1 files changed, 25 insertions, 2 deletions
diff --git a/scheduler.c b/scheduler.c
index 51696ab18f..06658356b1 100644
--- a/scheduler.c
+++ b/scheduler.c
@@ -25,8 +25,8 @@ static ID id_timeout_after;
 static ID id_kernel_sleep;
 static ID id_process_wait;
 
-static ID id_io_read;
-static ID id_io_write;
+static ID id_io_read, id_io_pread;
+static ID id_io_write, id_io_pwrite;
 static ID id_io_wait;
 static ID id_io_close;
 
@@ -46,7 +46,10 @@ Init_Fiber_Scheduler(void)
     id_process_wait = rb_intern_const("process_wait");
 
     id_io_read = rb_intern_const("io_read");
+    id_io_pread = rb_intern_const("io_pread");
     id_io_write = rb_intern_const("io_write");
+    id_io_pwrite = rb_intern_const("io_pwrite");
+
     id_io_wait = rb_intern_const("io_wait");
     id_io_close = rb_intern_const("io_close");
 
@@ -239,6 +242,16 @@ rb_fiber_scheduler_io_read(VALUE scheduler, VALUE io, VALUE buffer, size_t lengt
 }
 
 VALUE
+rb_fiber_scheduler_io_pread(VALUE scheduler, VALUE io, VALUE buffer, size_t length, off_t offset)
+{
+    VALUE arguments[] = {
+        io, buffer, SIZET2NUM(length), OFFT2NUM(offset)
+    };
+
+    return rb_check_funcall(scheduler, id_io_pread, 4, arguments);
+}
+
+VALUE
 rb_fiber_scheduler_io_write(VALUE scheduler, VALUE io, VALUE buffer, size_t length)
 {
     VALUE arguments[] = {
@@ -249,6 +262,16 @@ rb_fiber_scheduler_io_write(VALUE scheduler, VALUE io, VALUE buffer, size_t leng
 }
 
 VALUE
+rb_fiber_scheduler_io_pwrite(VALUE scheduler, VALUE io, VALUE buffer, size_t length, off_t offset)
+{
+    VALUE arguments[] = {
+        io, buffer, SIZET2NUM(length), OFFT2NUM(offset)
+    };
+
+    return rb_check_funcall(scheduler, id_io_pwrite, 4, arguments);
+}
+
+VALUE
 rb_fiber_scheduler_io_read_memory(VALUE scheduler, VALUE io, void *base, size_t size, size_t length)
 {
     VALUE buffer = rb_io_buffer_new(base, size, RB_IO_BUFFER_LOCKED);