ftdm_buffer_freespace 92 src/ftdm_buffer.c FT_DECLARE(ftdm_size_t) ftdm_buffer_freespace(ftdm_buffer_t *buffer) ftdm_buffer_freespace 72 src/include/private/ftdm_buffer.h FT_DECLARE(ftdm_size_t) ftdm_buffer_freespace(ftdm_buffer_t *buffer);