define BUCK2OBJ_INITIAL_MAX_LEN

[libucw.git] / lib / lib.h

diff --git a/lib/lib.h b/lib/lib.h
index a6de298a29a7fcb31020cf95b0868ee11df8a5cc..c58d83da573283fa5385a6a4dab61123bc789be9 100644 (file)
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -1,7 +1,10 @@
 /*
  *     Sherlock Library -- Miscellaneous Functions
  *
 /*
  *     Sherlock Library -- Miscellaneous Functions
  *

- *     (c) 1997--2001 Martin Mares <mj@ucw.cz>
+ *     (c) 1997--2004 Martin Mares <mj@ucw.cz>
+ *
+ *     This software may be freely distributed and used according to the terms
+ *     of the GNU Lesser General Public License.

  */
 
 /*
  */
 
 /*


@@ -14,34 +17,31 @@
 #define _SHERLOCK_LIB_H
 
 #include "lib/config.h"
 #define _SHERLOCK_LIB_H
 
 #include "lib/config.h"

+#include <stdarg.h>

 
 /* Tell libc we're going to use all extensions available */
 
 #define _GNU_SOURCE
 
 
 /* Tell libc we're going to use all extensions available */
 
 #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))
 /* 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
+#define COMPARE(x,y) do { if ((x)<(y)) return -1; if ((x)>(y)) return 1; } while(0)
+#define REV_COMPARE(x,y) COMPARE(y,x)

 
 /* Logging */
 
 
 /* Logging */
 


@@ -54,26 +54,45 @@ u32 temprand(uns);
 #define L_ERROR_R      'e'
 #define L_FATAL                '!'             /* die() */
 
 #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 */
+extern char *log_filename;             /* Expanded name of the current log file */
+extern int log_switch_nest;            /* log_switch() nesting counter, increment to disable automatic switches */
+extern int log_pid;                    /* 0 if shouldn't be logged */
+extern void (*log_die_hook)(void);
+struct tm;
+extern void (*log_switch_hook)(struct tm *tm);
+
+void log_msg(unsigned int cat, const char *msg, ...) __attribute__((format(printf,2,3)));
+#define log log_msg
+void vlog_msg(unsigned int cat, const char *msg, va_list args);

 void die(byte *, ...) NONRET;
 void die(byte *, ...) NONRET;

-void log_init(byte *);
-void log_file(byte *);
+void log_init(byte *argv0);
+void log_file(byte *name);
+void log_fork(void);
+void log_switch(void);

 
 #ifdef DEBUG
 
 #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
 #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
 
 #endif
 

+#define COMPILE_ASSERT(name,x) typedef char _COMPILE_ASSERT_##name[!!(x)-1]
+

 #ifdef LOCAL_DEBUG
 #define DBG(x,y...) log(L_DEBUG, x,##y)
 #else
 #define DBG(x,y...) do { } while(0)
 #endif
 
 #ifdef LOCAL_DEBUG
 #define DBG(x,y...) log(L_DEBUG, x,##y)
 #else
 #define DBG(x,y...) do { } while(0)
 #endif
 

+static inline void log_switch_disable(void) { log_switch_nest++; }
+static inline void log_switch_enable(void) { ASSERT(log_switch_nest); log_switch_nest--; }
+

 /* Memory allocation */
 
 /* 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
 /*
  * The standard dmalloc macros tend to produce lots of namespace
  * conflicts and we use only xmalloc and xfree, so we can define


@@ -96,35 +115,8 @@ void *xrealloc(void *, unsigned);
 #define xfree(x) free(x)
 #endif
 
 #define xfree(x) free(x)
 #endif
 

-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 *);
+void *xmalloc_zero(unsigned);
+byte *xstrdup(byte *);

 
 /* Content-Type pattern matching and filters */
 
 
 /* Content-Type pattern matching and filters */
 


@@ -132,7 +124,7 @@ int match_ct_patt(byte *, byte *);
 
 /* log2.c */
 
 
 /* log2.c */
 

-int log2(u32);
+int fls(u32);

 
 /* wordsplit.c */
 
 
 /* wordsplit.c */
 


@@ -165,7 +157,7 @@ uns get_timer(void);
 
 typedef struct regex regex;
 
 
 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);
 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 +168,53 @@ uns random_max(uns);
 
 /* mmap.c */
 
 
 /* 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);
+
+/* exitstatus.c */
+
+#define EXIT_STATUS_MSG_SIZE 32
+int format_exit_status(byte *msg, int stat);
+
+/* runcmd.c */
+
+int run_command(byte *cmd, ...);
+void NONRET exec_command(byte *cmd, ...);
+void echo_command(byte *buf, int size, byte *cmd, ...);
+int run_command_v(byte *cmd, va_list args);
+void NONRET exec_command_v(byte *cmd, va_list args);
+void echo_command_v(byte *buf, int size, byte *cmd, va_list args);
+
+/* carefulio.c */
+
+int careful_read(int fd, void *buf, int len);
+int careful_write(int fd, void *buf, int len);
+
+/* sighandler.c */
+
+typedef int (*sh_sighandler_t)(int);
+  /* obtains signum, returns nonzero if abort() should be called */
+extern sh_sighandler_t signal_handler[];
+
+struct sigaction;
+void handle_signal(int signum, struct sigaction *oldact);
+void unhandle_signal(int signum, struct sigaction *oldact);

 
 #endif
 
 #endif