1 /* xbt/sysdep.h -- all system dependency */
2 /* no system header should be loaded out of this file so that we have only */
3 /* one file to check when porting to another OS */
5 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
6 * All rights reserved. */
8 /* This program is free software; you can redistribute it and/or modify it
9 * under the terms of the license (GNU LGPL) which comes with this package. */
16 #include <stdarg.h> /* va_list */
19 #include "xbt/asserts.h"
21 #include "simgrid_config.h"
25 /* They live in asserts.h, but need to be declared before this module.
26 double declaration to cut dependency cycle */
28 * @addtogroup XBT_error
32 XBT_PUBLIC(void) xbt_abort(void) _XBT_GNUC_NORETURN;
33 XBT_PUBLIC(void) xbt_die(const char *msg) _XBT_GNUC_NORETURN;
36 /* these ones live in str.h, but redeclare them here so that we do
37 not need to load the whole str.h and its heavy dependencies */
38 #ifndef __USE_GNU /* do not redeclare existing headers */
39 XBT_PUBLIC(int) asprintf(char **ptr, const char *fmt, /*args */
40 ...) _XBT_GNUC_PRINTF(2, 3);
41 XBT_PUBLIC(int) vasprintf(char **ptr, const char *fmt, va_list ap);
43 XBT_PUBLIC(char *) bprintf(const char *fmt, ...) _XBT_GNUC_PRINTF(1, 2);
45 /** @addtogroup XBT_syscall
46 * @brief Malloc and associated functions, killing the program on error (with \ref XBT_ex)
51 #if defined(__GNUC__) || defined(DOXYGEN)
52 /** @brief Like strdup, but xbt_die() on error */
53 static inline __attribute__ ((always_inline))
54 char *xbt_strdup(const char *s)
60 xbt_die("memory allocation error (strdup returned NULL)");
65 XBT_PUBLIC(void) xbt_backtrace_display_current(void);
67 /** @brief Like malloc, but xbt_die() on error
69 static inline __attribute__ ((always_inline))
70 void *xbt_malloc(size_t n)
74 xbt_backtrace_display_current();
75 xbt_die("malloc(0) is not portable");
80 xbt_die(bprintf("Memory allocation of %lu bytes failed",
85 /** @brief like malloc, but xbt_die() on error and memset data to 0
87 static inline __attribute__ ((always_inline))
88 void *xbt_malloc0(size_t n)
91 //if (n==0) xbt_die("calloc(0) is not portable");
94 xbt_die(bprintf("Memory callocation of %lu bytes failed",
99 /** @brief like realloc, but xbt_die() on error
101 static inline __attribute__ ((always_inline))
102 void *xbt_realloc(void *p, size_t s)
105 //if (s==0) xbt_die("realloc(0) is not portable");
110 xbt_die(bprintf("memory (re)allocation of %lu bytes failed",
122 #else /* non __GNUC__ */
123 # define xbt_strdup(s) strdup(s)
124 # define xbt_malloc(n) malloc(n)
125 # define xbt_malloc0(n) calloc(n,1)
126 # define xbt_realloc(p,s) realloc(p,s)
127 #endif /* __GNUC__ ? */
131 #define xbt_free free /*nothing specific to do here. A poor valgrind replacement? */
132 /*#define xbt_free_fct free * replacement with the guareenty of being a function FIXME:KILLME*/
134 /** @brief like free, but you can be sure that it is a function */
135 XBT_PUBLIC(void) xbt_free_f(void *p);
136 /** @brief should be given a pointer to pointer, and frees the second one */
137 XBT_PUBLIC(void) xbt_free_ref(void *d);
139 /** @brief like calloc, but xbt_die() on error and don't memset to 0
141 #define xbt_new(type, count) ((type*)xbt_malloc (sizeof (type) * (count)))
142 /** @brief like calloc, but xbt_die() on error
144 #define xbt_new0(type, count) ((type*)xbt_malloc0 (sizeof (type) * (count)))
150 #endif /* _XBT_SYSDEP_H */