cleanup on init failure

Author: karlseguin

src/json.zig

@@ -21,6 +21,7 @@ pub const Json = struct {
 
 	pub fn init(allocator: Allocator, config: Config) !Json {
 		const buf = try allocator.alloc(u8, config.max_size);
+		errdefer allocator.free(buf);
 
 		var prefix_length: usize = 0;
 		if (config.prefix) |prefix| {

src/logfmt.zig

@@ -20,6 +20,7 @@ pub const LogFmt = struct {
 
 	pub fn init(allocator: Allocator, config: Config) !LogFmt {
 		const buf = try allocator.alloc(u8, config.max_size);
+		errdefer allocator.free(buf);
 
 		var prefix_length: usize = 0;
 		if (config.prefix) |prefix| {

src/pool.zig

@@ -25,6 +25,7 @@ pub const Pool = struct {
 
 		const pool = try allocator.create(Pool);
 		errdefer allocator.destroy(pool);
+
 		pool.* = .{
 			.mutex = .{},
 			.config = config,
@@ -34,8 +35,16 @@ pub const Pool = struct {
 			.level = @intFromEnum(config.level),
 		};
 
+		var initialized: usize = 0;
+		errdefer {
+			for (0..initialized) |i| {
+				pool.destroyLogger(loggers[i]);
+			}
+		}
+
 		for (0..size) |i| {
 			loggers[i] = try pool.createLogger();
+			initialized += 1;
 		}
 
 		return pool;