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fixed rhizome direct response generation to allow request and

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responses to be of different sizes. #9
This commit is contained in:
gardners 2012-09-21 14:04:53 +02:00
parent f6bab96846
commit cae11bd444
3 changed files with 16 additions and 6 deletions
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2
rhizome.h
View File

@ -484,7 +484,7 @@ rhizome_direct_sync_request
int rhizome_direct_continue_sync_request(rhizome_direct_sync_request *r);
int rhizome_direct_conclude_sync_request(rhizome_direct_sync_request *r);
rhizome_direct_bundle_cursor *rhizome_direct_get_fill_response
(unsigned char *buffer,int size);
(unsigned char *buffer,int size,int max_response_bytes);
typedef struct rhizome_direct_transport_state_http {
int port;

15
rhizome_direct.c
View File

@ -266,16 +266,18 @@ int rhizome_direct_conclude_sync_request(rhizome_direct_sync_request *r)
*/
rhizome_direct_bundle_cursor *rhizome_direct_get_fill_response
(unsigned char *buffer,int size)
(unsigned char *buffer,int size, int max_response_bytes)
{
if (size<10) return NULL;
if (size>65536) return NULL;
if (max_response_bytes<10) return NULL;
if (max_response_bytes>1048576) return NULL;
int them_count=(size-10)/RHIZOME_BAR_BYTES;
unsigned char usbuffer[size];
unsigned char usbuffer[max_response_bytes];
rhizome_direct_bundle_cursor *c=rhizome_direct_bundle_iterator(size);
rhizome_direct_bundle_cursor *c=rhizome_direct_bundle_iterator(max_response_bytes);
assert(c!=NULL);
if (rhizome_direct_bundle_iterator_unpickle_range(c,buffer,10))
{
@ -285,6 +287,7 @@ rhizome_direct_bundle_cursor *rhizome_direct_get_fill_response
}
DEBUGF("unpickled size_high=%lld, limit_size_high=%lld",
c->size_high,c->limit_size_high);
DEBUGF("c->buffer_size=%d",c->buffer_size);
/* Get our list of BARs for the same cursor range */
int us_count=rhizome_direct_bundle_iterator_fill(c,-1);
@ -530,7 +533,11 @@ int rhizome_direct_bundle_iterator_fill(rhizome_direct_bundle_cursor *c,int max_
c->buffer_offset_bytes=1+4+1+4; /* space for pickled cursor range */
/* -1 is magic value for fill right up */
if (max_bars==-1) max_bars=c->buffer_size/RHIZOME_BAR_BYTES;
if (max_bars==-1)
max_bars=(c->buffer_size-c->buffer_offset_bytes)/RHIZOME_BAR_BYTES;
DEBUGF("Iterating cursor size high %lld..%lld, max_bars=%d",
c->size_high,c->limit_size_high,max_bars);
while (bundles_stuffed<max_bars&&c->size_high<=c->limit_size_high)
{

5
rhizome_direct_http.c
View File

@ -112,7 +112,10 @@ int rhizome_direct_form_received(rhizome_http_request *r)
rhizome_direct_clear_temporary_files(r);
return rhizome_server_simple_http_response(r,500,"Couldn't mmap() a file");
}
rhizome_direct_bundle_cursor *c=rhizome_direct_get_fill_response(addr,stat.st_size);
/* Ask for a fill response. Regardless of the size of the set of BARs passed
to us, we will allow up to 64KB of response. */
rhizome_direct_bundle_cursor
*c=rhizome_direct_get_fill_response(addr,stat.st_size,65536);
munmap(addr,stat.st_size);
close(fd);