diff options
Diffstat (limited to 'source3')
| -rw-r--r-- | source3/smbd/aio.c | 66 |
1 files changed, 61 insertions, 5 deletions
diff --git a/source3/smbd/aio.c b/source3/smbd/aio.c index 64d7928c92..a8d4989964 100644 --- a/source3/smbd/aio.c +++ b/source3/smbd/aio.c @@ -587,6 +587,8 @@ bool cancel_smb2_aio(struct smb_request *smbreq) return true; } +static void aio_pread_smb2_done(struct tevent_req *req); + /**************************************************************************** Set up an aio request from a SMB2 read call. *****************************************************************************/ @@ -602,7 +604,7 @@ NTSTATUS schedule_smb2_aio_read(connection_struct *conn, struct aio_extra *aio_ex; SMB_STRUCT_AIOCB *a; size_t min_aio_read_size = lp_aio_read_size(SNUM(conn)); - int ret; + struct tevent_req *req; if (fsp->base_fsp != NULL) { /* No AIO on streams yet */ @@ -665,14 +667,16 @@ NTSTATUS schedule_smb2_aio_read(connection_struct *conn, a->aio_sigevent.sigev_signo = RT_SIGNAL_AIO; a->aio_sigevent.sigev_value.sival_ptr = aio_ex; - ret = SMB_VFS_AIO_READ(fsp, a); - if (ret == -1) { - DEBUG(0,("smb2: aio_read failed. " - "Error %s\n", strerror(errno) )); + req = SMB_VFS_PREAD_SEND(aio_ex, fsp->conn->sconn->ev_ctx, fsp, + preadbuf->data, smb_maxcnt, startpos); + if (req == NULL) { + DEBUG(0, ("smb2: SMB_VFS_PREAD_SEND failed. " + "Error %s\n", strerror(errno))); SMB_VFS_STRICT_UNLOCK(conn, fsp, &aio_ex->lock); TALLOC_FREE(aio_ex); return NT_STATUS_RETRY; } + tevent_req_set_callback(req, aio_pread_smb2_done, aio_ex); /* We don't need talloc_move here as both aio_ex and * smbreq are children of smbreq->smb2req. */ @@ -687,6 +691,58 @@ NTSTATUS schedule_smb2_aio_read(connection_struct *conn, return NT_STATUS_OK; } +static void aio_pread_smb2_done(struct tevent_req *req) +{ + struct aio_extra *aio_ex = tevent_req_callback_data( + req, struct aio_extra); + struct tevent_req *subreq = aio_ex->smbreq->smb2req->subreq; + files_struct *fsp = aio_ex->fsp; + NTSTATUS status; + ssize_t nread; + int err = 0; + + nread = SMB_VFS_PREAD_RECV(req, &err); + TALLOC_FREE(req); + + DEBUG(10, ("pread_recv returned %d, err = %s\n", (int)nread, + (nread == -1) ? strerror(err) : "no error")); + + if (fsp == NULL) { + DEBUG( 3, ("aio_pread_smb2_done: file closed whilst " + "aio outstanding (mid[%llu]).\n", + (unsigned long long)aio_ex->smbreq->mid)); + TALLOC_FREE(aio_ex); + return; + } + + /* Unlock now we're done. */ + SMB_VFS_STRICT_UNLOCK(fsp->conn, fsp, &aio_ex->lock); + + /* Common error or success code processing for async or sync + read returns. */ + + status = smb2_read_complete(subreq, nread, err); + + if (nread > 0) { + fsp->fh->pos = aio_ex->acb.aio_offset + nread; + fsp->fh->position_information = fsp->fh->pos; + } + + DEBUG(10, ("smb2: scheduled aio_read completed " + "for file %s, offset %.0f, len = %u " + "(errcode = %d, NTSTATUS = %s)\n", + fsp_str_dbg(aio_ex->fsp), + (double)aio_ex->acb.aio_offset, + (unsigned int)nread, + err, nt_errstr(status))); + + if (!NT_STATUS_IS_OK(status)) { + tevent_req_nterror(subreq, status); + return; + } + tevent_req_done(subreq); +} + /**************************************************************************** Set up an aio request from a SMB2write call. *****************************************************************************/ |