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Diffstat (limited to 'doc/user/signal.t')
| -rw-r--r-- | doc/user/signal.t | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/doc/user/signal.t b/doc/user/signal.t index 012824fc71..50beb752f9 100644 --- a/doc/user/signal.t +++ b/doc/user/signal.t @@ -37,11 +37,16 @@ signal is sent to a task, that task's execution path will be "interrupted" by the ASR. Sending a signal to a task has no effect on the receiving task's current execution state. +@findex rtems_signal_set + A signal flag is used by a task (or ISR) to inform another task of the occurrence of a significant situation. Thirty-two signal flags are associated with each task. A collection of one or more signals is referred to as a signal -set. A signal set is posted when it is directed (or sent) to a +set. The data type @code{@value{DIRPREFIX}signal_set} +is used to manipulate signal sets. + +A signal set is posted when it is directed (or sent) to a task. A pending signal is a signal that has been sent to a task with a valid ASR, but has not been processed by that task's ASR. @@ -216,6 +221,7 @@ The ASR should have the following calling sequence and adhere to @value{LANGUAGE} calling conventions: @ifset is-C +@findex rtems_asr @example rtems_asr user_routine( rtems_signal_set signals |