Merge branch 'master' into 2020-05-27-check-data-space-map
This commit is contained in:
Joe Thornber
commit
01a7462ece
3
.gitignore
vendored
3
.gitignore
vendored
@ -14,6 +14,8 @@ test.data
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487
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Normal file
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name = "unicode-width"
|
||||
version = "0.1.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "unicode-xid"
|
||||
version = "0.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "vec_map"
|
||||
version = "0.8.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "version_check"
|
||||
version = "0.9.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "wasi"
|
||||
version = "0.9.0+wasi-snapshot-preview1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
||||
version = "0.3.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-i686-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "winapi-x86_64-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[metadata]
|
||||
"checksum adler32 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "5d2e7343e7fc9de883d1b0341e0b13970f764c14101234857d2ddafa1cb1cac2"
|
||||
"checksum aho-corasick 0.7.10 (registry+https://github.com/rust-lang/crates.io-index)" = "8716408b8bc624ed7f65d223ddb9ac2d044c0547b6fa4b0d554f3a9540496ada"
|
||||
"checksum ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
|
||||
"checksum arrayvec 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)" = "cd9fd44efafa8690358b7408d253adf110036b88f55672a933f01d616ad9b1b9"
|
||||
"checksum atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)" = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
|
||||
"checksum autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f8aac770f1885fd7e387acedd76065302551364496e46b3dd00860b2f8359b9d"
|
||||
"checksum bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
|
||||
"checksum byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "08c48aae112d48ed9f069b33538ea9e3e90aa263cfa3d1c24309612b1f7472de"
|
||||
"checksum cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b486ce3ccf7ffd79fdeb678eac06a9e6c09fc88d33836340becb8fffe87c5e33"
|
||||
"checksum clap 2.33.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bdfa80d47f954d53a35a64987ca1422f495b8d6483c0fe9f7117b36c2a792129"
|
||||
"checksum crc32c 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "77ba37ef26c12988c1cee882d522d65e1d5d2ad8c3864665b88ee92767ed84c5"
|
||||
"checksum crc32fast 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ba125de2af0df55319f41944744ad91c71113bf74a4646efff39afe1f6842db1"
|
||||
"checksum env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
|
||||
"checksum flate2 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)" = "2cfff41391129e0a856d6d822600b8d71179d46879e310417eb9c762eb178b42"
|
||||
"checksum getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "7abc8dd8451921606d809ba32e95b6111925cd2906060d2dcc29c070220503eb"
|
||||
"checksum hermit-abi 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "91780f809e750b0a89f5544be56617ff6b1227ee485bcb06ebe10cdf89bd3b71"
|
||||
"checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
|
||||
"checksum lexical-core 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)" = "f86d66d380c9c5a685aaac7a11818bdfa1f733198dfd9ec09c70b762cd12ad6f"
|
||||
"checksum libc 0.2.71 (registry+https://github.com/rust-lang/crates.io-index)" = "9457b06509d27052635f90d6466700c65095fdf75409b3fbdd903e988b886f49"
|
||||
"checksum log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "14b6052be84e6b71ab17edffc2eeabf5c2c3ae1fdb464aae35ac50c67a44e1f7"
|
||||
"checksum memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3728d817d99e5ac407411fa471ff9800a778d88a24685968b36824eaf4bee400"
|
||||
"checksum miniz_oxide 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "aa679ff6578b1cddee93d7e82e263b94a575e0bfced07284eb0c037c1d2416a5"
|
||||
"checksum nodrop 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "72ef4a56884ca558e5ddb05a1d1e7e1bfd9a68d9ed024c21704cc98872dae1bb"
|
||||
"checksum nom 5.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0b471253da97532da4b61552249c521e01e736071f71c1a4f7ebbfbf0a06aad6"
|
||||
"checksum num-derive 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0c8b15b261814f992e33760b1fca9fe8b693d8a65299f20c9901688636cfb746"
|
||||
"checksum num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "c62be47e61d1842b9170f0fdeec8eba98e60e90e5446449a0545e5152acd7096"
|
||||
"checksum num_cpus 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)" = "05499f3756671c15885fee9034446956fff3f243d6077b91e5767df161f766b3"
|
||||
"checksum ppv-lite86 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "237a5ed80e274dbc66f86bd59c1e25edc039660be53194b5fe0a482e0f2612ea"
|
||||
"checksum proc-macro2 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)" = "beae6331a816b1f65d04c45b078fd8e6c93e8071771f41b8163255bbd8d7c8fa"
|
||||
"checksum quickcheck 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a44883e74aa97ad63db83c4bf8ca490f02b2fc02f92575e720c8551e843c945f"
|
||||
"checksum quickcheck_macros 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "608c156fd8e97febc07dc9c2e2c80bf74cfc6ef26893eae3daf8bc2bc94a4b7f"
|
||||
"checksum quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "54a21852a652ad6f610c9510194f398ff6f8692e334fd1145fed931f7fbe44ea"
|
||||
"checksum rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
|
||||
"checksum rand_chacha 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f4c8ed856279c9737206bf725bf36935d8666ead7aa69b52be55af369d193402"
|
||||
"checksum rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
|
||||
"checksum rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
|
||||
"checksum regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "9c3780fcf44b193bc4d09f36d2a3c87b251da4a046c87795a0d35f4f927ad8e6"
|
||||
"checksum regex-syntax 0.6.18 (registry+https://github.com/rust-lang/crates.io-index)" = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
|
||||
"checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
|
||||
"checksum ryu 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
|
||||
"checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
|
||||
"checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
|
||||
"checksum static_assertions 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "7f3eb36b47e512f8f1c9e3d10c2c1965bc992bd9cdb024fa581e2194501c83d3"
|
||||
"checksum strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
|
||||
"checksum syn 1.0.30 (registry+https://github.com/rust-lang/crates.io-index)" = "93a56fabc59dce20fe48b6c832cc249c713e7ed88fa28b0ee0a3bfcaae5fe4e2"
|
||||
"checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
|
||||
"checksum thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
|
||||
"checksum unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
|
||||
"checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
|
||||
"checksum vec_map 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
|
||||
"checksum version_check 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
|
||||
"checksum wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)" = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
|
||||
"checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
|
||||
"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||
"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||
22
Cargo.toml
Normal file
22
Cargo.toml
Normal file
@ -0,0 +1,22 @@
|
||||
[package]
|
||||
name = "thinp"
|
||||
version = "0.1.0"
|
||||
authors = ["Joe Thornber <ejt@redhat.com>"]
|
||||
edition = "2018"
|
||||
license = "GPL3"
|
||||
|
||||
[dependencies]
|
||||
byteorder = "1.3"
|
||||
clap = "2.33"
|
||||
crc32c = "0.4"
|
||||
flate2 = "1.0"
|
||||
libc = "0.2.71"
|
||||
nom = "5.1"
|
||||
num_cpus = "1.13"
|
||||
rand = "0.7"
|
||||
num-traits = "0.2"
|
||||
num-derive = "0.3"
|
||||
|
||||
[dev-dependencies]
|
||||
quickcheck = "0.9"
|
||||
quickcheck_macros = "0.9"
|
||||
15
Makefile.in
15
Makefile.in
@ -114,7 +114,6 @@ SOURCE=\
|
||||
thin-provisioning/thin_dump.cc \
|
||||
thin-provisioning/thin_ls.cc \
|
||||
thin-provisioning/thin_metadata_size.cc \
|
||||
thin-provisioning/thin_metadata_pack.cc \
|
||||
thin-provisioning/thin_pool.cc \
|
||||
thin-provisioning/thin_repair.cc \
|
||||
thin-provisioning/thin_restore.cc \
|
||||
@ -273,8 +272,6 @@ TOOLS:=\
|
||||
thin_repair \
|
||||
thin_restore \
|
||||
thin_rmap \
|
||||
thin_metadata_pack \
|
||||
thin_metadata_unpack \
|
||||
thin_metadata_size \
|
||||
thin_trim \
|
||||
era_check \
|
||||
@ -301,8 +298,6 @@ install: bin/pdata_tools $(MANPAGES)
|
||||
ln -s -f pdata_tools $(BINDIR)/thin_repair
|
||||
ln -s -f pdata_tools $(BINDIR)/thin_restore
|
||||
ln -s -f pdata_tools $(BINDIR)/thin_rmap
|
||||
ln -s -f pdata_tools $(BINDIR)/thin_metadata_pack
|
||||
ln -s -f pdata_tools $(BINDIR)/thin_metadata_unpack
|
||||
ln -s -f pdata_tools $(BINDIR)/thin_metadata_size
|
||||
ln -s -f pdata_tools $(BINDIR)/thin_trim
|
||||
ln -s -f pdata_tools $(BINDIR)/era_check
|
||||
@ -323,8 +318,7 @@ install: bin/pdata_tools $(MANPAGES)
|
||||
$(INSTALL_DATA) man8/thin_repair.8 $(MANPATH)/man8
|
||||
$(INSTALL_DATA) man8/thin_restore.8 $(MANPATH)/man8
|
||||
$(INSTALL_DATA) man8/thin_rmap.8 $(MANPATH)/man8
|
||||
$(INSTALL_DATA) man8/thin_metadata_pack.8 $(MANPATH)/man8
|
||||
$(INSTALL_DATA) man8/thin_metadata_unpack.8 $(MANPATH)/man8
|
||||
|
||||
$(INSTALL_DATA) man8/thin_metadata_size.8 $(MANPATH)/man8
|
||||
$(INSTALL_DATA) man8/era_check.8 $(MANPATH)/man8
|
||||
$(INSTALL_DATA) man8/era_dump.8 $(MANPATH)/man8
|
||||
@ -339,9 +333,12 @@ ifeq ("@DEVTOOLS@", "yes")
|
||||
ln -s -f pdata_tools $(BINDIR)/thin_scan
|
||||
endif
|
||||
|
||||
# $(INSTALL_DATA) man8/era_restore.8 $(MANPATH)/man8
|
||||
.PHONY: install install-rust-tools
|
||||
|
||||
.PHONY: install
|
||||
install-rust-tools:
|
||||
cargo install --path . --root $(BINDIR)
|
||||
$(INSTALL_DATA) man8/thin_metadata_pack.8 $(MANPATH)/man8
|
||||
$(INSTALL_DATA) man8/thin_metadata_unpack.8 $(MANPATH)/man8
|
||||
|
||||
ifeq ("@TESTING@", "yes")
|
||||
include unit-tests/Makefile
|
||||
|
||||
11
README.md
11
README.md
@ -13,6 +13,12 @@ The [expat](http://expat.sourceforge.net/) xml parser library (version 1).
|
||||
The libaio library (note this is not the same as the aio library that you get by linking -lrt)
|
||||
make, autoconf etc.
|
||||
|
||||
A couple of non-essential tools are written in rust, and will
|
||||
require cargo and rustcc to be installed:
|
||||
|
||||
thin_metadata_pack
|
||||
thin_metadata_unpack
|
||||
|
||||
There are more requirements for testing, detailed below.
|
||||
|
||||
Building
|
||||
@ -23,6 +29,11 @@ Building
|
||||
make
|
||||
sudo make install
|
||||
|
||||
Building Rust tools
|
||||
===================
|
||||
|
||||
sudo make install-rust-tools
|
||||
|
||||
Quick examples
|
||||
==============
|
||||
|
||||
|
||||
@ -1 +1 @@
|
||||
pdata_tools
|
||||
../target/release/thin_metadata_pack
|
||||
@ -1 +1 @@
|
||||
pdata_tools
|
||||
../target/release/thin_metadata_unpack
|
||||
@ -210,5 +210,6 @@ Makefile
|
||||
contrib/Makefile
|
||||
unit-tests/Makefile
|
||||
version.h
|
||||
src/version.rs
|
||||
])
|
||||
AC_OUTPUT
|
||||
|
||||
@ -75,20 +75,34 @@ Options:
|
||||
{-V|--version}")
|
||||
|
||||
(define thin-metadata-pack-help
|
||||
"Usage: thin_metadata_pack [options]
|
||||
Options:
|
||||
{-i|--input} <input metadata (binary format)>
|
||||
{-o|--output} <output packed metadata>
|
||||
{-h|--help}
|
||||
{-V|--version}")
|
||||
"thin_metadata_pack 0.8.5
|
||||
Produces a compressed file of thin metadata. Only packs metadata blocks that are actually used.
