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std.fifo.LinearFifo: ensureUnusedCapacity and ensureTotalCapacity

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Same as c8ae581fef6506a8234cdba1355ba7f0f449031a, but for LinearFifo.
This commit is contained in:
Ryan Liptak 2021-09-16 17:19:41 -07:00 committed by Isaac Freund
parent d2b5105f54
commit cfe71cb67a
1 changed files with 6 additions and 3 deletions
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9
lib/std/fifo.zig
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@ -119,8 +119,11 @@ pub fn LinearFifo(
} }
} }
/// Deprecated: call `ensureUnusedCapacity` or `ensureTotalCapacity`.
pub const ensureCapacity = ensureTotalCapacity;
/// Ensure that the buffer can fit at least `size` items /// Ensure that the buffer can fit at least `size` items
pub fn ensureCapacity(self: *Self, size: usize) !void { pub fn ensureTotalCapacity(self: *Self, size: usize) !void {
if (self.buf.len >= size) return; if (self.buf.len >= size) return;
if (buffer_type == .Dynamic) { if (buffer_type == .Dynamic) {
self.realign(); self.realign();
@ -135,7 +138,7 @@ pub fn LinearFifo(
pub fn ensureUnusedCapacity(self: *Self, size: usize) error{OutOfMemory}!void { pub fn ensureUnusedCapacity(self: *Self, size: usize) error{OutOfMemory}!void {
if (self.writableLength() >= size) return; if (self.writableLength() >= size) return;
return try self.ensureCapacity(math.add(usize, self.count, size) catch return error.OutOfMemory); return try self.ensureTotalCapacity(math.add(usize, self.count, size) catch return error.OutOfMemory);
} }
/// Returns number of items currently in fifo /// Returns number of items currently in fifo
@ -471,7 +474,7 @@ test "LinearFifo(u8, .Dynamic)" {
} }
{ {
try fifo.ensureCapacity(1); try fifo.ensureTotalCapacity(1);
var in_fbs = std.io.fixedBufferStream("pump test"); var in_fbs = std.io.fixedBufferStream("pump test");
var out_buf: [50]u8 = undefined; var out_buf: [50]u8 = undefined;
var out_fbs = std.io.fixedBufferStream(&out_buf); var out_fbs = std.io.fixedBufferStream(&out_buf);