commit debef8f0cd8fbe72fb40bd811c636bb66c7a9001 Author: Andrea Shepard <andrea@torproject.org> Date: Thu Sep 27 13:51:04 2012 -0700 Consistently allow policy alloc_cmux_data() and alloc_circ_data() functions to return NULL if the policy does not use this in circuitmux.c --- src/or/circuitmux.c | 35 ++++++++++++++--------------------- 1 files changed, 14 insertions(+), 21 deletions(-) diff --git a/src/or/circuitmux.c b/src/or/circuitmux.c index 4e33569..b5dda9e 100644 --- a/src/or/circuitmux.c +++ b/src/or/circuitmux.c @@ -293,7 +293,6 @@ circuitmux_detach_all_circuits(circuitmux_t *cmux) * free it */ tor_assert(cmux->policy); - tor_assert(cmux->policy_data); tor_assert(cmux->policy->free_circ_data); /* Call free_circ_data() */ cmux->policy->free_circ_data(cmux, @@ -805,8 +804,10 @@ circuitmux_attach_circuit(circuitmux_t *cmux, circuit_t *circ, hashent->muxinfo.cell_count = cell_count; hashent->muxinfo.direction = direction; /* Allocate policy specific circuit data if we need it */ - if (cmux->policy && cmux->policy_data && - cmux->policy->alloc_circ_data) { + if (cmux->policy && cmux->policy->alloc_circ_data) { + /* Assert that we have the means to free policy-specific data */ + tor_assert(cmux->policy->free_circ_data); + /* Allocate it */ hashent->muxinfo.policy_data = cmux->policy->alloc_circ_data(cmux, cmux->policy_data, @@ -898,7 +899,6 @@ circuitmux_detach_circuit(circuitmux_t *cmux, circuit_t *circ) if (hashent->muxinfo.policy_data) { /* If we have policy data, assert that we have the means to free it */ tor_assert(cmux->policy); - tor_assert(cmux->policy_data); tor_assert(cmux->policy->free_circ_data); /* Call free_circ_data() */ cmux->policy->free_circ_data(cmux, @@ -997,16 +997,14 @@ circuitmux_make_circuit_active(circuitmux_t *cmux, circuit_t *circ, /* Policy-specific notification */ if (cmux->policy && - cmux->policy->notify_circ_active && - cmux->policy_data) { + cmux->policy->notify_circ_active) { /* Okay, we need to check the circuit for policy data now */ hashent = circuitmux_find_map_entry(cmux, circ); /* We should have found something */ tor_assert(hashent); - /* Check for policy data for the circuit and notify */ - if (hashent->muxinfo.policy_data) - cmux->policy->notify_circ_active(cmux, cmux->policy_data, - circ, hashent->muxinfo.policy_data); + /* Notify */ + cmux->policy->notify_circ_active(cmux, cmux->policy_data, + circ, hashent->muxinfo.policy_data); } } @@ -1106,16 +1104,14 @@ circuitmux_make_circuit_inactive(circuitmux_t *cmux, circuit_t *circ, /* Policy-specific notification */ if (cmux->policy && - cmux->policy->notify_circ_inactive && - cmux->policy_data) { + cmux->policy->notify_circ_inactive) { /* Okay, we need to check the circuit for policy data now */ hashent = circuitmux_find_map_entry(cmux, circ); /* We should have found something */ tor_assert(hashent); - /* Check for policy data for the circuit and notify */ - if (hashent->muxinfo.policy_data) - cmux->policy->notify_circ_inactive(cmux, cmux->policy_data, - circ, hashent->muxinfo.policy_data); + /* Notify */ + cmux->policy->notify_circ_inactive(cmux, cmux->policy_data, + circ, hashent->muxinfo.policy_data); } } @@ -1153,11 +1149,8 @@ circuitmux_set_num_cells(circuitmux_t *cmux, circuit_t *circ, cmux->n_cells += n_cells; /* Do we need to notify a cmux policy? */ - if (cmux->policy && cmux->policy_data && - cmux->policy->notify_set_n_cells) { - /* Yeah; assert that we have circuit policy data */ - tor_assert(hashent->muxinfo.policy_data); - /* ... and call notify_set_n_cells */ + if (cmux->policy && cmux->policy->notify_set_n_cells) { + /* Call notify_set_n_cells */ cmux->policy->notify_set_n_cells(cmux, cmux->policy_data, circ,