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Fix tiled format issue.
[platform/core/uifw/libtbm.git] / src / tbm_bo.c
diff --git a/src/tbm_bo.c b/src/tbm_bo.c
index 69d318d..7e190b1 100644 (file)
--- a/src/tbm_bo.c
+++ b/src/tbm_bo.c
@@ -34,15 +34,12 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "tbm_bufmgr_int.h"
 #include "list.h"
 
-static pthread_mutex_t tbm_bo_lock = PTHREAD_MUTEX_INITIALIZER;
-static __thread tbm_error_e tbm_last_error = TBM_ERROR_NONE;
-static void _tbm_bo_mutex_unlock(void);
-
 /* check condition */
 #define TBM_BO_RETURN_IF_FAIL(cond) {\
        if (!(cond)) {\
                TBM_ERR("'%s' failed.\n", #cond);\
-               _tbm_bo_mutex_unlock();\
+               _tbm_set_last_result(TBM_ERROR_INVALID_PARAMETER);\
+               _tbm_bufmgr_mutex_unlock();\
                return;\
        } \
 }
@@ -50,53 +47,12 @@ static void _tbm_bo_mutex_unlock(void);
 #define TBM_BO_RETURN_VAL_IF_FAIL(cond, val) {\
        if (!(cond)) {\
                TBM_ERR("'%s' failed.\n", #cond);\
-               _tbm_bo_mutex_unlock();\
+               _tbm_set_last_result(TBM_ERROR_INVALID_PARAMETER);\
+               _tbm_bufmgr_mutex_unlock();\
                return val;\
        } \
 }
 
-static void
-_tbm_set_last_result(tbm_error_e err)
-{
-       tbm_last_error = err;
-}
-
-/* LCOV_EXCL_START */
-static bool
-_tbm_bo_mutex_init(void)
-{
-       static bool tbm_bo_mutex_init = false;
-
-       if (tbm_bo_mutex_init)
-               return true;
-
-       if (pthread_mutex_init(&tbm_bo_lock, NULL)) {
-               TBM_ERR("fail: Cannot pthread_mutex_init for tbm_bo_lock.\n");
-               return false;
-       }
-
-       tbm_bo_mutex_init = true;
-
-       return true;
-}
-
-static void
-_tbm_bo_mutex_lock(void)
-{
-       if (!_tbm_bo_mutex_init()) {
-               TBM_ERR("fail: _tbm_bo_mutex_init()\n");
-               return;
-       }
-
-       pthread_mutex_lock(&tbm_bo_lock);
-}
-
-static void
-_tbm_bo_mutex_unlock(void)
-{
-       pthread_mutex_unlock(&tbm_bo_lock);
-}
-
 static char *
 _tbm_flag_to_str(int f)
 {
@@ -144,8 +100,8 @@ _tbm_util_check_bo_cnt(tbm_bufmgr bufmgr)
 }
 /* LCOV_EXCL_STOP */
 
-tbm_user_data
-*user_data_lookup(struct list_head *user_data_list, unsigned long key)
+tbm_user_data *
+user_data_lookup(struct list_head *user_data_list, unsigned long key)
 {
        tbm_user_data *old_data = NULL;
 
@@ -160,8 +116,8 @@ tbm_user_data
        return NULL;
 }
 
-tbm_user_data
-*user_data_create(unsigned long key, tbm_data_free data_free_func)
+tbm_user_data *
+user_data_create(unsigned long key, tbm_data_free data_free_func)
 {
        tbm_user_data *user_data;
 
@@ -169,6 +125,7 @@ tbm_user_data
        if (!user_data) {
                /* LCOV_EXCL_START */
                TBM_ERR("fail to allocate an user_date\n");
+               _tbm_set_last_result(TBM_ERROR_OUT_OF_MEMORY);
                return NULL;
                /* LCOV_EXCL_STOP */
        }
@@ -201,12 +158,16 @@ _bo_lock(tbm_bo bo, int device, int opt)
                        error = bo->bufmgr->bo_func->bo_lock(bo->bo_data, device, opt);
                        if (error != TBM_ERROR_NONE) {
                                TBM_WRN("fail to lock");
+                               _tbm_set_last_result(error);
                                ret = 0;
                        }
                }
        } else {
-               if (bo->bufmgr->backend->bo_lock)
+               if (bo->bufmgr->backend->bo_lock) {
                        ret = bo->bufmgr->backend->bo_lock(bo, device, opt);
+                       if (!ret)
+                               _tbm_set_last_result(TBM_ERROR_INVALID_OPERATION);
+               }
        }
 
