diff options
Diffstat (limited to 'src/H5HL.c')
| -rw-r--r-- | src/H5HL.c | 591 |
1 files changed, 441 insertions, 150 deletions
@@ -75,9 +75,6 @@ static herr_t H5HL_minimize_heap_space(H5F_t *f, hid_t dxpl_id, H5HL_t *heap); /* Declare a free list to manage the H5HL_free_t struct */ H5FL_DEFINE(H5HL_free_t); -/* Declare a free list to manage the H5HL_t struct */ -H5FL_DEFINE(H5HL_t); - /* Declare a PQ free list to manage the heap chunk information */ H5FL_BLK_DEFINE(lheap_chunk); @@ -118,8 +115,8 @@ herr_t H5HL_create(H5F_t *f, hid_t dxpl_id, size_t size_hint, haddr_t *addr_p/*out*/) { H5HL_t *heap = NULL; /* Heap created */ + H5HL_prfx_t *prfx = NULL; /* Heap prefix */ hsize_t total_size; /* Total heap size on disk */ - size_t sizeof_hdr; /* Cache H5HL header size for file */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5HL_create, FAIL) @@ -133,21 +130,22 @@ H5HL_create(H5F_t *f, hid_t dxpl_id, size_t size_hint, haddr_t *addr_p/*out*/) size_hint = H5HL_SIZEOF_FREE(f); size_hint = H5HL_ALIGN(size_hint); - /* Cache this for later */ - sizeof_hdr = H5HL_SIZEOF_HDR(f); + /* Allocate memory structure */ + if(NULL == (heap = H5HL_new(H5F_SIZEOF_SIZE(f), H5F_SIZEOF_ADDR(f), H5HL_SIZEOF_HDR(f)))) + HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "memory allocation failed") - /* Allocate file version */ - total_size = sizeof_hdr + size_hint; - if(HADDR_UNDEF == (*addr_p = H5MF_alloc(f, H5FD_MEM_LHEAP, dxpl_id, total_size))) + /* Allocate file space */ + total_size = heap->prfx_size + size_hint; + if(HADDR_UNDEF == (heap->prfx_addr = H5MF_alloc(f, H5FD_MEM_LHEAP, dxpl_id, total_size))) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "unable to allocate file memory") - /* allocate memory version */ - if(NULL == (heap = H5FL_CALLOC(H5HL_t))) - HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "memory allocation failed") - heap->addr = *addr_p + (hsize_t)sizeof_hdr; - heap->heap_alloc = size_hint; - if(NULL == (heap->chunk = H5FL_BLK_CALLOC(lheap_chunk, (sizeof_hdr + size_hint)))) - HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "memory allocation failed") + /* Initialize info */ + heap->single_cache_obj = TRUE; + heap->dblk_addr = heap->prfx_addr + (hsize_t)heap->prfx_size; + heap->dblk_size = size_hint; + if(size_hint) + if(NULL == (heap->dblk_image = H5FL_BLK_CALLOC(lheap_chunk, size_hint))) + HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "memory allocation failed") /* free list */ if(size_hint) { @@ -160,17 +158,32 @@ H5HL_create(H5F_t *f, hid_t dxpl_id, size_t size_hint, haddr_t *addr_p/*out*/) else heap->freelist = NULL; + /* Allocate the heap prefix */ + if(NULL == (prfx = H5HL_prfx_new(heap))) + HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "memory allocation failed") + /* Add to cache */ - if(H5AC_set(f, dxpl_id, H5AC_LHEAP, *addr_p, heap, H5AC__NO_FLAGS_SET) < 0) - HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "unable to cache heap") + if(H5AC_set(f, dxpl_id, H5AC_LHEAP_PRFX, heap->prfx_addr, prfx, H5AC__NO_FLAGS_SET) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "unable to cache local heap prefix") + + /* Set address to return */ + *addr_p = heap->prfx_addr; done: if(ret_value < 0) { - if(H5F_addr_defined(*addr_p)) - H5MF_xfree(f, H5FD_MEM_LHEAP, dxpl_id, *addr_p, total_size); - if(heap) - if(H5HL_dest(f, heap) < 0) - HDONE_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "unable to destroy local heap") + if(prfx) { + if(H5HL_prfx_dest(prfx) < 0) + HDONE_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "unable to destroy local heap prefix") + } /* end if */ + else { + if(heap) { + if(H5F_addr_defined(heap->prfx_addr)) + if(H5MF_xfree(f, H5FD_MEM_LHEAP, dxpl_id, heap->prfx_addr, total_size) < 0) + HDONE_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "can't release heap data?") + if(H5HL_dest(heap) < 0) + HDONE_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "unable to destroy local heap") + } /* end if */ + } /* end else */ } /* end if */ FUNC_LEAVE_NOAPI(ret_value) @@ -178,6 +191,110 @@ done: /*------------------------------------------------------------------------- + * Function: H5HL_dblk_realloc + * + * Purpose: Reallocate data block for heap + * + * Return: Success: Non-negative + * Failure: Negative + * + * Programmer: Quincey Koziol + * koziol@hdfgroup.org + * Oct 12 2008 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5HL_dblk_realloc(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t new_heap_size) +{ + H5HL_dblk_t *dblk; /* Local heap data block */ + haddr_t old_addr; /* Old location of heap data block */ + haddr_t new_addr; /* New location of heap data block */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI_NOINIT(H5HL_dblk_realloc) + + /* check