X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=lib%2Flib.h;h=c1709ea21a32b05c8d453b89a6946d6dc2906450;hb=07c33c7d74357fc60eaa354defe9fdca2917473a;hp=e6ffb2b6cc1be5dd1b9492a7e3664c21f3ade25e;hpb=b8b4146a066884ae9493d1642ae2a70412b2a5ca;p=libucw.git diff --git a/lib/lib.h b/lib/lib.h index e6ffb2b6..c1709ea2 100644 --- a/lib/lib.h +++ b/lib/lib.h @@ -1,128 +1,144 @@ /* * Sherlock Library -- Miscellaneous Functions * - * (c) 1997 Martin Mares, + * (c) 1997--2001 Martin Mares + * + * 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 #define _SHERLOCK_LIB_H -#include +#include "lib/config.h" -/* Temporary Files */ +/* Tell libc we're going to use all extensions available */ -#define TMP_DIR "tmp" -#define TMP_DIR_LEN 3 +#define _GNU_SOURCE -struct tempfile { - int fh; - byte name[32]; -}; +/* Ugly structure handling macros */ -void open_temp(struct tempfile *, byte *); -void delete_temp(struct tempfile *); -ulg 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" - -/* Config Files */ - -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 *); -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 *); - -/* Allocation */ - -void *xmalloc(uns); -void *xrealloc(void *, uns); -byte *stralloc(byte *); +void log_init(byte *); +void log_file(byte *); +void log_fork(void); + +#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 -/* Content-Type pattern matching and filters */ +#ifdef LOCAL_DEBUG +#define DBG(x,y...) log(L_DEBUG, x,##y) +#else +#define DBG(x,y...) do { } while(0) +#endif -struct ct_filter; +/* Memory allocation */ -int match_ct_patt(byte *, byte *); - -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 +#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(ulg); +/* 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); + +/* Content-Type pattern matching and filters */ -/* oname.c */ +int match_ct_patt(byte *, byte *); -#define OID_MIN 0x10000 /* Values less than this have special meaning */ +/* log2.c */ -ulg new_oid(uns); -void mk_obj_name(byte *, ulg, byte *); -int dump_obj_to_file(byte *, ulg, struct odes *, int); +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 *); @@ -149,21 +165,27 @@ uns get_timer(void); 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 (*)(ulg, 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