n", r_min, r_max);	102	LOG (llevError \| logBacktrace, "Calling random_roll with min=%d max=%d\n", r_min, r_max);
103	return r_min;	103	return r_min;
104	}	104	}
105		105
106	if (op->type == PLAYER)	106	if (op->type == PLAYER)
107	{	107	{
…		…
130	diff = max - min + 1;	130	diff = max - min + 1;
131	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */	131	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
132		132
133	if (max < 1 \|\| diff < 1)	133	if (max < 1 \|\| diff < 1)
134	{	134	{
135	LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max);	135	LOG (llevError \| logBacktrace, "Calling random_roll64 with min=%" PRId64 " max=%" PRId64 "\n", min, max);
136	return (min); /* avoids a float exception */	136	return (min); /* avoids a float exception */
137	}	137	}
138		138
139	/*	139	/*
140	* Make a call to get two 32 bit unsigned random numbers, and just to	140	* Make a call to get two 32 bit unsigned random numbers, and just to
…		…
553	fork_abort (const char *msg)	553	fork_abort (const char *msg)
554	{	554	{
555	if (!fork ())	555	if (!fork ())
556	{	556	{
557	signal (SIGABRT, SIG_DFL);	557	signal (SIGABRT, SIG_DFL);
		558	// try to put corefiles into a subdirectory, if existing, to allow
		559	// an administrator to reduce the I/O load.
		560	chdir ("cores");
558	abort ();	561	abort ();
559	}	562	}
560		563
561	LOG (llevError, "fork abort: %s\n", msg);	564	LOG (llevError, "fork abort: %s\n", msg);
562	}	565	}
…		…
609	}	612	}
610	else	613	else
611	memcpy (dst, src, len + 1);	614	memcpy (dst, src, len + 1);
612	}	615	}
613		616
		617	const std::string
		618	format (const char *format, ...)
		619	{
		620	int len;
		621
		622	{
		623	char buf[128];
		624
		625	va_list ap;
		626	va_start (ap, format);
		627	len = vsnprintf (buf, sizeof (buf), format, ap);
		628	va_end (ap);
		629
		630	assert (len >= 0); // shield againstz broken vsnprintf's
		631
		632	// was our static buffer short enough?
		633	if (len < sizeof (buf))
		634	return std::string (buf, len);
		635	}
		636
		637	{
		638	// longer, try harder
		639	char *buf = salloc<char> (len + 1);
		640
		641	va_list ap;
		642	va_start (ap, format);
		643	vsnprintf (buf, len + 1, format, ap);
		644	va_end (ap);
		645
		646	const std::string s (buf, len);
		647	sfree<char> (buf, len + 1);
		648
		649	return buf;
		650	}
		651	}
		652
614	tstamp now ()	653	tstamp now ()
615	{	654	{
616	struct timeval tv;	655	struct timeval tv;
617		656
618	gettimeofday (&tv, 0);	657	gettimeofday (&tv, 0);
…		…
627		666
628	int diff = (b - a) & 7;	667	int diff = (b - a) & 7;
629	return diff <= 1 \|\| diff >= 7;	668	return diff <= 1 \|\| diff >= 7;
630	}	669	}
631		670
		671	/* crc32 0xdebb20e3 table and supplementary functions. */
		672	extern const uint32_t crc_32_tab[256] =
		673	{
		674	0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
		675	0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
		676	0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
		677	0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
		678	0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
		679	0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
		680	0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
		681	0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
		682	0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
		683	0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
		684	0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
		685	0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
		686	0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
		687	0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
		688	0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
		689	0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
		690	0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
		691	0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
		692	0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
		693	0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
		694	0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
		695	0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
		696	0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
		697	0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
		698	0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
		699	0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
		700	0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
		701	0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
		702	0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
		703	0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
		704	0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
		705	0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
		706	0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
		707	0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
		708	0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
		709	0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
		710	0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
		711	0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
		712	0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
		713	0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
		714	0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
		715	0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
		716	0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
		717	0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
		718	0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
		719	0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
		720	0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
		721	0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
		722	0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
		723	0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
		724	0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
		725	0x2d02ef8dL
		726	};
		727
		728

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Comparing deliantra/server/common/utils.C (file contents): Revision 1.47 by root, Wed Feb 7 02:04:46 2007 UTC vs. Revision 1.54 by root, Fri Apr 27 20:06:37 2007 UTC

Diff Legend

Comparing deliantra/server/common/utils.C (file contents):
Revision 1.47 by root, Wed Feb 7 02:04:46 2007 UTC vs.
Revision 1.54 by root, Fri Apr 27 20:06:37 2007 UTC