Abstract database behind generic interface and implement alternative drivers #322
4 changed files with 157 additions and 76 deletions
161
Cargo.lock
generated
161
Cargo.lock
generated
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@ -312,6 +312,15 @@ version = "0.13.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
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[[package]]
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name = "bincode"
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version = "1.3.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b1f45e9417d87227c7a56d22e471c6206462cba514c7590c09aff4cf6d1ddcad"
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dependencies = [
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"serde",
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]
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[[package]]
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name = "bitflags"
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version = "1.3.2"
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@ -344,6 +353,12 @@ version = "3.9.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a4a45a46ab1f2412e53d3a0ade76ffad2025804294569aae387231a0cd6e0899"
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[[package]]
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name = "bytemuck"
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version = "1.9.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "cdead85bdec19c194affaeeb670c0e41fe23de31459efd1c174d049269cf02cc"
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[[package]]
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name = "byteorder"
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version = "1.4.3"
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@ -381,6 +396,12 @@ dependencies = [
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"jobserver",
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]
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[[package]]
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name = "cfg-if"
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version = "0.1.10"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
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[[package]]
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name = "cfg-if"
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version = "1.0.0"
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@ -497,7 +518,7 @@ version = "1.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"
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dependencies = [
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"cfg-if",
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"cfg-if 1.0.0",
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]
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[[package]]
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@ -506,8 +527,8 @@ version = "0.5.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5aaa7bd5fb665c6864b5f963dd9097905c54125909c7aa94c9e18507cdbe6c53"
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dependencies = [
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"cfg-if",
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"crossbeam-utils",
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"cfg-if 1.0.0",
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"crossbeam-utils 0.8.8",
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]
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[[package]]
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@ -517,20 +538,39 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1145cf131a2c6ba0615079ab6a638f7e1973ac9c2634fcbeaaad6114246efe8c"
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dependencies = [
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"autocfg",
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"cfg-if",
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"crossbeam-utils",
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"cfg-if 1.0.0",
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"crossbeam-utils 0.8.8",
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"lazy_static",
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"memoffset",
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"scopeguard",
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]
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[[package]]
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name = "crossbeam-queue"
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version = "0.1.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7c979cd6cfe72335896575c6b5688da489e420d36a27a0b9eb0c73db574b4a4b"
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dependencies = [
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"crossbeam-utils 0.6.6",
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]
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[[package]]
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name = "crossbeam-utils"
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version = "0.6.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "04973fa96e96579258a5091af6003abde64af786b860f18622b82e026cca60e6"
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dependencies = [
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"cfg-if 0.1.10",
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"lazy_static",
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]
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[[package]]
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name = "crossbeam-utils"
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version = "0.8.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0bf124c720b7686e3c2663cf54062ab0f68a88af2fb6a030e87e30bf721fcb38"
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dependencies = [
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"cfg-if",
