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/*
cxc@web.fm, 200203
interface to the linux proc filesystem
TODO: stat, number of users, network stats (tx,rx,etc)
*/
#include "m_pd.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
//#include <unistd.h>
// later for number of users
// #include <utmp.h>
/* support older Pd versions without sys_fopen(), sys_fclose(), and, sys_close() */
#if PD_MAJOR_VERSION == 0 && PD_MINOR_VERSION < 44
#define sys_fopen fopen
#define sys_fclose fclose
#define sys_close close
#endif
#ifndef SSIZE_MAX
#define SSIZE_MAX 255
#endif
#ifndef RAND_MAX
#define RAND_MAX 2147483647
#endif
#ifndef MAXOUTAT
#define MAXOUTAT 50
#endif
t_class *proc_class;
typedef struct proc
{
t_object x_obj;
// t_float x_RM;
t_atom x_at[MAXOUTAT];
int x_atc;
} t_proc;
void proc_float(t_proc *x, t_floatarg f)
{
post("cxc/proc.c: %f", f);
}
void proc_cpuinfo(t_proc *x)
{
char name[255]; // filename
char rest[255]; // string value
t_float restf; // float value
char bla[1];
FILE* fp; // info file descriptor
// t_float val;
int ac; // atom count
t_atom* at = x->x_at; // out atom
int atc = x->x_atc; // out atom count
//name = "/proc/cpuinfo";
sprintf(name,"%s","/proc/cpuinfo");
//val = 0;
restf = 0;
ac = 0;
fp = sys_fopen(name,"r");
if (!fp) {
post("cxc/proc.c: unable to open %s",name);
return;
}
//*name = 0;
while(!feof(fp))
{
/* fread(bla,1,1,fp); */
/* post("cxc/proc.c: '%s'",bla); */
//ac = fscanf(fp,"%s\t: %s",name,rest);
ac = fscanf(fp,"%s\t: %f",name,&restf);
// fscanf(fp,"%s\t%s %d",name,rest,&val);
if((!strcmp("MHz",name) ||
!strcmp("processor",name) ||
!strcmp("bogomips",name)) &&
ac != -1)
{
if(!strcmp("MHz",name)) {
//val = (t_float)sprintf("%f",rest);
SETFLOAT(at+atc,restf);
atc++;
} else if (!strcmp("processor",name)) {
SETFLOAT(at+atc,restf);
atc++;
} else if (!strcmp("bogomips",name)) {
SETFLOAT(at+atc,restf);
atc++;
}
#ifdef DEBUG
post("cxc/proc.c: count %d, '%s' -> '%f'",ac,name,restf);
#endif
}
}
outlet_anything(x->x_obj.ob_outlet, gensym("cpuinfo"),atc,at);
}
/////////////////////////////////////////////////////////////////
// more generic proc function: file to open is the message itself
void proc_proc(t_proc *x, t_symbol *s)
{
char name[255]; // filename
char rest[255]; // string value
t_float restf; // float value
t_float restg; // another float, needing more etc
t_float resth; // another float, needing more etc
// unsmart, convert the whole line
// into an atom vector or something ...
int a,b,c; // few helper ints for scanf
char bla[1];
FILE* fp; // info file descriptor
// t_float val;
int ac; // atom count
t_atom* at = x->x_at; // out atom
int atc = x->x_atc; // out atom count
//post("cxc/proc.c: %s",s->s_name);
//sprintf(name,"%s","/proc/cpuinfo");
sprintf(name,"/proc/%s",s->s_name);
//val = 0;
restf = 0;
ac = 0;
fp = sys_fopen(name,"r");
if (!fp) {
post("cxc/proc.c: unable to open %s",name);
return;
}
//*name = 0;
while(!feof(fp)) {
/* fread(bla,1,1,fp); */
/* post("cxc/proc.c: '%s'",bla); */
//ac = fscanf(fp,"%s\t: %s",name,rest);
// ac = fscanf(fp,"%s\t: %f",name,&restf);
// fscanf(fp,"%s\t%s %d",name,rest,&val);
//////////////////////////////////////////////////
// cpuinfo (rel. compl. parse)
if(!strcmp("cpuinfo",s->s_name)) {
ac = fscanf(fp,"%s\t: %f",name,&restf);
#ifdef DEBUG
if((!strcmp("MHz",name) ||
!strcmp("processor",name) ||
!strcmp("bogomips",name)) &&
ac != -1) {
post("cxc/proc.c: count %d, '%s' -> '%f'",ac,name,restf);
}
#endif
if(!strcmp("MHz",name)) {
//val = (t_float)sprintf("%f",rest);
SETFLOAT(at+atc,restf);
atc++;
} else if (!strcmp("processor",name)) {
SETFLOAT(at+atc,restf);
atc++;
} else if (!strcmp("bogomips",name)) {
SETFLOAT(at+atc,restf);
atc++;
}
//////////////////////////////////////////////////
// uptime (easy, just two floats ...
} else if (!strcmp("uptime",s->s_name)) {
ac = fscanf(fp,"%f %f",&restf,&restg);
SETFLOAT(at+atc,restf); atc++;
SETFLOAT(at+atc,restg); atc++;
// why break here?
break;
//////////////////////////////////////////////////
// loadavg
} else if (!strcmp("loadavg",s->s_name)) {
ac = fscanf(fp,"%f %f %f %d/%d %d",&restf,&restg,&resth,&a,&b,&c);
SETFLOAT(at+atc,restf); atc++;
SETFLOAT(at+atc,restg); atc++;
SETFLOAT(at+atc,resth); atc++;
SETFLOAT(at+atc,(t_float)a); atc++;
SETFLOAT(at+atc,(t_float)b); atc++;
SETFLOAT(at+atc,(t_float)c); atc++;
// why break here?
break;
//////////////////////////////////////////////////
// version (linux version)
} else if (!strcmp("version",s->s_name)) {
ac = fscanf(fp,"%s %s %d.%d.%d *",name,rest,&a,&b,&c);
SETFLOAT(at+atc,a); atc++;
SETFLOAT(at+atc,b); atc++;
SETFLOAT(at+atc,c); atc++;
// why break here?
break;
/* } else if (!strcmp("stat",s->s_name)) { */
/* break; */
} else {
post("cxc/proc.c: %s not yet implemented",s->s_name);
break;
}
}
fclose(fp);
outlet_anything(x->x_obj.ob_outlet, gensym(s->s_name),atc,at);
}
void *proc_new(void)
{
t_proc *x = (t_proc *)pd_new(proc_class);
x->x_atc = 0;
outlet_new(&x->x_obj, &s_anything);
return (void *)x;
}
void proc_setup(void)
{
// post("proc_setup");
proc_class = class_new(gensym("proc"), (t_newmethod)proc_new, 0,
sizeof(t_proc), 0, 0);
class_addmethod(proc_class, (t_method)proc_cpuinfo, gensym("cpuinfo"), 0);
class_addmethod(proc_class, (t_method)proc_proc, gensym("proc"), A_SYMBOL);
//class_addmethod(proc_class, (t_method)proc_RAND_MAX, gensym("RAND_MAX"), 0);
//class_addmethod(proc_class, (t_method)proc_getenv, gensym("getenv"), A_SYMBOL);
//class_addmethod(proc_class, (t_method)proc_setenv, gensym("setenv"), A_SYMBOL, A_SYMBOL);
class_addfloat(proc_class, proc_float);
}
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