Line data Source code
1 : #include "fd_cost_tracker.h"
2 : #include "fd_system_ids.h"
3 : #include "fd_bank.h"
4 : #include "fd_runtime.h"
5 : #include "../features/fd_features.h"
6 : #include "../vm/fd_vm_base.h"
7 :
8 : struct account_cost {
9 : fd_pubkey_t account;
10 : ulong cost;
11 :
12 : struct {
13 : ulong next;
14 : } map;
15 : };
16 :
17 : typedef struct account_cost account_cost_t;
18 :
19 : #define MAP_NAME account_cost_map
20 : #define MAP_KEY_T fd_pubkey_t
21 : #define MAP_ELE_T account_cost_t
22 6 : #define MAP_KEY account
23 54 : #define MAP_KEY_EQ(k0,k1) (fd_pubkey_eq( k0, k1 ))
24 72 : #define MAP_KEY_HASH(key,seed) (fd_hash( seed, key, sizeof(fd_pubkey_t) ))
25 6 : #define MAP_NEXT map.next
26 : #include "../../util/tmpl/fd_map_chain.c"
27 :
28 : struct cost_tracker_outer {
29 : fd_cost_tracker_t cost_tracker[1];
30 : ulong pool_offset;
31 : ulong accounts_used;
32 : ulong magic;
33 : };
34 :
35 : typedef struct cost_tracker_outer cost_tracker_outer_t;
36 :
37 : FD_FN_CONST ulong
38 1263 : fd_cost_tracker_align( void ) {
39 1263 : return FD_COST_TRACKER_ALIGN;
40 1263 : }
41 :
42 : FD_FN_CONST ulong
43 9 : fd_cost_tracker_footprint( void ) {
44 9 : ulong map_chain_cnt = account_cost_map_chain_cnt_est( FD_RUNTIME_MAX_WRITABLE_ACCOUNTS_PER_SLOT );
45 :
46 9 : ulong l = FD_LAYOUT_INIT;
47 9 : l = FD_LAYOUT_APPEND( l, fd_cost_tracker_align(), sizeof(cost_tracker_outer_t) );
48 9 : l = FD_LAYOUT_APPEND( l, account_cost_map_align(), account_cost_map_footprint( map_chain_cnt ) );
49 9 : l = FD_LAYOUT_APPEND( l, alignof(account_cost_t), FD_RUNTIME_MAX_WRITABLE_ACCOUNTS_PER_SLOT*sizeof(account_cost_t) );
50 9 : return FD_LAYOUT_FINI( l, fd_cost_tracker_align() );
51 9 : }
52 :
53 : void *
54 : fd_cost_tracker_new( void * shmem,
55 : int larger_max_cost_per_block,
56 408 : ulong seed ) {
57 408 : if( FD_UNLIKELY( !shmem ) ) {
58 3 : FD_LOG_WARNING(( "NULL shmem" ));
59 3 : return NULL;
60 3 : }
61 :
62 405 : if( FD_UNLIKELY( !fd_ulong_is_aligned( (ulong)shmem, fd_cost_tracker_align() ) ) ) {
63 0 : FD_LOG_WARNING(( "misaligned shmem" ));
64 0 : return NULL;
65 0 : }
66 :
67 405 : ulong map_chain_cnt = account_cost_map_chain_cnt_est( FD_RUNTIME_MAX_WRITABLE_ACCOUNTS_PER_SLOT );
68 :
69 405 : FD_SCRATCH_ALLOC_INIT( l, shmem );
70 405 : cost_tracker_outer_t * cost_tracker = FD_SCRATCH_ALLOC_APPEND( l, fd_cost_tracker_align(), sizeof(cost_tracker_outer_t) );
71 405 : void * _map = FD_SCRATCH_ALLOC_APPEND( l, account_cost_map_align(), account_cost_map_footprint( map_chain_cnt ) );
72 405 : void * _accounts = FD_SCRATCH_ALLOC_APPEND( l, alignof(account_cost_t), FD_RUNTIME_MAX_WRITABLE_ACCOUNTS_PER_SLOT*sizeof(account_cost_t) );
73 :
74 0 : account_cost_map_t * map = account_cost_map_join( account_cost_map_new( _map, map_chain_cnt, seed ) );
75 405 : FD_TEST( map );
76 :
77 405 : cost_tracker->pool_offset = (ulong)_accounts-(ulong)cost_tracker;
78 :
79 405 : cost_tracker->cost_tracker->larger_max_cost_per_block = larger_max_cost_per_block;
80 :
81 405 : (void)_accounts;
82 :
83 405 : FD_COMPILER_MFENCE();