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"cfg-if 1.0.0",
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"lazy_static",
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]
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@ -614,7 +654,7 @@ version = "4.0.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e77a43b28d0668df09411cb0bc9a8c2adc40f9a048afe863e05fd43251e8e39c"
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dependencies = [
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"cfg-if",
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"cfg-if 1.0.0",
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"num_cpus",
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]
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@ -644,7 +684,7 @@ version = "2.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b98cf8ebf19c3d1b223e151f99a4f9f0690dca41414773390fc824184ac833e1"
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dependencies = [
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"cfg-if",
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"cfg-if 1.0.0",
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"dirs-sys-next",
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]
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@ -683,7 +723,7 @@ version = "0.8.30"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7896dc8abb250ffdda33912550faa54c88ec8b998dec0b2c55ab224921ce11df"
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dependencies = [
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"cfg-if",
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"cfg-if 1.0.0",
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]
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[[package]]
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@ -1016,8 +1056,8 @@ version = "0.8.0"
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dependencies = [
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"clap 3.1.18",
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"err-derive 0.3.1",
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"heed",
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"hexdump",
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"lmdb",
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"log",
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"mktemp",
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"rusqlite",
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@ -1274,7 +1314,7 @@ version = "0.2.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d39cd93900197114fa1fcb7ae84ca742095eed9442088988ae74fa744e930e77"
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dependencies = [
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"cfg-if",
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"cfg-if 1.0.0",
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"libc",
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"wasi 0.10.0+wasi-snapshot-preview1",
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]
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@ -1353,6 +1393,45 @@ version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
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[[package]]
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name = "heed"
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version = "0.11.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "269c7486ed6def5d7b59a427cec3e87b4d4dd4381d01e21c8c9f2d3985688392"
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dependencies = [
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"bytemuck",
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"byteorder",
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"heed-traits",
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"heed-types",
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"libc",
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"lmdb-rkv-sys",
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"once_cell",
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"page_size",
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"serde",
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"synchronoise",
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"url",
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]
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[[package]]
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name = "heed-traits"
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version = "0.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a53a94e5b2fd60417e83ffdfe136c39afacff0d4ac1d8d01cd66928ac610e1a2"
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[[package]]
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name = "heed-types"
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version = "0.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9a6cf0a6952fcedc992602d5cddd1e3fff091fbe87d38636e3ec23a31f32acbd"
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dependencies = [
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"bincode",
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"bytemuck",
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"byteorder",
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"heed-traits",
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"serde",
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"serde_json",
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]
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[[package]]
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name = "hermit-abi"
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version = "0.1.19"
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@ -1552,7 +1631,7 @@ version = "0.1.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
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dependencies = [
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"cfg-if",
