Mercurial > hg > nginx
view src/os/unix/ngx_channel.h @ 7948:a2613fc1bce5
Fixed sendfile() limit handling on Linux.
On Linux starting with 2.6.16, sendfile() silently limits all operations
to MAX_RW_COUNT, defined as (INT_MAX & PAGE_MASK). This incorrectly
triggered the interrupt check, and resulted in 0-sized writev() on the
next loop iteration.
Fix is to make sure the limit is always checked, so we will return from
the loop if the limit is already reached even if number of bytes sent is
not exactly equal to the number of bytes we've tried to send.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Fri, 29 Oct 2021 20:21:51 +0300 |
parents | 2cd019520210 |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_CHANNEL_H_INCLUDED_ #define _NGX_CHANNEL_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> typedef struct { ngx_uint_t command; ngx_pid_t pid; ngx_int_t slot; ngx_fd_t fd; } ngx_channel_t; ngx_int_t ngx_write_channel(ngx_socket_t s, ngx_channel_t *ch, size_t size, ngx_log_t *log); ngx_int_t ngx_read_channel(ngx_socket_t s, ngx_channel_t *ch, size_t size, ngx_log_t *log); ngx_int_t ngx_add_channel_event(ngx_cycle_t *cycle, ngx_fd_t fd, ngx_int_t event, ngx_event_handler_pt handler); void ngx_close_channel(ngx_fd_t *fd, ngx_log_t *log); #endif /* _NGX_CHANNEL_H_INCLUDED_ */