|
||||
|
||||
USAGE:
|
||||
thin_metadata_pack -i <DEV> -o <FILE>
|
||||
|
||||
FLAGS:
|
||||
-h, --help Prints help information
|
||||
-V, --version Prints version information
|
||||
|
||||
OPTIONS:
|
||||
-i <DEV> Specify thinp metadata binary device/file
|
||||
-o <FILE> Specify packed output file")
|
||||
|
||||
(define thin-metadata-unpack-help
|
||||
"Usage: thin_metadata_unpack [options]
|
||||
Options:
|
||||
{-i|--input} <input packed metadata>
|
||||
{-o|--output} <output metadata (binary format)>
|
||||
{-h|--help}
|
||||
{-V|--version}")
|
||||
"thin_metadata_unpack 0.8.5
|
||||
Unpack a compressed file of thin metadata.
|
||||
|
||||
USAGE:
|
||||
thin_metadata_unpack -i <DEV> -o <FILE>
|
||||
|
||||
FLAGS:
|
||||
-h, --help Prints help information
|
||||
-V, --version Prints version information
|
||||
|
||||
OPTIONS:
|
||||
-i <DEV> Specify thinp metadata binary device/file
|
||||
-o <FILE> Specify packed output file")
|
||||
|
||||
(define cache-check-help
|
||||
"Usage: cache_check [options] {device|file}
|
||||
|
||||
@ -509,17 +509,17 @@
|
||||
;;;-----------------------------------------------------------
|
||||
|
||||
(define-scenario (thin-metadata-pack version)
|
||||
"thin_metadata_pack accepts --version"
|
||||
"accepts --version"
|
||||
(run-ok-rcv (stdout _) (thin-metadata-pack "--version")
|
||||
(assert-equal tools-version stdout)))
|
||||
(assert-equal "thin_metadata_pack 0.8.5" stdout)))
|
||||
|
||||
(define-scenario (thin-metadata-pack h)
|
||||
"thin_metadata_pack accepts -h"
|
||||
"accepts -h"
|
||||
(run-ok-rcv (stdout _) (thin-metadata-pack "-h")
|
||||
(assert-equal thin-metadata-pack-help stdout)))
|
||||
|
||||
(define-scenario (thin-metadata-pack help)
|
||||
"thin_metadata_pack accepts --help"
|
||||
"accepts --help"
|
||||
(run-ok-rcv (stdout _) (thin-metadata-pack "--help")
|
||||
(assert-equal thin-metadata-pack-help stdout)))
|
||||
|
||||
@ -527,41 +527,41 @@
|
||||
"Unrecognised option should cause failure"
|
||||
(with-valid-metadata (md)
|
||||
(run-fail-rcv (stdout stderr) (thin-metadata-pack "--unleash-the-hedgehogs")
|
||||
(assert-matches ".*thin_metadata_pack: unrecognized option '--unleash-the-hedgehogs" stderr))))
|
||||
(assert-starts-with "error: Found argument '--unleash-the-hedgehogs'" stderr))))
|
||||
|
||||
(define-scenario (thin-metadata-pack missing-input-file)
|
||||
"the input file wasn't specified"
|
||||
(with-empty-metadata (md)
|
||||
(run-fail-rcv (_ stderr) (thin-metadata-pack "-o " md)
|
||||
(assert-starts-with "No input file provided." stderr))))
|
||||
(assert-starts-with "error: The following required arguments were not provided:\n -i <DEV>" stderr))))
|
||||
|
||||
(define-scenario (thin-metadata-pack no-such-input-file)
|
||||
"the input file can't be found"
|
||||
(with-empty-metadata (md)
|
||||
(run-fail-rcv (_ stderr) (thin-metadata-pack "-i no-such-file -o" md)
|
||||
(assert-starts-with "Couldn't stat path" stderr))))
|
||||
(assert-starts-with "Couldn't find input file" stderr))))
|
||||
|
||||
(define-scenario (thin-metadata-pack missing-output-file)
|
||||
"the output file wasn't specified"
|
||||
(with-empty-metadata (md)
|
||||
(run-fail-rcv (_ stderr) (thin-metadata-pack "-i" md)
|
||||
(assert-starts-with "No output file provided." stderr))))
|
||||
(assert-starts-with "error: The following required arguments were not provided:\n -o <FILE>" stderr))))
|
||||
|
||||
;;;-----------------------------------------------------------
|
||||
;;; thin_metadata_pack scenarios
|
||||
;;; thin_metadata_unpack scenarios
|
||||
;;;-----------------------------------------------------------
|
||||
(define-scenario (thin-metadata-unpack version)
|
||||
"thin_metadata_pack accepts --version"
|
||||
"accepts --version"
|
||||
(run-ok-rcv (stdout _) (thin-metadata-unpack "--version")
|
||||
(assert-equal tools-version stdout)))
|
||||
(assert-equal "thin_metadata_unpack 0.8.5" stdout)))
|
||||
|
||||
(define-scenario (thin-metadata-unpack h)
|
||||
"thin_metadata_pack accepts -h"
|
||||
"accepts -h"
|
||||
(run-ok-rcv (stdout _) (thin-metadata-unpack "-h")
|
||||
(assert-equal thin-metadata-unpack-help stdout)))
|
||||
|
||||
(define-scenario (thin-metadata-unpack help)
|
||||
"thin_metadata_pack accepts --help"
|
||||
"accepts --help"
|
||||
(run-ok-rcv (stdout _) (thin-metadata-unpack "--help")
|
||||
(assert-equal thin-metadata-unpack-help stdout)))
|
||||
|
||||
@ -569,25 +569,25 @@
|
||||
"Unrecognised option should cause failure"
|
||||
(with-valid-metadata (md)
|
||||
(run-fail-rcv (stdout stderr) (thin-metadata-unpack "--unleash-the-hedgehogs")
|
||||
(assert-matches ".*thin_metadata_unpack: unrecognized option '--unleash-the-hedgehogs" stderr))))
|
||||
(assert-starts-with "error: Found argument '--unleash-the-hedgehogs'" stderr))))
|
||||
|
||||
(define-scenario (thin-metadata-unpack missing-input-file)
|
||||
"the input file wasn't specified"
|
||||
(with-empty-metadata (md)
|
||||
(run-fail-rcv (_ stderr) (thin-metadata-unpack "-o " md)
|
||||
(assert-starts-with "No input file provided." stderr))))
|
||||
(assert-starts-with "error: The following required arguments were not provided:\n -i <DEV>" stderr))))
|
||||
|
||||
(define-scenario (thin-metadata-unpack no-such-input-file)
|
||||
"the input file can't be found"
|
||||
(with-empty-metadata (md)
|
||||
(run-fail-rcv (_ stderr) (thin-metadata-unpack "-i no-such-file -o" md)
|
||||
(assert-starts-with "Couldn't open pack file" stderr))))
|
||||
(assert-starts-with "Couldn't find input file" stderr))))
|
||||
|
||||
(define-scenario (thin-metadata-unpack missing-output-file)
|
||||
"the output file wasn't specified"
|
||||
(with-empty-metadata (md)
|
||||
(run-fail-rcv (_ stderr) (thin-metadata-unpack "-i" md)
|
||||
(assert-starts-with "No output file provided." stderr))))
|
||||
(assert-starts-with "error: The following required arguments were not provided:\n -o <FILE>" stderr))))
|
||||
|
||||
(define-scenario (thin-metadata-unpack garbage-input-file)
|
||||
"the input file is just zeroes"
|
||||
|
||||
@ -97,6 +97,12 @@ namespace {
|
||||
add_op(b, block_op(SET, c));
|
||||
else {
|
||||
recursing_lock lock(*this);
|
||||
|
||||
// the inner set_count may trigger a find_free,
|
||||
// so it's important we update the allocated
|
||||
// blocks list before calling.
|
||||
allocated_blocks_.add(b, b + 1);
|
||||
|
||||
return sm_->set_count(b, c);
|
||||
}
|
||||
}
|
||||
@ -111,6 +117,12 @@ namespace {
|
||||
add_op(b, block_op(INC, count));
|
||||
else {
|
||||
recursing_lock lock(*this);
|
||||
|
||||
// the inner inc() may trigger a find_free,
|
||||
// so it's important we update the allocated
|
||||
// blocks list before calling.
|
||||
allocated_blocks_.add(b, b + 1);
|
||||
|
||||
return sm_->inc(b, count);
|
||||
}
|
||||
}
|
||||
@ -200,9 +212,11 @@ namespace {
|
||||
void flush_ops_() {
|
||||
recursing_lock lock(*this);
|
||||
|
||||
for (auto const &p : ops_) {
|
||||
block_address b = p.first;
|
||||
auto const &op = p.second;
|
||||
while (!ops_.empty()) {
|
||||
auto p = ops_.begin();
|
||||
block_address b = p->first;
|
||||
auto op = p->second;
|
||||
ops_.erase(p);
|
||||
|
||||
switch (op.op_) {
|
||||
case INC:
|
||||
@ -218,7 +232,6 @@ namespace {
|
||||
}
|
||||
}
|
||||
|
||||
ops_.clear();
|
||||
allocated_blocks_.clear();
|
||||
}
|
||||
|
||||
|
||||
1
rustfmt.toml
Normal file
1
rustfmt.toml
Normal file
@ -0,0 +1 @@
|
||||
reorder_imports = true
|
||||
38
src/bin/thin_metadata_pack.rs
Normal file
38
src/bin/thin_metadata_pack.rs
Normal file
@ -0,0 +1,38 @@
|
||||
extern crate clap;
|
||||
extern crate thinp;
|
||||
|
||||
use clap::{App, Arg};
|
||||
use std::process::exit;
|
||||
use thinp::file_utils;
|
||||
|
||||
fn main() {
|
||||
let parser = App::new("thin_metadata_pack")
|
||||
.version(thinp::version::TOOLS_VERSION)
|
||||
.about("Produces a compressed file of thin metadata. Only packs metadata blocks that are actually used.")
|
||||
.arg(Arg::with_name("INPUT")
|
||||
.help("Specify thinp metadata binary device/file")
|
||||
.required(true)
|
||||
.short("i")
|
||||
.value_name("DEV")
|
||||
.takes_value(true))
|
||||
.arg(Arg::with_name("OUTPUT")
|
||||
.help("Specify packed output file")
|
||||
.required(true)
|
||||
.short("o")
|
||||
.value_name("FILE")
|
||||
.takes_value(true));
|
||||
|
||||
let matches = parser.get_matches();
|
||||
let input_file = matches.value_of("INPUT").unwrap();
|
||||
let output_file = matches.value_of("OUTPUT").unwrap();
|
||||
|
||||
if !file_utils::file_exists(input_file) {
|
||||
eprintln!("Couldn't find input file '{}'.", &input_file);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if let Err(reason) = thinp::pack::pack::pack(&input_file, &output_file) {
|
||||
println!("Application error: {}\n", reason);
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
40
src/bin/thin_metadata_unpack.rs
Normal file
40
src/bin/thin_metadata_unpack.rs
Normal file
@ -0,0 +1,40 @@
|
||||
extern crate clap;
|
||||
extern crate thinp;
|
||||
|
||||
use clap::{App, Arg};
|
||||
use std::process;
|
||||
use thinp::file_utils;
|
||||
|
||||
use std::process::exit;
|
||||
|
||||
fn main() {
|
||||
let parser = App::new("thin_metadata_unpack")
|
||||
.version(thinp::version::TOOLS_VERSION)
|
||||
.about("Unpack a compressed file of thin metadata.")
