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author | Volker Lendecke <vl@samba.org> | 2012-06-26 14:30:59 +0200 |
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committer | Jeremy Allison <jra@samba.org> | 2012-07-18 15:11:56 -0700 |
commit | e24aed15fa3374c6cb51488b029788b3a649d242 (patch) | |
tree | afe4111085412da33e2ca31d023a3a23cca75b9a /source3/smbd | |
parent | c6e456d9c08eb0d05904802e0f23f15676a13e0d (diff) | |
download | samba-e24aed15fa3374c6cb51488b029788b3a649d242.tar.gz samba-e24aed15fa3374c6cb51488b029788b3a649d242.tar.bz2 samba-e24aed15fa3374c6cb51488b029788b3a649d242.zip |
s3-vfs: async pread
Signed-off-by: Jeremy Allison <jra@samba.org>
Diffstat (limited to 'source3/smbd')
-rw-r--r-- | source3/smbd/vfs.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/source3/smbd/vfs.c b/source3/smbd/vfs.c index 9b666e0bf6..0414332073 100644 --- a/source3/smbd/vfs.c +++ b/source3/smbd/vfs.c @@ -1541,6 +1541,70 @@ ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle, return handle->fns->pread_fn(handle, fsp, data, n, offset); } +struct smb_vfs_call_pread_state { + ssize_t (*recv_fn)(struct tevent_req *req, int *err); + ssize_t retval; +}; + +static void smb_vfs_call_pread_done(struct tevent_req *subreq); + +struct tevent_req *smb_vfs_call_pread_send(struct vfs_handle_struct *handle, + TALLOC_CTX *mem_ctx, + struct tevent_context *ev, + struct files_struct *fsp, + void *data, + size_t n, off_t offset) +{ + struct tevent_req *req, *subreq; + struct smb_vfs_call_pread_state *state; + + req = tevent_req_create(mem_ctx, &state, + struct smb_vfs_call_pread_state); + if (req == NULL) { + return NULL; + } + VFS_FIND(pread_send); + state->recv_fn = handle->fns->pread_recv_fn; + + subreq = handle->fns->pread_send_fn(handle, state, ev, fsp, data, n, + offset); + if (tevent_req_nomem(subreq, req)) { + return tevent_req_post(req, ev); + } + tevent_req_set_callback(subreq, smb_vfs_call_pread_done, req); + return req; +} + +static void smb_vfs_call_pread_done(struct tevent_req *subreq) +{ + struct tevent_req *req = tevent_req_callback_data( + subreq, struct tevent_req); + struct smb_vfs_call_pread_state *state = tevent_req_data( + req, struct smb_vfs_call_pread_state); + int err; + + state->retval = state->recv_fn(subreq, &err); + TALLOC_FREE(subreq); + if (state->retval == -1) { + tevent_req_error(req, err); + return; + } + tevent_req_done(req); +} + +ssize_t SMB_VFS_PREAD_RECV(struct tevent_req *req, int *perrno) +{ + struct smb_vfs_call_pread_state *state = tevent_req_data( + req, struct smb_vfs_call_pread_state); + int err; + + if (tevent_req_is_unix_error(req, &err)) { + *perrno = err; + return -1; + } + return state->retval; +} + ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n) |