Cogent C API and Utilities : Version 6.4
	Inter-Process Communication Functions

`IP_TaskSendSync`

IP_TaskSendSync — transmits a message, and waits for a reply.

Syntax

#include <cogent.h>
int IP_TaskSendSync( IP_Task*   myself, 
  IP_Task*   receiver, 
  IP_Msg*   smsg, 
  IP_Msg*   rmsg);

Arguments

myself: A task structure referring to the current task.
receiver: The task receiving the message.
smsg: The message structure containing the data to send.
rmsg: The message structure into which received data will be written.

Returns

0 on success, or -1 on failure and errno is set.

Description

This function transmits a message (smsg) from myself to the receiver, and waits for the receiver to reply. There is no limit to how long the receiver may delay prior to replying. The reply data will be written into the rmsg buffer. If the rmsg data area is not large enough to accommodate the entire reply, then the result is OS-dependent. This will change in future versions of this API.

`int IP_TaskSendSync(`	IP_Task*	`myself`,
	IP_Task*	`receiver`,
	IP_Msg*	`smsg`,
	IP_Msg*	`rmsg)`;


IP_TaskSendRaw		IP_TaskSetDomain

IP_TaskSendSync

Syntax

Arguments

Returns

Description

See Also

`IP_TaskSendSync`