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Index for Section 3 |
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Alphabetical listing for T |
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tt_message_receive(3)
CDE
NAME
tt_message_receive - receive a message
SYNOPSIS
#include <Tt/tt_c.h>
Tt_message tt_message_receive(void);
DESCRIPTION
The tt_message_receive function returns a handle for the next message
queued to be delivered to the process and also runs any message or pattern
callbacks applicable to the queued message.
If the return value of tt_message_status3 for this message is
TT_WRN_START_MESSAGE, the ToolTalk service started the process to deliver
the queued message; the process must reply to this message. If the return
value of tt_message_receive is zero, no message is available.
RETURN VALUE
Upon successful completion, the tt_message_receive function returns the
handle for the message object. The application can use tt_ptr_error3 to
extract one of the following Tt_status values from the returned handle: The
operation completed successfully.
The ttsession1 process is not running and the ToolTalk service cannot
restart it.
APPLICATION USAGE
A zero value can occur if a message or pattern callback processes the
message. It can also occur if the interval is too long between the time
the file descriptor became active and the tt_message_receive call was made.
In the latter case, the ToolTalk service will time out and offer the
message to another process.
The application should use tt_free3 to free any data stored in the address
returned by the ToolTalk API.
SEE ALSO
Tt/tt_c.h5, tt_ptr_error3, tt_free3.