ngx_aiocb_t        91 src/os/unix/ngx_freebsd_config.h typedef struct aiocb  ngx_aiocb_t;
ngx_aiocb_t        96 src/os/unix/ngx_linux_config.h typedef struct iocb  ngx_aiocb_t;
ngx_aiocb_t       134 src/os/unix/ngx_posix_config.h typedef struct aiocb  ngx_aiocb_t;