84 405 : FD_VOLATILE( cost_tracker->magic ) = FD_COST_TRACKER_MAGIC;
85 405 : FD_COMPILER_MFENCE();
86 :
87 405 : return shmem;
88 405 : }
89 :
90 : fd_cost_tracker_t *
91 411 : fd_cost_tracker_join( void * shct ) {
92 411 : if( FD_UNLIKELY( !shct ) ) {
93 3 : FD_LOG_WARNING(( "NULL mem" ));
94 3 : return NULL;
95 3 : }
96 :
97 408 : if( FD_UNLIKELY( !fd_ulong_is_aligned( (ulong)shct, fd_cost_tracker_align() ) ) ) {
98 0 : FD_LOG_WARNING(( "misaligned mem" ));
99 0 : return NULL;
100 0 : }
101 :
102 408 : cost_tracker_outer_t * cost_tracker = (cost_tracker_outer_t *)shct;
103 :
104 408 : if( FD_UNLIKELY( cost_tracker->magic!=FD_COST_TRACKER_MAGIC ) ) {
105 3 : FD_LOG_WARNING(( "Invalid cost tracker magic" ));
106 3 : return NULL;
107 3 : }
108 :
109 405 : return cost_tracker->cost_tracker;
110 408 : }
111 :
112 : void
113 : fd_cost_tracker_init( fd_cost_tracker_t * cost_tracker,
114 : fd_features_t const * features,
115 63 : ulong slot ) {
116 63 : if( FD_FEATURE_ACTIVE( slot, features, raise_block_limits_to_100m ) ) {
117 27 : cost_tracker->block_cost_limit = FD_MAX_BLOCK_UNITS_SIMD_0286;
118 27 : cost_tracker->vote_cost_limit = FD_MAX_VOTE_UNITS;
119 27 : cost_tracker->account_cost_limit = FD_MAX_WRITABLE_ACCOUNT_UNITS;
120 36 : } else if( FD_FEATURE_ACTIVE( slot, features, raise_block_limits_to_60m ) ) {
121 0 : cost_tracker->block_cost_limit = FD_MAX_BLOCK_UNITS_SIMD_0256;
122 0 : cost_tracker->vote_cost_limit = FD_MAX_VOTE_UNITS;
123 0 : cost_tracker->account_cost_limit = FD_MAX_WRITABLE_ACCOUNT_UNITS;
124 36 : } else {
125 36 : cost_tracker->block_cost_limit = FD_MAX_BLOCK_UNITS_SIMD_0207;
126 36 : cost_tracker->vote_cost_limit = FD_MAX_VOTE_UNITS;
127 36 : cost_tracker->account_cost_limit = FD_MAX_WRITABLE_ACCOUNT_UNITS;
128 36 : }
129 :
130 63 : if( FD_UNLIKELY( cost_tracker->larger_max_cost_per_block ) ) cost_tracker->block_cost_limit = LARGER_MAX_COST_PER_BLOCK;
131 :
132 : /* https://github.com/anza-xyz/agave/blob/v3.0.1/runtime/src/bank.rs#L4059-L4066 */
133 63 : if( FD_FEATURE_ACTIVE( slot, features, raise_account_cu_limit ) ) {
134 27 : cost_tracker->account_cost_limit = fd_ulong_sat_mul( cost_tracker->block_cost_limit, 40UL ) / 100UL;
135 27 : }
136 :
137 63 : cost_tracker->block_cost = 0UL;
138 63 : cost_tracker->vote_cost = 0UL;
139 63 : cost_tracker->allocated_accounts_data_size = 0UL;
140 :
141 63 : cost_tracker_outer_t * outer = fd_type_pun( cost_tracker );
142 63 : outer->accounts_used = 0UL;
143 63 : account_cost_map_reset( fd_type_pun( outer+1UL ) );
144 63 : }
145 :
146 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L313-L321 */
147 : FD_FN_PURE static inline ulong
148 81 : get_instructions_data_cost( fd_txn_in_t const * txn_in ) {
149 81 : ulong total_instr_data_sz = 0UL;
150 144 : for( ushort i=0; i<TXN( txn_in->txn )->instr_cnt; i++ ) {
151 63 : total_instr_data_sz += TXN( txn_in->txn )->instr[ i ].data_sz;
152 63 : }
153 81 : return total_instr_data_sz / FD_PACK_INV_COST_PER_INSTR_DATA_BYTE;
154 81 : }
155 :
156 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L152-L187 */
