67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
#ifndef __SMCC_CORE_STREAM_H__
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#define __SMCC_CORE_STREAM_H__
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#include "core_impl.h"
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#include "core_macro.h"
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#include "core_mem.h"
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#include "core_str.h"
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typedef struct core_stream core_stream_t;
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#define core_stream_eof (-1)
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struct core_stream {
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cstring_t name;
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/// @brief 读取指定数量的字符到缓冲区
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usize (*read_buf)(core_stream_t *stream, char *buffer, usize count);
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/// @brief 获取下一个字符
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int (*peek_char)(core_stream_t *stream);
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/// @brief 重置字符流位置
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void (*reset_char)(core_stream_t *stream);
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/// @brief 读取并消费下一个字符（移动流位置）
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int (*next_char)(core_stream_t *stream);
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/// @brief 释放资源
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void (*free_stream)(core_stream_t *steam);
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};
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static inline usize core_stream_read_buf(core_stream_t *self, char *buffer,
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usize count) {
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return self->read_buf(self, buffer, count);
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}
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static inline int core_stream_peek_char(core_stream_t *self) {
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return self->peek_char(self);
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}
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static inline void core_stream_reset_char(core_stream_t *self) {
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self->reset_char(self);
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}
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static inline int core_stream_next_char(core_stream_t *self) {
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return self->next_char(self);
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}
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static inline void core_stream_free_stream(core_stream_t *self) {
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self->free_stream(self);
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}
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#ifndef __SMCC_CORE_NO_MEM_STREAM__
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typedef struct core_mem_stream {
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core_stream_t stream;
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const char *data;
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usize data_length;
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usize curr_pos;
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usize peek_pos;
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cbool owned;
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} core_mem_stream_t;
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core_stream_t *core_mem_stream_init(core_mem_stream_t *stream, const char *data,
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usize length, cbool need_copy);
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#endif
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#endif /* __SMCC_CORE_STREAM_H__ */
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