split into separate executables

1 files changed, 0 insertions, 43 deletions

diff --git a/wg.c b/wg.c
deleted file mode 100644
index 3208aa1..0000000
--- a/wg.c
+++ /dev/null
@@ -1,43 +0,0 @@
-#include <unistd.h>
-#include <error.h>
-#include <errno.h>
-
-#include "wg.h"
-
-/* Thread management tools modeled on https://golang.org/pkg/sync/#WaitGroup */
-
-/* pthread_cond_t is overly complicated. Just use a self-pipe. */
-
-void wg_init(struct wg *wg) {
-	wg->count = 0;
-	pthread_mutex_init(&wg->lock, NULL);
-	int fds[2];
-	if (pipe(fds) != 0)
-		error(1, errno, "pipe");
-	wg->fd_wait = fds[0];
-	wg->fd_signal = fds[1];
-}
-
-void wg_add(struct wg *wg, unsigned int n) {
-	pthread_mutex_lock(&wg->lock);
-	wg->count += n;
-	pthread_mutex_unlock(&wg->lock);
-}
-
-void wg_sub(struct wg *wg, unsigned int n) {
-	pthread_mutex_lock(&wg->lock);
-	wg->count -= n;
-	if (wg->count == 0)
-		write(wg->fd_signal, " ", 1);
-	pthread_mutex_unlock(&wg->lock);
-}
-
-void wg_wait(struct wg *wg) {
-	char b;
- retry:
-	if (read(wg->fd_wait, &b, 1) == -1) {
-		if (errno == EINTR)
-			goto retry;
-		error(1, errno, "wg_wait");
-	}
-}