41 lines
930 B
Markdown
41 lines
930 B
Markdown
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# ngx-rbuf
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---
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## Instructions
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A recycled chainbuf for nginx
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## API
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**header file**
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For using this API, You should include the header file as below:
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#include "ngx_rbuf.h"
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**ngx\_get\_chainbuf**
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ngx_chain_t *ngx_get_chainbuf(size_t size, ngx_flag_t alloc_rbuf);
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Interface for get a chain with buf, if alloc\_rbuf is set to 1, rbuf will alloc a buf with size set in paras; if alloc\_rbuf is set to 0, size is nonsense here.
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Notice, for recycled buf better memory manager, the size should be same for the same usage. Such as chunk size in nginx rtmp module.
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**ngx\_put\_chainbuf**
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void ngx_put_chainbuf(ngx_chain_t *cl);
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Interface for recycle chain with buf alloc from rbuf
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**ngx\_rbuf\_statee**
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ngx_chain_t *ngx_rbuf_state(ngx_http_request_t *r);
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Interface for query rbuf state, result:
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ngx_rbuf_nalloc_node: 1
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ngx_rbuf_nalloc_buf: 1
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ngx_rbuf_nfree_buf: 1
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ngx_rbuf_nalloc_chain: 3
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ngx_rbuf_nalloc_chain: 3
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