diff options
Diffstat (limited to 'src/H5AC.c')
| -rw-r--r-- | src/H5AC.c | 120 |
1 files changed, 120 insertions, 0 deletions
@@ -353,6 +353,44 @@ H5AC_term_package(void) /*------------------------------------------------------------------------- + * + * Function: H5AC_cache_image_pending() + * + * Purpose: Debugging function that tests to see if the load of a + * metadata cache image load is pending (i.e. will be executed + * on the next protect or insert) + * + * Returns TRUE if a cache image load is pending, and FALSE + * if not. Throws an assertion failure on error. + * + * Return: TRUE if a cache image load is pending, and FALSE otherwise. + * + * Programmer: John Mainzer, 1/10/17 + * + * Changes: None. + * + *------------------------------------------------------------------------- + */ +hbool_t +H5AC_cache_image_pending(const H5F_t *f) +{ + H5C_t *cache_ptr; + hbool_t ret_value = FALSE; /* Return value */ + + FUNC_ENTER_NOAPI_NOINIT_NOERR + + /* Sanity checks */ + HDassert(f); + HDassert(f->shared); + cache_ptr = f->shared->cache; + + ret_value = H5C_cache_image_pending(cache_ptr); + + FUNC_LEAVE_NOAPI(ret_value) +} /* H5AC_cache_image_pending() */ + + +/*------------------------------------------------------------------------- * Function: H5AC_create * * Purpose: Initialize the cache just after a file is opened. The @@ -835,6 +873,46 @@ done: /*------------------------------------------------------------------------- + * Function: H5AC_force_cache_image_load() + * + * Purpose: On rare occasions, it is necessary to run + * H5MF_tidy_self_referential_fsm_hack() prior to the first + * metadata cache access. This is a problem as if there is a + * cache image at the end of the file, that routine will + * discard it. + * + * We solve this issue by calling this function, which will + * load the cache image and then call + * H5MF_tidy_self_referential_fsm_hack() to discard it. + * + * Return: SUCCEED on success, and FAIL on failure. + * + * Programmer: John Mainzer + * 1/11/17 + * + *------------------------------------------------------------------------- + */ +herr_t +H5AC_force_cache_image_load(H5F_t *f, hid_t dxpl_id) +{ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI(FAIL) + + /* Sanity checks */ + HDassert(f); + HDassert(f->shared); + HDassert(f->shared->cache); + + if(H5C_force_cache_image_load(f, dxpl_id) < 0) + HGOTO_ERROR(H5E_CACHE, H5E_CANTLOAD, FAIL, "Can't load cache image") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* H5AC_force_cache_image_load() */ + + +/*------------------------------------------------------------------------- * Function: H5AC_get_entry_status * * Purpose: Given a file address, determine whether the metadata @@ -3119,6 +3197,48 @@ done: /*------------------------------------------------------------------------- + * Function: H5AC_unsettle_ring() + * + * Purpose: Advise the metadata cache that the specified free space + * manager ring is no longer settled (if it was on entry). + * + * If the target free space manager ring is already + * unsettled, do nothing, and return SUCCEED. + * + * If the target free space manager ring is settled, and + * we are not in the process of a file shutdown, mark + * the ring as unsettled, and return SUCCEED. + * + * If the target free space manager is settled, and we + * are in the process of a file shutdown, post an error + * message, and return FAIL. + * + * Note that this function simply passes the call on to + * the metadata cache proper, and returns the result. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: John Mainzer + * 10/15/16 + * + *------------------------------------------------------------------------- + */ +herr_t +H5AC_unsettle_ring(H5F_t * f, H5C_ring_t ring) +{ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI(FAIL) + + if(FAIL == (ret_value = H5C_unsettle_ring(f, ring))) + HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C_unsettle_ring() failed") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* H5AC_unsettle_ring() */ + + +/*------------------------------------------------------------------------- * Function: H5AC_remove_entry() * * Purpose: Remove an entry from the cache. Must be not protected, pinned, |