diff options
Diffstat (limited to 'app/nginx/src/os/win32/ngx_wsasend_chain.c')
-rw-r--r-- | app/nginx/src/os/win32/ngx_wsasend_chain.c | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/app/nginx/src/os/win32/ngx_wsasend_chain.c b/app/nginx/src/os/win32/ngx_wsasend_chain.c deleted file mode 100644 index e2dde22..0000000 --- a/app/nginx/src/os/win32/ngx_wsasend_chain.c +++ /dev/null @@ -1,292 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> - - -#define NGX_WSABUFS 8 - - -ngx_chain_t * -ngx_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) -{ - int rc; - u_char *prev; - u_long size, sent, send, prev_send; - ngx_err_t err; - ngx_event_t *wev; - ngx_array_t vec; - ngx_chain_t *cl; - LPWSABUF wsabuf; - WSABUF wsabufs[NGX_WSABUFS]; - - wev = c->write; - - if (!wev->ready) { - return in; - } - - /* the maximum limit size is the maximum u_long value - the page size */ - - if (limit == 0 || limit > (off_t) (NGX_MAX_UINT32_VALUE - ngx_pagesize)) { - limit = NGX_MAX_UINT32_VALUE - ngx_pagesize; - } - - send = 0; - - /* - * WSABUFs must be 4-byte aligned otherwise - * WSASend() will return undocumented WSAEINVAL error. - */ - - vec.elts = wsabufs; - vec.size = sizeof(WSABUF); - vec.nalloc = NGX_WSABUFS; - vec.pool = c->pool; - - for ( ;; ) { - prev = NULL; - wsabuf = NULL; - prev_send = send; - - vec.nelts = 0; - - /* create the WSABUF and coalesce the neighbouring bufs */ - - for (cl = in; - cl && vec.nelts < ngx_max_wsabufs && send < limit; - cl = cl->next) - { - if (ngx_buf_special(cl->buf)) { - continue; - } - - size = cl->buf->last - cl->buf->pos; - - if (send + size > limit) { - size = (u_long) (limit - send); - } - - if (prev == cl->buf->pos) { - wsabuf->len += cl->buf->last - cl->buf->pos; - - } else { - wsabuf = ngx_array_push(&vec); - if (wsabuf == NULL) { - return NGX_CHAIN_ERROR; - } - - wsabuf->buf = (char *) cl->buf->pos; - wsabuf->len = cl->buf->last - cl->buf->pos; - } - - prev = cl->buf->last; - send += size; - } - - sent = 0; - - rc = WSASend(c->fd, vec.elts, vec.nelts, &sent, 0, NULL, NULL); - - if (rc == -1) { - err = ngx_errno; - - if (err == WSAEWOULDBLOCK) { - ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, - "WSASend() not ready"); - - } else { - wev->error = 1; - ngx_connection_error(c, err, "WSASend() failed"); - return NGX_CHAIN_ERROR; - } - } - - ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, - "WSASend: fd:%d, s:%ul", c->fd, sent); - - c->sent += sent; - - in = ngx_chain_update_sent(in, sent); - - if (send - prev_send != sent) { - wev->ready = 0; - return in; - } - - if (send >= limit || in == NULL) { - return in; - } - } -} - - -ngx_chain_t * -ngx_overlapped_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) -{ - int rc; - u_char *prev; - u_long size, send, sent; - ngx_err_t err; - ngx_event_t *wev; - ngx_array_t vec; - ngx_chain_t *cl; - LPWSAOVERLAPPED ovlp; - LPWSABUF wsabuf; - WSABUF wsabufs[NGX_WSABUFS]; - - wev = c->write; - - if (!wev->ready) { - return in; - } - - ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, - "wev->complete: %d", wev->complete); - - if (!wev->complete) { - - /* post the overlapped WSASend() */ - - /* the maximum limit size is the maximum u_long value - the page size */ - - if (limit == 0 || limit > (off_t) (NGX_MAX_UINT32_VALUE - ngx_pagesize)) - { - limit = NGX_MAX_UINT32_VALUE - ngx_pagesize; - } - - /* - * WSABUFs must be 4-byte aligned otherwise - * WSASend() will return undocumented WSAEINVAL error. - */ - - vec.elts = wsabufs; - vec.nelts = 0; - vec.size = sizeof(WSABUF); - vec.nalloc = NGX_WSABUFS; - vec.pool = c->pool; - - send = 0; - prev = NULL; - wsabuf = NULL; - - /* create the WSABUF and coalesce the neighbouring bufs */ - - for (cl = in; - cl && vec.nelts < ngx_max_wsabufs && send < limit; - cl = cl->next) - { - if (ngx_buf_special(cl->buf)) { - continue; - } - - size = cl->buf->last - cl->buf->pos; - - if (send + size > limit) { - size = (u_long) (limit - send); - } - - if (prev == cl->buf->pos) { - wsabuf->len += cl->buf->last - cl->buf->pos; - - } else { - wsabuf = ngx_array_push(&vec); - if (wsabuf == NULL) { - return NGX_CHAIN_ERROR; - } - - wsabuf->buf = (char *) cl->buf->pos; - wsabuf->len = cl->buf->last - cl->buf->pos; - } - - prev = cl->buf->last; - send += size; - } - - ovlp = (LPWSAOVERLAPPED) &c->write->ovlp; - ngx_memzero(ovlp, sizeof(WSAOVERLAPPED)); - - rc = WSASend(c->fd, vec.elts, vec.nelts, &sent, 0, ovlp, NULL); - - wev->complete = 0; - - if (rc == -1) { - err = ngx_errno; - - if (err == WSA_IO_PENDING) { - ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, - "WSASend() posted"); - wev->active = 1; - return in; - - } else { - wev->error = 1; - ngx_connection_error(c, err, "WSASend() failed"); - return NGX_CHAIN_ERROR; - } - - } else 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 WSASend() was already complete - */ - - wev->active = 1; - return in; - } - - ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, - "WSASend: fd:%d, s:%ul", c->fd, sent); - - } else { - - /* the overlapped WSASend() complete */ - - wev->complete = 0; - wev->active = 0; - - if (ngx_event_flags & NGX_USE_IOCP_EVENT) { - if (wev->ovlp.error) { - ngx_connection_error(c, wev->ovlp.error, "WSASend() failed"); - return NGX_CHAIN_ERROR; - } - - sent = wev->available; - - } else { - if (WSAGetOverlappedResult(c->fd, (LPWSAOVERLAPPED) &wev->ovlp, - &sent, 0, NULL) - == 0) - { - ngx_connection_error(c, ngx_socket_errno, - "WSASend() or WSAGetOverlappedResult() failed"); - - return NGX_CHAIN_ERROR; - } - } - } - - ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, - "WSASend ovlp: fd:%d, s:%ul", c->fd, sent); - - c->sent += sent; - - in = ngx_chain_update_sent(in, sent); - - if (in) { - wev->ready = 0; - - } else { - wev->ready = 1; - } - - return in; -} |