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"cfg-if 1.0.0",
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]
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[[package]]
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@ -1824,21 +1903,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7fb9b38af92608140b86b693604b9ffcc5824240a484d1ecd4795bacb2fe88f3"
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[[package]]
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name = "lmdb"
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version = "0.8.0"
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name = "lmdb-rkv-sys"
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version = "0.11.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5b0908efb5d6496aa977d96f91413da2635a902e5e31dbef0bfb88986c248539"
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dependencies = [
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"bitflags",
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"libc",
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"lmdb-sys",
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]
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[[package]]
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name = "lmdb-sys"
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version = "0.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d5b392838cfe8858e86fac37cf97a0e8c55cc60ba0a18365cadc33092f128ce9"
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checksum = "61b9ce6b3be08acefa3003c57b7565377432a89ec24476bbe72e11d101f852fe"
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dependencies = [
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"cc",
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"libc",
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@ -1860,7 +1928,7 @@ version = "0.4.16"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6389c490849ff5bc16be905ae24bc913a9c8892e19b2341dbc175e14c341c2b8"
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dependencies = [
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"cfg-if",
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"cfg-if 1.0.0",
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]
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[[package]]
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@ -2018,7 +2086,7 @@ dependencies = [
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"arc-swap",
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"async-trait",
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"bytes 0.6.0",
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"cfg-if",
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"cfg-if 1.0.0",
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"err-derive 0.2.4",
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"futures",
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"hex",
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@ -2111,7 +2179,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0c7ae222234c30df141154f159066c5093ff73b63204dcda7121eb082fc56a95"
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dependencies = [
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"bitflags",
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"cfg-if",
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"cfg-if 1.0.0",
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"foreign-types",
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"libc",
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"once_cell",
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@ -2224,6 +2292,16 @@ version = "6.0.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "029d8d0b2f198229de29dca79676f2738ff952edf3fde542eb8bf94d8c21b435"
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[[package]]
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name = "page_size"
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version = "0.4.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "eebde548fbbf1ea81a99b128872779c437752fb99f217c45245e1a61dcd9edcd"
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dependencies = [
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"libc",
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"winapi",
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]
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[[package]]
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name = "parking_lot"
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version = "0.11.2"
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@ -2251,7 +2329,7 @@ version = "0.8.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d76e8e1493bcac0d2766c42737f34458f1c8c50c0d23bcb24ea953affb273216"
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dependencies = [
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"cfg-if",
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"cfg-if 1.0.0",
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"instant",
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"libc",
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"redox_syscall",
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@ -2265,7 +2343,7 @@ version = "0.9.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "28141e0cc4143da2443301914478dc976a61ffdb3f043058310c70df2fed8954"
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dependencies = [
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"cfg-if",
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"cfg-if 1.0.0",
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"libc",
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"redox_syscall",
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"smallvec",
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@ -2453,7 +2531,7 @@ version = "0.13.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b7f64969ffd5dd8f39bd57a68ac53c163a095ed9d0fb707146da1b27025a3504"
