{"id":617,"date":"2011-03-17T11:34:03","date_gmt":"2011-03-17T03:34:03","guid":{"rendered":"http:\/\/www.strongd.net\/?p=617"},"modified":"2011-03-17T11:34:03","modified_gmt":"2011-03-17T03:34:03","slug":"nginx%e6%ba%90%e7%a0%81%e5%88%86%e6%9e%90-%e5%86%85%e5%ad%98%e6%b1%a0","status":"publish","type":"post","link":"https:\/\/www.strongd.net\/?p=617","title":{"rendered":"Nginx\u6e90\u7801\u5206\u6790-\u5185\u5b58\u6c60"},"content":{"rendered":"

Nginx\u7684\u5185\u5b58\u6c60\u5b9e\u73b0\u5f97\u5f88\u7cbe\u5de7\uff0c\u4ee3\u7801\u4e5f\u5f88\u7b80\u6d01\u3002\u603b\u7684\u6765\u8bf4\uff0c\u6240\u6709\u7684\u5185\u5b58\u6c60\u57fa\u672c\u90fd\u4e00\u4e2a\u5b97\u65e8\uff1a\u7533\u8bf7\u5927\u5757\u5185\u5b58\uff0c\u907f\u514d\u201c\u7ec6\u6c34\u957f\u6d41\u201d\u3002<\/p>\n

\u4e00\u3001\u521b\u5efa\u4e00\u4e2a\u5185\u5b58\u6c60<\/h1>\n

nginx\u5185\u5b58\u6c60\u4e3b\u8981\u6709\u4e0b\u9762\u4e24\u4e2a\u7ed3\u6784\u6765\u7ef4\u62a4\uff0c\u4ed6\u4eec\u5206\u522b\u7ef4\u62a4\u4e86\u5185\u5b58\u6c60\u7684\u5934\u90e8\u548c\u6570\u636e\u90e8\u3002\u6b64\u5904\u6570\u636e\u90e8\u5c31\u662f\u4f9b\u7528\u6237\u5206\u914d\u5c0f\u5757\u5185\u5b58\u7684\u5730\u65b9\u3002<\/p>\n

\/\/\u8be5\u7ed3\u6784\u7528\u6765\u7ef4\u62a4\u5185\u5b58\u6c60\u7684\u6570\u636e\u5757\uff0c\u4f9b\u7528\u6237\u5206\u914d\u4e4b\u7528\u3002\r\ntypedef struct {\r\n    u_char               *last; \t\/\/\u5f53\u524d\u5185\u5b58\u5206\u914d\u7ed3\u675f\u4f4d\u7f6e\uff0c\u5373\u4e0b\u4e00\u6bb5\u53ef\u5206\u914d\u5185\u5b58\u7684\u8d77\u59cb\u4f4d\u7f6e\r\n    u_char               *end;  \t\/\/\u5185\u5b58\u6c60\u7ed3\u675f\u4f4d\u7f6e\r\n    ngx_pool_t           *next; \t\/\/\u94fe\u63a5\u5230\u4e0b\u4e00\u4e2a\u5185\u5b58\u6c60\r\n    ngx_uint_t            failed; \t\/\/\u7edf\u8ba1\u8be5\u5185\u5b58\u6c60\u4e0d\u80fd\u6ee1\u8db3\u5206\u914d\u8bf7\u6c42\u7684\u6b21\u6570\r\n} ngx_pool_data_t;\r\n\/\/\u8be5\u7ed3\u6784\u7ef4\u62a4\u6574\u4e2a\u5185\u5b58\u6c60\u7684\u5934\u90e8\u4fe1\u606f\u3002\r\nstruct ngx_pool_s {\r\n    ngx_pool_data_t       d; \t\t\/\/\u6570\u636e\u5757\r\n    size_t                max;\t\t\/\/\u6570\u636e\u5757\u7684\u5927\u5c0f\uff0c\u5373\u5c0f\u5757\u5185\u5b58\u7684\u6700\u5927\u503c\r\n    ngx_pool_t           *current;\t\/\/\u4fdd\u5b58\u5f53\u524d\u5185\u5b58\u6c60\r\n    ngx_chain_t          *chain;\t\/\/\u53ef\u4ee5\u6302\u4e00\u4e2achain\u7ed3\u6784\r\n    ngx_pool_large_t     *large;\t\/\/\u5206\u914d\u5927\u5757\u5185\u5b58\u7528\uff0c\u5373\u8d85\u8fc7max\u7684\u5185\u5b58\u8bf7\u6c42\r\n    ngx_pool_cleanup_t   *cleanup;\t\/\/\u6302\u8f7d\u4e00\u4e9b\u5185\u5b58\u6c60\u91ca\u653e\u7684\u65f6\u5019\uff0c\u540c\u65f6\u91ca\u653e\u7684\u8d44\u6e90\u3002\r\n    ngx_log_t            *log;\r\n};<\/pre>\n
