diff options
author | Konstantin Ananyev <konstantin.ananyev@intel.com> | 2017-10-31 12:40:17 +0000 |
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committer | Konstantin Ananyev <konstantin.ananyev@intel.com> | 2017-10-31 14:19:39 +0000 |
commit | e18a033b921d0d79fa8278f853548e6125b93e0c (patch) | |
tree | a6a55edf6ddceef824561818c9836914c326340d /app/nginx/src/os/win32/ngx_wsarecv.c | |
parent | 7e18fa1bf263822c46d7431a911b41d6377d5f69 (diff) |
Integrate TLDK with NGINX
Created a clone of nginx (from https://github.com/nginx/nginx)
to demonstrate and benchmark TLDK library integrated with real
world application.
A new nginx module is created and and BSD socket-like API is implemented
on top of native TLDK API.
Note, that right now only minimalistic subset of socket-like API is provided:
- accept
- close
- readv
- recv
- writev
so only limited nginx functionality is available for a moment.
Change-Id: Ie1efe9349a0538da4348a48fb8306cbf636b5a92
Signed-off-by: Mohammad Abdul Awal <mohammad.abdul.awal@intel.com>
Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
Signed-off-by: Remy Horton <remy.horton@intel.com>
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Diffstat (limited to 'app/nginx/src/os/win32/ngx_wsarecv.c')
-rw-r--r-- | app/nginx/src/os/win32/ngx_wsarecv.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/app/nginx/src/os/win32/ngx_wsarecv.c b/app/nginx/src/os/win32/ngx_wsarecv.c new file mode 100644 index 0000000..1925f0b --- /dev/null +++ b/app/nginx/src/os/win32/ngx_wsarecv.c @@ -0,0 +1,174 @@ + +/* + * Copyright (C) Igor Sysoev + * Copyright (C) Nginx, Inc. + */ + + +#include <ngx_config.h> +#include <ngx_core.h> +#include <ngx_event.h> + + +ssize_t +ngx_wsarecv(ngx_connection_t *c, u_char *buf, size_t size) +{ + int rc; + u_long bytes, flags; + WSABUF wsabuf[1]; + ngx_err_t err; + ngx_int_t n; + ngx_event_t *rev; + + wsabuf[0].buf = (char *) buf; + wsabuf[0].len = size; + flags = 0; + bytes = 0; + + rc = WSARecv(c->fd, wsabuf, 1, &bytes, &flags, NULL, NULL); + + ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, + "WSARecv: fd:%d rc:%d %ul of %z", c->fd, rc, bytes, size); + + rev = c->read; + + if (rc == -1) { + rev->ready = 0; + err = ngx_socket_errno; + + if (err == WSAEWOULDBLOCK) { + ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, + "WSARecv() not ready"); + return NGX_AGAIN; + } + + n = ngx_connection_error(c, err, "WSARecv() failed"); + + if (n == NGX_ERROR) { + rev->error = 1; + } + + return n; + } + + if (bytes < size) { + rev->ready = 0; + } + + if (bytes == 0) { + rev->eof = 1; + } + + return bytes; +} + + +ssize_t +ngx_overlapped_wsarecv(ngx_connection_t *c, u_char *buf, size_t size) +{ + int rc; + u_long bytes, flags; + WSABUF wsabuf[1]; + ngx_err_t err; + ngx_int_t n; + ngx_event_t *rev; + LPWSAOVERLAPPED ovlp; + + rev = c->read; + + if (!rev->ready) { + ngx_log_error(NGX_LOG_ALERT, c->log, 0, "second wsa post"); + return NGX_AGAIN; + } + + ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, + "rev->complete: %d", rev->complete); + + if (rev->complete) { + rev->complete = 0; + + if (ngx_event_flags & NGX_USE_IOCP_EVENT) { + if (rev->ovlp.error) { + ngx_connection_error(c, rev->ovlp.error, "WSARecv() failed"); + return NGX_ERROR; + } + + ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, + "WSARecv ovlp: fd:%d %ul of %z", + c->fd, rev->available, size); + + return rev->available; + } + + if (WSAGetOverlappedResult(c->fd, (LPWSAOVERLAPPED) &rev->ovlp, + &bytes, 0, NULL) + == 0) + { + ngx_connection_error(c, ngx_socket_errno, + "WSARecv() or WSAGetOverlappedResult() failed"); + return NGX_ERROR; + } + + ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, + "WSARecv: fd:%d %ul of %z", c->fd, bytes, size); + + return bytes; + } + + ovlp = (LPWSAOVERLAPPED) &rev->ovlp; + ngx_memzero(ovlp, sizeof(WSAOVERLAPPED)); + wsabuf[0].buf = (char *) buf; + wsabuf[0].len = size; + flags = 0; + bytes = 0; + + rc = WSARecv(c->fd, wsabuf, 1, &bytes, &flags, ovlp, NULL); + + rev->complete = 0; + + ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, + "WSARecv ovlp: fd:%d rc:%d %ul of %z", + c->fd, rc, bytes, size); + + if (rc == -1) { + err = ngx_socket_errno; + if (err == WSA_IO_PENDING) { + rev->active = 1; + ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, + "WSARecv() posted"); + return NGX_AGAIN; + } + + n = ngx_connection_error(c, err, "WSARecv() failed"); + + if (n == NGX_ERROR) { + rev->error = 1; + } + + return n; + } + + if (ngx_event_flags & NGX_USE_IOCP_EVENT) { + + /* + * if a socket was bound with I/O completion port + * then GetQueuedCompletionStatus() would anyway return its status + * despite that WSARecv() was already complete + */ + + rev->active = 1; + return NGX_AGAIN; + } + + if (bytes == 0) { + rev->eof = 1; + rev->ready = 0; + + } else { + rev->ready = 1; + } + + rev->active = 0; + + return bytes; +} |