|
||||
.arg(Arg::with_name("INPUT")
|
||||
.help("Specify thinp metadata binary device/file")
|
||||
.required(true)
|
||||
.short("i")
|
||||
.value_name("DEV")
|
||||
.takes_value(true))
|
||||
.arg(Arg::with_name("OUTPUT")
|
||||
.help("Specify packed output file")
|
||||
.required(true)
|
||||
.short("o")
|
||||
.value_name("FILE")
|
||||
.takes_value(true));
|
||||
|
||||
let matches = parser.get_matches();
|
||||
let input_file = matches.value_of("INPUT").unwrap();
|
||||
let output_file = matches.value_of("OUTPUT").unwrap();
|
||||
|
||||
if !file_utils::file_exists(input_file) {
|
||||
eprintln!("Couldn't find input file '{}'.", &input_file);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if let Err(reason) = thinp::pack::pack::unpack(&input_file, &output_file) {
|
||||
println!("Application error: {}", reason);
|
||||
process::exit(1);
|
||||
}
|
||||
}
|
||||
51
src/block_manager.rs
Normal file
51
src/block_manager.rs
Normal file
@ -0,0 +1,51 @@
|
||||
use std::io;
|
||||
use std::io::{Read, Seek};
|
||||
use std::fs::OpenOptions;
|
||||
use std::os::unix::fs::OpenOptionsExt;
|
||||
use std::fs::File;
|
||||
|
||||
pub const BLOCK_SIZE: usize = 4096;
|
||||
|
||||
#[repr(align(4096))]
|
||||
pub struct Block {
|
||||
pub data: [u8; BLOCK_SIZE as usize],
|
||||
}
|
||||
|
||||
pub struct BlockManager {
|
||||
pub nr_blocks: u64,
|
||||
input: File,
|
||||
}
|
||||
|
||||
fn get_nr_blocks(path: &str) -> io::Result<u64> {
|
||||
let metadata = std::fs::metadata(path)?;
|
||||
Ok(metadata.len() / (BLOCK_SIZE as u64))
|
||||
}
|
||||
|
||||
impl BlockManager {
|
||||
pub fn new(path: &str, _cache_size: usize) -> io::Result<BlockManager> {
|
||||
let input = OpenOptions::new()
|
||||
.read(true)
|
||||
.write(false)
|
||||
.custom_flags(libc::O_DIRECT)
|
||||
.open(path)?;
|
||||
|
||||
Ok(BlockManager {
|
||||
nr_blocks: get_nr_blocks(path)?,
|
||||
input: input,
|
||||
})
|
||||
}
|
||||
|
||||
pub fn get(&mut self, b: u64) -> io::Result<Block> {
|
||||
self.read_block(b)
|
||||
}
|
||||
|
||||
fn read_block(&mut self, b: u64) -> io::Result<Block>
|
||||
{
|
||||
let mut buf = Block {data: [0; BLOCK_SIZE]};
|
||||
|
||||
self.input.seek(io::SeekFrom::Start(b * (BLOCK_SIZE as u64)))?;
|
||||
self.input.read_exact(&mut buf.data)?;
|
||||
|
||||
Ok(buf)
|
||||
}
|
||||
}
|
||||
13
src/check.rs
Normal file
13
src/check.rs
Normal file
@ -0,0 +1,13 @@
|
||||
use std::error::Error;
|
||||
|
||||
use crate::block_manager::BlockManager;
|
||||
|
||||
pub fn check(dev: &str) -> Result<(), Box<dyn Error>> {
|
||||
let mut bm = BlockManager::new(dev, 1024)?;
|
||||
|
||||
for b in 0..100 {
|
||||
let _block = bm.get(b)?;
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
18
src/lib.rs
Normal file
18
src/lib.rs
Normal file
@ -0,0 +1,18 @@
|
||||
extern crate byteorder;
|
||||
extern crate crc32c;
|
||||
extern crate flate2;
|
||||
extern crate nom;
|
||||
extern crate num_cpus;
|
||||
|
||||
#[cfg(test)]
|
||||
extern crate quickcheck;
|
||||
#[cfg(test)]
|
||||
#[macro_use(quickcheck)]
|
||||
#[cfg(test)]
|
||||
extern crate quickcheck_macros;
|
||||
|
||||
pub mod block_manager;
|
||||
pub mod check;
|
||||
pub mod file_utils;
|
||||
pub mod pack;
|
||||
pub mod version;
|
||||
169
src/pack/delta_list.rs
Normal file
169
src/pack/delta_list.rs
Normal file
@ -0,0 +1,169 @@
|
||||
//-------------------------------------------------
|
||||
|
||||
#[derive(PartialEq, Debug, Clone)]
|
||||
pub enum Delta {
|
||||
Base { n: u64 },
|
||||
Const { count: u64 },
|
||||
Pos { delta: u64, count: u64 },
|
||||
Neg { delta: u64, count: u64 },
|
||||
}
|
||||
|
||||
use Delta::*;
|
||||
|
||||
pub fn to_delta(ns: &[u64]) -> Vec<Delta> {
|
||||
let mut ds = Vec::new();
|
||||
|
||||
if ns.len() > 0 {
|
||||
let mut base = ns[0];
|
||||
ds.push(Base { n: base });
|
||||
|
||||
let mut i = 1;
|
||||
while i < ns.len() {
|
||||
let n = ns[i];
|
||||
if n > base {
|
||||
let delta = n - base;
|
||||
let mut count = 1;
|
||||
while i < ns.len() && (ns[i] == (base + (count * delta))) {
|
||||
i += 1;
|
||||
count += 1;
|
||||
}
|
||||
count -= 1;
|
||||
ds.push(Pos {
|
||||
delta: delta,
|
||||
count: count,
|
||||
});
|
||||
base += delta * count;
|
||||
} else if n < base {
|
||||
let delta = base - n;
|
||||
let mut count = 1;
|
||||
while i < ns.len() && (ns[i] + (count * delta) == base) {
|
||||
i += 1;
|
||||
count += 1;
|
||||
}
|
||||
count -= 1;
|
||||
ds.push(Neg {
|
||||
delta: delta,
|
||||
count: count,
|
||||
});
|
||||
base -= delta * count;
|
||||
} else {
|
||||
let mut count = 1;
|
||||
while i < ns.len() && ns[i] == base {
|
||||
i += 1;
|
||||
count += 1;
|
||||
}
|
||||
count -= 1;
|
||||
ds.push(Const { count: count });
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
ds
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
fn from_delta(ds: &[Delta]) -> Vec<u64> {
|
||||
let mut ns: Vec<u64> = Vec::new();
|
||||
let mut base = 0u64;
|
||||
|
||||
for d in ds {
|
||||
match d {
|
||||
Base { n } => {
|
||||
ns.push(*n);
|
||||
base = *n;
|
||||
}
|
||||
Const { count } => {
|
||||
for _ in 0..*count {
|
||||
ns.push(base);
|
||||
}
|
||||
}
|
||||
Pos { delta, count } => {
|
||||
for _ in 0..*count {
|
||||
base += delta;
|
||||
ns.push(base);
|
||||
}
|
||||
}
|
||||
Neg { delta, count } => {
|
||||
for _ in 0..*count {
|
||||
assert!(base >= *delta);
|
||||
base -= delta;
|
||||
ns.push(base);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
ns
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_to_delta() {
|
||||
struct TestCase(Vec<u64>, Vec<Delta>);
|
||||
|
||||
let cases = [
|
||||
TestCase(vec![], vec![]),
|
||||
TestCase(vec![1], vec![Base { n: 1 }]),
|
||||
TestCase(vec![1, 2], vec![Base { n: 1 }, Pos { delta: 1, count: 1 }]),
|
||||
TestCase(
|
||||
vec![1, 2, 3, 4],
|
||||
vec![Base { n: 1 }, Pos { delta: 1, count: 3 }],
|
||||
),
|
||||
TestCase(
|
||||
vec![2, 4, 6, 8],
|
||||
vec![Base { n: 2 }, Pos { delta: 2, count: 3 }],
|
||||
),
|
||||
TestCase(
|
||||
vec![7, 14, 21, 28],
|
||||
vec![Base { n: 7 }, Pos { delta: 7, count: 3 }],
|
||||
),
|
||||
TestCase(
|
||||
vec![10, 9],
|
||||
vec![Base { n: 10 }, Neg { delta: 1, count: 1 }],
|
||||
),
|
||||
TestCase(
|
||||
vec![10, 9, 8, 7],
|
||||
vec![Base { n: 10 }, Neg { delta: 1, count: 3 }],
|
||||
),
|
||||
TestCase(
|
||||
vec![10, 8, 6, 4],
|
||||
vec![Base { n: 10 }, Neg { delta: 2, count: 3 }],
|
||||
),
|
||||
TestCase(
|
||||
vec![28, 21, 14, 7],
|
||||
vec![Base { n: 28 }, Neg { delta: 7, count: 3 }],
|
||||
),
|
||||
TestCase(
|
||||
vec![42, 42, 42, 42],
|
||||
vec![Base { n: 42 }, Const { count: 3 }],
|
||||
),
|
||||
TestCase(
|
||||
vec![1, 2, 3, 10, 20, 30, 40, 38, 36, 34, 0, 0, 0, 0],
|
||||
vec![
|
||||
Base { n: 1 },
|
||||
Pos { delta: 1, count: 2 },
|
||||
Pos { delta: 7, count: 1 },
|
||||
Pos {
|
||||
delta: 10,
|
||||
count: 3,
|
||||
},
|
||||
Neg { delta: 2, count: 3 },
|
||||
Neg {
|
||||
delta: 34,
|
||||
count: 1,
|
||||
},
|
||||
Const { count: 3 },
|
||||
],
|
||||
),
|
||||
];
|
||||
|
||||
for t in &cases {
|
||||
assert_eq!(to_delta(&t.0), t.1);
|
||||
assert_eq!(from_delta(&t.1), t.0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//-------------------------------------------------
|
||||
6
src/pack/mod.rs
Normal file
6
src/pack/mod.rs
Normal file
@ -0,0 +1,6 @@
|
||||
pub mod pack;
|
||||
|
||||
mod node_encode;
|
||||
mod delta_list;
|
||||
mod vm;
|
||||
|
||||
127
src/pack/node_encode.rs
Normal file
127
src/pack/node_encode.rs
Normal file
@ -0,0 +1,127 @@
|
||||
use std::{io, io::Write};
|
||||
|
||||
use nom::{bytes::complete::*, number::complete::*, IResult};
|
||||
|
||||
use crate::pack::vm::*;
|
||||
|
||||
//-------------------------------------------
|
||||
|
||||
#[derive(Debug)]
|
||||
pub enum PackError {
|
||||
ParseError,
|
||||
IOError,
|
||||
}
|
||||
|
||||
impl std::error::Error for PackError {}
|
||||
|
||||
pub type PResult<T> = Result<T, PackError>;
|
||||
|
||||
fn nom_to_pr<T>(r: IResult<&[u8], T>) -> PResult<(&[u8], T)> {
|
||||
return match r {
|
||||
Ok(v) => Ok(v),
|
||||
Err(_) => Err(PackError::ParseError),
|
||||
};
|
||||
}
|
||||
|
||||
fn io_to_pr<T>(r: io::Result<T>) -> PResult<T> {
|
||||
return match r {
|
||||
Ok(v) => Ok(v),
|
||||
Err(_) => Err(PackError::IOError),
|
||||
};
|
||||
}
|
||||
|
||||
//-------------------------------------------
|
||||
|
||||
impl std::fmt::Display for PackError {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
|
||||
match self {
|
||||
PackError::ParseError => write!(f, "parse error"),
|
||||
PackError::IOError => write!(f, "IO error"),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn run64(i: &[u8], count: usize) -> IResult<&[u8], Vec<u64>> {
|
||||
let (i, ns) = nom::multi::many_m_n(count, count, le_u64)(i)?;
|
||||
Ok((i, ns))
|
||||
}
|
||||
|
||||
struct NodeSummary {
|
||||
is_leaf: bool,
|
||||
max_entries: usize,
|
||||
value_size: usize
|
||||
}
|
||||
|
||||
fn summarise_node(data: &[u8]) -> IResult<&[u8], NodeSummary> {
|
||||
let (i, _csum) = le_u32(data)?;
|
||||
let (i, flags) = le_u32(i)?;
|
||||
let (i, _blocknr) = le_u64(i)?;
|
||||
let (i, _nr_entries) = le_u32(i)?;