157 : FD_FN_PURE static inline ulong
158 81 : get_signature_cost( fd_txn_in_t const * txn_in, fd_bank_t * bank ) {
159 81 : fd_txn_t const * txn = TXN( txn_in->txn );
160 81 : void const * payload = txn_in->txn->payload;
161 81 : fd_acct_addr_t const * accounts = fd_txn_get_acct_addrs( txn, payload );
162 :
163 : /* Compute signature counts (both normal + precompile)
164 : TODO: Factor this logic out into a shared function that can be used
165 : both here and in fd_pack_cost.h */
166 81 : ulong signature_cost = fd_ulong_sat_mul( txn->signature_cnt, FD_PACK_COST_PER_SIGNATURE );
167 81 : ulong num_secp256k1_instruction_signatures = 0UL;
168 81 : ulong num_ed25519_instruction_signatures = 0UL;
169 81 : ulong num_secp256r1_instruction_signatures = 0UL;
170 :
171 144 : for( ushort i=0; i<txn->instr_cnt; i++ ) {
172 63 : fd_txn_instr_t const * instr = &txn->instr[ i ];
173 63 : if( instr->data_sz==0UL ) continue;
174 :
175 63 : fd_acct_addr_t const * prog_id = accounts + instr->program_id;
176 63 : uchar const * instr_data = fd_txn_get_instr_data( instr, payload );
177 :
178 63 : if( fd_memeq( prog_id, fd_solana_ed25519_sig_verify_program_id.key, sizeof(fd_pubkey_t) ) ) {
179 0 : num_ed25519_instruction_signatures += (ulong)instr_data[ 0 ];
180 63 : } else if( fd_memeq( prog_id, fd_solana_keccak_secp_256k_program_id.key, sizeof(fd_pubkey_t) ) ) {
181 0 : num_secp256k1_instruction_signatures += (ulong)instr_data[ 0 ];
182 63 : } else if( fd_memeq( prog_id, fd_solana_secp256r1_program_id.key, sizeof(fd_pubkey_t) ) ) {
183 0 : num_secp256r1_instruction_signatures += (ulong)instr_data[ 0 ];
184 0 : }
185 63 : }
186 :
187 : /* No direct permalink, just factored out for readability */
188 81 : ulong secp256k1_verify_cost = fd_ulong_sat_mul( FD_PACK_COST_PER_SECP256K1_SIGNATURE, num_secp256k1_instruction_signatures );
189 :
190 : /* https://github.com/anza-xyz/agave/blob/master/cost-model/src/cost_model.rs#L151 */
191 81 : ulong ed25519_verify_cost = fd_ulong_sat_mul( FD_PACK_COST_PER_ED25519_SIGNATURE, num_ed25519_instruction_signatures );
192 :
193 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L162-L167 */
194 81 : ulong secp256r1_verify_cost = 0UL;
195 81 : if( FD_FEATURE_ACTIVE_BANK( bank, enable_secp256r1_precompile ) ) {
196 18 : secp256r1_verify_cost = fd_ulong_sat_mul( FD_PACK_COST_PER_SECP256R1_SIGNATURE, num_secp256r1_instruction_signatures );
197 18 : }
198 :
199 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L169-L186 */
200 81 : return fd_ulong_sat_add( signature_cost,
201 81 : fd_ulong_sat_add( secp256k1_verify_cost,
202 81 : fd_ulong_sat_add( ed25519_verify_cost,
203 81 : secp256r1_verify_cost ) ) );
204 81 : }
205 :
206 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L190-L192 */
207 : FD_FN_PURE static inline ulong
208 81 : get_write_lock_cost( ulong num_write_locks ) {
209 81 : return fd_ulong_sat_mul( num_write_locks, FD_WRITE_LOCK_UNITS );
210 81 : }
211 :
212 : /* Loop through all instructions here and deserialize the instruction data to try to determine any
213 : system program allocations done.