\u6709\u4e86\u4e0a\u9762\u7684\u4e24\u4e2a\u7ed3\u6784\uff0c\u5c31\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5185\u5b58\u6c60\u4e86\uff0cnginx\u7528\u6765\u521b\u5efa\u4e00\u4e2a\u5185\u5b58\u6c60\u7684\u63a5\u53e3\u662f\uff1angx_pool_t *ngx_create_pool(size_t size, ngx_log_t *log)\uff08\u4f4d\u4e8esrc\/core\/ngx_palloc.c\u4e2d\uff09;\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u5c31\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u4e3asize\u7684\u5185\u5b58\u6c60\u4e86\u3002\u8fd9\u91cc\uff0c\u6211\u7528\u5185\u5b58\u6c60\u7684\u7ed3\u6784\u56fe\u6765\u5c55\u793a\uff0c\u5c31\u4e0d\u505a\u5177\u4f53\u7684\u4ee3\u7801\u5206\u6790\u4e86\u3002
\n\"\"<\/a>
\nngx_create_pool\u63a5\u53e3\u51fd\u6570\u5c31\u662f\u5206\u914d\u4e0a\u56fe\u8fd9\u6837\u7684\u4e00\u5927\u5757\u5185\u5b58\uff0c\u7136\u540e\u521d\u59cb\u5316\u597d\u5404\u4e2a\u5934\u90e8\u5b57\u6bb5\uff08\u4e0a\u56fe\u4e2d\u7684\u5f69\u8272\u90e8\u5206\uff09\u3002\u7ea2\u8272\u8868\u793a\u7684\u56db\u4e2a\u5b57\u6bb5\u5c31\u662f\u6765\u81ea\u4e8e\u4e0a\u8ff0\u7684\u7b2c\u4e00\u4e2a\u7ed3\u6784\uff0c\u7ef4\u62a4\u6570\u636e\u90e8\u5206\uff0c\u7531\u56fe\u53ef\u77e5\uff1alast\u662f\u7528\u6237\u4ece\u5185\u5b58\u6c60\u5206\u914d\u65b0\u5185\u5b58\u7684\u5f00\u59cb\u4f4d\u7f6e\uff0cend\u662f\u8fd9\u5757\u5185\u5b58\u6c60\u7684\u7ed3\u675f\u4f4d\u7f6e\uff0c\u6240\u6709\u5206\u914d\u7684\u5185\u5b58\u90fd\u4e0d\u80fd\u8d85\u8fc7end\u3002\u84dd\u8272\u8868\u793a\u7684max\u5b57\u6bb5\u7684\u503c\u7b49\u4e8e\u6574\u4e2a\u6570\u636e\u90e8\u5206\u7684\u957f\u5ea6\uff0c\u7528\u6237\u8bf7\u6c42\u7684\u5185\u5b58\u5927\u4e8emax\u65f6\uff0c\u5c31\u8ba4\u4e3a\u7528\u6237\u8bf7\u6c42\u7684\u662f\u4e00\u4e2a\u5927\u5185\u5b58\uff0c\u6b64\u65f6\u9700\u8981\u5728\u7d2b\u8272\u8868\u793a\u7684large\u5b57\u6bb5\u4e0b\u9762\u5355\u72ec\u5206\u914d\uff1b\u7528\u6237\u8bf7\u6c42\u7684\u5185\u5b58\u4e0d\u5927\u4e8emax\u7684\u8bdd\uff0c\u5c31\u662f\u5c0f\u5185\u5b58\u7533\u8bf7\uff0c\u76f4\u63a5\u5728\u6570\u636e\u90e8\u5206\u5206\u914d\uff0c\u6b64\u65f6\u5c06\u4f1a\u79fb\u52a8last\u6307\u9488\u3002<\/p>\n
\u4e8c\u3001\u5206\u914d\u5c0f\u5757\u5185\u5b58(size <= max)<\/h1>\n
