Line data Source code
1 : #include "fd_cost_tracker.h"
2 : #include "fd_system_ids.h"
3 : #include "fd_bank.h"
4 : #include "../features/fd_features.h"
5 :
6 : struct account_cost {
7 : fd_pubkey_t account;
8 : ulong cost;
9 :
10 : struct {
11 : ulong next;
12 : } map;
13 : };
14 :
15 : typedef struct account_cost account_cost_t;
16 :
17 : #define MAP_NAME account_cost_map
18 : #define MAP_KEY_T fd_pubkey_t
19 : #define MAP_ELE_T account_cost_t
20 0 : #define MAP_KEY account
21 0 : #define MAP_KEY_EQ(k0,k1) (fd_pubkey_eq( k0, k1 ))
22 0 : #define MAP_KEY_HASH(key,seed) (fd_hash( seed, key, sizeof(fd_pubkey_t) ))
23 0 : #define MAP_NEXT map.next
24 : #include "../../util/tmpl/fd_map_chain.c"
25 :
26 : struct cost_tracker_outer {
27 : fd_cost_tracker_t cost_tracker[1];
28 : ulong pool_offset;
29 : ulong accounts_used;
30 : ulong magic;
31 : };
32 :
33 : typedef struct cost_tracker_outer cost_tracker_outer_t;
34 :
35 : FD_FN_CONST ulong
36 108 : fd_cost_tracker_align( void ) {
37 108 : return FD_COST_TRACKER_ALIGN;
38 108 : }
39 :
40 : FD_FN_CONST ulong
41 9 : fd_cost_tracker_footprint( void ) {
42 9 : ulong map_chain_cnt = account_cost_map_chain_cnt_est( FD_RUNTIME_MAX_WRITABLE_ACCOUNTS_PER_SLOT );
43 :
44 9 : ulong l = FD_LAYOUT_INIT;
45 9 : l = FD_LAYOUT_APPEND( l, fd_cost_tracker_align(), sizeof(cost_tracker_outer_t) );
46 9 : l = FD_LAYOUT_APPEND( l, account_cost_map_align(), account_cost_map_footprint( map_chain_cnt ) );
47 9 : l = FD_LAYOUT_APPEND( l, alignof(account_cost_t), FD_RUNTIME_MAX_WRITABLE_ACCOUNTS_PER_SLOT*sizeof(account_cost_t) );
48 9 : return FD_LAYOUT_FINI( l, fd_cost_tracker_align() );
49 9 : }
50 :
51 : void *
52 : fd_cost_tracker_new( void * shmem,
53 : int larger_max_cost_per_block,
54 18 : ulong seed ) {
55 18 : if( FD_UNLIKELY( !shmem ) ) {
56 3 : FD_LOG_WARNING(( "NULL shmem" ));
57 3 : return NULL;
58 3 : }
59 :
60 15 : if( FD_UNLIKELY( !fd_ulong_is_aligned( (ulong)shmem, fd_cost_tracker_align() ) ) ) {
61 0 : FD_LOG_WARNING(( "misaligned shmem" ));
62 0 : return NULL;
63 0 : }
64 :
65 15 : ulong map_chain_cnt = account_cost_map_chain_cnt_est( FD_RUNTIME_MAX_WRITABLE_ACCOUNTS_PER_SLOT );
66 :
67 15 : FD_SCRATCH_ALLOC_INIT( l, shmem );
68 15 : cost_tracker_outer_t * cost_tracker = FD_SCRATCH_ALLOC_APPEND( l, fd_cost_tracker_align(), sizeof(cost_tracker_outer_t) );
69 15 : void * _map = FD_SCRATCH_ALLOC_APPEND( l, account_cost_map_align(), account_cost_map_footprint( map_chain_cnt ) );
70 15 : void * _accounts = FD_SCRATCH_ALLOC_APPEND( l, alignof(account_cost_t), FD_RUNTIME_MAX_WRITABLE_ACCOUNTS_PER_SLOT*sizeof(account_cost_t) );
71 :
72 0 : account_cost_map_t * map = account_cost_map_join( account_cost_map_new( _map, map_chain_cnt, seed ) );
73 15 : FD_TEST( map );
74 :
75 15 : cost_tracker->pool_offset = (ulong)_accounts-(ulong)cost_tracker;
76 :
