diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/core/ngx_rwlock.c | 9 | ||||
| -rw-r--r-- | src/core/ngx_rwlock.h | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/src/core/ngx_rwlock.c b/src/core/ngx_rwlock.c index 0aed29af5..ed2b0f810 100644 --- a/src/core/ngx_rwlock.c +++ b/src/core/ngx_rwlock.c @@ -109,6 +109,15 @@ ngx_rwlock_unlock(ngx_atomic_t *lock) } +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) diff --git a/src/core/ngx_rwlock.h b/src/core/ngx_rwlock.h index 8b16eca20..41b42aa82 100644 --- a/src/core/ngx_rwlock.h +++ b/src/core/ngx_rwlock.h @@ -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_ */ |