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mjw@wray-m-3.hpl.hp.com
4ab333591a
Integrating save/migrate handling with xfrd. Add suspend callback to save.
59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
#ifndef __XC_XC_IO_H__
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#define __XC_XC_IO_H__
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#include <errno.h>
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#include "xc_private.h"
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#include "iostream.h"
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typedef struct XcIOContext {
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u32 domain;
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unsigned flags;
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IOStream *io;
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IOStream *info;
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IOStream *err;
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char *vmconfig;
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int vmconfig_n;
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int (*suspend)(u32 domain, void *data);
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void *data;
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} XcIOContext;
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static inline int xcio_suspend_domain(XcIOContext *ctxt){
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int err = 0;
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if(ctxt->suspend){
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err = ctxt->suspend(ctxt->domain, ctxt->data);
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} else {
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err = -EINVAL;
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}
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return err;
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}
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static inline int xcio_read(XcIOContext *ctxt, void *buf, int n){
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int rc;
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rc = IOStream_read(ctxt->io, buf, n);
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return (rc == n ? 0 : rc);
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}
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static inline int xcio_write(XcIOContext *ctxt, void *buf, int n){
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int rc;
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rc = IOStream_write(ctxt->io, buf, n);
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return (rc == n ? 0 : rc);
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}
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static inline int xcio_flush(XcIOContext *ctxt){
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return IOStream_flush(ctxt->io);
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}
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extern void xcio_error(XcIOContext *ctxt, const char *msg, ...);
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extern void xcio_info(XcIOContext *ctxt, const char *msg, ...);
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#define xcio_perror(_ctxt, _msg...) \
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xcio_error(_ctxt, "(errno %d %s)" _msg, errno, strerror(errno), ## _msg)
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#endif /* ! __XC_XC_IO_H__ */
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