214 :
215 : https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L367-L386 */
216 : static inline ulong
217 81 : calculate_allocated_accounts_data_size( fd_txn_in_t const * txn_in ) {
218 81 : fd_txn_t const * txn = TXN( txn_in->txn );
219 81 : void const * payload = txn_in->txn->payload;
220 :
221 81 : ulong allocated_accounts_data_size = 0UL;
222 138 : for( ushort i=0; i<txn->instr_cnt; i++ ) {
223 60 : fd_txn_instr_t const * instr = &txn->instr[ i ];
224 60 : fd_acct_addr_t const * accounts = fd_txn_get_acct_addrs( txn, payload );
225 60 : fd_acct_addr_t const * prog_id = accounts + instr->program_id;
226 60 : uchar const * instr_data = fd_txn_get_instr_data( instr, payload );
227 :
228 60 : if( instr->data_sz==0UL || !fd_memeq( prog_id, &fd_solana_system_program_id, sizeof(fd_pubkey_t) ) ) continue;
229 :
230 24 : fd_bincode_decode_ctx_t ctx = {
231 24 : .data = instr_data,
232 24 : .dataend = instr_data + instr->data_sz,
233 24 : };
234 :
235 24 : ulong total_sz = 0UL;
236 24 : int err = fd_system_program_instruction_decode_footprint( &ctx, &total_sz );
237 24 : if( FD_UNLIKELY( err ) ) continue;
238 :
239 24 : uchar buf[total_sz];
240 24 : fd_system_program_instruction_t * instruction = fd_system_program_instruction_decode( buf, &ctx );
241 24 : if( FD_UNLIKELY( !instruction ) ) continue;
242 :
243 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L330-L346 */
244 24 : ulong space = 0UL;
245 :
246 24 : switch( instruction->discriminant ) {
247 0 : case fd_system_program_instruction_enum_create_account: {
248 0 : space = instruction->inner.create_account.space;
249 0 : break;
250 0 : }
251 0 : case fd_system_program_instruction_enum_create_account_with_seed: {
252 0 : space = instruction->inner.create_account_with_seed.space;
253 0 : break;
254 0 : }
255 24 : case fd_system_program_instruction_enum_allocate: {
256 24 : space = instruction->inner.allocate;
257 24 : break;
258 0 : }
259 0 : case fd_system_program_instruction_enum_allocate_with_seed: {
260 0 : space = instruction->inner.allocate_with_seed.space;
261 0 : break;
262 0 : }
263 24 : }
264 :
265 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L373-L380 */
266 24 : if( FD_UNLIKELY( space>FD_RUNTIME_ACC_SZ_MAX ) ) return 0UL;
267 :
268 21 : allocated_accounts_data_size = fd_ulong_sat_add( allocated_accounts_data_size, space );
269 21 : }
270 :
271 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L396-L397 */
272 78 : return fd_ulong_min( 2UL*FD_RUNTIME_ACC_SZ_MAX, allocated_accounts_data_size );
273 81 : }
274 :
275 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L123-L149 */
276 : static inline fd_transaction_cost_t
277 : calculate_non_vote_transaction_cost( fd_bank_t * bank,
278 : fd_txn_in_t const * txn_in,
279 : fd_txn_out_t const * txn_out,
280 : ulong loaded_accounts_data_size_cost,
281 81 : ulong data_bytes_cost ) {
282 :
283 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L132 */
284 81 : ulong signature_cost = get_signature_cost( txn_in, bank );
285 :
286 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L133 */
287 81 : ulong write_lock_cost = get_write_lock_cost( fd_txn_account_cnt( TXN( txn_in->txn ), FD_TXN_ACCT_CAT_WRITABLE ) );
