/*
* 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.
+ */
+
+/*
+ * 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.
*/
#ifndef _SHERLOCK_LIB_H
#include "lib/config.h"
+/* Tell libc we're going to use all extensions available */
+
+#define _GNU_SOURCE
+
/* Ugly structure handling macros */
#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))
-/* Temporary Files */
-
-#define TMP_DIR "tmp"
-#define TMP_DIR_LEN 3
-
-struct tempfile {
- int fh;
- byte name[32];
-};
-
-void open_temp(struct tempfile *, byte *);
-void delete_temp(struct tempfile *);
-u32 temprand(uns);
-
-#define TF_GENERIC "t"
-#define TF_QUEUE_CONTROL "c"
-#define TF_QUEUE_DATA "d"
-#define TF_DECODE "x"
-#define TF_TRANSFORM "s"
-#define TF_OBJECT "o"
+/* Some other macros */
-/* Config Files */
-
-struct cfitem {
- byte *name;
- int type;
- void *var;
-};
-
-#define CI_STOP 0
-#define CI_INT 1
-#define CI_STRING 2
-#define CI_FUNCTION 3
-
-typedef byte *(*ci_func)(struct cfitem *, byte *);
-
-void cf_read(byte *, struct cfitem *);
-int cf_read_err(byte *, struct cfitem *); /* Read with possible error, 1 = succeeded */
+#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 *);
-void open_log_file(byte *);
+void assert_failed(char *assertion, char *file, int line) NONRET;
+void log_init(byte *);
+void log_file(byte *);
+void log_fork(void);
#ifdef DEBUG
-#define ASSERT(x) do { if (!(x)) die("Assertion `%s' failed at %s:%d", #x, __FILE__, __LINE__); } while(0)
+#define ASSERT(x) do { if (!(x)) assert_failed(#x, __FILE__, __LINE__); } while(0)
#else
#define ASSERT(x) do { } while(0)
#endif
-/* Allocation */
-
-void *xmalloc(uns);
-void *xrealloc(void *, uns);
-byte *stralloc(byte *);
-
-/* Content-Type pattern matching and filters */
-
-struct ct_filter;
+#ifdef LOCAL_DEBUG
+#define DBG(x,y...) log(L_DEBUG, x,##y)
+#else
+#define DBG(x,y...) do { } while(0)
+#endif
-int match_ct_patt(byte *, byte *);
+/* Memory allocation */
-struct ct_filter *new_ct_filter(void);
-byte *add_ct_filter(struct ct_filter *, byte *);
-int match_ct_filter(struct ct_filter *, byte *);
+#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
+/*
+ * 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
-/* Binary log */
+void *xmalloc_zero(unsigned);
+byte *stralloc(byte *);
-int log2(u32);
+/* Objects */
-/* obj.c */
+struct fastbuf;
struct odes { /* Object description */
struct oattr *attrs;
- struct mempool *pool;
+ 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 *, byte *);
-struct odes *obj_new(void);
-struct odes *obj_load(byte *);
-void obj_fwrite(FILE *, struct odes *);
-void obj_write(byte *, struct odes *);
+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);
-uns del_attr(struct odes *, struct oattr *);
-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 *);
-struct oattr *prepend_attr(struct odes *, 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);
-/* oname.c */
+/* Content-Type pattern matching and filters */
-#define OID_MIN 0x10000 /* Values less than this have special meaning */
+int match_ct_patt(byte *, byte *);
-oid_t new_oid(uns);
-void mk_obj_name(byte *, oid_t, byte *);
-int dump_obj_to_file(byte *, oid_t, struct odes *, int);
+/* log2.c */
+
+int log2(u32);
/* wordsplit.c */
int wordsplit(byte *, byte **, uns);
-/* pat(i)match.c */
+/* pat(i)match.c: Matching of shell patterns */
int match_pattern(byte *, byte *);
int match_pattern_nocase(byte *, byte *);
typedef struct regex regex;
-regex *rx_compile(byte *r);
+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);
-/* objwalk.c */
-
-void scan_obj_tree(byte *, void (*)(oid_t, byte *));
-
/* random.c */
uns random_max(uns);
/* mmap.c */
-void *mmap_file(byte *name, unsigned *len);
+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
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