ttmedia_Deposit(library call) ttmedia_Deposit(library call)
NAMEttmedia_Deposit — send a Deposit request to checkpoint a document
SYNOPSIS
#include <Tt/tttk.h>
Tt_status ttmedia_Deposit(
Tt_message load_contract,
const char *buffer_id,
const char *media_type,
const unsigned char *new_contents,
int new_len,
const char *pathname,
XtAppContext app2run,
int ms_timeout);
DESCRIPTION
The ttmedia_Deposit function is used to perform a checkpoint save on a
document that was the subject of a Media Exchange load_contract request
such as Edit, Compose, or Open. To carry out a checkpoint save, the
editor must send the new document contents back to the sender of
load_contract.
The ttmedia_Deposit function creates and sends a Deposit request and
returns the success or failure of that request. The load_contract
argument is the request that caused this editor to load the document.
The buffer_id argument is the identifier of the buffer this editor cre‐
ated if the document was loaded via an Open request. If buffer_id is
NULL, the the ToolTalk service gives the Deposit request a Tt_address
of TT_HANDLER and sends it directly to the tt_message_sender of
load_contract; otherwise, the the ToolTalk service will address it as a
TT_PROCEDURE and insert buffer_id into the request to match the pattern
registered by the sender of the load_contract.
The ttmedia_Deposit function uses the media_type argument as the vtype
of the contents argument of the sent request, and new_contents and
new_len as its value. The latter two must be zero if pathname is used
to name a temporary file into which the editor will place the check‐
pointed document. The editor is free to remove the temporary file
after the reply to the Deposit request is received; that is, after
ttmedia_Deposit has returned.
After the request is sent, ttmedia_Deposit passes app2run and ms_time‐
out to tttk_block_while(3) to wait for the reply.
RETURN VALUE
Upon successful completion, the ttmedia_Deposit function returns the
status of the operation as one of the following Tt_status values:
TT_OK The operation completed successfully.
TT_DESKTOP_ETIMEDOUT
No reply was received within ms_timeout milliseconds.
TT_ERR_NOMEM
There is insufficient memory available to perform the func‐
tion.
TT_ERR_NOMP
The ttsession(1) process is not running and the ToolTalk ser‐
vice cannot restart it.
TT_ERR_OVERFLOW
The ToolTalk service has more active messages than it can
handle. (The maximum number of active messages is implemen‐
tation specific, but is at least 2000.)
TT_ERR_POINTER
The pathname argument was NULL or was a ToolTalk error
pointer.
TT_ERR_PROCID
The specified process identifier is out of date or invalid.
SEE ALSO
Tt/tttk.h - Tttttk(5), ttmedia_load(3), ttmedia_load_reply(3),
ttmedia_ptype_declare(3), ttdt_Save(3), tttk_block_while(3).
ttmedia_Deposit(library call)
