Added RERR_VANISHED.

[rsync/rsync.git] / fileio.c

diff --git a/fileio.c b/fileio.c
index e8eaa10..32480f7 100644 (file)
--- a/fileio.c
+++ b/fileio.c
@@ -105,7 +105,7 @@ int write_file(int f,char *buf,size_t len)
 struct map_struct *map_file(int fd,OFF_T len)
 {
        struct map_struct *map;
-       map = (struct map_struct *)malloc(sizeof(*map));
+       map = new(struct map_struct);
        if (!map) out_of_memory("map_file");
 
        map->fd = fd;
@@ -115,6 +115,7 @@ struct map_struct *map_file(int fd,OFF_T len)
        map->p_offset = 0;
        map->p_fd_offset = 0;
        map->p_len = 0;
+       map->status = 0;
 
        return map;
 }
@@ -159,7 +160,7 @@ char *map_ptr(struct map_struct *map,OFF_T offset,int len)
 
        /* make sure we have allocated enough memory for the window */
        if (window_size > map->p_size) {
-               map->p = (char *)Realloc(map->p, window_size);
+               map->p = realloc_array(map->p, char, window_size);
                if (!map->p) out_of_memory("map_ptr");
                map->p_size = window_size;
        }
@@ -191,7 +192,11 @@ char *map_ptr(struct map_struct *map,OFF_T offset,int len)
                }
 
                if ((nread=read(map->fd,map->p + read_offset,read_size)) != read_size) {
-                       if (nread < 0) nread = 0;
+                       if (nread < 0) {
+                               nread = 0;
+                               if (!map->status)
+                                       map->status = errno;
+                       }
                        /* the best we can do is zero the buffer - the file
                           has changed mid transfer! */
                        memset(map->p+read_offset+nread, 0, read_size - nread);
@@ -206,13 +211,18 @@ char *map_ptr(struct map_struct *map,OFF_T offset,int len)
 }
 
 
-void unmap_file(struct map_struct *map)
+int unmap_file(struct map_struct *map)
 {
+       int     ret;
+
        if (map->p) {
                free(map->p);
                map->p = NULL;
        }
+       ret = map->status;
        memset(map, 0, sizeof(*map));
        free(map);
+
+       return ret;
 }