fb-file: some comments and automatic tests

[libucw.git] / lib / lib.h

diff --git a/lib/lib.h b/lib/lib.h
index 4a6b9d81e3620fd0ddb0908e6d46e421fb7caf55..92c891526767e8b7333c55900596a15d266ebbeb 100644 (file)
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -1,9 +1,10 @@
 /*
  *     The UCW Library -- Miscellaneous Functions
  *
 /*
  *     The UCW Library -- Miscellaneous Functions
  *

- *     (c) 1997--2006 Martin Mares <mj@ucw.cz>
+ *     (c) 1997--2007 Martin Mares <mj@ucw.cz>

  *     (c) 2005 Tomas Valla <tom@ucw.cz>
  *     (c) 2006 Robert Spalek <robert@ucw.cz>
  *     (c) 2005 Tomas Valla <tom@ucw.cz>
  *     (c) 2006 Robert Spalek <robert@ucw.cz>

+ *     (c) 2007 Pavel Charvat <pchar@ucw.cz>

  *
  *     This software may be freely distributed and used according to the terms
  *     of the GNU Lesser General Public License.
  *
  *     This software may be freely distributed and used according to the terms
  *     of the GNU Lesser General Public License.


@@ -15,12 +16,6 @@
 #include "lib/config.h"
 #include <stdarg.h>
 
 #include "lib/config.h"
 #include <stdarg.h>
 

-/* Tell libc we're going to use all extensions available */
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-

 /* Macros for handling structurues, offsets and alignment */
 
 #define CHECK_PTR_TYPE(x, type) ((x)-(type)(x) + (type)(x))
 /* Macros for handling structurues, offsets and alignment */
 
 #define CHECK_PTR_TYPE(x, type) ((x)-(type)(x) + (type)(x))


@@ -28,8 +23,8 @@
 #define OFFSETOF(s, i) ((unsigned int) PTR_TO(s, i))
 #define SKIP_BACK(s, i, p) ((s *)((char *)p - OFFSETOF(s, i)))
 #define ALIGN_TO(s, a) (((s)+a-1)&~(a-1))
 #define OFFSETOF(s, i) ((unsigned int) PTR_TO(s, i))
 #define SKIP_BACK(s, i, p) ((s *)((char *)p - OFFSETOF(s, i)))
 #define ALIGN_TO(s, a) (((s)+a-1)&~(a-1))

-#define ALIGN_PTR(p, s) ((addr_int_t)(p) % (s) ? (typeof(p))((addr_int_t)(p) + (s) - (addr_int_t)(p) % (s)) : (p))
-#define UNALIGNED_PART(ptr, type) (((addr_int_t) (ptr)) % sizeof(type))
+#define ALIGN_PTR(p, s) ((uintptr_t)(p) % (s) ? (typeof(p))((uintptr_t)(p) + (s) - (uintptr_t)(p) % (s)) : (p))
+#define UNALIGNED_PART(ptr, type) (((uintptr_t) (ptr)) % sizeof(type))

 
 /* Some other macros */
 
 
 /* Some other macros */
 


@@ -117,9 +112,9 @@ void assert_failed(char *assertion, char *file, int line) NONRET;
 void assert_failed_noinfo(void) NONRET;
 
 #ifdef DEBUG_ASSERTS
 void assert_failed_noinfo(void) NONRET;
 
 #ifdef DEBUG_ASSERTS

-#define ASSERT(x) do { if (unlikely(!(x))) assert_failed(#x, __FILE__, __LINE__); } while(0)
+#define ASSERT(x) ({ if (unlikely(!(x))) assert_failed(#x, __FILE__, __LINE__); 1; })

 #else
 #else

-#define ASSERT(x) do { if (__builtin_constant_p(x) && !(x)) assert_failed_noinfo(); } while(0)
+#define ASSERT(x) ({ if (__builtin_constant_p(x) && !(x)) assert_failed_noinfo(); 1; })

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


@@ -198,11 +193,11 @@ uns prev_table_prime(uns x);
 
 /* timer.c */
 
 
 /* timer.c */
 

-struct timeval;
+timestamp_t get_timestamp(void);

 
 

-void init_timer(void);
-uns get_timer(void);
-void get_last_timeval(struct timeval *tv);
+void init_timer(timestamp_t *timer);
+uns get_timer(timestamp_t *timer);
+uns switch_timer(timestamp_t *old, timestamp_t *new);

 
 /* regex.c */
 
 
 /* regex.c */
 


@@ -215,6 +210,7 @@ int rx_subst(regex *r, byte *by, byte *src, byte *dest, uns destlen);
 
 /* random.c */
 
 
 /* random.c */
 

+uns random_u32(void);

 uns random_max(uns max);
 u64 random_u64(void);
 u64 random_max_u64(u64 max);
 uns random_max(uns max);
 u64 random_u64(void);
 u64 random_max_u64(u64 max);


@@ -268,5 +264,17 @@ sh_sighandler_t set_signal_handler(int signum, sh_sighandler_t new);
 /* string.c */
 
 byte *str_unesc(byte *dest, byte *src);
 /* string.c */
 
 byte *str_unesc(byte *dest, byte *src);

+byte *str_format_flags(byte *dest, const byte *fmt, uns flags);
+
+/* bigalloc.c */
+
+void *page_alloc(u64 len) LIKE_MALLOC; // allocates a multiple of CPU_PAGE_SIZE bytes with mmap
+void *page_alloc_zero(u64 len) LIKE_MALLOC;
+void page_free(void *start, u64 len);
+void *page_realloc(void *start, u64 old_len, u64 new_len);
+
+void *big_alloc(u64 len) LIKE_MALLOC; // allocate a large memory block in the most efficient way available
+void *big_alloc_zero(u64 len) LIKE_MALLOC;
+void big_free(void *start, u64 len);

 
 #endif
 
 #endif