diff options
Diffstat (limited to 'src/os/unix/ngx_freebsd_sendfile_chain.c')
| -rw-r--r-- | src/os/unix/ngx_freebsd_sendfile_chain.c | 77 |
1 files changed, 61 insertions, 16 deletions
diff --git a/src/os/unix/ngx_freebsd_sendfile_chain.c b/src/os/unix/ngx_freebsd_sendfile_chain.c index 7199c8654..25790b6b6 100644 --- a/src/os/unix/ngx_freebsd_sendfile_chain.c +++ b/src/os/unix/ngx_freebsd_sendfile_chain.c @@ -32,19 +32,23 @@ ngx_chain_t * ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) { - int rc, flags; - off_t send, prev_send, sent; - size_t file_size; - ssize_t n; - ngx_uint_t eintr, eagain; - ngx_err_t err; - ngx_buf_t *file; - ngx_event_t *wev; - ngx_chain_t *cl; - ngx_iovec_t header, trailer; - struct sf_hdtr hdtr; - struct iovec headers[NGX_IOVS_PREALLOCATE]; - struct iovec trailers[NGX_IOVS_PREALLOCATE]; + int rc, flags; + off_t send, prev_send, sent; + size_t file_size; + ssize_t n; + ngx_uint_t eintr, eagain; + ngx_err_t err; + ngx_buf_t *file; + ngx_event_t *wev; + ngx_chain_t *cl; + ngx_iovec_t header, trailer; + struct sf_hdtr hdtr; + struct iovec headers[NGX_IOVS_PREALLOCATE]; + struct iovec trailers[NGX_IOVS_PREALLOCATE]; +#if (NGX_HAVE_AIO_SENDFILE) + ngx_uint_t ebusy; + ngx_event_aio_t *aio; +#endif wev = c->write; @@ -73,6 +77,11 @@ ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) eagain = 0; flags = 0; +#if (NGX_HAVE_AIO_SENDFILE && NGX_SUPPRESS_WARN) + aio = NULL; + file = NULL; +#endif + header.iovs = headers; header.nalloc = NGX_IOVS_PREALLOCATE; @@ -81,6 +90,9 @@ ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) for ( ;; ) { eintr = 0; +#if (NGX_HAVE_AIO_SENDFILE) + ebusy = 0; +#endif prev_send = send; /* create the header iovec and coalesce the neighbouring bufs */ @@ -160,7 +172,8 @@ ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) sent = 0; #if (NGX_HAVE_AIO_SENDFILE) - flags = c->aio_sendfile ? SF_NODISKIO : 0; + aio = file->file->aio; + flags = (aio && aio->preload_handler) ? SF_NODISKIO : 0; #endif rc = sendfile(file->file->fd, c->fd, file->file_pos, @@ -180,7 +193,7 @@ ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) #if (NGX_HAVE_AIO_SENDFILE) case NGX_EBUSY: - c->busy_sendfile = file; + ebusy = 1; break; #endif @@ -232,9 +245,41 @@ ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) in = ngx_chain_update_sent(in, sent); #if (NGX_HAVE_AIO_SENDFILE) - if (c->busy_sendfile) { + + if (ebusy) { + if (sent == 0) { + c->busy_count++; + + if (c->busy_count > 2) { + ngx_log_error(NGX_LOG_ALERT, c->log, 0, + "sendfile(%V) returned busy again", + &file->file->name); + + c->busy_count = 0; + aio->preload_handler = NULL; + + send = prev_send; + continue; + } + + } else { + c->busy_count = 0; + } + + rc = aio->preload_handler(file); + + if (rc > 0) { + send = prev_send + sent; + continue; + } + return in; } + + if (flags == SF_NODISKIO) { + c->busy_count = 0; + } + #endif if (eagain) { |