Mercurial > hg > nginx-vendor-0-5
view src/http/ngx_http_postpone_filter_module.c @ 81:4e854e6d1986
Added tag NGINX_0_1_40 for changeset 6ae11d59d10e
author | Igor Sysoev <http://sysoev.ru> |
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date | Fri, 22 Jul 2005 00:00:00 +0400 |
parents | da9a3b14312d |
children | 71c46860eb55 |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> static ngx_int_t ngx_http_postpone_filter_init(ngx_cycle_t *cycle); static ngx_http_module_t ngx_http_postpone_filter_module_ctx = { NULL, /* preconfiguration */ NULL, /* postconfiguration */ NULL, /* create main configuration */ NULL, /* init main configuration */ NULL, /* create server configuration */ NULL, /* merge server configuration */ NULL, /* create location configuration */ NULL /* merge location configuration */ }; ngx_module_t ngx_http_postpone_filter_module = { NGX_MODULE_V1, &ngx_http_postpone_filter_module_ctx, /* module context */ NULL, /* module directives */ NGX_HTTP_MODULE, /* module type */ ngx_http_postpone_filter_init, /* init module */ NULL /* init process */ }; static ngx_http_output_body_filter_pt ngx_http_next_filter; static ngx_int_t ngx_http_postpone_filter(ngx_http_request_t *r, ngx_chain_t *in) { ngx_int_t rc; ngx_chain_t *out; ngx_http_request_t *mr; ngx_http_postponed_request_t *pr, **ppr; ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http postpone filter \"%V\" %p", &r->uri, in); if (r->connection->closed) { if (r->postponed) { r->postponed = r->postponed->next; } return NGX_ERROR; } if (r != r->connection->data || (r->postponed && in)) { if (r->postponed) { for (pr = r->postponed; pr->next; pr = pr->next) { /* void */ } ppr = pr->request ? &pr->next : NULL; } else { ppr = &r->postponed; #if (NGX_SUPPRESS_WARN) pr = NULL; #endif } if (ppr) { pr = ngx_palloc(r->pool, sizeof(ngx_http_postponed_request_t)); if (pr == NULL) { return NGX_ERROR; } *ppr = pr; pr->request = NULL; pr->out = NULL; pr->next = NULL; } if (ngx_chain_add_copy(r->pool, &pr->out, in) == NGX_ERROR) { return NGX_ERROR; } if (r != r->connection->data || r->postponed->request) { return NGX_AGAIN; } } if (r->postponed) { out = r->postponed->out; r->postponed = r->postponed->next; } else { out = in; } mr = r->main ? r->main : r; if (out == NULL && mr->out == NULL && !mr->connection->buffered) { return NGX_OK; } ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http postpone filter out \"%V\"", &r->uri); rc = ngx_http_next_filter(mr, out); if (rc == NGX_ERROR) { /* NGX_ERROR may be returned by any filter */ r->connection->closed = 1; } return rc; } static ngx_int_t ngx_http_postpone_filter_init(ngx_cycle_t *cycle) { ngx_http_next_filter = ngx_http_top_body_filter; ngx_http_top_body_filter = ngx_http_postpone_filter; return NGX_OK; }