\u4e0a\u9762\u521b\u5efa\u597d\u4e86\u4e00\u4e2a\u53ef\u7528\u7684\u5185\u5b58\u6c60\u4e86\uff0c\u4e5f\u63d0\u5230\u4e86\u5c0f\u5757\u5185\u5b58\u7684\u5206\u914d\u95ee\u9898\u3002nginx\u63d0\u4f9b\u7ed9\u7528\u6237\u4f7f\u7528\u7684\u5185\u5b58\u5206\u914d\u63a5\u53e3\u6709\uff1a
\nvoid *ngx_palloc(ngx_pool_t *pool, size_t size);
\nvoid *ngx_pnalloc(ngx_pool_t *pool, size_t size);
\nvoid *ngx_pcalloc(ngx_pool_t *pool, size_t size);
\nvoid *ngx_pmemalign(ngx_pool_t *pool, size_t size, size_t alignment);<\/p>\n
ngx_palloc\u548cngx_pnalloc\u90fd\u662f\u4ece\u5185\u5b58\u6c60\u91cc\u5206\u914dsize\u5927\u5c0f\u5185\u5b58\uff0c\u81f3\u4e8e\u5206\u5f97\u7684\u662f\u5c0f\u5757\u5185\u5b58\u8fd8\u662f\u5927\u5757\u5185\u5b58\uff0c\u5c06\u53d6\u51b3\u4e8esize\u7684\u5927\u5c0f\uff1b\u4ed6\u4eec\u7684\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\uff0cpalloc\u53d6\u5f97\u7684\u5185\u5b58\u662f\u5bf9\u9f50\u7684\uff0cpnalloc\u5219\u5426\u3002ngx_pcalloc\u662f\u76f4\u63a5\u8c03\u7528palloc\u5206\u914d\u597d\u5185\u5b58\uff0c\u7136\u540e\u8fdb\u884c\u4e00\u6b210\u521d\u59cb\u5316\u64cd\u4f5c\u3002ngx_pmemalign\u5c06\u5728\u5206\u914dsize\u5927\u5c0f\u7684\u5185\u5b58\u5e76\u6309alignment\u5bf9\u9f50\uff0c\u7136\u540e\u6302\u5230large\u5b57\u6bb5\u4e0b\uff0c\u5f53\u505a\u5927\u5757\u5185\u5b58\u5904\u7406\u3002\u4e0b\u9762\u7528\u56fe\u5f62\u5c55\u793a\u4e00\u4e0b\u5206\u914d\u5c0f\u5757\u5185\u5b58\u7684\u6a21\u578b\uff1a
\n\"\"<\/a>
\n\u4e0a\u56fe\u8fd9\u4e2a\u5185\u5b58\u6c60\u6a21\u578b\u662f\u7531\u4e0a3\u4e2a\u5c0f\u5185\u5b58\u6c60\u6784\u6210\u7684\uff0c\u7531\u4e8e\u7b2c\u4e00\u4e2a\u5185\u5b58\u6c60\u4e0a\u5269\u4f59\u7684\u5185\u5b58\u4e0d\u591f\u5206\u914d\u4e86\uff0c\u4e8e\u662f\u5c31\u521b\u5efa\u4e86\u7b2c\u4e8c\u4e2a\u65b0\u7684\u5185\u5b58\u6c60\uff0c\u7b2c\u4e09\u4e2a\u5185\u5b58\u6c60\u662f\u7531\u4e8e\u524d\u9762\u4e24\u4e2a\u5185\u5b58\u6c60\u7684\u5269\u4f59\u90e8\u5206\u90fd\u4e0d\u591f\u5206\u914d\uff0c\u6240\u4ee5\u521b\u5efa\u4e86\u7b2c\u4e09\u4e2a\u5185\u5b58\u6c60\u6765\u6ee1\u8db3\u7528\u6237\u7684\u9700\u6c42\u3002\u7531\u56fe\u53ef\u89c1\uff1a\u6240\u6709\u7684\u5c0f\u5185\u5b58\u6c60\u662f\u7531\u4e00\u4e2a\u5355\u5411\u94fe\u8868\u7ef4\u62a4\u5728\u4e00\u8d77\u7684\u3002\u8fd9\u91cc\u8fd8\u6709\u4e24\u4e2a\u5b57\u6bb5\u9700\u8981\u5173\u6ce8\uff0cfailed\u548ccurrent\u5b57\u6bb5\u3002failed\u8868\u793a\u7684\u662f\u5f53\u524d\u8fd9\u4e2a\u5185\u5b58\u6c60\u7684\u5269\u4f59\u53ef\u7528\u5185\u5b58\u4e0d\u80fd\u6ee1\u8db3\u7528\u6237\u5206\u914d\u8bf7\u6c42\u7684\u6b21\u6570\uff0c\u5373\u662f\u8bf4\uff1a\u4e00\