Mercurial > hg > nginx
diff src/os/unix/ngx_file.c @ 5:62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 23 Aug 2002 16:14:30 +0000 |
parents | |
children | 669801705ab1 |
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new file mode 100644 --- /dev/null +++ b/src/os/unix/ngx_file.c @@ -0,0 +1,61 @@ + + +ssize_t ngx_read_file(ngx_file_t file, char *buf, size_t size) +{ + read(); +} + +#if 0 + +ssize_t ngx_read_file(ngx_file_t *file, char *buf, size_t size, off_t offset) +{ + if (!file->read->ready) { + + ngx_memzero(&file->iocb, sizeof(iocb)); + file->iocb.aio_fildes = file->fd; + file->iocb.aio_buf = buf; + file->iocb.aio_nbytes = size; + file->iocb.aio_offset = offset; +#if (USE_AIO_KQUEUE) + file->iocb.aio_sigevent.sigev_notify = SIGEV_KEVENT; + file->iocb.aio_sigevent.sigev_notify_kqueue = tid->kq; + file->iocb.aio_sigevent.sigev_value = (union sigval) file; +#endif +#if (USE_AIO_SIGNAL) + file->iocb.aio_sigevent.sigev_notify = SIGEV_SIGNAL; + file->iocb.aio_sigevent.sigev_signo = NGX_SIGAIO; +#ifndef __FreeBSD__ + file->iocb.aio_sigevent.sigev_value.sival_ptr = file; +#endif +#endif + + if (aio_read(&file->iocb) == -1) { + ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, + "aio_read() failed"); + return NGX_ERROR; + + n = aio_error(&file->iocb); + if (n == EINPROGRESS) + return NGX_AGAIN; + + if (n == -1) { + ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, + "aio_read() failed"); + return NGX_ERROR; + } + } + + ngx_assert(file->iocb.aio_buf == buf), return NGX_ERROR, + "ngx_aio_read_file: another buffer is passed"); + + n = aio_return(&file->iocb); + if (n == -1) { + ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, + "aio_read() failed"); + return NGX_ERROR; + } + + return n; +} + +#endif