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use fmt;
use io;
use memio;
use strings;
use trace;
type Tracer = struct {
trace::tracer,
};
fn newtracer() Tracer =
Tracer {
log = &tracer_log,
};
fn tracer_log(
tr: *trace::tracer,
ctx: nullable *trace::context,
lvl: trace::level,
fmt: str,
fields: fmt::field...
) void = {
// XXX: ideally there would be a statically allocated buffer for
// reasonably short messages and allocation would only happen for
// messages longer than that. ideally ideally there would be locking so
// we wouldn't need to allocate at all.
const buf = memio::dynamic_from(alloc([], 256));
defer io::close(&buf)!;
let ctx_ = ctx;
for (true) match (ctx_) {
case let ctx__: *trace::context =>
fmt::fprintf(&buf, ctx__.fmt, ctx__.fields...)!;
io::write(&buf, [0x3a, 0x20])!; // ": "
ctx_ = ctx__.next;
case null => break;
};
fmt::fprintfln(&buf, fmt, fields...)!;
const prio = 6 - lvl: int;
androlog(prio, memio::string(&buf)!);
};
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