X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/215ed67257173f5e26c9489ec96c4ced08d1614a..0bb15d22417c0691dafb9e369eea3564e0cfae7b:/include/xbt/sysdep.h diff --git a/include/xbt/sysdep.h b/include/xbt/sysdep.h index 7d41431806..282eba888a 100644 --- a/include/xbt/sysdep.h +++ b/include/xbt/sysdep.h @@ -1,9 +1,9 @@ -/* $Id$ */ /* xbt/sysdep.h -- all system dependency */ /* no system header should be loaded out of this file so that we have only */ /* one file to check when porting to another OS */ -/* Copyright (c) 2004 Martin Quinson. All rights reserved. */ +/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team. + * All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it * under the terms of the license (GNU LGPL) which comes with this package. */ @@ -12,64 +12,123 @@ #define _XBT_SYSDEP_H #include -#include -#include -#include /* va_list */ - +#include +#include /* va_list */ + +#include "xbt/log.h" #include "xbt/misc.h" #include "xbt/asserts.h" - + +#include "simgrid_config.h" + SG_BEGIN_DECL() +/* They live in asserts.h, but need to be declared before this module. + double declaration to cut dependency cycle */ +/** + * @addtogroup XBT_error + * + * @{ + */ +/** @brief Kill the program in silence */ +#define xbt_abort() abort() + +/** + * @brief Kill the program with an error message + * \param msg + * + * Things are so messed up that the only thing to do now, is to stop the + * program. + * + * The message is handled by a CRITICAL logging request, and may consist of a + * format string with arguments. + */ +#define xbt_die(...) \ + do { \ + XBT_LOG_EXTERNAL_CATEGORY(xbt); \ + XBT_CCRITICAL(xbt, __VA_ARGS__); \ + xbt_abort(); \ + } while (0) +/** @} */ + +/* these ones live in str.h, but redeclare them here so that we do + not need to load the whole str.h and its heavy dependencies */ +#ifndef __USE_GNU /* do not redeclare existing headers */ +XBT_PUBLIC(int) asprintf(char **ptr, const char *fmt, /*args */ + ...) _XBT_GNUC_PRINTF(2, 3); +XBT_PUBLIC(int) vasprintf(char **ptr, const char *fmt, va_list ap); +#endif +XBT_PUBLIC(char *) bprintf(const char *fmt, ...) _XBT_GNUC_PRINTF(1, 2); + /** @addtogroup XBT_syscall * @brief Malloc and associated functions, killing the program on error (with \ref XBT_ex) * - *
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* @{ */ #if defined(__GNUC__) || defined(DOXYGEN) /** @brief Like strdup, but xbt_die() on error */ -static inline char *xbt_strdup(const char *s) { +static inline __attribute__ ((always_inline)) +char *xbt_strdup(const char *s) +{ char *res = NULL; if (s) { - res=strdup(s); - if (!res) - xbt_die("memory allocation error"); - } + res = strdup(s); + if (!res) + xbt_die("memory allocation error (strdup returned NULL)"); + } return res; } -/** @brief Like malloc, but xbt_die() on error + +XBT_PUBLIC(void) xbt_backtrace_display_current(void); + +/** @brief Like malloc, but xbt_die() on error @hideinitializer */ -static inline void *xbt_malloc(int n){ - void *res=malloc(n); +static inline __attribute__ ((always_inline)) +void *xbt_malloc(size_t n) +{ + void *res; +/* if (n==0) { + xbt_backtrace_display_current(); + xbt_die("malloc(0) is not portable"); + }*/ + + res = malloc(n); if (!res) - xbt_die("Memory allocation failed"); + xbt_die(bprintf("Memory allocation of %lu bytes failed", + (unsigned long)n)); return res; } /** @brief like malloc, but xbt_die() on error and memset data to 0 @hideinitializer */ -static inline void *xbt_malloc0(int n) { - void *res=calloc(n,1); +static inline __attribute__ ((always_inline)) +void *xbt_malloc0(size_t n) +{ + void *res; + //if (n==0) xbt_die("calloc(0) is not portable"); + res = calloc(n, 1); if (!res) - xbt_die("Memory callocation failed"); + xbt_die(bprintf("Memory callocation of %lu bytes failed", + (unsigned long)n)); return res; } - -/** @brief like realloc, but xbt_die() on error + +/** @brief like realloc, but xbt_die() on error @hideinitializer */ -static inline void *xbt_realloc(void*p,int s){ - void *res=res; +static inline __attribute__ ((always_inline)) +void *xbt_realloc(void *p, size_t s) +{ + void *res = NULL; + //if (s==0) xbt_die("realloc(0) is not portable"); if (s) { if (p) { - res=realloc(p,s); - if (!res) - xbt_die("memory allocation error"); + res = realloc(p, s); + if (!res) + xbt_die(bprintf("memory (re)allocation of %lu bytes failed", + (unsigned long)s)); } else { - res=xbt_malloc(s); + res = xbt_malloc(s); } } else { if (p) { @@ -78,18 +137,23 @@ static inline void *xbt_realloc(void*p,int s){ } return res; } -#else /* non __GNUC__ */ +#else /* non __GNUC__ */ # define xbt_strdup(s) strdup(s) # define xbt_malloc(n) malloc(n) # define xbt_malloc0(n) calloc(n,1) # define xbt_realloc(p,s) realloc(p,s) -#endif /* __GNUC__ ? */ +#endif /* __GNUC__ ? */ /** @brief like free @hideinitializer */ -#define xbt_free free /*nothing specific to do here. A poor valgrind replacement?*/ +#define xbt_free free /*nothing specific to do here. A poor valgrind replacement? */ /*#define xbt_free_fct free * replacement with the guareenty of being a function FIXME:KILLME*/ - + +/** @brief like free, but you can be sure that it is a function */ +XBT_PUBLIC(void) xbt_free_f(void *p); +/** @brief should be given a pointer to pointer, and frees the second one */ +XBT_PUBLIC(void) xbt_free_ref(void *d); + /** @brief like calloc, but xbt_die() on error and don't memset to 0 @hideinitializer */ #define xbt_new(type, count) ((type*)xbt_malloc (sizeof (type) * (count))) @@ -97,12 +161,8 @@ static inline void *xbt_realloc(void*p,int s){ @hideinitializer */ #define xbt_new0(type, count) ((type*)xbt_malloc0 (sizeof (type) * (count))) -/** @} */ +/** @} */ -/* FIXME: better place? */ -int vasprintf (char **ptr, const char *fmt, va_list ap); -char *bprintf(const char*fmt, ...) _XBT_GNUC_PRINTF(1,2); - -SG_END_DECL() -#endif /* _XBT_SYSDEP_H */ +SG_END_DECL() +#endif /* _XBT_SYSDEP_H */