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/* $Revision: 1.3.4.1 $
**
** Here be some useful macros.
*/
/*
** Memory allocation. Wrappers around wrapper functions.
** Don't replace any existing definitions, for use with malloc-debug
** packages, e.g.
*/
#if defined(_DEBUG_MALLOC_INC)
#undef _DEBUG_MALLOC_INC
#include "malloc.h"
#else
#define malloc_enter(func)
#define malloc_leave(func)
#define malloc_chain_check()
#define malloc_dump(fd)
#define malloc_list(a,b,c)
#define malloc_size(hist) (*(hist) = 0, 0)
#endif /* defined(_DEBUG_MALLOC_INC) */
#if !defined(NEW)
#define NEW(T, c) \
((T *)xmalloc((unsigned int)(sizeof (T) * (c)), __FILE__, __LINE__))
#define RENEW(p, T, c) \
(p = (T *)xrealloc((char *)(p), (unsigned int)(sizeof (T) * (c)), \
__FILE__, __LINE__))
/* =()<#define DISPOSE(p) free((@<POINTER>@ *)p)>()= */
#define DISPOSE(p) free((void *)p)
/* This properly belongs in libinn.h. */
extern int (*xmemfailure)();
#define ONALLOCFAIL(func) (xmemfailure = (func))
#endif /* !defined(NEW) */
/*
** Copy a string to allocated memory.
*/
#define COPY(p) \
strcpy(NEW(char, strlen(p) + 1), p)
/*
** Wrappers around str[n]cmp. Don't add the ((a) == (b)) test here; it's
** already been done in places where it's time-critical.
*/
#define EQ(a, b) (strcmp((a), (b)) == 0)
#define EQn(a, b, n) (strncmp((a), (b), (SIZE_T)(n)) == 0)
#define caseEQ(a, b) (strcasecmp((a), (b)) == 0)
#define caseEQn(a, b, n) (strncasecmp((a), (b), (SIZE_T)(n)) == 0)
/*
** Cast a pointer into another point, but keep lint quiet.
*/
#if !defined(lint)
#define CAST(t, p) ((t)(p))
#else
#define CAST(t, p) ((p) ? (t)NULL : (t)NULL)
#endif /* !defined(lint) */
/*
** <ctype.h> usually includes \n, which is not what we want.
*/
#define ISWHITE(c) ((c) == ' ' || (c) == '\t')
/*
** Get the number of elements in a fixed-size array, or a pointer just
** past the end of it.
*/
#define SIZEOF(array) ((int)(sizeof array / sizeof array[0]))
#define ENDOF(array) (&array[SIZEOF(array)])
/*
** Get the length of a string constant.
*/
#define STRLEN(string) ((int)(sizeof string - 1))
/*
** Turn a TIMEINFO into a floating point number.
*/
#define TIMEINFOasDOUBLE(t) \
((double)(t).time + ((double)(t).usec) / 1000000.0)
/*
** Get the size when binding an AF_UNIX socket.
*/
#if defined(DO_BIND_USE_SIZEOF)
#define AF_UNIX_SOCKSIZE(S) (sizeof S)
#else
#define AF_UNIX_SOCKSIZE(S) (sizeof S.sun_family + strlen(S.sun_path) + 1)
#endif /* defined(DO_BIND_USE_SIZEOF) */
/*
** Use a read or recv call to read a descriptor.
*/
#if defined(HAVE_UNIX_DOMAIN_SOCKETS)
#define RECVorREAD(fd, p, s) recv((fd), (p), (s), 0)
#else
#define RECVorREAD(fd, p, s) read((fd), (p), (s))
#endif /* defined(HAVE_UNIX_DOMAIN_SOCKETS) */
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