From 26521bed933853a430ccb086524bd5bb9d2a78ba Mon Sep 17 00:00:00 2001
From: reinelt <>
Date: Wed, 22 Mar 2000 07:33:50 +0000
Subject: [lcd4linux @ 2000-03-22 07:33:50 by reinelt] FAQ added new modules
 'processor.c' contains all data processing

---
 processor.c | 393 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 393 insertions(+)
 create mode 100644 processor.c

(limited to 'processor.c')

diff --git a/processor.c b/processor.c
new file mode 100644
index 0000000..6c95208
--- /dev/null
+++ b/processor.c
@@ -0,0 +1,393 @@
+/* $Id: processor.c,v 1.1 2000/03/22 07:33:50 reinelt Exp $
+ *
+ * main data processing
+ *
+ * Copyright 1999, 2000 by Michael Reinelt (reinelt@eunet.at)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * $Log: processor.c,v $
+ * Revision 1.1  2000/03/22 07:33:50  reinelt
+ *
+ * FAQ added
+ * new modules 'processor.c' contains all data processing
+ *
+ */
+
+/* 
+ * exported functions:
+ *
+ * void process_init (void);
+ *   does all necessary initializations
+ *
+ * void process (int smooth);
+ *   processes a whole screen
+ *   bars will always be processed
+ *   texts only if smooth=0
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "cfg.h"
+#include "system.h"
+#include "isdn.h"
+#include "parser.h"
+#include "display.h"
+#include "processor.h"
+
+
+#define ROWS 16
+
+char *row[ROWS];
+int   rows, cols, xres, yres, supported_bars;
+int   token_usage[256]={0,};
+
+struct { int total, used, free, shared, buffer, cache, avail; } ram;
+struct { double load1, load2, load3, overload; } load;
+struct { double user, nice, system, idle; } busy;
+struct { int read, write, total, max, peak; } disk;
+struct { int rx, tx, total, max, peak; } net;
+struct { int usage, in, out, total, max, peak; } isdn;
+struct { double val, min, max; } sensor[SENSORS];
+
+
+static double query (int token)
+{
+  switch (token) {
+    
+  case T_MEM_TOTAL:
+    return ram.total;
+  case T_MEM_USED:
+    return ram.used;
+  case T_MEM_FREE:
+    return ram.free;
+  case T_MEM_SHARED:
+    return ram.shared;
+  case T_MEM_BUFFER:
+    return ram.buffer;
+  case T_MEM_CACHE:
+    return ram.cache;
+  case T_MEM_AVAIL:
+    return ram.avail;
+
+  case T_LOAD_1:
+    return load.load1;
+  case T_LOAD_2:
+    return load.load2;
+  case T_LOAD_3:
+    return load.load3;
+    
+  case T_CPU_USER:
+    return busy.user;
+  case T_CPU_NICE:
+    return busy.nice;
+  case T_CPU_SYSTEM:
+    return busy.system;
+  case T_CPU_BUSY:
+    return 1.0-busy.idle;
+  case T_CPU_IDLE:
+    return busy.idle;
+    
+  case T_DISK_READ:
+    return disk.read;
+  case T_DISK_WRITE:
+    return disk.write;
+  case T_DISK_TOTAL:
+    return disk.total;
+  case T_DISK_MAX:
+    return disk.max;
+    
+  case T_NET_RX:
+    return net.rx;
+  case T_NET_TX:
+    return net.tx;
+  case T_NET_TOTAL:
+    return net.total;
+  case T_NET_MAX:
+    return net.max;
+    
