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added implementation of read

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This commit is contained in:
Falk Werner 2019-04-22 12:16:58 +02:00
parent ef69187a91
commit 20fbf8cf96
1 changed files with 78 additions and 16 deletions
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94
lib/webfuse/provider/impl/static_filesystem.c
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@ -5,6 +5,7 @@
#include "webfuse/core/path.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
@ -106,13 +107,14 @@ wfp_static_filesystem_entry_read(
size_t buffer_size,
void * user_data)
{
(void) user_data;
(void) offset;
(void) buffer;
(void) buffer_size;
//struct wfp_static_filesystem_entry * entry = user_data;
size_t result = 0;
struct wfp_static_filesystem_entry * entry = user_data;
if (offset < entry->size)
{
size_t remaining = (entry->size - offset);
result = (buffer_size < remaining) ? buffer_size : remaining;
memcpy(buffer, entry->content, result);
}
return result;
}
@ -128,6 +130,44 @@ wfp_static_filesystem_entry_get_info(
*result_size = entry->size;
}
static size_t
wfp_impl_static_filesystem_file_read(
size_t offset,
char * buffer,
size_t buffer_size,
void * user_data)
{
size_t result = 0;
struct wfp_static_filesystem_entry * entry = user_data;
char const * filename = entry->content;
FILE * file = fopen(filename, "rb");
if (NULL != file)
{
fseek(file, offset, SEEK_SET);
result = fread(buffer, buffer_size, 1, file);
fclose(file);
}
return result;
}
static void
wfp_impl_static_filesystem_file_get_info(
void * user_data,
int * result_mode,
size_t * result_size)
{
struct wfp_static_filesystem_entry * entry = user_data;
char const * filename = entry->content;
struct stat buffer;
stat(filename, &buffer);
*result_mode = (int) (buffer.st_mode & 0777);
*result_size = (size_t) buffer.st_size;
}
static size_t
wfp_static_filesystem_add_dir(
@ -387,11 +427,23 @@ wfp_impl_static_filesystem_add_file(
char const * path,
char const * filename)
{
(void) filesystem;
(void) path;
(void) filename;
struct wf_path * path_ = wf_path_create(path);
if (NULL != path_)
{
size_t parent = wfp_impl_static_filesystem_make_parent(filesystem, path_);
struct wfp_static_filesystem_entry * entry = wfp_static_filesystem_add_entry(filesystem);
entry->parent = parent;
entry->is_file = true;
entry->mode = 0;
entry->content = strdup(filename);
entry->size = 0;
entry->name = strdup(wf_path_get_filename(path_));
entry->get_info = &wfp_impl_static_filesystem_file_get_info;
entry->read = &wfp_impl_static_filesystem_file_read;
entry->user_data = entry;
// ToDo: implement me
wf_path_dispose(path_);
}
}
void
@ -402,11 +454,21 @@ wfp_impl_static_filesystem_add_generic(
wfp_static_filesystem_get_info_fn * get_info,
void * user_data)
{
(void) filesystem;
(void) path;
(void) read;
(void) get_info;
(void) user_data;
struct wf_path * path_ = wf_path_create(path);
if (NULL != path_)
{
size_t parent = wfp_impl_static_filesystem_make_parent(filesystem, path_);
struct wfp_static_filesystem_entry * entry = wfp_static_filesystem_add_entry(filesystem);
entry->parent = parent;
entry->is_file = true;
entry->mode = 0;
entry->content = NULL;
entry->size = 0;
entry->name = strdup(wf_path_get_filename(path_));
entry->get_info = get_info;
entry->read = read;
entry->user_data = user_data;
// ToDo: implement me
wf_path_dispose(path_);
}
}