Add FIFO

wmfs2/src/fifo.c

@@ -0,0 +1,53 @@
+/*
+ *  wmfs2 by Martin Duquesnoy <xorg62@gmail.com> { for(i = 2011; i < 2111; ++i) ©(i); }
+ *  For license, see COPYING.
+ */
+
+#include "wmfs.h"
+#include "fifo.h"
+#include "config.h"
+
+#define FIFO_DEFAULT_PATH     "/tmp/wmfs-fifo"
+
+void
+fifo_init(void)
+{
+     W->fifo.path = FIFO_DEFAULT_PATH;
+
+     if(mkfifo(W->fifo.path, 0644) < 0 || !(W->fifo.fp = fopen(W->fifo.path, "w+")))
+     {
+          warnx("Can't create FIFO: %s\n", strerror(errno));
+          return;
+     }
+
+     fcntl(fileno(W->fifo.fp), F_SETFL, O_NONBLOCK);
+}
+
+static void
+fifo_parse(char *cmd)
+{
+     void (*func)(Uicb cmd);
+     char *uicb = strtok(cmd, " ");
+     char *arg  = strtok(NULL, "\n");
+
+     printf ("%s %s\n", uicb, arg);
+
+     func = uicb_name_func(uicb);
+     if(func)
+          func(arg);
+}
+
+void
+fifo_read(void)
+{
+     char buf[256] = {0};
+
+     /* Don't read it if not open */
+     if(!(W->fifo.fp)) return;
+
+     fread(buf, sizeof(buf) - 1, 1, W->fifo.fp);
+
+     if (buf[0])
+          fifo_parse(buf);
+}
+

wmfs2/src/fifo.h

@@ -0,0 +1,17 @@
+/*
+*  wmfs2 by Martin Duquesnoy <xorg62@gmail.com> { for(i = 2011; i < 2111; ++i) ©(i); }
+*  For license, see COPYING.
+*/
+
+#ifndef FIFO_H
+#define FIFO_H
+
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+void fifo_init(void);
+void fifo_read(void);
+
+#endif /* FIFO_H */

wmfs2/src/wmfs.c

@@ -15,6 +15,7 @@
 #include "util.h"
 #include "config.h"
 #include "client.h"
+#include "fifo.h"
 
 int
 wmfs_error_handler(Display *d, XErrorEvent *event)
@@ -213,8 +214,13 @@ wmfs_loop(void)
      XEvent ev;
 
      while(XPending(W->dpy))
+     {
           while(W->running && !XNextEvent(W->dpy, &ev))
+          {
                HANDLE_EVENT(&ev);
+               fifo_read();
+          }
+     }
 }
 
 static inline void
@@ -225,6 +231,7 @@ wmfs_init(void)
      screen_init();
      event_init();
      config_init();
+     fifo_init();
 }
 
 void
@@ -243,6 +250,10 @@ wmfs_quit(void)
      /* Conf stuffs */
      FREE_LIST(Keybind, W->h.keybind);
 
+     /* FIFO stuffs */
+     fclose(W->fifo.fp);
+     free(W->fifo.path);
+
      W->running = false;
 }
 

wmfs2/src/wmfs.h

@@ -207,6 +207,13 @@ struct Wmfs
       */
      Scr33n *screen;
 
+     /* FIFO */
+     struct
+     {
+          FILE *fp;
+          char *path;
+     } fifo;
+
 };
 
 int wmfs_error_handler(Display *d, XErrorEvent *event);