Benjamin A. Beasley
5 months ago
parent
7257d65680
commit
24bece0978
@ -0,0 +1,71 @@
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From 64a98f1bdc2a37c4dd1f29ee6886ed5f4688439e Mon Sep 17 00:00:00 2001
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From: Daniel Reiter Horn <danielrh@users.sourceforge.net>
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Date: Wed, 2 Oct 2024 00:43:00 -0700
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Subject: [PATCH] Fix 32 bit tests by allocating less memory by running with
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less parallelism in that case
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---
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src/enc/test.rs | 33 ++++++++++++++++++++++++++++++++-
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1 file changed, 32 insertions(+), 1 deletion(-)
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diff --git a/src/enc/test.rs b/src/enc/test.rs
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index 744472b..854d9b8 100755
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--- a/src/enc/test.rs
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+++ b/src/enc/test.rs
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@@ -211,6 +211,34 @@ fn oneshot_compress(
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(true, next_out_offset)
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}
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+static lock32: core::sync::atomic::AtomicU32 = core::sync::atomic::AtomicU32::new(0);
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+
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+/// 32bit systems do not have sufficient memory to compress multiple items
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+/// at the same time with the current limits and defaults. So we instead spin
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+/// until a process has completed compression. We cannot use proper locks
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+/// in nostd, so we fall back to this simple spin lock.
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+#[cfg(target_pointer_width = "32")]
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+fn lock_if_32bit(){
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+ use core::sync::atomic::Ordering;
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+ loop {
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+ let cur = lock32.fetch_add(1, Ordering::SeqCst);
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+ if cur == 0 {
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+ return;
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+ }
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+ lock32.fetch_sub(1, Ordering::SeqCst);
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+ }
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+}
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+#[cfg(target_pointer_width = "32")]
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+fn unlock_if_32bit(){
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+ use core::sync::atomic::Ordering;
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+ lock32.fetch_sub(1, Ordering::SeqCst);
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+}
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+#[cfg(not(target_pointer_width = "32"))]
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+fn lock_if_32bit(){
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+}
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+#[cfg(not(target_pointer_width = "32"))]
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+fn unlock_if_32bit(){
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+}
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fn oneshot_decompress(compressed: &[u8], output: &mut [u8]) -> (BrotliResult, usize, usize) {
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let mut available_in: usize = compressed.len();
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@@ -255,6 +283,7 @@ fn oneshot(
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in_buffer_size: usize,
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out_buffer_size: usize,
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) -> (BrotliResult, usize, usize) {
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+ lock_if_32bit();
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let (success, mut available_in) = oneshot_compress(
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input,
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compressed,
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@@ -268,7 +297,9 @@ fn oneshot(
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//return (BrotliResult::ResultFailure, 0, 0);
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available_in = compressed.len();
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}
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- oneshot_decompress(&mut compressed[..available_in], output)
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+ let ret = oneshot_decompress(&mut compressed[..available_in], output);
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+ unlock_if_32bit();
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+ ret
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}
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#[test]
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--
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2.46.1
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