X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/4a201b7ceece70d2bc461ac48c8b746a36d07243..43cfff77113704360f4d55b40e890c65a09d8059:/include/xbt/sysdep.h diff --git a/include/xbt/sysdep.h b/include/xbt/sysdep.h index 64eb19101a..9ed7c53e13 100644 --- a/include/xbt/sysdep.h +++ b/include/xbt/sysdep.h @@ -2,7 +2,8 @@ /* 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. */ @@ -10,15 +11,22 @@ #ifndef _XBT_SYSDEP_H #define _XBT_SYSDEP_H -#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 */ /** @@ -26,10 +34,28 @@ SG_BEGIN_DECL() * * @{ */ +/** @brief Kill the program in silence */ XBT_PUBLIC(void) xbt_abort(void) _XBT_GNUC_NORETURN; -XBT_PUBLIC(void) xbt_die(const char *msg) _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 */ @@ -47,7 +73,8 @@ XBT_PUBLIC(char *) bprintf(const char *fmt, ...) _XBT_GNUC_PRINTF(1, 2); #if defined(__GNUC__) || defined(DOXYGEN) /** @brief Like strdup, but xbt_die() on error */ -static inline __attribute__((always_inline)) char *xbt_strdup(const char *s) +static inline __attribute__ ((always_inline)) +char *xbt_strdup(const char *s) { char *res = NULL; if (s) { @@ -62,7 +89,8 @@ XBT_PUBLIC(void) xbt_backtrace_display_current(void); /** @brief Like malloc, but xbt_die() on error @hideinitializer */ -static inline __attribute__((always_inline)) void *xbt_malloc(unsigned int n) +static inline __attribute__ ((always_inline)) +void *xbt_malloc(size_t n) { void *res; /* if (n==0) { @@ -72,69 +100,97 @@ static inline __attribute__((always_inline)) void *xbt_malloc(unsigned int n) res = malloc(n); if (!res) - xbt_die(bprintf("Memory allocation of %d bytes failed", n)); + 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 __attribute__((always_inline)) void *xbt_malloc0(unsigned int n) +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(bprintf("Memory callocation of %d bytes failed", n)); + xbt_die("Memory callocation of %lu bytes failed", (unsigned long)n); return res; } /** @brief like realloc, but xbt_die() on error @hideinitializer */ -static inline __attribute__((always_inline)) void *xbt_realloc(void *p, unsigned int s) +static inline __attribute__ ((always_inline)) +void *xbt_realloc(void *p, size_t s) { - void *res = res; + 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(bprintf("memory (re)allocation of %d bytes failed", s)); + xbt_die("memory (re)allocation of %lu bytes failed", (unsigned long)s); } else { res = xbt_malloc(s); } } else { - if (p) { - free(p); - } + free(p); } 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_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 +/** 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); +} -SG_END_DECL() -#endif /* _XBT_SYSDEP_H */ +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 */