|
||||
let (i, max_entries) = le_u32(i)?;
|
||||
let (i, value_size) = le_u32(i)?;
|
||||
let (i, _padding) = le_u32(i)?;
|
||||
Ok((i, NodeSummary {
|
||||
is_leaf: flags == 2,
|
||||
max_entries: max_entries as usize,
|
||||
value_size: value_size as usize,
|
||||
}))
|
||||
}
|
||||
|
||||
pub fn pack_btree_node<W: Write>(w: &mut W, data: &[u8]) -> PResult<()> {
|
||||
let (_, info) = nom_to_pr(summarise_node(data))?;
|
||||
|
||||
if info.is_leaf {
|
||||
if info.value_size == std::mem::size_of::<u64>() {
|
||||
let (i, hdr) = nom_to_pr(take(32usize)(data))?;
|
||||
let (i, keys) = nom_to_pr(run64(i, info.max_entries))?;
|
||||
let (tail, values) = nom_to_pr(run64(i, info.max_entries))?;
|
||||
|
||||
io_to_pr(pack_literal(w, hdr))?;
|
||||
io_to_pr(pack_u64s(w, &keys))?;
|
||||
io_to_pr(pack_shifted_u64s(w, &values))?;
|
||||
if tail.len() > 0 {
|
||||
io_to_pr(pack_literal(w, tail))?;
|
||||
}
|
||||
|
||||
return Ok(());
|
||||
} else {
|
||||
// We don't bother packing the values if they aren't u64
|
||||
let (i, hdr) = nom_to_pr(take(32usize)(data))?;
|
||||
let (tail, keys) = nom_to_pr(run64(i, info.max_entries))?;
|
||||
|
||||
io_to_pr(pack_literal(w, hdr))?;
|
||||
io_to_pr(pack_u64s(w, &keys))?;
|
||||
io_to_pr(pack_literal(w, tail))?;
|
||||
|
||||
return Ok(());
|
||||
}
|
||||
} else {
|
||||
// Internal node, values are also u64s
|
||||
let (i, hdr) = nom_to_pr(take(32usize)(data))?;
|
||||
let (i, keys) = nom_to_pr(run64(i, info.max_entries))?;
|
||||
let (tail, values) = nom_to_pr(run64(i, info.max_entries))?;
|
||||
|
||||
io_to_pr(pack_literal(w, hdr))?;
|
||||
io_to_pr(pack_u64s(w, &keys))?;
|
||||
io_to_pr(pack_u64s(w, &values))?;
|
||||
if tail.len() > 0 {
|
||||
io_to_pr(pack_literal(w, tail))?;
|
||||
}
|
||||
|
||||
return Ok(());
|
||||
}
|
||||
}
|
||||
|
||||
pub fn pack_superblock<W: Write>(w: &mut W, bytes: &[u8]) -> PResult<()> {
|
||||
io_to_pr(pack_literal(w, bytes))
|
||||
}
|
||||
|
||||
pub fn pack_bitmap<W: Write>(w: &mut W, bytes: &[u8]) -> PResult<()> {
|
||||
io_to_pr(pack_literal(w, bytes))
|
||||
}
|
||||
|
||||
pub fn pack_index<W: Write>(w: &mut W, bytes: &[u8]) -> PResult<()> {
|
||||
io_to_pr(pack_literal(w, bytes))
|
||||
}
|
||||
|
||||
//-------------------------------------
|
||||
364
src/pack/pack.rs
Normal file
364
src/pack/pack.rs
Normal file
@ -0,0 +1,364 @@
|
||||
use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
|
||||
|
||||
use flate2::{read::ZlibDecoder, write::ZlibEncoder, Compression};
|
||||
|
||||
use std::os::unix::fs::OpenOptionsExt;
|
||||
use std::{
|
||||
error::Error,
|
||||
fs::OpenOptions,
|
||||
io,
|
||||
io::prelude::*,
|
||||
io::Cursor,
|
||||
io::Write,
|
||||
ops::DerefMut,
|
||||
sync::{Arc, Mutex},
|
||||
thread::spawn,
|
||||
};
|
||||
|
||||
use rand::prelude::*;
|
||||
use std::sync::mpsc::{sync_channel, Receiver};
|
||||
|
||||
use crate::pack::node_encode::*;
|
||||
|
||||
const BLOCK_SIZE: u64 = 4096;
|
||||
const MAGIC: u64 = 0xa537a0aa6309ef77;
|
||||
const PACK_VERSION: u64 = 3;
|
||||
const SUPERBLOCK_CSUM_XOR: u32 = 160774;
|
||||
const BITMAP_CSUM_XOR: u32 = 240779;
|
||||
const INDEX_CSUM_XOR: u32 = 160478;
|
||||
const BTREE_CSUM_XOR: u32 = 121107;
|
||||
|
||||
fn shuffle<T>(v: &mut Vec<T>) {
|
||||
let mut rng = rand::thread_rng();
|
||||
v.shuffle(&mut rng);
|
||||
}
|
||||
|
||||
// FIXME: move to a utils module
|
||||
fn div_up(n: u64, d: u64) -> u64 {
|
||||
(n + d - 1) / d
|
||||
}
|
||||
|
||||
// Each thread processes multiple contiguous runs of blocks, called
|
||||
// chunks. Chunks are shuffled so each thread gets chunks spread
|
||||
// across the dev in case there are large regions that don't contain
|
||||
// metadata.
|
||||
fn mk_chunk_vecs(nr_blocks: u64, nr_jobs: u64) -> Vec<Vec<(u64, u64)>> {
|
||||
use std::cmp::{max, min};
|
||||
|
||||
let chunk_size = min(4 * 1024u64, max(128u64, nr_blocks / (nr_jobs * 64)));
|
||||
let nr_chunks = div_up(nr_blocks, chunk_size);
|
||||
let mut chunks = Vec::with_capacity(nr_chunks as usize);
|
||||
for i in 0..nr_chunks {
|
||||
chunks.push((i * chunk_size, (i + 1) * chunk_size));
|
||||
}
|
||||
|
||||
shuffle(&mut chunks);
|
||||
|
||||
let mut vs = Vec::with_capacity(nr_jobs as usize);
|
||||
for _ in 0..nr_jobs {
|
||||
vs.push(Vec::new());
|
||||
}
|
||||
|
||||
for c in 0..nr_chunks {
|
||||
vs[(c % nr_jobs) as usize].push(chunks[c as usize]);
|
||||
}
|
||||
|
||||
vs
|
||||
}
|
||||
|
||||
pub fn pack(input_file: &str, output_file: &str) -> Result<(), Box<dyn Error>> {
|
||||
let nr_blocks = get_nr_blocks(&input_file)?;
|
||||
let nr_jobs = std::cmp::max(1, std::cmp::min(num_cpus::get() as u64, nr_blocks / 128));
|
||||
let chunk_vecs = mk_chunk_vecs(nr_blocks, nr_jobs);
|
||||
|
||||
let input = OpenOptions::new()
|
||||
.read(true)
|
||||
.write(false)
|
||||
.custom_flags(libc::O_EXCL)
|
||||
.open(input_file)?;
|
||||
|
||||
let output = OpenOptions::new()
|
||||
.read(false)
|
||||
.write(true)
|
||||
.create(true)
|
||||
.truncate(true)
|
||||
.open(output_file)?;
|
||||
|
||||
write_header(&output, nr_blocks)?;
|
||||
|
||||
let sync_input = Arc::new(Mutex::new(input));
|
||||
let sync_output = Arc::new(Mutex::new(output));
|
||||
|
||||
let mut threads = Vec::new();
|
||||
for job in 0..nr_jobs {
|
||||
let sync_input = Arc::clone(&sync_input);
|
||||
let sync_output = Arc::clone(&sync_output);
|
||||
let chunks = chunk_vecs[job as usize].clone();
|
||||
threads.push(spawn(move || crunch(sync_input, sync_output, chunks)));
|
||||
}
|
||||
|
||||
for t in threads {
|
||||
t.join().unwrap()?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn crunch<R, W>(
|
||||
input: Arc<Mutex<R>>,
|
||||
output: Arc<Mutex<W>>,
|
||||
ranges: Vec<(u64, u64)>,
|
||||
) -> io::Result<()>
|
||||
where
|
||||
R: Read + Seek,
|
||||
W: Write,
|
||||
{
|
||||
let mut written = 0u64;
|
||||
let mut z = ZlibEncoder::new(Vec::new(), Compression::default());
|
||||
for (lo, hi) in ranges {
|
||||
// We read multiple blocks at once to reduce contention
|
||||
// on input.
|
||||
let mut input = input.lock().unwrap();
|
||||
let big_data = read_blocks(input.deref_mut(), lo, hi - lo)?;
|
||||
drop(input);
|
||||
|
||||
for b in lo..hi {
|
||||
let block_start = ((b - lo) * BLOCK_SIZE) as usize;
|
||||
let data = &big_data[block_start..(block_start + BLOCK_SIZE as usize)];
|
||||
let kind = metadata_block_type(data);
|
||||
if kind != BT::UNKNOWN {
|
||||
z.write_u64::<LittleEndian>(b)?;
|
||||
pack_block(&mut z, kind, &data);
|
||||
|
||||
written += 1;
|
||||
if written == 1024 {
|
||||
let compressed = z.reset(Vec::new())?;
|
||||
|
||||
let mut output = output.lock().unwrap();
|
||||
output.write_u64::<LittleEndian>(compressed.len() as u64)?;
|
||||
output.write_all(&compressed)?;
|
||||
written = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if written > 0 {
|
||||
let compressed = z.finish()?;
|
||||
let mut output = output.lock().unwrap();
|
||||
output.write_u64::<LittleEndian>(compressed.len() as u64)?;
|
||||
output.write_all(&compressed)?;
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn write_header<W>(mut w: W, nr_blocks: u64) -> io::Result<()>
|
||||
where
|
||||
W: byteorder::WriteBytesExt,
|
||||
{
|
||||
w.write_u64::<LittleEndian>(MAGIC)?;
|
||||
w.write_u64::<LittleEndian>(PACK_VERSION)?;
|
||||
w.write_u64::<LittleEndian>(4096)?;
|
||||
w.write_u64::<LittleEndian>(nr_blocks)?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn read_header<R>(mut r: R) -> io::Result<u64>
|
||||
where
|
||||
R: byteorder::ReadBytesExt,
|
||||
{
|
||||
use std::process::exit;
|
||||
|
||||
let magic = r.read_u64::<LittleEndian>()?;
|
||||
if magic != MAGIC {
|
||||
eprintln!("Not a pack file.");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
let version = r.read_u64::<LittleEndian>()?;
|
||||
if version != PACK_VERSION {
|
||||
eprintln!("unsupported pack file version ({}).", PACK_VERSION);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
let block_size = r.read_u64::<LittleEndian>()?;
|
||||
if block_size != BLOCK_SIZE {
|
||||
eprintln!("block size is not {}", BLOCK_SIZE);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
r.read_u64::<LittleEndian>()
|
||||
}
|
||||
|
||||
fn get_nr_blocks(path: &str) -> io::Result<u64> {
|
||||
let metadata = std::fs::metadata(path)?;
|
||||
Ok(metadata.len() / (BLOCK_SIZE as u64))
|
||||
}
|
||||
|
||||
fn read_blocks<R>(rdr: &mut R, b: u64, count: u64) -> io::Result<Vec<u8>>
|
||||
where
|
||||
R: io::Read + io::Seek,
|
||||
{
|
||||
let mut buf: Vec<u8> = vec![0; (BLOCK_SIZE * count) as usize];
|
||||
|
||||
rdr.seek(io::SeekFrom::Start(b * BLOCK_SIZE))?;
|
||||
rdr.read_exact(&mut buf)?;
|
||||
|
||||
Ok(buf)
|
||||
}
|
||||
|
||||
fn checksum(buf: &[u8]) -> u32 {
|
||||
crc32c::crc32c(&buf[4..]) ^ 0xffffffff
|
||||
}
|
||||
|
||||
#[derive(PartialEq)]
|
||||
enum BT {
|
||||
SUPERBLOCK,
|
||||
BTREE,
|
||||
INDEX,
|
||||
BITMAP,
|
||||
UNKNOWN,
|
||||
}
|
||||
|
||||
fn metadata_block_type(buf: &[u8]) -> BT {
|
||||
if buf.len() != BLOCK_SIZE as usize {
|
||||
return BT::UNKNOWN;
|
||||
}
|
||||
|
||||
// The checksum is always stored in the first u32 of the buffer.
