start on a more complex example

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

1 files changed, 27 insertions, 0 deletions

diff --git a/doc/examples/daemon-depedencies/announce.c b/doc/examples/daemon-depedencies/announce.c
new file mode 100644
index 0000000..3aacb55
--- /dev/null
+++ b/doc/examples/daemon-depedencies/announce.c
@@ -0,0 +1,27 @@
+#include <bus.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#define t(stmt)  if (stmt) goto fail
+
+
+static char arg[4098];
+
+
+int main(int argc, char *argv[])
+{
+	bus_t bus;
+	if (argc < 3)
+		return fprintf(stderr, "USAGE: %s state daemon", *argv), 2;
+	t(bus_open(&bus, getenv("BUS_INIT"), BUS_WRONLY));
+	sprintf(arg, "%ji %s %s", (intmax_t)getppid(), argv[1], argv[2]);
+	t(bus_write(&bus, arg));
+	t(bus_close(&bus));
+	return 0;
+
+fail:
+	perror("announce");
+	return 1;
+}