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view src/http/modules/perl/ngx_http_perl_module.h @ 7508:c30a20e06c21

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Range filter: fixed duplicate last buffers. In ngx_http_range_singlepart_body() special buffers where passed unmodified, including ones after the end of the range. As such, if the last buffer of a response was sent separately as a special buffer, two buffers with b->last_buf set were present in the response. In particular, this might result in a duplicate final chunk when using chunked transfer encoding (normally range filter and chunked transfer encoding are not used together, but this may happen if there are trailers in the response). This also likely to cause problems in HTTP/2. Fix is to skip all special buffers after we've sent the last part of the range requested. These special buffers are not meaningful anyway, since we set b->last_buf in the buffer with the last part of the range, and everything is expected to be flushed due to it. Additionally, ngx_http_next_body_filter() is now called even if no buffers are to be passed to it. This ensures that various write events are properly propagated through the filter chain. In particular, this fixes test failures observed with the above change and aio enabled.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 13 May 2019 22:44:49 +0300
parents d620f497c50f
children deebe988cbd7
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_HTTP_PERL_MODULE_H_INCLUDED_
#define _NGX_HTTP_PERL_MODULE_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>
#include <nginx.h>

#include <EXTERN.h>
#include <perl.h>


typedef ngx_http_request_t   *nginx;

typedef struct {
    ngx_str_t                 filename;
    ngx_str_t                 redirect_uri;
    ngx_str_t                 redirect_args;

    SV                       *next;

    ngx_uint_t                done;       /* unsigned  done:1; */

    ngx_array_t              *variables;  /* array of ngx_http_perl_var_t */

#if (NGX_HTTP_SSI)
    ngx_http_ssi_ctx_t       *ssi;
#endif
} ngx_http_perl_ctx_t;


typedef struct {
    ngx_uint_t    hash;
    ngx_str_t     name;
    ngx_str_t     value;
} ngx_http_perl_var_t;


extern ngx_module_t  ngx_http_perl_module;


/*
 * workaround for "unused variable `Perl___notused'" warning
 * when building with perl 5.6.1
 */
#ifndef PERL_IMPLICIT_CONTEXT
#undef  dTHXa
#define dTHXa(a)
#endif


extern void boot_DynaLoader(pTHX_ CV* cv);


void ngx_http_perl_handle_request(ngx_http_request_t *r);
void ngx_http_perl_sleep_handler(ngx_http_request_t *r);


#endif /* _NGX_HTTP_PERL_MODULE_H_INCLUDED_ */