Revert "Get surrounding and selection text by fd"

This reverts commit 7e9fb71b07db6b8b92ccf19cb017dd6b9e9c30a2.

Change-Id: Iac18454738cdcb54575149cde163edb2a8997f08

13 files changed, 86 insertions, 324 deletions

diff --git a/configure.ac b/configure.ac
index 4f1efd66..a2cc4703 100644
--- a/configure.ac
+++ b/configure.ac
@@ -194,8 +194,6 @@ AC_SUBST(UINT16)
 AC_SUBST(UINT32)
 AC_SUBST(UINT64)
 
-AC_CHECK_MEMBERS([struct msghdr.msg_control],,, [#include <sys/socket.h>])
-
 # Checks for library functions.
 AC_FUNC_MALLOC
 AC_CHECK_FUNCS([gettimeofday memmove memset nl_langinfo setlocale daemon])
diff --git a/ism/extras/wayland_immodule/wayland_imcontext.c b/ism/extras/wayland_immodule/wayland_imcontext.c
index e511774d..2aab5b02 100644
--- a/ism/extras/wayland_immodule/wayland_imcontext.c
+++ b/ism/extras/wayland_immodule/wayland_imcontext.c
@@ -21,7 +21,6 @@
  */
 
 #include "scim_private.h"
-#include <unistd.h>
 
 #include <Ecore.h>
 #include <Ecore_Evas.h>
@@ -951,71 +950,55 @@ text_input_input_panel_data(void                 *data,
     if (!imcontext || !imcontext->ctx) return;
 
     if (imcontext->input_panel_data)
-        free (imcontext->input_panel_data);
+        free(imcontext->input_panel_data);
 
-    imcontext->input_panel_data = calloc (1, length);
-    memcpy (imcontext->input_panel_data, input_panel_data, length);
+    imcontext->input_panel_data = calloc(1, length);
+    memcpy(imcontext->input_panel_data, input_panel_data, length);
     imcontext->input_panel_data_length = length;
 }
 
 static void
 text_input_get_selection_text (void                 *data,
-                               struct wl_text_input *text_input EINA_UNUSED,
-                               int32_t              fd)
+                              struct wl_text_input *text_input EINA_UNUSED,
+                              uint32_t              serial)
 {
     char *selection = NULL;
-    LOGD ("%d", fd);
+    LOGD ("%d", serial);
     WaylandIMContext *imcontext = (WaylandIMContext *)data;
     if (!imcontext || !imcontext->ctx) {
         LOGD ("");
-        close (fd);
         return;
     }
 
     ecore_imf_context_selection_get (imcontext->ctx, &selection);
     if (imcontext->text_input) {
         LOGD ("selection :%s", selection ? selection : "");
-        if (selection) {
-            char *_selection = selection;
-            size_t len = strlen (selection);
-            while (len) {
-                ssize_t ret = write (fd, _selection, len);
-                if (ret <= 0) {
-                    if (errno == EINTR)
-                        continue;
-                    LOGW ("write pipe failed, errno: %d", errno);
-                    break;
-                }
-                _selection += ret;
-                len -= ret;
-            }
-        }
+        wl_text_input_set_selection_text (imcontext->text_input, serial, selection ? selection : "");
     }
+
     if (selection)
         free (selection);
-    close (fd);
 }
 
 static void
 text_input_get_surrounding_text (void                 *data,
-                                 struct wl_text_input *text_input EINA_UNUSED,
-                                 uint32_t              maxlen_before,
-                                 uint32_t              maxlen_after,
-                                 int32_t              fd)
+                                struct wl_text_input *text_input EINA_UNUSED,
+                                uint32_t              serial,
+                                uint32_t              maxlen_before,
+                                uint32_t              maxlen_after)
 {
     int cursor_pos;
     char *surrounding = NULL;
-    LOGD("fd: %d maxlen_before: %d maxlen_after: %d", fd, maxlen_before, maxlen_after);
+    LOGD ("serial: %d maxlen_before: %d maxlen_after: %d", serial, maxlen_before, maxlen_after);
     WaylandIMContext *imcontext = (WaylandIMContext *)data;
     if (!imcontext || !imcontext->ctx) {
-        LOGD("");
-        close(fd);
+        LOGD ("");
         return;
     }
 
