/* $Revision: 1.7 $ * $Id: macros.h,v 1.7 2003/10/22 18:50:15 rjs3 Exp $ * * Copyright (c) 1998-2003 Carnegie Mellon University. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The name "Carnegie Mellon University" must not be used to * endorse or promote products derived from this software without * prior written permission. For permission or any other legal * details, please contact * Office of Technology Transfer * Carnegie Mellon University * 5000 Forbes Avenue * Pittsburgh, PA 15213-3890 * (412) 268-4387, fax: (412) 268-7395 * tech-transfer@andrew.cmu.edu * * 4. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by Computing Services * at Carnegie Mellon University (http://www.cmu.edu/computing/)." * * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * ** 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)))) #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) */