arguments */ + HDassert(heap); + HDassert(new_heap_size > 0); + + /* Release old space on disk */ + old_addr = heap->dblk_addr; + H5_CHECK_OVERFLOW(heap->dblk_size, size_t, hsize_t); + if(H5MF_xfree(f, H5FD_MEM_LHEAP, dxpl_id, old_addr, (hsize_t)heap->dblk_size) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "can't release old heap data?") + + /* Allocate new space on disk */ + H5_CHECK_OVERFLOW(new_heap_size, size_t, hsize_t); + if(HADDR_UNDEF == (new_addr = H5MF_alloc(f, H5FD_MEM_LHEAP, dxpl_id, (hsize_t)new_heap_size))) + HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "unable to allocate file space for heap") + + /* Check if heap data block actually moved in the file */ + if(H5F_addr_eq(old_addr, new_addr)) { + /* Check if heap data block is contiguous w/prefix */ + if(heap->single_cache_obj) { + /* Sanity check */ + HDassert(H5F_addr_eq(heap->prfx_addr + heap->prfx_size, heap->dblk_addr)); + HDassert(heap->prfx); + + /* Resize the heap prefix in the cache */ + if(H5AC_resize_pinned_entry(f, heap->prfx, (size_t)(heap->prfx_size + new_heap_size)) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTRESIZE, FAIL, "unable to resize heap in cache") + } /* end if */ + else { + /* Sanity check */ + HDassert(H5F_addr_ne(heap->prfx_addr + heap->prfx_size, heap->dblk_addr)); + HDassert(heap->dblk); + + /* Resize the heap data block in the cache */ + if(H5AC_resize_pinned_entry(f, heap->dblk, (size_t)new_heap_size) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTRESIZE, FAIL, "unable to resize heap in cache") + } /* end else */ + } /* end if */ + else { + /* Check if heap data block was contiguous w/prefix previously */ + if(heap->single_cache_obj) { + /* Create new heap data block */ + if(NULL == (dblk = H5HL_dblk_new(heap))) + HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "unable to allocate local heap data block") + + /* Resize current heap prefix */ + heap->prfx_size = H5HL_SIZEOF_HDR(f); + if(H5AC_resize_pinned_entry(f, heap->prfx, (size_t)heap->prfx_size) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTRESIZE, FAIL, "unable to resize heap prefix in cache") + + /* Insert data block into cache (pinned) */ + if(H5AC_set(f, dxpl_id, H5AC_LHEAP_DBLK, new_addr, dblk, H5AC__PIN_ENTRY_FLAG) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTINIT, FAIL, "unable to cache local heap data block") + dblk = NULL; + + /* Reset 'single cache object' flag */ + heap->single_cache_obj = FALSE; + } /* end if */ + else { + /* Resize the heap data block in the cache */ + /* (ignore [unlikely] case where heap data block ends up + * contiguous w/heap prefix again. + */ + if(H5AC_resize_pinned_entry(f, heap->dblk, (size_t)new_heap_size) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTRESIZE, FAIL, "unable to resize heap data block in cache") + + /* Relocate the heap data block in the cache */ + if(H5AC_rename(f, H5AC_LHEAP_DBLK, old_addr, new_addr) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTRENAME, FAIL, "unable to move heap data block in cache") + } /* end else */ + } /* end else */ + + /* Update heap info*/ + heap->dblk_addr = new_addr; + heap->dblk_size = new_heap_size; + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5HL_dblk_realloc() */ + + +/*------------------------------------------------------------------------- * Function: H5HL_minimize_heap_space * * Purpose: Go through the heap's freelist and determine if we can @@ -195,8 +312,7 @@ done: static herr_t H5HL_minimize_heap_space(H5F_t *f, hid_t dxpl_id, H5HL_t *heap) { - size_t new_heap_size = heap->heap_alloc; /* New size of heap */ - size_t sizeof_hdr; + size_t new_heap_size = heap->dblk_size; /* New size of heap */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5HL_minimize_heap_space, FAIL) @@ -205,8 +321,6 @@ H5HL_minimize_heap_space(H5F_t *f, hid_t dxpl_id, H5HL_t *heap) HDassert(f); HDassert(heap); - sizeof_hdr = H5HL_SIZEOF_HDR(f); /* cache H5HL header size for file */ - /* * Check to see if we can reduce the size of the heap in memory by * eliminating free blocks at the tail of the buffer before flushing the @@ -219,7 +333,7 @@ H5HL_minimize_heap_space(H5F_t *f, hid_t dxpl_id, H5HL_t *heap) /* Search for a free block at the end of the buffer */ for(tmp_fl = heap->freelist; tmp_fl; tmp_fl = tmp_fl->next) /* Check if the end of this free block is at the end of the buffer */ - if(tmp_fl->offset + tmp_fl->size == heap->heap_alloc) { + if(tmp_fl->offset + tmp_fl->size == heap->dblk_size) { last_fl = tmp_fl; break; } /* end if */ @@ -234,7 +348,7 @@ H5HL_minimize_heap_space(H5F_t *f, hid_t dxpl_id, H5HL_t *heap) * buffer size (and the memory buffer is larger than the * minimum size), reduce or eliminate it. */ - if(last_fl->size >= (heap->heap_alloc / 2) && heap->heap_alloc > H5HL_MIN_HEAP) { + if(last_fl->size >= (heap->dblk_size / 2) && heap->dblk_size > H5HL_MIN_HEAP) { /* * Reduce size of buffer until it's too small or would * eliminate the free block @@ -285,30 +399,16 @@ H5HL_minimize_heap_space(H5F_t *f, hid_t dxpl_id, H5HL_t *heap) * data segment of the heap to another contiguous block of disk * storage. */ - if(new_heap_size != heap->heap_alloc) { - haddr_t old_addr = heap->addr, - new_addr; - - HDassert(new_heap_size < heap->heap_alloc); + if(new_heap_size != heap->dblk_size) { + HDassert(new_heap_size < heap->dblk_size); /* Resize the memory buffer */ - if(NULL == (heap->chunk = H5FL_BLK_REALLOC(lheap_chunk, heap->chunk, (sizeof_hdr + new_heap_size)))) + if(NULL == (heap->dblk_image = H5FL_BLK_REALLOC(lheap_chunk, heap->dblk_image, new_heap_size))) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "memory allocation failed") - /* Release old space on disk */ - /* (Should be safe to free old heap space first, since it's shrinking -QAK) */ - H5_CHECK_OVERFLOW(heap->heap_alloc, size_t, hsize_t); - if(H5MF_xfree(f, H5FD_MEM_LHEAP, dxpl_id, old_addr, (hsize_t)heap->heap_alloc) < 0) - HGOTO_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "unable to free local heap") - - /* Allocate new space on disk */ - H5_CHECK_OVERFLOW(new_heap_size, size_t, hsize_t); - if(HADDR_UNDEF == (new_addr = H5MF_alloc(f, H5FD_MEM_LHEAP, dxpl_id, (hsize_t)new_heap_size))) + /* Reallocate data block in file */ + if(H5HL_dblk_realloc(f, dxpl_id, heap, new_heap_size) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTRESIZE, FAIL, "reallocating data block failed") - - /* Update heap info*/ - heap->addr = new_addr; - heap->heap_alloc = new_heap_size; } /* end if */ done: @@ -319,26 +419,9 @@ done: /*------------------------------------------------------------------------- * Function: H5HL_protect * - * Purpose: This function is a wrapper for the H5AC_protect call. The - * old H5HL_peek call (which this once was) wasn't "safe" - * for FPHDF5. (It'd get a read lock on an object but once - * it got that object, it'd release it keeping the old - * pointer value, which is no longer valid. This won't work - * since the pointer into some metdata block can become - * invalid.) - * - * N.B.: This function is always called in conjunction with - * the H5HL_offset_into function. The return from that - * function is the proper pointer to the heap's object. This - * is done so that the return from this function can be sent - * to H5HL_unprotect. - * - * Return: Success: Ptr to the object. The pointer points to a - * chunk of memory large enough to hold the - * object from the specified offset (usually the - * beginning of the object) to the end of the - * object. Do not attempt to read past the end - * of the object. + * Purpose: This function is a wrapper for the H5AC_protect call. + * + * Return: Success: Non-NULL pointer to the local heap prefix. * Failure: NULL * * Programmer: Bill Wendling @@ -350,7 +433,13 @@ done: H5HL_t * H5HL_protect(H5F_t *f, hid_t dxpl_id, haddr_t addr, H5AC_protect_t rw) { - H5HL_t *ret_value; + H5HL_cache_prfx_ud_t prfx_udata; /* User data for protecting local heap prefix */ + H5HL_prfx_t *prfx = NULL; /* Local heap prefix */ + H5HL_dblk_t *dblk = NULL; /* Local heap data block */ + H5HL_t *heap; /* Heap data structure */ + unsigned prfx_cache_flags = H5AC__NO_FLAGS_SET; /* Cache flags for unprotecting prefix entry */ + unsigned dblk_cache_flags = H5AC__NO_FLAGS_SET; /* Cache flags for unprotecting data block entry */ + H5HL_t *ret_value; /* Return value */ FUNC_ENTER_NOAPI(H5HL_protect, NULL) @@ -358,10 +447,65 @@ H5HL_protect(H5F_t *f, hid_t dxpl_id, haddr_t addr, H5AC_protect_t rw) HDassert(f); HDassert(H5F_addr_defined(addr)); - if(NULL == (ret_value = (H5HL_t *)H5AC_protect(f, dxpl_id, H5AC_LHEAP, addr, NULL, NULL, rw))) - HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to load heap") + /* Construct the user data for protect callback */ + prfx_udata.sizeof_size = H5F_SIZEOF_SIZE(f); + prfx_udata.sizeof_addr = H5F_SIZEOF_ADDR(f); + prfx_udata.sizeof_prfx = H5HL_SIZEOF_HDR(f); + prfx_udata.loaded = FALSE; + prfx_udata.free_block = H5HL_FREE_NULL; + + /* Protect the local heap prefix */ + if(NULL == (prfx = (H5HL_prfx_t *)H5AC_protect(f, dxpl_id, H5AC_LHEAP_PRFX, addr, NULL, &prfx_udata, rw))) + HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to load heap prefix") + + /* Get the pointer to the heap */ + heap = prfx->heap; + + /* Check if the heap is already pinned in memory */ + /* (for re-entrant situation) */ + if(heap->prots == 0) { + /* Check if heap has separate data block */ + if(heap->single_cache_obj) { + /* Set the flag for pinning