Falk Werner
6 years ago
parent
d4b0912ef1
commit
ad798654df
@ -1,15 +1,75 @@
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#include "wsfs/operations.h"
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#include <errno.h>
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#include "wsfs/util.h"
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#include <string.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "wsfs/jsonrpc.h"
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#include "wsfs/util.h"
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void wsfs_operation_ll_lookup (
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fuse_req_t request,
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fuse_ino_t parent,
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char const * name)
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{
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struct fuse_ctx const * context = fuse_req_ctx(request);
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struct wsfs_operations_context * user_data = fuse_req_userdata(request);
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struct wsfs_jsonrpc * rpc = user_data->rpc;
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struct fuse_entry_param buffer;
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json_t * data = NULL;
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wsfs_status status = wsfs_jsonrpc_invoke(rpc, &data, "lookup", "is", parent, name);
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if (NULL != data)
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{
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json_t * inode_holder = json_object_get(data, "inode");
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json_t * mode_holder = json_object_get(data, "mode");
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json_t * type_holder = json_object_get(data, "type");
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if ((NULL != inode_holder) && (json_is_integer(inode_holder)) &&
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(NULL != mode_holder) && (json_is_integer(mode_holder)) &&
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(NULL != type_holder) && (json_is_string(type_holder)))
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{
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memset(&buffer, 0, sizeof(struct stat));
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buffer.ino = json_integer_value(inode_holder);
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buffer.attr.st_mode = json_integer_value(mode_holder) & 0555;
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char const * type = json_string_value(type_holder);
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if (0 == strcmp("file", type))
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{
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buffer.attr.st_mode |= S_IFREG;
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}
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else if (0 == strcmp("dir", type))
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{
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buffer.attr.st_mode |= S_IFDIR;
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}
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buffer.attr_timeout = user_data->timeout;
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buffer.entry_timeout = user_data->timeout;
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buffer.attr.st_uid = context->uid;
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buffer.attr.st_gid = context->gid;
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buffer.attr.st_nlink = 1;
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buffer.attr.st_size = wsfs_json_get_int(data, "size", 0);
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buffer.attr.st_atime = wsfs_json_get_int(data, "atime", 0);
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buffer.attr.st_mtime = wsfs_json_get_int(data, "mtime", 0);
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buffer.attr.st_ctime = wsfs_json_get_int(data, "ctime", 0);
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}
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else
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{
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status = WSFS_BAD_FORMAT;
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}
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json_decref(data);
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}
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printf("lookup: inode=%lu, name=%s\n", parent, name);
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fuse_reply_err(request, ENOENT);
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if (WSFS_GOOD == status)
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{
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fuse_reply_entry(request, &buffer);
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}
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else
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{
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fuse_reply_err(request, ENOENT);
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}
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}
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@ -1,16 +1,129 @@
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#include "wsfs/operations.h"
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "wsfs/jsonrpc.h"
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#include "wsfs/util.h"
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#include <stdio.h>
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#define WSFS_DIRBUFFER_INITIAL_SIZE 1024
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struct wsfs_dirbuffer
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{
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char * data;
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size_t position;
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size_t capacity;
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};
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static void wsfs_dirbuffer_init(
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struct wsfs_dirbuffer * buffer)
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{
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buffer->data = malloc(WSFS_DIRBUFFER_INITIAL_SIZE);
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buffer->position = 0;
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buffer->capacity = WSFS_DIRBUFFER_INITIAL_SIZE;
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}
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static void wsfs_dirbuffer_dispose(
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struct wsfs_dirbuffer * buffer)
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{
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free(buffer->data);
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}
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static void wsfs_dirbuffer_add(
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fuse_req_t request,
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struct wsfs_dirbuffer * buffer,
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char const * name,
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fuse_ino_t inode)
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{
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size_t const size = fuse_add_direntry(request, NULL, 0, name, NULL, 0);
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size_t remaining = buffer->capacity - buffer->position;
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while (remaining < size)
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{
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buffer->capacity *= 2;
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buffer->data = realloc(buffer->data, buffer->capacity);
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remaining = buffer->capacity - buffer->position;
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}
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struct stat stat_buffer;
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memset(&stat_buffer, 0, sizeof(struct stat));
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stat_buffer.st_ino = inode;
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fuse_add_direntry(request,
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&buffer->data[buffer->position], remaining, name,
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&stat_buffer, buffer->position + size);
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buffer->position += size;
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}
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static size_t min(size_t a, size_t b)
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{
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return (a < b) ? a : b;
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}
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void wsfs_operation_ll_readdir (
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fuse_req_t request,
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fuse_ino_t WSFS_UNUSED_PARAM(inode),
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size_t WSFS_UNUSED_PARAM(size),
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off_t WSFS_UNUSED_PARAM(offset),
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fuse_ino_t inode,
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size_t size,
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off_t offset,
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struct fuse_file_info * WSFS_UNUSED_PARAM(file_info))
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{
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puts("readdir");
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fuse_reply_err(request, ENOENT);
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struct wsfs_operations_context * user_data = fuse_req_userdata(request);
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struct wsfs_jsonrpc * rpc = user_data->rpc;
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struct wsfs_dirbuffer buffer;
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wsfs_dirbuffer_init(&buffer);
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json_t * result = NULL;
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wsfs_status const status = wsfs_jsonrpc_invoke(rpc, &result, "readdir", "i", inode);
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if (NULL != result)
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{
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if (json_is_array(result))
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{
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bool buffer_full = false;
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size_t const count = json_array_size(result);
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for(size_t i = 0; (!buffer_full) && (i < count); i++)
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{
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json_t * entry =json_array_get(result, i);
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if (json_is_object(entry))
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{
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json_t * name_holder = json_object_get(entry, "name");
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json_t * inode_holder = json_object_get(entry, "inode");
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if ((NULL != name_holder) && (json_is_string(name_holder)) &&
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(NULL != inode_holder) && (json_is_integer(inode_holder)))
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{
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char const * name = json_string_value(name_holder);
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fuse_ino_t entry_inode = (fuse_ino_t) json_integer_value(inode_holder);
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wsfs_dirbuffer_add(request, &buffer, name, entry_inode);
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}
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}
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}
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}
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json_decref(result);
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}
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if (WSFS_GOOD == status)
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{
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if (((size_t) offset) < buffer.position)
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{
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fuse_reply_buf(request, &buffer.data[offset],
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min(buffer.position - offset, size));
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}
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else
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{
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fuse_reply_buf(request, NULL, 0);
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}
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}
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else
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{
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fuse_reply_err(request, ENOENT);
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}
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wsfs_dirbuffer_dispose(&buffer);
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}
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