+  case T_ISDN_IN:
+    return isdn.in;
+  case T_ISDN_OUT:
+    return isdn.out;
+  case T_ISDN_TOTAL:
+    return isdn.total;
+  case T_ISDN_MAX:
+    return isdn.max;
+
+  case T_SENSOR_1:
+  case T_SENSOR_2:
+  case T_SENSOR_3:
+  case T_SENSOR_4:
+  case T_SENSOR_5:
+  case T_SENSOR_6:
+  case T_SENSOR_7:
+  case T_SENSOR_8:
+  case T_SENSOR_9:
+    return sensor[token-T_SENSOR_1+1].val;
+  }
+  return 0.0;
+}
+
+static double query_bar (int token)
+{
+  int i;
+  double value=query(token);
+  
+  switch (token) {
+
+  case T_MEM_TOTAL:
+  case T_MEM_USED:
+  case T_MEM_FREE:
+  case T_MEM_SHARED:
+  case T_MEM_BUFFER:
+  case T_MEM_CACHE:
+  case T_MEM_AVAIL:
+    return value/ram.total;
+
+  case T_LOAD_1:
+  case T_LOAD_2:
+  case T_LOAD_3:
+    return value/load.overload;
+    
+  case T_DISK_READ:
+  case T_DISK_WRITE:
+  case T_DISK_MAX:
+    return value/disk.peak;
+  case T_DISK_TOTAL:
+    return value/disk.peak/2.0;
+    
+  case T_NET_RX:
+  case T_NET_TX:
+  case T_NET_MAX:
+    return value/net.peak;
+  case T_NET_TOTAL:
+    return value/net.peak/2.0;
+    
+  case T_ISDN_IN:
+  case T_ISDN_OUT:
+  case T_ISDN_MAX:
+    return value/isdn.peak;
+  case T_ISDN_TOTAL:
+    return value/isdn.peak/2.0;
+
+  case T_SENSOR_1:
+  case T_SENSOR_2:
+  case T_SENSOR_3:
+  case T_SENSOR_4:
+  case T_SENSOR_5:
+  case T_SENSOR_6:
+  case T_SENSOR_7:
+  case T_SENSOR_8:
+  case T_SENSOR_9:
+    i=token-T_SENSOR_1+1;
+    return (value-sensor[i].min)/(sensor[i].max-sensor[i].min);
+  }
+  return value;
+}
+
+static void print_token (int token, char **p)
+{
+  double val;
+  
+  switch (token) {
+  case T_PERCENT:
+    *(*p)++='%';
+    break;
+  case T_DOLLAR:
+    *(*p)++='$';
+    break;
+  case T_OS:
+    *p+=sprintf (*p, "%s", System());
+    break;
+  case T_RELEASE:
+    *p+=sprintf (*p, "%s", Release());
+    break;
+  case T_CPU:
+    *p+=sprintf (*p, "%s", Processor());
+    break;
+  case T_RAM:
+    *p+=sprintf (*p, "%d", Memory());
+    break;
+  case T_OVERLOAD:
+    *(*p)++=load.load1>load.overload?'!':' ';
+    break;
+  case T_MEM_TOTAL:
+  case T_MEM_USED:
+  case T_MEM_FREE:
+  case T_MEM_SHARED:
+  case T_MEM_BUFFER:
+  case T_MEM_CACHE:
+  case T_MEM_AVAIL:
+    *p+=sprintf (*p, "%6.0f", query(token));
+    break;
+  case T_LOAD_1:
+  case T_LOAD_2:
+  case T_LOAD_3:
+  case T_SENSOR_1:
+  case T_SENSOR_2:
+  case T_SENSOR_3:
+  case T_SENSOR_4:
+  case T_SENSOR_5:
+  case T_SENSOR_6:
+  case T_SENSOR_7:
+  case T_SENSOR_8:
+  case T_SENSOR_9:
+    val=query(token);
+    if (val<10.0) {
+      *p+=sprintf (*p, "%4.2f", val);
+    } else if (val<100.0) {
+      *p+=sprintf (*p, "%4.1f", val);
+    } else {
+      *p+=sprintf (*p, "%4.0f", val);
+    }
+    break;
+  case T_CPU_USER:
+  case T_CPU_NICE:
+  case T_CPU_SYSTEM:
+  case T_CPU_BUSY:
+  case T_CPU_IDLE:
+    *p+=sprintf (*p, "%3.0f", 100.0*query(token));
+    break;
