add append and truncate to audio file api

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@15503 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_apr.h

@@ -786,6 +786,8 @@ SWITCH_DECLARE(switch_status_t) switch_file_copy(const char *from_path,
  */
 SWITCH_DECLARE(switch_status_t) switch_file_close(switch_file_t *thefile);
 
+SWITCH_DECLARE(switch_status_t) switch_file_trunc(switch_file_t *thefile, int64_t offset);
+
 SWITCH_DECLARE(switch_status_t) switch_file_lock(switch_file_t *thefile, int type);
 
 /**

src/include/switch_core.h

@@ -1505,6 +1505,10 @@ SWITCH_DECLARE(switch_status_t) switch_core_file_get_string(_In_ switch_file_han
   \return SWITCH_STATUS_SUCCESS if the file handle was closed
 */
 SWITCH_DECLARE(switch_status_t) switch_core_file_close(_In_ switch_file_handle_t *fh);
+
+SWITCH_DECLARE(switch_status_t) switch_core_file_truncate(switch_file_handle_t *fh, int64_t offset);
+
+
 ///\}
 
 ///\defgroup speech ASR/TTS Functions

src/include/switch_module_interfaces.h

@@ -262,6 +262,8 @@ struct switch_file_interface {
 	switch_status_t (*file_open) (switch_file_handle_t *, const char *file_path);
 	/*! function to close the file */
 	switch_status_t (*file_close) (switch_file_handle_t *);
+	/*! function to close the file */
+	switch_status_t (*file_truncate) (switch_file_handle_t *, int64_t offset);
 	/*! function to read from the file */
 	switch_status_t (*file_read) (switch_file_handle_t *, void *data, switch_size_t *len);
 	/*! function to write from the file */

src/include/switch_types.h

@@ -1166,7 +1166,8 @@ typedef enum {
 	SWITCH_FILE_OPEN = (1 << 11),
 	SWITCH_FILE_CALLBACK = (1 << 12),
 	SWITCH_FILE_DONE = (1 << 13),
-	SWITCH_FILE_BUFFER_DONE = (1 << 14)
+	SWITCH_FILE_BUFFER_DONE = (1 << 14),
+	SWITCH_FILE_WRITE_APPEND = (1 << 15)
 } switch_file_flag_enum_t;
 typedef uint32_t switch_file_flag_t;