Working through the weather update pub/sub example

zeromq/.gitignore

@@ -1,2 +1,3 @@
 hwserver
 hwclient
+wuserver

zeromq/Makefile

@@ -1,16 +1,13 @@
 CFLAGS += -I. -I/usr/local/include
 LDFLAGS += -lstdc++ -lpthread -luuid -lrt
+LIBZMQ := /usr/local/lib/libzmq.a
 
 
-all: hwserver hwclient
+%:%.c
+	$(CC) $(CFLAGS) -o $@ $^ $(LIBZMQ) $(LDFLAGS)
 
 
-hwserver: hwserver.c /usr/local/lib/libzmq.a
-	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
-
-
-hwclient: hwclient.c /usr/local/lib/libzmq.a
-	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+all: hwserver hwclient wuserver
 
 
 .PHONY: all

zeromq/wuserver.c

@@ -0,0 +1,24 @@
+#include "zhelpers.h"
+
+int main(void)
+{
+    void *context = zmq_init(1);
+    void *publisher = zmq_socket(context, ZMQ_PUB);
+    zmq_bind(publisher, "tcp://*:5556");
+    zmq_bind(publisher, "ipc://weather.ipc");
+
+    srandom((unsigned) time (NULL));
+    while (1) {
+        int zipcode, temperature, relhumidity;
+        zipcode = randof(100000);
+        temperature = randof(215) - 80;
+        relhumidity = randof(50) + 10;
+
+        char update[20];
+        sprintf(update, "%05d %d %d", zipcode, temperature, relhumidity);
+        s_send(publisher, update);
+    }
+    zmq_close(publisher);
+    zmq_term(context);
+    return 0;
+}