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| author | Björn-Egil Dahlberg <[email protected]> | 2016-02-16 16:09:52 +0100 |
|---|---|---|
| committer | Björn-Egil Dahlberg <[email protected]> | 2016-02-23 15:37:02 +0100 |
| commit | bfdc47eca9d322680ccda988e4a1fae57f433e48 (patch) | |
| tree | 97fc4fbdda500c3ae5a3b35a7430fa0395f2495c /lib/kernel/doc/src/heart.xml | |
| parent | a3ed00b212fedb7dbe9dc5daf4c3beaf2c4dbe9d (diff) | |
| download | otp-bfdc47eca9d322680ccda988e4a1fae57f433e48.tar.gz otp-bfdc47eca9d322680ccda988e4a1fae57f433e48.tar.bz2 otp-bfdc47eca9d322680ccda988e4a1fae57f433e48.zip | |
kernel: Add heart validation callback documentation
Diffstat (limited to 'lib/kernel/doc/src/heart.xml')
| -rw-r--r-- | lib/kernel/doc/src/heart.xml | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/lib/kernel/doc/src/heart.xml b/lib/kernel/doc/src/heart.xml index b9fad17ce1..f32b74dc24 100644 --- a/lib/kernel/doc/src/heart.xml +++ b/lib/kernel/doc/src/heart.xml @@ -154,6 +154,34 @@ the empty string will be returned.</p> </desc> </func> + + <func> + <name name="set_callback" arity="2"/> + <fsummary>Set a validation callback</fsummary> + <desc> + <p> This validation callback will be executed before any heartbeat sent + to the port program. For the validation to succeed it needs to return + with the value <c>ok</c>. + </p> + <p> An exception within the callback will be treated as a validation failure. </p> + <p> The callback will be removed if the system reboots. </p> + </desc> + </func> + <func> + <name name="clear_callback" arity="0"/> + <fsummary>Clear the validation callback</fsummary> + <desc> + <p>Removes the validation callback call before heartbeats.</p> + </desc> + </func> + <func> + <name name="get_callback" arity="0"/> + <fsummary>Get the validation callback</fsummary> + <desc> + <p>Get the validation callback. If the callback is cleared, <c>none</c> will be returned.</p> + </desc> + </func> + </funcs> </erlref> |