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fix race condition that can cause crashes at client or exit relay

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Avoid crashing if the client is trying to upload many bytes and the
circuit gets torn down at the same time, or if the flip side
happens on the exit relay. Bugfix on 0.2.0.1-alpha; fixes bug 1150.
This commit is contained in:
Roger Dingledine
2009-11-23 10:13:50 -05:00
parent 0656c12b07
commit a89f51c936
2 changed files with 5 additions and 0 deletions
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src/or/circuitlist.c
+2
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@@ -1097,6 +1097,7 @@ _circuit_mark_for_close(circuit_t *circ, int reason, int line,
edge_connection_t *conn;
for (conn=or_circ->n_streams; conn; conn=conn->next_stream)
connection_edge_destroy(or_circ->p_circ_id, conn);
or_circ->n_streams = NULL;
while (or_circ->resolving_streams) {
conn = or_circ->resolving_streams;
@@ -1120,6 +1121,7 @@ _circuit_mark_for_close(circuit_t *circ, int reason, int line,
edge_connection_t *conn;
for (conn=ocirc->p_streams; conn; conn=conn->next_stream)
connection_edge_destroy(circ->n_circ_id, conn);
ocirc->p_streams = NULL;
}
circ->marked_for_close = line;