#include <unistd.h>
#include <string.h>
#include <dlfcn.h>
+
#include "fio.h"
#include "os.h"
+static int check_engine_ops(struct ioengine_ops *ops)
+{
+ /*
+ * cpu thread doesn't need to provide anything
+ */
+ if (ops->flags & FIO_CPUIO)
+ return 0;
+
+ if (!ops->event) {
+ log_err("%s: no event handler)\n", ops->name);
+ return 1;
+ }
+ if (!ops->getevents) {
+ log_err("%s: no getevents handler)\n", ops->name);
+ return 1;
+ }
+ if (!ops->queue) {
+ log_err("%s: no queue handler)\n", ops->name);
+ return 1;
+ }
+
+ return 0;
+}
+
struct ioengine_ops *load_ioengine(struct thread_data *td, char *name)
{
char engine[16], engine_lib[256];
return NULL;
}
+ /*
+ * Check that the required methods are there.
+ */
+ if (check_engine_ops(ops)) {
+ dlclose(dlhandle);
+ return NULL;
+ }
+
ret = malloc(sizeof(*ret));
memcpy(ret, ops, sizeof(*ret));
ret->data = NULL;
int td_io_sync(struct thread_data *td, struct fio_file *f)
{
- if (td->io_ops->sync)
- return td->io_ops->sync(td, f);
+ struct io_u *io_u = __get_io_u(td);
+ struct io_completion_data icd;
+ int ret;
+
+ if (!io_u)
+ return 1;
+
+ io_u->ddir = DDIR_SYNC;
+ io_u->file = f;
+
+ if (td_io_prep(td, io_u)) {
+ put_io_u(td, io_u);
+ return 1;
+ }
+
+ ret = td_io_queue(td, io_u);
+ if (ret) {
+ put_io_u(td, io_u);
+ td_verror(td, ret);
+ return 1;
+ }
+
+ ret = td_io_getevents(td, 1, td->cur_depth, NULL);
+ if (ret < 0) {
+ td_verror(td, -ret);
+ return 1;
+ }
+
+ icd.nr = ret;
+ ios_completed(td, &icd);
+ if (icd.error) {
+ td_verror(td, icd.error);
+ return 1;
+ }
return 0;
}
return td->io_ops->queue(td, io_u);
}
+
+int td_io_init(struct thread_data *td)
+{
+ if (td->io_ops->init)
+ return td->io_ops->init(td);
+
+ return 0;
+}