Created
December 15, 2015 09:59
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Nginx 数据结构和方法
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ngx_chain_t
是与 ngx_buf_t
配合使用的链表数据结构
typedef struct ngx_chain_s ngx_chain_t;
struct ngx_chain_s{
ngx_buf_t *buf; // 指向当前的 ngx_buf_t 缓冲区
ngx_chain_t *next; // 指向下一个ngx_chain_t。如果这是最后一个ngx_chain_t,则需要把next置为NULL。
};
在向用户发送 HTTP 包体时,就要传入 ngx_chain_t 链表对象,注意,如果是最后一个 ngx_chain_t,那么必须将 next 置为 NULL,否则永远不会发送成功,而且这个请求将一直不会结束(Nginx框架的要求)。
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缓冲区相关的数据结构:
ngx_buf_t