X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=lib%2Flib.h;h=c1709ea21a32b05c8d453b89a6946d6dc2906450;hb=9f87c6fe6552ce8b2236a07307d2f825b0e4c439;hp=e58e52a4c3dcad204a9876a324d1bf06c9dde6f3;hpb=03846211ba84582b133a985200502a39462dfe66;p=libucw.git

diff --git a/lib/lib.h b/lib/lib.h
index e58e52a4..c1709ea2 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -1,109 +1,191 @@
 /*
  *	Sherlock Library -- Miscellaneous Functions
  *
- *	(c) 1997 Martin Mares, <mj@atrey.karlin.mff.cuni.cz>
+ *	(c) 1997--2001 Martin Mares <mj@ucw.cz>
+ *
+ *	This software may be freely distributed and used according to the terms
+ *	of the GNU Lesser General Public License.
  */
 
-#include <lib/config.h>
-
-/* Temporary Files */
+/*
+ *  This file should be included as the very first include in all
+ *  source files, especially before all OS includes since it sets
+ *  up libc feature macros.
+ */
 
-#define TMP_DIR "tmp"
-#define TMP_DIR_LEN 3
+#ifndef _SHERLOCK_LIB_H
+#define _SHERLOCK_LIB_H
 
-struct tempfile {
-  int fh;
-  byte name[32];
-};
+#include "lib/config.h"
 
-void open_temp(struct tempfile *, byte *);
-void delete_temp(struct tempfile *);
-ulg temprand(uns);
+/* Tell libc we're going to use all extensions available */
 
-#define TF_GENERIC "t"
-#define TF_QUEUE_CONTROL "c"
-#define TF_QUEUE_DATA "d"
+#define _GNU_SOURCE
 
-/* Config Files */
+/* Ugly structure handling macros */
 
-struct cfitem {
-  byte *name;
-  int type;
-  void *var;
-};
+#define OFFSETOF(s, i) ((unsigned int)&((s *)0)->i)
+#define SKIP_BACK(s, i, p) ((s *)((char *)p - OFFSETOF(s, i)))
+#define ALIGN(s, a) (((s)+a-1)&~(a-1))
+#define UNALIGNED_PART(ptr, type) (((long) (ptr)) % sizeof(type))
 
-#define CI_STOP 0
-#define CI_INT 1
-#define CI_STRING 2
-#define CI_FUNCTION 3
+/* Some other macros */
 
-typedef byte *(*ci_func)(struct cfitem *, byte *);
-
-void cf_read(byte *, struct cfitem *);
+#define MIN(a,b) (((a)<(b))?(a):(b))
+#define MAX(a,b) (((a)>(b))?(a):(b))
+#define CLAMP(x,min,max) ({ int _t=x; (_t < min) ? min : (_t > max) ? max : _t; })
+#define ABS(x) ((x) < 0 ? -(x) : (x))
+#define ARRAY_SIZE(a) (sizeof(a)/sizeof(*(a)))
 
 /* Logging */
 
-#define L_DEBUG "<0>"
-#define L_INFO "<2>"
-#define L_WARN "<4>"
-#define L_ERROR "<6>"
-#define L_FATAL "<9>"
+#define L_DEBUG		'D'		/* Debugging messages */
+#define L_INFO		'I'		/* Informational msgs, warnings and errors */
+#define L_WARN		'W'
+#define L_ERROR		'E'
+#define L_INFO_R	'i'		/* Errors caused by external events */
+#define L_WARN_R	'w'
+#define L_ERROR_R	'e'
+#define L_FATAL		'!'		/* die() */
 
-void log(byte *, ...);
+void log(unsigned int cat, const char *msg, ...) __attribute__((format(printf,2,3)));
 void die(byte *, ...) NONRET;
-void initlog(byte *);
-
-/* Allocation */
+void log_init(byte *);
+void log_file(byte *);
+void log_fork(void);
 
-void *xmalloc(uns);
-byte *stralloc(byte *);
-
-/* Content-Type pattern matching */
+#ifdef DEBUG
+void assert_failed(char *assertion, char *file, int line) NONRET;
+#define ASSERT(x) do { if (!(x)) assert_failed(#x, __FILE__, __LINE__); } while(0)
+#else
+void assert_failed(void) NONRET;
+#define ASSERT(x) do { if (__builtin_constant_p(x) && !(x)) assert_failed(); } while(0)
+#endif
 
-int match_ct_patt(byte *, byte *);
+#ifdef LOCAL_DEBUG
+#define DBG(x,y...) log(L_DEBUG, x,##y)
+#else
+#define DBG(x,y...) do { } while(0)
+#endif
 
