GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
+ by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
#include "gnunet_constants.h"
#include "gnunet_fs_service.h"
#include "gnunet_protocols.h"
-#include "fs.h"
+#include "fs_api.h"
/**
* Context for "GNUNET_FS_get_indexed_files".
*/
-struct GetIndexedContext
+struct GNUNET_FS_GetIndexedContext
{
/**
* Handle to global FS context.
* Function called on each response from the FS
* service with information about indexed files.
*
- * @param cls closure (of type "struct GetIndexedContext*")
+ * @param cls closure (of type "struct GNUNET_FS_GetIndexedContext*")
* @param msg message with indexing information
*/
static void
-handle_index_info (void *cls,
- const struct GNUNET_MessageHeader *msg)
+handle_index_info (void *cls, const struct GNUNET_MessageHeader *msg)
{
- struct GetIndexedContext *gic = cls;
+ struct GNUNET_FS_GetIndexedContext *gic = cls;
const struct IndexInfoMessage *iim;
uint16_t msize;
const char *filename;
if (NULL == msg)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("Failed to receive response for `%s' request from `%s' service.\n"),
- "GET_INDEXED",
- "fs");
- GNUNET_SCHEDULER_add_continuation (gic->h->sched,
- GNUNET_NO,
- gic->cont,
- gic->cont_cls,
- GNUNET_SCHEDULER_REASON_TIMEOUT);
- GNUNET_CLIENT_disconnect (gic->client);
- GNUNET_free (gic);
- return;
- }
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Failed to receive response for `%s' request from `%s' service.\n"),
+ "GET_INDEXED", "fs");
+ (void) gic->iterator (gic->iterator_cls, NULL, NULL);
+ GNUNET_FS_get_indexed_files_cancel (gic);
+ return;
+ }
if (ntohs (msg->type) == GNUNET_MESSAGE_TYPE_FS_INDEX_LIST_END)
- {
- /* normal end-of-list */
- GNUNET_SCHEDULER_add_continuation (gic->h->sched,
- GNUNET_NO,
- gic->cont,
- gic->cont_cls,
- GNUNET_SCHEDULER_REASON_PREREQ_DONE);
- GNUNET_CLIENT_disconnect (gic->client);
- GNUNET_free (gic);
- return;
- }
+ {
+ /* normal end-of-list */
+ (void) gic->iterator (gic->iterator_cls, NULL, NULL);
+ GNUNET_FS_get_indexed_files_cancel (gic);
+ return;
+ }
msize = ntohs (msg->size);
- iim = (const struct IndexInfoMessage*) msg;
- filename = (const char*) &iim[1];
- if ( (ntohs (msg->type) != GNUNET_MESSAGE_TYPE_FS_INDEX_LIST_ENTRY) ||
- (msize <= sizeof (struct IndexInfoMessage)) ||
- (filename[msize-sizeof (struct IndexInfoMessage) -1] != '\0') )
- {
- /* bogus reply */
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("Failed to receive valid response for `%s' request from `%s' service.\n"),
- "GET_INDEXED",
- "fs");
- GNUNET_SCHEDULER_add_continuation (gic->h->sched,
- GNUNET_NO,
- gic->cont,
- gic->cont_cls,
- GNUNET_SCHEDULER_REASON_TIMEOUT);
- GNUNET_CLIENT_disconnect (gic->client);
- GNUNET_free (gic);
- return;
- }
- if (GNUNET_OK !=
- gic->iterator (gic->iterator_cls,
- filename,
- &iim->file_id))
- {
- GNUNET_SCHEDULER_add_continuation (gic->h->sched,
- GNUNET_NO,
- gic->cont,
- gic->cont_cls,
- GNUNET_SCHEDULER_REASON_PREREQ_DONE);
- GNUNET_CLIENT_disconnect (gic->client);
- GNUNET_free (gic);
- return;
- }
+ iim = (const struct IndexInfoMessage *) msg;
+ filename = (const char *) &iim[1];
+ if ((ntohs (msg->type) != GNUNET_MESSAGE_TYPE_FS_INDEX_LIST_ENTRY) ||
+ (msize <= sizeof (struct IndexInfoMessage)) ||
+ (filename[msize - sizeof (struct IndexInfoMessage) - 1] != '\0'))
+ {
+ /* bogus reply */
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _
+ ("Failed to receive valid response for `%s' request from `%s' service.\n"),
+ "GET_INDEXED", "fs");
+ (void) gic->iterator (gic->iterator_cls, NULL, NULL);
+ GNUNET_FS_get_indexed_files_cancel (gic);
+ return;
+ }
+ if (GNUNET_OK != gic->iterator (gic->iterator_cls, filename, &iim->file_id))
+ {
+ GNUNET_FS_get_indexed_files_cancel (gic);
+ return;
+ }
/* get more */
- GNUNET_CLIENT_receive (gic->client,
- &handle_index_info,
- gic,
- GNUNET_CONSTANTS_SERVICE_TIMEOUT);
-}
-
-
-/**
- * Transmit the request to get a list of all
- * indexed files to the "FS" service.