the prefix when unprotecting it */ + prfx_cache_flags |= H5AC__PIN_ENTRY_FLAG; + } /* end if */ + else { + H5HL_cache_dblk_ud_t dblk_udata; /* User data for protecting local heap data block */ + + /* Construct the user data for protect callback */ + dblk_udata.heap = heap; + dblk_udata.free_block = prfx_udata.loaded ? prfx_udata.free_block : + (heap->freelist ? heap->freelist->offset : H5HL_FREE_NULL); + dblk_udata.loaded = FALSE; + + /* Protect the local heap data block */ + if(NULL == (dblk = (H5HL_dblk_t *)H5AC_protect(f, dxpl_id, H5AC_LHEAP_DBLK, heap->dblk_addr, NULL, &dblk_udata, rw))) + HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, NULL, "unable to load heap data block") + + /* Pin the prefix, if the data block was loaded from file */ + if(dblk_udata.loaded) + prfx_cache_flags |= H5AC__PIN_ENTRY_FLAG; + + /* Set the flag for pinning the data block when unprotecting it */ + dblk_cache_flags |= H5AC__PIN_ENTRY_FLAG; + } /* end if */ + } /* end if */ + + /* Increment # of times heap is protected */ + heap->prots++; + + /* Set return value */ + ret_value = heap; done: + /* Release the prefix from the cache, now pinned */ + if(prfx && H5AC_unprotect(f, dxpl_id, H5AC_LHEAP_PRFX, heap->prfx_addr, prfx, prfx_cache_flags) < 0) + HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, NULL, "unable to release local heap prefix") + + /* Release the data block from the cache, now pinned */ + if(dblk && H5AC_unprotect(f, dxpl_id, H5AC_LHEAP_DBLK, heap->dblk_addr, dblk, dblk_cache_flags) < 0) + HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, NULL, "unable to release local heap data block") + FUNC_LEAVE_NOAPI(ret_value) } /* end H5HL_protect() */ @@ -382,7 +526,7 @@ done: *------------------------------------------------------------------------- */ void * -H5HL_offset_into(H5F_t *f, const H5HL_t *heap, size_t offset) +H5HL_offset_into(const H5HL_t *heap, size_t offset) { /* * We need to have called some other function before this to get a @@ -390,11 +534,11 @@ H5HL_offset_into(H5F_t *f, const H5HL_t *heap, size_t offset) */ FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5HL_offset_into) - HDassert(f); + /* Sanity check */ HDassert(heap); - HDassert(offset < heap->heap_alloc); + HDassert(offset < heap->dblk_size); - FUNC_LEAVE_NOAPI(heap->chunk + H5HL_SIZEOF_HDR(f) + offset) + FUNC_LEAVE_NOAPI(heap->dblk_image + offset) } /* end H5HL_offset_into() */ @@ -413,7 +557,7 @@ H5HL_offset_into(H5F_t *f, const H5HL_t *heap, size_t offset) *------------------------------------------------------------------------- */ herr_t -H5HL_unprotect(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, haddr_t addr) +H5HL_unprotect(H5F_t *f, H5HL_t *heap) { herr_t ret_value = SUCCEED; @@ -422,10 +566,28 @@ H5HL_unprotect(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, haddr_t addr) /* check arguments */ HDassert(f); HDassert(heap); - HDassert(H5F_addr_defined(addr)); - if(H5AC_unprotect(f, dxpl_id, H5AC_LHEAP, addr, (void *)heap, H5AC__NO_FLAGS_SET) < 0) - HGOTO_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release local heap") + /* Decrement # of times heap is protected */ + heap->prots--; + + /* Check for last unprotection of heap */ + if(heap->prots == 0) { + /* Check for separate heap data block */ + if(heap->single_cache_obj) { + /* Mark local heap prefix as evictable again */ + if(H5AC_unpin_entry(f, heap->prfx) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTUNPIN, FAIL, "unable to unpin local heap data block") + } /* end if */ + else { + /* Sanity check */ + HDassert(heap->dblk); + + /* Mark local heap data block as evictable again */ + /* (data block still pins prefix) */ + if(H5AC_unpin_entry(f, heap->dblk) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTUNPIN, FAIL, "unable to unpin local heap data block") + } /* end else */ + } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) @@ -464,12 +626,55 @@ H5HL_remove_free(H5HL_t *heap, H5HL_free_t *fl) /*------------------------------------------------------------------------- + * Function: H5HL_dirty + * + * Purpose: Mark heap as dirty + * + * Return: Success: Non-negative + * Failure: Negative + * + * Programmer: Quincey Koziol + * koziol@hdfgroup.org + * Oct 12 2008 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5HL_dirty(H5F_t *f, H5HL_t *heap) +{ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI_NOINIT(H5HL_dirty) + + /* check arguments */ + HDassert(f); + HDassert(heap); + HDassert(heap->prfx); + + /* Mark heap data block as dirty, if there is one */ + if(!heap->single_cache_obj) { + /* Sanity check */ + HDassert(heap->dblk); + + if(H5AC_mark_pinned_or_protected_entry_dirty(f, heap->dblk) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTMARKDIRTY, FAIL, "unable