Some fixes. Implement close. Comply to new flash api.

[bertos.git] / bertos / struct / bitarray.h

diff --git a/bertos/struct/bitarray.h b/bertos/struct/bitarray.h
index 60dd26112bf3aa6d0a2ce4ceb6cfe1ce75ccf8b6..326617a34f0a1f7a8a6bfc1aff4716b42bb0a233 100644 (file)
--- a/bertos/struct/bitarray.h
+++ b/bertos/struct/bitarray.h
@@ -45,51 +45,131 @@
 
 #include <cpu/types.h>
 
-typedef struct BitArray
+
+#define ALLOC_BITARRAY(name, size)   uint8_t name[DIV_ROUNDUP((size), 8)]
+#define BIT_ARRAY_SIZE(name)         (sizeof((name)) * 8)
+
+INLINE void bitarray_set(int idx, uint8_t *bit_array, size_t len)
 {
-       size_t size;
-       uint8_t *array;
+       ASSERT((size_t)idx <= len);
+       int page = idx / 8;
+       uint8_t bit = idx % 8;
 
-} BitArray;
+       bit_array[page] |= BV(bit);
+}
 
+INLINE void bitarray_clear(int idx, uint8_t *bit_array, size_t len)
+{
+       ASSERT((size_t)idx <= len);
+       int page = idx / 8;
+       uint8_t bit = idx % 8;
 
-#define ALLOC_BITARRAY(name, size)   uint8_t name[DIV_ROUNDUP((size),8)]
+       bit_array[page] &= ~BV(bit);
+}
 
+INLINE void bitarray_setOffset(int idx, int offset, uint8_t *bit_array, size_t len)
+{
+       ASSERT((size_t)idx <= len);
+
+       for (int i = idx; i < offset + idx; i++)
+               bitarray_set(i, bit_array, len);
+}
 
-INLINE void bitarray_set(BitArray *ctx, int idx)
+
+INLINE void bitarray_clearOffset(int idx, int offset, uint8_t *bit_array, size_t len)
 {
-       ASSERT((size_t)idx <= ctx->size);
-       int page = idx / 8;
-       int bit = idx % 8;
+       ASSERT((size_t)idx <= len);
 
-       ctx->array[page] |= BV(bit);
+       for (int i = idx; i < offset + idx; i++)
+               bitarray_clear(i, bit_array, len);
 }
 
-INLINE void bitarray_clear(BitArray *ctx, int idx)
+INLINE bool bitarray_check(int idx, uint8_t *bit_array, size_t len)
 {
-       ASSERT((size_t)idx <= ctx->size);
+       ASSERT((size_t)idx <= len);
        int page = idx / 8;
-       int bit = idx % 8;
+       uint8_t bit = idx % 8;
 
-       ctx->array[page] &= ~BV(bit);
+       return (bit_array[page] & BV(bit));
 }
 
-INLINE bool bitarray_check(BitArray *ctx, int idx)
+INLINE bool bitarray_full(uint8_t *bit_array, size_t len)
 {
-       ASSERT((size_t)idx <= ctx->size);
-       int page = idx / 8;
-       int bit = idx % 8;
+       int count = len;
+       for (size_t page = 0; page <= len / 8; page++)
+       {
+               if (count < 8)
+               {
+                       for (size_t i = page * 8; i <= len; i++)
+                               if (!bitarray_check(i, bit_array, len))
+                                       return 0;
+                               count--;
+               }
+               else
+               {
+                       if (!(bit_array[page] == 0xff))
+                               return 0;
+               }
+               count -= 8;
+       }
+
+       return 1;
+}
+
+/*
+ * Ugly!.. reformat it.
+ */
+INLINE bool bitarray_blockFull(int idx, int offset, uint8_t *bit_array, size_t len)
+{
+       ASSERT((size_t)(idx + offset) <= len);
+
+       for (int i = idx; i <= idx + offset; i++)
+               if (!bitarray_check(i, bit_array, len))
+                       return 0;
 
-       return (ctx->array[page] & BV(bit));
+       return 1;
 }
 
-INLINE void init_bitarray(BitArray *ctx, uint8_t *array, size_t size)
+
+/*
+ * Ugly!.. reformat it.
+ */
+INLINE bool bitarray_blockEmpty(int idx, int offset, uint8_t *bit_array, size_t len)
 {
-       ctx->size = size;
-       ctx->array = array;
+       ASSERT((size_t)(idx + offset) <= len);
+
+       for (int i = idx; i <= idx + offset; i++)
+               if (bitarray_check(i, bit_array, len))
+                       return 0;
+
+       return 1;
 }
 
 
+INLINE void bitarray_dump(uint8_t *bit_array, size_t len)
+{
+       kprintf("bitarray size[%zu]bits\n", len);
+
+       int i = 0;
+       int j = 0;
+       int count = len;
+
+       while (count--)
+       {
+               kprintf("%d", bitarray_check(i++, bit_array, len));
+               if (j == 7)
+               {
+                       kprintf("..%02x [%d]\n", bit_array[(i / 8) - 1], i);
+                       j = 0;
+                       continue;
+               }
+               j++;
+       }
+
+       if (j != 0)
+               kprintf("..%02x [%d]\n", bit_array[i / 8], i);
+}
+
 int bitarray_testSetup(void);
 int bitarray_testRun(void);
 int bitarray_testTearDown(void);