u4e2a\u5206\u914d\u8bf7\u6c42\u5230\u6765\u540e\uff0c\u5728\u8fd9\u4e2a\u5185\u5b58\u6c60\u4e0a\u5206\u914d\u4e0d\u5230\u60f3\u8981\u7684\u5185\u5b58\uff0c\u90a3\u4e48\u5c31failed\u5c31\u4f1a\u589e\u52a01\uff1b\u8fd9\u4e2a\u5206\u914d\u8bf7\u6c42\u5c06\u4f1a\u9012\u4ea4\u7ed9\u4e0b\u4e00\u4e2a\u5185\u5b58\u6c60\u53bb\u5904\u7406\uff0c\u5982\u679c\u4e0b\u4e00\u4e2a\u5185\u5b58\u6c60\u4e5f\u4e0d\u80fd\u6ee1\u8db3\uff0c\u90a3\u4e48\u5b83\u7684failed\u4e5f\u4f1a\u52a01\uff0c\u7136\u540e\u5c06\u8bf7\u6c42\u7ee7\u7eed\u5f80\u4e0b\u4f20\u9012\uff0c\u76f4\u5230\u6ee1\u8db3\u8bf7\u6c42\u4e3a\u6b62\uff08\u5982\u679c\u6ca1\u6709\u73b0\u6210\u7684\u5185\u5b58\u6c60\u6765\u6ee1\u8db3\uff0c\u4f1a\u518d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5185\u5b58\u6c60\uff09\u3002current\u5b57\u6bb5\u4f1a\u968f\u7740failed\u7684\u589e\u52a0\u800c\u53d1\u751f\u6539\u53d8\uff0c\u5982\u679ccurrent\u6307\u5411\u7684\u5185\u5b58\u6c60\u7684failed\u8fbe\u5230\u4e864\u7684\u8bdd\uff0ccurrent\u5c31\u6307\u5411\u4e0b\u4e00\u4e2a\u5185\u5b58\u6c60\u4e86\u3002\u731c\u6d4b\uff1a4\u8fd9\u4e2a\u503c\u5e94\u8be5\u662f\u4f5c\u8005\u7684\u7ecf\u9a8c\u503c\uff0c\u6216\u8005\u662f\u4e00\u4e2a\u7edf\u8ba1\u503c\u3002<\/p>\n
\u4e09\u3001\u5927\u5757\u5185\u5b58\u7684\u5206\u914d(size > max)<\/h1>\n
\u5927\u5757\u5185\u5b58\u7684\u5206\u914d\u8bf7\u6c42\u4e0d\u4f1a\u76f4\u63a5\u5728\u5185\u5b58\u6c60\u4e0a\u5206\u914d\u5185\u5b58\u6765\u6ee1\u8db3\uff0c\u800c\u662f\u76f4\u63a5\u5411\u64cd\u4f5c\u7cfb\u7edf\u7533\u8bf7\u8fd9\u4e48\u4e00\u5757\u5185\u5b58\uff08\u5c31\u50cf\u76f4\u63a5\u4f7f\u7528malloc\u5206\u914d\u5185\u5b58\u4e00\u6837\uff09\uff0c\u7136\u540e\u5c06\u8fd9\u5757\u5185\u5b58\u6302\u5230\u5185\u5b58\u6c60\u5934\u90e8\u7684large\u5b57\u6bb5\u4e0b\u3002\u5185\u5b58\u6c60\u7684\u4f5c\u7528\u5728\u4e8e\u89e3\u51b3\u5c0f\u5757\u5185\u5b58\u6c60\u7684\u9891\u7e41\u7533\u8bf7\u95ee\u9898\uff0c\u5bf9\u4e8e\u8fd9\u79cd\u5927\u5757\u5185\u5b58\uff0c\u662f\u53ef\u4ee5\u5fcd\u53d7\u76f4\u63a5\u7533\u8bf7\u7684\u3002\u540c\u6837\uff0c\u7528\u56fe\u5f62\u5c55\u793a\u5927\u5757\u5185\u5b58\u7533\u8bf7\u6a21\u578b\uff1a
\n\"\"<\/a>