to mark heap data block as dirty") + } /* end if */ + + /* Mark heap prefix as dirty */ + if(H5AC_mark_pinned_or_protected_entry_dirty(f, heap->prfx) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTMARKDIRTY, FAIL, "unable to mark heap prefix as dirty") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5HL_dirty() */ + + +/*------------------------------------------------------------------------- * Function: H5HL_insert * * Purpose: Inserts a new item into the heap. * * Return: Success: Offset of new item within heap. - * * Failure: UFAIL * * Programmer: Robb Matzke @@ -485,7 +690,6 @@ H5HL_insert(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t buf_size, const void * size_t offset = 0; size_t need_size; hbool_t found; - size_t sizeof_hdr; /* Cache H5HL header size for file */ size_t ret_value; /* Return value */ FUNC_ENTER_NOAPI(H5HL_insert, UFAIL) @@ -502,12 +706,9 @@ H5HL_insert(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t buf_size, const void * * so we just accept that an extra flush of the heap info could occur * if an error occurs -QAK) */ - if(H5AC_mark_pinned_or_protected_entry_dirty(f, heap) < 0) + if(H5HL_dirty(f, heap) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTMARKDIRTY, UFAIL, "unable to mark heap as dirty") - /* Cache this for later */ - sizeof_hdr = H5HL_SIZEOF_HDR(f); - /* * In order to keep the free list descriptors aligned on word boundaries, * whatever that might mean, we round the size up to the next multiple of @@ -550,12 +751,13 @@ H5HL_insert(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t buf_size, const void * */ if(found == FALSE) { size_t need_more; /* How much more space we need */ - size_t new_heap_alloc; /* Final size of space allocated for heap */ + size_t new_dblk_size; /* Final size of space allocated for heap data block */ + size_t old_dblk_size; /* Previous size of space allocated for heap data block */ htri_t extended; /* Whether the local heap's data segment on disk was extended */ /* At least double the heap's size, making certain there's enough room * for the new object */ - need_more = MAX(need_size, heap->heap_alloc); + need_more = MAX(need_size, heap->dblk_size); /* If there is no last free block or it's not at the end of the heap, * and the amount of space to allocate is not big enough to include at @@ -563,33 +765,46 @@ H5HL_insert(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t buf_size, const void * * space requested to just the amount of space needed. (Generally * speaking, this only occurs when the heap is small -QAK) */ - if(!(last_fl && last_fl->offset + last_fl->size == heap->heap_alloc) + if(!(last_fl && last_fl->offset + last_fl->size == heap->dblk_size) && (need_more < (need_size + H5HL_SIZEOF_FREE(f)))) need_more = need_size; - new_heap_alloc = heap->heap_alloc + need_more; - HDassert(heap->heap_alloc < new_heap_alloc); - H5_CHECK_OVERFLOW(heap->heap_alloc, size_t, hsize_t); - H5_CHECK_OVERFLOW(new_heap_alloc, size_t, hsize_t); + new_dblk_size = heap->dblk_size + need_more; + HDassert(heap->dblk_size < new_dblk_size); + old_dblk_size = heap->dblk_size; + H5_CHECK_OVERFLOW(heap->dblk_size, size_t, hsize_t); + H5_CHECK_OVERFLOW(new_dblk_size, size_t, hsize_t); /* Extend current heap if possible */ - extended = H5MF_try_extend(f, dxpl_id, H5FD_MEM_LHEAP, heap->addr, (hsize_t)(heap->heap_alloc), (hsize_t)need_more); + extended = H5MF_try_extend(f, dxpl_id, H5FD_MEM_LHEAP, heap->dblk_addr, (hsize_t)(heap->dblk_size), (hsize_t)need_more); if(extended < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTEXTEND, UFAIL, "error trying to extend heap") - /* If we couldn't extend the heap, release old chunk and allocate a new one */ - if(extended == FALSE) { - /* Release old space on disk */ - if(H5MF_xfree(f, H5FD_MEM_LHEAP, dxpl_id, heap->addr, (hsize_t)heap->heap_alloc) < 0) - HGOTO_ERROR(H5E_HEAP, H5E_CANTFREE, UFAIL, "unable to free local heap") - - /* allocate new disk space for the heap */ - if((heap->addr = H5MF_alloc(f, H5FD_MEM_LHEAP, dxpl_id, (hsize_t)new_heap_alloc)) == HADDR_UNDEF) - HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, UFAIL, "unable to allocate file space for heap") + /* Check if we extended the heap data block in file */ + if(extended == TRUE) { + /* Check for prefix & data block contiguous */ + if(heap->single_cache_obj) { + /* Resize prefix+data block */ + if(H5AC_resize_pinned_entry(f, heap->prfx, (size_t)(heap->prfx_size + new_dblk_size)) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTRESIZE, UFAIL, "unable to resize heap prefix in cache") + } /* end if */ + else { + /* Resize 'standalone' data block */ + if(H5AC_resize_pinned_entry(f, heap->dblk, (size_t)new_dblk_size) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTRESIZE, UFAIL, "unable to resize heap data block in cache") + } /* end else */ + + /* Note new size */ + heap->dblk_size = new_dblk_size; + } /* end if */ + else { /* ...if we can't, allocate a new chunk & release the old */ + /* Reallocate data block in file */ + if(H5HL_dblk_realloc(f, dxpl_id, heap, new_dblk_size) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTRESIZE, UFAIL, "reallocating data block failed") } /* end if */ /* If the last free list in the heap is at the end of the heap, extend it */ - if(last_fl && last_fl->offset + last_fl->size == heap->heap_alloc) { + if(last_fl && last_fl->offset + last_fl->size == old_dblk_size) { /* * Increase the size of the last free block. */ @@ -614,11 +829,11 @@ H5HL_insert(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t buf_size, const void * * Create a new free list element large enough that we can * take some space out of it right away. */ - offset = heap->heap_alloc; + offset = old_dblk_size; if(need_more - need_size >= H5HL_SIZEOF_FREE(f)) { if(NULL == (fl = H5FL_MALLOC(H5HL_free_t))) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, UFAIL, "memory allocation failed") - fl->offset = heap->heap_alloc + need_size; + fl->offset = old_dblk_size + need_size; fl->size = need_more - need_size; HDassert(fl->offset == H5HL_ALIGN(fl->offset)); HDassert(fl->size == H5HL_ALIGN(fl->size)); @@ -640,21 +855,20 @@ H5HL_insert(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t buf_size, const void * if (H5DEBUG(HL)) { fprintf(H5DEBUG(HL), "H5HL: resize mem buf from %lu to %lu bytes\n", - (unsigned long)(heap->heap_alloc), - (unsigned long)(heap->heap_alloc + need_more)); + (unsigned long)(old_dblk_size), + (unsigned long)(old_dblk_size + need_more)); } #endif - heap->heap_alloc = new_heap_alloc; - if(NULL == (heap->chunk = H5FL_BLK_REALLOC(lheap_chunk, heap->chunk, (sizeof_hdr + heap->heap_alloc)))) + if(NULL == (heap->dblk_image = H5FL_BLK_REALLOC(lheap_chunk, heap->dblk_image, heap->dblk_size))) HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, UFAIL, "memory allocation failed") /* Clear new section so junk doesn't appear in the file */ /* (Avoid clearing section which will be overwritten with newly inserted data) */ - HDmemset(heap->chunk + sizeof_hdr + offset + buf_size, 0, (new_heap_alloc - (offset + buf_size))); + HDmemset(heap->dblk_image + offset + buf_size, 0, (new_dblk_size - (offset + buf_size))); } /* end if */ /* Copy the data into the heap */ - HDmemcpy(heap->chunk + sizeof_hdr + offset, buf, buf_size); + HDmemcpy(heap->dblk_image + offset, buf, buf_size); /* Set return value */ ret_value = offset; @@ -704,8 +918,8 @@ H5HL_remove(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t offset, size_t size) size = H5HL_ALIGN(size); - HDassert(offset < heap->heap_alloc); - HDassert(offset + size <= heap->heap_alloc); + HDassert(offset < heap->dblk_size); + HDassert(offset + size <= heap->dblk_size); /* Mark heap as dirty in cache */ /* (A bit early in the process, but it's difficult to determine in the @@ -713,7 +927,7 @@ H5HL_remove(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t offset, size_t size) * so we just accept that an extra flush of the heap info could occur * if an error occurs -QAK) */ - if(H5AC_mark_pinned_or_protected_entry_dirty(f, heap) < 0) + if(H5HL_dirty(f, heap) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTMARKDIRTY, FAIL, "unable to mark heap as dirty") /* @@ -738,8 +952,8 @@ H5HL_remove(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t offset, size_t size) HDassert(fl->offset == H5HL_ALIGN(fl->offset)); HDassert(fl->size == H5HL_ALIGN(fl->size)); fl2 = H5HL_remove_free(heap, fl2); - if(((fl->offset + fl->size) == heap->heap_alloc ) && - ((2 * fl->size) > heap->heap_alloc )) { + if(((fl->offset + fl->size) == heap->dblk_size) && + ((2 * fl->size) > heap->dblk_size)) { if(H5HL_minimize_heap_space(f, dxpl_id, heap) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "heap size minimization failed") } @@ -747,8 +961,8 @@ H5HL_remove(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t offset, size_t size) } fl2 = fl2->next; } - if(((fl->offset + fl->size) == heap->heap_alloc) && - ((2 * fl->size) > heap->heap_alloc)) { + if(((fl->offset + fl->size) == heap->dblk_size) && + ((2 * fl->size) > heap->dblk_size)) { if(H5HL_minimize_heap_space(f, dxpl_id, heap) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "heap size minimization failed") } @@ -762,8 +976,8 @@ H5HL_remove(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t offset, size_t size) fl->size += fl2->size; HDassert(fl->size == H5HL_ALIGN(fl->size)); fl2 = H5HL_remove_free(heap, fl2); - if(((fl->offset + fl->size) == heap->heap_alloc) && - ((2 * fl->size) > heap->heap_alloc)) { + if(((fl->offset + fl->size) == heap->dblk_size) && + ((2 * fl->size) > heap->dblk_size)) { if(H5HL_minimize_heap_space(f, dxpl_id, heap) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "heap size minimization failed") } /* end if */ @@ -771,8 +985,8 @@ H5HL_remove(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t offset, size_t size) } /* end if */ fl2 = fl2->next; } /* end while */ - if(((fl->offset + fl->size) == heap->heap_alloc) && - ((2 * fl->size) > heap->heap_alloc)) { + if(((fl->offset + fl->size) == heap->dblk_size) && + ((2 * fl->size) > heap->dblk_size)) { if(H5HL_minimize_heap_space(f, dxpl_id, heap) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "heap size minimization failed") } /* end if */ @@ -811,8 +1025,8 @@ H5HL_remove(H5F_t *f, hid_t dxpl_id, H5HL_t *heap, size_t offset, size_t size) heap->freelist->prev = fl; heap->freelist = fl; - if(((fl->offset + fl->size) == heap->heap_alloc) && - ((2 * fl->size) > heap->heap_alloc)) { + if(((fl->offset + fl->size) == heap->dblk_size) && + ((2 * fl->size) > heap->dblk_size)) { if(H5HL_minimize_heap_space(f, dxpl_id, heap) < 0) HGOTO_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "heap size minimization failed") } /* end if */ @@ -838,9 +1052,12 @@ done: herr_t H5HL_delete(H5F_t *f, hid_t dxpl_id, haddr_t addr) { - H5HL_t *heap = NULL; /* Local heap to delete */ + H5HL_t *heap; /* Local heap to delete */ + H5HL_cache_prfx_ud_t prfx_udata; /* User data for protecting local heap prefix */ + H5HL_prfx_t *prfx = NULL; /* Local heap prefix */ + H5HL_dblk_t *dblk = NULL; /* Local heap data block */ unsigned cache_flags = H5AC__NO_FLAGS_SET; /* Flags for unprotecting heap */ - herr_t ret_value = SUCCEED; /* Return value */ + herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5HL_delete, FAIL) @@ -848,16 +1065,71 @@ H5HL_delete(H5F_t *f, hid_t dxpl_id, haddr_t addr) HDassert(f); HDassert(H5F_addr_defined(addr)); - /* Get heap pointer */ - if(NULL == (heap = (H5HL_t *)H5AC_protect(f, dxpl_id, H5AC_LHEAP, addr, NULL, NULL, H5AC_WRITE))) - HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to load heap") + /* Construct the user data for protect callback */ + prfx_udata.sizeof_size = H5F_SIZEOF_SIZE(f); + prfx_udata.sizeof_addr = H5F_SIZEOF_ADDR(f); + prfx_udata.sizeof_prfx = H5HL_SIZEOF_HDR(f); + prfx_udata.loaded = FALSE; + prfx_udata.free_block = H5HL_FREE_NULL; + + /* Protect the local heap prefix */ + if(NULL == (prfx = (H5HL_prfx_t *)H5AC_protect(f, dxpl_id, H5AC_LHEAP_PRFX, addr, NULL, &prfx_udata, H5AC_WRITE))) + HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to load heap prefix") + + /* Get the pointer to the heap */ + heap = prfx->heap; + + /* Check if heap has separate data block */ + if(!heap->single_cache_obj) { + H5HL_cache_dblk_ud_t dblk_udata; /* User data for protecting local heap data block */ + + /* Construct the user data for protect callback */ + dblk_udata.heap = heap; + dblk_udata.free_block = prfx_udata.loaded ? prfx_udata.free_block : + (heap->freelist ? heap->freelist->offset : H5HL_FREE_NULL); + dblk_udata.loaded = FALSE; + + /* Protect the local heap data block */ + if(NULL == (dblk = (H5HL_dblk_t *)H5AC_protect(f, dxpl_id, H5AC_LHEAP_DBLK, heap->dblk_addr, NULL, &dblk_udata, H5AC_WRITE))) + HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to load heap data block") + + /* Pin the prefix, if the data block was loaded from file */ + if(dblk_udata.loaded) { + if(H5AC_pin_protected_entry(f, prfx) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTPIN, FAIL, "unable to pin local heap prefix") + } /* end if */ + } /* end if */ - /* Set the cache flags to delete the heap & free its file space */ + /* Check if the heap is contiguous on disk */ + if(heap->single_cache_obj) { + /* Free the contiguous local heap in one call */ + H5_CHECK_OVERFLOW(heap->prfx_size + heap->dblk_size, size_t, hsize_t); + if(H5MF_xfree(f, H5FD_MEM_LHEAP, dxpl_id, addr, (hsize_t)(heap->prfx_size + heap->dblk_size)) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "unable to free contiguous local heap") + } /* end if */ + else { + /* Free the local heap's prefix */ + H5_CHECK_OVERFLOW(heap->prfx_size, size_t, hsize_t); + if(H5MF_xfree(f, H5FD_MEM_LHEAP, dxpl_id, heap->prfx_addr, (hsize_t)heap->prfx_size) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "unable to free local heap header") + + /* Free the local heap's data block */ + H5_CHECK_OVERFLOW(heap->dblk_size, size_t, hsize_t); + if(H5MF_xfree(f, H5FD_MEM_LHEAP, dxpl_id, heap->dblk_addr, (hsize_t)heap->dblk_size) < 0) + HGOTO_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "unable to free local heap data") + } /* end else */ + + /* Set the flags for releasing the prefix and data block */ cache_flags |= H5AC__DIRTIED_FLAG | H5AC__DELETED_FLAG | H5AC__FREE_FILE_SPACE_FLAG; done: - if(heap && H5AC_unprotect(f, dxpl_id, H5AC_LHEAP, addr, heap, cache_flags) < 0) - HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release local heap") + /* Release the data block from the cache, now deleted */ + if(dblk && H5AC_unprotect(f, dxpl_id, H5AC_LHEAP_DBLK, heap->dblk_addr, dblk, cache_flags) < 0) + HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release local heap data block") + + /* Release the prefix from the cache, now deleted */ + if(prfx && H5AC_unprotect(f, dxpl_id, H5AC_LHEAP_PRFX, heap->prfx_addr, prfx, cache_flags) < 0) + HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release local heap prefix") FUNC_LEAVE_NOAPI(ret_value) } /* end H5HL_delete() */ @@ -879,7 +1151,9 @@ done: herr_t H5HL_get_size(H5F_t *f, hid_t dxpl_id, haddr_t addr, size_t *size) { - H5HL_t *heap = NULL; /* Heap to query */ + H5HL_cache_prfx_ud_t prfx_udata; /* User data for protecting local heap prefix */ + H5HL_prfx_t *prfx = NULL; /* Local heap prefix */ + H5HL_t *heap; /* Heap data structure */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5HL_get_size, FAIL) @@ -889,16 +1163,26 @@ H5HL_get_size(H5F_t *f, hid_t dxpl_id, haddr_t addr, size_t *size) HDassert(H5F_addr_defined(addr)); HDassert(size); - /* Get heap pointer */ - if(NULL == (heap = (H5HL_t *)H5AC_protect(f, dxpl_id, H5AC_LHEAP, addr, NULL, NULL, H5AC_READ))) - HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to load heap") + /* Construct the user data for protect callback */ + prfx_udata.sizeof_size = H5F_SIZEOF_SIZE(f); + prfx_udata.sizeof_addr = H5F_SIZEOF_ADDR(f); + prfx_udata.sizeof_prfx = H5HL_SIZEOF_HDR(f); + prfx_udata.loaded = FALSE; + prfx_udata.free_block = H5HL_FREE_NULL; + + /* Protect the local heap prefix */ + if(NULL == (prfx = (H5HL_prfx_t *)H5AC_protect(f, dxpl_id, H5AC_LHEAP_PRFX, addr, NULL, &prfx_udata, H5AC_READ))) + HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to load heap prefix") + + /* Get the pointer to the heap */ + heap = prfx->heap; /* Set the size to return */ - *size = heap->heap_alloc; + *size = heap->dblk_size; done: - if(heap && H5AC_unprotect(f, dxpl_id, H5AC_LHEAP, addr, heap, H5AC__NO_FLAGS_SET) < 0) - HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release local heap") + if(prfx && H5AC_unprotect(f, dxpl_id, H5AC_LHEAP_PRFX, heap->prfx_addr, prfx, H5AC__NO_FLAGS_SET) < 0) + HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release local heap prefix") FUNC_LEAVE_NOAPI(ret_value) } /* end H5HL_get_size() */ @@ -920,8 +1204,9 @@ done: herr_t H5HL_heapsize(H5F_t *f, hid_t dxpl_id, haddr_t addr, hsize_t *heap_size) { - H5HL_t *heap = NULL; /* Heap to query */ - size_t local_heap_size = 0; + H5HL_cache_prfx_ud_t prfx_udata; /* User data for protecting local heap prefix */ + H5HL_prfx_t *prfx = NULL; /* Local heap prefix */ + H5HL_t *heap; /* Heap data structure */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5HL_heapsize, FAIL) @@ -931,20 +1216,26 @@ H5HL_heapsize(H5F_t *f, hid_t dxpl_id, haddr_t addr, hsize_t *heap_size) HDassert(H5F_addr_defined(addr)); HDassert(heap_size); - /* Get heap pointer */ - if(NULL == (heap = (H5HL_t *)H5AC_protect(f, dxpl_id, H5AC_LHEAP, addr, NULL, NULL, H5AC_READ))) - HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to load heap") + /* Construct the user data for protect callback */ + prfx_udata.sizeof_size = H5F_SIZEOF_SIZE(f); + prfx_udata.sizeof_addr = H5F_SIZEOF_ADDR(f); + prfx_udata.sizeof_prfx = H5HL_SIZEOF_HDR(f); + prfx_udata.loaded = FALSE; + prfx_udata.free_block = H5HL_FREE_NULL; + + /* Protect the local heap prefix */ + if(NULL == (prfx = (H5HL_prfx_t *)H5AC_protect(f, dxpl_id, H5AC_LHEAP_PRFX, addr, NULL, &prfx_udata, H5AC_READ))) + HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to load heap prefix") - /* Get the total size of the local heap */ - if(H5HL_size(f, heap, &local_heap_size) < 0) - HGOTO_ERROR(H5E_HEAP, H5E_CANTGET, FAIL, "unable to compute size of local heap") + /* Get the pointer to the heap */ + heap = prfx->heap; /* Accumulate the size of the local heap */ - *heap_size += (hsize_t)local_heap_size; + *heap_size += (hsize_t)(heap->prfx_size + heap->dblk_size); done: - if(heap && H5AC_unprotect(f, dxpl_id, H5AC_LHEAP, addr, heap, H5AC__NO_FLAGS_SET) < 0) - HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release local heap") + if(prfx && H5AC_unprotect(f, dxpl_id, H5AC_LHEAP_PRFX, heap->prfx_addr, prfx, H5AC__NO_FLAGS_SET) < 0) + HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release local heap prefix") FUNC_LEAVE_NOAPI(ret_value) } /* end H5HL_heapsize() */ |