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| author | Björn Gustavsson <[email protected]> | 2019-02-15 09:55:33 +0100 |
|---|---|---|
| committer | GitHub <[email protected]> | 2019-02-15 09:55:33 +0100 |
| commit | 595c159823089d0186ec2617c174356d1ff2de65 (patch) | |
| tree | 5c0a7ec7cf13c699b10daf284011a7a881e69eed /erts/doc/src/persistent_term.xml | |
| parent | 741109889b96e92c2edc38f4068e27ac5cd53fb8 (diff) | |
| parent | 0ab6149067a82d89e584f862604c1c63578fd5fa (diff) | |
| download | otp-595c159823089d0186ec2617c174356d1ff2de65.tar.gz otp-595c159823089d0186ec2617c174356d1ff2de65.tar.bz2 otp-595c159823089d0186ec2617c174356d1ff2de65.zip | |
Merge pull request #2140 from bjorng/bjorn/erts/persistent_term-default/ERL-843/OTP-15576
Add persistent_term:get(Key, DefaultValue)
Diffstat (limited to 'erts/doc/src/persistent_term.xml')
| -rw-r--r-- | erts/doc/src/persistent_term.xml | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/erts/doc/src/persistent_term.xml b/erts/doc/src/persistent_term.xml index 1eda7f8d76..9d3c9afd80 100644 --- a/erts/doc/src/persistent_term.xml +++ b/erts/doc/src/persistent_term.xml @@ -256,6 +256,22 @@ will be slower as the number of persistent terms increases.</pre> </func> <func> + <name name="get" arity="2" since="OTP 21.3"/> + <fsummary>Get the value for a persistent term.</fsummary> + <desc> + <p>Retrieve the value for the persistent term associated with + the key <c><anno>Key</anno></c>. The lookup will be made in + constant time and the value will not be copied to the heap + of the calling process.</p> + <p>This function returns <c><anno>Default</anno></c> if no + term has been stored with the key <c><anno>Key</anno></c>.</p> + <p>If the calling process holds on to the value of the + persistent term and the persistent term is deleted in the future, + the term will be copied to the process.</p> + </desc> + </func> + + <func> <name name="info" arity="0" since="OTP 21.2"/> <fsummary>Get information about persistent terms.</fsummary> <desc> |