top.h

linux下获取一些环境信息的代码

#define Show_CMDLIN  0x0080     // 'c' - show cmdline vs. name
#define Show_CTIMES  0x0040     // 'S' - show times as cumulative
#define Show_IDLEPS  0x0020     // 'i' - show idle processes (all tasks)
#define Qsrt_NORMAL  0x0010     // 'R' - reversed column sort (high to low)

// these flag(s) have no command as such - they're for internal use
#define VISIBLE_tsk  0x0008     // tasks are showable when in 'Mode_altscr'
#define NEWFRAM_cwo  0x0004     // new frame (if anyone cares) - in Curwin
#define EQUWINS_cwo  0x0002     // rebalance tasks next frame (off 'i'/ 'n')
                                // ...set in Curwin, but impacts all windows

// Current-window-only flags -- always turned off at end-of-window!
#define FLGSOFF_cwo  EQUWINS_cwo | NEWFRAM_cwo

// Default flags if there's no rcfile to provide user customizations
#define DEF_WINFLGS ( \
   View_LOADAV | View_STATES | View_CPUSUM | View_MEMORY | View_NOBOLD | \
   Show_HIBOLD | Show_HIROWS | Show_IDLEPS | Qsrt_NORMAL | \
   VISIBLE_tsk \
)

        // Used to test/manipulate the window flags
#define CHKw(q,f)   (int)((q)->rc.winflags & (f))
#define TOGw(q,f)   (q)->rc.winflags ^=  (f)
#define SETw(q,f)   (q)->rc.winflags |=  (f)
#define OFFw(q,f)   (q)->rc.winflags &= ~(f)
#define VIZCHKc     (!Rc.mode_altscr || Curwin->rc.winflags & VISIBLE_tsk) \
                        ? 1 : win_warn()
#define VIZTOGc(f)  (!Rc.mode_altscr || Curwin->rc.winflags & VISIBLE_tsk) \
                        ? TOGw(Curwin, f) : win_warn()

// This structure stores configurable information for each window.
// By expending a little effort in its creation and user requested
// maintainence, the only real additional per frame cost of having
// windows is an extra sort -- but that's just on ptrs!
typedef struct WIN_t {
   struct WIN_t *next,                  // next window in window stack
                *prev;                  // prior window in window stack
   char       *captab [CAPTABMAX];      // captab needed by show_special
   int         winnum,                  // window's num (array pos + 1)
               winlines;                // task window's rows (volatile)
   FLG_t       procflags [PFLAGSSIZ];   // fieldscur subset, as enum
   int         maxpflgs,        // number of procflags (upcase fieldscur)
               maxcmdln;        // max length of a process' command line
   int         len_rownorm,     // lengths of the corresponding terminfo
               len_rowhigh;     // strings to avoid repeated strlen calls
   RCW_t       rc;              // stuff that gets saved in the rcfile
   char        capclr_sum [CLRBUFSIZ],  // terminfo strings built from
               capclr_msg [CLRBUFSIZ],  //    above clrs (& rebuilt too),
               capclr_pmt [CLRBUFSIZ],  //    but NO recurring costs !!!
               capclr_hdr [CLRBUFSIZ],     // note: sum, msg and pmt strs
               capclr_rowhigh [CLRBUFSIZ], //    are only used when this
               capclr_rownorm [CLRBUFSIZ]; //    window is the 'Curwin'!
   char        cap_bold [CAPBUFSIZ];    // support for View_NOBOLD toggle
   char        grpname   [GRPNAMSIZ],   // window number:name, printable
               columnhdr [SCREENMAX],   // column headings for procflags
               colusrnam [USRNAMSIZ];   // if selected by the 'u' command
} WIN_t;


/*######  Display Support *Data*  ########################################*/

// Configuration files support
#define SYS_RCFILESPEC  "/etc/toprc"
#define RCF_EYECATCHER  "RCfile for "
#define RCF_DEPRECATED  "Id:a, "

// The default fields displayed and their order,
#define DEF_FIELDS  "AEHIOQTWKNMbcdfgjplrsuvyzX"
// Pre-configured field groupss
#define JOB_FIELDS  "ABcefgjlrstuvyzMKNHIWOPQDX"
#define MEM_FIELDS  "ANOPQRSTUVbcdefgjlmyzWHIKX"
#define USR_FIELDS  "ABDECGfhijlopqrstuvyzMKNWX"
// Used by fields_sort, placed here for peace-of-mind
#define NUL_FIELDS  "abcdefghijklmnopqrstuvwxyz"