     /* cursor_pos is a byte index */
     if (ecore_imf_context_surrounding_get (imcontext->ctx, &surrounding, &cursor_pos)) {
-        LOGD ("surrounding :%s, cursor: %d", surrounding ? surrounding : "", cursor_pos);
+        LOGD ("surrounding :%s, cursor: %d", surrounding? surrounding : "", cursor_pos);
         if (imcontext->text_input) {
             Eina_Unicode *wide_surrounding = eina_unicode_utf8_to_unicode (surrounding, NULL);
             size_t wlen = eina_unicode_strlen (wide_surrounding);
@@ -1035,21 +1018,8 @@ text_input_get_surrounding_text (void                 *data,
 
             char *req_surrounding = eina_unicode_unicode_to_utf8_range (wide_surrounding + maxlen_before, maxlen_after - maxlen_before, NULL);
 
-            if (req_surrounding) {
-                char *_surrounding = req_surrounding;
-                size_t len = strlen(req_surrounding);
-                while (len) {
-                    ssize_t ret = write(fd, _surrounding, len);
-                    if (ret <= 0) {
-                        if (errno == EINTR)
-                            continue;
-                        LOGW ("write pipe failed, errno: %d", errno);
-                        break;
-                    }
-                    _surrounding += ret;
-                    len -= ret;
-                }
-            }
+            wl_text_input_set_surrounding_text (imcontext->text_input,
+                    serial, req_surrounding ? req_surrounding : "", cursor_pos);
 
             if (req_surrounding)
                 free (req_surrounding);
@@ -1061,7 +1031,6 @@ text_input_get_surrounding_text (void                 *data,
         if (surrounding)
             free (surrounding);
     }
-    close(fd);
 }
 //
 
diff --git a/ism/modules/panelagent/ecoresocket/ecore_socket_panel_agent_module.cpp b/ism/modules/panelagent/ecoresocket/ecore_socket_panel_agent_module.cpp
index 0c72da02..2946af86 100644
--- a/ism/modules/panelagent/ecoresocket/ecore_socket_panel_agent_module.cpp
+++ b/ism/modules/panelagent/ecoresocket/ecore_socket_panel_agent_module.cpp
@@ -1165,7 +1165,7 @@ private:
         unlock();
     }
 
-    void socket_helper_get_surrounding_text(int client, uint32 context_id, uint32 maxlen_before, uint32 maxlen_after, const int fd) {
+    void socket_helper_get_surrounding_text(int client, uint32 context_id, uint32 maxlen_before, uint32 maxlen_after) {
         SCIM_DEBUG_MAIN(4) << __FUNCTION__ << " (" << client << ")\n";
         LOGD ("client id:%d\n", client);
 
@@ -1197,7 +1197,7 @@ private:
         unlock();
     }
 
-    void socket_helper_get_selection(int client, uint32 context_id, const int fd) {
+    void socket_helper_get_selection(int client, uint32 context_id) {
         SCIM_DEBUG_MAIN(4) << __FUNCTION__ << " (" << client << ")\n";
         LOGD ("client id:%d\n", client);
 
@@ -2451,14 +2451,7 @@ private:
                     if (m_recv_trans.get_data(uuid) &&
                         m_recv_trans.get_data(maxlen_before) &&
                         m_recv_trans.get_data(maxlen_after)) {
-                        int fd;
-                        client.read_fd (&fd);
-                        if (fd == -1) {
-                            LOGW ("wrong format of transaction\n");
-                        } else {
-                            m_info_manager->socket_helper_get_surrounding_text(client_id, uuid, maxlen_before, maxlen_after, fd);
-                            close (fd);
-                        }
+                        m_info_manager->socket_helper_get_surrounding_text(client_id, uuid, maxlen_before, maxlen_after);
                     } else {
                         LOGW ("wrong format of transaction\n");
                     }
@@ -2475,14 +2468,7 @@ private:
                     String uuid;
 
