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https://github.com/checkpoint-restore/criu.git
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87a49bdfaf
It's already used for dumping files and it will be used for restoring, so it should be service fd to avoid intersection with restored descriptors. Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
33 lines
869 B
C
33 lines
869 B
C
#ifndef __CR_SERVICE_FD_H__
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#define __CR_SERVICE_FD_H__
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#include <stdbool.h>
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enum sfd_type {
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SERVICE_FD_MIN,
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LOG_FD_OFF,
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IMG_FD_OFF,
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PROC_FD_OFF, /* fd with /proc for all proc_ calls */
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CTL_TTY_OFF,
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SELF_STDIN_OFF,
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CR_PROC_FD_OFF, /* some other's proc fd.
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* For dump -- target ns' proc
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* For restore -- CRIU ns' proc
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*/
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ROOT_FD_OFF, /* Root of the namespace we dump/restore */
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SERVICE_FD_MAX
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};
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extern int clone_service_fd(int id);
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extern int init_service_fd(void);
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extern int get_service_fd(enum sfd_type type);
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extern int reserve_service_fd(enum sfd_type type);
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extern int install_service_fd(enum sfd_type type, int fd);
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extern int close_service_fd(enum sfd_type type);
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extern void close_old_servie_fd(int nr);
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extern bool is_service_fd(int fd, enum sfd_type type);
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extern bool is_any_service_fd(int fd);
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#endif /* __CR_SERVICE_FD_H__ */
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