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Add POSIX semaphores Cargo feature #142

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Jan 5, 2023
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Add POSIX semaphores Cargo feature #142

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9 changes: 9 additions & 0 deletions heed/Cargo.toml
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Expand Up @@ -47,6 +47,15 @@ sync-read-txn = []
lmdb = ["lmdb-rkv-sys"]
mdbx = ["mdbx-sys"]

# Whether to tell LMDB to use POSIX semaphores during compilation
# (instead of the default, which are System V semaphores).
# POSIX semaphores are required for Apple's App Sandbox on iOS & macOS,
# and are possibly faster and more appropriate for single-process use.
# There are tradeoffs for both POSIX and SysV semaphores; which you
# should look into before enabling this feature. Also, see here:
# https://github.com/LMDB/lmdb/blob/3947014aed7ffe39a79991fa7fb5b234da47ad1a/libraries/liblmdb/lmdb.h#L46-L69
posix-sem = ["lmdb-rkv-sys/posix-sem"]

# Enable the serde en/decoders for bincode or serde_json
serde-bincode = ["heed-types/serde", "heed-types/bincode"]
serde-json = ["heed-types/serde", "heed-types/serde_json"]
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