X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=lib%2Flib.h;h=923afca5622d349a258f82b08b359e6c0a3171b6;hb=7093c3275e649ae60935fe07bb6b44398b3ca4c0;hp=a6de298a29a7fcb31020cf95b0868ee11df8a5cc;hpb=ee29b327c99803abb3426de894601d0655312b13;p=libucw.git diff --git a/lib/lib.h b/lib/lib.h index a6de298a..923afca5 100644 --- a/lib/lib.h +++ b/lib/lib.h @@ -1,7 +1,10 @@ /* * Sherlock Library -- Miscellaneous Functions * - * (c) 1997--2001 Martin Mares + * (c) 1997--2004 Martin Mares + * + * This software may be freely distributed and used according to the terms + * of the GNU Lesser General Public License. */ /* @@ -19,29 +22,23 @@ #define _GNU_SOURCE -#ifndef NULL -#define NULL ((void *)0) -#endif - /* 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 +/* Some other macros */ -struct tempfile { - int fh; - byte name[32]; -}; - -void open_temp(struct tempfile *, byte *); -void delete_temp(struct tempfile *); -u32 temprand(uns); +#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))) +#define STRINGIFY(x) #x +#define GLUE(x,y) x##y +#define GLUE_(x,y) x##_##y /* Logging */ @@ -54,15 +51,21 @@ u32 temprand(uns); #define L_ERROR_R 'e' #define L_FATAL '!' /* die() */ -void log(unsigned int cat, byte *msg, ...); +extern char *log_title; /* NULL - print no title, default is log_progname */ + +void log_msg(unsigned int cat, const char *msg, ...) __attribute__((format(printf,2,3))); +#define log log_msg void die(byte *, ...) 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) +void assert_failed(char *assertion, char *file, int line) NONRET; +#define ASSERT(x) do { if (unlikely(!(x))) assert_failed(#x, __FILE__, __LINE__); } while(0) #else -#define ASSERT(x) do { } while(0) +void assert_failed(void) NONRET; +#define ASSERT(x) do { if (__builtin_constant_p(x) && !(x)) assert_failed(); } while(0) #endif #ifdef LOCAL_DEBUG @@ -73,7 +76,7 @@ void log_file(byte *); /* Memory allocation */ -#ifdef DMALLOC +#ifdef DEBUG_DMALLOC /* * The standard dmalloc macros tend to produce lots of namespace * conflicts and we use only xmalloc and xfree, so we can define @@ -96,43 +99,16 @@ void *xrealloc(void *, unsigned); #define xfree(x) free(x) #endif +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, *last_same; - byte attr; - byte val[1]; -}; - -void obj_dump(struct odes *); -struct odes *obj_new(struct mempool *); -void obj_free(struct odes *); -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 *); - /* Content-Type pattern matching and filters */ int match_ct_patt(byte *, byte *); /* log2.c */ -int log2(u32); +int fls(u32); /* wordsplit.c */ @@ -165,7 +141,7 @@ 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); @@ -176,6 +152,24 @@ 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); + +/* partmap.c */ + +struct partmap; +struct partmap *partmap_open(byte *name, int writeable); +void *partmap_map(struct partmap *p, sh_off_t offset, uns size); +void partmap_close(struct partmap *p); +sh_off_t partmap_size(struct partmap *p); + +/* 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