288 :
289 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L135-L136 */
290 81 : ulong allocated_accounts_data_size = calculate_allocated_accounts_data_size( txn_in );
291 :
292 81 : return (fd_transaction_cost_t) {
293 81 : .type = FD_TXN_COST_TYPE_TRANSACTION,
294 81 : .transaction = {
295 81 : .signature_cost = signature_cost,
296 81 : .write_lock_cost = write_lock_cost,
297 81 : .data_bytes_cost = data_bytes_cost,
298 81 : .programs_execution_cost = fd_ulong_sat_sub( txn_out->details.compute_budget.compute_unit_limit,
299 81 : txn_out->details.compute_budget.compute_meter ),
300 81 : .loaded_accounts_data_size_cost = loaded_accounts_data_size_cost,
301 81 : .allocated_accounts_data_size = allocated_accounts_data_size,
302 81 : }
303 81 : };
304 81 : }
305 :
306 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/transaction_cost.rs#L26-L42 */
307 : FD_FN_PURE static inline ulong
308 36 : transaction_cost_sum( fd_transaction_cost_t const * txn_cost ) {
309 36 : switch( txn_cost->type ) {
310 0 : case FD_TXN_COST_TYPE_SIMPLE_VOTE: {
311 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/transaction_cost.rs#L38 */
312 0 : return FD_PACK_SIMPLE_VOTE_COST;
313 0 : }
314 36 : case FD_TXN_COST_TYPE_TRANSACTION: {
315 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/transaction_cost.rs#L164-L171 */
316 36 : fd_usage_cost_details_t const * usage_cost = &txn_cost->transaction;
317 36 : ulong cost = 0UL;
318 :
319 36 : cost = fd_ulong_sat_add( cost, usage_cost->signature_cost );
320 36 : cost = fd_ulong_sat_add( cost, usage_cost->write_lock_cost );
321 36 : cost = fd_ulong_sat_add( cost, usage_cost->data_bytes_cost );
322 36 : cost = fd_ulong_sat_add( cost, usage_cost->programs_execution_cost );
323 36 : cost = fd_ulong_sat_add( cost, usage_cost->loaded_accounts_data_size_cost );
324 :
325 36 : return cost;
326 0 : }
327 0 : default: {
328 0 : __builtin_unreachable();
329 0 : }
330 36 : }
331 36 : }
332 :
333 : FD_FN_PURE static inline ulong
334 36 : get_allocated_accounts_data_size( fd_transaction_cost_t const * txn_cost ) {
335 36 : switch( txn_cost->type ) {
336 0 : case FD_TXN_COST_TYPE_SIMPLE_VOTE:
337 0 : return 0UL;
338 36 : case FD_TXN_COST_TYPE_TRANSACTION:
339 36 : return txn_cost->transaction.allocated_accounts_data_size;
340 0 : default:
341 0 : __builtin_unreachable();
342 36 : }
343 36 : }
344 :
345 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L277-L322 */
346 : static inline int
347 : would_fit( fd_cost_tracker_t const * cost_tracker,
348 : fd_txn_out_t * txn_out,
349 18 : fd_transaction_cost_t const * tx_cost ) {
350 :
351 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L281 */
352 18 : ulong cost = transaction_cost_sum( tx_cost );
353 :
354 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L283-L288 */
355 18 : if( tx_cost->type==FD_TXN_COST_TYPE_SIMPLE_VOTE ) {
356 0 : if( FD_UNLIKELY( fd_ulong_sat_add( cost_tracker->vote_cost, cost )>cost_tracker->vote_cost_limit ) ) {
357 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_VOTE_MAX_LIMIT;
358 0 : }
359 0 : }
360 :
361 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L290-L293 */
