From 0d05b3d13d42f8bebc74bb5f6da7e5e10c0e9933 Mon Sep 17 00:00:00 2001 From: Aaron Marcher Date: Sat, 19 May 2018 00:31:33 +0200 Subject: Add network speed functions --- components/netspeeds.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 components/netspeeds.c (limited to 'components') diff --git a/components/netspeeds.c b/components/netspeeds.c new file mode 100644 index 0000000..ef8bf93 --- /dev/null +++ b/components/netspeeds.c @@ -0,0 +1,53 @@ +/* See LICENSE file for copyright and license details. */ +#include +#include + +#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 -- cgit v1.2.3