// The default values for the local config file
#define DEF_RCFILE { \
   0, 1, DEF_DELAY, 0, { \
   { P_CPU, DEF_WINFLGS, 0, \
      COLOR_RED, COLOR_RED, COLOR_YELLOW, COLOR_RED, \
      "Def", DEF_FIELDS }, \
   { P_PID, DEF_WINFLGS, 0, \
      COLOR_CYAN, COLOR_CYAN, COLOR_WHITE, COLOR_CYAN, \
      "Job", JOB_FIELDS }, \
   { P_MEM, DEF_WINFLGS, 0, \
      COLOR_MAGENTA, COLOR_MAGENTA, COLOR_BLUE, COLOR_MAGENTA, \
      "Mem", MEM_FIELDS }, \
   { P_URE, DEF_WINFLGS, 0, \
      COLOR_YELLOW, COLOR_YELLOW, COLOR_GREEN, COLOR_YELLOW, \
      "Usr", USR_FIELDS } \
   } }


// Summary Lines specially formatted string(s) --
// see 'show_special' for syntax details + other cautions.
#define LOADAV_line  "%s -%s\n"
#define LOADAV_line_alt  "%s\06 -%s\n"
#define STATES_line1  "Tasks:\03" \
   " %3u \02total,\03 %3u \02running,\03 %3u \02sleeping,\03 %3u \02stopped,\03 %3u \02zombie\03\n"
#define STATES_line2x4  "%s\03" \
   " %#5.1f%% \02user,\03 %#5.1f%% \02system,\03 %#5.1f%% \02nice,\03 %#5.1f%% \02idle\03\n"
#define STATES_line2x5  "%s\03" \
   " %#5.1f%% \02user,\03 %#5.1f%% \02system,\03 %#5.1f%% \02nice,\03 %#5.1f%% \02idle,\03 %#5.1f%% \02IO-wait\03\n"
#define STATES_line2x6  "%s\03" \
   " %#4.1f%% \02us,\03 %#4.1f%% \02sy,\03 %#4.1f%% \02ni,\03 %#4.1f%% \02id,\03 %#4.1f%% \02wa,\03 %#4.1f%% \02hi,\03 %#4.1f%% \02si\03\n"
#define STATES_line2x7  "%s\03" \
   "%#5.1f%%\02us,\03%#5.1f%%\02sy,\03%#5.1f%%\02ni,\03%#5.1f%%\02id,\03%#5.1f%%\02wa,\03%#5.1f%%\02hi,\03%#5.1f%%\02si,\03%#5.1f%%\02st\03\n"
#ifdef CASEUP_SUMMK
#define MEMORY_line1  "Mem: \03" \
   " %8luK \02total,\03 %8luK \02used,\03 %8luK \02free,\03 %8luK \02buffers\03\n"
#define MEMORY_line2  "Swap:\03" \
   " %8luK \02total,\03 %8luK \02used,\03 %8luK \02free,\03 %8luK \02cached\03\n"
#else
#define MEMORY_line1  "Mem: \03" \
   " %8luk \02total,\03 %8luk \02used,\03 %8luk \02free,\03 %8luk \02buffers\03\n"
#define MEMORY_line2  "Swap:\03" \
   " %8luk \02total,\03 %8luk \02used,\03 %8luk \02free,\03 %8luk \02cached\03\n"
#endif

// Keyboard Help specially formatted string(s) --
// see 'show_special' for syntax details + other cautions.
#define KEYS_help \
   "Help for Interactive Commands\02 - %s\n" \
   "Window \01%s\06: \01Cumulative mode \03%s\02.  \01System\06: \01Delay \03%.1f secs\02; \01Secure mode \03%s\02.\n" \
   "\n" \
   "  Z\05,\01B\05       Global: '\01Z\02' change color mappings; '\01B\02' disable/enable bold\n" \
   "  l,t,m     Toggle Summaries: '\01l\02' load avg; '\01t\02' task/cpu stats; '\01m\02' mem info\n" \
   "  1,I       Toggle SMP view: '\0011\02' single/separate states; '\01I\02' Irix/Solaris mode\n" \
   "\n" \
   "  f,o     . Fields/Columns: '\01f\02' add or remove; '\01o\02' change display order\n" \
   "  F or O  . Select sort field\n" \
   "  <,>     . Move sort field: '\01<\02' next col left; '\01>\02' next col right\n" \
   "  R,H     . Toggle: '\01R\02' normal/reverse sort; '\01H\02' show threads\n" \
   "  c,i,S   . Toggle: '\01c\02' cmd name/line; '\01i\02' idle tasks; '\01S\02' cumulative time\n" \
   "  x\05,\01y\05     . Toggle highlights: '\01x\02' sort field; '\01y\02' running tasks\n" \
   "  z\05,\01b\05     . Toggle: '\01z\02' color/mono; '\01b\02' bold/reverse (only if 'x' or 'y')\n" \
   "  u       . Show specific user only\n" \
   "  n or #  . Set maximum tasks displayed\n" \
   "\n" \
   "%s" \
   "  W         Write configuration file\n" \
   "  q         Quit\n" \
   "          ( commands shown with '.' require a \01visible\02 task display \01window\02 ) \n" \
   "Press '\01h\02' or '\01?\02' for help with \01Windows\02,\n" \
   "any other key to continue " \
   ""

