I've been wondering if I can make mutexes much easier to use in C++ with creative use of a locking class and variable scope, but I'm not sure if things happen in the order I want. Here's pseudocode for something that could use the class:
int someclass::getvalue()
{
int retval;
... (0 Replies)
Hi,
I am stuck while developing a shell sub-routine which checks the log file for "success" or "failure". The subroutine reads the log file and checks for key word "success", if found it set the variable (found=1). It returns success or failure based on this variable.
My problem is, I can... (2 Replies)
Hi All,
I am new to unix shell scripting,
in the below script "num" is an input file which contains a series of numbers example :
2
3
5
8
I want to add the above all numbers and want the result finally outside the while loop. it prints the value zero instead of the actual expected... (13 Replies)
hi all,
i'm using the following script,
Status=1
Function_do ()
{
while read line;
do
if ; then
#echo $line
if ; then
Status=0
echo " LINKINK ERROR "
fi
fi
done < ldd.log
}
Function_do (4 Replies)
cat test.ksh
#!/usr/bin/ksh
VAR="Dear Friends \n How are you? \n Have a nice day \n"
export VAR
echo "Inside test.ksh";
./test.pl
cat test.pl
#!/usr/bin/perl
print "Inside test.pl \n";
print "$VAR";
Output:
./test.ksh
Inside test.ksh
Inside test.plWhat I want to achieve is, I... (1 Reply)
Hi All,
I've been researching this problem and I am pretty sure that the issue is related to the while loop and the piping. There are plenty of other threads about this issue that recommend removing the pipe and using redirection. However, I haven't been able to get it working using the ssh and... (1 Reply)
Hi,
I use Korn Shell. Searched Forum and modified the way the file is input to the while loop, but still the variable does not seem to be retaining the final count.
while read name
do
Tmp=`echo $name | awk '{print $9 }'`
Count=`cat $Tmp | wc -l`... (6 Replies)
Hello! Before you "bash" me with
- Not another post of this kind
Please read on and you will understand my problem...
I am using the below to extract a sum of the diskIO on a Solaris server.
#!/bin/sh
PATH=/usr/bin:/usr/sbin:/sbin; export PATH
TEMP1="/tmp/raw-sar-output.txt$$"... (3 Replies)
Hi All
Is there is any way to maintain the scope of the variable in unix
Example
x=1
j=1
while
do
..
....
....
while
do
..
..
x=x+1
done
#inner most while loop ends here
done
#outer loop ends here (8 Replies)
I have to admit that i have not used Perl at all and this is a singular occasion where i have to patch an existing Perl script. I dearly hope i do not have to do it again for the next 15 years and therefore try to avoid having to learn the programming language in earnest.
The OS is AIX 7.1, the... (2 Replies)
Discussion started by: bakunin
2 Replies
LEARN ABOUT HPUX
xtsetarg
XtSetArg() XtSetArg()
Name
XtSetArg - set a resource name and value in an argument list.
Synopsis
void XtSetArg(arg, resource_name, value)
Arg arg;
String resource_name;
XtArgVal value;
Inputs
arg Specifies the Arg structure to set.
resource_name
Specifies the name of the resource.
value Specifies the value of the resource, or its address.
Description
XtSetArg() sets arg.name to resource_name, and sets arg.value to value. If the size of the resource is less than or equal to the size of
an XtArgVal, the resource value is stored directly in value; otherwise, a pointer to it is stored in value.
XtSetArg() is implemented as the following macro:
#define XtSetArg(arg, n, d) ((void)( (arg).name = (n), (arg).value = (XtArgVal)(d) ))
Because this macro evaluates arg twice, you must not use an expression with autoincrement, autodecrement or other side effects for this
argument.
Usage
Many Intrinsics functions need to be passed pairs of resource names and values in an ArgList to set or override resource values. XtSe-
tArg() is used to set or dynamically change values in an Arg structure or ArgList array.
Note that in Release 4, a number of functions beginning with the prefix XtVa were added to the Intrinsics. These functions accept a NULL-
terminated variable-length argument list instead of a single ArgList array. Often these forms of the functions are easier to use.
Example
XtSetArg() is usually used in a highly stylized manner to minimize the probability of making a mistake; for example:
Arg args[20];
int n;
n = 0;
XtSetArg(args[n], XtNheight, 100); n++;
XtSetArg(args[n], XtNwidth, 200); n++;
XtSetValues(widget, args, n);
Incrementing the array index on the same line means that resource settings can be easily read, inserted, deleted or commented out on a
line-by-line basis. If you use this approach, be careful when using XtSetArg() inside an if statement-don't forget to use curly braces to
include the increment statement.
Alternatively, an application can statically declare the argument list:
static Args args[] = {
{XtNheight, (XtArgVal) 100},
{XtNwidth, (XtArgVal) 200},
};
XtSetValues(Widget, args, XtNumber(args));
Structures
The Arg and ArgList types are defined as follows:
typedef struct {
String name;
XtArgVal value;
} Arg, *ArgList;
The definition of XtArgVal differs depending on architecture-its purpose is precisely to make code portable between architectures with dif-
ferent word sizes.
See AlsoXtMergeArgLists(1), XtNumber(1).
Xt - Argument Lists XtSetArg()