2 * useful common stuff, mostly error handling and debugging
5 * This is part of ypp-sc-tools, a set of third-party tools for assisting
6 * players of Yohoho Puzzle Pirates.
8 * Copyright (C) 2009 Ian Jackson <ijackson@chiark.greenend.org.uk>
10 * This program is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 * Yohoho and Puzzle Pirates are probably trademarks of Three Rings and
24 * are used without permission. This program is not endorsed or
25 * sponsored by Three Rings.
35 #include <sys/types.h>
43 /*----- debugging arrangements, rather contingent -----*/
49 typedef struct { /* both inclusive */
56 #define DEBUG_FLAG_LIST \
64 #define DF(f) dbg__shift_##f,
69 #define DF(f) dbg_##f = 1 << dbg__shift_##f,
76 #define DEBUGP(f) (!!(debug_flags & dbg_##f))
78 void debug_flush(void);
81 const char *get_vardir(void);
83 #define FMT(f,a) __attribute__((format(printf,f,a)))
84 #define NORET __attribute__((noreturn))
86 #define DEFINE_VWRAPPERF(decls, funcf, otherattribs) \
87 decls void funcf(const char *fmt, ...) FMT(1,2) otherattribs; \
88 decls void funcf(const char *fmt, ...) { \
89 va_list al; va_start(al,fmt); v##funcf(fmt,al); va_end(al); \
92 #define DEBUG_DEFINE_SOME_DEBUGF(fl,funcf) \
93 static void v##funcf(const char *fmt, va_list al) { \
95 vfprintf(debug,fmt,al); \
97 DEFINE_VWRAPPERF(static, funcf, )
99 #define DEBUG_DEFINE_DEBUGF(fl) DEBUG_DEFINE_SOME_DEBUGF(fl,debugf)
102 /*---------- error handling ----------*/
104 void vfatal(const char *fmt, va_list) FMT(1,0) NORET;
105 void fatal(const char *fmt, ...) FMT(1,2) NORET;
107 #define sysassert(what) \
108 ((what) ? (void)0 : sysassert_fail(__FILE__, __LINE__, #what))
110 void sysassert_fail(const char *file, int line, const char *what)
111 __attribute__((noreturn));
113 void waitpid_check_exitstatus(pid_t pid, const char *what);
116 void *mmalloc(size_t sz);
117 void *mrealloc(void *p, size_t sz);