static void read_policy(int pid, struct proc_info *proc) {
SchedPolicy p;
if (get_sched_policy(pid, &p) < 0)
strlcpy(proc->policy, "unk", POLICY_NAME_LEN);
else {
strlcpy(proc->policy, get_sched_policy_name(p), POLICY_NAME_LEN);
proc->policy[2] = '\0';
}
}
static int ps_line(int pid, int tid, char *namefilter)
{
char statline[1024];
char cmdline[1024];
char macline[1024];
char user[32];
struct stat stats;
int fd, r;
char *ptr, *name, *state;
int ppid;
unsigned wchan, rss, vss, eip;
unsigned utime, stime;
int prio, nice, rtprio, sched, psr;
struct passwd *pw;
sprintf(statline, "/proc/%d", pid);
stat(statline, &stats);
if(tid) {
sprintf(statline, "/proc/%d/task/%d/stat", pid, tid);
cmdline[0] = 0;
snprintf(macline, sizeof(macline), "/proc/%d/task/%d/attr/current", pid, tid);
} else {
sprintf(statline, "/proc/%d/stat", pid);
sprintf(cmdline, "/proc/%d/cmdline", pid);
snprintf(macline, sizeof(macline), "/proc/%d/attr/current", pid);
fd = open(cmdline, O_RDONLY);
if(fd == 0) {
r = 0;
} else {
r = read(fd, cmdline, 1023);
close(fd);
if(r < 0) r = 0;
}
cmdline[r] = 0;
}
fd = open(statline, O_RDONLY);
if(fd == 0) return -1;
r = read(fd, statline, 1023);
close(fd);
if(r < 0) return -1;
statline[r] = 0;
ptr = statline;
nexttok(&ptr); // skip pid
ptr++; // skip "("
name = ptr;
ptr = strrchr(ptr, ')'); // Skip to *last* occurence of ')',
*ptr++ = '\0'; // and null-terminate name.
ptr++; // skip " "
state = nexttok(&ptr);
ppid = atoi(nexttok(&ptr));
nexttok(&ptr); // pgrp
nexttok(&ptr); // sid
nexttok(&ptr); // tty
nexttok(&ptr); // tpgid
nexttok(&ptr); // flags
nexttok(&ptr); // minflt
nexttok(&ptr); // cminflt
nexttok(&ptr); // majflt
nexttok(&ptr); // cmajflt
#if 1
utime = atoi(nexttok(&ptr));
stime = atoi(nexttok(&ptr));
#else
nexttok(&ptr); // utime
nexttok(&ptr); // stime
#endif
nexttok(&ptr); // cutime
nexttok(&ptr); // cstime
prio = atoi(nexttok(&ptr));
nice = atoi(nexttok(&ptr));
nexttok(&ptr); // threads
nexttok(&ptr); // itrealvalue
nexttok(&ptr); // starttime
vss = strtoul(nexttok(&ptr), 0, 10); // vsize
rss = strtoul(nexttok(&ptr), 0, 10); // rss
nexttok(&ptr); // rlim
nexttok(&ptr); // startcode
nexttok(&ptr); // endcode
nexttok(&ptr); // startstack
nexttok(&ptr); // kstkesp
eip = strtoul(nexttok(&ptr), 0, 10); // kstkeip
nexttok(&ptr); // signal
nexttok(&ptr); // blocked
nexttok(&ptr); // sigignore
nexttok(&ptr); // sigcatch
wchan = strtoul(nexttok(&ptr), 0, 10); // wchan
nexttok(&ptr); // nswap
nexttok(&ptr); // cnswap
nexttok(&ptr); // exit signal
psr = atoi(nexttok(&ptr)); // processor
rtprio = atoi(nexttok(&ptr)); // rt_priority
sched = atoi(nexttok(&ptr)); // scheduling policy
nexttok(&ptr); // tty
if(tid != 0) {
ppid = pid;
pid = tid;
}
pw = getpwuid(stats.st_uid);
if(pw == 0) {
sprintf(user,"%d",(int)stats.st_uid);
} else {
strcpy(user,pw->pw_name);
}
if(!namefilter || !strncmp(name, namefilter, strlen(namefilter))) {
if (display_flags & SHOW_MACLABEL) {
fd = open(macline, O_RDONLY);
strcpy(macline, "-");
if (fd >= 0) {
r = read(fd, macline, sizeof(macline)-1);
close(fd);
if (r > 0)
macline[r] = 0;
}
printf("%-30s %-9s %-5d %-5d %s\n", macline, user, pid, ppid, cmdline[0] ? cmdline : name);
return 0;
}
printf("%-9s %-5d %-5d %-6d %-5d", user, pid, ppid, vss / 1024, rss * 4);
if (display_flags & SHOW_CPU)
printf(" %-2d", psr);
if (display_flags & SHOW_PRIO)
printf(" %-5d %-5d %-5d %-5d", prio, nice, rtprio, sched);
if (display_flags & SHOW_POLICY) {
SchedPolicy p;
if (get_sched_policy(pid, &p) < 0)
printf(" un ");
else
printf(" %.2s ", get_sched_policy_name(p));
}
printf(" %08x %08x %s ", wchan, eip, state);
if (display_flags & SHOW_ABI) {
print_exe_abi(pid);
}
printf("%s", cmdline[0] ? cmdline : name);
if(display_flags&SHOW_TIME)
printf(" (u:%d, s:%d)", utime, stime);
printf("\n");
}
return 0;
}
