vmount module: removed current impl. of the virtual mount system client.

the current design of the virtual mount system turned out to be less
than ideal in terms of both simplicity and robustness. since its
importance seems to be rather marginal at the moment, it is better to
first remove it in its entirety, and then, given sufficient interest,
re-implement and integrate it into the system.

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,
-		&region_addr,
-		&region_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;
-}