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https://github.com/checkpoint-restore/criu.git
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199e8d8248
While we try to seize task it can die and give its pid to somebody else. This can break pstree consistency. Check for parent being valid after task is seized. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
86 lines
2 KiB
C
86 lines
2 KiB
C
#ifndef PROC_PARSE_H__
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#define PROC_PARSE_H__
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#define PROC_TASK_COMM_LEN 32
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#define PROC_TASK_COMM_LEN_FMT "(%31s"
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struct proc_pid_stat_small {
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int pid;
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char comm[PROC_TASK_COMM_LEN];
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char state;
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int ppid;
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};
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struct proc_pid_stat {
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int pid;
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char comm[PROC_TASK_COMM_LEN];
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char state;
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int ppid;
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int pgid;
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int sid;
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int tty_nr;
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int tty_pgrp;
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unsigned int flags;
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unsigned long min_flt;
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unsigned long cmin_flt;
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unsigned long maj_flt;
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unsigned long cmaj_flt;
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unsigned long utime;
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unsigned long stime;
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long cutime;
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long cstime;
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long priority;
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long nice;
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int num_threads;
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int zero0;
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unsigned long long start_time;
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unsigned long vsize;
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long mm_rss;
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unsigned long rsslim;
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unsigned long start_code;
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unsigned long end_code;
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unsigned long start_stack;
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unsigned long esp;
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unsigned long eip;
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unsigned long sig_pending;
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unsigned long sig_blocked;
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unsigned long sig_ignored;
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unsigned long sig_handled;
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unsigned long wchan;
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unsigned long zero1;
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unsigned long zero2;
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int exit_signal;
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int task_cpu;
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unsigned int rt_priority;
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unsigned int policy;
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unsigned long long delayacct_blkio_ticks;
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unsigned long gtime;
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long cgtime;
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unsigned long start_data;
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unsigned long end_data;
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unsigned long start_brk;
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unsigned long arg_start;
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unsigned long arg_end;
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unsigned long env_start;
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unsigned long env_end;
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int exit_code;
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};
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#define PROC_CAP_SIZE 2
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struct proc_status_creds {
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unsigned int uids[4];
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unsigned int gids[4];
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unsigned int cap_inh[PROC_CAP_SIZE];
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unsigned int cap_prm[PROC_CAP_SIZE];
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unsigned int cap_eff[PROC_CAP_SIZE];
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unsigned int cap_bnd[PROC_CAP_SIZE];
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};
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extern int parse_pid_stat(pid_t pid, struct proc_pid_stat *s);
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extern int parse_pid_stat_small(pid_t pid, struct proc_pid_stat_small *s);
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extern int parse_maps(pid_t pid, struct list_head *vma_area_list, bool use_map_files);
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extern int parse_pid_status(pid_t pid, struct proc_status_creds *);
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#endif /* PROC_PARSE_H__ */
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