        return ret;
@@ -220,8 +181,10 @@ _bo_unlock(tbm_bo bo)
        if (bo->bufmgr->backend_module_data) {
                if (bo->bufmgr->bo_func->bo_unlock) {
                        error = bo->bufmgr->bo_func->bo_unlock(bo->bo_data);
-                       if (error != TBM_ERROR_NONE)
+                       if (error != TBM_ERROR_NONE) {
                                TBM_WRN("fail to unlock");
+                               _tbm_set_last_result(error);
+                       }
                }
        } else {
                if (bo->bufmgr->backend->bo_unlock)
@@ -252,18 +215,18 @@ _tbm_bo_lock(tbm_bo bo, int device, int opt)
        switch (bo->bufmgr->bo_lock_type) {
        case TBM_BUFMGR_BO_LOCK_TYPE_ONCE:
                if (bo->lock_cnt == 0) {
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
                        ret = _bo_lock(bo, device, opt);
-                       _tbm_bo_mutex_lock();
+                       _tbm_bufmgr_mutex_lock();
                        if (ret)
                                bo->lock_cnt++;
                } else
                        ret = 1;
                break;
        case TBM_BUFMGR_BO_LOCK_TYPE_ALWAYS:
-               _tbm_bo_mutex_unlock();
+               _tbm_bufmgr_mutex_unlock();
                ret = _bo_lock(bo, device, opt);
-               _tbm_bo_mutex_lock();
+               _tbm_bufmgr_mutex_lock();
                if (ret)
                        bo->lock_cnt++;
                break;
@@ -356,7 +319,8 @@ tbm_bo_alloc(tbm_bufmgr bufmgr, int size, int flags)
        tbm_backend_bo_data *bo_data;
        tbm_error_e error;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), NULL);
        TBM_BO_RETURN_VAL_IF_FAIL(size > 0, NULL);
@@ -366,8 +330,8 @@ tbm_bo_alloc(tbm_bufmgr bufmgr, int size, int flags)
                /* LCOV_EXCL_START */
                TBM_ERR("error: fail to create of tbm_bo size(%d) flag(%s)\n",
                                size, _tbm_flag_to_str(flags));
-               _tbm_set_last_result(TBM_BO_ERROR_HEAP_ALLOC_FAILED);
-               _tbm_bo_mutex_unlock();
+               _tbm_set_last_result(TBM_ERROR_OUT_OF_MEMORY);
+               _tbm_bufmgr_mutex_unlock();
                return NULL;
                /* LCOV_EXCL_STOP */
        }
@@ -382,9 +346,9 @@ tbm_bo_alloc(tbm_bufmgr bufmgr, int size, int flags)
                        /* LCOV_EXCL_START */
                        TBM_ERR("error: fail to create of tbm_bo size(%d) flag(%s)\n",
                                        size, _tbm_flag_to_str(flags));
-                       _tbm_set_last_result(TBM_BO_ERROR_BO_ALLOC_FAILED);
+                       _tbm_set_last_result(error);
                        free(bo);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
                        return NULL;
                        /* LCOV_EXCL_STOP */
                }
@@ -395,9 +359,9 @@ tbm_bo_alloc(tbm_bufmgr bufmgr, int size, int flags)
                        /* LCOV_EXCL_START */
                        TBM_ERR("error: fail to create of tbm_bo size(%d) flag(%s)\n",
                                        size, _tbm_flag_to_str(flags));
-                       _tbm_set_last_result(TBM_BO_ERROR_BO_ALLOC_FAILED);
+                       _tbm_set_last_result(TBM_ERROR_INVALID_OPERATION);
                        free(bo);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
                        return NULL;
                        /* LCOV_EXCL_STOP */
                }
@@ -415,7 +379,7 @@ tbm_bo_alloc(tbm_bufmgr bufmgr, int size, int flags)
 
        LIST_ADD(&bo->item_link, &bo->bufmgr->bo_list);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return bo;
 }
@@ -423,7 +387,8 @@ tbm_bo_alloc(tbm_bufmgr bufmgr, int size, int flags)
 tbm_bo
 tbm_bo_ref(tbm_bo bo)
 {
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), NULL);
 
@@ -431,7 +396,7 @@ tbm_bo_ref(tbm_bo bo)
 
        TBM_TRACE_BO("bo(%p) ref_cnt(%d)\n", bo, bo->ref_cnt);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return bo;
 }
@@ -439,14 +404,15 @@ tbm_bo_ref(tbm_bo bo)
 void
 tbm_bo_unref(tbm_bo bo)
 {
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_IF_FAIL(_tbm_bo_is_valid(bo));
 
        TBM_TRACE_BO("bo(%p) ref_cnt(%d)\n", bo, bo->ref_cnt - 1);
 
        if (bo->ref_cnt <= 0) {
-               _tbm_bo_mutex_unlock();
+               _tbm_bufmgr_mutex_unlock();
                return;
        }
 
