bump to zig 0.11.0-dev.2560+602029bb2
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33
README.md
33
README.md
@ -10,35 +10,36 @@ Turbonss is optimized for reading. If the data changes in any way, the whole
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file will need to be regenerated. Therefore, it was created, and best suited,
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for environments that have a central user & group database which then needs to
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be distributed to many servers/services, and the data does not change very
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often (e.g. hourly).
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often.
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This is the fastest known NSS passwd/group implementation for *reads*. On my
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2018-era laptop a corpus with 10k users, 10k groups and 500 average members per
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group, `id` takes 17 seconds with the glibc default implementation, 10-17
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milliseconds with a pre-cached `nscd`, ~8 milliseconds with `turbonss`.
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milliseconds with a pre-cached `nscd`, ~8 milliseconds with uncached
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`turbonss`.
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Due to the nature of being built with Zig, this will work on glibc versions as
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old as 2.16 (may work with even older ones, I did not test beyond that).
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Project status
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--------------
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The project is finished and was never used recommended for production. If you
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are considering using turbonss, try nscd first. Turbonss is only 2-5 times
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faster than pre-warmed nscd, which usually does not matter enough to go through
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the hoops of using a nonstandard nss library in the first place.
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This project works, but has never seen real production use. If you want to use
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turbonss instead of a battle-tested, albeit slower nscd, keep the following in
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mind:
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- turbonss has not been fuzzed, so it will crash a program on invalid database
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file.
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- requires a nightly version of zig (that will change with 0.11).
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Yours truly worked on this for about 7 months. This was also my first zig
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project which I never went to (nor really needed to) come back and clean up.
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Update 2022-02: I am reviving it:
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- updated to stage2, so it works on nightly again.
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- I learned some zig over the last year, will be cleaning it up.
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Currently it has not been fuzz-tested, so it will crash on invalid data. Please
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use `ReleaseSafe` until it is fuzzed.
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If you insist on using turbonss in prod, compile with `ReleaseSafe`. It is
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plenty as fast with this mode, but an invalid database will lead to defined
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behavior (i.e. crash with a stack trace) instead of overwriting memory
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wherever.
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Dependencies
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------------
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1. zig 0.11.0-dev.1782+b52be973d or higher.
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1. zig around 0.11.0-dev.2560+602029bb2.
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2. [cmph][cmph]: bundled with this repository.
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Trying it out
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10
build.zig
10
build.zig
@ -83,7 +83,7 @@ pub fn build(b: *zbs.Builder) void {
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exe.strip = strip;
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exe.want_lto = true;
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addCmphDeps(exe, cmph);
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exe.install();
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b.installArtifact(exe);
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}
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{
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@ -96,7 +96,7 @@ pub fn build(b: *zbs.Builder) void {
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exe.compress_debug_sections = .zlib;
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exe.strip = strip;
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exe.want_lto = true;
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exe.install();
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b.installArtifact(exe);
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}
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{
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@ -109,7 +109,7 @@ pub fn build(b: *zbs.Builder) void {
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exe.compress_debug_sections = .zlib;
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exe.strip = strip;
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exe.want_lto = true;
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exe.install();
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b.installArtifact(exe);
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}
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{
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@ -125,7 +125,7 @@ pub fn build(b: *zbs.Builder) void {
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exe.linkLibC();
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exe.linkLibrary(bdz);
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exe.addIncludePath("deps/cmph/src");
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exe.install();
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b.installArtifact(exe);
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}
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{
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@ -146,7 +146,7 @@ pub fn build(b: *zbs.Builder) void {
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so.linkLibC();
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so.linkLibrary(bdz);
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so.addIncludePath("deps/cmph/src");
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so.install();
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b.installArtifact(so);
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}
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{
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