                     if (m_recv_trans.get_data(uuid)) {
-                        int fd;
-                        client.read_fd (&fd);
-                        if (fd == -1) {
-                            LOGW ("wrong format of transaction\n");
-                        } else {
-                            m_info_manager->socket_helper_get_selection(client_id, uuid, fd);
-                            close (fd);
-                        }
+                        m_info_manager->socket_helper_get_selection(client_id, uuid);
                     } else {
                         LOGW ("wrong format of transaction\n");
                     }
diff --git a/ism/modules/panelagent/wayland/wayland_panel_agent_module.cpp b/ism/modules/panelagent/wayland/wayland_panel_agent_module.cpp
index 209e030e..8df93aa1 100644
--- a/ism/modules/panelagent/wayland/wayland_panel_agent_module.cpp
+++ b/ism/modules/panelagent/wayland/wayland_panel_agent_module.cpp
@@ -251,6 +251,22 @@ InfoManager* g_info_manager = NULL;
 /////////////////////////////////////////////////////////////////////////////
 // Implementation of Wayland Input Method functions.
 /////////////////////////////////////////////////////////////////////////////
+static void
+_wsc_im_ctx_surrounding_text(void *data, struct wl_input_method_context *im_ctx, uint32_t serial, const char *text, uint32_t cursor_position)
+{
+    LOGD ("");
+    WSCContextISF *wsc_ctx = (WSCContextISF*)data;
+    if (!wsc_ctx) return;
+
+    if (wsc_ctx->surrounding_text)
+        free (wsc_ctx->surrounding_text);
+
+    wsc_ctx->surrounding_text = strdup (text ? text : "");
+    wsc_ctx->surrounding_cursor = cursor_position;
+    g_info_manager->socket_update_surrounding_text (wsc_ctx->surrounding_text, wsc_ctx->surrounding_cursor);
+
+    LOGD ("text : '%s', cursor : %d\n", text, cursor_position);
+}
 
 static void
 _wsc_im_ctx_reset(void *data, struct wl_input_method_context *im_ctx)
@@ -393,6 +409,17 @@ _wsc_im_ctx_bidi_direction(void *data, struct wl_input_method_context *im_ctx, u
 }
 
 static void
+_wsc_im_ctx_selection_text(void *data, struct wl_input_method_context *im_ctx, uint32_t serial, const char *text)
+{
+    WSCContextISF *wsc_ctx = (WSCContextISF*)data;
+
+    LOGD ("im_context = %p selection text = %s\n", im_ctx, text);
+    if (!wsc_ctx) return;
+
+    g_info_manager->socket_update_selection (text);
+}
+
+static void
 _wsc_im_ctx_cursor_position(void *data, struct wl_input_method_context *im_ctx, uint32_t cursor_pos)
 {
     WSCContextISF *wsc_ctx = (WSCContextISF*)data;
@@ -404,6 +431,7 @@ _wsc_im_ctx_cursor_position(void *data, struct wl_input_method_context *im_ctx,
 }
 
 static const struct wl_input_method_context_listener wsc_im_context_listener = {
+     _wsc_im_ctx_surrounding_text,
      _wsc_im_ctx_reset,
      _wsc_im_ctx_content_type,
      _wsc_im_ctx_invoke_action,
@@ -413,7 +441,8 @@ static const struct wl_input_method_context_listener wsc_im_context_listener = {
      _wsc_im_ctx_return_key_disabled,
      _wsc_im_ctx_input_panel_data,
      _wsc_im_ctx_bidi_direction,
-     _wsc_im_ctx_cursor_position
+     _wsc_im_ctx_selection_text,
+     _wsc_im_ctx_cursor_position,
 };
 
 static void
@@ -2700,10 +2729,10 @@ public:
     }
 
     void
-    socket_helper_get_surrounding_text (int id, uint32 context_id, uint32 maxlen_before, uint32 maxlen_after, const int fd) {
-        LOGD ("client id:%d, fd:%d", id, fd);
+    socket_helper_get_surrounding_text (int id, uint32 context_id, uint32 maxlen_before, uint32 maxlen_after) {
+        LOGD ("client id:%d", id);
         WSCContextISF* ic = find_ic (context_id);
-        wl_input_method_context_get_surrounding_text(ic->im_ctx, maxlen_before, maxlen_after, fd);
+        wl_input_method_context_get_surrounding_text(ic->im_ctx, ic->serial, maxlen_before, maxlen_after);
     }
 
     void
@@ -2744,10 +2773,10 @@ public:
     }
 
     void
-    socket_helper_get_selection (int id, uint32 context_id, const int fd) {
-        LOGD ("client id:%d, fd:%d", id, fd);
+    socket_helper_get_selection (int id, uint32 context_id) {
+        LOGD ("client id:%d", id);
         WSCContextISF* ic = find_ic (context_id);
-        wl_input_method_context_get_selection_text (ic->im_ctx, fd);
+        wl_input_method_context_get_selection_text (ic->im_ctx, ic->serial);
     }
 };
 