@@ -454,7 +420,7 @@ tbm_bo_unref(tbm_bo bo)
        if (bo->ref_cnt == 0)
                _tbm_bo_free(bo);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 }
 
 tbm_bo_handle
@@ -463,14 +429,14 @@ tbm_bo_map(tbm_bo bo, int device, int opt)
        tbm_bo_handle bo_handle;
        tbm_error_e error;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), (tbm_bo_handle) NULL);
 
        if (!_tbm_bo_lock(bo, device, opt)) {
-               _tbm_set_last_result(TBM_BO_ERROR_LOCK_FAILED);
                TBM_ERR("error: fail to lock bo:%p)\n", bo);
-               _tbm_bo_mutex_unlock();
+               _tbm_bufmgr_mutex_unlock();
                return (tbm_bo_handle) NULL;
        }
 
@@ -478,10 +444,10 @@ tbm_bo_map(tbm_bo bo, int device, int opt)
                bo_handle = bo->bufmgr->bo_func->bo_map(bo->bo_data, device, opt, &error);
                if (bo_handle.ptr == NULL) {
                        /* LCOV_EXCL_START */
-                       _tbm_set_last_result(TBM_BO_ERROR_MAP_FAILED);
+                       _tbm_set_last_result(error);
                        TBM_ERR("error: fail to map bo:%p error:%d\n", bo, error);
                        _tbm_bo_unlock(bo);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
                        return (tbm_bo_handle) NULL;
                        /* LCOV_EXCL_STOP */
                }
@@ -489,10 +455,10 @@ tbm_bo_map(tbm_bo bo, int device, int opt)
                bo_handle = bo->bufmgr->backend->bo_map(bo, device, opt);
                if (bo_handle.ptr == NULL) {
                        /* LCOV_EXCL_START */
-                       _tbm_set_last_result(TBM_BO_ERROR_MAP_FAILED);
+                       _tbm_set_last_result(TBM_ERROR_INVALID_OPERATION);
                        TBM_ERR("error: fail to map bo:%p\n", bo);
                        _tbm_bo_unlock(bo);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
                        return (tbm_bo_handle) NULL;
                        /* LCOV_EXCL_STOP */
                }
@@ -503,7 +469,7 @@ tbm_bo_map(tbm_bo bo, int device, int opt)
 
        TBM_TRACE_BO("bo(%p) map_cnt(%d)\n", bo, bo->map_cnt);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return bo_handle;
 }
@@ -514,7 +480,8 @@ tbm_bo_unmap(tbm_bo bo)
        int ret = 1;
        tbm_error_e error;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
        TBM_BO_RETURN_VAL_IF_FAIL(bo->map_cnt > 0, 0);
@@ -524,9 +491,9 @@ tbm_bo_unmap(tbm_bo bo)
                if (error != TBM_ERROR_NONE) {
                        /* LCOV_EXCL_START */
                        TBM_ERR("error: bo(%p) map_cnt(%d) error(%d)\n", bo, bo->map_cnt, error);
-                       _tbm_set_last_result(TBM_BO_ERROR_UNMAP_FAILED);
+                       _tbm_set_last_result(error);
                        ret = 0;
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
                        return ret;
                        /* LCOV_EXCL_STOP */
                }
@@ -535,8 +502,8 @@ tbm_bo_unmap(tbm_bo bo)
                if (!ret) {
                        /* LCOV_EXCL_START */
                        TBM_ERR("error: bo(%p) map_cnt(%d)\n", bo, bo->map_cnt);
-                       _tbm_set_last_result(TBM_BO_ERROR_UNMAP_FAILED);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_set_last_result(TBM_ERROR_INVALID_OPERATION);
+                       _tbm_bufmgr_mutex_unlock();
                        return ret;
                        /* LCOV_EXCL_STOP */
                }
@@ -549,7 +516,7 @@ tbm_bo_unmap(tbm_bo bo)
 
        _tbm_bo_unlock(bo);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return ret;
 }
@@ -560,7 +527,8 @@ tbm_bo_get_handle(tbm_bo bo, int device)
        tbm_bo_handle bo_handle;
        tbm_error_e error;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), (tbm_bo_handle) NULL);
 