// This guy goes into the help text (maybe)
#define KEYS_help_unsecured \
   "  k,r       Manipulate tasks: '\01k\02' kill; '\01r\02' renice\n" \
   "  d or s    Set update interval\n" \
   ""

// Fields Reorder/Toggle specially formatted string(s) --
// see 'show_special' for syntax details + other cautions
// note: the leading newline below serves really dumb terminals;
//       if there's no 'cursor_home', the screen will be a mess
//       but this part will still be functional.
#define FIELDS_current \
   "\n%sCurrent Fields\02: \01 %s \04 for window \01%s\06\n%s " \
   ""

// Some extra explanatory text which accompanies the Fields display.
// note: the newlines cannot actually be used, they just serve as
// substring delimiters for the 'display_fields' routine.
#define FIELDS_xtra \
   "Flags field:\n" \
   "  0x00000001  PF_ALIGNWARN\n" \
   "  0x00000002  PF_STARTING\n" \
   "  0x00000004  PF_EXITING\n" \
   "  0x00000040  PF_FORKNOEXEC\n" \
   "  0x00000100  PF_SUPERPRIV\n" \
   "  0x00000200  PF_DUMPCORE\n" \
   "  0x00000400  PF_SIGNALED\n" \
   "  0x00000800  PF_MEMALLOC\n" \
   "  0x00002000  PF_FREE_PAGES (2.5)\n" \
   "  0x00008000  debug flag (2.5)\n" \
   "  0x00024000  special threads (2.5)\n" \
   "  0x001D0000  special states (2.5)\n" \
   "  0x00100000  PF_USEDFPU (thru 2.4)\n" \
   ""
/* no room, sacrificed this one:  'Killed for out-of-memory' */
/* "  0x00001000  PF_MEMDIE (2.5)\n" ....................... */

// Sort Select specially formatted string(s) --
// see 'show_special' for syntax details + other cautions
// note: the leading newline below serves really dumb terminals;
//       if there's no 'cursor_home', the screen will be a mess
//       but this part will still be functional.
#define SORT_fields \
   "\n%sCurrent Sort Field\02: \01 %c \04 for window \01%s\06\n%s " \
   ""

// Some extra explanatory text which accompanies the Sort display.
// note: the newlines cannot actually be used, they just serve as
//       substring delimiters for the 'display_fields' routine.
#define SORT_xtra \
   "Note1:\n" \
   "  If a selected sort field can't be\n" \
   "  shown due to screen width or your\n" \
   "  field order, the '<' and '>' keys\n" \
   "  will be unavailable until a field\n" \
   "  within viewable range is chosen.\n" \
   "\n" \
   "Note2:\n" \
   "  Field sorting uses internal values,\n" \
   "  not those in column display.  Thus,\n" \
   "  the TTY & WCHAN fields will violate\n" \
   "  strict ASCII collating sequence.\n" \
   "  (shame on you if WCHAN is chosen)\n" \
   ""

