/*
* 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) 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.
#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))
#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 */
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
-#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]
/* 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 */
/* random.c */
+uns random_u32(void);
uns random_max(uns max);
u64 random_u64(void);
u64 random_max_u64(u64 max);
/* sighandler.c */
-typedef int (*sh_sighandler_t)(int);
- /* obtains signum, returns nonzero if abort() should be called */
-extern sh_sighandler_t signal_handler[];
+typedef int (*sh_sighandler_t)(int); // gets signum, returns nonzero if abort() should be called
-struct sigaction;
-void handle_signal(int signum, struct sigaction *oldact);
-void unhandle_signal(int signum, struct sigaction *oldact);
+void handle_signal(int signum);
+void unhandle_signal(int signum);
+sh_sighandler_t set_signal_handler(int signum, sh_sighandler_t new);
/* string.c */
byte *str_unesc(byte *dest, byte *src);
+byte *str_format_flags(byte *dest, const byte *fmt, uns flags);
/* bigalloc.c */
-void *big_alloc(unsigned int len);
-void big_free(void *start, unsigned int len);
+void *page_alloc(u64 len) LIKE_MALLOC; // allocates a multiple of CPU_PAGE_SIZE bytes with mmap
+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_free(void *start, u64 len);
#endif