shm: Allow ShmPipe to save a data pointer for applications

diff --git a/sys/shm/shmpipe.c b/sys/shm/shmpipe.c
index cf3be94..209a13b 100644 (file)
--- a/sys/shm/shmpipe.c
+++ b/sys/shm/shmpipe.c
@@ -120,6 +120,7 @@ struct _ShmPipe
   int main_socket;
   char *socket_path;
   int use_count;
+  void *data;
 
   ShmArea *shm_area;
 
@@ -374,6 +375,18 @@ sp_shm_area_dec (ShmPipe * self, ShmArea * area)
   }
 }
 
+void *
+sp_get_data (ShmPipe * self)
+{
+  return self->data;
+}
+
+void
+sp_set_data (ShmPipe * self, void *data)
+{
+  self->data = data;
+}
+
 static void
 sp_inc (ShmPipe * self)
 {

diff --git a/sys/shm/shmpipe.h b/sys/shm/shmpipe.h
index a6e092f..c4475b8 100644 (file)
--- a/sys/shm/shmpipe.h
+++ b/sys/shm/shmpipe.h
@@ -75,6 +75,8 @@ typedef struct _ShmBlock ShmBlock;
 ShmPipe *sp_writer_create (const char *path, size_t size, mode_t perms);
 const char *sp_writer_get_path (ShmPipe *pipe);
 void sp_close (ShmPipe * self);
+void *sp_get_data (ShmPipe * self);
+void sp_set_data (ShmPipe * self, void *data);
 
 int sp_writer_setperms_shm (ShmPipe * self, mode_t perms);
 int sp_writer_resize (ShmPipe * self, size_t size);
@@ -86,6 +88,7 @@ ShmBlock *sp_writer_alloc_block (ShmPipe * self, size_t size);
 void sp_writer_free_block (ShmBlock *block);
 int sp_writer_send_buf (ShmPipe * self, char *buf, size_t size);
 char *sp_writer_block_get_buf (ShmBlock *block);
+ShmPipe *sp_writer_block_get_pipe (ShmBlock *block);
 
 ShmClient * sp_writer_accept_client (ShmPipe * self);
 void sp_writer_close_client (ShmPipe *self, ShmClient * client);