@@ -48,60 +48,67 @@ enum class task_state
4848 idle,
4949};
5050
51+ // Note: Stat member types changed throughout history.
52+ // The library currently uses types that match the latest kernel version,
53+ // and can contain all past ones. For example, session is a 'long long'
54+ // in kernel 6.9, and past values, such as the 'int' type used by 2.6.32,
55+ // can easily be supported without recompilation.
56+ // Since most types are 64-bit integers, these are both backward and forward
57+ // compatible.
5158struct task_stat
5259{
53- pid_t pid = INVALID_PID;
60+ pid_t pid = INVALID_PID;
5461 std::string comm;
55- task_state state = task_state::idle;
56- pid_t ppid = INVALID_PID;
57- pid_t pgrp = INVALID_PID;
58- int session = 0 ;
59- int tty_nr = 0 ;
60- pid_t tgpid = INVALID_PID;
61- unsigned flags = 0 ;
62- unsigned long minflt = 0 ;
63- unsigned long cminflt = 0 ;
64- unsigned long majflt = 0 ;
65- unsigned long cmajflt = 0 ;
66- unsigned long utime = 0 ;
67- unsigned long stime = 0 ;
68- long cutime = 0 ;
69- long cstime = 0 ;
70- long priority = 0 ;
71- long nice = 0 ;
72- long num_threads = 0 ;
73- long itrealvalue = 0 ;
74- unsigned long long starttime = 0 ;
75- unsigned long vsize = 0 ; // In bytes
76- long rss = 0 ; // In pages
77- unsigned long rsslim = 0 ;
78- unsigned long startcode = 0 ; // Affected by ptrace access mode
79- unsigned long endcode = 0 ; // Affected by ptrace access mode
80- unsigned long startstack = 0 ; // Affected by ptrace access mode
81- unsigned long kstkesp = 0 ; // Affected by ptrace access mode
82- unsigned long kstkeip = 0 ; // Affected by ptrace access mode
83- unsigned long signal = 0 ;
84- unsigned long blocked = 0 ;
85- unsigned long sigignore = 0 ;
86- unsigned long sigcatch = 0 ;
87- unsigned long wchan = 0 ; // Affected by ptrace access mode
88- unsigned long nswap = 0 ;
89- unsigned long cnswap = 0 ;
90- int exit_signal = 0 ; // Since 2.1.22
91- int processor = 0 ; // Since 2.2.8
92- unsigned rt_priority = 0 ; // Since 2.5.19
93- unsigned policy = 0 ; // Since 2.5.19
62+ task_state state = task_state::idle;
63+ pid_t ppid = INVALID_PID;
64+ pid_t pgrp = INVALID_PID;
65+ long long session = 0 ;
66+ long long tty_nr = 0 ;
67+ pid_t tgpid = INVALID_PID;
68+ unsigned long long flags = 0 ;
69+ unsigned long long minflt = 0 ;
70+ unsigned long long cminflt = 0 ;
71+ unsigned long long majflt = 0 ;
72+ unsigned long long cmajflt = 0 ;
73+ unsigned long long utime = 0 ;
74+ unsigned long long stime = 0 ;
75+ long long cutime = 0 ;
76+ long long cstime = 0 ;
77+ long long priority = 0 ;
78+ long long nice = 0 ;
79+ long long num_threads = 0 ;
80+ unsigned long long itrealvalue = 0 ;
81+ unsigned long long starttime = 0 ;
82+ unsigned long long vsize = 0 ; // In bytes
83+ unsigned long long rss = 0 ; // In pages
84+ unsigned long long rsslim = 0 ;
85+ unsigned long long startcode = 0 ; // Affected by ptrace access mode
86+ unsigned long long endcode = 0 ; // Affected by ptrace access mode
87+ unsigned long long startstack = 0 ; // Affected by ptrace access mode
88+ unsigned long long kstkesp = 0 ; // Affected by ptrace access mode
89+ unsigned long long kstkeip = 0 ; // Affected by ptrace access mode
90+ unsigned long long signal = 0 ;
91+ unsigned long long blocked = 0 ;
92+ unsigned long long sigignore = 0 ;
93+ unsigned long long sigcatch = 0 ;
94+ unsigned long long wchan = 0 ; // Affected by ptrace access mode
95+ unsigned long long nswap = 0 ;
96+ unsigned long long cnswap = 0 ;
97+ long long exit_signal = 0 ; // Since 2.1.22
98+ long long processor = 0 ; // Since 2.2.8
99+ unsigned long long rt_priority = 0 ; // Since 2.5.19
100+ unsigned long long policy = 0 ; // Since 2.5.19
94101 unsigned long long delayacct_blkio_ticks = 0 ; // Since 2.6.18
95- unsigned long guest_time = 0 ; // Since 2.6.24
96- long cguest_time = 0 ; // Since 2.6.24
97- unsigned long start_data = 0 ; // Since 3.3, Affected by ptrace access mode
98- unsigned long end_data = 0 ; // Since 3.3, Affected by ptrace access mode
99- unsigned long start_brk = 0 ; // Since 3.3, Affected by ptrace access mode
100- unsigned long arg_start = 0 ; // Since 3.5, Affected by ptrace access mode
101- unsigned long arg_end = 0 ; // Since 3.5, Affected by ptrace access mode
102- unsigned long env_start = 0 ; // Since 3.5, Affected by ptrace access mode
103- unsigned long env_end = 0 ; // Since 3.5, Affected by ptrace access mode
104- unsigned long exit_code = 0 ; // Since 3.5, Affected by ptrace access mode
102+ unsigned long long guest_time = 0 ; // Since 2.6.24
103+ long long cguest_time = 0 ; // Since 2.6.24
104+ unsigned long long start_data = 0 ; // Since 3.3, Affected by ptrace access mode
105+ unsigned long long end_data = 0 ; // Since 3.3, Affected by ptrace access mode
106+ unsigned long long start_brk = 0 ; // Since 3.3, Affected by ptrace access mode
107+ unsigned long long arg_start = 0 ; // Since 3.5, Affected by ptrace access mode
108+ unsigned long long arg_end = 0 ; // Since 3.5, Affected by ptrace access mode
109+ unsigned long long env_start = 0 ; // Since 3.5, Affected by ptrace access mode
110+ unsigned long long env_end = 0 ; // Since 3.5, Affected by ptrace access mode
111+ unsigned long long exit_code = 0 ; // Since 3.5, Affected by ptrace access mode
105112};
106113
107114struct io_stats {
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