X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ab55024e8ccdb08b01b688dc387afb3dc9e5fa8a..1cea9fbd30a5e473a588f1c188f30fd929eb1e4e:/include/xbt/sysdep.h diff --git a/include/xbt/sysdep.h b/include/xbt/sysdep.h index 2fcad47d7d..d127bec37c 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) 2004-2015. 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. */ @@ -11,99 +11,178 @@ #ifndef _XBT_SYSDEP_H #define _XBT_SYSDEP_H -#include -#include -#include -#include /* va_list */ - +#ifdef __cplusplus +#include +#endif + +#include "xbt/log.h" #include "xbt/misc.h" #include "xbt/asserts.h" - + +#include "simgrid_config.h" + SG_BEGIN_DECL() +#include +#include +#include /* va_list */ + +/* 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 */ +XBT_PUBLIC(void) xbt_abort(void) _XBT_GNUC_NORETURN; + +/** + * @brief Kill the program with an error message + * \param ... a format string and its arguments + * + * 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_CCRITICAL(xbt, __VA_ARGS__); \ + xbt_abort(); \ + } while (0) +/** @} */ + +XBT_LOG_EXTERNAL_CATEGORY(xbt); + +/* 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) +#ifdef _MSC_VER /* Microsoft wants to improve the code quality blah blah blah */ +/* warning C4996: '_strdup': The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name: _strdup. */ +# define strdup _strdup +/* warning C4996: 'fopen': This function or variable may be unsafe. Consider using fopen_s instead. */ +# define _CRT_SECURE_NO_WARNINGS +#endif + /** @brief Like strdup, but xbt_die() on error */ -static inline char *xbt_strdup(const char *s) { +static XBT_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 XBT_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("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 XBT_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("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 XBT_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("memory (re)allocation of %lu bytes failed", (unsigned long)s); } else { - res=xbt_malloc(s); + res = xbt_malloc(s); } } else { - if (p) { - free(p); - } + free(p); } return res; } -#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__ ? */ /** @brief like free @hideinitializer */ -#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*/ - +#define xbt_free(p) free(p) /*nothing specific to do here. A poor valgrind replacement? */ + +/** @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); + +SG_END_DECL() + /** @brief like calloc, but xbt_die() on error and don't memset to 0 @hideinitializer */ +#ifndef __cplusplus + #define xbt_new(type, count) ((type*)xbt_malloc (sizeof (type) * (count))) /** @brief like calloc, but xbt_die() on error @hideinitializer */ #define xbt_new0(type, count) ((type*)xbt_malloc0 (sizeof (type) * (count))) -/** @} */ +#else -/* FIXME: better place? */ -int asprintf (char **ptr, const char *fmt, /*args*/ ...) _XBT_GNUC_PRINTF(2,3); -int vasprintf (char **ptr, const char *fmt, va_list ap); -char *bprintf (const char*fmt, ...) _XBT_GNUC_PRINTF(1,2); - -SG_END_DECL() +/** C++ wrapper for xtb_new + * + * This ensures that we do not xbt_new things that need a constructor. + */ +template inline +T* xbt_new_(size_t count) +{ + static_assert(std::is_trivial(), + "Cannot xbt_new this type"); + return (T*) xbt_malloc(sizeof(T) * count); +} + +template inline +T* xbt_new0_(size_t count) +{ + static_assert(std::is_trivial(), + "Cannot xbt_new0 this type"); + return (T*) xbt_malloc0(sizeof(T) * count); +} + +#define xbt_new(type, count) ::xbt_new_(count) +#define xbt_new0(type, count) ::xbt_new0_(count) + +#endif + +/** @} */ -#endif /* _XBT_SYSDEP_H */ +#endif /* _XBT_SYSDEP_H */