diff options
| -rw-r--r-- | io.c | 10 |
1 files changed, 6 insertions, 4 deletions
@@ -5186,12 +5186,11 @@ rb_io_pwrite(VALUE io, VALUE str, VALUE offset) rb_io_t *fptr; ssize_t n; struct prdwr_internal_arg arg; + VALUE tmp; if (!RB_TYPE_P(str, T_STRING)) str = rb_obj_as_string(str); - arg.buf = RSTRING_PTR(str); - arg.count = (size_t)RSTRING_LEN(str); arg.offset = NUM2OFFT(offset); io = GetWriteIO(io); @@ -5199,10 +5198,13 @@ rb_io_pwrite(VALUE io, VALUE str, VALUE offset) rb_io_check_writable(fptr); arg.fd = fptr->fd; - n = (ssize_t)rb_thread_io_blocking_region(internal_pwrite_func, &arg, fptr->fd); - RB_GC_GUARD(str); + tmp = rb_str_tmp_frozen_acquire(str); + arg.buf = RSTRING_PTR(tmp); + arg.count = (size_t)RSTRING_LEN(tmp); + n = (ssize_t)rb_thread_io_blocking_region(internal_pwrite_func, &arg, fptr->fd); if (n == -1) rb_sys_fail_path(fptr->pathv); + rb_str_tmp_frozen_release(str, tmp); return SSIZET2NUM(n); } |