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implements operation read

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Falk Werner
2019-03-03 18:02:30 +01:00
parent de454516cb
commit e4d95f5dc9
2 changed files with 80 additions and 13 deletions
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63
lib/wsfs/provider/operation/read.c
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@@ -1,5 +1,8 @@
#include "wsfs/provider/operation/read_intern.h"
#include <stdio.h>
#include <stdlib.h>
#include <libwebsockets.h>
#include "wsfs/provider/operation/error.h"
#include "wsfs/util.h"
@@ -8,11 +11,28 @@ void wsfsp_read(
json_t * params,
int id)
{
(void) context;
(void) params;
(void) id;
size_t const count = json_array_size(params);
if (4 == count)
{
json_t * inode_holder = json_array_get(params, 0);
json_t * handle_holder = json_array_get(params, 1);
json_t * offset_holder = json_array_get(params, 2);
json_t * length_holder = json_array_get(params, 3);
puts("read");
if (json_is_integer(inode_holder) &&
json_is_integer(handle_holder) &&
json_is_integer(offset_holder) &&
json_is_integer(length_holder))
{
ino_t inode = (ino_t) json_integer_value(inode_holder);
int handle = json_integer_value(handle_holder);
size_t offset = json_integer_value(offset_holder);
size_t length = json_integer_value(length_holder);
struct wsfsp_request * request = wsfsp_request_create(context->request, id);
context->provider->read(request, inode, handle, offset, length, context->user_data);
}
}
}
void wsfsp_read_default(
@@ -31,7 +51,34 @@ void wsfsp_respond_read(
char const * data,
size_t length)
{
(void) request;
(void) data;
(void) length;
if (0 < length)
{
size_t const size = 4 * ((length / 3) + 2);
char * buffer = malloc(size);
if (NULL != buffer)
{
lws_b64_encode_string(data, length, buffer, size);
json_t * result = json_object();
json_object_set_new(result, "data", json_string(buffer));
json_object_set_new(result, "format", json_string("base64"));
json_object_set_new(result, "count", json_integer((int) length));
wsfsp_respond(request, result);
free(buffer);
}
else
{
wsfsp_respond_error(request, -1);
}
}
else
{
json_t * result = json_object();
json_object_set_new(result, "data", json_string(""));
json_object_set_new(result, "format", json_string("identitiy"));
json_object_set_new(result, "count", json_integer(0));
wsfsp_respond(request, result);
}
}