void trace_printf(const char *fmt, ...)
{
struct strbuf buf;
va_list ap;
int fd, len, need_close = 0;
fd = get_trace_fd(&need_close);
if (!fd)
return;
set_try_to_free_routine(do_nothing); /* is never reset */
strbuf_init(&buf, 64);
va_start(ap, fmt);
len = vsnprintf(buf.buf, strbuf_avail(&buf), fmt, ap);
va_end(ap);
if (len >= strbuf_avail(&buf)) {
strbuf_grow(&buf, len - strbuf_avail(&buf) + 128);
va_start(ap, fmt);
len = vsnprintf(buf.buf, strbuf_avail(&buf), fmt, ap);
va_end(ap);
if (len >= strbuf_avail(&buf))
die("broken vsnprintf");
}
strbuf_setlen(&buf, len);
write_or_whine_pipe(fd, buf.buf, buf.len, err_msg);
strbuf_release(&buf);
if (need_close)
close(fd);
}
void trace_strbuf(const char *key, const struct strbuf *buf)
{
int fd, need_close = 0;
fd = get_trace_fd(key, &need_close);
if (!fd)
return;
write_or_whine_pipe(fd, buf->buf, buf->len, err_msg);
if (need_close)
close(fd);
}
void trace_printf(const char *fmt, ...)
{
struct strbuf buf = STRBUF_INIT;
va_list ap;
int fd, need_close = 0;
fd = get_trace_fd(&need_close);
if (!fd)
return;
set_try_to_free_routine(NULL); /* is never reset */
va_start(ap, fmt);
strbuf_vaddf(&buf, fmt, ap);
va_end(ap);
write_or_whine_pipe(fd, buf.buf, buf.len, err_msg);
strbuf_release(&buf);
if (need_close)
close(fd);
}