\n\u6ce8\u610f\u6bcf\u5757\u5927\u5185\u5b58\u90fd\u5bf9\u5e94\u6709\u4e00\u4e2a\u5934\u90e8\u7ed3\u6784\uff08next&alloc\uff09\uff0c\u8fd9\u4e2a\u5934\u90e8\u7ed3\u6784\u662f\u7528\u6765\u5c06\u6240\u6709\u5927\u5185\u5b58\u4e32\u6210\u4e00\u4e2a\u94fe\u8868\u7528\u7684\u3002\u8fd9\u4e2a\u5934\u90e8\u7ed3\u6784\u4e0d\u662f\u76f4\u63a5\u5411\u64cd\u4f5c\u7cfb\u7edf\u7533\u8bf7\u7684\uff0c\u800c\u662f\u5f53\u505a\u5c0f\u5757\u5185\u5b58\uff08\u5934\u90e8\u7ed3\u6784\u6ca1\u51e0\u4e2a\u5b57\u8282\uff09\u76f4\u63a5\u5728\u5185\u5b58\u6c60\u91cc\u7533\u8bf7\u7684\u3002\u8fd9\u6837\u7684\u5927\u5757\u5185\u5b58\u5728\u4f7f\u7528\u5b8c\u540e\uff0c\u53ef\u80fd\u9700\u8981\u7b2c\u4e00\u65f6\u95f4\u91ca\u653e\uff0c\u8282\u7701\u5185\u5b58\u7a7a\u95f4\uff0c\u56e0\u6b64nginx\u63d0\u4f9b\u4e86\u63a5\u53e3\u51fd\u6570\uff1angx_int_t ngx_pfree(ngx_pool_t *pool, void *p)\uff1b\u6b64\u51fd\u6570\u4e13\u95e8\u7528\u6765\u91ca\u653e\u67d0\u4e2a\u5185\u5b58\u6c60\u4e0a\u7684\u67d0\u4e2a\u5927\u5757\u5185\u5b58\uff0cp\u5c31\u662f\u5927\u5185\u5b58\u7684\u5730\u5740\u3002ngx_pfree\u53ea\u4f1a\u91ca\u653e\u5927\u5185\u5b58\uff0c\u4e0d\u4f1a\u91ca\u653e\u5176\u5bf9\u5e94\u7684\u5934\u90e8\u7ed3\u6784\uff0c\u6bd5\u7adf\u5934\u90e8\u7ed3\u6784\u662f\u5f53\u505a\u5c0f\u5185\u5b58\u5728\u5185\u5b58\u6c60\u91cc\u7533\u8bf7\u7684\uff1b\u9057\u7559\u4e0b\u6765\u7684\u5934\u90e8\u7ed3\u6784\u4f1a\u4f5c\u4e0b\u4e00\u6b21\u7533\u8bf7\u5927\u5185\u5b58\u4e4b\u7528\u3002<\/p>\n
\u56db\u3001cleanup\u8d44\u6e90<\/h1>\n
\"\"<\/a>
\n\u53ef\u4ee5\u770b\u5230\u6240\u6709\u6302\u8f7d\u5728\u5185\u5b58\u6c60\u4e0a\u7684\u8d44\u6e90\u5c06\u5f62\u6210\u4e00\u4e2a\u5faa\u73af\u94fe\u8868\uff0c\u4e00\u8def\u8d70\u6765\uff0c\u53d1\u73b0\u94fe\u8868\u8fd9\u79cd\u770b\u4f3c\u7b80\u5355\u7684\u6570\u636e\u7ed3\u6784\u5374\u88ab\u9891\u7e41\u4f7f\u7528\u3002\u7531\u56fe\u53ef\u77e5\uff0c\u6bcf\u4e2a\u9700\u8981\u6e05\u7406\u7684\u8d44\u6e90\u90fd\u5bf9\u5e94\u6709\u4e00\u4e2a\u5934\u90e8\u7ed3\u6784\uff0c\u8fd9\u4e2a\u7ed3\u6784\u4e2d\u6709\u4e00\u4e2a\u5173\u952e\u7684\u5b57\u6bb5handler\uff0chandler\u662f\u4e00\u4e2a\u51fd\u6570\u6307\u9488\uff0c\u5728\u6302\u8f7d\u4e00\u4e2a\u8d44\u6e90\u5230\u5185\u5b58\u6c60\u4e0a\u7684\u65f6\u5019\uff0c\u540c\u65f6\u4e5f\u4f1a\u6ce8\u518c\u4e00\u4e2a\u6e05\u7406\u8d44\u6e90\u7684\u51fd\u6570\u5230\u8fd9\u4e2ahandler\u4e0a\u3002\u5373\u662f\u8bf4\uff0c\u5185\u5b58\u6c60\u5728\u6e05\u7406cleanup\u7684\u65f6\u5019\uff0c\u5c31\u662f\u8c03\u7528\u8fd9\u4e2ahandler\u6765\u6e05\u7406\u5bf9\u5e94\u7684\u8d44\u6e90\u3002\u6bd4\u5982\uff1a\u6211\u4eec\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5f00\u6253\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u4f5c\u4e3a\u8d44\u6e90\u6302\u8f7d\u5230\u5185\u5b58\u6c60\u4e0a\uff0c\u540c\u65f6\u63d0\u4f9b\u4e00\u4e2a\u5173\u95ed\u6587\u4ef6\u63cf\u8ff0\u7684\u51fd\u6570\u6ce8\u518c\u5230handler\u4e0a\uff0c\u90a3\u4e48\u5185\u5b58\u6c60\u5728\u91ca\u653e\u7684\u65f6\u5019\uff0c\u5c31\u4f1a\u8c03\u7528\u6211\u4eec\u63d0\u4f9b\u7684\u5173\u95ed\u6587\u4ef6\u51fd\u6570\u6765\u5904\u7406\u6587\u4ef6\u63cf\u8ff0\u7b26\u8d44\u6e90\u4e86\u3002<\/p>\n
