Mercurial > hg > nginx
changeset 7038:d1816a2696de
Introduced ngx_rwlock_downgrade().
author | Ruslan Ermilov <ru@nginx.com> |
---|---|
date | Fri, 16 Jun 2017 18:15:58 +0300 |
parents | 12efcdcb8a4b |
children | a39bc74873fa |
files | src/core/ngx_rwlock.c src/core/ngx_rwlock.h |
diffstat | 2 files changed, 10 insertions(+), 0 deletions(-) [+] |
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--- a/src/core/ngx_rwlock.c Fri Jun 16 18:15:53 2017 +0300 +++ b/src/core/ngx_rwlock.c Fri Jun 16 18:15:58 2017 +0300 @@ -109,6 +109,15 @@ } +void +ngx_rwlock_downgrade(ngx_atomic_t *lock) +{ + if (*lock == NGX_RWLOCK_WLOCK) { + *lock = 1; + } +} + + #else #if (NGX_HTTP_UPSTREAM_ZONE || NGX_STREAM_UPSTREAM_ZONE)
--- a/src/core/ngx_rwlock.h Fri Jun 16 18:15:53 2017 +0300 +++ b/src/core/ngx_rwlock.h Fri Jun 16 18:15:58 2017 +0300 @@ -16,6 +16,7 @@ void ngx_rwlock_wlock(ngx_atomic_t *lock); void ngx_rwlock_rlock(ngx_atomic_t *lock); void ngx_rwlock_unlock(ngx_atomic_t *lock); +void ngx_rwlock_downgrade(ngx_atomic_t *lock); #endif /* _NGX_RWLOCK_H_INCLUDED_ */