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auxstats: use acpi to find battery info on Linux (Andrey Mirtchovski)

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This commit is contained in:
Russ Cox 2007-09-15 19:06:48 -04:00
parent d96dce4d87
commit 7be768e78c
1 changed files with 26 additions and 5 deletions
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31
src/cmd/auxstats/Linux.c
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@ -22,16 +22,37 @@ void (*statfn[])(int) =
void void
xapm(int first) xapm(int first)
{ {
static int fd = -1; static int fd = -1, fdb = -1;
int i, last = -1, curr = -1;
if(first){ if(first){
fd = open("/proc/apm", OREAD); fd = open("/proc/acpi/battery/BAT0/info", OREAD);
fdb = open("/proc/acpi/battery/BAT0/state", OREAD);
return; return;
} }
if(fd == -1 || fdb == -1)
return;
readfile(fd); readfile(fd);
tokens(0); for(i=0; i<nline; i++){
if(ntok >= 7 && atoi(tok[6]) != -1) tokens(i);
Bprint(&bout, "battery =%d 100\n", atoi(tok[6])); if(ntok < 3)
continue;
if(strcmp(tok[0], "last") == 0 && strcmp(tok[1], "full") == 0)
last = atoi(tok[3]);
}
readfile(fdb);
for(i = 0; i < nline; i++) {
tokens(i);
if(ntok < 3)
continue;
if(strcmp(tok[0], "remaining") == 0 && strcmp(tok[1], "capacity:") == 0)
curr = atoi(tok[2]);
}
if(curr != -1 && last != -1)
Bprint(&bout, "battery =%d 100\n", (int)(((float)curr/(float)last)*100.0));
} }
void void