From e56c91ff6eecdb1663bb1722a4081ef2f190e9c0 Mon Sep 17 00:00:00 2001
From: uphantom <dengwei.2011@gmail.com>
Date: Fri, 28 Aug 2015 18:37:12 +0800
Subject: suport multi-thread reader

---
 htk_io/src/cwrapper.cpp | 49 ++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 42 insertions(+), 7 deletions(-)

(limited to 'htk_io/src/cwrapper.cpp')

diff --git a/htk_io/src/cwrapper.cpp b/htk_io/src/cwrapper.cpp
index b7ce2d5..66cde23 100644
--- a/htk_io/src/cwrapper.cpp
+++ b/htk_io/src/cwrapper.cpp
@@ -8,6 +8,7 @@
 extern "C" {
 #include "cwrapper.h"
 #include "string.h"
+#include "pthread.h"
 #include "nerv/common.h"
 
     extern Matrix *nerv_matrix_host_float_create(long nrow, long ncol, Status *status);
@@ -29,6 +30,7 @@ extern "C" {
         const char* cvn_mask;
         const char* cvg_file;
         TNet::Matrix<float> feats_host; /* KaldiLib implementation */
+	int  refcount;
     };
 
     TNetFeatureRepo *tnet_feature_repo_new(const char *p_script, const char *config, int context) {
@@ -53,6 +55,18 @@ extern "C" {
         return repo;
     }
 
+    TNetFeatureRepo *tnet_feature_repo_newWithId(long id)
+    {
+	TNetFeatureRepo *repo = (TNetFeatureRepo*)id;
+	__sync_fetch_and_add(&repo->refcount, 1);
+	return repo;
+    }
+
+    long tnet_feature_repo_id(TNetFeatureRepo *repo)
+    {
+	return (long)(repo);
+    }
+
     Matrix *tnet_feature_repo_read_utterance(TNetFeatureRepo *repo, lua_State *L, int debug) {
         Matrix *mat;                    /* nerv implementation */
         repo->feature_repo.ReadFullMatrix(repo->feats_host);
@@ -93,12 +107,19 @@ extern "C" {
     }
 
     void tnet_feature_repo_destroy(TNetFeatureRepo *repo) {
-        if (repo->cmn_mask)
-            free(repo->cmn_path);
-        if (repo->cvn_mask)
-            free(repo->cvn_path);
-        free(repo->p_deriv_win_lenghts);
-        delete repo;
+	if (NULL != repo)
+	{
+	 	if(__sync_fetch_and_add(&repo->refcount, -1) == 1)
+		{
+        		if (repo->cmn_mask)
+            			free(repo->cmn_path);
+        		if (repo->cvn_mask)
+            			free(repo->cvn_path);
+        		free(repo->p_deriv_win_lenghts);
+        		delete repo;
+			repo = NULL;
+		}
+	}
     }
 
     struct TNetLabelRepo {
@@ -114,6 +135,16 @@ extern "C" {
         return repo;
     }
 
+    TNetLabelRepo *tnet_label_repo_newWithId(long id)
+    {
+	return (TNetLabelRepo*)id;
+    }
+
+    long tnet_label_repo_id(TNetLabelRepo *repo)
+    {
+	return (long)(repo);
+    }
+
     Matrix *tnet_label_repo_read_utterance(TNetLabelRepo *repo,
                                             size_t frames,
                                             size_t sample_rate,
@@ -143,6 +174,10 @@ extern "C" {
     }
 
     void tnet_label_repo_destroy(TNetLabelRepo *repo) {
-        delete repo;
+	if (NULL != repo)	
+	{
+        	delete repo;
+		repo = NULL;
+	}
     }
 }
-- 
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