@@ -568,9 +536,9 @@ tbm_bo_get_handle(tbm_bo bo, int device)
                bo_handle = bo->bufmgr->bo_func->bo_get_handle(bo->bo_data, device, &error);
                if (bo_handle.ptr == NULL) {
                        /* LCOV_EXCL_START */
-                       _tbm_set_last_result(TBM_BO_ERROR_GET_HANDLE_FAILED);
                        TBM_ERR("error: bo(%p) bo_handle(%p) error(%d)\n", bo, bo_handle.ptr, error);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_set_last_result(error);
+                       _tbm_bufmgr_mutex_unlock();
                        return (tbm_bo_handle) NULL;
                        /* LCOV_EXCL_STOP */
                }
@@ -578,9 +546,9 @@ tbm_bo_get_handle(tbm_bo bo, int device)
                bo_handle = bo->bufmgr->backend->bo_get_handle(bo, device);
                if (bo_handle.ptr == NULL) {
                        /* LCOV_EXCL_START */
-                       _tbm_set_last_result(TBM_BO_ERROR_GET_HANDLE_FAILED);
                        TBM_ERR("error: bo(%p) bo_handle(%p)\n", bo, bo_handle.ptr);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_set_last_result(TBM_ERROR_INVALID_OPERATION);
+                       _tbm_bufmgr_mutex_unlock();
                        return (tbm_bo_handle) NULL;
                        /* LCOV_EXCL_STOP */
                }
@@ -588,7 +556,7 @@ tbm_bo_get_handle(tbm_bo bo, int device)
 
        TBM_TRACE_BO("bo(%p) bo_handle(%p)\n", bo, bo_handle.ptr);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return bo_handle;
 }
@@ -599,14 +567,16 @@ tbm_bo_export(tbm_bo bo)
        tbm_key ret;
        tbm_error_e error;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
 
        if (bo->bufmgr->backend_module_data) {
                if (!bo->bufmgr->bo_func->bo_export_key) {
                        /* LCOV_EXCL_START */
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
+                       _tbm_set_last_result(TBM_ERROR_NOT_SUPPORTED);
                        return 0;
                        /* LCOV_EXCL_STOP */
                }
@@ -614,16 +584,17 @@ tbm_bo_export(tbm_bo bo)
                ret = bo->bufmgr->bo_func->bo_export_key(bo->bo_data, &error);
                if (!ret) {
                        /* LCOV_EXCL_START */
-                       _tbm_set_last_result(TBM_BO_ERROR_EXPORT_FAILED);
                        TBM_ERR("error: bo(%p) tbm_key(%d) error(%d)\n", bo, ret, error);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_set_last_result(error);
+                       _tbm_bufmgr_mutex_unlock();
                        return ret;
                        /* LCOV_EXCL_STOP */
                }
        } else {
                if (!bo->bufmgr->backend->bo_export) {
                        /* LCOV_EXCL_START */
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
+                       _tbm_set_last_result(TBM_ERROR_NOT_SUPPORTED);
                        return 0;
                        /* LCOV_EXCL_STOP */
                }
@@ -631,9 +602,9 @@ tbm_bo_export(tbm_bo bo)
                ret = bo->bufmgr->backend->bo_export(bo);
                if (!ret) {
                        /* LCOV_EXCL_START */
-                       _tbm_set_last_result(TBM_BO_ERROR_EXPORT_FAILED);
                        TBM_ERR("error: bo(%p) tbm_key(%d)\n", bo, ret);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_set_last_result(TBM_ERROR_INVALID_OPERATION);
+                       _tbm_bufmgr_mutex_unlock();
                        return ret;
                        /* LCOV_EXCL_STOP */
                }
@@ -641,7 +612,7 @@ tbm_bo_export(tbm_bo bo)
 
        TBM_TRACE_BO("bo(%p) tbm_key(%u)\n", bo, ret);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return ret;
 }
@@ -652,14 +623,16 @@ tbm_bo_export_fd(tbm_bo bo)
        tbm_fd ret;
        tbm_error_e error;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), -1);
 
        if (bo->bufmgr->backend_module_data) {
                if (!bo->bufmgr->bo_func->bo_export_fd) {
                        /* LCOV_EXCL_START */
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
+                       _tbm_set_last_result(TBM_ERROR_NOT_SUPPORTED);
                        return -1;
                        /* LCOV_EXCL_STOP */
                }
@@ -667,16 +640,17 @@ tbm_bo_export_fd(tbm_bo bo)
                ret = bo->bufmgr->bo_func->bo_export_fd(bo->bo_data, &error);
                if (ret < 0) {
                        /* LCOV_EXCL_START */
-                       _tbm_set_last_result(TBM_BO_ERROR_EXPORT_FD_FAILED);
                        TBM_ERR("error: bo(%p) tbm_fd(%d) error(%d)\n", bo, ret, error);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_set_last_result(error);
+                       _tbm_bufmgr_mutex_unlock();
                        return ret;
                        /* LCOV_EXCL_STOP */
                }
        } else {
                if (!bo->bufmgr->backend->bo_export_fd) {
                        /* LCOV_EXCL_START */
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
+                       _tbm_set_last_result(TBM_ERROR_NOT_SUPPORTED);
                        return -1;
                        /* LCOV_EXCL_STOP */
                }
@@ -684,9 +658,9 @@ tbm_bo_export_fd(tbm_bo bo)
                ret = bo->bufmgr->backend->bo_export_fd(bo);
                if (ret < 0) {
                        /* LCOV_EXCL_START */
-                       _tbm_set_last_result(TBM_BO_ERROR_EXPORT_FD_FAILED);
                        TBM_ERR("error: bo(%p) tbm_fd(%d)\n", bo, ret);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_set_last_result(TBM_ERROR_INVALID_OPERATION);
+                       _tbm_bufmgr_mutex_unlock();
                        return ret;
                        /* LCOV_EXCL_STOP */
                }
@@ -694,7 +668,7 @@ tbm_bo_export_fd(tbm_bo bo)
 
