diff --git a/components/utilities/libadt/Kconfig b/components/utilities/libadt/Kconfig new file mode 100644 index 0000000000..bb421cf8b0 --- /dev/null +++ b/components/utilities/libadt/Kconfig @@ -0,0 +1,24 @@ +menuconfig RT_USING_ADT + bool "Enable ADT(abstract data type)" + default y if ARCH_MM_MMU + default n + +config RT_USING_ADT_AVL + bool "AVL tree" + depends on RT_USING_ADT + default y + +config RT_USING_ADT_BITMAP + bool "Bitmap" + depends on RT_USING_ADT + default y + +config RT_USING_ADT_HASHMAP + bool "HashMap" + depends on RT_USING_ADT + default y + +config RT_USING_ADT_REF + bool "Reference API" + depends on RT_USING_ADT + default y diff --git a/components/utilities/libadt/SConscript b/components/utilities/libadt/SConscript index 86055d8ba2..22ea93cadf 100644 --- a/components/utilities/libadt/SConscript +++ b/components/utilities/libadt/SConscript @@ -1,8 +1,15 @@ from building import * cwd = GetCurrentDir() -src = Glob('*.c') -CPPPATH = [cwd] -group = DefineGroup('Utilities', src, depend = ['RT_USING_ADT'], CPPPATH = CPPPATH) +list = os.listdir(cwd) +objs = [] -Return('group') +if not GetDepend(['RT_USING_ADT']): + Return('objs') + +for d in list: + path = os.path.join(cwd, d) + if os.path.isfile(os.path.join(path, 'SConscript')): + objs = objs + SConscript(os.path.join(d, 'SConscript')) + +Return('objs') diff --git a/components/utilities/libadt/avl/SConscript b/components/utilities/libadt/avl/SConscript new file mode 100755 index 0000000000..8fabef3de3 --- /dev/null +++ b/components/utilities/libadt/avl/SConscript @@ -0,0 +1,9 @@ +from building import * + +cwd = GetCurrentDir() +src = Glob('*.c') +CPPPATH = [cwd] +group = [] + +group = DefineGroup('LIBADT', src, depend = ['RT_USING_ADT_AVL'], CPPPATH = CPPPATH) +Return('group') diff --git a/components/utilities/libadt/avl.c b/components/utilities/libadt/avl/avl.c similarity index 100% rename from components/utilities/libadt/avl.c rename to components/utilities/libadt/avl/avl.c diff --git a/components/utilities/libadt/avl.h b/components/utilities/libadt/avl/avl.h similarity index 100% rename from components/utilities/libadt/avl.h rename to components/utilities/libadt/avl/avl.h diff --git a/components/utilities/libadt/bitmap/SConscript b/components/utilities/libadt/bitmap/SConscript new file mode 100755 index 0000000000..739ff3b090 --- /dev/null +++ b/components/utilities/libadt/bitmap/SConscript @@ -0,0 +1,9 @@ +from building import * + +cwd = GetCurrentDir() +src = list() +CPPPATH = [cwd] +group = [] + +group = DefineGroup('LIBADT', src, depend = ['RT_USING_ADT_BITMAP'], CPPPATH = CPPPATH) +Return('group') diff --git a/components/utilities/libadt/bitmap/bitmap.h b/components/utilities/libadt/bitmap/bitmap.h new file mode 100755 index 0000000000..72fe54333a --- /dev/null +++ b/components/utilities/libadt/bitmap/bitmap.h @@ -0,0 +1,77 @@ +/* + * Copyright (c) 2006-2022, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2022-6-27 GuEe-GUI first version + */ + +#ifndef __UTIL_BITMAP_H__ +#define __UTIL_BITMAP_H__ + +#include + +typedef rt_ubase_t rt_bitmap_t; + +#define RT_BITMAP_BITS_MIN (sizeof(rt_bitmap_t) * 8) +#define RT_BITMAP_LEN(bits) (((bits) + (RT_BITMAP_BITS_MIN) - 1) / (RT_BITMAP_BITS_MIN)) +#define RT_BITMAP_BIT_LEN(nr) (nr * RT_BITMAP_BITS_MIN) +#define RT_DECLARE_BITMAP(name, bits) rt_bitmap_t name[RT_BITMAP_LEN(bits)] + +rt_inline void rt_bitmap_set_bit(rt_bitmap_t *bitmap, rt_uint32_t bit) +{ + bitmap[bit / RT_BITMAP_BITS_MIN] |= (1UL << (bit & (RT_BITMAP_BITS_MIN - 1))); +} + +rt_inline rt_bool_t rt_bitmap_test_bit(rt_bitmap_t *bitmap, rt_uint32_t bit) +{ + return !!(bitmap[bit / RT_BITMAP_BITS_MIN] & (1UL << (bit & (RT_BITMAP_BITS_MIN - 1)))); +} + +rt_inline void rt_bitmap_clear_bit(rt_bitmap_t *bitmap, rt_uint32_t bit) +{ + bitmap[bit / RT_BITMAP_BITS_MIN] &= ~(1UL << (bit & (RT_BITMAP_BITS_MIN - 1))); +} + +rt_inline rt_size_t rt_bitmap_next_set_bit(rt_bitmap_t *bitmap, rt_size_t start, rt_size_t limit) +{ + rt_size_t bit; + + for (bit = start; bit < limit && !rt_bitmap_test_bit(bitmap, bit); ++bit) + { + } + + return bit; +} + +rt_inline rt_size_t rt_bitmap_next_clear_bit(rt_bitmap_t *bitmap, rt_size_t start, rt_size_t limit) +{ + rt_size_t bit; + + for (bit = start; bit < limit && rt_bitmap_test_bit(bitmap, bit); ++bit) + { + } + + return bit; +} + +#define rt_bitmap_for_each_bit_from(state, bitmap, from, bit, limit) \ + for ((bit) = rt_bitmap_next_##state##_bit((bitmap), (from), (limit)); \ + (bit) < (limit); \ + (bit) = rt_bitmap_next_##state##_bit((bitmap), (bit + 1), (limit))) + +#define rt_bitmap_for_each_set_bit_from(bitmap, from, bit, limit) \ + rt_bitmap_for_each_bit_from(set, bitmap, from, bit, limit) + +#define rt_bitmap_for_each_set_bit(bitmap, bit, limit) \ + rt_bitmap_for_each_set_bit_from(bitmap, 0, bit, limit) + +#define rt_bitmap_for_each_clear_bit_from(bitmap, from, bit, limit) \ + rt_bitmap_for_each_bit_from(clear, bitmap, from, bit, limit) + +#define rt_bitmap_for_each_clear_bit(bitmap, bit, limit) \ + rt_bitmap_for_each_clear_bit_from(bitmap, 0, bit, limit) + +#endif /* __UTIL_BITMAP_H__ */ diff --git a/components/utilities/libadt/hashmap/SConscript b/components/utilities/libadt/hashmap/SConscript new file mode 100755 index 0000000000..21e4764945 --- /dev/null +++ b/components/utilities/libadt/hashmap/SConscript @@ -0,0 +1,9 @@ +from building import * + +cwd = GetCurrentDir() +src = list() +CPPPATH = [cwd] +group = [] + +group = DefineGroup('LIBADT', src, depend = ['RT_USING_ADT_HASHMAP'], CPPPATH = CPPPATH) +Return('group') diff --git a/components/utilities/libadt/hashmap/hashmap.h b/components/utilities/libadt/hashmap/hashmap.h new file mode 100755 index 0000000000..03e41b2345 --- /dev/null +++ b/components/utilities/libadt/hashmap/hashmap.h @@ -0,0 +1,41 @@ +/* + * Copyright (c) 2006-2022, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2022-08-01 GuEe-GUI first version + */ + +#ifndef __UTIL_HASHMAP_H__ +#define __UTIL_HASHMAP_H__ + +#include + +/* + * http://www.citi.umich.edu/techreports/reports/citi-tr-00-1.pdf + * + * GoldenRatio = ~(Math.pow(2, 32) / ((Math.sqrt(5) - 1) / 2)) + 1 + */ +#define RT_HASHMAP_GOLDEN_RATIO_32 0x61C88647 +#define RT_HASHMAP_GOLDEN_RATIO_64 0X61C8864680B583EBULL + +rt_inline rt_uint32_t rt_hashmap_32(rt_uint32_t val, rt_uint32_t bits) +{ + /* High bits are more random, so use them. */ + return (val * RT_HASHMAP_GOLDEN_RATIO_32) >> (32 - bits); +} + +rt_inline rt_uint32_t rt_hashmap_64(rt_uint64_t val, rt_uint32_t bits) +{ +#ifdef ARCH_CPU_64BIT + /* 64x64-bit multiply is efficient on all 64-bit processors */ + return val * RT_HASHMAP_GOLDEN_RATIO_64 >> (64 - bits); +#else + /* Hash 64 bits using only 32x32-bit multiply. */ + return rt_hashmap_32((rt_uint32_t)val ^ ((val >> 32) * RT_HASHMAP_GOLDEN_RATIO_32), bits); +#endif +} + +#endif /* __UTIL_HASHMAP_H__ */ diff --git a/components/utilities/libadt/ref/SConscript b/components/utilities/libadt/ref/SConscript new file mode 100755 index 0000000000..faec462207 --- /dev/null +++ b/components/utilities/libadt/ref/SConscript @@ -0,0 +1,9 @@ +from building import * + +cwd = GetCurrentDir() +src = list() +CPPPATH = [cwd] +group = [] + +group = DefineGroup('LIBADT', src, depend = ['RT_USING_ADT_REF'], CPPPATH = CPPPATH) +Return('group') diff --git a/components/utilities/libadt/ref/ref.h b/components/utilities/libadt/ref/ref.h new file mode 100644 index 0000000000..da700e4a1c --- /dev/null +++ b/components/utilities/libadt/ref/ref.h @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2006-2023, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2022-3-1 zhouxiaohu first version + * 2023-5-18 GuEe-GUI implemented by rtatomic + */ + +#ifndef __UTIL_REF_H__ +#define __UTIL_REF_H__ + +#include + +/** + * struct ref must be embedded in an object. + * it acts as a reference counter for the object. + */ +struct rt_ref +{ + rt_atomic_t refcount; +}; + +#define RT_REF_INIT(n) { .refcount = n, } + +rt_inline void rt_ref_init(struct rt_ref *r) +{ + rt_atomic_store(&r->refcount, 1); +} + +rt_inline unsigned int rt_ref_read(struct rt_ref *r) +{ + return rt_atomic_load(&r->refcount); +} + +/** + * ref_get + * increment reference counter for object. + */ +rt_inline void rt_ref_get(struct rt_ref *r) +{ + rt_atomic_add(&r->refcount, 1); +} + +/** + * ref_put + * decrement reference counter for object. + * If the reference counter is zero, call release(). + * + * Return 1 means the object's reference counter is zero and release() is called. + */ +rt_inline int rt_ref_put(struct rt_ref *r, void (*release)(struct rt_ref *r)) +{ + if (rt_atomic_dec_and_test(&r->refcount)) + { + release(r); + + return 1; + } + + return 0; +} + +/** + * ref_get_unless_zero - Increment refcount for object unless it is zero. + * Return non-zero if the increment succeeded. Otherwise return 0. + */ +rt_inline int rt_ref_get_unless_zero(struct rt_ref *r) +{ + return (int)rt_atomic_inc_not_zero(&r->refcount); +} + +#endif /* __UTIL_REF_H__ */