Mercurial > hg > nginx
view src/event/ngx_event_wsarecv.c @ 376:d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 05 Jul 2004 06:55:54 +0000 |
parents | 8dee38ea9117 |
children |
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#include <ngx_config.h> #include <ngx_core.h> #include <ngx_errno.h> #include <ngx_log.h> #include <ngx_connection.h> #include <ngx_event.h> ssize_t ngx_event_wsarecv(ngx_connection_t *c, char *buf, size_t size) { int rc; u_int flags; size_t bytes; ngx_err_t err; WSABUF wsabuf[1]; ngx_event_t *ev; LPWSAOVERLAPPED_COMPLETION_ROUTINE handler; ev = c->read; /* DEBUG */ bytes = 0; if (ev->timedout) { ngx_set_socket_errno(NGX_ETIMEDOUT); ngx_log_error(NGX_LOG_ERR, ev->log, 0, "WSARecv() timed out"); return NGX_ERROR; } if (ev->ready) { ev->ready = 0; #if (HAVE_IOCP) /* iocp */ if (ngx_event_flags & NGX_HAVE_IOCP_EVENT) { if (ev->ovlp.error) { ngx_log_error(NGX_LOG_ERR, c->log, ev->ovlp.error, "WSARecv() failed"); return NGX_ERROR; } return ev->available; } #endif if (WSAGetOverlappedResult(c->fd, (LPWSAOVERLAPPED) &ev->ovlp, &bytes, 0, NULL) == 0) { err = ngx_socket_errno; ngx_log_error(NGX_LOG_CRIT, ev->log, err, "WSARecv() or WSAGetOverlappedResult() failed"); return NGX_ERROR; } return bytes; } ngx_memzero(&ev->ovlp, sizeof(WSAOVERLAPPED)); wsabuf[0].buf = buf; wsabuf[0].len = size; flags = 0; #if 0 handler = ev->handler; #else handler = NULL; #endif rc = WSARecv(c->fd, wsabuf, 1, &bytes, &flags, (LPWSAOVERLAPPED) &ev->ovlp, handler); ngx_log_debug(ev->log, "WSARecv: %d:%d" _ rc _ bytes); if (rc == -1) { err = ngx_socket_errno; if (err == WSA_IO_PENDING) { return NGX_AGAIN; } else { ngx_log_error(NGX_LOG_CRIT, ev->log, err, "WSARecv() failed"); return NGX_ERROR; } } #if (HAVE_IOCP) /* iocp */ if (ngx_event_flags & NGX_HAVE_IOCP_EVENT) { return NGX_AGAIN; } #endif return bytes; }