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Diffstat (limited to 'testsuites/sptests/spfifo04/spfifo04.doc')
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diff --git a/testsuites/sptests/spfifo04/spfifo04.doc b/testsuites/sptests/spfifo04/spfifo04.doc new file mode 100644 index 0000000000..7ebc103f50 --- /dev/null +++ b/testsuites/sptests/spfifo04/spfifo04.doc @@ -0,0 +1,51 @@ +# +# $Id$ +# +# COPYRIGHT (c) 1989-1999. +# On-Line Applications Research Corporation (OAR). +# +# The license and distribution terms for this file may be +# found in the file LICENSE in this distribution or at +# http://www.rtems.com/license/LICENSE. +# + +This file describes the directives and concepts tested by this test set. + +Configuration: + +Pipes enabled. +Maximum number of barriers is set to 2. + +Coverage concepts: + +With number of barriers set to 2, and provided there is sufficient +memory available, fifo_open -> pipe_new must be able to create a new +pipe_control_t successfully. + +This test + +- Creates a directory /tmp +- Creates a fifo file /tmp/fifo01 + +- Opens the fifo in read-write mode, covering one of the cases of the + switch statement (this should be successful) +- Closes the fifo + +- Opens the file in read-only, non-blocing mode, covering another case + of the switch (this should be successful) +- Closes the fifo + +- Opens the file in write-only, non-blocking mode, covering yet + another case in the switch. (this should not be successful, instead, + since we opened the fifo in a WRONLY and NONBLOCK mode, we receive + an ENXIO error) + +- fifo_open (pipe_new) maintains a static character variable, which it + uses to create semaphores and barriers. The value of this character + goes from a -> z -> a -> z... To hit the case where z is wrapped + back to a, fifo_open must be called a minimum total of 26 + times. This is achieved by repeated opens on the fifo file created. +- After every successful open, the file is closed + +- Remove fifo file +- Remove tmp directory |