-/* Binary log */
+/* Memory allocation */
 
-#ifdef HAVE_FFS
-#define log2(x) (ffs(x) - 1)
+#ifdef DMALLOC
+/*
+ * The standard dmalloc macros tend to produce lots of namespace
+ * conflicts and we use only xmalloc and xfree, so we can define
+ * the stubs ourselves.
+ */
+#define DMALLOC_DISABLE
+#include <dmalloc.h>
+#define xmalloc(size) _xmalloc_leap(__FILE__, __LINE__, size)
+#define xrealloc(ptr,size) _xrealloc_leap(__FILE__, __LINE__, ptr, size)
+#define xfree(ptr) _xfree_leap(__FILE__, __LINE__, ptr)
 #else
-int log2(ulg);
+/*
+ * Unfortunately, several libraries we might want to link to define
+ * their own xmalloc and we don't want to interfere with them, hence
+ * the renaming.
+ */
+#define xmalloc sh_xmalloc
+void *xmalloc(unsigned);
+void *xrealloc(void *, unsigned);
+#define xfree(x) free(x)
 #endif
 
-/* obj.c */
+void *xmalloc_zero(unsigned);
+byte *stralloc(byte *);
+
+/* Objects */
+
+struct fastbuf;
 
 struct odes {				/* Object description */
   struct oattr *attrs;
+  struct mempool *pool, *local_pool;
 };
 
 struct oattr {				/* Object attribute */
-  struct oattr *next, *same;
+  struct oattr *next, *same, *last_same;
   byte attr;
   byte val[1];
 };
 
 void obj_dump(struct odes *);
-struct odes *obj_fload(FILE *);
-struct odes *obj_new(void);
-struct odes *obj_load(byte *);
-void obj_fwrite(FILE *, struct odes *);	/* Closes the file afterwards... */
+struct odes *obj_new(struct mempool *);
 void obj_free(struct odes *);
-struct oattr *find_attr(struct odes *, uns);
-struct oattr *find_attr_last(struct odes *, uns);
-byte *find_aval(struct odes *, uns);
-struct oattr *set_attr(struct odes *, uns, byte *);
-struct oattr *set_attr_num(struct odes *, uns, uns);
-struct oattr *add_attr(struct odes *, struct oattr *, uns, byte *);
+int obj_read(struct fastbuf *, struct odes *);
+void obj_write(struct fastbuf *, struct odes *);
+struct oattr *obj_find_attr(struct odes *, uns);
+struct oattr *obj_find_attr_last(struct odes *, uns);
+uns obj_del_attr(struct odes *, struct oattr *);
+byte *obj_find_aval(struct odes *, uns);
+struct oattr *obj_set_attr(struct odes *, uns, byte *);
+struct oattr *obj_set_attr_num(struct odes *, uns, uns);
+struct oattr *obj_add_attr(struct odes *, struct oattr *, uns, byte *);
+struct oattr *obj_prepend_attr(struct odes *, uns, byte *);
+struct oattr *obj_insert_attr(struct odes *o, struct oattr *first, struct oattr *after, byte *v);
+
+/* Content-Type pattern matching and filters */
 
-/* oname.c */
+int match_ct_patt(byte *, byte *);
+
+/* log2.c */
 
-void mk_obj_name(byte *, ulg, byte *);
-FILE *create_obj_file(byte *, ulg);
+int log2(u32);
 
 /* wordsplit.c */
 
 int wordsplit(byte *, byte **, uns);
 
-/* patmatch.c */
+/* pat(i)match.c: Matching of shell patterns */
 
 int match_pattern(byte *, byte *);
+int match_pattern_nocase(byte *, byte *);
+
+/* md5hex.c */
+
+void md5_to_hex(byte *, byte *);
+void hex_to_md5(byte *, byte *);
+
+#define MD5_SIZE 16
+#define MD5_HEX_SIZE 33
+
+/* prime.c */
+
+int isprime(uns);
+uns nextprime(uns);
+
+/* timer.c */
+
+void init_timer(void);
+uns get_timer(void);
+
+/* regex.c */
+
+typedef struct regex regex;
+
+regex *rx_compile(byte *r, int icase);
+void rx_free(regex *r);
+int rx_match(regex *r, byte *s);
+int rx_subst(regex *r, byte *by, byte *src, byte *dest, uns destlen);
+
+/* random.c */
+
+uns random_max(uns);
+
+/* mmap.c */
+
+void *mmap_file(byte *name, unsigned *len, int writeable);
+void munmap_file(void *start, unsigned len);
+
+/* proctitle.c */
+
+void setproctitle_init(int argc, char **argv);
+void setproctitle(char *msg, ...) __attribute__((format(printf,1,2)));
+
+/* randomkey.c */
+
+void randomkey(byte *buf, uns size);
+
+#endif