Skipping spaces in configuration files (ticket #1557). Previously, a chunk of spaces larger than NGX_CONF_BUFFER (4096 bytes) resulted in the "too long parameter" error during parsing such a configuration. This was because the code only set start and start_line on non-whitespace characters, and hence adjacent whitespace characters were preserved when reading additional data from the configuration file. Fix is to always move start and start_line if the last character was a space.

/*
 * Copyright (C) Ruslan Ermilov
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_RWLOCK_H_INCLUDED_
#define _NGX_RWLOCK_H_INCLUDED_


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


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_ */