362 18 : if( FD_UNLIKELY( fd_ulong_sat_add( cost_tracker->block_cost, cost )>cost_tracker->block_cost_limit ) ) {
363 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_BLOCK_MAX_LIMIT;
364 0 : }
365 :
366 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L295-L298 */
367 18 : if( FD_UNLIKELY( cost>cost_tracker->account_cost_limit ) ) {
368 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_ACCOUNT_MAX_LIMIT;
369 0 : }
370 :
371 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L300-L301 */
372 18 : ulong allocated_accounts_data_size = fd_ulong_sat_add( cost_tracker->allocated_accounts_data_size,
373 18 : get_allocated_accounts_data_size( tx_cost ) );
374 :
375 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L303-L304 */
376 18 : if( FD_UNLIKELY( allocated_accounts_data_size>FD_MAX_BLOCK_ACCOUNTS_DATA_SIZE_DELTA ) ) {
377 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_ACCOUNT_DATA_BLOCK_LIMIT;
378 0 : }
379 :
380 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L308-L319 */
381 :
382 18 : account_cost_map_t const * map = fd_type_pun_const(((cost_tracker_outer_t const *)cost_tracker)+1UL);
383 18 : account_cost_t const * pool = fd_type_pun_const( (void*)((ulong)cost_tracker + ((cost_tracker_outer_t const *)cost_tracker)->pool_offset) );
384 :
385 54 : for( ulong i=0UL; i<txn_out->accounts.cnt; i++ ) {
386 36 : if( txn_out->accounts.is_writable[i]==0 ) continue;
387 :
388 33 : fd_pubkey_t const * writable_acc = &txn_out->accounts.keys[i];
389 :
390 33 : account_cost_t const * chained_cost = account_cost_map_ele_query_const( map, writable_acc, NULL, pool );
391 33 : if( FD_UNLIKELY( chained_cost && fd_ulong_sat_add( chained_cost->cost, cost )>cost_tracker->account_cost_limit ) ) {
392 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_ACCOUNT_MAX_LIMIT;
393 0 : }
394 33 : }
395 :
396 18 : return FD_COST_TRACKER_SUCCESS;
397 18 : }
398 :
399 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L352-L372 */
400 : static inline void
401 : add_transaction_execution_cost( fd_cost_tracker_t * _cost_tracker,
402 : fd_txn_out_t * txn_out,
403 : fd_transaction_cost_t const * tx_cost,
404 18 : ulong adjustment ) {
405 18 : cost_tracker_outer_t * cost_tracker = fd_type_pun( _cost_tracker );
406 18 : account_cost_map_t * map = fd_type_pun( cost_tracker+1UL );
407 18 : account_cost_t * pool = fd_type_pun( (void*)((ulong)cost_tracker+cost_tracker->pool_offset) );
408 :
409 54 : for( ulong i=0UL; i<txn_out->accounts.cnt; i++ ) {
410 36 : if( FD_LIKELY( txn_out->accounts.is_writable[i]==0 ) ) continue;
411 :
412 33 : fd_pubkey_t const * writable_acc = &txn_out->accounts.keys[i];
413 :
414 33 : account_cost_t * account_cost = account_cost_map_ele_query( map, writable_acc, NULL, pool );
415 33 : if( FD_UNLIKELY( !account_cost ) ) {
416 6 : FD_TEST( cost_tracker->accounts_used<FD_RUNTIME_MAX_WRITABLE_ACCOUNTS_PER_SLOT );
417 :
418 6 : account_cost = pool+cost_tracker->accounts_used;
419 6 : cost_tracker->accounts_used++;
420 :
421 6 : account_cost->account = *writable_acc;
422 6 : account_cost->cost = adjustment;
423 :
424 6 : account_cost_map_ele_insert( map, account_cost, pool );
