Producer/Consumer Pipes

output

input

char inbuffer[1024];

char outbuffer[1024];

while (inbytes != 0) {

inbytes = read(stdin, inbuffer, 1024);

outbytes = process data from inbuffer to outbuffer;

write(stdout, outbuffer, outbytes);

}

This example illustrates one important use of the producer/consumer bounded buffer in Lab #3.

Pipes support a simple form of parallelism with built-in flow control.

e.g.: sort <grades | grep Dan | mail sprenkle