diff --git a/ism/src/isf_info_manager.cpp b/ism/src/isf_info_manager.cpp
index 909929fb..a935bff3 100644
--- a/ism/src/isf_info_manager.cpp
+++ b/ism/src/isf_info_manager.cpp
@@ -3130,7 +3130,7 @@ client context helpers: %d, helpers uuid count: %d",
         }
     }
     //SCIM_TRANS_CMD_GET_SURROUNDING_TEXT
-    void socket_helper_get_surrounding_text (int client, String uuid, uint32 maxlen_before, uint32 maxlen_after, const int fd) {
+    void socket_helper_get_surrounding_text (int client, String uuid, uint32 maxlen_before, uint32 maxlen_after) {
         SCIM_DEBUG_MAIN (4) << __FUNCTION__ << " (" << client << ")\n";
         LOGD ("");
         int     focused_client;
@@ -3139,7 +3139,7 @@ client context helpers: %d, helpers uuid count: %d",
         ClientInfo client_info = socket_get_client_info (focused_client);
 
         if (client_info.type == FRONTEND_CLIENT) {
-            m_panel_agent_manager.socket_helper_get_surrounding_text (focused_client, focused_context, maxlen_before, maxlen_after, fd);
+            m_panel_agent_manager.socket_helper_get_surrounding_text (focused_client, focused_context, maxlen_before, maxlen_after);
         }
     }
     //SCIM_TRANS_CMD_DELETE_SURROUNDING_TEXT
@@ -3156,7 +3156,7 @@ client context helpers: %d, helpers uuid count: %d",
         }
     }
     //SCIM_TRANS_CMD_GET_SELECTION
-    void socket_helper_get_selection (int client, String uuid, const int fd) {
+    void socket_helper_get_selection (int client, String uuid) {
         SCIM_DEBUG_MAIN (4) << __FUNCTION__ << " (" << client << ")\n";
         LOGD ("");
         int     focused_client;
@@ -3165,7 +3165,7 @@ client context helpers: %d, helpers uuid count: %d",
         ClientInfo client_info = socket_get_client_info (focused_client);
 
         if (client_info.type == FRONTEND_CLIENT) {
-            m_panel_agent_manager.socket_helper_get_selection (focused_client, focused_context, fd);
+            m_panel_agent_manager.socket_helper_get_selection (focused_client, focused_context);
         }
     }
     //SCIM_TRANS_CMD_SET_SELECTION
@@ -4581,9 +4581,9 @@ void InfoManager::socket_helper_commit_string (int client, uint32 target_ic, Str
 }
 
 //SCIM_TRANS_CMD_GET_SURROUNDING_TEXT
-void InfoManager::socket_helper_get_surrounding_text (int client, String uuid, uint32 maxlen_before, uint32 maxlen_after, const int fd)
+void InfoManager::socket_helper_get_surrounding_text (int client, String uuid, uint32 maxlen_before, uint32 maxlen_after)
 {
-    m_impl->socket_helper_get_surrounding_text (client, uuid, maxlen_before, maxlen_after, fd);
+    m_impl->socket_helper_get_surrounding_text (client, uuid, maxlen_before, maxlen_after);
 }
 
 //SCIM_TRANS_CMD_DELETE_SURROUNDING_TEXT
@@ -4593,9 +4593,9 @@ void InfoManager::socket_helper_delete_surrounding_text (int client, uint32 offs
 }
 
 //SCIM_TRANS_CMD_GET_SELECTION
-void InfoManager::socket_helper_get_selection (int client, String uuid, const int fd)
+void InfoManager::socket_helper_get_selection (int client, String uuid)
 {
-    m_impl->socket_helper_get_selection (client, uuid, fd);
+    m_impl->socket_helper_get_selection (client, uuid);
 }
 
 //SCIM_TRANS_CMD_SET_SELECTION
diff --git a/ism/src/isf_info_manager.h b/ism/src/isf_info_manager.h
index 80190746..f07d553d 100644
--- a/ism/src/isf_info_manager.h
+++ b/ism/src/isf_info_manager.h
@@ -883,13 +883,13 @@ public:
     void socket_helper_commit_string (int client, uint32 target_ic, String target_uuid, WideString wstr);
 
     //SCIM_TRANS_CMD_GET_SURROUNDING_TEXT
-    void socket_helper_get_surrounding_text (int client, String uuid, uint32 maxlen_before, uint32 maxlen_after, const int fd);
+    void socket_helper_get_surrounding_text (int client, String uuid, uint32 maxlen_before, uint32 maxlen_after);
 
