902 collect(int generation, Py_ssize_t *n_collected, Py_ssize_t *n_uncollectable,  in collect()  argument
915     struct gc_generation_stats *stats = &generation_stats[generation];  in collect()
919                           generation);  in collect()
930         PyDTrace_GC_START(generation);  in collect()
933     if (generation+1 < NUM_GENERATIONS)  in collect()
934         generations[generation+1].count += 1;  in collect()
935     for (i = 0; i <= generation; i++)  in collect()
939     for (i = 0; i < generation; i++) {  in collect()
940         gc_list_merge(GEN_HEAD(i), GEN_HEAD(generation));  in collect()
944     young = GEN_HEAD(generation);  in collect()
945     if (generation < NUM_GENERATIONS-1)  in collect()
946         old = GEN_HEAD(generation+1);  in collect()
969         if (generation == NUM_GENERATIONS - 2) {  in collect()
1052     if (generation == NUM_GENERATIONS-1) {  in collect()
1087 invoke_gc_callback(const char *phase, int generation,  in invoke_gc_callback()  argument
1100             "generation", generation,  in invoke_gc_callback()
1124 collect_with_callback(int generation)  in collect_with_callback()  argument
1127     invoke_gc_callback("start", generation, 0, 0);  in collect_with_callback()
1128     result = collect(generation, &collected, &uncollectable, 0);  in collect_with_callback()
1129     invoke_gc_callback("stop", generation, collected, uncollectable);  in collect_with_callback()