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https://github.com/checkpoint-restore/criu.git
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d448a75ec7
Make it in two stages. First -- collect pipe data into hash without checking for pipe/fifo existance. Next -- when pipe/fifo gets restored walk the hash and search where the pipe data is. Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
30 lines
816 B
C
30 lines
816 B
C
#ifndef __CR_PIPES_H__
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#define __CR_PIPES_H__
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extern int collect_pipes(void);
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extern void mark_pipe_master(void);
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int dump_pipe(struct fd_parms *p, int lfd,
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const struct cr_fdset *cr_fdset);
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#define NR_PIPES_WITH_DATA 1024
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struct pipe_data_dump {
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int img_type;
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unsigned int nr;
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u32 ids[NR_PIPES_WITH_DATA];
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};
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extern int dump_one_pipe_data(struct pipe_data_dump *pd, int lfd, const struct fd_parms *p);
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struct pipe_data_rst {
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struct pipe_data_entry pde;
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struct pipe_data_rst *next;
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};
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#define PIPE_DATA_HASH_BITS 5
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#define PIPE_DATA_HASH_SIZE (1 << PIPE_DATA_HASH_BITS)
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#define PIPE_DATA_HASH_MASK (PIPE_DATA_HASH_SIZE - 1)
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extern int collect_pipe_data(int img_type, struct pipe_data_rst **hash);
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extern int restore_pipe_data(int img_type, int pfd, u32 id, struct pipe_data_rst **hash);
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#endif
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