     //SCIM_TRANS_CMD_DELETE_SURROUNDING_TEXT
     void socket_helper_delete_surrounding_text (int client, uint32 offset, uint32 len);
 
     //SCIM_TRANS_CMD_GET_SELECTION
-    void socket_helper_get_selection (int client, String uuid, const int fd);
+    void socket_helper_get_selection (int client, String uuid);
 
     //SCIM_TRANS_CMD_SET_SELECTION
     void socket_helper_set_selection (int client, uint32 start, uint32 end);
diff --git a/ism/src/isf_panel_agent_base.cpp b/ism/src/isf_panel_agent_base.cpp
index ed1b9b1e..7a6f7716 100644
--- a/ism/src/isf_panel_agent_base.cpp
+++ b/ism/src/isf_panel_agent_base.cpp
@@ -398,7 +398,7 @@ void PanelAgentBase::socket_helper_key_event (int client, uint32 context, int cm
 
 //SCIM_TRANS_CMD_GET_SURROUNDING_TEXT
 //socket_helper_get_surrounding_text
-void PanelAgentBase::socket_helper_get_surrounding_text (int client, uint32 context, uint32 maxlen_before, uint32 maxlen_after, const int fd)
+void PanelAgentBase::socket_helper_get_surrounding_text (int client, uint32 context, uint32 maxlen_before, uint32 maxlen_after)
 {
     LOGW ("not implemented for %s", m_name.c_str ());
 }
@@ -409,7 +409,7 @@ void PanelAgentBase::socket_helper_delete_surrounding_text (int client, uint32 c
     LOGD ("not implemented ");
 }
 //SCIM_TRANS_CMD_GET_SELECTION
-void PanelAgentBase::socket_helper_get_selection (int client, uint32 context, const int fd)
+void PanelAgentBase::socket_helper_get_selection (int client, uint32 context)
 {
     LOGW ("not implemented for %s", m_name.c_str ());
 }
diff --git a/ism/src/isf_panel_agent_base.h b/ism/src/isf_panel_agent_base.h
index 4ff3a486..ddf8501b 100644
--- a/ism/src/isf_panel_agent_base.h
+++ b/ism/src/isf_panel_agent_base.h
@@ -644,7 +644,7 @@ public:
      *
      * @return none.
      */
-    virtual void socket_helper_get_surrounding_text (int client, uint32 context, uint32 maxlen_before, uint32 maxlen_after, const int fd);
+    virtual void socket_helper_get_surrounding_text (int client, uint32 context, uint32 maxlen_before, uint32 maxlen_after);
 
     /**
      * @brief socket_helper_delete_surrounding_text.
@@ -662,7 +662,7 @@ public:
      *
      * @return none.
      */
-    virtual void socket_helper_get_selection (int client, uint32 context, const int fd);
+    virtual void socket_helper_get_selection (int client, uint32 context);
 
     /**
      * @brief socket_helper_set_selection.
diff --git a/ism/src/isf_panel_agent_manager.cpp b/ism/src/isf_panel_agent_manager.cpp
index f33b0096..a174c617 100644
--- a/ism/src/isf_panel_agent_manager.cpp
+++ b/ism/src/isf_panel_agent_manager.cpp
@@ -643,12 +643,12 @@ void PanelAgentManager::socket_helper_key_event (int id, uint32 context_id, int
         _p->socket_helper_key_event (id, context_id, cmd, key);
 }
 
-void PanelAgentManager::socket_helper_get_surrounding_text (int id, uint32 context_id, uint32 maxlen_before, uint32 maxlen_after, const int fd)
+void PanelAgentManager::socket_helper_get_surrounding_text (int id, uint32 context_id, uint32 maxlen_before, uint32 maxlen_after)
 {
     PanelAgentPointer _p = m_impl->get_panel_agent_by_id (id);
 
     if (!_p.null ())
-        _p->socket_helper_get_surrounding_text (id, context_id, maxlen_before, maxlen_after, fd);
+        _p->socket_helper_get_surrounding_text (id, context_id, maxlen_before, maxlen_after);
 }
 
 void PanelAgentManager::socket_helper_delete_surrounding_text (int id, uint32 context_id, uint32 offset, uint32 len)
@@ -659,12 +659,12 @@ void PanelAgentManager::socket_helper_delete_surrounding_text (int id, uint32 co
         _p->socket_helper_delete_surrounding_text (id, context_id, offset, len);
 }
 
