view src/core/ngx_thread_pool.h @ 7525:575480d3fd01

Perl: propagate errors. When an error happens, the ctx->error bit is now set, and croak() is called to terminate further processing. The ctx->error bit is checked in ngx_http_perl_call_handler() to cancel further processing, and is also checked in various output functions - to make sure these won't be called if croak() was handled by an eval{} in perl code. In particular, this ensures that output chain won't be called after errors, as filters might not expect this to happen. This fixes some segmentation faults under low memory conditions. Also this stops request processing after filter finalization or request body reading errors. For cases where an HTTP error status can be additionally returned (for example, 416 (Requested Range Not Satisfiable) from the range filter), the ctx->status field is also added.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 12 Jul 2019 13:56:21 +0300
parents 466bd63b63d1
children
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/*
 * Copyright (C) Nginx, Inc.
 * Copyright (C) Valentin V. Bartenev
 */


#ifndef _NGX_THREAD_POOL_H_INCLUDED_
#define _NGX_THREAD_POOL_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_event.h>


struct ngx_thread_task_s {
    ngx_thread_task_t   *next;
    ngx_uint_t           id;
    void                *ctx;
    void               (*handler)(void *data, ngx_log_t *log);
    ngx_event_t          event;
};


typedef struct ngx_thread_pool_s  ngx_thread_pool_t;


ngx_thread_pool_t *ngx_thread_pool_add(ngx_conf_t *cf, ngx_str_t *name);
ngx_thread_pool_t *ngx_thread_pool_get(ngx_cycle_t *cycle, ngx_str_t *name);

ngx_thread_task_t *ngx_thread_task_alloc(ngx_pool_t *pool, size_t size);
ngx_int_t ngx_thread_task_post(ngx_thread_pool_t *tp, ngx_thread_task_t *task);


#endif /* _NGX_THREAD_POOL_H_INCLUDED_ */