Foundations

2026-08-29 01:50:50 +08:00
parent bf5fc3bda6
commit 8e95904cc4
100 changed files with 13997 additions and 0 deletions
@@ -0,0 +1,66 @@
+#ifndef INCLUDED_C_FASTBYTERINGBUFFER_H
+#define INCLUDED_C_FASTBYTERINGBUFFER_H
+
+#ifndef INCLUDED_C_TYPES_H
+#include <c_Types.h>
+#endif /*INCLUDED_C_TYPES_H*/
+
+
+/* ------------------------------------------------------------------------------------------------------------------ */
+/*  */
+
+typedef struct {
+    uint8_t* buffer;     // 連續的位元組陣列
+    c_size_t capacity;   // 必為 2 的冪次方 (e.g., 16, 32, 64, 256)
+    c_size_t mask;       // 快取 (capacity - 1)，用來進行位元與運算
+    c_size_t head;       // 讀取指標
+    c_size_t tail;       // 寫入指標
+    c_bool_t is_full;    // 狀態區分旗標
+} c_FastByteRingBuffer_t;
+
+c_err_t c_FastByteRingBuffer_Init(c_FastByteRingBuffer_t* self, c_size_t capacity);
+void c_FastByteRingBuffer_Destroy(c_FastByteRingBuffer_t* self);
+
+c_err_t c_FastByteRingBuffer_WriteByte(c_FastByteRingBuffer_t* self, uint8_t byte);
+c_err_t c_FastByteRingBuffer_ReadByte(c_FastByteRingBuffer_t* self, uint8_t* out_byte);
+
+/*
+ * Writes a bulk buffer span into the fast ring buffer without overwriting existing data.
+ * @param self: The fast ring buffer instance.
+ * @param src: Source byte array pointer.
+ * @param len: Number of bytes to transfer.
+ * @return The actual number of bytes written into the buffer.
+ */
+c_size_t c_FastByteRingBuffer_WriteBuffer(c_FastByteRingBuffer_t* self, const uint8_t* src, c_size_t len);
+
+c_size_t c_FastByteRingBuffer_ReadBuffer(c_FastByteRingBuffer_t* self, uint8_t* dest, c_size_t len);
+
+c_size_t c_FastByteRingBuffer_GetSize(const c_FastByteRingBuffer_t* self);
+c_bool_t c_FastByteRingBuffer_IsEmpty(const c_FastByteRingBuffer_t* self);
+c_bool_t c_FastByteRingBuffer_IsFull(const c_FastByteRingBuffer_t* self);
+
+
+/* 新增的進階控制接口 */
+void c_FastByteRingBuffer_WriteByteOverwrite(c_FastByteRingBuffer_t* self, uint8_t byte);
+c_size_t c_FastByteRingBuffer_WriteBufferOverwrite(c_FastByteRingBuffer_t* self, const uint8_t* src, c_size_t len);
+
+c_err_t c_FastByteRingBuffer_PeekByte(const c_FastByteRingBuffer_t* self, uint8_t* out_byte);
+c_size_t c_FastByteRingBuffer_PeekBuffer(const c_FastByteRingBuffer_t* self, uint8_t* dest, c_size_t len);
+
+c_size_t c_FastByteRingBuffer_Discard(c_FastByteRingBuffer_t* self, c_size_t len);
+const uint8_t* c_FastByteRingBuffer_GetReadPtr(const c_FastByteRingBuffer_t* self, c_size_t* out_contiguous_len);
+uint8_t* c_FastByteRingBuffer_GetWritePtr(const c_FastByteRingBuffer_t* self, c_size_t* out_contiguous_len);
+
+
+c_index_t c_FastByteRingBuffer_IndexOfByte(const c_FastByteRingBuffer_t* self, uint8_t target);
+c_index_t c_FastByteRingBuffer_IndexOfBuffer(const c_FastByteRingBuffer_t* self, const uint8_t* pattern, c_size_t pattern_len);
+c_index_t c_FastByteRingBuffer_LastIndexOfBuffer(const c_FastByteRingBuffer_t* self, const uint8_t* pattern, c_size_t pattern_len);
+
+c_size_t c_FastByteRingBuffer_ReadUntilToken(c_FastByteRingBuffer_t* self, const uint8_t* token, c_size_t token_len, uint8_t* dest, c_size_t dest_max_len);
+c_err_t c_FastByteRingBuffer_GetAtRelative(const c_FastByteRingBuffer_t* self, c_size_t relative_offset, uint8_t* out_byte);
+c_bool_t c_FastByteRingBuffer_Is(const c_FastByteRingBuffer_t* self, c_index_t offset, uint8_t value);
+int c_FastByteRingBuffer_Memcmp(const c_FastByteRingBuffer_t* self, c_size_t offset, const uint8_t* buffer, c_size_t len);
+c_err_t c_FastByteRingBuffer_Strtoul(const c_FastByteRingBuffer_t* self, c_size_t offset, int base, unsigned long* out_value, c_size_t* out_end_offset);
+
+
+#endif /*INCLUDED_C_FASTBYTERINGBUFFER_H*/