-void PanelAgentManager::socket_helper_get_selection (int id, uint32 context_id, const int fd)
+void PanelAgentManager::socket_helper_get_selection (int id, uint32 context_id)
 {
     PanelAgentPointer _p = m_impl->get_panel_agent_by_id (id);
 
     if (!_p.null ())
-        _p->socket_helper_get_selection (id, context_id, fd);
+        _p->socket_helper_get_selection (id, context_id);
 }
 
 void PanelAgentManager::socket_helper_set_selection (int id, uint32 context_id, uint32 start, uint32 end)
diff --git a/ism/src/isf_panel_agent_manager.h b/ism/src/isf_panel_agent_manager.h
index 5e3e981c..a91d2196 100644
--- a/ism/src/isf_panel_agent_manager.h
+++ b/ism/src/isf_panel_agent_manager.h
@@ -325,9 +325,9 @@ public:
     void helper_process_imengine_event (int client, uint32 context, const String& ic_uuid, const Transaction& nest_transaction);
     void process_helper_event (int client, uint32 context, String target_uuid, String active_uuid, Transaction& nest_trans);
     void socket_helper_key_event (int client, uint32 context, int cmd , KeyEvent& key);
-    void socket_helper_get_surrounding_text (int client, uint32 context_id, uint32 maxlen_before, uint32 maxlen_after, const int fd);
+    void socket_helper_get_surrounding_text (int client, uint32 context_id, uint32 maxlen_before, uint32 maxlen_after);
     void socket_helper_delete_surrounding_text (int client, uint32 context_id, uint32 offset, uint32 len);
-    void socket_helper_get_selection (int client, uint32 context_id, const int fd);
+    void socket_helper_get_selection (int client, uint32 context_id);
     void socket_helper_set_selection (int client, uint32 context_id, uint32 start, uint32 end);
     void update_ise_input_context (int    focused_client, uint32 focused_context, uint32 type, uint32 value);
     void send_private_command (int    focused_client, uint32 focused_context, String command);
diff --git a/ism/src/scim_helper.cpp b/ism/src/scim_helper.cpp
index 760b20a9..a7537fdb 100644
--- a/ism/src/scim_helper.cpp
+++ b/ism/src/scim_helper.cpp
@@ -48,7 +48,6 @@
 
 #include <string.h>
 #include <unistd.h>
-#include <fcntl.h>
 
 #include "scim_private.h"
 #include "scim.h"
@@ -1956,6 +1955,10 @@ void
 HelperAgent::get_surrounding_text (int maxlen_before, int maxlen_after, String &text, int &cursor)
 {
     LOGD ("");
+    if (m_impl->surrounding_text) {
+        free (m_impl->surrounding_text);
+        m_impl->surrounding_text = NULL;
+    }
 
     if (!m_impl->socket_active.is_connected ())
         return;
@@ -1969,48 +1972,6 @@ HelperAgent::get_surrounding_text (int maxlen_before, int maxlen_after, String &
     m_impl->send.put_data (maxlen_after);
     m_impl->send.write_to_socket (m_impl->socket_active, m_impl->magic_active);
 
-#ifdef WAYLAND
-    int filedes[2];
-    if (pipe2(filedes,O_CLOEXEC|O_NONBLOCK) ==-1 ) {
-        LOGD ("create pipe failed");
-        return;
-    }
-    LOGD("%d,%d",filedes[0],filedes[1]);
-
-    m_impl->socket_active.write_fd (filedes[1]);
-    close (filedes[1]);
-
-    for (int i = 0; i < 3; i++) {
-        int fds[3];
-        fds[0] = m_impl->socket_active.get_id();
-        fds[1] = filedes[0];
-        fds[2] = 0;
-        if (!scim_wait_for_data (fds)) {
-            LOGE ("");
-            break;
-        }
-
-        if (fds[1]) {
-            char buff[512];
-            int len = read (fds[1], buff, sizeof(buff));
-            if (len <= 0)
-                break;
-            else {
-                buff[len] = '\0';
-                text.append (buff);
-            }
-        }
-        if (fds[0])
-            filter_event ();
-    }
-    close (filedes[0]);
-    cursor = m_impl->cursor_pos;
-#else
-    if (m_impl->surrounding_text) {
-        free (m_impl->surrounding_text);
-        m_impl->surrounding_text = NULL;
-    }
-
     for (int i = 0; i < 3; i++) {
         if (filter_event () && m_impl->surrounding_text) {
             text = m_impl->surrounding_text;
@@ -2023,7 +1984,6 @@ HelperAgent::get_surrounding_text (int maxlen_before, int maxlen_after, String &
         free (m_impl->surrounding_text);
         m_impl->surrounding_text = NULL;
     }
-#endif
 }
 
