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Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 14:34:00 -08:00
[package]
name = "moonfire-nvr"
version = "0.1.0"
authors = ["Scott Lamb <slamb@slamb.org>"]
compile with stable Rust The benchmarks now require "cargo bench --features=nightly". The extra #[cfg(nightly)] switches in the code needed for it are a bit annoying; I may move the benches to a separate directory to avoid this. But for now, this works.
2016-12-09 22:04:35 -08:00
[features]
upgrade to async hyper serve_generated_bytes is >3X faster. One caveat is that the reactor thread may stall when reading from the memory-mapped slice. Moonfire NVR is basically a single-user program, so that may not be so bad, but we'll see.
2017-03-02 19:29:28 -08:00
# The nightly feature is used within moonfire-nvr itself to gate the
# benchmarks. Also pass it along to crates that can benefit from it.
nightly = ["parking_lot/nightly"]
compile with stable Rust The benchmarks now require "cargo bench --features=nightly". The extra #[cfg(nightly)] switches in the code needed for it are a bit annoying; I may move the benches to a separate directory to avoid this. But for now, this works.
2016-12-09 22:04:35 -08:00
upgrade rusqlite and support bundled library SQLite3 has gotten some noticeable speed improvements in recent releases. This is a modest improvement on reasonably new platforms, and a pretty significant one on Raspbian Jessie (which has an incredibly old SQLite3).
2017-03-03 22:42:13 -08:00
# The bundled feature includes bundled (aka statically linked) versions of
# native libraries where possible.
bundled = ["rusqlite/bundled"]
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 14:34:00 -08:00
[dependencies]
update several dependencies I left serde alone because uuid hasn't been updated for the new version.
2017-01-27 20:58:04 -08:00
byteorder = "1.0"
update dependencies * The mylog update fixes a couple bad bugs. * Otherwise, just keep up with the Rust ecosystem.
2017-06-11 12:57:55 -07:00
docopt = "0.8"
upgrade to async hyper serve_generated_bytes is >3X faster. One caveat is that the reactor thread may stall when reading from the memory-mapped slice. Moonfire NVR is basically a single-user program, so that may not be so bad, but we'll see.
2017-03-02 19:29:28 -08:00
futures = "0.1"
add a basic Javascript UI The Javascript is pretty amateurish I'm sure but at least it's something to iterate from. It's already much more pleasant for browsing through videos in several ways: * more responsive to load only a day at a time rather than 90+ days * much easier to see the same time segment on several cameras * more pleasant to have the videos load as a popup rather than a link that blows away your position in an enormous list * exposes the fancier .mp4 generation options: splitting at lengths other than the default, trimming to an arbitrary start and end time, including a subtitle track with timestamps. There's a slight regression in functionality: I didn't match the former top-level page which showed how much camera used of its disk allocation and the total duration of video. This is exposed in the JSON API, so it shouldn't be too hard to add back.
2017-10-21 21:54:27 -07:00
futures-cpupool = "0.1"
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 14:34:00 -08:00
fnv = "1.0"
fix broken Cargo.toml I'd temporarily pointed this to a local path for development and didn't notice it was still in place when committing. Back to the git path that works for everyone.
2017-10-21 22:35:24 -07:00
http-entity = { git = "https://github.com/scottlamb/http-entity" }
http-file = { git = "https://github.com/scottlamb/http-entity" }
update deps (particularly hyper) + fix warnings
2017-09-21 21:51:58 -07:00
hyper = "0.11.2"
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 14:34:00 -08:00
lazy_static = "0.2"
libc = "0.2"
log = { version = "0.3", features = ["release_max_level_info"] }
lru-cache = "0.1"
update several dependencies I left serde alone because uuid hasn't been updated for the new version.
2017-01-27 20:58:04 -08:00
memmap = "0.5"
update dependencies * The mylog update fixes a couple bad bugs. * Otherwise, just keep up with the Rust ecosystem.
