43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
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#ifndef IOBUFFER_H_INCLUDED
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#define IOBUFFER_H_INCLUDED
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typedef struct {
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char* iodata; //if not null, always 16 byte alignment for better AES encrypt
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int size;
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int capacity; //capacity, always >= size
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} iobuffer;
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void iobuffer_init(iobuffer* p);
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void iobuffer_deinit(iobuffer* p);
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/* 申请cap大小的缓冲 */
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int iobuffer_reserve(iobuffer* p, int cap);
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/* 获取剩余缓冲的大小 */
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int iobuffer_freesize(iobuffer* p);
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/* to后的data移到from位置 */
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void iobuffer_erase(iobuffer* p, int from, int to);
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/* 设置size=0， 清除所有data */
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void iobuffer_eraseall(iobuffer* p);
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/* 读size大小的数据到to的内存 */
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void iobuffer_read(iobuffer* p, void* to, int size);
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/* 插入字符串 */
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int iobuffer_append_string(iobuffer* p, const void* str);
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/* 插入数据 */
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int iobuffer_appendData(iobuffer* p, const void* iodata, int count);
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/* 插入格式打印：iobuffer_printf(p, "i m %s, years old", "liming", 5)*/
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int iobuffer_printf(iobuffer* p, const char *format, ...) __attribute__((__format__ (printf, 2, 3)));/* first arg is this pointer */
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// Don't call it but change your code logic
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// int iobuffer_prependData(iobuffer* p, const void* iodata, int count);
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#endif /* IOBUFFER_H_INCLUDED */
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