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2f24448abd
libp2p v2.0.0's `crypto.newRng()` returns the new `Rng` wrapper type, which can't be assigned to a `ref HmacDrbgContext` field. The two test helper modules (tests/testlib/common.nim and tests/test_helpers.nim) both fall in this pattern; rest of the codebase migrated in the prior sweep but these two test-only files were missed because they don't compile during the wakunode2 / chat2mix builds — only when the test target is built (which CI does, locally we didn't until this PR). Same fix pattern as the other newRng → HmacDrbgContext.new() migrations.
36 lines
1.3 KiB
Nim
36 lines
1.3 KiB
Nim
import std/[times, random], bearssl/rand, libp2p/crypto/crypto
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## Randomization
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proc randomize*() =
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## Initializes the default random number generator with the given seed.
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## From: https://nim-lang.org/docs/random.html#randomize,int64
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let now = getTime()
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randomize(now.toUnix() * 1_000_000_000 + now.nanosecond)
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## RNG
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# Copied from here: https://github.com/status-im/nim-libp2p/blob/d522537b19a532bc4af94fcd146f779c1f23bad0/tests/helpers.nim#L28
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type Rng = object
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rng: ref HmacDrbgContext
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# Typically having a module variable is considered bad design. This case should
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# be considered as an exception and it should be used only in the tests.
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var rngVar: Rng
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proc getRng(): ref HmacDrbgContext =
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# TODO: if `rngVar` is a threadvar like it should be, there are random and
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# spurious compile failures on mac - this is not gcsafe but for the
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# purpose of the tests, it's ok as long as we only use a single thread
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{.gcsafe.}:
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if rngVar.rng.isNil():
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# libp2p v2.0.0: crypto.newRng() returns the new `Rng` wrapper type;
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# construct an HmacDrbgContext directly so the field type stays as
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# `ref HmacDrbgContext` (what bearssl-style consumers expect).
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rngVar.rng = HmacDrbgContext.new()
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rngVar.rng
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template rng*(): ref HmacDrbgContext =
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getRng()
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