Mercurial > hg > nginx
diff src/os/win32/ngx_sendfile.c @ 0:4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
The first code that uses "ngx_" prefix, the previous one used "gx_" prefix.
At that point the code is not yet usable. The first draft ideas are dated
back to 23.10.2001.
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Tue, 06 Aug 2002 16:39:45 +0000 |
parents | |
children | 34a521b1a148 |
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new file mode 100644 --- /dev/null +++ b/src/os/win32/ngx_sendfile.c @@ -0,0 +1,89 @@ + +#include <ngx_config.h> +#include <ngx_types.h> +#include <ngx_errno.h> +#include <ngx_log.h> +#include <ngx_sendv.h> +#include <ngx_sendfile.h> + +/* + TODO: + various flags + TransmitPackets +*/ + +/* + returns + 0 done + -1 error +*/ + +#if (HAVE_WIN32_TRANSMITFILE) + +int ngx_sendfile(ngx_socket_t s, + ngx_iovec_t *headers, int hdr_cnt, + ngx_file_t fd, off_t offset, size_t nbytes, + ngx_iovec_t *trailers, int trl_cnt, + off_t *sent, + ngx_log_t *log) +{ + int tfrc, rc; + ngx_err_t tf_err, err; + OVERLAPPED olp; + TRANSMIT_FILE_BUFFERS tfb, *ptfb; + + tf_err = 0; + err = 0; + + olp.Internal = 0; + olp.InternalHigh = 0; + olp.Offset = (DWORD) offset; + olp.OffsetHigh = (DWORD) (offset >> 32); + olp.hEvent = NULL; + + if (headers || trailers) { + tfb.Head = headers->ngx_iov_base; + tfb.HeadLength = headers->ngx_iov_len; + tfb.Tail = trailers->ngx_iov_base; + tfb.TailLength = trailers->ngx_iov_len; + ptfb = &tfb; + + } else { + ptfb = NULL; + } + + tfrc = TransmitFile(s, fd, nbytes, 0, &olp, ptfb, 0); + + if (tfrc == 0) + tf_err = ngx_socket_errno; + + /* set sent */ + rc = WSAGetOverlappedResult(s, &olp, (unsigned long *) sent, 0, NULL); + + ngx_log_debug(log, "ngx_sendfile: %d, @%qd %d:%qd" _ + tfrc _ offset _ nbytes _ *sent); + + if (rc == 0) { + err = ngx_socket_errno; + ngx_log_error(NGX_LOG_ERR, log, err, + "ngx_sendfile: WSAGetOverlappedResult failed"); + } + + if (tfrc == 0) { + if (tf_err != NGX_EAGAIN) { + ngx_log_error(NGX_LOG_ERR, log, tf_err, + "ngx_sendfile: TransmitFile failed"); + return -1; + } + + ngx_log_error(NGX_LOG_INFO, log, tf_err, + "ngx_sendfile: TransmitFile sent only %qd bytes", *sent); + } + + if (rc == 0) + return -1; + + return 0; +} + +#endif