start on a more complex example

Signed-off-by: Mattias Andrée <maandree@operamail.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/doc/examples/daemon-depedencies/start-daemon.c b/doc/examples/daemon-depedencies/start-daemon.c
new file mode 100644
index 0000000..acb85ad
--- /dev/null
+++ b/doc/examples/daemon-depedencies/start-daemon.c
@@ -0,0 +1,31 @@
+#include <bus.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define t(stmt)  if (stmt) goto fail
+
+
+static char arg[4098];
+
+
+int main(int argc, char *argv[])
+{
+	if (argc != 2)
+		return fprintf(stderr, "This program should be called from ./init\n"), 2;
+
+	sprintf(arg, "grep '^%s$' < \"${XDG_RUNTIME_DIR}/started-daemons\" >/dev/null", argv[1]);
+	if (!WEXITSTATUS(system(arg)))
+		return 0;
+	sprintf(arg, "grep '^%s$' < \"${XDG_RUNTIME_DIR}/ready-daemons\" >/dev/null", argv[1]);
+	if (!WEXITSTATUS(system(arg)))
+		return 0;
+
+	sprintf(arg, "./%s", argv[1]);
+	execlp(arg, arg, NULL);
+	perror("start-daemon");
+	return 1;
+}
+