\u4e94\u3001\u5185\u5b58\u7684\u91ca\u653e<\/h1>\n
nginx\u53ea\u63d0\u4f9b\u7ed9\u4e86\u7528\u6237\u7533\u8bf7\u5185\u5b58\u7684\u63a5\u53e3\uff0c\u5374\u6ca1\u6709\u91ca\u653e\u5185\u5b58\u7684\u63a5\u53e3\uff0c\u90a3\u4e48nginx\u662f\u5982\u4f55\u5b8c\u6210\u5185\u5b58\u91ca\u653e\u7684\u5462\uff1f\u603b\u4e0d\u80fd\u4e00\u76f4\u7533\u8bf7\uff0c\u7528\u4e0d\u91ca\u653e\u554a\u3002\u9488\u5bf9\u8fd9\u4e2a\u95ee\u9898\uff0cnginx\u5229\u7528\u4e86web server\u5e94\u7528\u7684\u7279\u6b8a\u573a\u666f\u6765\u5b8c\u6210\uff1b\u4e00\u4e2aweb server\u603b\u662f\u4e0d\u505c\u7684\u63a5\u53d7connection\u548crequest\uff0c\u6240\u4ee5nginx\u5c31\u5c06\u5185\u5b58\u6c60\u5206\u4e86\u4e0d\u540c\u7684\u7b49\u7ea7\uff0c\u6709\u8fdb\u7a0b\u7ea7\u7684\u5185\u5b58\u6c60\u3001connection\u7ea7\u7684\u5185\u5b58\u6c60\u3001request\u7ea7\u7684\u5185\u5b58\u6c60\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u521b\u5efa\u597d\u4e00\u4e2aworker\u8fdb\u7a0b\u7684\u65f6\u5019\uff0c\u540c\u65f6\u4e3a\u8fd9\u4e2aworker\u8fdb\u7a0b\u521b\u5efa\u4e00\u4e2a\u5185\u5b58\u6c60\uff0c\u5f85\u6709\u65b0\u7684\u8fde\u63a5\u5230\u6765\u540e\uff0c\u5c31\u5728worker\u8fdb\u7a0b\u7684\u5185\u5b58\u6c60\u4e0a\u4e3a\u8be5\u8fde\u63a5\u521b\u5efa\u8d77\u4e00\u4e2a\u5185\u5b58\u6c60\uff1b\u8fde\u63a5\u4e0a\u5230\u6765\u4e00\u4e2arequest\u540e\uff0c\u53c8\u5728\u8fde\u63a5\u7684\u5185\u5b58\u6c60\u4e0a\u4e3arequest\u521b\u5efa\u8d77\u4e00\u4e2a\u5185\u5b58\u6c60\u3002\u8fd9\u6837\uff0c\u5728request\u88ab\u5904\u7406\u5b8c\u540e\uff0c\u5c31\u4f1a\u91ca\u653erequest\u7684\u6574\u4e2a\u5185\u5b58\u6c60\uff0c\u8fde\u63a5\u65ad\u5f00\u540e\uff0c\u5c31\u4f1a\u91ca\u653e\u8fde\u63a5\u7684\u5185\u5b58\u6c60\u3002\u56e0\u800c\uff0c\u5c31\u4fdd\u8bc1\u4e86\u5185\u5b58\u6709\u5206\u914d\u4e5f\u6709\u91ca\u653e\u3002<\/p>\n
\u603b\u7ed3\uff1a\u901a\u8fc7\u5185\u5b58\u7684\u5206\u914d\u548c\u91ca\u653e\u53ef\u4ee5\u770b\u51fa\uff0cnginx\u53ea\u662f\u5c06\u5c0f\u5757\u5185\u5b58\u7684\u7533\u8bf7\u805a\u96c6\u5230\u4e00\u8d77\u7533\u8bf7\uff0c\u7136\u540e\u4e00\u8d77\u91ca\u653e\u3002\u907f\u514d\u4e86\u9891\u7e41\u7533\u8bf7\u5c0f\u5185\u5b58\uff0c\u964d\u4f4e\u5185\u5b58\u788e\u7247\u7684\u4ea7\u751f\u7b49\u95ee\u9898<\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
