2893ddd598
The purpose of virtio-9p-test is to test the virtio-9p device, especially the 9p server state machine. We don't really care what fsdev backend we're using. Moreover, if we want to be able to test the flush request or a device reset with in-flights I/O, it is close to impossible to achieve with a physical backend because we cannot ask it reliably to put an I/O on hold at a specific point in time. Fortunately, we can do that with the synthetic backend, which allows to register callbacks on read/write accesses to a specific file. This will be used by a later patch to test the 9P flush request. The walk request test is converted to using the synth backend. Signed-off-by: Greg Kurz <groug@kaod.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/*
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* 9p
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*
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* Copyright IBM, Corp. 2011
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*
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* Authors:
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* Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#ifndef QEMU_9P_SYNTH_H
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#define QEMU_9P_SYNTH_H
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typedef struct V9fsSynthNode V9fsSynthNode;
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typedef ssize_t (*v9fs_synth_read)(void *buf, int len, off_t offset,
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void *arg);
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typedef ssize_t (*v9fs_synth_write)(void *buf, int len, off_t offset,
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void *arg);
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typedef struct V9fsSynthNodeAttr {
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int mode;
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int inode;
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int nlink;
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v9fs_synth_read read;
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v9fs_synth_write write;
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} V9fsSynthNodeAttr;
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struct V9fsSynthNode {
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QLIST_HEAD(, V9fsSynthNode) child;
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QLIST_ENTRY(V9fsSynthNode) sibling;
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char name[NAME_MAX];
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V9fsSynthNodeAttr *attr;
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V9fsSynthNodeAttr actual_attr;
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void *private;
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int open_count;
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};
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typedef struct V9fsSynthOpenState {
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off_t offset;
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V9fsSynthNode *node;
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struct dirent dent;
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} V9fsSynthOpenState;
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int qemu_v9fs_synth_mkdir(V9fsSynthNode *parent, int mode,
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const char *name, V9fsSynthNode **result);
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int qemu_v9fs_synth_add_file(V9fsSynthNode *parent, int mode,
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const char *name, v9fs_synth_read read,
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v9fs_synth_write write, void *arg);
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/* qtest stuff */
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#define QTEST_V9FS_SYNTH_WALK_FILE "WALK%d"
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#endif
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