wmSMPmon: Solaris support, load aggregation

I wanted to use it on Solaris which has different way to obtain system
statistics. I build a support file and changed Makefile to take the
operating system into account.
Then I moved to fixing the widget. The comments in the code said that
it supports only 2 CPUs. I've added an aggregation so that it still
shows two graphs but represents all CPUs.
Lastly, I some programmatic flaws - like multiple loops for one task -
cleaning up the code a bit. It should also speed up the widget a
little.

wmSMPmon/Changelog

@@ -1,3 +1,9 @@
+3.2
+
+- Added Solaris support.
+- Added CPU load aggreggation so that they fit into two columns.
+- A bit of code clean-up to speed up things.
+
 3.1
 
 - Fixed bug where wmSMPmon would crash if no swap is enabled/present

wmSMPmon/wmSMPmon/Makefile

@@ -5,7 +5,9 @@
 BINDIR=/usr/local/bin/
 MANDIR=/usr/local/share/man/
 
-SRC = general.c sysinfo-linux.c ../wmgeneral/wmgeneral.c wmSMPmon.c 
+OS := $(shell uname -s)
+
+SRC = general.c ../wmgeneral/wmgeneral.c wmSMPmon.c
 EXE = wmSMPmon
 MAN = wmSMPmon.1
 OBJ = $(SRC:.c=.o)
@@ -16,6 +18,14 @@ CC = gcc
 CFLAGS = -Wall -O2 -g
 LIB = -L/usr/X11R6/lib -lXpm -lXext -lX11
 
+ifeq ($(OS),Linux)
+SRC += sysinfo-linux.c
+endif
+ifeq ($(OS),SunOS)
+SRC += sysinfo-solaris.c
+LIB += -lkstat
+endif
+
 all: $(OBJ)
 	$(CC) -o $(EXE) $(OBJ) $(LIB)
 

wmSMPmon/wmSMPmon/wmSMPmon.c

@@ -23,7 +23,7 @@ CURRENT MAINTAINER: Thomas Ribbrock <emgaron@gmx.net>
 #include	"standards.h"
 #include        "sysinfo-linux.h"
 
-#define		VERSION		"3.1"
+#define		VERSION		"3.2"
 
 /*###### Dividers for redraw-loops ######################################*/
 #define		DIV1		6
@@ -44,8 +44,8 @@ int main(int argc, char **argv)
    unsigned int		t0[TAILLE_T], /* history for CPU 0 -> Graph */
       			t1[TAILLE_T], /* history for CPU 1 -> Graph */
                         tm[TAILLE_T], /* history for CPU 0+1 -> Graph */
-   			c1 = 6,
+   			c1 = DIV1,
-      			c2 = 9,
+      			c2 = DIV2,
                         etat = 1,
       			lecture = 1,
  			delay = 250000,
@@ -54,7 +54,7 @@ int main(int argc, char **argv)
                         load0o = 0,
                         load1o = 0,
                         no_swap = FAUX,
-                        draw_graph = FAUX,
+                        draw_graph = VRAI,
                         NumCPUs,      /* number of CPUs */
                         i = 0,        /* counter */
                         mem = 0, /* current memory/swap scaled to 0-100 */
@@ -65,7 +65,7 @@ int main(int argc, char **argv)
    unsigned long	load0t=0, load1t=0 ;
 
    unsigned int         *CPU_Load; /* CPU load per CPU array */
-
+   unsigned int		t_idx = 0; /* Index to load history tables */
 
        /********** Initialisation **********/
   NumCPUs = NumCpus_DoInit();
@@ -83,7 +83,6 @@ int main(int argc, char **argv)
   Myname = strrchr(argv[0], '/');
   if (Myname) ++Myname; else Myname = argv[0];
 
-
   /* process command line args */
   i = 1; /* skip program name (i=0) */
    while(argc > i)
@@ -162,12 +161,11 @@ int main(int argc, char **argv)
 
    delay = delay / 2 ;
 
-   for(i = 0 ; i < TAILLE_T ; i ++)
+   for(i = 0 ; i < TAILLE_T ; i ++) {
       t0[i] = 0 ;
-   for(i = 0 ; i < TAILLE_T ; i ++)
       t1[i] = 0 ;
-   for(i = 0 ; i < TAILLE_T ; i ++)
       tm[i] = 0 ;
+   }
 
        /* -no-swap option was given */
    if(no_swap)
@@ -181,7 +179,11 @@ int main(int argc, char **argv)
         CPU_Load = Get_CPU_Load(CPU_Load, NumCPUs);
 
 	load = CPU_Load[0];
-        load0t = load0t + load ;
+	for (i = 1; i < NumCPUs >> 1; i++) {
+	    load += CPU_Load[i];
+	}
+	load = load / i;
+        load0t = load0t + load;
          if(load != load0o)
          {
                /* redraw only if cpu load changed */
@@ -194,8 +196,11 @@ int main(int argc, char **argv)
          if(NumCPUs >= 2)
          {
                /* we have two CPUs -> do CPU 1 */
-               /* FIXME: What about more CPUs? */
+           load = 0;
-           load = CPU_Load[1];
+	   for (; i < NumCPUs; i++) {
+               load += CPU_Load[i];
+           }
+           load = load / (NumCPUs >> 1);
 
            if(load != load1o)
              {
@@ -212,7 +217,6 @@ int main(int argc, char **argv)
                 CPU_Load[0], on a SMP system, it will be CPU_Load[1]. */
          load1t = load1t + load ;
 