Nginx\u7684\u5185\u5b58\u6c60\u5b9e\u73b0\u5f97\u5f88\u7cbe\u5de7\uff0c\u4ee3\u7801\u4e5f\u5f88\u7b80\u6d01\u3002\u603b\u7684\u6765\u8bf4\uff0c\u6240\u6709\u7684\u5185\u5b58\u6c60\u57fa\u672c\u90fd\u4e00\u4e2a\u5b97\u65e8\uff1a\u7533\u8bf7\u5927\u5757\u5185\u5b58\uff0c\u907f\u514d\u201c\u7ec6\u6c34\u957f\u6d41\u201d\u3002 \u4e00\u3001\u521b\u5efa\u4e00\u4e2a\u5185\u5b58\u6c60 nginx\u5185\u5b58\u6c60\u4e3b\u8981\u6709\u4e0b\u9762\u4e24\u4e2a\u7ed3\u6784\u6765\u7ef4\u62a4\uff0c\u4ed6\u4eec\u5206\u522b\u7ef4\u62a4\u4e86\u5185\u5b58\u6c60\u7684\u5934\u90e8\u548c\u6570\u636e\u90e8\u3002\u6b64\u5904\u6570\u636e\u90e8\u5c31\u662f\u4f9b\u7528\u6237\u5206\u914d\u5c0f\u5757\u5185\u5b58\u7684\u5730\u65b9\u3002 \/\/\u8be5\u7ed3\u6784\u7528\u6765\u7ef4\u62a4\u5185\u5b58\u6c60\u7684\u6570\u636e\u5757\uff0c\u4f9b\u7528\u6237\u5206\u914d\u4e4b\u7528\u3002 typedef struct { u_char *last; \/\/\u5f53\u524d\u5185\u5b58\u5206\u914d\u7ed3\u675f\u4f4d\u7f6e\uff0c\u5373\u4e0b\u4e00\u6bb5\u53ef\u5206\u914d\u5185\u5b58\u7684\u8d77\u59cb\u4f4d\u7f6e u_char *end; \/\/\u5185\u5b58\u6c60\u7ed3\u675f\u4f4d\u7f6e ngx_pool_t *next; \/\/\u94fe\u63a5\u5230\u4e0b\u4e00\u4e2a\u5185\u5b58\u6c60 ngx_uint_t failed; \/\/\u7edf\u8ba1\u8be5\u5185\u5b58\u6c60\u4e0d\u80fd\u6ee1\u8db3\u5206\u914d\u8bf7\u6c42\u7684\u6b21\u6570 } ngx_pool_data_t; \/\/\u8be5\u7ed3\u6784\u7ef4\u62a4\u6574\u4e2a\u5185\u5b58\u6c60\u7684\u5934\u90e8\u4fe1\u606f\u3002 struct ngx_pool_s { ngx_pool_data_t d; \/\/\u6570\u636e\u5757 size_t max; \/\/\u6570\u636e\u5757\u7684\u5927\u5c0f\uff0c\u5373\u5c0f\u5757\u5185\u5b58\u7684\u6700\u5927\u503c ngx_pool_t *current; \/\/\u4fdd\u5b58\u5f53\u524d\u5185\u5b58\u6c60 ngx_chain_t *chain; \/\/\u53ef\u4ee5\u6302\u4e00\u4e2achain\u7ed3\u6784 ngx_pool_large_t *large; \/\/\u5206\u914d\u5927\u5757\u5185\u5b58\u7528\uff0c\u5373\u8d85\u8fc7max\u7684\u5185\u5b58\u8bf7\u6c42 ngx_pool_cleanup_t *cleanup; \/\/\u6302\u8f7d\u4e00\u4e9b\u5185\u5b58\u6c60\u91ca\u653e\u7684\u65f6\u5019\uff0c\u540c\u65f6\u91ca\u653e\u7684\u8d44\u6e90\u3002 ngx_log_t *log; }; \u6709\u4e86\u4e0a\u9762\u7684\u4e24\u4e2a\u7ed3\u6784\uff0c\u5c31\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5185\u5b58\u6c60\u4e86\uff0cnginx\u7528\u6765\u521b\u5efa\u4e00\u4e2a\u5185\u5b58\u6c60\u7684\u63a5\u53e3\u662f\uff1angx_pool_t *ngx_create_pool(size_t size, ngx_log_t *log)\uff08\u4f4d\u4e8esrc\/core\/ngx_palloc.c\u4e2d\uff09;\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\u5c31\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u4e3asize\u7684\u5185\u5b58\u6c60\u4e86\u3002\u8fd9\u91cc\uff0c\u6211\u7528\u5185\u5b58\u6c60\u7684\u7ed3\u6784\u56fe\u6765\u5c55\u793a\uff0c\u5c31\u4e0d\u505a\u5177\u4f53\u7684\u4ee3\u7801\u5206\u6790\u4e86\u3002 ngx_create_pool\u63a5\u53e3\u51fd\u6570\u5c31\u662f\u5206\u914d\u4e0a\u56fe\u8fd9\u6837\u7684\u4e00\u5927\u5757\u5185\u5b58\uff0c\u7136\u540e\u521d\u59cb\u5316\u597d\u5404\u4e2a\u5934\u90e8\u5b57\u6bb5\uff08\u4e0a\u56fe\u4e2d\u7684\u5f69\u8272\u90e8\u5206\uff09\u3002\u7ea2\u8272\u8868\u793a\u7684\u56db\u4e2a\u5b57\u6bb5\u5c31\u662f\u6765\u81ea\u4e8e\u4e0a\u8ff0\u7684\u7b2c\u4e00\u4e2a\u7ed3\u6784\uff0c\u7ef4\u62a4\u6570\u636e\u90e8\u5206\uff0c\u7531\u56fe\u53ef\u77e5\uff1alast\u662f\u7528\u6237\u4ece\u5185\u5b58\u6c60\u5206\u914d\u65b0\u5185\u5b58\u7684\u5f00\u59cb\u4f4d\u7f6e\uff0cend\u662f\u8fd9\u5757\u5185\u5b58\u6c60\u7684\u7ed3\u675f\u4f4d\u7f6e\uff0c\u6240\u6709\u5206\u914d\u7684\u5185\u5b58\u90fd\u4e0d\u80fd\u8d85\u8fc7end\u3002\u84dd\u8272\u8868\u793a\u7684max\u5b57\u6bb5\u7684\u503c\u7b49\u4e8e\u6574\u4e2a\u6570\u636e\u90e8\u5206\u7684\u957f\u5ea6\uff0c\u7528\u6237\u8bf7\u6c42\u7684\u5185\u5b58\u5927\u4e8emax\u65f6\uff0c\u5c31\u8ba4\u4e3a\u7528\u6237\u8bf7\u6c42\u7684\u662f\u4e00\u4e2a\u5927\u5185\u5b58\uff0c\u6b64\u65f6\u9700\u8981\u5728\u7d2b\u8272\u8868\u793a\u7684large\u5b57\u6bb5\u4e0b\u9762\u5355\u72ec\u5206\u914d\uff1b\u7528\u6237\u8bf7\u6c42\u7684\u5185\u5b58\u4e0d\u5927\u4e8emax\u7684\u8bdd\uff0c\u5c31\u662f\u5c0f\u5185\u5b58\u7533\u8bf7\uff0c\u76f4\u63a5\u5728\u6570\u636e\u90e8\u5206\u5206\u914d\uff0c\u6b64\u65f6\u5c06\u4f1a\u79fb\u52a8last\u6307\u9488\u3002 \u4e8c\u3001\u5206\u914d\u5c0f\u5757\u5185\u5b58(size <= max) … Continue reading Nginx\u6e90\u7801\u5206\u6790-\u5185\u5b58\u6c60<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[13],"class_list":["post-617","post","type-post","status-publish","format-standard","hentry","category-linux","tag-nginx"],"_links":{"self":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/617","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=617"}],"version-history":[{"count":2,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/617\/revisions"}],"predecessor-version":[{"id":619,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/617\/revisions\/619"}],"wp:attachment":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=617"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=617"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}