From 00f8864dd373ea800b8527a405f8c82990e862ec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hugo=20H=C3=B6rnquist?= <hugo@lysator.liu.se>
Date: Thu, 14 Sep 2023 09:38:47 +0200
Subject: tor 14 sep 2023 09:38:47 CEST

---
 wiki.c | 30 ++++++++++++++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/wiki.c b/wiki.c
index e1805e0..e58b68d 100644
--- a/wiki.c
+++ b/wiki.c
@@ -21,6 +21,28 @@
 #include <sys/mman.h>
 #undef __BSD_VISIBLE
 
+#ifdef __linux__
+#include <linux/futex.h>
+#include <sys/syscall.h>
+#include <stdint.h>
+
+typedef uint32_t *futex_t;
+
+long futex_core(futex_t futex, int futex_op, uint32_t val, const struct timespec *timeout, uint32_t *uaddr2, uint32_t val3) {
+	return syscall(SYS_futex, uaddr, futex_op, val, timeout, uaddr2, val3);
+}
+
+futex_wait(futex_t futex, uint32_t val) {
+	futex_core(futex, FUTEX_WAIT, val, NULL, NULL, 0);
+}
+
+void suspend() {
+	futex(
+}
+
+void wake();
+#endif
+
 #include <syslog.h>
 #include <dirent.h>
 #include <unistd.h>
@@ -149,7 +171,9 @@ static void *start_thread(void *d) {
 	ssize_t len;
 
 	// kill(data->peer_pid, SIGUSR1);
+	fprintf(stderr, "We are here\n");
 	pthread_cond_signal(data->cond);
+	fprintf(stderr, "Signaled\n");
 	munmap(data->cond, sizeof data->cond);
 
 	struct timeval timeout = {
@@ -330,9 +354,10 @@ int main (int argc, const char *argv[]) {
 					{
 						pthread_mutex_t cond_mutex;
 						pthread_mutex_init(&cond_mutex, NULL);
-						fprintf(err, "Waiting on condition");
+						syslog(4, "Test of syslog");
+						fprintf(err, "Waiting on condition\n");
 						pthread_cond_wait(cond, &cond_mutex);
-						fprintf(err, "Awoken from condition");
+						fprintf(err, "Awoken from condition\n");
 						pthread_mutex_unlock(&cond_mutex);
 						pthread_mutex_destroy(&cond_mutex);
 					}
@@ -618,6 +643,7 @@ int wiki_do(const char *wiki_root,
 		return 0;
 	}
 	if (cmp("echo", command[0])) {
+		syslog(3, "-- %s --", wiki);
 		char *buf = malloc(0x100);
 		// sprintf(buf, "/tmp/hugo/%i", getpid());
 		// FILE *log = fopen("/tmp/hugo/log", "a");
-- 
cgit v1.2.3