From e571e75266c1a75ac309339c04879886cbd298cf Mon Sep 17 00:00:00 2001
From: joerg <joerg@FreeBSD.org>
Date: Sun, 23 Mar 1997 18:53:01 +0000
Subject: Apply the FreeBSD-local patches.

Obtained from:	The ports collection.
---
 contrib/top/display.c | 45 +++++++++++++++++++++++++++++++++++++++++++--
 contrib/top/layout.h  | 12 +++++++-----
 contrib/top/machine.h |  2 ++
 contrib/top/top.c     | 15 +++++++++++++--
 contrib/top/top.h     |  2 +-
 contrib/top/utils.c   | 47 ++++++++++++++++++++++++++++++++++++++++-------
 contrib/top/utils.h   |  1 +
 7 files changed, 107 insertions(+), 17 deletions(-)

(limited to 'contrib/top')

diff --git a/contrib/top/display.c b/contrib/top/display.c
index 0769e3f..6b3a5f4 100644
--- a/contrib/top/display.c
+++ b/contrib/top/display.c
@@ -63,14 +63,17 @@ char *screenbuf = NULL;
 static char **procstate_names;
 static char **cpustate_names;
 static char **memory_names;
+static char **swap_names;
 
 static int num_procstates;
 static int num_cpustates;
 static int num_memory;
+static int num_swap;
 
 static int *lprocstates;
 static int *lcpustates;
 static int *lmemory;
+static int *lswap;
 
 static int *cpustate_columns;
 static int cpustate_total_length;
@@ -140,6 +143,10 @@ struct statics *statics;
 	lprocstates = (int *)malloc(num_procstates * sizeof(int));
 
 	cpustate_names = statics->cpustate_names;
+
+	swap_names = statics->swap_names;
+	num_swap = string_count(swap_names);
+	lswap = (int *)malloc(num_swap * sizeof(int));
 	num_cpustates = string_count(cpustate_names);
 	lcpustates = (int *)malloc(num_cpustates * sizeof(int));
 	cpustate_columns = (int *)malloc(num_cpustates * sizeof(int));
@@ -511,7 +518,7 @@ i_memory(stats)
 int *stats;
 
 {
-    fputs("\nMemory: ", stdout);
+    fputs("\nMem: ", stdout);
     lastline++;
 
     /* format and print the memory summary */
@@ -532,6 +539,40 @@ int *stats;
 }
 
 /*
+ *  *_swap(stats) - print "Swap: " followed by the swap summary string
+ *
+ *  Assumptions:  cursor is on "lastline"
+ *                for i_swap ONLY: cursor is on the previous line
+ */
+
+char swap_buffer[MAX_COLS];
+
+i_swap(stats)
+
+int *stats;
+
+{
+    fputs("\nSwap: ", stdout);
+    lastline++;
+
+    /* format and print the swap summary */
+    summary_format(swap_buffer, stats, swap_names);
+    fputs(swap_buffer, stdout);
+}
+
+u_swap(stats)
+
+int *stats;
+
+{
+    static char new[MAX_COLS];
+
+    /* format the new line */
+    summary_format(new, stats, swap_names);
+    line_update(swap_buffer, new, x_swap, y_swap);
+}
+
+/*
  *  *_message() - print the next pending message line, or erase the one
  *                that is there.
  *
@@ -845,7 +886,7 @@ int  numeric;
     while ((fflush(stdout), read(0, ptr, 1) > 0))
     {
 	/* newline means we are done */
-	if ((ch = *ptr) == '\n')
+	if ((ch = *ptr) == '\n' || ch == '\r')
 	{
 	    break;
 	}
diff --git a/contrib/top/layout.h b/contrib/top/layout.h
index 77ce102..5db383f 100644
--- a/contrib/top/layout.h
+++ b/contrib/top/layout.h
@@ -15,13 +15,15 @@
 #define  y_procstate	1
 #define  x_brkdn	15
 #define  y_brkdn	1
-#define  x_mem		8
+#define  x_mem		5
 #define  y_mem		3
-#define  y_message	4
+#define  x_swap		6
+#define  y_swap		4
+#define  y_message	5
 #define  x_header	0
-#define  y_header	5
+#define  y_header	6
 #define  x_idlecursor	0
-#define  y_idlecursor	4
-#define  y_procs	6
+#define  y_idlecursor	5
+#define  y_procs	7
 
 #define  y_cpustates	2
diff --git a/contrib/top/machine.h b/contrib/top/machine.h
index 4f121a7..243ba27 100644
--- a/contrib/top/machine.h
+++ b/contrib/top/machine.h
@@ -12,6 +12,7 @@ struct statics
     char **procstate_names;
     char **cpustate_names;
     char **memory_names;
+    char **swap_names;
 #ifdef ORDER
     char **order_names;
 #endif
@@ -30,6 +31,7 @@ struct system_info
     int    *procstates;
     int    *cpustates;
     int    *memory;
+    int    *swap;
 };
 
