+++ /dev/null
-/*
- Unix SMB/CIFS implementation.
-
- POSIX NTVFS backend - Linux AIO calls
-
- Copyright (C) Andrew Tridgell 2006
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "includes.h"
-#include <tevent.h>
-#include "vfs_posix.h"
-#include "system/aio.h"
-
-struct pvfs_aio_read_state {
- struct ntvfs_request *req;
- union smb_read *rd;
- struct pvfs_file *f;
- struct tevent_aio *ae;
-};
-
-struct pvfs_aio_write_state {
- struct ntvfs_request *req;
- union smb_write *wr;
- struct pvfs_file *f;
- struct tevent_aio *ae;
-};
-
-/*
- called when an aio read has finished
-*/
-static void pvfs_aio_read_handler(struct tevent_context *ev, struct tevent_aio *ae,
- int ret, void *private_data)
-{
- struct pvfs_aio_read_state *state = talloc_get_type(private_data,
- struct pvfs_aio_read_state);
- struct pvfs_file *f = state->f;
- union smb_read *rd = state->rd;
-
- if (ret < 0) {
- /* errno is -ret on error */
- state->req->async_states->status = pvfs_map_errno(f->pvfs, -ret);
- state->req->async_states->send_fn(state->req);
- return;
- }
-
- f->handle->position = f->handle->seek_offset = rd->readx.in.offset + ret;
-
- rd->readx.out.nread = ret;
- rd->readx.out.remaining = 0xFFFF;
- rd->readx.out.compaction_mode = 0;
-
- talloc_steal(ev, state->ae);
-
- state->req->async_states->status = NT_STATUS_OK;
- state->req->async_states->send_fn(state->req);
-}
-
-
-/*
- read from a file
-*/
-NTSTATUS pvfs_aio_pread(struct ntvfs_request *req, union smb_read *rd,
- struct pvfs_file *f, uint32_t maxcnt)
-{
- struct iocb iocb;
- struct pvfs_aio_read_state *state;
-
- state = talloc(req, struct pvfs_aio_read_state);
- NT_STATUS_HAVE_NO_MEMORY(state);
-
- io_prep_pread(&iocb, f->handle->fd, rd->readx.out.data,
- maxcnt, rd->readx.in.offset);
- state->ae = tevent_add_aio(req->ctx->event_ctx, req->ctx->event_ctx, &iocb,
- pvfs_aio_read_handler, state);
- if (state->ae == NULL) {
- DEBUG(0,("Failed tevent_add_aio\n"));
- talloc_free(state);
- return NT_STATUS_NOT_IMPLEMENTED;
- }
-
- state->req = req;
- state->rd = rd;
- state->f = f;
-
- req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC;
-
- return NT_STATUS_OK;
-}
-
-
-
-
-/*
- called when an aio write has finished
-*/
-static void pvfs_aio_write_handler(struct tevent_context *ev, struct tevent_aio *ae,
- int ret, void *private_data)
-{
- struct pvfs_aio_write_state *state = talloc_get_type(private_data,
- struct pvfs_aio_write_state);
- struct pvfs_file *f = state->f;
- union smb_write *wr = state->wr;
-
- if (ret < 0) {
- /* errno is -ret on error */
- state->req->async_states->status = pvfs_map_errno(f->pvfs, -ret);
- state->req->async_states->send_fn(state->req);
- return;
- }
-
- f->handle->seek_offset = wr->writex.in.offset + ret;
-
- wr->writex.out.nwritten = ret;
- wr->writex.out.remaining = 0;
-
- talloc_steal(ev, state->ae);
-
- state->req->async_states->status = NT_STATUS_OK;
- state->req->async_states->send_fn(state->req);
-}
-
-
-/*
- write to a file
-*/
-NTSTATUS pvfs_aio_pwrite(struct ntvfs_request *req, union smb_write *wr,
- struct pvfs_file *f)
-{
- struct iocb iocb;
- struct pvfs_aio_write_state *state;
-
- state = talloc(req, struct pvfs_aio_write_state);
- NT_STATUS_HAVE_NO_MEMORY(state);
-
- io_prep_pwrite(&iocb, f->handle->fd, discard_const(wr->writex.in.data),
- wr->writex.in.count, wr->writex.in.offset);
- state->ae = tevent_add_aio(req->ctx->event_ctx, req->ctx->event_ctx, &iocb,
- pvfs_aio_write_handler, state);
- if (state->ae == NULL) {
- DEBUG(0,("Failed tevent_add_aio\n"));
- talloc_free(state);
- return NT_STATUS_NOT_IMPLEMENTED;
- }
-
- state->req = req;
- state->wr = wr;
- state->f = f;
-
- req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC;
-
- return NT_STATUS_OK;
-}
-
#define PVFS_FLAG_STRICT_LOCKING (1<<6)
#define PVFS_FLAG_XATTR_ENABLE (1<<7)
#define PVFS_FLAG_FAKE_OPLOCKS (1<<8)
-#define PVFS_FLAG_LINUX_AIO (1<<9)
#define PVFS_FLAG_PERM_OVERRIDE (1<<10)
/* forward declare some anonymous structures */
#define PVFS_ALLOCATION_ROUNDING "posix:allocationrounding"
#define PVFS_SEARCH_INACTIVITY "posix:searchinactivity"
#define PVFS_ACL "posix:acl"
-#define PVFS_AIO "posix:aio"
#define PVFS_PERM_OVERRIDE "posix:permission override"
#define PVFS_XATTR_DEFAULT true
#include "ntvfs/posix/vfs_posix_proto.h"
#include "ntvfs/posix/vfs_acl_proto.h"
-NTSTATUS pvfs_aio_pread(struct ntvfs_request *req, union smb_read *rd,
- struct pvfs_file *f, uint32_t maxcnt);
-NTSTATUS pvfs_aio_pwrite(struct ntvfs_request *req, union smb_write *wr,
- struct pvfs_file *f);
-
#endif /* _VFS_POSIX_H_ */
projects / thirdparty / samba.git / commitdiff