- *
- * @param cls closure (of type "struct GetIndexedContext*")
- * @param size number of bytes availabe in buf
- * @param buf where to write the message, NULL on error
- * @return number of bytes written to buf
- */
-static size_t
-transmit_get_indexed (void *cls,
- size_t size,
- void *buf)
-{
- struct GetIndexedContext *gic = cls;
- struct GNUNET_MessageHeader *hdr;
-
- if (NULL == buf)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("Failed to transmit `%s' request to `%s' service.\n"),
- "GET_INDEXED",
- "fs");
- GNUNET_SCHEDULER_add_continuation (gic->h->sched,
- GNUNET_NO,
- gic->cont,
- gic->cont_cls,
- GNUNET_SCHEDULER_REASON_TIMEOUT);
- GNUNET_CLIENT_disconnect (gic->client);
- GNUNET_free (gic);
- return 0;
- }
- GNUNET_assert (size >= sizeof (struct GNUNET_MessageHeader));
- hdr = buf;
- hdr->size = htons (sizeof (struct GNUNET_MessageHeader));
- hdr->type = htons (GNUNET_MESSAGE_TYPE_FS_INDEX_LIST_GET);
- GNUNET_CLIENT_receive (gic->client,
- &handle_index_info,
- gic,
- GNUNET_CONSTANTS_SERVICE_TIMEOUT);
- return sizeof (struct GNUNET_MessageHeader);
+ GNUNET_CLIENT_receive (gic->client, &handle_index_info, gic,
+ GNUNET_CONSTANTS_SERVICE_TIMEOUT);
}
* @param h handle to the file sharing subsystem
* @param iterator function to call on each indexed file
* @param iterator_cls closure for iterator
- * @param cont continuation to call when done;
- * reason should be "TIMEOUT" (on
- * error) or "PREREQ_DONE" (on success)
- * @param cont_cls closure for cont
+ * @return NULL on error ('iter' is not called)
*/
-void
+struct GNUNET_FS_GetIndexedContext *
GNUNET_FS_get_indexed_files (struct GNUNET_FS_Handle *h,
- GNUNET_FS_IndexedFileProcessor iterator,
- void *iterator_cls,
- GNUNET_SCHEDULER_Task cont,
- void *cont_cls)
+ GNUNET_FS_IndexedFileProcessor iterator,
+ void *iterator_cls)
{
struct GNUNET_CLIENT_Connection *client;
- struct GetIndexedContext *gic;
+ struct GNUNET_FS_GetIndexedContext *gic;
+ struct GNUNET_MessageHeader msg;
- client = GNUNET_CLIENT_connect (h->sched,
- "fs",
- h->cfg);
+ client = GNUNET_CLIENT_connect ("fs", h->cfg);
if (NULL == client)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("Failed to not connect to `%s' service.\n"),
- "fs");
- GNUNET_SCHEDULER_add_continuation (h->sched,
- GNUNET_NO,
- cont,
- cont_cls,
- GNUNET_SCHEDULER_REASON_TIMEOUT);
- return;
- }
-
- gic = GNUNET_malloc (sizeof (struct GetIndexedContext));
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _("Failed to not connect to `%s' service.\n"), "fs");
+ return NULL;
+ }
+ gic = GNUNET_malloc (sizeof (struct GNUNET_FS_GetIndexedContext));
gic->h = h;
gic->client = client;
gic->iterator = iterator;
gic->iterator_cls = iterator_cls;
- gic->cont = cont;
- gic->cont_cls = cont_cls;
- GNUNET_CLIENT_notify_transmit_ready (client,
- sizeof (struct GNUNET_MessageHeader),
- GNUNET_CONSTANTS_SERVICE_TIMEOUT,
- &transmit_get_indexed,
- gic);
+ msg.size = htons (sizeof (struct GNUNET_MessageHeader));
+ msg.type = htons (GNUNET_MESSAGE_TYPE_FS_INDEX_LIST_GET);
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CLIENT_transmit_and_get_response (client, &msg,
+ GNUNET_CONSTANTS_SERVICE_TIMEOUT,
+ GNUNET_YES,
+ &handle_index_info,
+ gic));
+ return gic;
}
+
+/**
+ * Cancel iteration over all indexed files.
+ *
+ * @param gic operation to cancel
+ */
+void
+GNUNET_FS_get_indexed_files_cancel (struct GNUNET_FS_GetIndexedContext *gic)
+{
+ GNUNET_CLIENT_disconnect (gic->client);
+ GNUNET_free (gic);
+}
+
+
/* end of fs_list_indexed.c */
projects / oweals / gnunet.git / blobdiff