        TBM_TRACE_BO("bo(%p) tbm_fd(%d)\n", bo, ret);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return ret;
 }
@@ -708,21 +682,24 @@ tbm_bo_import(tbm_bufmgr bufmgr, unsigned int key)
        tbm_error_e error;
        tbm_backend_bo_data *bo_data;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), NULL);
 
        if (bufmgr->backend_module_data) {
                if (!bufmgr->bufmgr_func->bufmgr_import_key) {
                        /* LCOV_EXCL_START */
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
+                       _tbm_set_last_result(TBM_ERROR_NOT_SUPPORTED);
                        return NULL;
                        /* LCOV_EXCL_STOP */
                }
        } else {
                if (!bufmgr->backend->bo_import) {
                        /* LCOV_EXCL_START */
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
+                       _tbm_set_last_result(TBM_ERROR_NOT_SUPPORTED);
                        return NULL;
                        /* LCOV_EXCL_STOP */
                }
@@ -734,7 +711,8 @@ tbm_bo_import(tbm_bufmgr bufmgr, unsigned int key)
        if (!bo) {
                /* LCOV_EXCL_START */
                TBM_ERR("error: fail to import of tbm_bo by key(%d)\n", key);
-               _tbm_bo_mutex_unlock();
+               _tbm_set_last_result(TBM_ERROR_OUT_OF_MEMORY);
+               _tbm_bufmgr_mutex_unlock();
                return NULL;
                /* LCOV_EXCL_STOP */
        }
@@ -746,9 +724,9 @@ tbm_bo_import(tbm_bufmgr bufmgr, unsigned int key)
                if (!bo_data) {
                        /* LCOV_EXCL_START */
                        TBM_ERR("error: fail to import of tbm_bo by key(%d). error(%d)\n", key, error);
-                       _tbm_set_last_result(TBM_BO_ERROR_IMPORT_FAILED);
+                       _tbm_set_last_result(error);
                        free(bo);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
                        return NULL;
                        /* LCOV_EXCL_STOP */
                }
@@ -761,7 +739,7 @@ tbm_bo_import(tbm_bufmgr bufmgr, unsigned int key)
                                                        _tbm_flag_to_str(bo2->flags));
                                        bo2->ref_cnt++;
                                        free(bo);
-                                       _tbm_bo_mutex_unlock();
+                                       _tbm_bufmgr_mutex_unlock();
                                        return bo2;
                                }
                        }
@@ -772,9 +750,9 @@ tbm_bo_import(tbm_bufmgr bufmgr, unsigned int key)
                if (!bo_priv) {
                        /* LCOV_EXCL_START */
                        TBM_ERR("error: fail to import of tbm_bo by key(%d)\n", key);
-                       _tbm_set_last_result(TBM_BO_ERROR_IMPORT_FAILED);
+                       _tbm_set_last_result(TBM_ERROR_INVALID_OPERATION);
                        free(bo);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
                        return NULL;
                        /* LCOV_EXCL_STOP */
                }
@@ -787,7 +765,7 @@ tbm_bo_import(tbm_bufmgr bufmgr, unsigned int key)
                                                        _tbm_flag_to_str(bo2->flags));
                                        bo2->ref_cnt++;
                                        free(bo);
-                                       _tbm_bo_mutex_unlock();
+                                       _tbm_bufmgr_mutex_unlock();
                                        return bo2;
                                }
                        }
@@ -802,6 +780,7 @@ tbm_bo_import(tbm_bufmgr bufmgr, unsigned int key)
                bo->flags = bo->bufmgr->bo_func->bo_get_memory_types(bo->bo_data, &error);
                if (error != TBM_ERROR_NONE) {
                        TBM_ERR("fail to get the bo flags(memory_types)");
+                       _tbm_set_last_result(error);
                        bo->flags = TBM_BO_DEFAULT;
                }
        } else {
@@ -818,7 +797,7 @@ tbm_bo_import(tbm_bufmgr bufmgr, unsigned int key)
 