|
||||
let mut rdr = Cursor::new(buf);
|
||||
let sum_on_disk = rdr.read_u32::<LittleEndian>().unwrap();
|
||||
let csum = checksum(buf);
|
||||
let btype = csum ^ sum_on_disk;
|
||||
|
||||
match btype {
|
||||
SUPERBLOCK_CSUM_XOR => return BT::SUPERBLOCK,
|
||||
BTREE_CSUM_XOR => return BT::BTREE,
|
||||
BITMAP_CSUM_XOR => return BT::BITMAP,
|
||||
INDEX_CSUM_XOR => return BT::INDEX,
|
||||
_ => {
|
||||
return BT::UNKNOWN;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn check<T>(r: &PResult<T>) {
|
||||
match r {
|
||||
Ok(_) => {
|
||||
return;
|
||||
}
|
||||
Err(PackError::ParseError) => panic!("parse error"),
|
||||
Err(PackError::IOError) => panic!("io error"),
|
||||
}
|
||||
}
|
||||
|
||||
fn pack_block<W: Write>(w: &mut W, kind: BT, buf: &[u8]) {
|
||||
match kind {
|
||||
BT::SUPERBLOCK => check(&pack_superblock(w, buf)),
|
||||
BT::BTREE => check(&pack_btree_node(w, buf)),
|
||||
BT::INDEX => check(&pack_index(w, buf)),
|
||||
BT::BITMAP => check(&pack_bitmap(w, buf)),
|
||||
BT::UNKNOWN => {
|
||||
assert!(false);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn write_zero_block<W>(w: &mut W, b: u64) -> io::Result<()>
|
||||
where
|
||||
W: Write + Seek,
|
||||
{
|
||||
let zeroes: Vec<u8> = vec![0; BLOCK_SIZE as usize];
|
||||
w.seek(io::SeekFrom::Start(b * BLOCK_SIZE))?;
|
||||
w.write_all(&zeroes)?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn write_blocks<W>(w: &Arc<Mutex<W>>, blocks: &mut Vec<(u64, Vec<u8>)>) -> io::Result<()>
|
||||
where
|
||||
W: Write + Seek,
|
||||
{
|
||||
let mut w = w.lock().unwrap();
|
||||
while let Some((b, block)) = blocks.pop() {
|
||||
w.seek(io::SeekFrom::Start(b * BLOCK_SIZE))?;
|
||||
w.write_all(&block[0..])?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn decode_worker<W>(rx: Receiver<Vec<u8>>, w: Arc<Mutex<W>>) -> io::Result<()>
|
||||
where
|
||||
W: Write + Seek,
|
||||
{
|
||||
let mut blocks = Vec::new();
|
||||
|
||||
while let Ok(bytes) = rx.recv() {
|
||||
let mut z = ZlibDecoder::new(&bytes[0..]);
|
||||
|
||||
while let Ok(b) = z.read_u64::<LittleEndian>() {
|
||||
let block = crate::pack::vm::unpack(&mut z, BLOCK_SIZE as usize).unwrap();
|
||||
assert!(metadata_block_type(&block[0..]) != BT::UNKNOWN);
|
||||
blocks.push((b, block));
|
||||
|
||||
if blocks.len() >= 32 {
|
||||
write_blocks(&w, &mut blocks)?;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
write_blocks(&w, &mut blocks)?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub fn unpack(input_file: &str, output_file: &str) -> Result<(), Box<dyn Error>> {
|
||||
let mut input = OpenOptions::new()
|
||||
.read(true)
|
||||
.write(false)
|
||||
.open(input_file)?;
|
||||
|
||||
let mut output = OpenOptions::new()
|
||||
.read(false)
|
||||
.write(true)
|
||||
.create(true)
|
||||
.truncate(true)
|
||||
.open(output_file)?;
|
||||
|
||||
let nr_blocks = read_header(&input)?;
|
||||
|
||||
// zero the last block to size the file
|
||||
write_zero_block(&mut output, nr_blocks - 1)?;
|
||||
|
||||
// Run until we hit the end
|
||||
let output = Arc::new(Mutex::new(output));
|
||||
|
||||
// kick off the workers
|
||||
let nr_jobs = num_cpus::get();
|
||||
let mut senders = Vec::new();
|
||||
let mut threads = Vec::new();
|
||||
|
||||
for _ in 0..nr_jobs {
|
||||
let (tx, rx) = sync_channel(1);
|
||||
let output = Arc::clone(&output);
|
||||
senders.push(tx);
|
||||
threads.push(spawn(move || decode_worker(rx, output)));
|
||||
}
|
||||
|
||||
// Read z compressed chunk, and hand to worker thread.
|
||||
let mut next_worker = 0;
|
||||
while let Ok(len) = input.read_u64::<LittleEndian>() {
|
||||
let mut bytes = vec![0; len as usize];
|
||||
input.read_exact(&mut bytes)?;
|
||||
senders[next_worker].send(bytes).unwrap();
|
||||
next_worker = (next_worker + 1) % nr_jobs;
|
||||
}
|
||||
|
||||
for s in senders {
|
||||
drop(s);
|
||||
}
|
||||
|
||||
for t in threads {
|
||||
t.join().unwrap()?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
490
src/pack/vm.rs
Normal file
490
src/pack/vm.rs
Normal file
@ -0,0 +1,490 @@
|
||||
use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
|
||||
use std::io;
|
||||
use std::io::{Cursor, Read, Write};
|
||||
|
||||
use num_derive::FromPrimitive;
|
||||
use num_traits::FromPrimitive;
|
||||
|
||||
use crate::pack::delta_list::*;
|
||||
|
||||
//-------------------------------------------------
|
||||
|
||||
// Deltas are converted to instructions. A delta may not fit
|
||||
// into a single instruction.
|
||||
#[derive(Debug, FromPrimitive)]
|
||||
enum Tag {
|
||||
Set, // Operand width given in nibble
|
||||
|
||||
Pos, // Delta in nibble
|
||||
PosW, // Delta in operand, whose width is in nibble
|
||||
|
||||
Neg, // Delta in nibble
|
||||
NegW, // Delta in operand, whose width is in nibble
|
||||
|
||||
Const, // Count in nibble
|
||||
Const8, // count = (nibble << 8) | byte
|
||||
|
||||
// Controls how many times the next instruction is applied.
|
||||
// Not applicable to Const instructions which hold their own count.
|
||||
Count, // count stored in nibble
|
||||
Count8, // count = (nibble << 8) | byte
|
||||
|
||||
Lit, // len in nibble
|
||||
LitW,
|
||||
|
||||
ShiftedRun,
|
||||
}
|
||||
|
||||
fn pack_tag<W: Write>(w: &mut W, t: Tag, nibble: u8) -> io::Result<()> {
|
||||
assert!(nibble < 16);
|
||||
let mut b: u8 = t as u8;
|
||||
assert!(b < 16);
|
||||
b = (b << 4) | nibble;
|
||||
w.write_u8(b)
|
||||
}
|
||||
|
||||
fn pack_count<W>(w: &mut W, count: u64) -> io::Result<()>
|
||||
where
|
||||
W: Write,
|
||||
{
|
||||
if count == 1u64 {
|
||||
return Ok(());
|
||||
} else if count < 16 {
|
||||
return pack_tag(w, Tag::Count, count as u8);
|
||||
} else {
|
||||
assert!(count < 4096);
|
||||
let nibble = count >> 8;
|
||||
assert!(nibble < 16);
|
||||
let byte = count & 0xff;
|
||||
pack_tag(w, Tag::Count8, nibble as u8)?;
|
||||
return w.write_u8(byte as u8);
|
||||
}
|
||||
}
|
||||
|
||||
fn pack_delta<W: Write>(w: &mut W, d: &Delta) -> io::Result<()> {
|
||||
use Tag::*;
|
||||
|
||||
match d {
|
||||
Delta::Base { n } => {
|
||||
if *n <= std::u8::MAX as u64 {
|
||||
pack_tag(w, Set, 1)?;
|
||||
return w.write_u8(*n as u8);
|
||||
} else if *n <= std::u16::MAX as u64 {
|
||||
pack_tag(w, Set, 2)?;
|
||||
return w.write_u16::<LittleEndian>(*n as u16);
|
||||
} else if *n <= u32::MAX as u64 {
|
||||
pack_tag(w, Set, 4)?;
|
||||
return w.write_u32::<LittleEndian>(*n as u32);
|
||||
} else {
|
||||
pack_tag(w, Set, 8)?;
|
||||
return w.write_u64::<LittleEndian>(*n);
|
||||
}
|
||||
}
|
||||
Delta::Pos { delta, count } => {
|
||||
pack_count(w, *count)?;
|
||||
if *delta < 16 {
|
||||
return pack_tag(w, Tag::Pos, *delta as u8);
|
||||
} else if *delta <= u8::MAX as u64 {
|
||||
pack_tag(w, PosW, 1)?;
|
||||
return w.write_u8(*delta as u8);
|
||||
} else if *delta <= u16::MAX as u64 {
|
||||
pack_tag(w, PosW, 2)?;
|
||||
return w.write_u16::<LittleEndian>(*delta as u16);
|
||||
} else if *delta <= u32::MAX as u64 {
|
||||
pack_tag(w, PosW, 4)?;
|
||||
return w.write_u32::<LittleEndian>(*delta as u32);
|
||||
} else {
|
||||
pack_tag(w, PosW, 8)?;
|
||||
return w.write_u64::<LittleEndian>(*delta as u64);
|
||||
}
|
||||
}
|
||||
Delta::Neg { delta, count } => {
|
||||
pack_count(w, *count)?;
|
||||
|
||||
if *delta < 16 {
|
||||
return pack_tag(w, Neg, *delta as u8);
|
||||
} else if *delta <= u8::MAX as u64 {
|
||||
pack_tag(w, NegW, 1)?;
|
||||
return w.write_u8(*delta as u8);
|
||||
} else if *delta <= u16::MAX as u64 {
|
||||
pack_tag(w, NegW, 2)?;
|
||||
return w.write_u16::<LittleEndian>(*delta as u16);
|
||||
} else if *delta <= u32::MAX as u64 {
|
||||
pack_tag(w, NegW, 4)?;
|
||||
return w.write_u32::<LittleEndian>(*delta as u32);
|
||||
} else {
|
||||
pack_tag(w, NegW, 8)?;
|
||||
return w.write_u64::<LittleEndian>(*delta as u64);
|
||||
}
|
||||
}
|
||||
Delta::Const { count } => {
|
||||
if *count < 16 {
|
||||
return pack_tag(w, Tag::Const, *count as u8);
|
||||
} else {
|
||||
assert!(*count < 4096);
|
||||
let nibble = *count >> 8;
|
||||
assert!(nibble < 16);
|
||||
pack_tag(w, Tag::Const8, nibble as u8)?;
|
||||
return w.write_u8((*count & 0xff) as u8);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn pack_deltas<W: Write>(w: &mut W, ds: &[Delta]) -> io::Result<()> {
|
||||
for d in ds {
|
||||
pack_delta(w, d)?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
//-------------------------------------------------
|
||||
|
||||
pub fn pack_u64s<W: Write>(w: &mut W, ns: &[u64]) -> io::Result<()> {
|
||||
let ds = to_delta(ns);
|
||||
pack_deltas(w, &ds[0..])
|
||||
}
|
||||
|
||||
fn unshift_nrs(shift: usize, ns: &[u64]) -> (Vec<u64>, Vec<u64>) {
|
||||
let mut values = Vec::new();
|
||||
let mut shifts = Vec::new();
|
||||
|
||||
let mask = (1 << shift) - 1;
|
||||
for n in ns {
|
||||
values.push(n >> shift);
|
||||
shifts.push(n & mask);
|
||||
}
|
||||
|
||||
(values, shifts)
|
||||
}
|
||||
|
||||
pub fn pack_shifted_u64s<W: Write>(w: &mut W, ns: &[u64]) -> io::Result<()> {
|
||||
let len = ns.len();
|
||||
let nibble = len >> 8;
|
||||
assert!(nibble < 16);
|
||||
pack_tag(w, Tag::ShiftedRun, nibble as u8)?;
|
||||
w.write_u8((len & 0xff) as u8)?;
|
||||
let (high, low) = unshift_nrs(24, ns);
|
||||
pack_u64s(w, &high[0..])?;
|
||||
pack_u64s(w, &low[0..])
