int main() {
int i = 0;
const char *err;
while (1) {
if (!mem_info(&err))
fprintf(stderr, "Mem info failed: %s\n", err);
if (!cpu_info(&err))
fprintf(stderr, "CPU info failed: %s\n", err);
if (!read_procs(&err))
fprintf(stderr, "Process info failed: %s\n", err);
printf("%d\n", i++);
usleep(50000);
}
}
int top_main(int argc, char *argv[]) {
int i;
num_used_procs = num_free_procs = 0;
max_procs = 0;
delay = 3;
iterations = -1;
proc_cmp = &proc_cpu_cmp;
for (i = 1; i < argc; i++) {
if (!strcmp(argv[i], "-m")) {
if (i + 1 >= argc) {
fprintf(stderr, "Option -m expects an argument.\n");
usage(argv[0]);
exit(EXIT_FAILURE);
}
max_procs = atoi(argv[++i]);
continue;
}
if (!strcmp(argv[i], "-n")) {
if (i + 1 >= argc) {
fprintf(stderr, "Option -n expects an argument.\n");
usage(argv[0]);
exit(EXIT_FAILURE);
}
iterations = atoi(argv[++i]);
continue;
}
if (!strcmp(argv[i], "-d")) {
if (i + 1 >= argc) {
fprintf(stderr, "Option -d expects an argument.\n");
usage(argv[0]);
exit(EXIT_FAILURE);
}
delay = atoi(argv[++i]);
continue;
}
if (!strcmp(argv[i], "-s")) {
if (i + 1 >= argc) {
fprintf(stderr, "Option -s expects an argument.\n");
usage(argv[0]);
exit(EXIT_FAILURE);
}
++i;
if (!strcmp(argv[i], "cpu")) { proc_cmp = &proc_cpu_cmp; continue; }
if (!strcmp(argv[i], "vss")) { proc_cmp = &proc_vss_cmp; continue; }
if (!strcmp(argv[i], "rss")) { proc_cmp = &proc_rss_cmp; continue; }
if (!strcmp(argv[i], "thr")) { proc_cmp = &proc_thr_cmp; continue; }
fprintf(stderr, "Invalid argument \"%s\" for option -s.\n", argv[i]);
exit(EXIT_FAILURE);
}
if (!strcmp(argv[i], "-t")) { threads = 1; continue; }
if (!strcmp(argv[i], "-h")) {
usage(argv[0]);
exit(EXIT_SUCCESS);
}
fprintf(stderr, "Invalid argument \"%s\".\n", argv[i]);
usage(argv[0]);
exit(EXIT_FAILURE);
}
if (threads && proc_cmp == &proc_thr_cmp) {
fprintf(stderr, "Sorting by threads per thread makes no sense!\n");
exit(EXIT_FAILURE);
}
free_procs = NULL;
num_new_procs = num_old_procs = 0;
new_procs = old_procs = NULL;
read_procs();
while ((iterations == -1) || (iterations-- > 0)) {
old_procs = new_procs;
num_old_procs = num_new_procs;
memcpy(&old_cpu, &new_cpu, sizeof(old_cpu));
sleep(delay);
read_procs();
print_procs();
free_old_procs();
}
return 0;
}