        LIST_ADD(&bo->item_link, &bo->bufmgr->bo_list);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return bo;
 }
@@ -832,21 +811,24 @@ tbm_bo_import_fd(tbm_bufmgr bufmgr, tbm_fd fd)
        tbm_backend_bo_data *bo_data;
        tbm_error_e error;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(TBM_BUFMGR_IS_VALID(bufmgr), NULL);
 
        if (bufmgr->backend_module_data) {
                if (!bufmgr->bufmgr_func->bufmgr_import_fd) {
                        /* LCOV_EXCL_START */
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
+                       _tbm_set_last_result(TBM_ERROR_NOT_SUPPORTED);
                        return NULL;
                        /* LCOV_EXCL_STOP */
                }
        } else {
                if (!bufmgr->backend->bo_import_fd) {
                        /* LCOV_EXCL_START */
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
+                       _tbm_set_last_result(TBM_ERROR_NOT_SUPPORTED);
                        return NULL;
                        /* LCOV_EXCL_STOP */
                }
@@ -858,7 +840,8 @@ tbm_bo_import_fd(tbm_bufmgr bufmgr, tbm_fd fd)
        if (!bo) {
                /* LCOV_EXCL_START */
                TBM_ERR("error: fail to import tbm_bo by tbm_fd(%d)\n", fd);
-               _tbm_bo_mutex_unlock();
+               _tbm_set_last_result(TBM_ERROR_OUT_OF_MEMORY);
+               _tbm_bufmgr_mutex_unlock();
                return NULL;
                /* LCOV_EXCL_STOP */
        }
@@ -870,9 +853,9 @@ tbm_bo_import_fd(tbm_bufmgr bufmgr, tbm_fd fd)
                if (!bo_data) {
                        /* LCOV_EXCL_START */
                        TBM_ERR("error: fail to import tbm_bo by tbm_fd(%d). error(%d)\n", fd, error);
-                       _tbm_set_last_result(TBM_BO_ERROR_IMPORT_FD_FAILED);
+                       _tbm_set_last_result(error);
                        free(bo);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
                        return NULL;
                        /* LCOV_EXCL_STOP */
                }
@@ -885,7 +868,7 @@ tbm_bo_import_fd(tbm_bufmgr bufmgr, tbm_fd fd)
                                                        _tbm_flag_to_str(bo2->flags));
                                        bo2->ref_cnt++;
                                        free(bo);
-                                       _tbm_bo_mutex_unlock();
+                                       _tbm_bufmgr_mutex_unlock();
                                        return bo2;
                                }
                        }
@@ -896,9 +879,9 @@ tbm_bo_import_fd(tbm_bufmgr bufmgr, tbm_fd fd)
                if (!bo_priv) {
                        /* LCOV_EXCL_START */
                        TBM_ERR("error: fail to import tbm_bo by tbm_fd(%d)\n", fd);
-                       _tbm_set_last_result(TBM_BO_ERROR_IMPORT_FD_FAILED);
+                       _tbm_set_last_result(TBM_ERROR_INVALID_OPERATION);
                        free(bo);
-                       _tbm_bo_mutex_unlock();
+                       _tbm_bufmgr_mutex_unlock();
                        return NULL;
                        /* LCOV_EXCL_STOP */
                }
@@ -911,7 +894,7 @@ tbm_bo_import_fd(tbm_bufmgr bufmgr, tbm_fd fd)
                                                        _tbm_flag_to_str(bo2->flags));
                                        bo2->ref_cnt++;
                                        free(bo);
-                                       _tbm_bo_mutex_unlock();
+                                       _tbm_bufmgr_mutex_unlock();
                                        return bo2;
                                }
                        }
@@ -926,6 +909,7 @@ tbm_bo_import_fd(tbm_bufmgr bufmgr, tbm_fd fd)
                bo->flags = bo->bufmgr->bo_func->bo_get_memory_types(bo->bo_data, &error);
                if (error != TBM_ERROR_NONE) {
                        TBM_ERR("fail to get the bo flags(memory_types)");
+                       _tbm_set_last_result(error);
                        bo->flags = TBM_BO_DEFAULT;
                }
        } else {
@@ -942,7 +926,7 @@ tbm_bo_import_fd(tbm_bufmgr bufmgr, tbm_fd fd)
 
        LIST_ADD(&bo->item_link, &bo->bufmgr->bo_list);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return bo;
 }
@@ -953,20 +937,23 @@ tbm_bo_size(tbm_bo bo)
        int size;
        tbm_error_e error;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
 
        if (bo->bufmgr->backend_module_data) {
                size = bo->bufmgr->bo_func->bo_get_size(bo->bo_data, &error);
-               if (error != TBM_ERROR_NONE)
+               if (error != TBM_ERROR_NONE) {
                        TBM_ERR("fail to get the size of the bo_data(%d).", error);
+                       _tbm_set_last_result(TBM_ERROR_NONE);
+               }
        } else
                size = bo->bufmgr->backend->bo_size(bo);
 