+  case T_ISDN_IN:
+  case T_ISDN_OUT:
+  case T_ISDN_MAX:
+  case T_ISDN_TOTAL:
+    if (isdn.usage)
+      *p+=sprintf (*p, "%4.0f", query(token));
+    else
+      *p+=sprintf (*p, "----");
+    break;
+  default:
+      *p+=sprintf (*p, "%4.0f", query(token));
+  }
+}
+
+static void collect_data (void) 
+{
+  int i;
+
+  if (token_usage[C_MEM]) {
+    Ram (&ram.total, &ram.free, &ram.shared, &ram.buffer, &ram.cache); 
+    ram.used=ram.total-ram.free;
+    ram.avail=ram.free+ram.buffer+ram.cache;
+  }
+  
+  if (token_usage[C_LOAD]) {
+    Load (&load.load1, &load.load2, &load.load3);
+  }
+  
+  if (token_usage[C_CPU]) {
+    Busy (&busy.user, &busy.nice, &busy.system, &busy.idle);
+  }
+  
+  if (token_usage[C_DISK]) {
+    Disk (&disk.read, &disk.write);
+    disk.total=disk.read+disk.write;
+    disk.max=disk.read>disk.write?disk.read:disk.write;
+    if (disk.max>disk.peak) disk.peak=disk.max;
+  }
+  
+  if (token_usage[C_NET]) {
+    Net (&net.rx, &net.tx);
+    net.total=net.rx+net.tx;
+    net.max=net.rx>net.tx?net.rx:net.tx;
+    if (net.max>net.peak) net.peak=net.max;
+  }
+
+  if (token_usage[C_ISDN]) {
+    Isdn (&isdn.in, &isdn.out, &isdn.usage);
+    isdn.total=isdn.in+isdn.out;
+    isdn.max=isdn.in>isdn.out?isdn.in:isdn.out;
+    if (isdn.max>isdn.peak) isdn.peak=isdn.max;
+  }
+
+  for (i=1; i<SENSORS; i++) {
+    if (token_usage[T_SENSOR_1+i-1]) {
+      Sensor (i, &sensor[i].val, &sensor[i].min, &sensor[i].max);
+    }
+  }
+}
+
+static char *process_row (int r)
+{
+  static char buffer[256];
+  char *s=row[r];
+  char *p=buffer;
+  
+  do {
+    if (*s=='%') {
+      print_token (*(unsigned char*)++s, &p);
+	
+    } else if (*s=='$') {
+      int i;
+      int type=*++s;
+      int len=*++s;
+      double val1=query_bar(*(unsigned char*)++s);
+      double val2=val1;
+      if (type & (BAR_H2 | BAR_V2))
+	val2=query_bar(*(unsigned char*)++s);
+      if (type & BAR_H)
+	lcd_bar (type, r, p-buffer+1, len*xres, val1*len*xres, val2*len*xres);
+      else
+	lcd_bar (type, r, p-buffer+1, len*yres, val1*len*yres, val2*len*yres);
+      
+      if (type & BAR_H) {
+	for (i=0; i<len && p-buffer<cols; i++)
+	  *p++='\t';
+      } else {
+	*p++='\t';
+      }
+      
+    } else {
+      *p++=*s;
+    }
+    
+  } while (*s++); 
+    
+  return buffer;
+}
+
+void process_init (void)
+{
+  int i;
+  char buffer[8];
+
+  load.overload=atof(cfg_get("overload"));
+  lcd_query (&rows, &cols, &xres, &yres, &supported_bars);
+
+  for (i=1; i<=rows; i++) {
+    snprintf (buffer, sizeof(buffer), "row%d", i);
+    row[i]=strdup(parse(cfg_get(buffer), supported_bars, token_usage));
+  }
+}
+
+void process (int smooth)
+{
+  int i;
+  char *txt;
+
+  collect_data();
+  for (i=1; i<=rows; i++) {
+    txt=process_row (i);
+    if (smooth==0)
+      lcd_put (i, 1, txt);
+  }
+  lcd_flush();
+}
-- 
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