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Add network speed functions

This commit is contained in:
Aaron Marcher 2018-05-19 00:31:33 +02:00
parent d0c68989cd
commit 0d05b3d13d
4 changed files with 59 additions and 0 deletions

View file

@ -16,6 +16,7 @@ COM =\
components/kernel_release\
components/keyboard_indicators\
components/load_avg\
components/netspeeds\
components/num_files\
components/ram\
components/run_command\

1
README
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@ -19,6 +19,7 @@ Features
- Kernel version
- Keyboard indicators
- Load average
- Network speeds (RX and TX)
- Number of files in a directory (hint: Maildir)
- Memory status (free memory, percentage, total memory and used memory)
- Swap status (free swap, percentage, total swap and used swap)

53
components/netspeeds.c Normal file
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@ -0,0 +1,53 @@
/* See LICENSE file for copyright and license details. */
#include <stdio.h>
#include <limits.h>
#include "../util.h"
#if defined(__linux__)
const char *
netspeed_rx(const char *interface)
{
static int valid;
static unsigned long long rxbytes;
unsigned long oldrxbytes;
extern const unsigned int interval;
char path[PATH_MAX];
oldrxbytes = rxbytes;
snprintf(path, sizeof(path), "/sys/class/net/%s/statistics/rx_bytes", interface);
if (pscanf(path, "%llu", &rxbytes) != 1) {
return NULL;
}
if (!valid) {
valid = 1;
return NULL;
}
return fmt_scaled((rxbytes - oldrxbytes) / interval * 1000);
}
const char *
netspeed_tx(const char *interface)
{
static int valid;
static unsigned long long txbytes;
unsigned long oldtxbytes;
extern const unsigned int interval;
char path[PATH_MAX];
oldtxbytes = txbytes;
snprintf(path, sizeof(path), "/sys/class/net/%s/statistics/tx_bytes", interface);
if (pscanf(path, "%llu", &txbytes) != 1) {
return NULL;
}
if (!valid) {
valid = 1;
return NULL;
}
return fmt_scaled((txbytes - oldtxbytes) / interval * 1000);
}
#elif defined(__OpenBSD__)
/* unimplemented */
#endif

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@ -37,6 +37,10 @@ const char *keyboard_indicators(void);
/* load_avg */
const char *load_avg(const char *);
/* netspeeds */
const char *netspeed_rx(const char *);
const char *netspeed_tx(const char *);
/* num_files */
const char *num_files(const char *);