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std.io.Reader.readRemainingArrayList: add minimum_buffer_size

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since some reader implementations may require it
This commit is contained in:
Andrew Kelley 2025-05-01 17:31:51 -07:00
parent 2dbf05af0a
commit f32fc8a848
1 changed files with 3 additions and 2 deletions
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5
lib/std/io/Reader.zig
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@ -186,7 +186,7 @@ pub const LimitedAllocError = Allocator.Error || ShortError || error{StreamTooLo
pub fn readRemainingAlloc(r: Reader, gpa: Allocator, limit: Reader.Limit) LimitedAllocError![]u8 {
var buffer: ArrayList(u8) = .empty;
defer buffer.deinit(gpa);
try readRemainingArrayList(r, gpa, null, &buffer, limit);
try readRemainingArrayList(r, gpa, null, &buffer, limit, 1);
return buffer.toOwnedSlice(gpa);
}
@ -209,10 +209,11 @@ pub fn readRemainingArrayList(
comptime alignment: ?std.mem.Alignment,
list: *std.ArrayListAlignedUnmanaged(u8, alignment),
limit: Limit,
minimum_buffer_size: usize,
) LimitedAllocError!void {
var remaining = limit;
while (true) {
try list.ensureUnusedCapacity(gpa, 1);
try list.ensureUnusedCapacity(gpa, minimum_buffer_size);
const buffer = remaining.slice1(list.unusedCapacitySlice());
const n = r.vtable.readVec(r.context, &.{buffer}) catch |err| switch (err) {
error.EndOfStream => return,