Support for Pipes

Support for Pipes

IRIX supports two kinds of pipes with different semantics, as described in the pipe(2) reference page. The default type of pipe is compatible with UNIX SVR3, and does not conform to the description in Chapter 2 of STREAMS Modules and Drivers, UNIX SVR4.2 under the heading "Creating a STREAMS-based Pipe."

The SVR4 pipe semantics are enabled on a system-wide basis by using the systune command to set the tuning parameter svr3pipe to 0. First test the configuration as shown in Example 19-1.

Example 19-1 : Testing Pipe Configuration

# systune | grep svr3pipe
       svr3pipe = 1 (0x1)