 /**
@@ -2078,6 +2038,10 @@ void
 HelperAgent::get_selection_text (String &text)
 {
     LOGD ("");
+    if (m_impl->selection_text) {
+        free (m_impl->selection_text);
+        m_impl->selection_text = NULL;
+    }
 
     if (!m_impl->socket_active.is_connected ())
         return;
@@ -2088,46 +2052,6 @@ HelperAgent::get_selection_text (String &text)
     m_impl->send.put_command (SCIM_TRANS_CMD_GET_SELECTION);
     m_impl->send.put_data ("");
     m_impl->send.write_to_socket (m_impl->socket_active, m_impl->magic_active);
-#ifdef WAYLAND
-    int filedes[2];
-    if (pipe2 (filedes,O_CLOEXEC|O_NONBLOCK) == -1 ) {
-        LOGD ("create pipe failed");
-        return;
-    }
-    LOGD("%d,%d", filedes[0], filedes[1]);
-
-    m_impl->socket_active.write_fd (filedes[1]);
-    close (filedes[1]);
-
-    for (int i = 0; i < 3; i++) {
-        int fds[3];
-        fds[0] = m_impl->socket_active.get_id();
-        fds[1] = filedes[0];
-        fds[2] = 0;
-        if (!scim_wait_for_data (fds)) {
-            LOGE ("");
-            break;
-        }
-
-        if (fds[1]) {
-            char buff[512];
-            int len = read (fds[1], buff, sizeof(buff));
-            if (len <= 0)
-                break;
-            else {
-                buff[len] = '\0';
-                text.append (buff);
-            }
-        }
-        if (fds[0])
-            filter_event ();
-    }
-    close (filedes[0]);
-#else
-    if (m_impl->selection_text) {
-        free (m_impl->selection_text);
-        m_impl->selection_text = NULL;
-    }
 
     for (int i = 0; i < 3; i++) {
         if (filter_event () && m_impl->selection_text) {
@@ -2135,11 +2059,11 @@ HelperAgent::get_selection_text (String &text)
             break;
         }
     }
+
     if (m_impl->selection_text) {
         free (m_impl->selection_text);
         m_impl->selection_text = NULL;
     }
-#endif
 }
 
 /**
diff --git a/ism/src/scim_socket.cpp b/ism/src/scim_socket.cpp
index 9c2eb70f..45f3b16e 100644
--- a/ism/src/scim_socket.cpp
+++ b/ism/src/scim_socket.cpp
@@ -373,95 +373,6 @@ public:
         return m_id >= 0;
     }
 