        TBM_TRACE_BO("bo(%p) size(%d)\n", bo, size);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return size;
 }
@@ -974,24 +961,26 @@ tbm_bo_size(tbm_bo bo)
 int
 tbm_bo_locked(tbm_bo bo)
 {
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
 
        if (bo->bufmgr->bo_lock_type == TBM_BUFMGR_BO_LOCK_TYPE_NEVER) {
                TBM_ERR("bo(%p) lock_cnt(%d)\n", bo, bo->lock_cnt);
-               _tbm_bo_mutex_unlock();
+               _tbm_set_last_result(TBM_ERROR_INVALID_OPERATION);
+               _tbm_bufmgr_mutex_unlock();
                return 0;
        }
 
        if (bo->lock_cnt > 0) {
                TBM_TRACE_BO("error: bo(%p) lock_cnt(%d)\n", bo, bo->lock_cnt);
-               _tbm_bo_mutex_unlock();
+               _tbm_bufmgr_mutex_unlock();
                return 1;
        }
 
        TBM_TRACE_BO("bo(%p) lock_cnt(%d)\n", bo, bo->lock_cnt);
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return 0;
 }
@@ -1003,7 +992,8 @@ tbm_bo_swap(tbm_bo bo1, tbm_bo bo2)
        int size1 = -1, size2 = -2;
        void *temp;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo1), 0);
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo2), 0);
@@ -1014,11 +1004,13 @@ tbm_bo_swap(tbm_bo bo1, tbm_bo bo2)
                size1 = bo1->bufmgr->bo_func->bo_get_size(bo1->bo_data, &error1);
                if (error1 != TBM_ERROR_NONE) {
                        TBM_ERR("fail to get the size of bo1.(%d)", error1);
+                       _tbm_set_last_result(error1);
                        goto fail;
                }
                size2 = bo2->bufmgr->bo_func->bo_get_size(bo2->bo_data, &error2);
                if (error2 != TBM_ERROR_NONE) {
                        TBM_ERR("fail to get the size of bo2.(%d)", error2);
+                       _tbm_set_last_result(error2);
                        goto fail;
                }
        } else {
@@ -1028,6 +1020,7 @@ tbm_bo_swap(tbm_bo bo1, tbm_bo bo2)
 
        if (size1 != size2) {
                TBM_ERR("error: bo1 size(%d) and bo2 size(%d) is different.", size1, size2);
+               _tbm_set_last_result(TBM_ERROR_INVALID_OPERATION);
                goto fail;
        }
 
@@ -1037,14 +1030,13 @@ tbm_bo_swap(tbm_bo bo1, tbm_bo bo2)
        bo1->priv = bo2->priv;
        bo2->priv = temp;
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return 1;
 
 fail:
-       _tbm_set_last_result(TBM_BO_ERROR_SWAP_FAILED);
        TBM_ERR("error: bo1(%p) bo2(%p)\n", bo1, bo2);
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return 0;
 }
@@ -1055,7 +1047,8 @@ tbm_bo_add_user_data(tbm_bo bo, unsigned long key,
 {
        tbm_user_data *data;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
 
@@ -1063,14 +1056,16 @@ tbm_bo_add_user_data(tbm_bo bo, unsigned long key,
        data = user_data_lookup(&bo->user_data_list, key);
        if (data) {
                TBM_TRACE_BO("warning: user data already exist key(%ld)\n", key);
-               _tbm_bo_mutex_unlock();
+               _tbm_set_last_result(TBM_ERROR_INVALID_PARAMETER);
+               _tbm_bufmgr_mutex_unlock();
                return 0;
        }
 
        data = user_data_create(key, data_free_func);
        if (!data) {
                TBM_ERR("error: bo(%p) key(%lu)\n", bo, key);
-               _tbm_bo_mutex_unlock();
+               _tbm_set_last_result(TBM_ERROR_INVALID_PARAMETER);
+               _tbm_bufmgr_mutex_unlock();
                return 0;
        }
 
