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authorC.J. Collier <cjcollier@linuxfoundation.org>2016-06-14 07:54:47 -0700
committerC.J. Collier <cjcollier@linuxfoundation.org>2016-06-14 07:55:43 -0700
commit5129044dce1f85ce4950f31bcf90f3886466f06a (patch)
tree1c6269614c0c15ffef8451c58ae8f8b30a1bc804 /lib/librte_vhost/vhost_user/fd_man.h
parente04be89c2409570e0055b2cda60bd11395bb93b0 (diff)
Imported upstream release 16.04
* gbp import-orig ../dpdk-16.04.tar.xz Change-Id: Iac2196db782ba322f6974d8a752acc34ce5024c3 Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>
Diffstat (limited to 'lib/librte_vhost/vhost_user/fd_man.h')
-rw-r--r--lib/librte_vhost/vhost_user/fd_man.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/lib/librte_vhost/vhost_user/fd_man.h b/lib/librte_vhost/vhost_user/fd_man.h
new file mode 100644
index 00000000..74ecde2c
--- /dev/null
+++ b/lib/librte_vhost/vhost_user/fd_man.h
@@ -0,0 +1,67 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _FD_MAN_H_
+#define _FD_MAN_H_
+#include <stdint.h>
+#include <pthread.h>
+
+#define MAX_FDS 1024
+
+typedef void (*fd_cb)(int fd, void *dat, int *remove);
+
+struct fdentry {
+ int fd; /* -1 indicates this entry is empty */
+ fd_cb rcb; /* callback when this fd is readable. */
+ fd_cb wcb; /* callback when this fd is writeable.*/
+ void *dat; /* fd context */
+ int busy; /* whether this entry is being used in cb. */
+};
+
+struct fdset {
+ struct fdentry fd[MAX_FDS];
+ pthread_mutex_t fd_mutex;
+ int num; /* current fd number of this fdset */
+};
+
+
+void fdset_init(struct fdset *pfdset);
+
+int fdset_add(struct fdset *pfdset, int fd,
+ fd_cb rcb, fd_cb wcb, void *dat);
+
+void fdset_del(struct fdset *pfdset, int fd);
+
+void fdset_event_dispatch(struct fdset *pfdset);
+
+#endif