|
||||
}
|
||||
|
||||
pub fn pack_literal<W: Write>(w: &mut W, bs: &[u8]) -> io::Result<()> {
|
||||
use Tag::LitW;
|
||||
|
||||
let len = bs.len() as u64;
|
||||
if len < 16 as u64 {
|
||||
pack_tag(w, Tag::Lit, len as u8)?;
|
||||
} else if len <= u8::MAX as u64 {
|
||||
pack_tag(w, LitW, 1)?;
|
||||
w.write_u8(len as u8)?;
|
||||
} else if len <= u16::MAX as u64 {
|
||||
pack_tag(w, LitW, 2)?;
|
||||
w.write_u16::<LittleEndian>(len as u16)?;
|
||||
} else if len <= u32::MAX as u64 {
|
||||
pack_tag(w, LitW, 4)?;
|
||||
w.write_u32::<LittleEndian>(len as u32)?;
|
||||
} else {
|
||||
pack_tag(w, LitW, 8)?;
|
||||
w.write_u64::<LittleEndian>(len as u64)?;
|
||||
}
|
||||
w.write_all(bs)
|
||||
}
|
||||
|
||||
//-------------------------------------------------
|
||||
|
||||
fn unpack_with_width<R: Read>(r: &mut R, nibble: u8) -> io::Result<u64> {
|
||||
let v = match nibble {
|
||||
1 => r.read_u8()? as u64,
|
||||
2 => r.read_u16::<LittleEndian>()? as u64,
|
||||
4 => r.read_u32::<LittleEndian>()? as u64,
|
||||
8 => r.read_u64::<LittleEndian>()? as u64,
|
||||
_ => {
|
||||
panic!("SET with bad width");
|
||||
}
|
||||
};
|
||||
Ok(v)
|
||||
}
|
||||
|
||||
fn unpack_u64s<R: Read>(r: &mut R, count: usize) -> io::Result<Vec<u64>> {
|
||||
let mut v = Vec::new();
|
||||
for _ in 0..count {
|
||||
let n = r.read_u64::<LittleEndian>()?;
|
||||
v.push(n);
|
||||
}
|
||||
Ok(v)
|
||||
}
|
||||
|
||||
struct VM {
|
||||
base: u64,
|
||||
bytes_written: usize,
|
||||
}
|
||||
|
||||
impl VM {
|
||||
fn new() -> VM {
|
||||
VM {
|
||||
base: 0,
|
||||
bytes_written: 0,
|
||||
}
|
||||
}
|
||||
|
||||
fn emit_u64<W: Write>(&mut self, w: &mut W, n: u64) -> io::Result<()> {
|
||||
w.write_u64::<LittleEndian>(n)?;
|
||||
self.bytes_written += 8;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn emit_base<W: Write>(&mut self, w: &mut W) -> io::Result<()> {
|
||||
self.emit_u64(w, self.base)
|
||||
}
|
||||
|
||||
fn emit_bytes<W: Write>(&mut self, w: &mut W, bytes: &[u8]) -> io::Result<()> {
|
||||
let len = bytes.len();
|
||||
w.write_all(bytes)?;
|
||||
self.bytes_written += len;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn unpack_instr<R: Read, W: Write>(
|
||||
&mut self,
|
||||
r: &mut R,
|
||||
w: &mut W,
|
||||
count: usize,
|
||||
) -> io::Result<()> {
|
||||
use Tag::*;
|
||||
|
||||
let b = r.read_u8()?;
|
||||
let kind: Tag = match Tag::from_u8(b >> 4) {
|
||||
Some(k) => k,
|
||||
None => {
|
||||
panic!("bad tag");
|
||||
}
|
||||
};
|
||||
let nibble = b & 0xf;
|
||||
|
||||
match kind {
|
||||
Set => {
|
||||
self.base = unpack_with_width(r, nibble)?;
|
||||
for _ in 0..count {
|
||||
self.emit_base(w)?;
|
||||
}
|
||||
}
|
||||
Pos => {
|
||||
for _ in 0..count {
|
||||
self.base += nibble as u64;
|
||||
self.emit_base(w)?;
|
||||
}
|
||||
}
|
||||
PosW => {
|
||||
let delta = unpack_with_width(r, nibble)?;
|
||||
for _ in 0..count {
|
||||
self.base += delta;
|
||||
self.emit_base(w)?;
|
||||
}
|
||||
}
|
||||
Neg => {
|
||||
for _ in 0..count {
|
||||
self.base -= nibble as u64;
|
||||
self.emit_base(w)?;
|
||||
}
|
||||
}
|
||||
NegW => {
|
||||
let delta = unpack_with_width(r, nibble)?;
|
||||
for _ in 0..count {
|
||||
self.base -= delta;
|
||||
self.emit_base(w)?;
|
||||
}
|
||||
}
|
||||
Const => {
|
||||
assert_eq!(count, 1);
|
||||
for _ in 0..nibble as usize {
|
||||
self.emit_base(w)?;
|
||||
}
|
||||
}
|
||||
Const8 => {
|
||||
assert_eq!(count, 1);
|
||||
let count = ((nibble as usize) << 8) | (r.read_u8()? as usize);
|
||||
for _ in 0..count {
|
||||
self.emit_base(w)?;
|
||||
}
|
||||
}
|
||||
Count => {
|
||||
self.unpack_instr(r, w, nibble as usize)?;
|
||||
}
|
||||
Count8 => {
|
||||
let count = ((nibble as usize) << 8) | (r.read_u8()? as usize);
|
||||
self.unpack_instr(r, w, count as usize)?;
|
||||
}
|
||||
Lit => {
|
||||
assert_eq!(count, 1);
|
||||
let len = nibble as usize;
|
||||
let mut bytes = vec![0; len];
|
||||
r.read_exact(&mut bytes[0..])?;
|
||||
self.emit_bytes(w, &bytes)?;
|
||||
}
|
||||
LitW => {
|
||||
assert_eq!(count, 1);
|
||||
let len = unpack_with_width(r, nibble)? as usize;
|
||||
let mut bytes = vec![0; len];
|
||||
r.read_exact(&mut bytes[0..])?;
|
||||
self.emit_bytes(w, &bytes)?;
|
||||
}
|
||||
ShiftedRun => {
|
||||
// FIXME: repeated unpack, pack, unpack
|
||||
let len = ((nibble as usize) << 8) | (r.read_u8()? as usize);
|
||||
let nr_bytes = (len as usize) * std::mem::size_of::<u64>() as usize;
|
||||
|
||||
let mut high_bytes: Vec<u8> = Vec::with_capacity(nr_bytes);
|
||||
let written = self.exec(r, &mut high_bytes, nr_bytes)?;
|
||||
self.bytes_written -= written; // hack
|
||||
let mut high_r = Cursor::new(high_bytes);
|
||||
let high = unpack_u64s(&mut high_r, len)?;
|
||||
|
||||
let mut low_bytes: Vec<u8> = Vec::with_capacity(nr_bytes);
|
||||
let written = self.exec(r, &mut low_bytes, nr_bytes)?;
|
||||
self.bytes_written -= written; // hack
|
||||
let mut low_r = Cursor::new(low_bytes);
|
||||
let low = unpack_u64s(&mut low_r, len)?;
|
||||
|
||||
let mask = (1 << 24) - 1;
|
||||
for i in 0..len {
|
||||
self.emit_u64(w, (high[i] << 24) | (low[i] & mask))?;
|
||||
}
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
// Runs until at least a number of bytes have been emitted. Returns nr emitted.
|
||||
fn exec<R: Read, W: Write>(
|
||||
&mut self,
|
||||
r: &mut R,
|
||||
w: &mut W,
|
||||
emit_bytes: usize,
|
||||
) -> io::Result<usize> {
|
||||
let begin = self.bytes_written;
|
||||
while (self.bytes_written - begin) < emit_bytes {
|
||||
self.unpack_instr(r, w, 1)?;
|
||||
}
|
||||
Ok(self.bytes_written - begin)
|
||||
}
|
||||
}
|
||||
|
||||
pub fn unpack<R: Read>(r: &mut R, count: usize) -> io::Result<Vec<u8>> {
|
||||
let mut w = Vec::with_capacity(4096);
|
||||
let mut cursor = Cursor::new(&mut w);
|
||||
|
||||
let mut vm = VM::new();
|
||||
let written = vm.exec(r, &mut cursor, count)?;
|
||||
|
||||
assert_eq!(w.len(), count);
|
||||
assert_eq!(written, count);
|
||||
Ok(w)
|
||||
}
|
||||
|
||||
//-------------------------------------------------
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn test_pack_literals() {
|
||||
struct TestCase(Vec<u8>);
|
||||
|
||||
let cases = [
|
||||
// This is a bad test case, because unpack will not exec
|
||||
// any instructions.
|
||||
TestCase(b"".to_vec()),
|
||||
TestCase(b"foo".to_vec()),
|
||||
TestCase(vec![42; 15]),
|
||||
TestCase(vec![42; 256]),
|
||||
TestCase(vec![42; 4096]),
|
||||
];
|
||||
|
||||
for t in &cases {
|
||||
let mut bs = Vec::with_capacity(4096);
|
||||
|
||||
let mut w = Cursor::new(&mut bs);
|
||||
pack_literal(&mut w, &t.0[0..]).unwrap();
|
||||
|
||||
let mut r = Cursor::new(&mut bs);
|
||||
let unpacked = unpack(&mut r, t.0.len()).unwrap();
|
||||
|
||||
assert_eq!(&t.0[0..], &unpacked[0..]);
|
||||
}
|
||||
}
|
||||
|
||||
fn check_u64s_match(ns: &Vec<u64>, bytes: &[u8]) -> bool {
|
||||
let mut packed = Vec::with_capacity(ns.len() * 8);
|
||||
let mut w = Cursor::new(&mut packed);
|
||||
for n in ns {
|
||||
w.write_u64::<LittleEndian>(*n).unwrap();
|
||||
}
|
||||
packed == bytes
|
||||
}
|
||||
|
||||
fn check_pack_u64s(ns: &Vec<u64>) -> bool {
|
||||
println!("packing {:?}", &ns);
|
||||
let mut bs = Vec::with_capacity(4096);
|
||||
|
||||
let mut w = Cursor::new(&mut bs);
|
||||
pack_u64s(&mut w, &ns[0..]).unwrap();
|
||||
println!("unpacked len = {}, packed len = {}", ns.len() * 8, bs.len());
|
||||
|
||||
let mut r = Cursor::new(&mut bs);
|
||||
let unpacked = unpack(&mut r, ns.len() * 8).unwrap();
|
||||
|
||||
check_u64s_match(&ns, &unpacked[0..])
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pack_u64s() {
|
||||
let cases = [
|
||||
vec![0],
|
||||
vec![1, 5, 9, 10],
|
||||
b"the quick brown fox jumps over the lazy dog"
|
||||
.iter()
|
||||
.map(|b| *b as u64)
|
||||
.collect(),
|
||||
];
|
||||
|
||||
for t in &cases {
|
||||
assert!(check_pack_u64s(&t));
|
||||
}
|
||||
}
|
||||
|
||||
#[quickcheck]
|
||||
fn prop_pack_u64s(mut ns: Vec<u64>) -> bool {
|
||||
ns.push(42); // We don't handle empty vecs
|
||||
check_pack_u64s(&ns)
|
||||
}
|
||||
|
||||
fn check_pack_shifted_u64s(ns: &Vec<(u64, u64)>) -> bool {
|
||||
let shifted: Vec<u64> = ns
|
||||
.iter()
|
||||
.map(|(h, l)| (h << 24) | (l & ((1 << 24) - 1)))
|
||||
.collect();
|
||||
|
||||
println!("packing {:?}", &ns);
|
||||
let mut bs = Vec::with_capacity(4096);
|
||||
|
||||
let mut w = Cursor::new(&mut bs);
|
||||
pack_shifted_u64s(&mut w, &shifted[0..]).unwrap();
|
||||
println!("unpacked len = {}, packed len = {}", ns.len() * 8, bs.len());
|
||||
|
||||
let mut r = Cursor::new(&mut bs);
|
||||
let unpacked = unpack(&mut r, ns.len() * 8).unwrap();
|
||||
|
||||
check_u64s_match(&shifted, &unpacked[0..])
