Implement user-selected status bar components

[khatus.git] / bin / khatus_bar

diff --git a/bin/khatus_bar b/bin/khatus_bar
index 2a517a1..b1e9e36 100755 (executable)
--- a/bin/khatus_bar
+++ b/bin/khatus_bar
@@ -3,7 +3,7 @@
 # Naming convention:
 #     Variables:
 #         - global, builtin : ALLCAPS
-#         - global, public  : CamelCase
+#         - global, public  : Camel_Snake_Man_Bear_Pig
 #         - global, private : _snake_case_prefixed_underscore
 #         - local           : snake_case
 #     Functions:
@@ -13,6 +13,7 @@ BEGIN {
      FS = msg_fs ? msg_fs : "|"
     OFS = msg_fs ? msg_fs : "|"
     Kfs = key_fs ? key_fs : ":"
+    GC_Interval = GC_Interval ? GC_Interval : 3600  # seconds
 
     _total_to_diff["khatus_sensor_net_addr_io", "bytes_read"     ] = 1
     _total_to_diff["khatus_sensor_net_addr_io", "bytes_written"  ] = 1
@@ -44,6 +45,8 @@ $1 == "OK" {
 
 $1 == "OK" && \
 $2 == "khatus_sensor_datetime" {
+    # Code for make_status_bar definition is expected to be passed as an
+    # additional source file, using  -f  flag.
     print_msg_ok("status_bar", make_status_bar())
 }
 
@@ -65,7 +68,7 @@ function cache_update(    src, key, val, len_line, len_head, len_val, time) {
     _cache[src, key] = val
     time = cache_get_time()
     _cache_mtime[src, key] = time
-    if (time % 3600 == 0) {
+    if (time % GC_Interval == 0) {
         cache_gc()
     }
 }
@@ -96,14 +99,22 @@ function cache_get_time(    src, key, time) {
     return time
 }
 
-function cache_gc(    src_and_key, unused_for) {
+function cache_gc(    src_and_key, parts, src, key, unused_for) {
     for (src_and_key in _cache) {
-        unused_for = cache_get_time() - _cache_atime[src_and_key]
-        if (unused_for > 3600) {
+        split(src_and_key, parts, SUBSEP)
+        src = parts[1]
+        key = parts[2]
+        val = _cache[src, key]
+        unused_for = cache_get_time() - _cache_atime[src, key]
+        if (unused_for > GC_Interval) {
             print_msg_info(\
-                "cache_gc", "Deleting unused src_and_key: " src_and_key \
+                "cache_gc",
+                sprintf(\
+                    "Deleting unused data SRC=%s KEY=%s VAL=%s",
+                    src, key, val\
+                ) \
             )
-            delete _cache[src_and_key]
+            delete _cache[src, key]
         }
     }
 }
@@ -132,29 +143,6 @@ function cache_maybe_scale(src, key, val,    key_parts) {
 # Status bar
 # -----------------------------------------------------------------------------
 
-function make_status_bar(    position, bar, sep, i, j) {
-    position[++i] = ""
-    position[++i] = make_status_energy()
-    position[++i] = make_status_mem()
-    position[++i] = make_status_cpu()
-    position[++i] = make_status_disk()
-    position[++i] = make_status_net()
-    position[++i] = make_status_bluetooth()
-    position[++i] = make_status_screen_brightness()
-    position[++i] = make_status_volume()
-    position[++i] = make_status_mpd()
-    position[++i] = make_status_weather()
-    position[++i] = make_status_datetime()
-    position[++i] = ""
-    bar = ""
-    sep = ""
-    for (j = 1; j <= i; j++) {
-        bar = bar sep position[j]
-        sep = " "
-    }
-    return bar
-}
-
 function make_status_energy(    state, charge, direction_of_change) {
     cache_get(state , "khatus_sensor_energy", "battery_state"     , 0)
     cache_get(charge, "khatus_sensor_energy", "battery_percentage", 0)
@@ -186,6 +174,17 @@ function make_status_mem(    total, used, percent, status) {
     return sprintf("M=%s", status)
 }
 
