284 lines
6.2 KiB
C
284 lines
6.2 KiB
C
/*
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* E-Wireless.c - 802.11 Signal quality montioring epplet
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* copyleft (C) Mark C. Langston 1999
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* Damn near all the code originally from: cocidius@telebot.net
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* and his E-CpuX Epplet.
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*/
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#include <stdio.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <signal.h>
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#include <sys/wait.h>
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#include <errno.h>
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#include <epplet.h>
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#define HEIGHT 30
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#define WIDTH 40
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Window win;
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RGB_buf buf;
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Epplet_gadget da,btn_close,btn_config,btn_about;
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Epplet_gadget lbl_cpu,lbl_usage,popup;
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int num_cpus=0;
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int cur_cpu=0;
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int cpu_hist_size=0;
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int *cpu_hist=NULL;
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int hist_pos=0;
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int color=0;
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unsigned long prev_total=0;
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unsigned long prev_out=0;
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unsigned long prev_in=0;
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unsigned char colors[7][3][3]={
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{{0x00,0x23,0x00},{0x00,0x50,0x00},{0x00,0xff,0x00}}, //green
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{{0x00,0x00,0x23},{0x00,0x00,0x50},{0x00,0x00,0xff}}, //blue
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{{0x23,0x00,0x00},{0x50,0x00,0x00},{0xff,0x00,0x00}}, //red
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{{0x23,0x23,0x00},{0x50,0x50,0x00},{0xff,0xff,0x00}}, //yellow
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{{0x00,0x23,0x23},{0x00,0x50,0x50},{0x00,0xff,0xff}}, //cyan
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{{0x23,0x00,0x23},{0x50,0x00,0x50},{0xff,0x00,0xff}}, //magenta
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{{0x23,0x23,0x23},{0x50,0x50,0x50},{0xff,0xff,0xff}}, //gray
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};
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static void cb_timer(void *data);
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static void cb_in(void *data, Window w);
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static void cb_out(void *data, Window w);
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static void cb_close(void *data);
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static void cb_config(void *data);
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static void cb_color(void *data);
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static void cb_about(void *data);
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int count_cpus(void);
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void draw_line(unsigned char *rgb, int x1, int y1, int x2, int y2, unsigned char *clr)
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{
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unsigned char *rptr;
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int i,steep=0,sx,sy,dx,dy,e;
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dx=abs(x2-x1);
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sx=((x2-x1)>0) ? 1 : -1;
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dy=abs(y2-y1);
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sy=((y2-y1)>0) ? 1 : -1;
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if(dy>dx) {
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steep=1;
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x1^=y1; y1^=x1; x1^=y1;
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dx^=dy; dy^=dx; dx^=dy;
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sx^=sy; sy^=sx; sx^=sy;
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}
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e=2*dy-dx;
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for(i=0;i<dx;i++) {
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if(steep) {
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rptr=rgb+(((x1*WIDTH)+y1)*4);
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} else {
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rptr=rgb+(((y1*WIDTH)+x1)*4);
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}
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rptr[0]=clr[0];
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rptr[1]=clr[1];
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rptr[2]=clr[2];
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while(e>=0) {
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y1+=sy;
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e-=2*dx;
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}
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x1+=sx;
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e+=2*dy;
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}
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rptr=rgb+(((y2*WIDTH)+x2)*4);
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rptr[0]=clr[0];
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rptr[1]=clr[1];
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rptr[2]=clr[2];
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}
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void draw_graph(void)
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{
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unsigned char *rgb,*rptr;
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int i,j,h,x,y,y1;
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rgb=Epplet_get_rgb_pointer(buf);
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for(y=0;y<HEIGHT;y++) {
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rptr=rgb+(y*WIDTH*4);
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for(x=0;x<WIDTH;x++) {
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rptr[0]=colors[color][0][0];
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rptr[1]=colors[color][0][1];
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rptr[2]=colors[color][0][2];
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rptr+=4;
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}
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}
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draw_line(rgb,0,6,WIDTH-1,6,&colors[color][1][0]);
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draw_line(rgb,0,14,WIDTH-1,14,&colors[color][1][0]);
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draw_line(rgb,0,22,WIDTH-1,22,&colors[color][1][0]);
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draw_line(rgb,9,0,9,HEIGHT-1,&colors[color][1][0]);
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draw_line(rgb,19,0,19,HEIGHT-1,&colors[color][1][0]);
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draw_line(rgb,29,0,29,HEIGHT-1,&colors[color][1][0]);
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j=((hist_pos+1)%WIDTH);
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y=HEIGHT-((HEIGHT*cpu_hist[j])/100);
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for(i=0;i<WIDTH-1;i++) {
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j++; j%=WIDTH;
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y1=HEIGHT-((HEIGHT*cpu_hist[j])/100);
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if(y1>=HEIGHT) y1=HEIGHT-1;
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if(y1<0) y1=0;
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draw_line(rgb,i,y,i+1,y1,&colors[color][2][0]);
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y=y1;
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}
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}
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static void cb_timer(void *data)
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{
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FILE *fpStat;
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int i,percent;
