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clean read_to_buf more

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svn:r428
This commit is contained in:
Roger Dingledine 2003-09-05 11:25:24 +00:00
parent 77dfd7826d
commit 99035f3520
3 changed files with 20 additions and 21 deletions
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12
src/or/buffers.c
View File

@ -50,18 +50,6 @@ int read_to_buf(int s, int at_most, char **buf, int *buflen, int *buf_datalen, i
if(at_most == 0)
return 0; /* we shouldn't read anything */
if(!options.LinkPadding && at_most > 10*sizeof(cell_t)) {
/* if no linkpadding: do a rudimentary round-robin so one
* connection can't hog a thickpipe
*/
at_most = 10*(CELL_PAYLOAD_SIZE - RELAY_HEADER_SIZE);
/* XXX this still isn't perfect. now we read 10 relay data payloads per read --
* but if we're reading from a connection that speaks cells, we always
* read a partial cell from the network and can't process it yet. Good
* enough for now though. (And maybe best, to stress our code more.)
*/
}
// log_fn(LOG_DEBUG,"reading at most %d bytes.",at_most);
read_result = read(s, *buf+*buf_datalen, at_most);
if (read_result < 0) {

25
src/or/connection.c
View File

@ -305,8 +305,8 @@ int connection_handle_read(connection_t *conn) {
/* XXX I suspect pollerr may make Windows not get to this point. :( */
router_forget_router(conn->addr,conn->port);
/* FIXME i don't think router_forget_router works. */
}
return -1;
}
return -1;
}
if(connection_process_inbuf(conn) < 0) {
//log_fn(LOG_DEBUG,"connection_process_inbuf returned %d.",retval);
@ -322,12 +322,23 @@ int connection_handle_read(connection_t *conn) {
int connection_read_to_buf(connection_t *conn) {
int read_result;
int at_most = global_read_bucket;
int at_most;
if(connection_speaks_cells(conn)) {
assert(conn->receiver_bucket >= 0);
assert((connection_speaks_cells(conn) && conn->receiver_bucket >= 0) ||
(!connection_speaks_cells(conn) && conn->receiver_bucket < 0));
if(options.LinkPadding) {
at_most = global_read_bucket;
} else {
assert(conn->receiver_bucket < 0);
/* do a rudimentary round-robin so one connection can't hog a thickpipe */
if(connection_speaks_cells(conn)) {
at_most = 10*(CELL_NETWORK_SIZE);
} else {
at_most = 10*(CELL_PAYLOAD_SIZE - RELAY_HEADER_SIZE);
}
if(at_most > global_read_bucket)
at_most = global_read_bucket;
}
if(conn->receiver_bucket >= 0 && at_most > conn->receiver_bucket)
@ -348,7 +359,7 @@ int connection_read_to_buf(connection_t *conn) {
/* If we're not in 'open' state here, then we're never going to finish the
* handshake, because we'll never increment the receiver_bucket. But we
* can't check for that here, because the buf we just read might have enough
* on it to finish the handshake. So we check for that in conn_read().
* on it to finish the handshake. So we check for that in connection_handle_read().
*/
}
}

4
src/or/or.h
View File

@ -34,7 +34,7 @@
#include "../common/fakepoll.h"
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#include <sys/types.h> /* Must be included before sys/stat.h for Ultrix */
#endif
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
@ -489,7 +489,7 @@ void buf_free(char *buf);
int read_to_buf(int s, int at_most, char **buf, int *buflen, int *buf_datalen, int *reached_eof);
/* grab from s, put onto buf, return how many bytes read */
int read_to_buf_tls(tor_tls *tls, int at_most, char **buf, int *buflen, int *buf_datalen);
/* grab from s, put onto buf, return how many bytes read or a TLS
/* grab from tls, put onto buf, return how many bytes read or a TLS
* status (same status codes as tor_tls_read) */
int flush_buf(int s, char **buf, int *buflen, int *buf_flushlen, int *buf_datalen);