|
||||
}
|
||||
|
||||
#[quickcheck]
|
||||
fn prop_pack_shifted_u64s(mut ns: Vec<(u64, u64)>) -> bool {
|
||||
ns.push((42, 42));
|
||||
check_pack_shifted_u64s(&ns)
|
||||
}
|
||||
}
|
||||
|
||||
//-------------------------------------------------
|
||||
2
src/version.rs.in
Normal file
2
src/version.rs.in
Normal file
@ -0,0 +1,2 @@
|
||||
pub const TOOLS_VERSION: &str = @THIN_PROVISIONING_TOOLS_VERSION@;
|
||||
|
||||
@ -12,8 +12,6 @@ thin_provisioning::register_thin_commands(base::application &app)
|
||||
app.add_cmd(command::ptr(new thin_delta_cmd()));
|
||||
app.add_cmd(command::ptr(new thin_dump_cmd()));
|
||||
app.add_cmd(command::ptr(new thin_ls_cmd()));
|
||||
app.add_cmd(command::ptr(new thin_metadata_pack_cmd()));
|
||||
app.add_cmd(command::ptr(new thin_metadata_unpack_cmd()));
|
||||
app.add_cmd(command::ptr(new thin_metadata_size_cmd()));
|
||||
app.add_cmd(command::ptr(new thin_restore_cmd()));
|
||||
app.add_cmd(command::ptr(new thin_repair_cmd()));
|
||||
|
||||
@ -71,22 +71,6 @@ namespace thin_provisioning {
|
||||
virtual int run(int argc, char **argv);
|
||||
};
|
||||
|
||||
class thin_metadata_pack_cmd : public base::command {
|
||||
public:
|
||||
thin_metadata_pack_cmd();
|
||||
|
||||
virtual void usage(std::ostream &out) const override;
|
||||
virtual int run(int argc, char **argv) override;
|
||||
};
|
||||
|
||||
class thin_metadata_unpack_cmd : public base::command {
|
||||
public:
|
||||
thin_metadata_unpack_cmd();
|
||||
|
||||
virtual void usage(std::ostream &out) const override;
|
||||
virtual int run(int argc, char **argv) override;
|
||||
};
|
||||
|
||||
#ifdef DEV_TOOLS
|
||||
class thin_ll_dump_cmd : public base::command {
|
||||
public:
|
||||
|
||||
@ -19,22 +19,11 @@
|
||||
#include "base/output_file_requirements.h"
|
||||
#include "persistent-data/file_utils.h"
|
||||
#include "thin-provisioning/commands.h"
|
||||
#include "thin-provisioning/emitter.h"
|
||||
#include "thin-provisioning/human_readable_format.h"
|
||||
#include "thin-provisioning/metadata.h"
|
||||
#include "thin-provisioning/restore_emitter.h"
|
||||
#include "thin-provisioning/xml_format.h"
|
||||
#include "version.h"
|
||||
|
||||
#include <boost/optional.hpp>
|
||||
#include <fstream>
|
||||
#include <getopt.h>
|
||||
#include <iostream>
|
||||
#include <libgen.h>
|
||||
#include <linux/fs.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/stat.h>
|
||||
#include <sys/types.h>
|
||||
#include <unistd.h>
|
||||
|
||||
using namespace boost;
|
||||
@ -46,76 +35,128 @@ using namespace thin_provisioning;
|
||||
|
||||
namespace {
|
||||
struct flags {
|
||||
enum metadata_operations {
|
||||
METADATA_OP_NONE,
|
||||
METADATA_OP_FORMAT,
|
||||
METADATA_OP_OPEN,
|
||||
METADATA_OP_CREATE_THIN,
|
||||
METADATA_OP_LAST
|
||||
};
|
||||
|
||||
flags()
|
||||
: data_block_size(128),
|
||||
nr_data_blocks(10240),
|
||||
nr_thins(1),
|
||||
blocks_per_thin(1024),
|
||||
run_lengths(1024) {
|
||||
: op(METADATA_OP_NONE),
|
||||
data_block_size(128),
|
||||
nr_data_blocks(10240)
|
||||
{
|
||||
}
|
||||
|
||||
block_address data_block_size;
|
||||
bool check_conformance();
|
||||
|
||||
metadata_operations op;
|
||||
sector_t data_block_size;
|
||||
block_address nr_data_blocks;
|
||||
unsigned nr_thins;
|
||||
block_address blocks_per_thin;
|
||||
block_address run_lengths;
|
||||
optional<uint64_t> dev_id;
|
||||
optional<string> output;
|
||||
};
|
||||
|
||||
// This is how we stir in some entropy. It mixes up the data
|
||||
// device.
|
||||
class shuffler {
|
||||
public:
|
||||
shuffler(block_address nr_blocks, unsigned run_lengths)
|
||||
: nr_blocks_(nr_blocks / run_lengths),
|
||||
run_lengths_(run_lengths) {
|
||||
// FIXME: modulize the conditions
|
||||
bool flags::check_conformance() {
|
||||
if (op == METADATA_OP_NONE || op >= METADATA_OP_LAST) {
|
||||
cerr << "Invalid operation." << endl;
|
||||
return false;
|
||||
}
|
||||
|
||||
block_address map(block_address b) const {
|
||||
return reverse(b / run_lengths_) + (b % run_lengths_);
|
||||
if (!output) {
|
||||
cerr << "No output file provided." << endl;
|
||||
return false;
|
||||
} else
|
||||
check_output_file_requirements(*output);
|
||||
|
||||
if (op == METADATA_OP_CREATE_THIN && !dev_id) {
|
||||
cerr << "no device id provided." << endl;
|
||||
return false;
|
||||
}
|
||||
|
||||
private:
|
||||
block_address reverse(block_address b) const {
|
||||
return nr_blocks_ - b - 1ull;
|
||||
}
|
||||
|
||||
block_address nr_blocks_;
|
||||
block_address run_lengths_;
|
||||
};
|
||||
|
||||
void generate_device(emitter::ptr e, shuffler const &s, uint32_t dev_id,
|
||||
block_address nr_blocks, block_address base) {
|
||||
|
||||
e->begin_device(dev_id, nr_blocks, 0, 0, 0);
|
||||
for (unsigned b = 0; b < nr_blocks; b++)
|
||||
e->single_map(b, s.map(base + b), 0);
|
||||
e->end_device();
|
||||
return true;
|
||||
}
|
||||
|
||||
void generate_metadata(flags const &fs, emitter::ptr e) {
|
||||
e->begin_superblock("fake metadata", 0, 0, optional<uint32_t>(), optional<uint32_t>(),
|
||||
fs.data_block_size, fs.nr_data_blocks, optional<uint64_t>());
|
||||
//--------------------------------
|
||||
|
||||
shuffler s(fs.nr_data_blocks, fs.run_lengths);
|
||||
for (unsigned i = 0; i < fs.nr_thins; i++)
|
||||
generate_device(e, s, i, fs.blocks_per_thin, i * fs.blocks_per_thin);
|
||||
|
||||
e->end_superblock();
|
||||
single_mapping_tree::ptr new_mapping_tree(metadata::ptr md) {
|
||||
return single_mapping_tree::ptr(
|
||||
new single_mapping_tree(*md->tm_,
|
||||
mapping_tree_detail::block_time_ref_counter(md->data_sm_)));
|
||||
}
|
||||
|
||||
int create_metadata(flags const &fs) {
|
||||
try {
|
||||
// The block size gets updated by the restorer.
|
||||
block_manager::ptr bm(open_bm(*fs.output, block_manager::READ_WRITE));
|
||||
metadata::ptr md(new metadata(bm, metadata::CREATE, 128, 0));
|
||||
emitter::ptr restorer = create_restore_emitter(md);
|
||||
bool is_device_exists(metadata::ptr md, uint64_t dev_id) {
|
||||
uint64_t key[1] = {dev_id};
|
||||
|
||||
generate_metadata(fs, restorer);
|
||||
device_tree::maybe_value v1 = md->details_->lookup(key);
|
||||
if (v1)
|
||||
return true;
|
||||
|
||||
} catch (std::exception &e) {
|
||||
cerr << e.what() << endl;
|
||||
return 1;
|
||||
dev_tree::maybe_value v2 = md->mappings_top_level_->lookup(key);
|
||||
if (v2)
|
||||
return true;
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
//--------------------------------
|
||||
|
||||
metadata::ptr format_metadata(block_manager::ptr bm,
|
||||
sector_t data_block_size,
|
||||
block_address nr_data_blocks) {
|
||||
metadata::ptr md(new metadata(bm,
|
||||
metadata::CREATE,
|
||||
data_block_size,
|
||||
nr_data_blocks));
|
||||
md->commit();
|
||||
return md;
|
||||
}
|
||||
|
||||
metadata::ptr open_metadata(block_manager::ptr bm) {
|
||||
metadata::ptr md(new metadata(bm, true));
|
||||
return md;
|
||||
}
|
||||
|
||||
void create_thin(metadata::ptr md, uint64_t dev_id) {
|
||||
uint64_t key[1] = {dev_id};
|
||||
|
||||
if (is_device_exists(md, dev_id))
|
||||
throw runtime_error("device already exists");
|
||||
|
||||
device_tree_detail::device_details details;
|
||||
details.transaction_id_ = md->sb_.trans_id_;
|
||||
details.creation_time_ = md->sb_.time_;
|
||||
details.snapshotted_time_ = details.creation_time_;
|
||||
md->details_->insert(key, details);
|
||||
|
||||
single_mapping_tree::ptr subtree = new_mapping_tree(md);
|
||||
md->mappings_top_level_->insert(key, subtree->get_root());
|
||||
md->mappings_->set_root(md->mappings_top_level_->get_root()); // FIXME: ugly
|
||||
|
||||
md->commit();
|
||||
}
|
||||
|
||||
metadata::ptr open_or_format_metadata(block_manager::ptr bm, flags const &fs) {
|
||||
|
||||
if (fs.op == flags::METADATA_OP_FORMAT)
|
||||
return format_metadata(bm, fs.data_block_size, fs.nr_data_blocks);
|
||||
else
|
||||
return open_metadata(bm);
|
||||
}
|
||||
|
||||
int generate_metadata(flags const &fs) {
|
||||
block_manager::ptr bm = open_bm(*fs.output, block_manager::READ_WRITE);
|
||||
metadata::ptr md = open_or_format_metadata(bm, fs);
|
||||
|
||||
switch (fs.op) {
|
||||
case flags::METADATA_OP_CREATE_THIN:
|
||||
create_thin(md, *fs.dev_id);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return 0;
|
||||
@ -137,9 +178,6 @@ thin_generate_metadata_cmd::usage(std::ostream &out) const
|
||||
<< " {-h|--help}\n"
|
||||
<< " --data-block-size <block size>\n"
|
||||
<< " --nr-data-blocks <nr>\n"
|
||||
<< " --nr-thins <count>\n"
|
||||
<< " --blocks-per-thin <count>\n"
|
||||
<< " --run-lengths <count>\n"
|
||||
<< " {-o|--output} <output device or file>\n"
|
||||
<< " {-V|--version}" << endl;
|
||||
}
|
||||
@ -151,14 +189,15 @@ thin_generate_metadata_cmd::run(int argc, char **argv)
|
||||
struct flags fs;
|
||||
const char *shortopts = "hi:o:qV";
|
||||
const struct option longopts[] = {
|
||||
{ "help", no_argument, NULL, 'h'},
|
||||
{ "output", required_argument, NULL, 'o'},
|
||||
{ "data-block-size", required_argument, NULL, 1},
|
||||
{ "nr-data-blocks", required_argument, NULL, 2},
|
||||
{ "nr-thins", required_argument, NULL, 3},
|
||||
{ "blocks-per-thin", required_argument, NULL, 4},
|
||||
{ "run-lengths", required_argument, NULL, 5},
|
||||
{ "version", no_argument, NULL, 'V'},
|
||||
{ "help", no_argument, NULL, 'h' },
|
||||
{ "output", required_argument, NULL, 'o' },
|
||||
{ "format", no_argument, NULL, 1 },
|
||||
{ "open", no_argument, NULL, 2 },
|
||||
{ "create-thin", no_argument, NULL, 3 },
|
||||
{ "data-block-size", required_argument, NULL, 101 },
|
||||
{ "nr-data-blocks", required_argument, NULL, 102 },
|
||||
{ "dev-id", required_argument, NULL, 301 },
|
||||
{ "version", no_argument, NULL, 'V' },
|
||||
{ NULL, no_argument, NULL, 0 }
|
||||
};
|
||||
|
||||
@ -173,23 +212,27 @@ thin_generate_metadata_cmd::run(int argc, char **argv)
|
||||
break;
|
||||
|
||||
case 1:
|
||||
fs.data_block_size = parse_uint64(optarg, "data block size");
|
||||
fs.op = flags::METADATA_OP_FORMAT;
|
||||
break;
|
||||
|
||||
case 2:
|
||||
fs.nr_data_blocks = parse_uint64(optarg, "nr data blocks");
|
||||
fs.op = flags::METADATA_OP_OPEN;
|
||||
break;
|
||||
|
||||
case 3:
|
||||
fs.nr_thins = parse_uint64(optarg, "nr thins");
|
||||
fs.op = flags::METADATA_OP_CREATE_THIN;
|
||||
break;
|
||||
|
||||
case 4:
|
||||
fs.blocks_per_thin = parse_uint64(optarg, "blocks per thin");
|
||||
case 101:
|
||||
fs.data_block_size = parse_uint64(optarg, "data block size");
|
||||
break;
|
||||
|
||||
case 5:
|
||||
fs.run_lengths = parse_uint64(optarg, "run lengths");
|
||||
case 102:
|
||||
fs.nr_data_blocks = parse_uint64(optarg, "nr data blocks");
|
||||
break;
|
||||
|
||||
case 301:
|
||||
fs.dev_id = parse_uint64(optarg, "dev id");
|
||||
break;
|
||||
|
||||
case 'V':
|
||||
@ -202,14 +245,12 @@ thin_generate_metadata_cmd::run(int argc, char **argv)
|
||||
}
|
||||
}
|
||||
|
||||
if (!fs.output) {
|
||||
cerr << "No output file provided.\n\n";
|
||||
if (!fs.check_conformance()) {
|
||||
usage(cerr);
|
||||
return 1;
|
||||
} else
|
||||
check_output_file_requirements(*fs.output);
|
||||
}
|
||||
|
||||
return create_metadata(fs);
|
||||
return generate_metadata(fs);
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------
|
||||
|
||||
@ -1,338 +0,0 @@
|
||||
// This file is part of the thin-provisioning-tools source.
