mirrors/zig
1
0
Fork 0
mirror of https://codeberg.org/ziglang/zig.git synced 2025-12-06 22:04:21 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

compress.xz: make reader loop little more readable

Browse source 
No need to do same error check on two places. First return all
uncompressed data then on last read check error.
This commit is contained in:
Igor Anić 2024-03-13 18:41:20 +01:00
parent a21f9b6d8b
commit 54f882c4aa
1 changed files with 7 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
lib/std/compress/xz/block.zig
View file

@ -59,24 +59,18 @@ pub fn Decoder(comptime ReaderType: type) type {
pub fn read(self: *Self, output: []u8) Error!usize { pub fn read(self: *Self, output: []u8) Error!usize {
while (true) { while (true) {
const input = self.to_read.items[self.read_pos..]; const unread_len = self.to_read.items.len - self.read_pos;
if (input.len > 0) { if (unread_len > 0) {
const n = @min(input.len, output.len); const n = @min(unread_len, output.len);
@memcpy(output[0..n], input[0..n]); @memcpy(output[0..n], self.to_read.items[self.read_pos..][0..n]);
self.read_pos += n; self.read_pos += n;
if (self.read_pos == self.to_read.items.len and self.err != null) {
if (self.err.? == DecodeError.EndOfStreamWithNoError) {
return n; return n;
} }
return self.err.?; if (self.err) |e| {
} if (e == DecodeError.EndOfStreamWithNoError) {
return n;
}
if (self.err != null) {
if (self.err.? == DecodeError.EndOfStreamWithNoError) {
return 0; return 0;
} }
return self.err.?; return e;
} }
if (self.read_pos > 0) { if (self.read_pos > 0) {
self.to_read.shrinkRetainingCapacity(0); self.to_read.shrinkRetainingCapacity(0);