-    void write_fd (int fd) {
-        struct msghdr msg;
-        char buff[]={0};
-        struct iovec iov[1];
-#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL
-        union{
-            struct cmsghdr cm;
-            char control[CMSG_SPACE (sizeof (int))];
-        }control_un;
-        struct cmsghdr *cmptr;
-        msg.msg_control = control_un.control;
-        msg.msg_controllen = sizeof(control_un.control);
-        cmptr = CMSG_FIRSTHDR (&msg);
-        cmptr->cmsg_len = CMSG_LEN (sizeof(int));
-        cmptr->cmsg_level = SOL_SOCKET;
-        cmptr->cmsg_type = SCM_RIGHTS;
-        memcpy (CMSG_DATA (cmptr), &fd, sizeof(int));
-#else
-        msg.msg_accrights = (caddr_t)&fd;
-        msg.msg_accrightslen = sizeof (int);
-#endif
-        msg.msg_name = NULL;
-        msg.msg_namelen = 0;
-        iov[0].iov_base = buff;
-        iov[0].iov_len = sizeof (buff);
-        msg.msg_iov = iov;
-        msg.msg_iovlen = 1;
-        sendmsg (m_id, &msg, 0);
-    }
-
-    void read_fd (int *fd) {
-        struct msghdr msg;
-        char buff[]={0};
-        struct iovec iov[1];
-#ifndef HAVE_STRUCT_MSGHDR_MSG_CONTROL
-        int newfd;
-#endif
-
-#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL
-        union{
-            struct cmsghdr cm;
-            char control[CMSG_SPACE (sizeof (int))];
-        }control_un;
-        struct cmsghdr *cmptr;
-        msg.msg_control = control_un.control;
-        msg.msg_controllen = sizeof (control_un.control);
-#else
-        msg.msg_accrights = (caddr_t) &newfd;
-        msg.msg_accrightslen = sizeof (int);
-#endif
-        msg.msg_name = NULL;
-        msg.msg_namelen = 0;
-        iov[0].iov_base = buff;
-        iov[0].iov_len = sizeof (buff);
-        msg.msg_iov = iov;
-        msg.msg_iovlen = 1;
-        while (true) {
-            if (recvmsg (m_id, &msg, 0) <= 0) {
-                if (errno ==  EAGAIN)
-                    continue;
-                *fd = -1;
-                LOGE ("%d", errno);
-                return;
-            }
-            break;
-        }
-#ifdef HAVE_STRUCT_MSGHDR_MSG_CONTROL
-        cmptr = CMSG_FIRSTHDR (&msg);
-        if ((cmptr != NULL) && (cmptr->cmsg_len == CMSG_LEN (sizeof (int)))) {
-            if (cmptr->cmsg_level != SOL_SOCKET || cmptr->cmsg_type != SCM_RIGHTS) {
-                *fd = -1;
-                LOGE ("unknow message");
-                return;
-            }
-            memcpy (fd, CMSG_DATA (cmptr), sizeof(int));
-        }
-        else
-        {
-            *fd = -1;
-            LOGE ("unknow message format");
-        }
-#else
-        if (msg.msg_accrightslen == sizeof (int))
-            *fd = newfd;
-        else
-            *fd = -1;
-#endif
-    }
-
     int read (void *buf, size_t size) {
         if (!buf || !size) { m_err = EINVAL; return -1; }
         if (m_id < 0) { m_err = EBADF; return -1; }
@@ -961,18 +872,6 @@ Socket::set_nonblock_mode ()
     return m_impl->set_nonblock_mode ();
 }
 
-void
-Socket::write_fd (int fd) const
-{
-    m_impl->write_fd (fd);
-}
-
-void
-Socket::read_fd (int *fd) const
-{
-    m_impl->read_fd (fd);
-}
-
 bool
 Socket::create (SocketFamily family)
 {
@@ -1694,43 +1593,6 @@ scim_socket_accept_connection (uint32       &key,
     return String ("");
 }
 
-bool
-scim_wait_for_data (int *fds)
-{
-    fd_set _fd_set;
-    int max_fd;
-    int *_fds;
-    if (fds == NULL)
-        return false;
-    max_fd = *fds;
-    FD_ZERO (&_fd_set);
-    for (_fds = fds; *_fds; _fds++) {
-        FD_SET (*_fds, &_fd_set);
-        if (*_fds > max_fd)
-           max_fd = *_fds;
-    }
-    while (true) {
-        int ret = select (max_fd + 1, &_fd_set, NULL, NULL, NULL);
-        if (ret < 0) {
-            if (errno == EINTR)
-                continue;
-            LOGW ("%d", errno);
-            return false;
-        }
-        else if (ret == 0)
-            continue;
-        else
-            break;
-    }
-
-    for (_fds = fds; *_fds; _fds++) {
-        if (!FD_ISSET(*_fds, &_fd_set))
-            *_fds = 0;
-    }
-    return true;
-}
-
-
 } // namespace scim
 
 /*
diff --git a/ism/src/scim_socket.h b/ism/src/scim_socket.h
index 73721095..3cb92501 100644
--- a/ism/src/scim_socket.h
+++ b/ism/src/scim_socket.h
@@ -282,10 +282,6 @@ public:
      */
     int set_nonblock_mode ();
 
-    void write_fd (int fd) const;
-    void read_fd (int *fd) const;
-
-
 protected:
 
     /**
@@ -654,8 +650,6 @@ EXAPI String scim_socket_accept_connection (uint32       &key,
                                       const String &client_types,
                                       const Socket &socket,
                                       int           timeout = -1);
-
-EXAPI bool scim_wait_for_data (int *fds);
 /** @} */
 
 } // namespace scim