--- /dev/null
+/*
+ * useful common stuff, mostly error handling and debugging
+ */
+/*
+ * This is part of ypp-sc-tools, a set of third-party tools for assisting
+ * players of Yohoho Puzzle Pirates.
+ *
+ * Copyright (C) 2009 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Yohoho and Puzzle Pirates are probably trademarks of Three Rings and
+ * are used without permission. This program is not endorsed or
+ * sponsored by Three Rings.
+ */
+
+#ifndef COMMON_H
+#define COMMON_H
+
+#define _GNU_SOURCE
+
+#include <locale.h>
+#include <stdarg.h>
+#include <math.h>
+#include <stdio.h>
+#include <errno.h>
+#include <assert.h>
+#include <string.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <inttypes.h>
+#include <fnmatch.h>
+
+#include <pcre.h>
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+
+typedef struct {
+ int w,h;
+ char d[];
+} CanonImage;
+
+
+/*----- debugging arrangements, rather contingent -----*/
+
+typedef struct {
+ int x, y;
+} Point;
+
+typedef struct { /* both inclusive */
+ Point tl;
+ Point br;
+} Rect;
+
+#define RECT_W(r) ((r).br.x - (r).tl.x + 1)
+#define RECT_H(r) ((r).br.y - (r).tl.y + 1)
+
+
+
+#define DEBUG_FLAG_LIST \
+ DF(findypp) \
+ DF(pages) \
+ DF(rect) \
+ DF(pixmap) \
+ DF(struct) \
+ DF(ocr) \
+ DF(rsync) \
+ DF(structcolon) \
+ DF(callout)
+
+enum {
+#define DF(f) dbg__shift_##f,
+ DEBUG_FLAG_LIST
+#undef DF
+};
+enum {
+#define DF(f) dbg_##f = 1 << dbg__shift_##f,
+ DEBUG_FLAG_LIST
+#undef DF
+};
+
+unsigned debug_flags;
+
+#define DEBUGP(f) (!!(debug_flags & dbg_##f))
+
+void debug_flush(void);
+#define debug stderr
+
+const char *get_vardir(void);
+const char *get_libdir(void);
+
+#define FMT(f,a) __attribute__((format(printf,f,a)))
+#define SCANFMT(f,a) __attribute__((format(scanf,f,a)))
+#define NORET __attribute__((noreturn))
+
+#define DEFINE_VWRAPPERF(decls, funcf, otherattribs) \
+ decls void funcf(const char *fmt, ...) FMT(1,2) otherattribs; \
+ decls void funcf(const char *fmt, ...) { \
+ va_list al; va_start(al,fmt); v##funcf(fmt,al); va_end(al); \
+ }
+
+#define DEBUG_DEFINE_SOME_DEBUGF(fl,funcf) \
+ static void v##funcf(const char *fmt, va_list al) { \
+ if (DEBUGP(fl)) \
+ vfprintf(debug,fmt,al); \
+ } \
+ DEFINE_VWRAPPERF(static, funcf, )
+
+#define DEBUG_DEFINE_DEBUGF(fl) DEBUG_DEFINE_SOME_DEBUGF(fl,debugf)
+
+
+/*---------- error handling ----------*/
+
+void vfatal(const char *fmt, va_list) FMT(1,0) NORET;
+void fatal(const char *fmt, ...) FMT(1,2) NORET;
+
+#define sysassert(what) \
+ ((what) ? (void)0 : sysassert_fail(__FILE__, __LINE__, #what))
+
+void sysassert_fail(const char *file, int line, const char *what)
+ __attribute__((noreturn));
+
+void waitpid_check_exitstatus(pid_t pid, const char *what, int sigpipeok);
+
+
+void *mmalloc(size_t sz);
+void *mrealloc(void *p, size_t sz);
+
+
+#define dbassert(x) ((x) ? (void)0 : dbfile_assertfail(__FILE__,__LINE__,#x))
+void dbfile_assertfail(const char *file, int line, const char *m) NORET;
+
+FILE *dbfile;
+void dbfile_getsline(char *lbuf, size_t lbufsz, const char *file, int line);
+int dbfile_open(const char *tpath); /* 0: ENOENT; 1: worked */
+int dbfile_gzopen(const char *tpath); /* 0: ENOENT; 1: worked */
+void dbfile_close(void); /* idempotent */
+
+int dbfile_scanf(const char *fmt, ...) SCANFMT(1,2);
+int dbfile_vscanf(const char *fmt, va_list al) SCANFMT(1,0);
+
+int gzopen(const char *zpath, int oflags, FILE **f_r, pid_t *pid_r,
+ const char *gziplevel /* 0 for read; may be 0, or "-1" etc. */);
+ /* returns errno value from open */
+void gzclose(FILE **f, pid_t *p, const char *what);
+ /* also OK with f==0, or p==-1 */
+
+char *masprintf(const char *fmt, ...) FMT(1,2);
+
+#define EXECLP_HELPER(helper, ...) do{ \
+ char *helper_path= masprintf("%s/%s",get_libdir(),helper); \
+ execlp(helper_path,helper, __VA_ARGS__); \
+ sysassert(errno==ENOENT); \
+ fatal("Failed to find helper program %s.\n" \
+ "(Are you in the correct directory?)", helper); \
+ }while(0)
+
+
+#define ARRAYSIZE(a) ((sizeof((a)) / sizeof((a)[0])))
+#define FILLZERO(obj) (memset(&(obj),0,sizeof((obj))))
+
+#define STRING2(x) #x
+#define STRING(x) STRING2(x)
+
+#endif /*COMMON_H*/
~yarrgweb / ypp-sc-tools.main.git / blobdiff