2017-06-11 12:57:55 -07:00
mime = "0.3"
use my own ffmpeg crate This significantly improves safety of the ffmpeg interface. The complex ABIs aren't accessed directly from Rust. Instead, I have a small C wrapper which uses the ffmpeg C API and the C headers at compile-time to determine the proper ABI in the same way any C program using ffmpeg would, so that the ABI doesn't have to be duplicated in Rust code. I've tested with ffmpeg 2.x and ffmpeg 3.x; it seems to work properly with both where before ffmpeg 3.x caused segfaults. It still depends on ABI compatibility between the compiled and running versions. C programs need this, too, and normal shared library versioning practices provide this guarantee. But log both versions on startup for diagnosing problems with this. Fixes #7
2017-09-20 21:06:06 -07:00
moonfire-ffmpeg = { path = "ffmpeg" }
specify git path to mylog
2017-03-26 00:03:24 -07:00
mylog = { git = "https://github.com/scottlamb/mylog" }
update several dependencies I left serde alone because uuid hasn't been updated for the new version.
2017-01-27 20:58:04 -08:00
openssl = "0.9"
update dependencies * The mylog update fixes a couple bad bugs. * Otherwise, just keep up with the Rust ecosystem.
2017-06-11 12:57:55 -07:00
parking_lot = { version = "0.4", features = [] }
upgrade to async hyper serve_generated_bytes is >3X faster. One caveat is that the reactor thread may stall when reading from the memory-mapped slice. Moonfire NVR is basically a single-user program, so that may not be so bad, but we'll see.
2017-03-02 19:29:28 -08:00
reffers = { git = "https://github.com/diwic/reffers-rs" }
add matching time parsing and formatting routines * add a --ts subcommand to convert between numeric and human-readable representations. This is handy when directly inspecting the SQLite database or API output. * also take the human-readable form in the web interface's camera view. * to reduce confusion, when using trim=true on the web interface's camera view, trim the displayed starting and ending times as well as the actual .mp4 file links.
2017-01-12 23:09:02 -08:00
regex = "0.2"
update dependencies * The mylog update fixes a couple bad bugs. * Otherwise, just keep up with the Rust ecosystem.
2017-06-11 12:57:55 -07:00
rusqlite = "0.12"
serde = "1.0"
serde_derive = "1.0"
serde_json = "1.0"
smallvec = "0.4"
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 14:34:00 -08:00
time = "0.1"
upgrade to async hyper serve_generated_bytes is >3X faster. One caveat is that the reactor thread may stall when reading from the memory-mapped slice. Moonfire NVR is basically a single-user program, so that may not be so bad, but we'll see.
2017-03-02 19:29:28 -08:00
tokio-core = "0.1"
tokio-signal = "0.1"
update several dependencies I left serde alone because uuid hasn't been updated for the new version.
2017-01-27 20:58:04 -08:00
url = "1.4"
update dependencies * The mylog update fixes a couple bad bugs. * Otherwise, just keep up with the Rust ecosystem.
2017-06-11 12:57:55 -07:00
uuid = { version = "0.5", features = ["serde", "v4"] }
fully implement json handling as in spec This is a significant milestone; now the Rust branch matches the C++ branch's features. In the process, I switched from using serde_derive (which requires nightly Rust) to serde_codegen (which does not). It was easier than I thought it'd be. I'm getting close to no longer requiring nightly Rust.
2016-12-08 21:28:50 -08:00
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 14:34:00 -08:00
[dev-dependencies]
update deps (particularly hyper) + fix warnings
2017-09-21 21:51:58 -07:00
reqwest = "0.7"
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 14:34:00 -08:00
tempdir = "0.3"
new "moonfire-nvr config" subcommand This is a ncurses-based user interface for configuration. This fills a major usability gap: the system can be configured without manual SQL commands.
2017-02-05 19:58:41 -08:00
[dependencies.cursive]
update dependencies * The mylog update fixes a couple bad bugs. * Otherwise, just keep up with the Rust ecosystem.
