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feat: pre-allocate enough space for accept items

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Louis Pearson 2024-04-27 21:09:20 -06:00
parent 5e347ce649
commit 31ba05d6e9
1 changed files with 7 additions and 5 deletions
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12
src/request.zig
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@ -605,10 +605,12 @@ const AcceptHeaderList = std.ArrayList(AcceptItem);
/// Parses `Accept:` http header into `list`, ordered from highest q factor to lowest /// Parses `Accept:` http header into `list`, ordered from highest q factor to lowest
pub fn parseAcceptHeaders(self: *const Self, allocator: std.mem.Allocator) !AcceptHeaderList { pub fn parseAcceptHeaders(self: *const Self, allocator: std.mem.Allocator) !AcceptHeaderList {
var list = AcceptHeaderList.init(allocator); const accept_str = self.getHeaderCommon(.accept) orelse return error.NoAcceptHeader;
errdefer list.deinit();
const accept_str = self.getHeaderCommon(.accept) orelse return error.NoAccept; const comma_count = std.mem.count(u8, accept_str, ",");
var list = try AcceptHeaderList.initCapacity(allocator, comma_count + 1);
errdefer list.deinit();
var tok_iter = std.mem.tokenize(u8, accept_str, ", "); var tok_iter = std.mem.tokenize(u8, accept_str, ", ");
while (tok_iter.next()) |tok| { while (tok_iter.next()) |tok| {
@ -637,11 +639,11 @@ pub fn parseAcceptHeaders(self: *const Self, allocator: std.mem.Allocator) !Acce
}; };
for (list.items, 1..) |item, i| { for (list.items, 1..) |item, i| {
if (AcceptItem.lessThan({}, new_item, item)) { if (AcceptItem.lessThan({}, new_item, item)) {
try list.insert(i, new_item); list.insertAssumeCapacity(i, new_item);
break; break;
} }
} else { } else {
try list.append(new_item); list.appendAssumeCapacity(new_item);
} }
} }
return list; return list;