diff options
Diffstat (limited to 'src/vmount/ntapi_vms_cache.c')
| -rw-r--r-- | src/vmount/ntapi_vms_cache.c | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/src/vmount/ntapi_vms_cache.c b/src/vmount/ntapi_vms_cache.c deleted file mode 100644 index c97ff04..0000000 --- a/src/vmount/ntapi_vms_cache.c +++ /dev/null @@ -1,216 +0,0 @@ -/********************************************************/ -/* ntapi: Native API core library */ -/* Copyright (C) 2013--2016 Z. Gilboa */ -/* Released under GPLv2 and GPLv3; see COPYING.NTAPI. */ -/********************************************************/ - -#include <psxtypes/psxtypes.h> -#include <ntapi/nt_port.h> -#include <ntapi/nt_vmount.h> -#include <ntapi/ntapi.h> -#include "ntapi_impl.h" - - -typedef struct nt_vms_cache_interface { - nt_vms_system * vms_sys; - struct dalist_ex cache; - size_t alloc_size; - uintptr_t buffer[1]; -} nt_vms_cache_context; - - -typedef struct _nt_vms_cache_record { - void * hfile; - uint32_t dev_name_hash; - nt_large_integer index_number; - intptr_t client_key; - intptr_t server_key; -} nt_vms_cache_record; - - -int32_t __stdcall __ntapi_vms_cache_free( - __in nt_vms_cache vms_cache) -{ - int32_t status; - void * region_addr; - size_t region_size; - - /* validation */ - if (!vms_cache) - return NT_STATUS_INVALID_PARAMETER; - - /* free memory */ - region_addr = vms_cache; - region_size = vms_cache->alloc_size; - - status = __ntapi->zw_free_virtual_memory( - NT_CURRENT_PROCESS_HANDLE, - ®ion_addr, - ®ion_size, - NT_MEM_RELEASE); - - return status; -} - -/* vms optional cache functions */ -nt_vms_cache __stdcall __ntapi_vms_cache_alloc( - __in nt_vms_system * vms_sys, - __in uint32_t flags __reserved, - __in void * options __reserved, - __out int32_t * status __optional) -{ - int32_t _status; - void * buffer; - size_t buffer_size; - nt_vms_cache_context * vms_cache; - - /* unused params */ - (void)flags; - (void)options; - - /* status */ - if (!status) status = &_status; - - /* validation */ - if (!vms_sys) { - *status = NT_STATUS_INVALID_PARAMETER; - return (nt_vms_cache)0; - } - - /* calculate size */ - buffer_size = sizeof(nt_vms_cache_context); - buffer_size += vms_sys->vms_points_cap * (sizeof(nt_vms_cache_record) - sizeof(uintptr_t)); - - /* allocate buffer */ - *status = __ntapi->zw_allocate_virtual_memory( - NT_CURRENT_PROCESS_HANDLE, - &buffer, - 0, - &buffer_size, - NT_MEM_COMMIT, - NT_PAGE_READWRITE); - - if (*status) return (nt_vms_cache)0; - - /* init vms cache */ - vms_cache = (nt_vms_cache_context *)buffer; - vms_cache->vms_sys = vms_sys; - vms_cache->alloc_size = buffer_size; - - /* init list */ - *status = dalist_init_ex( - &vms_cache->cache, - sizeof(nt_vms_cache_record), - 0x1000, - __ntapi->zw_allocate_virtual_memory, - DALIST_MEMFN_NT_ALLOCATE_VIRTUAL_MEMORY); - - if (*status != DALIST_OK) { - *status = NT_STATUS_UNSUCCESSFUL; - __ntapi_vms_cache_free(vms_cache); - return (nt_vms_cache)0; - } - - /* set list buffer */ - buffer_size -= (size_t)&(((nt_vms_cache_context *)0)->buffer); - - *status = dalist_deposit_memory_block( - &vms_cache->cache, - &vms_cache->buffer, - buffer_size); - - return vms_cache; -} - - -int32_t __stdcall __ntapi_vms_cache_record_append( - __in nt_vms_cache cache, - __in void * hfile, - __in uint32_t dev_name_hash, - __in nt_large_integer index_number, - __in intptr_t client_key, - __in intptr_t server_key) -{ - int32_t status; - struct dalist_node_ex * node; - nt_vms_cache_record * cache_record; - - status = dalist_get_node_by_key( - &cache->cache, - &node, - (uintptr_t)hfile, - DALIST_NODE_TYPE_EXISTING, - (uintptr_t *)0); - - if (status != DALIST_OK) - status = NT_STATUS_INTERNAL_ERROR; - else if (node) - status = NT_STATUS_OBJECTID_EXISTS; - else { - status = dalist_get_free_node(&cache->cache,(void **)&node); - - if (status == DALIST_OK) { - cache_record = (nt_vms_cache_record *)&node->dblock; - - __ntapi->tt_aligned_block_memset( - node, - 0, - (uintptr_t)&((struct dalist_node_ex *)0)->dblock + sizeof(*cache_record)); - - node->key = (uintptr_t)hfile; - - cache_record->hfile = hfile; - cache_record->dev_name_hash = dev_name_hash; - cache_record->index_number.quad = index_number.quad; - cache_record->client_key = client_key; - cache_record->server_key = server_key; - - status = dalist_insert_node_by_key( - &cache->cache, - node); - - if (status != DALIST_OK) - dalist_deposit_free_node( - &cache->cache, - node); - } - } - - return status; -} - - -int32_t __stdcall __ntapi_vms_cache_record_remove( - __in nt_vms_cache cache, - __in void * hfile, - __in uint32_t dev_name_hash, - __in nt_large_integer index_number) -{ - int32_t status; - struct dalist_node_ex * node; - - (void)dev_name_hash; - (void)index_number; - - status = dalist_get_node_by_key( - &cache->cache, - &node, - (uintptr_t)hfile, - DALIST_NODE_TYPE_EXISTING, - (uintptr_t *)0); - - if (status != DALIST_OK) - status = NT_STATUS_INTERNAL_ERROR; - else if (node) - status = NT_STATUS_INVALID_PARAMETER; - else { - status = dalist_discard_node( - &cache->cache, - node); - - if (status != DALIST_OK) - status = NT_STATUS_INTERNAL_ERROR; - } - - return status; -} |