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Events: fixed EPOLLRDHUP with FIONREAD (ticket #2367). When reading exactly rev->available bytes, rev->available might become 0 after FIONREAD usage introduction in efd71d49bde0. On the next call of ngx_readv_chain() on systems with EPOLLRDHUP this resulted in return without any actions, that is, with rev->ready set, and this in turn resulted in no timers set in event pipe, leading to socket leaks. Fix is to reset rev->ready in ngx_readv_chain() when returning due to rev->available being 0 with EPOLLRDHUP, much like it is already done in ngx_unix_recv(). This ensures that if rev->available will become 0, on systems with EPOLLRDHUP support appropriate EPOLLRDHUP-specific handling will happen on the next ngx_readv_chain() call. While here, also synced ngx_readv_chain() to match ngx_unix_recv() and reset rev->ready when returning due to rev->available being 0 with kqueue. This is mostly cosmetic change, as rev->ready is anyway reset when rev->available is set to 0.
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 15 Jul 2022 15:19:32 +0300
parents d620f497c50f
children
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_TIME_H_INCLUDED_
#define _NGX_TIME_H_INCLUDED_


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


typedef ngx_rbtree_key_t      ngx_msec_t;
typedef ngx_rbtree_key_int_t  ngx_msec_int_t;

typedef struct tm             ngx_tm_t;

#define ngx_tm_sec            tm_sec
#define ngx_tm_min            tm_min
#define ngx_tm_hour           tm_hour
#define ngx_tm_mday           tm_mday
#define ngx_tm_mon            tm_mon
#define ngx_tm_year           tm_year
#define ngx_tm_wday           tm_wday
#define ngx_tm_isdst          tm_isdst

#define ngx_tm_sec_t          int
#define ngx_tm_min_t          int
#define ngx_tm_hour_t         int
#define ngx_tm_mday_t         int
#define ngx_tm_mon_t          int
#define ngx_tm_year_t         int
#define ngx_tm_wday_t         int


#if (NGX_HAVE_GMTOFF)
#define ngx_tm_gmtoff         tm_gmtoff
#define ngx_tm_zone           tm_zone
#endif


#if (NGX_SOLARIS)

#define ngx_timezone(isdst) (- (isdst ? altzone : timezone) / 60)

#else

#define ngx_timezone(isdst) (- (isdst ? timezone + 3600 : timezone) / 60)

#endif


void ngx_timezone_update(void);
void ngx_localtime(time_t s, ngx_tm_t *tm);
void ngx_libc_localtime(time_t s, struct tm *tm);
void ngx_libc_gmtime(time_t s, struct tm *tm);

#define ngx_gettimeofday(tp)  (void) gettimeofday(tp, NULL);
#define ngx_msleep(ms)        (void) usleep(ms * 1000)
#define ngx_sleep(s)          (void) sleep(s)


#endif /* _NGX_TIME_H_INCLUDED_ */