80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/*######################################################################
|
|
# #
|
|
# This file contains some general utility functions for wmSMPmon. #
|
|
# #
|
|
# All of them were taken from the program 'top' from the procps #
|
|
# suite. #
|
|
# With thanks to the author of top: #
|
|
# James C. Warner <warnerjc@worldnet.att.net> #
|
|
# #
|
|
# This file is placed under the conditions of the GNU Library #
|
|
# General Public License, version 2, or any later version. #
|
|
# See file COPYING for information on distribution conditions. #
|
|
# #
|
|
######################################################################*/
|
|
|
|
#include "standards.h"
|
|
#include "general.h"
|
|
|
|
/*
|
|
* The usual program end --
|
|
* called only by functions in this section. */
|
|
void bye_bye(int eno, const char *str)
|
|
{
|
|
fflush(stdout);
|
|
if (str) {
|
|
if (eno)
|
|
perror(str);
|
|
else {
|
|
fputs(str, stderr);
|
|
eno = 1;
|
|
}
|
|
}
|
|
exit(eno);
|
|
}
|
|
|
|
/*
|
|
* This routine simply formats whatever the caller wants and
|
|
* returns a pointer to the resulting 'const char' string... */
|
|
const char *fmtmk(const char *fmts, ...)
|
|
{
|
|
static char buf[BIGBUFSIZ]; /* with help stuff, our buffer */
|
|
va_list va; /* requirements exceed 1k */
|
|
|
|
va_start(va, fmts);
|
|
vsnprintf(buf, sizeof(buf), fmts, va);
|
|
va_end(va);
|
|
return ((const char *)buf);
|
|
}
|
|
|
|
/*
|
|
* Standard error handler to normalize the look of all err o/p */
|
|
void std_err(const char *str)
|
|
{
|
|
static char buf[SMLBUFSIZ];
|
|
|
|
fflush(stdout);
|
|
/* we'll use our own buffer so callers can still use fmtmk()
|
|
* and, yes the leading tab is not the standard convention,
|
|
* but the standard is wrong -- OUR msg won't get lost in
|
|
* screen clutter, like so many others! */
|
|
snprintf(buf, sizeof(buf), "\t%s: %s\n", Myname, str);
|
|
|
|
/* not to worry, he'll change our exit code to 1 due to 'buf' */
|
|
bye_bye(0, buf);
|
|
}
|
|
|
|
/*
|
|
* Handle our own memory stuff without the risk of leaving the
|
|
* user's terminal in an ugly state should things go sour. */
|
|
void *alloc_c(unsigned numb)
|
|
{
|
|
void * p;
|
|
|
|
if (!numb)
|
|
++numb;
|
|
if (!(p = calloc(1, numb)))
|
|
std_err("failed memory allocate");
|
|
return (p);
|
|
}
|