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 */
20 #include "xbt/asserts.h"
22 #include "simgrid_config.h"
26 /* They live in asserts.h, but need to be declared before this module.
27 double declaration to cut dependency cycle */
29 * @addtogroup XBT_error
33 /** @brief Kill the program in silence */
34 #define xbt_abort() abort()
37 * @brief Kill the program with an error message
38 * \param ... a format string and its arguments
40 * Things are so messed up that the only thing to do now, is to stop the
43 * The message is handled by a CRITICAL logging request, and may consist of a
44 * format string with arguments.
46 #define xbt_die(...) \
48 XBT_LOG_EXTERNAL_CATEGORY(xbt); \
49 XBT_CCRITICAL(xbt, __VA_ARGS__); \
54 /* these ones live in str.h, but redeclare them here so that we do
55 not need to load the whole str.h and its heavy dependencies */
56 #ifndef __USE_GNU /* do not redeclare existing headers */
57 XBT_PUBLIC(int) asprintf(char **ptr, const char *fmt, /*args */
58 ...) _XBT_GNUC_PRINTF(2, 3);
59 XBT_PUBLIC(int) vasprintf(char **ptr, const char *fmt, va_list ap);
61 XBT_PUBLIC(char *) bprintf(const char *fmt, ...) _XBT_GNUC_PRINTF(1, 2);
63 /** @addtogroup XBT_syscall
64 * @brief Malloc and associated functions, killing the program on error (with \ref XBT_ex)
69 #if defined(__GNUC__) || defined(DOXYGEN)
70 /** @brief Like strdup, but xbt_die() on error */
71 static inline __attribute__ ((always_inline))
72 char *xbt_strdup(const char *s)
78 xbt_die("memory allocation error (strdup returned NULL)");
83 XBT_PUBLIC(void) xbt_backtrace_display_current(void);
85 /** @brief Like malloc, but xbt_die() on error
87 static inline __attribute__ ((always_inline))
88 void *xbt_malloc(size_t n)
92 xbt_backtrace_display_current();
93 xbt_die("malloc(0) is not portable");
98 xbt_die("Memory allocation of %lu bytes failed", (unsigned long)n);
102 /** @brief like malloc, but xbt_die() on error and memset data to 0
104 static inline __attribute__ ((always_inline))
105 void *xbt_malloc0(size_t n)
108 //if (n==0) xbt_die("calloc(0) is not portable");
111 xbt_die("Memory callocation of %lu bytes failed", (unsigned long)n);
115 /** @brief like realloc, but xbt_die() on error
117 static inline __attribute__ ((always_inline))
118 void *xbt_realloc(void *p, size_t s)
121 //if (s==0) xbt_die("realloc(0) is not portable");
126 xbt_die("memory (re)allocation of %lu bytes failed", (unsigned long)s);
137 #else /* non __GNUC__ */
138 # define xbt_strdup(s) strdup(s)
139 # define xbt_malloc(n) malloc(n)
140 # define xbt_malloc0(n) calloc(n,1)
141 # define xbt_realloc(p,s) realloc(p,s)
142 #endif /* __GNUC__ ? */
146 #define xbt_free free /*nothing specific to do here. A poor valgrind replacement? */
147 /*#define xbt_free_fct free * replacement with the guareenty of being a function FIXME:KILLME*/
149 /** @brief like free, but you can be sure that it is a function */
150 XBT_PUBLIC(void) xbt_free_f(void *p);
151 /** @brief should be given a pointer to pointer, and frees the second one */
152 XBT_PUBLIC(void) xbt_free_ref(void *d);
154 /** @brief like calloc, but xbt_die() on error and don't memset to 0
156 #define xbt_new(type, count) ((type*)xbt_malloc (sizeof (type) * (count)))
157 /** @brief like calloc, but xbt_die() on error
159 #define xbt_new0(type, count) ((type*)xbt_malloc0 (sizeof (type) * (count)))
165 #endif /* _XBT_SYSDEP_H */