+function make_status_procs() {
+    src = "khatus_sensor_procs"
+    all = cache_get_fmt_def(src, "total_procs"            , 15, "%d")
+    r   = cache_get_fmt_def(src, "total_per_state" Kfs "R", 15, "%d", "0")
+    d   = cache_get_fmt_def(src, "total_per_state" Kfs "D", 15, "%d", "0")
+    t   = cache_get_fmt_def(src, "total_per_state" Kfs "T", 15, "%d", "0")
+    i   = cache_get_fmt_def(src, "total_per_state" Kfs "I", 15, "%d", "0")
+    z   = cache_get_fmt_def(src, "total_per_state" Kfs "Z", 15, "%d", "0")
+    return sprintf("P=[%s %sr %sd %st %si %sz]", all, r, d, t, i, z)
+}
+
 function make_status_cpu(    l, t, f) {
     l_src = "khatus_sensor_loadavg"
     t_src = "khatus_sensor_temperature"
@@ -199,9 +198,9 @@ function make_status_cpu(    l, t, f) {
 function make_status_disk(    u, w, r, src_u, src_io) {
     src_u  = "khatus_sensor_disk_space"
     src_io = "khatus_sensor_disk_io"
-    u = cache_get_fmt_def(src_space, "disk_usage_percentage", 10, "%s")
-    w = cache_get_fmt_def(src_io   , "sectors_written"      ,  5, "%0.3f")
-    r = cache_get_fmt_def(src_io   , "sectors_read"         ,  5, "%0.3f")
+    u = cache_get_fmt_def(src_u , "disk_usage_percentage", 10, "%s")
+    w = cache_get_fmt_def(src_io, "sectors_written"      ,  5, "%0.3f")
+    r = cache_get_fmt_def(src_io, "sectors_read"         ,  5, "%0.3f")
     return sprintf("D=[%s%% %s▲ %s▼]", u, w, r)
 }
 
@@ -222,7 +221,7 @@ function make_status_net(    \
     sep \
 ) {
     number_of_net_interfaces_to_show = \
-        split(opt_net_interfaces_to_show, net_interfaces_to_show, ",")
+        split(Opt_Net_Interfaces_To_Show, net_interfaces_to_show, ",")
     io = "khatus_sensor_net_addr_io"
     wi = "khatus_sensor_net_wifi_status"
     out = ""
@@ -257,11 +256,11 @@ function make_status_screen_brightness(    src, key) {
 }
 
 function make_status_volume(    sink, mu, vl, vr, show) {
-    sink = opt_pulseaudio_sink
+    sink = Opt_Pulseaudio_Sink
     cache_get(mu, "khatus_sensor_volume", "mute"      Kfs sink, 5)
     cache_get(vl, "khatus_sensor_volume", "vol_left"  Kfs sink, 5)
     cache_get(vr, "khatus_sensor_volume", "vol_right" Kfs sink, 5)
-
+    show = "--"
     if (!mu["is_expired"] && !vl["is_expired"] && !vr["is_expired"]) {
              if (mu["value"] == "yes") {show = "X"}
         else if (mu["value"] == "no")  {show = vl["value"] " " vr["value"]}
@@ -271,10 +270,7 @@ function make_status_volume(    sink, mu, vl, vr, show) {
                 "Unexpected value for 'mute' field: " mu["value"] \
             )
         }
-    } else {
-        show = "--"
     }
-
     return sprintf("(%s)", show)
 }
 
@@ -306,7 +302,7 @@ function make_status_mpd_state_known(symbol,    s, song, time, percentage) {
     song    = cache_get_fmt_def(s, "song"                   , 5, "%s", "?")
     time    = cache_get_fmt_def(s, "play_time_minimal_units", 5, "%s", "?")
     percent = cache_get_fmt_def(s, "play_time_percentage"   , 5, "%s", "?")
-    song    = substr(song, 1, opt_mpd_song_max_chars)
+    song    = substr(song, 1, Opt_Mpd_Song_Max_Chars)
     return sprintf("%s %s %s %s", symbol, time, percent, song)
 }