3 /* gras/error.h - Error tracking support */
5 /* Authors: Martin Quinson */
6 /* Copyright (C) 2003 the OURAGAN project. */
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. */
15 #include <stddef.h> /* offsetof() */
16 #include <sys/types.h> /* size_t */
18 #include <execinfo.h> /* to print the backtrace */
21 /* C++ users need love */
24 # define BEGIN_DECL extern "C" {
30 /*! C++ users need love */
38 /* End of cruft for C++ */
43 no_error=0, /* succes */
44 malloc_error, /* Well known error */
45 mismatch_error, /* The provided ID does not match */
46 system_error, /* a syscall did fail */
47 network_error, /* error while sending/receiving data */
48 timeout_error, /* not quick enough, dude */
49 thread_error, /* error while [un]locking */
53 /*@observer@*/ const char *gras_error_name(gras_error_t errcode);
55 #define TRY(a) if ((errcode=a) != no_error) return errcode
56 #define TRYCATCH(a,b) if ((errcode=a) != no_error && errcode !=b) return errcode
57 #define TRYFAIL(a) do { \
58 if ((errcode=a) != no_error) { \
59 fprintf(stderr,"Got '%s' error !\n", \
60 gras_error_name(errcode)); \
65 #define TRYEXPECT(action,expected_error) do { \
67 if (errcode != expected_error) { \
68 fprintf(stderr,"Got error %s (instead of %s expected)\n", \
69 gras_error_name(errcode), \
70 gras_error_name(expected_error)); \
75 /* FIXME TRYCLEAN should be avoided for readability */
76 #define TRYCLEAN(action,cleanup) do { \
77 if ((errcode=action) != no_error) { \
83 #define _GRAS_ERR_PRE do { \
84 void *_gs_array[30]; \
85 size_t _gs_size= backtrace (_gs_array, 30); \
86 char **_gs_strings= backtrace_symbols (_gs_array, _gs_size); \
89 #define _GRAS_ERR_POST(code) \
90 fprintf(stderr,"Backtrace follows\n"); \
91 for (_gs_i = 0; _gs_i < _gs_size; _gs_i++) \
92 fprintf (stderr," %s\n", _gs_strings[_gs_i]); \
97 #define RAISE0(code,fmt) _GRAS_ERR_PRE \
98 fprintf(stderr,"%s:%d:%s: " fmt "\n", \
99 __FILE__,__LINE__,__FUNCTION__); \
101 #define RAISE1(code,fmt,a1) _GRAS_ERR_PRE \
102 fprintf(stderr,"%s:%d:%s: " fmt "\n", \
103 __FILE__,__LINE__,__FUNCTION__,a1); \
105 #define RAISE2(code,fmt,a1,a2) _GRAS_ERR_PRE \
106 fprintf(stderr,"%s:%d:%s: " fmt "\n", \
107 __FILE__,__LINE__,__FUNCTION__,a1,a2); \
109 #define RAISE3(code,fmt,a1,a2,a3) _GRAS_ERR_PRE \
110 fprintf(stderr,"%s:%d:%s: " fmt "\n", \
111 __FILE__,__LINE__,__FUNCTION__,a1,a2,a3); \
113 #define RAISE4(code,fmt,a1,a2,a3,a4) _GRAS_ERR_PRE \
114 fprintf(stderr,"%s:%d:%s: " fmt "\n", \
115 __FILE__,__LINE__,__FUNCTION__,a1,a2,a3,a4); \
117 #define RAISE5(code,fmt,a1,a2,a3,a4,a5) _GRAS_ERR_PRE \
118 fprintf(stderr,"%s:%d:%s: " fmt "\n", \
119 __FILE__,__LINE__,__FUNCTION__,a1,a2,a3,a4,a5); \
121 #define RAISE6(code,fmt,a1,a2,a3,a4,a5,a6) _GRAS_ERR_PRE \
122 fprintf(stderr,"%s:%d:%s: " fmt "\n", \
123 __FILE__,__LINE__,__FUNCTION__,a1,a2,a3,a4,a5,a6); \
126 #define RAISE_MALLOC RAISE0(malloc_error,"Malloc error")
127 #define RAISE_IMPOSSIBLE RAISE0(unknown_error,"The Impossible did happen")
128 #define RAISE_UNIMPLEMENTED RAISE1(unknown_error,"Function %s unimplemented",__FUNCTION__)
130 #define gras_abort abort
132 #define gras_assert(cond) if (!(cond)) { CRITICAL1("Assertion %s failed", #cond); gras_abort(); }
133 #define gras_assert0(cond,msg) if (!(cond)) { CRITICAL0(msg); gras_abort(); }
134 #define gras_assert1(cond,msg,a) if (!(cond)) { CRITICAL1(msg,a); gras_abort(); }
135 #define gras_assert2(cond,msg,a,b) if (!(cond)) { CRITICAL2(msg,a,b); gras_abort(); }
136 #define gras_assert3(cond,msg,a,b,c) if (!(cond)) { CRITICAL3(msg,a,b,c); gras_abort(); }
137 #define gras_assert4(cond,msg,a,b,c,d) if (!(cond)) { CRITICAL4(msg,a,b,c,d); gras_abort(); }
138 #define gras_assert5(cond,msg,a,b,c,d,e) if (!(cond)) { CRITICAL5(msg,a,b,c,d,e); gras_abort(); }
139 #define gras_assert6(cond,msg,a,b,c,d,e,f) if (!(cond)) { CRITICAL6(msg,a,b,c,d,e,f); gras_abort(); }
143 #endif /* GRAS_ERROR_H */