slstatus/components/load_avg.c

/* See LICENSE file for copyright and license details. */
#include <stdio.h>
#include <stdlib.h>

#include "../util.h"
#include "../slstatus.h"

const char *
load_avg(void)
{
	double avgs[3];

	if (getloadavg(avgs, 3) < 0) {
		warn("getloadavg: Failed to obtain load average");
		return NULL;
	}

	return bprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
}
Added LICENSE statements to all source files 2017-09-17 23:45:03 +08:00			`/* See LICENSE file for copyright and license details. */`
Get rid of err.h as it is not portable Replace warn() and warnx() with fprintf() and add <stdio.h> where necessary. 2018-03-29 00:26:56 +08:00			`#include <stdio.h>`
Split into multiple files For multiple reasons the program is now split: - Make future porting to OpenBSD easier - Assign header includes to individiual functions - Make future program extensions easier - Recompile only changed parts 2017-09-17 22:18:17 +08:00			`#include <stdlib.h>`

Move components into dedicated subdirectory This brings us a lot more tidiness. 2017-09-24 21:33:01 +08:00			`#include "../util.h"`
components/*.c: include slstatus.h this gives the compiler a chance to check weather the prototype and definiton matches or not, which would catch issues like 3c47701. 2022-10-27 04:14:53 +08:00			`#include "../slstatus.h"`
Split into multiple files For multiple reasons the program is now split: - Make future porting to OpenBSD easier - Assign header includes to individiual functions - Make future program extensions easier - Recompile only changed parts 2017-09-17 22:18:17 +08:00
			`const char *`
Remove fmt from load_avgs for consistency In a later commit something like that will be enabled for every component 2018-05-21 20:14:45 +08:00			`load_avg(void)`
Split into multiple files For multiple reasons the program is now split: - Make future porting to OpenBSD easier - Assign header includes to individiual functions - Make future program extensions easier - Recompile only changed parts 2017-09-17 22:18:17 +08:00			`{`
			`double avgs[3];`

			`if (getloadavg(avgs, 3) < 0) {`
Add warn() and die() Given slstatus is a tool that runs in the background, most likely run from .xinitrc, it's important to prepend the name of the tool to error messages so it becomes clear where the error is coming from. To make this much more consistent, this commit adds warn() and die() utility functions consistent with other suckless projects and adapts all calls to fprintf(stderr, *) to the warn() and die() functions, greatly increasing the readability of the code. 2018-05-18 16:59:05 +08:00			`warn("getloadavg: Failed to obtain load average");`
Split into multiple files For multiple reasons the program is now split: - Make future porting to OpenBSD easier - Assign header includes to individiual functions - Make future program extensions easier - Recompile only changed parts 2017-09-17 22:18:17 +08:00			`return NULL;`
			`}`

Remove fmt from load_avgs for consistency In a later commit something like that will be enabled for every component 2018-05-21 20:14:45 +08:00			`return bprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);`
Split into multiple files For multiple reasons the program is now split: - Make future porting to OpenBSD easier - Assign header includes to individiual functions - Make future program extensions easier - Recompile only changed parts 2017-09-17 22:18:17 +08:00			`}`