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 Martin Quinson. All rights reserved. */
7 /* This program is free software; you can redistribute it and/or modify it
8 * under the terms of the license (GNU LGPL) which comes with this package. */
15 #include <stdarg.h> /* va_list */
18 #include "xbt/asserts.h"
22 /* They live in asserts.h, but need to be declared before this module.
23 double declaration to cut dependency cycle */
25 * @addtogroup XBT_error
29 XBT_PUBLIC(void) xbt_abort(void) _XBT_GNUC_NORETURN;
30 XBT_PUBLIC(void) xbt_die(const char *msg) _XBT_GNUC_NORETURN;
33 /* these ones live in str.h, but redeclare them here so that we do
34 not need to load the whole str.h and its heavy dependencies */
35 #ifndef __USE_GNU /* do not redeclare existing headers */
36 XBT_PUBLIC(int) asprintf(char **ptr, const char *fmt, /*args */
37 ...) _XBT_GNUC_PRINTF(2, 3);
38 XBT_PUBLIC(int) vasprintf(char **ptr, const char *fmt, va_list ap);
40 XBT_PUBLIC(char *) bprintf(const char *fmt, ...) _XBT_GNUC_PRINTF(1, 2);
42 /** @addtogroup XBT_syscall
43 * @brief Malloc and associated functions, killing the program on error (with \ref XBT_ex)
48 #if defined(__GNUC__) || defined(DOXYGEN)
49 /** @brief Like strdup, but xbt_die() on error */
50 static inline __attribute__((always_inline)) char *xbt_strdup(const char *s)
56 xbt_die("memory allocation error (strdup returned NULL)");
61 XBT_PUBLIC(void) xbt_backtrace_display_current(void);
63 /** @brief Like malloc, but xbt_die() on error
65 static inline __attribute__((always_inline)) void *xbt_malloc(unsigned int n)
69 xbt_backtrace_display_current();
70 xbt_die("malloc(0) is not portable");
75 xbt_die(bprintf("Memory allocation of %d bytes failed", n));
79 /** @brief like malloc, but xbt_die() on error and memset data to 0
81 static inline __attribute__((always_inline)) void *xbt_malloc0(unsigned int n)
84 //if (n==0) xbt_die("calloc(0) is not portable");
87 xbt_die(bprintf("Memory callocation of %d bytes failed", n));
91 /** @brief like realloc, but xbt_die() on error
93 static inline __attribute__((always_inline)) void *xbt_realloc(void *p, unsigned int s)
96 //if (s==0) xbt_die("realloc(0) is not portable");
101 xbt_die(bprintf("memory (re)allocation of %d bytes failed", s));
112 #else /* non __GNUC__ */
113 # define xbt_strdup(s) strdup(s)
114 # define xbt_malloc(n) malloc(n)
115 # define xbt_malloc0(n) calloc(n,1)
116 # define xbt_realloc(p,s) realloc(p,s)
117 #endif /* __GNUC__ ? */
121 #define xbt_free free /*nothing specific to do here. A poor valgrind replacement? */
122 /*#define xbt_free_fct free * replacement with the guareenty of being a function FIXME:KILLME*/
124 /** @brief like free, but you can be sure that it is a function */
125 XBT_PUBLIC(void) xbt_free_f(void *p);
126 /** @brief should be given a pointer to pointer, and frees the second one */
127 XBT_PUBLIC(void) xbt_free_ref(void *d);
129 /** @brief like calloc, but xbt_die() on error and don't memset to 0
131 #define xbt_new(type, count) ((type*)xbt_malloc (sizeof (type) * (count)))
132 /** @brief like calloc, but xbt_die() on error
134 #define xbt_new0(type, count) ((type*)xbt_malloc0 (sizeof (type) * (count)))
140 #endif /* _XBT_SYSDEP_H */