@@ -1078,7 +1073,7 @@ tbm_bo_add_user_data(tbm_bo bo, unsigned long key,
 
        LIST_ADD(&data->item_link, &bo->user_data_list);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return 1;
 }
@@ -1088,20 +1083,23 @@ tbm_bo_delete_user_data(tbm_bo bo, unsigned long key)
 {
        tbm_user_data *old_data;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
 
        if (LIST_IS_EMPTY(&bo->user_data_list)) {
-               TBM_TRACE_BO("error: bo(%p) key(%lu)\n", bo, key);
-               _tbm_bo_mutex_unlock();
+               TBM_TRACE_BO("bo(%p) key(%lu)\n", bo, key);
+               _tbm_set_last_result(TBM_ERROR_INVALID_PARAMETER);
+               _tbm_bufmgr_mutex_unlock();
                return 0;
        }
 
        old_data = user_data_lookup(&bo->user_data_list, key);
        if (!old_data) {
-               TBM_TRACE_BO("error: bo(%p) key(%lu)\n", bo, key);
-               _tbm_bo_mutex_unlock();
+               TBM_TRACE_BO("bo(%p) key(%lu)\n", bo, key);
+               _tbm_set_last_result(TBM_ERROR_INVALID_PARAMETER);
+               _tbm_bufmgr_mutex_unlock();
                return 0;
        }
 
@@ -1109,7 +1107,7 @@ tbm_bo_delete_user_data(tbm_bo bo, unsigned long key)
 
        user_data_delete(old_data);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return 1;
 }
@@ -1119,20 +1117,23 @@ tbm_bo_set_user_data(tbm_bo bo, unsigned long key, void *data)
 {
        tbm_user_data *old_data;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
 
        if (LIST_IS_EMPTY(&bo->user_data_list)) {
                TBM_TRACE_BO("error: bo(%p) key(%lu)\n", bo, key);
-               _tbm_bo_mutex_unlock();
+               _tbm_set_last_result(TBM_ERROR_INVALID_PARAMETER);
+               _tbm_bufmgr_mutex_unlock();
                return 0;
        }
 
        old_data = user_data_lookup(&bo->user_data_list, key);
        if (!old_data) {
                TBM_TRACE_BO("error: bo(%p) key(%lu)\n", bo, key);
-               _tbm_bo_mutex_unlock();
+               _tbm_set_last_result(TBM_ERROR_INVALID_PARAMETER);
+               _tbm_bufmgr_mutex_unlock();
                return 0;
        }
 
@@ -1142,7 +1143,7 @@ tbm_bo_set_user_data(tbm_bo bo, unsigned long key, void *data)
 
        TBM_TRACE_BO("bo(%p) key(%lu) data(%p)\n", bo, key, old_data->data);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return 1;
 }
@@ -1152,21 +1153,24 @@ tbm_bo_get_user_data(tbm_bo bo, unsigned long key, void **data)
 {
        tbm_user_data *old_data;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
+       _tbm_set_last_result(TBM_ERROR_NONE);
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
 
        if (!data || LIST_IS_EMPTY(&bo->user_data_list)) {
                TBM_TRACE_BO("error: bo(%p) key(%lu)\n", bo, key);
-               _tbm_bo_mutex_unlock();
+               _tbm_set_last_result(TBM_ERROR_INVALID_PARAMETER);
+               _tbm_bufmgr_mutex_unlock();
                return 0;
        }
 
        old_data = user_data_lookup(&bo->user_data_list, key);
        if (!old_data) {
-               TBM_TRACE_BO("error: bo(%p) key(%lu)\n", bo, key);
                *data = NULL;
-               _tbm_bo_mutex_unlock();
+               TBM_TRACE_BO("error: bo(%p) key(%lu)\n", bo, key);
+               _tbm_set_last_result(TBM_ERROR_INVALID_PARAMETER);
+               _tbm_bufmgr_mutex_unlock();
                return 0;
        }
 
@@ -1174,25 +1178,17 @@ tbm_bo_get_user_data(tbm_bo bo, unsigned long key, void **data)
 
        TBM_TRACE_BO("bo(%p) key(%lu) data(%p)\n", bo, key, old_data->data);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return 1;
 }
 
-/* LCOV_EXCL_START */
-tbm_error_e
-tbm_get_last_error(void)
-{
-       return tbm_last_error;
-}
-/* LCOV_EXCL_STOP */
-
 int
 tbm_bo_get_flags(tbm_bo bo)
 {
        int flags;
 
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
 
@@ -1200,7 +1196,7 @@ tbm_bo_get_flags(tbm_bo bo)
 
        TBM_TRACE_BO("bo(%p)\n", bo);
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return flags;
 }
@@ -1210,13 +1206,13 @@ tbm_bo_get_flags(tbm_bo bo)
 int
 _tbm_bo_set_surface(tbm_bo bo, tbm_surface_h surface)
 {
-       _tbm_bo_mutex_lock();
+       _tbm_bufmgr_mutex_lock();
 
        TBM_BO_RETURN_VAL_IF_FAIL(_tbm_bo_is_valid(bo), 0);
 
        bo->surface = surface;
 
-       _tbm_bo_mutex_unlock();
+       _tbm_bufmgr_mutex_unlock();
 
        return 1;
 }
Domain: Graphics System / Display Management;