nginx/src/event/ngx_event_proxy.h

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#ifndef _NGX_EVENT_PROXY_H_INCLUDED_
#define _NGX_EVENT_PROXY_H_INCLUDED_
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_hunk.h>
#include <ngx_file.h>
#include <ngx_files.h>
#include <ngx_connection.h>
typedef struct ngx_event_proxy_s ngx_event_proxy_t;
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typedef int (*ngx_event_proxy_input_filter_pt)(ngx_event_proxy_t *p,
ngx_chain_t *chain);
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typedef int (*ngx_event_proxy_output_filter_pt)(void *data, ngx_hunk_t *hunk);
struct ngx_event_proxy_s {
ngx_chain_t *read_hunks;
ngx_chain_t *last_read_hunk;
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ngx_chain_t *shadow_hunks;
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ngx_chain_t *in_hunks;
ngx_chain_t *last_in_hunk;
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ngx_chain_t *out_hunks;
ngx_chain_t *last_out_hunk;
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ngx_chain_t *free_hunks;
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#if 0
ngx_chain_t *last_free_hunk;
#endif
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ngx_hunk_t *busy_hunk;
ngx_event_proxy_input_filter_pt input_filter;
void *input_data;
ngx_event_proxy_output_filter_pt output_filter;
void *output_data;
unsigned cachable:1;
unsigned block_upstream:1;
unsigned upstream_eof:1;
unsigned upstream_error:1;
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unsigned downstream_eof:1;
unsigned downstream_error:1;
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int level;
int allocated;
int block_size;
int max_block_size;
off_t temp_offset;
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off_t max_temp_file_size;
int temp_file_write_size;
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ngx_connection_t *upstream;
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ngx_connection_t *downstream;
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ngx_pool_t *pool;
ngx_log_t *log;
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ngx_chain_t *preread_hunks;
#if 0
ngx_chain_t *last_preread_hunk;
#endif
int preread_size;
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ngx_file_t *temp_file;
ngx_path_t *temp_path;
int number;
int random;
char *temp_file_warn;
};
int ngx_event_proxy_read_upstream(ngx_event_proxy_t *p);
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int ngx_event_proxy_write_to_downstream(ngx_event_proxy_t *p);
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int ngx_event_proxy_write_chain_to_temp_file(ngx_event_proxy_t *p);
#endif /* _NGX_EVENT_PROXY_H_INCLUDED_ */