diff options
Diffstat (limited to 'libps')
| -rw-r--r-- | libps/ps.h | 70 |
1 files changed, 47 insertions, 23 deletions
@@ -265,8 +265,7 @@ struct proc_stat /* A ps_tty_t object for the process's controlling terminal. */ ps_tty_t tty; }; - - + /* Proc_stat flag bits; each bit is set in the FLAGS field if that information is currently valid. */ #define PSTAT_PID 0x0001 /* Process ID */ @@ -293,33 +292,58 @@ struct proc_stat /* Flag bits that don't correspond precisely to any field. */ #define PSTAT_NO_MSGPORT 0x100000 /* Don't use the msgport at all */ - + /* If the PSTAT_STATE flag is set, then the proc_stat's state field holds a - bitmask of the following bits, describing the process's run state. */ -#define PSTAT_STATE_RUNNING 0x0001 /* R */ -#define PSTAT_STATE_STOPPED 0x0002 /* T stopped (e.g., by ^Z) */ -#define PSTAT_STATE_HALTED 0x0004 /* H */ -#define PSTAT_STATE_WAIT 0x0008 /* D short term (uninterruptable) wait */ -#define PSTAT_STATE_SLEEPING 0x0010 /* S sleeping */ -#define PSTAT_STATE_IDLE 0x0020 /* I idle (sleeping > 20 seconds) */ -#define PSTAT_STATE_SWAPPED 0x0040 /* W */ -#define PSTAT_STATE_NICED 0X0080 /* N lowered priority */ -#define PSTAT_STATE_PRIORITY 0x0100 /* < raised priority */ -#define PSTAT_STATE_ZOMBIE 0x0200 /* Z process exited but not yet reaped */ -#define PSTAT_STATE_FG 0x0400 /* + in foreground process group */ -#define PSTAT_STATE_SESSLDR 0x0800 /* s session leader */ -#define PSTAT_STATE_FORKED 0x1000 /* f has forked and not execed */ -#define PSTAT_STATE_NOMSG 0x2000 /* m no msg port */ -#define PSTAT_STATE_NOPARENT 0x4000 /* p no parent */ -#define PSTAT_STATE_ORPHANED 0x8000 /* o orphaned */ -#define PSTAT_STATE_TRACED 0x10000 /* x traced */ + bitmask of the following bits, describing the process's run state. If you + change the value of these, you must change proc_stat_state_tags as well! */ + +/* Process global state. */ + +/* Mutually exclusive bits, each of which is a possible process `state'. */ +#define PSTAT_STATE_P_STOP 0x0001 /* T stopped (e.g., by ^Z) */ +#define PSTAT_STATE_P_ZOMBIE 0x0002 /* Z process exited but not reaped */ + +#define PSTAT_STATE_P_STATES (PSTAT_STATE_P_STOP | PSTAT_STATE_P_ZOMBIE) +/* Independent bits describing additional attributes of the process. */ +#define PSTAT_STATE_P_FG 0x0400 /* + in foreground process group */ +#define PSTAT_STATE_P_SESSLDR 0x0800 /* s session leader */ +#define PSTAT_STATE_P_FORKED 0x1000 /* f has forked and not execed */ +#define PSTAT_STATE_P_NOMSG 0x2000 /* m no msg port */ +#define PSTAT_STATE_P_NOPARENT 0x4000 /* p no parent */ +#define PSTAT_STATE_P_ORPHAN 0x8000 /* o orphaned */ +#define PSTAT_STATE_P_TRACE 0x10000 /* x traced */ + +#define PSTAT_STATE_P_ATTRS (PSTAT_STATE_P_NOPARENT | PSTAT_STATE_P_TRACE \ + | PSTAT_STATE_P_NOMSG | PSTAT_STATE_P_FG \ + | PSTAT_STATE_P_ORPHAN | PSTAT_STATE_P_FORKED) + +/* Per-thread state; in a process, these represent the union of its threads. */ + +/* Mutually exclusive bits, each of which is a possible thread `state'. */ +#define PSTAT_STATE_T_RUN 0x0004 /* R thread is running */ +#define PSTAT_STATE_T_HALT 0x0008 /* H thread is halted */ +#define PSTAT_STATE_T_WAIT 0x0010 /* D uninterruptable wait */ +#define PSTAT_STATE_T_SLEEP 0x0020 /* S sleeping */ +#define PSTAT_STATE_T_IDLE 0x0040 /* I idle (sleeping > 20 seconds) */ + +#define PSTAT_STATE_T_STATES (PSTAT_STATE_T_RUN | PSTAT_STATE_T_HALT \ + | PSTAT_STATE_T_WAIT | PSTAT_STATE_T_SLEEP \ + | PSTAT_STATE_T_IDLE) + +/* Independent bits describing additional attributes of the thread. */ +#define PSTAT_STATE_T_NICE 0x0080 /* N lowered priority */ +#define PSTAT_STATE_T_NASTY 0x0100 /* < raised priority */ +#define PSTAT_STATE_T_UNCLEAN 0x0200 /* u thread is uncleanly halted */ + +#define PSTAT_STATE_T_ATTRS (PSTAT_STATE_T_UNCLEAN \ + | PSTAT_STATE_T_NICE | PSTAT_STATE_T_NASTY) /* This is a constant string holding a single character for each possible bit in a proc_stat's STATE field, in order from bit zero. These are intended - for printint a user-readable summary of a process's state. */ + for printing a user-readable summary of a process's state. */ char *proc_stat_state_tags; - + /* Process info accessor functions. |