tt_file_objects_query(3) [hpux man page]
tt_file_objects_query(library call) tt_file_objects_query(library call) NAME
tt_file_objects_query -- find all objects in the named file SYNOPSIS
#include <Tt/tt_c.h> Tt_status tt_file_objects_query( const char *filepath, Tt_filter_function filter, void *context, void *accumulator); DESCRIPTION
The tt_file_objects_query function instructs the ToolTalk service to find all objects in the named file and pass the objids to the filter function. The context pointer and accumulator pointer initially specified are also passed to the filter function. As the ToolTalk service finds each object, it calls the filter function, passing the objid of the object and the two application-supplied pointers. The filter function performs its computation and returns a Tt_filter_action value that tells the query function whether to con- tinue or to stop. Tt_filter_action values are: TT_FILTER_CONTINUE The query function should continue. TT_FILTER_STOP The query function should stop. The filepath argument is the name of the file to be searched for objects. The filter argument is the filter function to which the objids are to be passed. The context argument is a pointer to any information the filter needs to execute. The ToolTalk service does not inter- pret this argument, but passes it directly to the filter function. The accumulator argument is a pointer to where the filter is to store the results of the query and filter operations. The ToolTalk service does not interpret this argument, but passes it directly to the fil- ter function. RETURN VALUE
Upon successful completion, the tt_file_objects_query function returns the status of the operation as one of the following Tt_status val- ues: TT_OK The operation completed successfully. 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_NOMP The ttsession(1) process is not running and the ToolTalk service cannot restart it. TT_ERR_PATH The specified pathname included an unsearchable directory. TT_WRN_STOPPED The query operation being performed was halted by Tt_filter_function. SEE ALSO
Tt/tt_c.h - Tttt_c(5). tt_file_objects_query(library call)
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ttdt_Revert(library call) ttdt_Revert(library call) NAME
ttdt_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 argument 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 contexts 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_message_status of the failure reply to TT_OK, instead of a specific error sta- tus. 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 function. TT_ERR_NOMP The ttsession(1) process is not running and the ToolTalk service cannot restart it. TT_ERR_OVERFLOW The ToolTalk service has more active messages than it can handle. (The maximum number of active messages is implementation spe- cific, 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)