ttdt_Revert(library call) ttdt_Revert(library call)
NAMEttdt_Revert — request a ToolTalk client to revert a file
SYNOPSIS
#include <Tt/tttk.h>
Tt_status ttdt_Revert(
Tt_message context,
const char *pathname,
Tt_scope the_scope,
XtAppContext app2run,
int ms_timeout);
DESCRIPTION
The ttdt_Revert function sends a Revert request in the the_scope argu‐
ment and waits for the reply. A Revert request asks the handling
ToolTalk client to discard any changes pending on pathname.
The context argument describes the environment to use. If context is
not zero, messages created by ttdt_Revert inherit from context all con‐
texts whose slotname begins with the characters ENV_.
The the_scope argument identifies the scope of the request. If
the_scope is TT_SCOPE_NONE, ttdt_Revert tries TT_BOTH, and falls back
to TT_FILE_IN_SESSION if, for example, the ToolTalk database server is
not installed on the file server that owns pathname.
The ttdt_Revert function passes app2run and ms_timeout to
tttk_block_while(3), blocking on the reply to the Save request it
sends.
RETURN VALUE
Upon successful completion, the ttdt_Revert function returns the status
of the operation as one of the following Tt_status values:
TT_OK The sent request received an affirmative reply within
ms_timeout milliseconds.
TT_DESKTOP_ETIMEDOUT
No reply was received within ms_timeout milliseconds.
TT_DESKTOP_EPROTO
The request was failed, but the handler set the tt_mes‐
sage_status of the failure reply to TT_OK, instead of a spe‐
cific error status.
TT_ERR_DBAVAIL
The ToolTalk service could not access the ToolTalk database
needed for this operation.
TT_ERR_DBEXIST
The ToolTalk service could not access the specified ToolTalk
database in the expected place.
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The specified process identifier is out of date or invalid.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), ttdt_Save(3), ttdt_file_join(3),
ttdt_file_event(3), tttk_block_while(3).
ttdt_Revert(library call)