 /* cpu_states is an array of percentages * 10.  For example, 
diff --git a/contrib/top/top.c b/contrib/top/top.c
index 55bee4e..1902abb 100644
--- a/contrib/top/top.c
+++ b/contrib/top/top.c
@@ -111,6 +111,8 @@ int i_cpustates();
 int u_cpustates();
 int i_memory();
 int u_memory();
+int i_swap();
+int u_swap();
 int i_message();
 int u_message();
 int i_header();
@@ -123,6 +125,7 @@ int (*d_loadave)() = i_loadave;
 int (*d_procstates)() = i_procstates;
 int (*d_cpustates)() = i_cpustates;
 int (*d_memory)() = i_memory;
+int (*d_swap)() = i_swap;
 int (*d_message)() = i_message;
 int (*d_header)() = i_header;
 int (*d_process)() = i_process;
@@ -568,6 +571,9 @@ Usage: %s [-ISbinqu] [-d x] [-s x] [-o field] [-U username] [number]\n",
 	/* display memory stats */
 	(*d_memory)(system_info.memory);
 
+	/* display swap stats */
+	(*d_swap)(system_info.swap);
+
 	/* handle message area */
 	(*d_message)();
 
@@ -622,6 +628,7 @@ Usage: %s [-ISbinqu] [-d x] [-s x] [-o field] [-U username] [number]\n",
 		    d_procstates = u_procstates;
 		    d_cpustates = u_cpustates;
 		    d_memory = u_memory;
+		    d_swap = u_swap;
 		    d_message = u_message;
 		    d_header = u_header;
 		    d_process = u_process;
@@ -663,8 +670,11 @@ Usage: %s [-ISbinqu] [-d x] [-s x] [-o field] [-U username] [number]\n",
 		    (void) read(0, &ch, 1);
 		    if ((iptr = strchr(command_chars, ch)) == NULL)
 		    {
-			/* illegal command */
-			new_message(MT_standout, " Command not understood");
+			if (ch != '\r' && ch != '\n')
+			{
+			    /* illegal command */
+			    new_message(MT_standout, " Command not understood");
+			}
 			putchar('\r');
 			no_command = Yes;
 		    }
@@ -909,6 +919,7 @@ reset_display()
     d_procstates = i_procstates;
     d_cpustates  = i_cpustates;
     d_memory     = i_memory;
+    d_swap       = i_swap;
     d_message	 = i_message;
     d_header	 = i_header;
     d_process	 = i_process;
diff --git a/contrib/top/top.h b/contrib/top/top.h
index 8f50922..aeed136 100644
--- a/contrib/top/top.h
+++ b/contrib/top/top.h
@@ -8,7 +8,7 @@
 #define VERSION		3
 
 /* Number of lines of header information on the standard screen */
-#define Header_lines	6
+#define Header_lines	7
 
 /* Maximum number of columns allowed for display */
 #define MAX_COLS	128
diff --git a/contrib/top/utils.c b/contrib/top/utils.c
index 67b64e9..e136d2a 100644
--- a/contrib/top/utils.c
+++ b/contrib/top/utils.c
@@ -308,9 +308,13 @@ long *diffs;
 
     /* calculate percentages based on overall change, rounding up */
     half_total = total_change / 2l;
-    for (i = 0; i < cnt; i++)
-    {
-	*out++ = (int)((*diffs++ * 1000 + half_total) / total_change);
+
+    /* Do not divide by 0. Causes Floating point exception */
+    if(total_change) {
+        for (i = 0; i < cnt; i++)
+        {
+          *out++ = (int)((*diffs++ * 1000 + half_total) / total_change);
+        }
     }
 
     /* return the total in case the caller wants to use it */
@@ -329,9 +333,6 @@ long *diffs;
 
 /* externs referenced by errmsg */
 
-extern char *sys_errlist[];
-extern int sys_nerr;
-
 char *errmsg(errnum)
 
 int errnum;
@@ -339,7 +340,7 @@ int errnum;
 {
     if (errnum > 0 && errnum < sys_nerr)
     {
-	return(sys_errlist[errnum]);
+	return((char *)sys_errlist[errnum]);
     }
     return("No error");
 }
@@ -451,3 +452,35 @@ int amt;
 
     return(ret);
 }
+
+char *format_k2(amt)
+
+int amt;
+
+{
+    static char retarray[NUM_STRINGS][16];
+    static int index = 0;
+    register char *p;
+    register char *ret;
+    register char tag = 'K';
+
+    p = ret = retarray[index];
+    index = (index + 1) % NUM_STRINGS;
+
+    if (amt >= 100000)
+    {
+	amt = (amt + 512) / 1024;
+	tag = 'M';
+	if (amt >= 100000)
+	{
+	    amt = (amt + 512) / 1024;
+	    tag = 'G';
+	}
+    }
+
+    p = strecpy(p, itoa(amt));
+    *p++ = tag;
+    *p = '\0';
+
+    return(ret);
+}
diff --git a/contrib/top/utils.h b/contrib/top/utils.h
index 628a0be..6717092 100644
--- a/contrib/top/utils.h
+++ b/contrib/top/utils.h
@@ -21,3 +21,4 @@ long percentages();
 char *errmsg();
 char *format_time();
 char *format_k();
+char *format_k2();
-- 
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