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dependencies = [
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"cfg-if",
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"cfg-if 1.0.0",
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"fnv",
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"lazy_static",
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"memchr",
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@ -3017,7 +3095,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4d58a1e1bf39749807d89cf2d98ac2dfa0ff1cb3faa38fbb64dd88ac8013d800"
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dependencies = [
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"block-buffer",
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"cfg-if",
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"cfg-if 1.0.0",
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"cpufeatures",
|
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"digest",
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"opaque-debug",
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@ -3052,7 +3130,7 @@ checksum = "7f96b4737c2ce5987354855aed3797279def4ebf734436c6aa4552cf8e169935"
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dependencies = [
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"crc32fast",
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"crossbeam-epoch",
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"crossbeam-utils",
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"crossbeam-utils 0.8.8",
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"fs2",
|
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"fxhash",
|
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"libc",
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@ -3186,6 +3264,15 @@ dependencies = [
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"unicode-xid",
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]
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[[package]]
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name = "synchronoise"
|
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version = "1.0.0"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "d717ed0efc9d39ab3b642a096bc369a3e02a38a51c41845d7fe31bdad1d6eaeb"
|
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dependencies = [
|
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"crossbeam-queue",
|
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]
|
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[[package]]
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name = "synstructure"
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version = "0.12.6"
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@ -3204,7 +3291,7 @@ version = "3.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5cdb1ef4eaeeaddc8fbd371e5017057064af0911902ef36b39801f67cc6d79e4"
|
||||
dependencies = [
|
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"cfg-if",
|
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"cfg-if 1.0.0",
|
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"fastrand",
|
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"libc",
|
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"redox_syscall",
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|
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@ -3503,7 +3590,7 @@ version = "0.1.32"
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "4a1bdf54a7c28a2bbf701e1d2233f6c77f473486b94bee4f9678da5a148dca7f"
|
||||
dependencies = [
|
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"cfg-if",
|
||||
"cfg-if 1.0.0",
|
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"log",
|
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"pin-project-lite",
|
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"tracing-attributes",
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|
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@ -3672,7 +3759,7 @@ version = "0.2.79"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "25f1af7423d8588a3d840681122e72e6a24ddbcb3f0ec385cac0d12d24256c06"
|
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dependencies = [
|
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"cfg-if",
|
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"cfg-if 1.0.0",
|
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"wasm-bindgen-macro",
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]
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|
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|
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@ -21,7 +21,7 @@ err-derive = "0.3"
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hexdump = "0.1"
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log = "0.4"
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|
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lmdb = "0.8"
|
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heed = "0.11"
|
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rusqlite = "0.27"
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sled = "0.34"
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|
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@ -7,26 +7,24 @@ use std::cell::RefCell;
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use std::collections::HashMap;
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use std::sync::{Arc, RwLock};
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|
||||
use lmdb::{
|
||||
Database, DatabaseFlags, Environment, RoTransaction, RwTransaction, Transaction, WriteFlags,
|
||||
};
|
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use heed::{Env, RoTxn, RwTxn, UntypedDatabase as Database};
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|
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use crate::{
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||||
Db, Error, IDb, ITx, ITxFn, IValue, Result, TxError, TxFnResult, TxResult, Value, ValueIter,
