process: associate open connections with clients

process.h

@@ -30,6 +30,16 @@
 #define __PROCESS_H__
 
 #include <unistd.h>
+#include "clients.h"
+
+struct child {
+	pid_t pid;
+	time_t age;
+	struct client_cache_s *client;
+};
+
+extern struct child *children;
+extern int number_of_children;
 
 /**
  * Fork a new child (just like fork()) but keep track of how many childs are
@@ -37,7 +47,7 @@
  * @return -1 if it couldn't fork, 0 in the child process, the pid of the
  *         child process in the parent process.
  */
-pid_t process_fork(void);
+pid_t process_fork(struct client_cache_s *client);
 
 /**
  * Handler to be called upon receiving SIGCHLD. This signal is received by the
@@ -63,4 +73,9 @@ int process_daemonize(void);
  */
 int process_check_if_running(const char *fname);
 
+/**
+ * Kill all child processes
+ */
+void process_reap_children(void);
+
 #endif // __PROCESS_H__