-
          if(c1 > DIV1)
          {
            mem = Get_Memory();
@@ -249,49 +253,46 @@ int main(int argc, char **argv)
             c1 = 0;
          }
 
-         if(c2 > DIV2)
+         if(c2 > DIV2) {
-            draw_graph = VRAI ;
+            if((t0[t_idx] = load0t / c2) > HAUTEUR)
-         if(draw_graph)
+               t0[t_idx] = HAUTEUR ;
-         {
+            t0[t_idx] /= 2;
-            for(i = 1 ; i < TAILLE_T ; i ++)
+            if((t1[t_idx] = load1t / c2) > HAUTEUR)
-            {
+               t1[t_idx] = HAUTEUR ;
-               t0[i - 1] = t0[i] ;
+            t1[t_idx] /= 2;
-               t1[i - 1] = t1[i] ;
+            if((tm[t_idx] = (load0t + load1t) / (2 * c2)) > HAUTEUR)
-               tm[i - 1] = tm[i] ;
+               tm[t_idx] = HAUTEUR ;
-            }
-            if((t0[TAILLE_T - 1] = load0t / c2) > HAUTEUR)
-               t0[TAILLE_T - 1] = HAUTEUR ;
-            if((t1[TAILLE_T - 1] = load1t / c2) > HAUTEUR)
-               t1[TAILLE_T - 1] = HAUTEUR ;
-            if((tm[TAILLE_T - 1] = (load0t + load1t) / (2 * c2)) > HAUTEUR)
-               tm[TAILLE_T - 1] = HAUTEUR ;
             load0t = 0 ;
             load1t = 0 ;
-
+            t_idx = (t_idx + 1) % TAILLE_T;
+            draw_graph = VRAI ;
+            c2 = 0;
+         }
+         if(draw_graph)
+         {
                 /* draw graph */
             switch(etat)
             {
                case 1 :
                   copyXPMArea(64, 32, TAILLE_T, HAUTEUR, 15, 5) ;
-                  for(i = 0 ; i < TAILLE_T ; i ++)
+                  for(i = 0, load = t_idx ; i < TAILLE_T ; i ++, load++)
-                     copyXPMArea(116, 0, 1, tm[i], 15 + i, HAUTEUR + 5 - tm[i]) ;
+                     copyXPMArea(116, 0, 1, tm[load % TAILLE_T], 15 + i, HAUTEUR + 5 - tm[load % TAILLE_T]) ;
                   break ;
                case 2 :
                   copyXPMArea(64, 0, TAILLE_T, HAUTEUR, 15, 5) ;
-                  for(i = 0 ; i < TAILLE_T ; i ++)
+                  for(i = 0, load = t_idx ; i < TAILLE_T ; i ++, load++) {
-                     copyXPMArea(116, 0, 1, t0[i]/2, 15 + i, HAUTEUR/2 + 5 - t0[i]/2) ;
+                     copyXPMArea(116, 0, 1, t0[load % TAILLE_T], 15 + i, HAUTEUR/2 + 5 - t0[load % TAILLE_T]) ;
-                  for(i = 0 ; i < TAILLE_T ; i ++)
+                     copyXPMArea(116, 0, 1, t1[load % TAILLE_T], 15 + i, HAUTEUR/2 + 21 - t1[load % TAILLE_T]) ;
-                     copyXPMArea(116, 0, 1, t1[i]/2, 15 + i, HAUTEUR/2 + 21 - t1[i]/2) ;
+                  }
                   break ;
                case 3 :
                   copyXPMArea(64, 0, TAILLE_T, HAUTEUR, 15, 5) ;
-                  for(i = 0 ; i < TAILLE_T ; i ++)
+                  for(i = 0, load = t_idx ; i < TAILLE_T ; i ++, load++) {
-                     copyXPMArea(116, 0, 1, t0[i]/2, 15 + i, HAUTEUR/2 + 5 - t0[i]/2) ;
+                     copyXPMArea(116, 0, 1, t0[load % TAILLE_T], 15 + i, HAUTEUR/2 + 5 - t0[load % TAILLE_T]) ;
-                  for(i = 0 ; i < TAILLE_T ; i ++)
+                     copyXPMArea(117, HAUTEUR/2 - t1[load % TAILLE_T], 1, t1[load % TAILLE_T], 15 + i, HAUTEUR/2 + 6) ;
-                     copyXPMArea(117, (HAUTEUR - t1[i])/2, 1, t1[i]/2, 15 + i, HAUTEUR/2 + 6) ;               
+                  }
                   break ;
             }
-            c2 = 0 ;
             draw_graph = FAUX ;
          }
          c1 ++ ;
@@ -307,7 +308,6 @@ int main(int argc, char **argv)
             if((etat ++) >= 3)
                etat = 1 ;
             draw_graph = VRAI ;
-            lecture = VRAI ;
          }
       }
       usleep(delay);