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||||
};
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|
||||
pub use lmdb;
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pub use heed;
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|
||||
// -- err
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|
||||
impl From<lmdb::Error> for Error {
|
||||
fn from(e: lmdb::Error) -> Error {
|
||||
impl From<heed::Error> for Error {
|
||||
fn from(e: heed::Error) -> Error {
|
||||
Error(format!("LMDB: {}", e).into())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T> From<lmdb::Error> for TxError<T> {
|
||||
fn from(e: lmdb::Error) -> TxError<T> {
|
||||
impl<T> From<heed::Error> for TxError<T> {
|
||||
fn from(e: heed::Error) -> TxError<T> {
|
||||
TxError::Db(e.into())
|
||||
}
|
||||
}
|
||||
|
|
@ -34,12 +32,12 @@ impl<T> From<lmdb::Error> for TxError<T> {
|
|||
// -- db
|
||||
|
||||
pub struct LmdbDb {
|
||||
db: lmdb::Environment,
|
||||
trees: RwLock<(Vec<lmdb::Database>, HashMap<String, usize>)>,
|
||||
db: heed::Env,
|
||||
trees: RwLock<(Vec<Database>, HashMap<String, usize>)>,
|
||||
}
|
||||
|
||||
impl LmdbDb {
|
||||
pub fn init(db: lmdb::Environment) -> Db {
|
||||
pub fn init(db: Env) -> Db {
|
||||
let s = Self {
|
||||
db,
|
||||
trees: RwLock::new((Vec::new(), HashMap::new())),
|
||||
|
|
@ -47,7 +45,7 @@ impl LmdbDb {
|
|||
Db(Arc::new(s))
|
||||
}
|
||||
|
||||
fn get_tree(&self, i: usize) -> Result<lmdb::Database> {
|
||||
fn get_tree(&self, i: usize) -> Result<Database> {
|
||||
self.trees
|
||||
.read()
|
||||
.unwrap()
|
||||
|
|
@ -64,7 +62,7 @@ impl IDb for LmdbDb {
|
|||
if let Some(i) = trees.1.get(name) {
|
||||
Ok(*i)
|
||||
} else {
|
||||
let tree = self.db.create_db(Some(name), DatabaseFlags::empty())?;
|
||||
let tree = self.db.create_database(Some(name))?;
|
||||
let i = trees.0.len();
|
||||
trees.0.push(tree);
|
||||
trees.1.insert(name.to_string(), i);
|
||||
|
|
@ -82,7 +80,7 @@ impl IDb for LmdbDb {
|
|||
let tree = self.get_tree(tree)?;
|
||||
|
||||
let res = TxAndValue {
|
||||
tx: self.db.begin_ro_txn()?,
|
||||
tx: self.db.read_txn()?,
|
||||
value: NonNull::dangling(),
|
||||
_pin: PhantomPinned,
|
||||
};
|
||||
|
|
@ -90,9 +88,9 @@ impl IDb for LmdbDb {
|
|||
|
||||
unsafe {
|
||||
let tx = NonNull::from(&boxed.tx);
|
||||
let val = match tx.as_ref().get(tree, &key) {
|
||||
Err(lmdb::Error::NotFound) => return Ok(None),
|
||||
v => v?,
|
||||
let val = match tree.get(tx.as_ref(), &key)? {
|
||||
None => return Ok(None),
|
||||
Some(v) => v,
|
||||
};
|
||||
|
||||
let mut_ref: Pin<&mut TxAndValue<'_>> = Pin::as_mut(&mut boxed);
|
||||
|
|
@ -112,8 +110,8 @@ impl IDb for LmdbDb {
|
|||
|
||||
fn insert(&self, tree: usize, key: &[u8], value: &[u8]) -> Result<()> {
|
||||
let tree = self.get_tree(tree)?;
|
||||
let mut tx = self.db.begin_rw_txn()?;
|
||||
tx.put(tree, &key, &value, WriteFlags::empty())?;
|
||||
let mut tx = self.db.write_txn()?;
|
||||
tree.put(&mut tx, &key, &value)?;
|
||||
tx.commit()?;
|
||||
Ok(())
|
||||
}
|
||||
|
|
@ -149,7 +147,7 @@ impl IDb for LmdbDb {
|
|||
let trees = self.trees.read().unwrap();
|
||||
let mut tx = LmdbTx {
|
||||
trees: &trees.0[..],
|
||||
tx: self.db.begin_rw_txn()?,
|
||||
tx: self.db.write_txn()?,
|
||||
};
|
||||
|
||||
let res = f.try_on(&mut tx);
|
||||
|
|
@ -159,11 +157,11 @@ impl IDb for LmdbDb {
|
|||
Ok(())
|
||||
}
|
||||
TxFnResult::Abort => {
|
||||
tx.tx.abort();
|
||||
tx.tx.abort()?;
|
||||
Err(TxError::Abort(()))
|
||||
}
|
||||
TxFnResult::DbErr => {
|
||||
tx.tx.abort();
|
||||
tx.tx.abort()?;
|
||||
Err(TxError::Db(Error(
|
||||
"(this message will be discarded)".into(),
|
||||
)))
|
||||
|
|
@ -176,7 +174,7 @@ impl IDb for LmdbDb {
|
|||
|
||||
struct LmdbTx<'a, 'db> {
|
||||
trees: &'db [Database],
|
||||
tx: RwTransaction<'a>,
|
||||
tx: RwTxn<'a, 'a>,
|
||||
}
|
||||
|
||||
impl<'a, 'db> LmdbTx<'a, 'db> {
|
||||
|
|
@ -192,10 +190,9 @@ impl<'a, 'db> LmdbTx<'a, 'db> {
|
|||
impl<'a, 'db> ITx for LmdbTx<'a, 'db> {
|
||||
fn get(&self, tree: usize, key: &[u8]) -> Result<Option<Value<'_>>> {
|
||||
let tree = self.get_tree(tree)?;
|
||||
match self.tx.get::<'a, _>(*tree, &key) {
|
||||
Err(lmdb::Error::NotFound) => Ok(None),
|
||||
Err(e) => Err(e.into()),
|
||||
Ok(v) => Ok(Some(Value(Box::new(v)))),
|
||||
match tree.get(&self.tx, &key)? {
|
||||
Some(v) => Ok(Some(Value(Box::new(v)))),
|
||||
None => Ok(None),
|
||||
}
|
||||
}
|
||||
fn len(&self, _tree: usize) -> Result<usize> {
|
||||
|
|
@ -203,17 +200,14 @@ impl<'a, 'db> ITx for LmdbTx<'a, 'db> {
|
|||
}
|
||||
|
||||
fn insert(&mut self, tree: usize, key: &[u8], value: &[u8]) -> Result<()> {
|
||||
let tree = self.get_tree(tree)?;
|
||||
self.tx.put(*tree, &key, &value, WriteFlags::empty())?;
|
||||
let tree = *self.get_tree(tree)?;
|
||||
tree.put(&mut self.tx, &key, &value)?;
|
||||
Ok(())
|
||||
}
|
||||
fn remove(&mut self, tree: usize, key: &[u8]) -> Result<bool> {
|
||||
let tree = self.get_tree(tree)?;
|
||||
match self.tx.del::<'a, _>(*tree, &key, None) {
|
||||
Ok(()) => Ok(true),
|
||||
Err(lmdb::Error::NotFound) => Ok(false),
|
||||
Err(e) => Err(e.into()),
|
||||
}
|
||||
let tree = *self.get_tree(tree)?;
|
||||
let deleted = tree.delete(&mut self.tx, &key)?;
|
||||
Ok(deleted)
|
||||
}
|
||||
|
||||
fn iter(&self, _tree: usize) -> Result<ValueIter<'_>> {
|
||||
|
|
@ -244,7 +238,7 @@ impl<'a, 'db> ITx for LmdbTx<'a, 'db> {
|
|||
// ----
|
||||
|
||||
struct TxAndValue<'a> {
|
||||
tx: RoTransaction<'a>,
|
||||
tx: RoTxn<'a>,
|
||||
value: NonNull<&'a [u8]>,
|
||||
_pin: PhantomPinned,
|
||||
}
|
||||
|
|
|
|||
|
|
@ -82,8 +82,8 @@ fn test_suite(db: Db) {
|
|||
#[test]
|
||||
fn test_lmdb_db() {
|
||||
let path = mktemp::Temp::new_dir().unwrap();
|
||||
let db = lmdb::Environment::new()
|
||||
.set_max_dbs(100)
|
||||
let db = heed::EnvOpenOptions::new()
|
||||
.max_dbs(100)
|
||||
.open(&path)
|
||||
.unwrap();
|
||||
let db = LmdbDb::init(db);
|
||||
|
|
|
|||
Loading…
Reference in a new issue