Nicer top command.

- Configurable refresh interval.
- Switch between cumulative count or current rate.
- Configurable sorting.
This commit is contained in:
Guus Sliepen 2011-05-15 16:30:13 +02:00
parent 4574b04f79
commit 6d97cb1e22
2 changed files with 247 additions and 30 deletions

View file

@ -12,7 +12,7 @@ tincd_SOURCES = \
tincctl_SOURCES = \ tincctl_SOURCES = \
xmalloc.c utils.c getopt.c getopt1.c dropin.c \ xmalloc.c utils.c getopt.c getopt1.c dropin.c \
tincctl.c rsagen.c list.c tincctl.c rsagen.c
if TUNEMU if TUNEMU
tincd_SOURCES += bsd/tunemu.c tincd_SOURCES += bsd/tunemu.c

275
src/top.c
View file

@ -22,45 +22,262 @@
#include <curses.h> #include <curses.h>
#include "control_common.h" #include "control_common.h"
#include "list.h"
#include "tincctl.h" #include "tincctl.h"
#include "top.h" #include "top.h"
#include "xalloc.h"
typedef struct nodestats_t {
char *name;
uint64_t in_packets;
uint64_t in_bytes;
uint64_t out_packets;
uint64_t out_bytes;
float in_packets_rate;
float in_bytes_rate;
float out_packets_rate;
float out_bytes_rate;
bool known;
} nodestats_t;
const char *const sortname[] = {
"name",
"in pkts",
"in bytes",
"out pkts",
"out bytes",
"tot pkts",
"tot bytes",
};
int sortmode = 0;
bool cumulative = false;
static list_t node_list;
static struct timeval now, prev, diff;
static int delay = 1000;
static bool running = true;
static void update(int fd) {
sendline(fd, "%d %d", CONTROL, REQ_DUMP_TRAFFIC);
gettimeofday(&now, NULL);
timersub(&now, &prev, &diff);
prev = now;
float interval = diff.tv_sec + diff.tv_usec * 1e-6;
char line[4096];
char name[4096];
int code;
int req;
uint64_t in_packets;
uint64_t in_bytes;
uint64_t out_packets;
uint64_t out_bytes;
for(list_node_t *i = node_list.head; i; i = i->next) {
nodestats_t *node = i->data;
node->known = false;
}
while(recvline(fd, line, sizeof line)) {
int n = sscanf(line, "%d %d %s %"PRIu64" %"PRIu64" %"PRIu64" %"PRIu64, &code, &req, name, &in_packets, &in_bytes, &out_packets, &out_bytes);
if(n == 2)
break;
if(n != 7) {
endwin();
fprintf(stderr, "Error receiving traffic information\n");
exit(1);
}
nodestats_t *found = NULL;
for(list_node_t *i = node_list.head; i; i = i->next) {
nodestats_t *node = i->data;
int result = strcmp(name, node->name);
if(result > 0) {
continue;
} if(result == 0) {
found = node;
break;
} else {
found = xmalloc_and_zero(sizeof *found);
found->name = xstrdup(name);
list_insert_after(&node_list, i, found);
break;
}
}
if(!found) {
found = xmalloc_and_zero(sizeof *found);
found->name = xstrdup(name);
list_insert_tail(&node_list, found);
}
found->known = true;
found->in_packets_rate = (in_packets - found->in_packets) / interval;
found->in_bytes_rate = (in_bytes - found->in_bytes) / interval;
found->out_packets_rate = (out_packets - found->out_packets) / interval;
found->out_bytes_rate = (out_bytes - found->out_bytes) / interval;
found->in_packets = in_packets;
found->in_bytes = in_bytes;
found->out_packets = out_packets;
found->out_bytes = out_bytes;
}
}
static void redraw() {
erase();
mvprintw(0, 0, "Tinc %-16s Nodes: %4d Sort: %-8s %s", netname, node_list.count, sortname[sortmode], cumulative ? "Cumulative" : "Current");
attrset(A_REVERSE);
mvprintw(2, 0, "Node IN pkts IN bytes OUT pkts OUT bytes");
chgat(-1, A_REVERSE, 0, NULL);
nodestats_t *sorted[node_list.count];
int n = 0;
for(list_node_t *i = node_list.head; i; i = i->next)
