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kfraser@localhost.localdomain
d0ed0b289c
of their parent. This is required now that the interface fd is marked for close-on-exec. Signed-off-by: Keir Fraser <keir@xensource.com>
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General
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* Public License. See the file "COPYING" in the main directory of
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* this archive for more details.
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*
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* Copyright (C) 2005 by Christian Limpach
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*
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*/
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#include <err.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdio.h>
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#include <xenctrl.h>
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#include <xenguest.h>
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/**
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* Issue a suspend request through stdout, and receive the acknowledgement
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* from stdin. This is handled by XendCheckpoint in the Python layer.
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*/
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static int suspend(int domid)
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{
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char ans[30];
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printf("suspend\n");
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fflush(stdout);
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return (fgets(ans, sizeof(ans), stdin) != NULL &&
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!strncmp(ans, "done\n", 5));
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}
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int
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main(int argc, char **argv)
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{
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unsigned int xc_fd, io_fd, domid, maxit, max_f, flags;
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int ret;
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if (argc != 6)
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errx(1, "usage: %s iofd domid maxit maxf flags", argv[0]);
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xc_fd = xc_interface_open();
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if (xc_fd < 0)
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errx(1, "failed to open control interface");
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io_fd = atoi(argv[1]);
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domid = atoi(argv[2]);
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maxit = atoi(argv[3]);
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max_f = atoi(argv[4]);
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flags = atoi(argv[5]);
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ret = xc_linux_save(xc_fd, io_fd, domid, maxit, max_f, flags, &suspend);
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xc_interface_close(xc_fd);
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return ret;
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}
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