2017-06-11 12:57:55 -07:00
version = "0.5"
new "moonfire-nvr config" subcommand This is a ncurses-based user interface for configuration. This fills a major usability gap: the system can be configured without manual SQL commands.
2017-02-05 19:58:41 -08:00
#default-features = false
use the latest libc crate to build on OS X
2017-09-22 06:20:40 -07:00
#features = ["termion-backend"]
new "moonfire-nvr config" subcommand This is a ncurses-based user interface for configuration. This fills a major usability gap: the system can be configured without manual SQL commands.
2017-02-05 19:58:41 -08:00
Rust rewrite I should have submitted/pushed more incrementally but just played with it on my computer as I was learning the language. The new Rust version more or less matches the functionality of the current C++ version, although there are many caveats listed below. Upgrade notes: when moving from the C++ version, I recommend dropping and recreating the "recording_cover" index in SQLite3 to pick up the addition of the "video_sync_samples" column: $ sudo systemctl stop moonfire-nvr $ sudo -u moonfire-nvr sqlite3 /var/lib/moonfire-nvr/db/db sqlite> drop index recording_cover; sqlite3> create index ...rest of command as in schema.sql...; sqlite3> ^D Some known visible differences from the C++ version: * .mp4 generation queries SQLite3 differently. Before it would just get all video indexes in a single query. Now it leads with a query that should be satisfiable by the covering index (assuming the index has been recreated as noted above), then queries individual recording's indexes as needed to fill a LRU cache. I believe this is roughly similar speed for the initial hit (which generates the moov part of the file) and significantly faster when seeking. I would have done it a while ago with the C++ version but didn't want to track down a lru cache library. It was easier to find with Rust. * On startup, the Rust version cleans up old reserved files. This is as in the design; the C++ version was just missing this code. * The .html recording list output is a little different. It's in ascending order, with the most current segment shorten than an hour rather than the oldest. This is less ergonomic, but it was easy. I could fix it or just wait to obsolete it with some fancier JavaScript UI. * commandline argument parsing and logging have changed formats due to different underlying libraries. * The JSON output isn't quite right (matching the spec / C++ implementation) yet. Additional caveats: * I haven't done any proof-reading of prep.sh + install instructions. * There's a lot of code quality work to do: adding (back) comments and test coverage, developing a good Rust style. * The ffmpeg foreign function interface is particularly sketchy. I'd eventually like to switch to something based on autogenerated bindings. I'd also like to use pure Rust code where practical, but once I do on-NVR motion detection I'll need to existing C/C++ libraries for speed (H.264 decoding + OpenCL-based analysis).
2016-11-25 14:34:00 -08:00
[profile.release]
debug = true
[profile.bench]
debug = true
switch to a hyper vendor branch with Nagle fix There were Nagle's algorithm delays in both the "fresh_client" and "reuse_client" versions of the .mp4 serving benchmark. Now performance is much more consistent.
2017-02-26 19:05:05 -08:00
[replace]
use the latest libc crate to build on OS X
2017-09-22 06:20:40 -07:00
# This hyper fork has a patch to disable Nagle's algorithm.
update deps (particularly hyper) + fix warnings
2017-09-21 21:51:58 -07:00
"hyper:0.11.2" = { git = "https://github.com/scottlamb/hyper", branch = "moonfire-on-0.11.x" }
use the latest libc crate to build on OS X
2017-09-22 06:20:40 -07:00
# The libc crate just added OS X support for clock_gettime, which Moonfire NVR
# needs. There hasn't been a release, so go straight to git for the moment.
# Do it for all platforms because [target.foo.replace] is apparently
# unsupported.
#[target.'cfg(target_os = "macos")'.replace]
#[target.x86_64-apple-darwin.replace]
"libc:0.2.31" = { git = "https://github.com/rust-lang/libc" }
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