sorted[n++] = i->data;
int cmpfloat(float a, float b) {
if(a < b)
return -1;
else if(a > b)
return 1;
else
return 0;
}
int cmpu64(uint64_t a, uint64_t b) {
if(a < b)
return -1;
else if(a > b)
return 1;
else
return 0;
}
int sortfunc(const void *a, const void *b) {
const nodestats_t *na = *(const nodestats_t **)a;
const nodestats_t *nb = *(const nodestats_t **)b;
switch(sortmode) {
case 1:
if(cumulative)
return -cmpu64(na->in_packets, nb->in_packets);
else
return -cmpfloat(na->in_packets_rate, nb->in_packets_rate);
case 2:
if(cumulative)
return -cmpu64(na->in_bytes, nb->in_bytes);
else
return -cmpfloat(na->in_bytes_rate, nb->in_bytes_rate);
case 3:
if(cumulative)
return -cmpu64(na->out_packets, nb->out_packets);
else
return -cmpfloat(na->out_packets_rate, nb->out_packets_rate);
case 4:
if(cumulative)
return -cmpu64(na->out_bytes, nb->out_bytes);
else
return -cmpfloat(na->out_bytes_rate, nb->out_bytes_rate);
case 5:
if(cumulative)
return -cmpu64(na->in_packets + na->out_packets, nb->in_packets + nb->out_packets);
else
return -cmpfloat(na->in_packets_rate + na->out_packets_rate, nb->in_packets_rate + nb->out_packets_rate);
case 6:
if(cumulative)
return -cmpu64(na->in_bytes + na->out_bytes, nb->in_bytes + nb->out_bytes);
else
return -cmpfloat(na->in_bytes_rate + na->out_bytes_rate, nb->in_bytes_rate + nb->out_bytes_rate);
default:
return strcmp(na->name, nb->name);
}
}
qsort(sorted, n, sizeof *sorted, sortfunc);
int row = 3;
for(int i = 0; i < n; i++, row++) {
nodestats_t *node = sorted[i];
if(node->known)
if(node->in_packets_rate || node->out_packets_rate)
attrset(A_BOLD);
else
attrset(A_NORMAL);
else
attrset(A_DIM);
if(cumulative)
mvprintw(row, 0, "%-16s %'10"PRIu64" %'10"PRIu64" %'10"PRIu64" %'10"PRIu64,
node->name, node->in_packets, node->in_bytes, node->out_packets, node->out_bytes);
else
mvprintw(row, 0, "%-16s %'10.0f %'10.0f %'10.0f %'10.0f",
node->name, node->in_packets_rate, node->in_bytes_rate, node->out_packets_rate, node->out_bytes_rate);
}
attrset(A_NORMAL);
move(1, 0);
refresh();
}
void top(int fd) { void top(int fd) {
initscr(); initscr();
timeout(delay);
timeout(1000); while(running) {
update(fd);
redraw();
do { switch(getch()) {
sendline(fd, "%d %d", CONTROL, REQ_DUMP_TRAFFIC); case 's': {
timeout(-1);
erase(); float input = delay * 1e-3;
printw("Change delay from %.1fs to: ", input);
char line[4096]; scanw("%f", &input);
while(recvline(fd, line, sizeof line)) { if(input < 0.1)
char node[4096]; input = 0.1;
int code; delay = input * 1e3;
int req; timeout(delay);
uint64_t in_packets;
uint64_t in_bytes;
uint64_t out_packets;
uint64_t out_bytes;
int n = sscanf(line, "%d %d %s %"PRIu64" %"PRIu64" %"PRIu64" %"PRIu64, &code, &req, node, &in_packets, &in_bytes, &out_packets, &out_bytes);
if(n == 2)
break; break;
if(n != 7) {
fprintf(stderr, "Error receiving traffic information\n");
return;
} }
case 'c':
printw("%16s %8"PRIu64" %8"PRIu64" %8"PRIu64" %8"PRIu64"\n", node, in_packets, in_bytes, out_packets, out_bytes); cumulative = !cumulative;
break;
case 'n':
sortmode = 0;
break;
case 'i':
sortmode = 2;
break;
case 'I':
sortmode = 1;
break;
case 'o':
sortmode = 4;
break;
case 'O':
sortmode = 3;
break;
case 't':
sortmode = 6;
break;
case 'T':
sortmode = 5;
break;
case 'q':
case 27:
case KEY_BREAK:
running = false;
break;
default:
break;
} }
}
refresh();
} while(getch() == ERR);
endwin(); endwin();
} }