From 16d3ccb1dd701665b1b138a48b4701108c141361 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@helsinki.at>
Date: Fri, 20 Nov 2009 14:03:35 +0000
Subject: added event reading


diff --git a/datatypes.h b/datatypes.h
index 36d018b..1168ec6 100644
--- a/datatypes.h
+++ b/datatypes.h
@@ -42,7 +42,7 @@ typedef struct buffer_struct buffer_t;
 
 struct read_buffer_struct {
   u_int32_t offset;
-  u_int8_t buf[100];
+  u_int8_t buf[1024];
 };
 typedef struct read_buffer_struct read_buffer_t;
 
diff --git a/rhdropbox.c b/rhdropbox.c
index bbf4509..2478616 100644
--- a/rhdropbox.c
+++ b/rhdropbox.c
@@ -35,6 +35,7 @@
 
 #include "daemon.h"
 #include "utils.h"
+#include "sysexec.h"
 
 enum cmd_id_enum { ADD, REMOVE, STATUS, LOG, LISTEN };
 typedef enum cmd_id_enum cmd_id_t;
@@ -58,16 +59,29 @@ int send_response(int fd, const char* response)
   return ret;
 }
 
-int process_watch(int inotify_fd)
+int process_watch(int inotify_fd, read_buffer_t* buffer, options_t* opt)
 {
-  log_printf(INFO, "something changed on watch descriptor '%d'", inotify_fd);
-  u_int8_t buf[1000];
-  int ret = read(inotify_fd, buf, 1000);
-  if(ret < 0) {
-    log_printf(ERROR, "read inotify_fd error: %s", strerror(errno));
-    return ret;
-  }
+  log_printf(DEBUG, "something changed on watch descriptor '%d'", inotify_fd);
+
+  int ret = 0;
+  for(;;) {
+    ret = read(inotify_fd, &buffer->buf[buffer->offset], sizeof(buffer->buf) - buffer->offset);
+    if(!ret) {
+      log_printf(ERROR, "read from inotfiy fd returned end of file!?");
+      return -1;
+    }
+    if(ret == -1 && errno == EAGAIN)
+      return 0;
+    else if(ret < 0)
+      return ret;
 
+    buffer->offset += ret;
+    for(;;) {
+      if(buffer->offset >= sizeof(struct inotify_event)) {
+        struct inotify_event* event;
+        event = (struct inotify_event*)buffer->buf;
+        u_int32_t len = sizeof(struct inotify_event) + event->len;
+        if(buffer->offset >= len) {
 /*     client_t* client; */
 /*     int listener_cnt = 0; */
 /*     for(client = client_lst; client; client = client->next) */
@@ -76,8 +90,21 @@ int process_watch(int inotify_fd)
 /*         listener_cnt++; */
 /*       } */
 /*     log_printf(DEBUG, "sent status to %d additional listeners", listener_cnt); */
-
-  log_printf(DEBUG, "received %d bytes from watch", ret);
+          log_printf(DEBUG, "received event for %d (mask=0x%08X, cookie=0x%08X name[%u]='%s')", 
+                     event->wd, event->mask, event->cookie, event->len, event->len > 0 ? event->name : "");
+          
+          if(buffer->offset > len) {
+            memmove(buffer->buf, &buffer->buf[len], buffer->offset - len);
+            buffer->offset -= len;
+          }
+          else
+            buffer->offset = 0;
+        }
+      }
+      else
+        break;
+    }
+  }
   return 0;
 }
 
@@ -254,8 +281,8 @@ int main_loop(int cmd_listen_fd, int inotify_fd, options_t* opt)
   int max_fd = (cmd_listen_fd < inotify_fd) ? inotify_fd : cmd_listen_fd;
   client_t* client_lst = NULL;
 
-  read_buffer_t switch_buffer;
-  switch_buffer.offset = 0;
+  read_buffer_t event_buffer;
+  event_buffer.offset = 0;
 
   watch_list_t watch_lst;
   watch_list_init(&watch_lst);
@@ -287,7 +314,7 @@ int main_loop(int cmd_listen_fd, int inotify_fd, options_t* opt)
     }
    
     if(FD_ISSET(inotify_fd, &tmpfds)) {
-      return_value = process_watch(inotify_fd);
+      return_value = process_watch(inotify_fd, &event_buffer, opt);
       if(return_value)
         break;
     }
-- 
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