#include <unistd.h>
#include <string.h>
#include <dlfcn.h>
+
#include "fio.h"
#include "os.h"
-struct ioengine_ops *load_ioengine(struct thread_data *td, char *name)
+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, const char *name)
{
char engine[16], engine_lib[256];
struct ioengine_ops *ops, *ret;
void *dlhandle;
- strcpy(engine, name);
+ strncpy(engine, name, sizeof(engine) - 1);
/*
* linux libaio has alias names, so convert to what we want
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;
free(td->io_ops);
td->io_ops = NULL;
}
+
+int td_io_prep(struct thread_data *td, struct io_u *io_u)
+{
+ if (td->io_ops->prep && td->io_ops->prep(td, io_u))
+ return 1;
+
+ return 0;
+}
+
+int td_io_getevents(struct thread_data *td, int min, int max,
+ struct timespec *t)
+{
+ return td->io_ops->getevents(td, min, max, t);
+}
+
+int td_io_queue(struct thread_data *td, struct io_u *io_u)
+{
+ gettimeofday(&io_u->issue_time, NULL);
+
+ 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;
+}