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double sigstr;
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char s[256],ss[64];
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unsigned long l0,l1,l2;
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fpStat=fopen("/proc/net/wireless","r");
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if(fpStat) {
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fgets(s,sizeof(s),fpStat);
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fgets(s,sizeof(s),fpStat);
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fgets(s,sizeof(s),fpStat);
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sscanf(s,"%*s %*s %s %*s %*s %*s %*s %*s",ss);
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sigstr = atof(ss);
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l0=sigstr;
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percent=(100*l0/92);
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if(percent>100) percent=100;
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cpu_hist[hist_pos]=percent;
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sprintf(ss,"%d%%",percent);
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Epplet_change_label(lbl_usage,ss);
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fclose(fpStat);
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draw_graph();
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hist_pos++;
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hist_pos%=WIDTH;
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Epplet_paste_buf(buf,win,0,0);
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Epplet_timer(cb_timer,NULL,1,"TIMER");
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}
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data=NULL;
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}
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static void cb_in(void *data, Window w)
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{
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Epplet_gadget_show(btn_close);
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Epplet_gadget_show(btn_config);
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Epplet_gadget_show(btn_about);
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}
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static void cb_out(void *data, Window w)
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{
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Epplet_gadget_hide(btn_close);
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Epplet_gadget_hide(btn_config);
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Epplet_gadget_hide(btn_about);
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}
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static void cb_close(void *data)
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{
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Epplet_unremember();
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Esync();
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data=NULL;
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free(cpu_hist);
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exit(0);
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}
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static void cb_about(void *data)
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{
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data=NULL;
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Epplet_show_about("E-Wireless");
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}
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static void cb_config(void *data)
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{
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data=NULL;
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Epplet_gadget_show(popup);
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}
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static void cb_color(void *data)
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{
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char s[2]={0,0};
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color=(int)data;
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s[0]='0'+color;
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Epplet_modify_config("color",s);
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Epplet_save_config();
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Epplet_gadget_hide(popup);
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}
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int main(int argc, char *argv[])
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{
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char s[64],*ptr;
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int priority;
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Epplet_gadget p;
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priority=getpriority(PRIO_PROCESS,getpid());
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setpriority(PRIO_PROCESS,getpid(),priority+10);
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atexit(Epplet_cleanup);
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cpu_hist_size=WIDTH;
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cpu_hist=(int*)malloc(sizeof(int)*cpu_hist_size);
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memset(cpu_hist,0x00,sizeof(int)*cpu_hist_size);
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hist_pos=0;
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Epplet_Init("E-WIRELESS","0.1","E 802.11 signal monitoring epplet",
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3,3,argc,argv,0);
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Epplet_load_config();
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Epplet_timer(cb_timer,NULL,1,"TIMER");
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Epplet_gadget_show(da=Epplet_create_drawingarea(2,2,WIDTH+4,HEIGHT+4));
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win=Epplet_get_drawingarea_window(da);
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buf=Epplet_make_rgb_buf(WIDTH,HEIGHT);
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btn_close=Epplet_create_button(NULL,NULL,0,0,0,0,"CLOSE",win,NULL,
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cb_close,NULL);
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btn_config=Epplet_create_button(NULL,NULL,28,0,0,0,"CONFIGURE",win,NULL,
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cb_config,NULL);
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btn_about=Epplet_create_button(NULL,NULL,14,0,0,0,"HELP",win,NULL,
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cb_about,NULL);
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sprintf(s,"Signal:");
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Epplet_gadget_show(lbl_cpu=Epplet_create_label(2,36,s,1));
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Epplet_gadget_show(lbl_usage=Epplet_create_label(-3,36,"0%",1));
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p=Epplet_create_popup();
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Epplet_add_popup_entry(p,"Green", NULL,cb_color,(void*)0L);
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Epplet_add_popup_entry(p,"Blue", NULL,cb_color,(void*)1L);
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Epplet_add_popup_entry(p,"Red", NULL,cb_color,(void*)2L);
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Epplet_add_popup_entry(p,"Yellow", NULL,cb_color,(void*)3L);
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Epplet_add_popup_entry(p,"Cyan", NULL,cb_color,(void*)4L);
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Epplet_add_popup_entry(p,"Magenta",NULL,cb_color,(void*)5L);
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Epplet_add_popup_entry(p,"Gray", NULL,cb_color,(void*)6L);
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popup=Epplet_create_popupbutton("Colors",NULL,6,24,36,12,NULL,p);
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Epplet_register_focus_in_handler(cb_in,NULL);
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Epplet_register_focus_out_handler(cb_out,NULL);
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ptr=Epplet_query_config_def("color","0");
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color=*ptr-'0';
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Epplet_show();
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Epplet_Loop();
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return(0);
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}
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