Question

如何xcode学习nginx源码

Answer 1

1、基本结构
先来学习一下nginx内存池的几个主要数据结构：[见：./src/core/ngx_palloc.h/.c]
ngx_pool_data_t（内存池数据块结构）
1: typedef struct {
2: u_char *last;
3: u_char *end;
4: ngx_pool_t *next;
5: ngx_uint_t failed;
6: } ngx_pool_data_t;

ngx_pool_s（内存池头部结构）
1: struct ngx_pool_s {
2: ngx_pool_data_t d;
3: size_t max;
4: ngx_pool_t *current;
5: ngx_chain_t *chain;
6: ngx_pool_large_t *large;
7: ngx_pool_cleanup_t *cleanup;
8: ngx_log_t *log;
9: };