425 27 : } else {
426 27 : account_cost->cost = fd_ulong_sat_add( account_cost->cost, adjustment );
427 27 : }
428 33 : }
429 :
430 18 : cost_tracker->cost_tracker->block_cost = fd_ulong_sat_add( cost_tracker->cost_tracker->block_cost, adjustment );
431 18 : if( FD_UNLIKELY( tx_cost->type==FD_TXN_COST_TYPE_SIMPLE_VOTE ) ) {
432 0 : cost_tracker->cost_tracker->vote_cost = fd_ulong_sat_add( cost_tracker->cost_tracker->vote_cost, adjustment );
433 0 : }
434 18 : }
435 :
436 :
437 :
438 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L323-L328 */
439 : FD_FN_PURE ulong
440 81 : fd_cost_tracker_calculate_loaded_accounts_data_size_cost( fd_txn_out_t const * txn_out ) {
441 81 : ulong cost = fd_ulong_sat_sub( fd_ulong_sat_add( txn_out->details.loaded_accounts_data_size,
442 81 : FD_ACCOUNT_DATA_COST_PAGE_SIZE ),
443 81 : 1UL );
444 81 : cost /= FD_ACCOUNT_DATA_COST_PAGE_SIZE;
445 81 : return fd_ulong_sat_mul( cost, FD_VM_HEAP_COST );
446 81 : }
447 :
448 : void
449 : fd_cost_tracker_calculate_cost( fd_bank_t * bank,
450 : fd_txn_in_t const * txn_in,
451 81 : fd_txn_out_t * txn_out ) {
452 : /* https://github.com/anza-xyz/agave/blob/v2.1.0/cost-model/src/cost_model.rs#L83-L85 */
453 81 : fd_transaction_cost_t * txn_cost = &txn_out->details.txn_cost;
454 81 : if( txn_out->details.is_simple_vote ) {
455 0 : txn_cost->type = FD_TXN_COST_TYPE_SIMPLE_VOTE;
456 81 : } else {
457 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L78-L81 */
458 81 : ulong loaded_accounts_data_size_cost = fd_cost_tracker_calculate_loaded_accounts_data_size_cost( txn_out );
459 :
460 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L82-L83 */
461 81 : ulong instructions_data_cost = get_instructions_data_cost( txn_in );
462 :
463 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L85-L93 */
464 81 : *txn_cost = calculate_non_vote_transaction_cost( bank, txn_in, txn_out, loaded_accounts_data_size_cost, instructions_data_cost );
465 81 : }
466 81 : }
467 :
468 : int
469 : fd_cost_tracker_try_add_cost( fd_cost_tracker_t * cost_tracker,
470 18 : fd_txn_out_t * txn_out ) {
471 :
472 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L167 */
473 18 : int err = would_fit( cost_tracker, txn_out, &txn_out->details.txn_cost );
474 18 : if( FD_UNLIKELY( err!=FD_COST_TRACKER_SUCCESS ) ) {
475 0 : return err;
476 0 : }
477 :
478 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L325-L335 */
479 :
480 : /* We don't need `updated_costliest_account_cost` since it seems to be
481 : for a different use case other than validating block cost limits.
482 : https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L168 */
483 :
484 : /* Note: We purposely omit signature counts updates since they're not relevant to cost calculations right now. */
485 18 : cost_tracker->allocated_accounts_data_size += get_allocated_accounts_data_size( &txn_out->details.txn_cost );
486 18 : add_transaction_execution_cost( cost_tracker, txn_out, &txn_out->details.txn_cost, transaction_cost_sum( &txn_out->details.txn_cost ) );
487 18 : return FD_COST_TRACKER_SUCCESS;
488 18 : }
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