Add ->done variable to force exit when we know we are done

[fio.git] / ioengines.c

diff --git a/ioengines.c b/ioengines.c
index 14b15ccd7468e6646a03b962095a97fb55cff74a..76e71b9ee4ef1e6cf3c2c23ebc8d036c8d98b04e 100644 (file)
--- a/ioengines.c
+++ b/ioengines.c
@@ -17,7 +17,6 @@
 #include <assert.h>
 
 #include "fio.h"
-#include "os.h"
 
 static LIST_HEAD(engine_list);
 
@@ -28,12 +27,6 @@ static int check_engine_ops(struct ioengine_ops *ops)
                return 1;
        }
 
-       /*
-        * cpu thread doesn't need to provide anything
-        */
-       if (ops->flags & FIO_CPUIO)
-               return 0;
-
        if (!ops->queue) {
                log_err("%s: no queue handler\n", ops->name);
                return 1;
@@ -77,16 +70,10 @@ static struct ioengine_ops *find_ioengine(const char *name)
 {
        struct ioengine_ops *ops;
        struct list_head *entry;
-       char engine[16];
-
-       strncpy(engine, name, sizeof(engine) - 1);
-
-       if (!strncmp(engine, "linuxaio", 8) || !strncmp(engine, "aio", 3))
-               strcpy(engine, "libaio");
 
        list_for_each(entry, &engine_list) {
                ops = list_entry(entry, struct ioengine_ops, list);
-               if (!strcmp(engine, ops->name))
+               if (!strcmp(name, ops->name))
                        return ops;
        }
 
@@ -164,10 +151,7 @@ void close_ioengine(struct thread_data *td)
        if (td->io_ops->dlhandle)
                dlclose(td->io_ops->dlhandle);
 
-#if 0
-       /* we can't do this for threads, so just leak it, it's exiting */
        free(td->io_ops);
-#endif
        td->io_ops = NULL;
 }
 
@@ -201,8 +185,14 @@ int td_io_queue(struct thread_data *td, struct io_u *io_u)
        assert((io_u->flags & IO_U_F_FLIGHT) == 0);
        io_u->flags |= IO_U_F_FLIGHT;
 
+       assert(io_u->file->flags & FIO_FILE_OPEN);
+
+       io_u->error = 0;
+       io_u->resid = 0;
+
        if (td->io_ops->flags & FIO_SYNCIO) {
                fio_gettime(&io_u->issue_time, NULL);
+               memcpy(&td->last_issue, &io_u->issue_time, sizeof(struct timeval));
 
                /*
                 * for a sync engine, set the timeout upfront
@@ -214,13 +204,15 @@ int td_io_queue(struct thread_data *td, struct io_u *io_u)
        if (io_u->ddir != DDIR_SYNC)
                td->io_issues[io_u->ddir]++;
 
+       io_u_mark_depth(td, io_u);
+
        ret = td->io_ops->queue(td, io_u);
 
        if (ret == FIO_Q_QUEUED) {
                int r;
 
                td->io_u_queued++;
-               if (td->io_u_queued > td->iodepth_batch) {
+               if (td->io_u_queued > td->o.iodepth_batch) {
                        r = td_io_commit(td);
                        if (r < 0)
                                return r;
@@ -229,6 +221,7 @@ int td_io_queue(struct thread_data *td, struct io_u *io_u)
 
        if ((td->io_ops->flags & FIO_SYNCIO) == 0) {
                fio_gettime(&io_u->issue_time, NULL);
+               memcpy(&td->last_issue, &io_u->issue_time, sizeof(struct timeval));
 
                /*
                 * async engine, set the timeout here
@@ -243,10 +236,15 @@ int td_io_queue(struct thread_data *td, struct io_u *io_u)
 
 int td_io_init(struct thread_data *td)
 {
-       if (td->io_ops->init)
-               return td->io_ops->init(td);
+       int ret = 0;
 
-       return 0;
+       if (td->io_ops->init) {
+               ret = td->io_ops->init(td);
+               if (ret && td->o.iodepth > 1)
+                       log_err("fio: io engine init failed. Perhaps try reducing io dpeth?\n");
+       }
+
+       return ret;
 }
 
 int td_io_commit(struct thread_data *td)
@@ -260,3 +258,76 @@ int td_io_commit(struct thread_data *td)
 
        return 0;
 }
+
+int td_io_open_file(struct thread_data *td, struct fio_file *f)
+{
+       if (td->io_ops->open_file(td, f)) {
+               if (td->error == EINVAL && td->o.odirect)
+                       log_err("fio: destination does not support O_DIRECT\n");
+               if (td->error == EMFILE)
+                       log_err("fio: try reducing/setting openfiles (failed at %u of %u)\n", td->nr_open_files, td->o.nr_files);
+
+               return 1;
+       }
+
+       if (f->filetype == FIO_TYPE_PIPE) {
+               if (td_random(td)) {
+                       log_err("fio: can't seek on pipes (no random io)\n");
+                       goto err;
+               }
+       }
+
+       f->last_free_lookup = 0;
+       f->last_completed_pos = 0;
+       f->last_pos = 0;
+       f->flags |= FIO_FILE_OPEN;
+       f->flags &= ~FIO_FILE_CLOSING;
+
+       if (td->io_ops->flags & FIO_DISKLESSIO)
+               goto done;
+
+       if (td->o.invalidate_cache && file_invalidate_cache(td, f))
+               goto err;
+
+       if (td->o.fadvise_hint &&
+           (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_FILE)) {
+               
+               int flags;
+
+               if (td_random(td))
+                       flags = POSIX_FADV_RANDOM;
+               else
+                       flags = POSIX_FADV_SEQUENTIAL;
+
+               if (fadvise(f->fd, f->file_offset, f->io_size, flags) < 0) {
+                       td_verror(td, errno, "fadvise");
+                       goto err;
+               }
+       }
+
+       if (f->file_map)
+               memset(f->file_map, 0, f->num_maps * sizeof(long));
+
+done:
+       log_file(td, f, FIO_LOG_OPEN_FILE);
+       td->nr_open_files++;
+       get_file(f);
+       return 0;
+err:
+       if (td->io_ops->close_file)
+               td->io_ops->close_file(td, f);
+       return 1;
+}
+
+void td_io_close_file(struct thread_data *td, struct fio_file *f)
+{
+       if (!(f->flags & FIO_FILE_CLOSING))
+               log_file(td, f, FIO_LOG_CLOSE_FILE);
+
+       /*
+        * mark as closing, do real close when last io on it has completed
+        */
+       f->flags |= FIO_FILE_CLOSING;
+
+       put_file(td, f);
+}