// Colors Help specially formatted string(s) --
// see 'show_special' for syntax details + other cautions.
#define COLOR_help \
   "Help for color mapping\02 - %s\n" \
   "current window: \01%s\06\n" \
   "\n" \
   "   color - 04:25:44 up 8 days, 50 min,  7 users,  load average:\n" \
   "   Tasks:\03  64 \02total,\03   2 \03running,\03  62 \02sleeping,\03   0 \02stopped,\03\n" \
   "   Cpu(s):\03  76.5%% \02user,\03  11.2%% \02system,\03   0.0%% \02nice,\03  12.3%% \02idle\03\n" \
   "   \01 Nasty Message! \04  -or-  \01Input Prompt\05\n" \
   "   \01  PID TTY     PR  NI %%CPU    TIME+   VIRT SWAP STA Command  \06\n" \
   "   17284 \10pts/2  \07  8   0  0.0   0:00.75  1380    0 S   /bin/bash \10\n" \
   "   \01 8601 pts/1    7 -10  0.4   0:00.03   916    0 R < color -b \07\n" \
   "   11005 \10?      \07  9   0  0.0   0:02.50  2852 1008 S   amor -ses \10\n" \
   "   available toggles: \01B\02 =disable bold globally (\01%s\02),\n" \
   "       \01z\02 =color/mono (\01%s\02), \01b\02 =tasks \"bold\"/reverse (\01%s\02)\n" \
   "\n" \
   "Select \01target\02 as upper case letter:\n" \
   "   S\02 = Summary Data,\01  M\02 = Messages/Prompts,\n" \
   "   H\02 = Column Heads,\01  T\02 = Task Information\n" \
   "Select \01color\02 as number:\n" \
   "   0\02 = black,\01  1\02 = red,    \01  2\02 = green,\01  3\02 = yellow,\n" \
   "   4\02 = blue, \01  5\02 = magenta,\01  6\02 = cyan, \01  7\02 = white\n" \
   "\n" \
   "Selected: \01target\02 \01 %c \04; \01color\02 \01 %d \04\n" \
   "   press 'q' to abort changes to window '\01%s\02'\n" \
   "   press 'a' or 'w' to commit & change another, <Enter> to commit and end " \
   ""

// Windows/Field Group Help specially formatted string(s) --
// see 'show_special' for syntax details + other cautions.
#define WINDOWS_help \
   "Help for Windows / Field Groups\02 - \"Current Window\" = \01 %s \06\n" \
   "\n" \
   ". Use multiple \01windows\02, each with separate config opts (color,fields,sort,etc)\n" \
   ". The 'current' window controls the \01Summary Area\02 and responds to your \01Commands\02\n" \
   "  . that window's \01task display\02 can be turned \01Off\02 & \01On\02, growing/shrinking others\n" \
   "  . with \01NO\02 task display, some commands will be \01disabled\02 ('i','R','n','c', etc)\n" \
   "    until a \01different window\02 has been activated, making it the 'current' window\n" \
   ". You \01change\02 the 'current' window by: \01 1\02) cycling forward/backward;\01 2\02) choosing\n" \
   "  a specific field group; or\01 3\02) exiting the color mapping screen\n" \
   ". Commands \01available anytime   -------------\02\n" \
   "    A       . Alternate display mode toggle, show \01Single\02 / \01Multiple\02 windows\n" \
   "    G       . Choose another field group and make it 'current', or change now\n" \
   "              by selecting a number from: \01 1\02 =%s;\01 2\02 =%s;\01 3\02 =%s; or\01 4\02 =%s\n" \
   ". Commands \01requiring\02 '\01A\02' mode\01  -------------\02\n" \
   "    g       . Change the \01Name\05 of the 'current' window/field group\n" \
   " \01*\04  a , w   . Cycle through all four windows:  '\01a\05' Forward; '\01w\05' Backward\n" \
   " \01*\04  - , _   . Show/Hide:  '\01-\05' \01Current\02 window; '\01_\05' all \01Visible\02/\01Invisible\02\n" \
   "  The screen will be divided evenly between task displays.  But you can make\n" \
   "  some \01larger\02 or \01smaller\02, using '\01n\02' and '\01i\02' commands.  Then later you could:\n" \
   " \01*\04  = , +   . Rebalance tasks:  '\01=\05' \01Current\02 window; '\01+\05' \01Every\02 window\n" \
   "              (this also forces the \01current\02 or \01every\02 window to become visible)\n" \
   "\n" \
   "In '\01A\02' mode, '\01*\04' keys are your \01essential\02 commands.  Please try the '\01a\02' and '\01w\02'\n" \
   "commands plus the 'G' sub-commands NOW.  Press <Enter> to make 'Current' " \
   ""


/*######  For Piece of mind  #############################################*/

        /* just sanity check(s)... */
#if USRNAMSIZ < GETBUFSIZ
# error "Jeeze, USRNAMSIZ Must NOT be less than GETBUFSIZ !"
#endif



#endif /* _Itop */