Initial commitHEADmain

1 files changed, 102 insertions, 0 deletions

diff --git a/old.c b/old.c
new file mode 100644
index 0000000..1f9e677
--- /dev/null
+++ b/old.c
@@ -0,0 +1,102 @@
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/inotify.h>
+#include <poll.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <libudev.h>
+
+static const char MONTHS[12][4] = {"Jan\0", "Feb\0", "Mar\0",
+	"Apr\0", "May\0", "Jun\0",
+	"Jul\0", "Aug\0", "Sep\0",
+	"Oct\0", "Nov\0", "Dec\0"
+};
+static const char DAYS[7][4] = {"Sun\0", "Mon\0", "Tue\0", "Wed\0", "Thu\0", "Fri\0", "Sat\0"};
+static const char PM[2][3] = {"AM\0", "PM\0"};
+
+static const char TLPS[3][4] = {"\0", "\0","\0"};
+
+struct sb26 {
+	char *date;
+	unsigned char tlp_status;
+	unsigned short mem_used;
+};
+
+void *watchers(void *arg)
+{
+	struct sb26 *sb = (struct sb26*)arg;
+	FILE *tlpf = fopen("/run/tlp/last_pwr", "r");
+	int inf = inotify_init();
+	int tlpw = inotify_add_watch(inf, "/run/tlp/last_pwr", IN_MODIFY);
+	ssize_t ev_s = sizeof(struct inotify_event) + NAME_MAX + 1;
+	struct pollfd pfd = {inf, POLLIN, 0};
+	struct inotify_event ev;
+
+	for (;;) {
+		fscanf(tlpf, "%hhu", &sb->tlp_status);
+		fseek(tlpf, 0, SEEK_SET);
+
+		poll(&pfd, 1, INT_MAX);
+		read(inf, (void *)&ev, ev_s);
+		if (ev.wd == tlpw) {
+			// TODO Handle other inotify watches
+		}
+	}
+	return NULL;
+}
+
+void tmfmt(char *tmf)
+{
+	struct tm tm_s;
+	time_t tm = time(NULL);
+	tzset();
+	localtime_r(&tm, &tm_s);
+	unsigned char hr = tm_s.tm_hour % 12;
+	if (hr == 0) hr = 12;
+	snprintf(tmf, 21, "%s %s %02d %02d:%02d %s", DAYS[tm_s.tm_wday], MONTHS[tm_s.tm_mon], tm_s.tm_mday, hr, tm_s.tm_min, PM[tm_s.tm_hour/12]);
+}
+
+void *watch_mem(void *arg)
+{
+	struct sb26 *sb = (struct sb26*)arg;
+	long total, avail;
+	char buf[25];
+	FILE *memf = fopen("/proc/meminfo", "r");
+
+	for (;;) {
+		fgets(buf, 25, memf);
+		/* strtol can handle arbitrary leading whitespace */
+		total = strtol((buf + 15), NULL, 10);
+		fseek(memf, 32, SEEK_CUR);
+
+		fgets(buf, 25, memf);
+		avail = strtol((buf + 15), NULL, 10);
+		unsigned int used = total - avail;
+		sb->mem_used = used >> 10;
+		fseek(memf, 0, SEEK_SET);
+	}
+
+	fclose(memf);
+}
+
+int main()
+{
+	char tmf[21];
+
+	struct sb26 sb = { NULL, 0 };
+	pthread_t watcher;
+	pthread_create(&watcher, NULL, &watchers, (void *) &sb);
+	pthread_t mem;
+	pthread_create(&mem, NULL, &watch_mem , (void *) &sb);
+
+	while (1) {
+		tmfmt(tmf);
+		printf("%d mB %s %s\n", sb.mem_used, tmf, TLPS[sb.tlp_status]);
+		sleep(1);
+	}
+
+	pthread_join(watcher, NULL);
+	return 0;
+}