|
||||
//
|
||||
// thin-provisioning-tools is free software: you can redistribute it
|
||||
// and/or modify it under the terms of the GNU General Public License
|
||||
// as published by the Free Software Foundation, either version 3 of
|
||||
// the License, or (at your option) any later version.
|
||||
//
|
||||
// thin-provisioning-tools is distributed in the hope that it will be
|
||||
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty
|
||||
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License along
|
||||
// with thin-provisioning-tools. If not, see
|
||||
// <http://www.gnu.org/licenses/>.
|
||||
|
||||
#include <boost/iostreams/filtering_streambuf.hpp>
|
||||
#include <boost/iostreams/filter/zlib.hpp>
|
||||
#include <boost/optional.hpp>
|
||||
#include <fcntl.h>
|
||||
#include <fstream>
|
||||
#include <getopt.h>
|
||||
#include <sys/types.h>
|
||||
#include <unistd.h>
|
||||
#include <vector>
|
||||
|
||||
#include "persistent-data/file_utils.h"
|
||||
#include "persistent-data/space-maps/disk.h"
|
||||
#include "persistent-data/checksum.h"
|
||||
#include "thin-provisioning/commands.h"
|
||||
#include "thin-provisioning/superblock.h"
|
||||
#include "version.h"
|
||||
|
||||
using namespace thin_provisioning;
|
||||
using namespace persistent_data;
|
||||
|
||||
using boost::optional;
|
||||
|
||||
//---------------------------------------------------------------------------
|
||||
|
||||
namespace {
|
||||
using namespace std;
|
||||
constexpr uint64_t MAGIC = 0xa537a0aa6309ef77;
|
||||
constexpr uint64_t PACK_VERSION = 1;
|
||||
|
||||
uint32_t const SUPERBLOCK_CSUM_SEED = 160774;
|
||||
uint32_t const BITMAP_CSUM_XOR = 240779;
|
||||
uint32_t const INDEX_CSUM_XOR = 160478;
|
||||
uint32_t const BTREE_CSUM_XOR = 121107;
|
||||
|
||||
// Pack file format
|
||||
// ----------------
|
||||
//
|
||||
// file := <file-header> <entry>*
|
||||
// file-header := MAGIC BLOCK_SIZE NR_BLOCKS NR_ENTRIES
|
||||
// entry := BLOCK_NR BYTES class flags {
|
||||
|
||||
struct flags {
|
||||
optional<string> input_file_;
|
||||
optional<string> output_file_;
|
||||
};
|
||||
|
||||
class is_metadata_functor {
|
||||
public:
|
||||
is_metadata_functor() {
|
||||
}
|
||||
|
||||
bool operator() (void const *raw) const {
|
||||
uint32_t const *cksum = reinterpret_cast<uint32_t const*>(raw);
|
||||
base::crc32c sum(*cksum);
|
||||
sum.append(cksum + 1, MD_BLOCK_SIZE - sizeof(uint32_t));
|
||||
|
||||
switch (sum.get_sum()) {
|
||||
case SUPERBLOCK_CSUM_SEED:
|
||||
case INDEX_CSUM_XOR:
|
||||
case BITMAP_CSUM_XOR:
|
||||
case BTREE_CSUM_XOR:
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
void prealloc_file(string const &file, off_t len) {
|
||||
int fd = ::open(file.c_str(), O_TRUNC | O_CREAT | O_RDWR, 0666);
|
||||
if (fd < 0)
|
||||
throw runtime_error("couldn't open output file");
|
||||
|
||||
if (::fallocate(fd, 0, 0, len))
|
||||
throw runtime_error("couldn't fallocate");
|
||||
::close(fd);
|
||||
}
|
||||
|
||||
uint64_t read_u64(istream &in) {
|
||||
base::le64 n;
|
||||
in.read(reinterpret_cast<char *>(&n), sizeof(n));
|
||||
|
||||
if (!in)
|
||||
throw runtime_error("couldn't read u64");
|
||||
|
||||
return base::to_cpu<uint64_t>(n);
|
||||
}
|
||||
|
||||
void write_u64(ostream &out, uint64_t n) {
|
||||
base::le64 n_le = base::to_disk<base::le64>(n);
|
||||
out.write(reinterpret_cast<char *>(&n_le), sizeof(n_le));
|
||||
|
||||
if (!out)
|
||||
throw runtime_error("couldn't write u64");
|
||||
}
|
||||
|
||||
int pack(flags const &f) {
|
||||
using namespace boost::iostreams;
|
||||
|
||||
std::ofstream out_file(*f.output_file_, ios_base::binary);
|
||||
write_u64(out_file, MAGIC);
|
||||
write_u64(out_file, PACK_VERSION);
|
||||
|
||||
boost::iostreams::filtering_ostreambuf out_buf;
|
||||
out_buf.push(zlib_compressor());
|
||||
out_buf.push(out_file);
|
||||
std::ostream out(&out_buf);
|
||||
|
||||
block_manager::ptr bm = open_bm(*f.input_file_, block_manager::READ_ONLY, true);
|
||||
|
||||
uint64_t block_size = 4096;
|
||||
auto nr_blocks = bm->get_nr_blocks();
|
||||
|
||||
cerr << "nr_blocks = " << nr_blocks << "\n";
|
||||
|
||||
write_u64(out, block_size);
|
||||
write_u64(out, nr_blocks);
|
||||
|
||||
is_metadata_functor is_metadata;
|
||||
for (block_address b = 0; b < nr_blocks; b++) {
|
||||
auto rr = bm->read_lock(b);
|
||||
|
||||
if (is_metadata(rr.data())) {
|
||||
write_u64(out, b);
|
||||
out.write(reinterpret_cast<const char *>(rr.data()), block_size);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int unpack(flags const &f)
|
||||
{
|
||||
using namespace boost::iostreams;
|
||||
|
||||
ifstream in_file(*f.input_file_, ios_base::binary);
|
||||
if (!in_file)
|
||||
throw runtime_error("Couldn't open pack file");
|
||||
|
||||
if (read_u64(in_file) != MAGIC)
|
||||
throw runtime_error("Not a pack file.");
|
||||
|
||||
if (read_u64(in_file) != PACK_VERSION)
|
||||
throw runtime_error("unknown pack file format version");
|
||||
|
||||
filtering_istreambuf in_buf;
|
||||
in_buf.push(zlib_decompressor());
|
||||
in_buf.push(in_file);
|
||||
std::istream in(&in_buf);
|
||||
|
||||
auto block_size = read_u64(in);
|
||||
auto nr_blocks = read_u64(in);
|
||||
|
||||
prealloc_file(*f.output_file_, nr_blocks * block_size);
|
||||
block_manager bm(*f.output_file_, nr_blocks, 6, block_manager::READ_WRITE, true);
|
||||
uint8_t bytes[block_size];
|
||||
while (true) {
|
||||
uint64_t block_nr;
|
||||
try {
|
||||
block_nr = read_u64(in);
|
||||
} catch (...) {
|
||||
break;
|
||||
}
|
||||
|
||||
if (block_nr >= nr_blocks)
|
||||
throw runtime_error("block nr out of bounds");
|
||||
|
||||
in.read(reinterpret_cast<char *>(bytes), block_size);
|
||||
if (!in)
|
||||
throw runtime_error("couldn't read data");
|
||||
|
||||
auto wr = bm.write_lock(block_nr);
|
||||
memcpy(wr.data(), bytes, block_size);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
//---------------------------------------------------------------------------
|
||||
|
||||
thin_metadata_pack_cmd::thin_metadata_pack_cmd()
|
||||
: command("thin_metadata_pack")
|
||||
{
|
||||
}
|
||||
|
||||
void
|
||||
thin_metadata_pack_cmd::usage(ostream &out) const {
|
||||
out << "Usage: " << get_name() << " [options]\n"
|
||||
<< "Options:\n"
|
||||
<< " {-i|--input} <input metadata (binary format)>\n"
|
||||
<< " {-o|--output} <output packed metadata>\n"
|
||||
<< " {-h|--help}\n"
|
||||
<< " {-V|--version}" << endl;
|
||||
}
|
||||
|
||||
int
|
||||
thin_metadata_pack_cmd::run(int argc, char **argv)
|
||||
{
|
||||
const char shortopts[] = "hi:o:V";
|
||||
const struct option longopts[] = {
|
||||
{ "help", no_argument, NULL, 'h'},
|
||||
{ "input", required_argument, NULL, 'i'},
|
||||
{ "output", required_argument, NULL, 'o'},
|
||||
{ "version", no_argument, NULL, 'V'},
|
||||
{ NULL, no_argument, NULL, 0 }
|
||||
};
|
||||
|
||||
flags f;
|
||||
|
||||
int c;
|
||||
while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
|
||||
switch(c) {
|
||||
case 'h':
|
||||
usage(cout);
|
||||
return 0;
|
||||
|
||||
case 'i':
|
||||
f.input_file_ = optarg;
|
||||
break;
|
||||
|
||||
case 'o':
|
||||
f.output_file_ = optarg;
|
||||
break;
|
||||
|
||||
case 'V':
|
||||
cout << THIN_PROVISIONING_TOOLS_VERSION << endl;
|
||||
return 0;
|
||||
|
||||
default:
|
||||
usage(cerr);
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (!f.input_file_) {
|
||||
cerr << "No input file provided." << endl;
|
||||
usage(cerr);
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (!f.output_file_) {
|
||||
cerr << "No output file provided." << endl;
|
||||
usage(cerr);
|
||||
return 1;
|
||||
}
|
||||
|
||||
return pack(f);
|
||||
}
|
||||
|
||||
//---------------------------------------------------------------------------
|
||||
|
||||
thin_metadata_unpack_cmd::thin_metadata_unpack_cmd()
|
||||
: command("thin_metadata_unpack")
|
||||
{
|
||||
}
|
||||
|
||||
void
|
||||
thin_metadata_unpack_cmd::usage(ostream &out) const {
|
||||
out << "Usage: " << get_name() << " [options]\n"
|
||||
<< "Options:\n"
|
||||
<< " {-i|--input} <input packed metadata>\n"
|
||||
<< " {-o|--output} <output metadata (binary format)>\n"
|
||||
<< " {-h|--help}\n"
|
||||
<< " {-V|--version}" << endl;
|
||||
}
|
||||
|
||||
int
|
||||
thin_metadata_unpack_cmd::run(int argc, char **argv)
|
||||
{
|
||||
const char shortopts[] = "hi:o:V";
|
||||
const struct option longopts[] = {
|
||||
{ "help", no_argument, NULL, 'h'},
|
||||
{ "input", required_argument, NULL, 'i'},
|
||||
{ "output", required_argument, NULL, 'o'},
|
||||
{ "version", no_argument, NULL, 'V'},
|
||||
{ NULL, no_argument, NULL, 0 }
|
||||
};
|
||||
|
||||
flags f;
|
||||
|
||||
int c;
|
||||
while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
|
||||
switch(c) {
|
||||
case 'h':
|
||||
usage(cout);
|
||||
return 0;
|
||||
|
||||
case 'i':
|
||||
f.input_file_ = optarg;
|
||||
break;
|
||||
|
||||
case 'o':
|
||||
f.output_file_ = optarg;
|
||||
break;
|
||||
|
||||
case 'V':
|
||||
cout << THIN_PROVISIONING_TOOLS_VERSION << endl;
|
||||
return 0;
|
||||
|
||||
default:
|
||||
usage(cerr);
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (!f.input_file_) {
|
||||
cerr << "No input file provided." << endl;
|
||||
usage(cerr);
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (!f.output_file_) {
|
||||
cerr << "No output file provided." << endl;
|
||||
usage(cerr);
|
||||
return 1;
|
||||
}
|
||||
|
||||
return unpack(f);
|
||||
}
|
||||
|
||||
//---------------------------------------------------------------------------
|
||||
Loading…
Reference in New Issue
Block a user