77 15 : cost_tracker->cost_tracker->larger_max_cost_per_block = larger_max_cost_per_block;
78 :
79 15 : (void)_accounts;
80 :
81 15 : FD_COMPILER_MFENCE();
82 15 : FD_VOLATILE( cost_tracker->magic ) = FD_COST_TRACKER_MAGIC;
83 15 : FD_COMPILER_MFENCE();
84 :
85 15 : return shmem;
86 15 : }
87 :
88 : fd_cost_tracker_t *
89 21 : fd_cost_tracker_join( void * shct ) {
90 21 : if( FD_UNLIKELY( !shct ) ) {
91 3 : FD_LOG_WARNING(( "NULL mem" ));
92 3 : return NULL;
93 3 : }
94 :
95 18 : if( FD_UNLIKELY( !fd_ulong_is_aligned( (ulong)shct, fd_cost_tracker_align() ) ) ) {
96 0 : FD_LOG_WARNING(( "misaligned mem" ));
97 0 : return NULL;
98 0 : }
99 :
100 18 : cost_tracker_outer_t * cost_tracker = (cost_tracker_outer_t *)shct;
101 :
102 18 : if( FD_UNLIKELY( cost_tracker->magic!=FD_COST_TRACKER_MAGIC ) ) {
103 3 : FD_LOG_WARNING(( "Invalid cost tracker magic" ));
104 3 : return NULL;
105 3 : }
106 :
107 15 : return cost_tracker->cost_tracker;
108 18 : }
109 :
110 : void
111 : fd_cost_tracker_init( fd_cost_tracker_t * cost_tracker,
112 : fd_features_t const * features,
113 0 : ulong slot ) {
114 0 : if( FD_FEATURE_ACTIVE( slot, features, raise_block_limits_to_100m ) ) {
115 0 : cost_tracker->block_cost_limit = FD_MAX_BLOCK_UNITS_SIMD_0286;
116 0 : cost_tracker->vote_cost_limit = FD_MAX_VOTE_UNITS;
117 0 : cost_tracker->account_cost_limit = FD_MAX_WRITABLE_ACCOUNT_UNITS;
118 0 : } else if( FD_FEATURE_ACTIVE( slot, features, raise_block_limits_to_60m ) ) {
119 0 : cost_tracker->block_cost_limit = FD_MAX_BLOCK_UNITS_SIMD_0256;
120 0 : cost_tracker->vote_cost_limit = FD_MAX_VOTE_UNITS;
121 0 : cost_tracker->account_cost_limit = FD_MAX_WRITABLE_ACCOUNT_UNITS;
122 0 : } else {
123 0 : cost_tracker->block_cost_limit = FD_MAX_BLOCK_UNITS_SIMD_0207;
124 0 : cost_tracker->vote_cost_limit = FD_MAX_VOTE_UNITS;
125 0 : cost_tracker->account_cost_limit = FD_MAX_WRITABLE_ACCOUNT_UNITS;
126 0 : }
127 :
128 0 : if( FD_UNLIKELY( cost_tracker->larger_max_cost_per_block ) ) cost_tracker->block_cost_limit = LARGER_MAX_COST_PER_BLOCK;
129 :
130 : /* https://github.com/anza-xyz/agave/blob/v3.0.1/runtime/src/bank.rs#L4059-L4066 */
131 0 : if( FD_FEATURE_ACTIVE( slot, features, raise_account_cu_limit ) ) {
132 0 : cost_tracker->account_cost_limit = fd_ulong_sat_mul( cost_tracker->block_cost_limit, 40UL ) / 100UL;
133 0 : }
134 :
135 0 : cost_tracker->block_cost = 0UL;
136 0 : cost_tracker->vote_cost = 0UL;
137 0 : cost_tracker->allocated_accounts_data_size = 0UL;
138 :
139 0 : cost_tracker_outer_t * outer = fd_type_pun( cost_tracker );
140 0 : outer->accounts_used = 0UL;
141 0 : account_cost_map_reset( fd_type_pun( outer+1UL ) );
142 0 : }
143 :
144 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L313-L321 */
145 : FD_FN_PURE static inline ulong
146 0 : get_instructions_data_cost( fd_exec_txn_ctx_t const * txn_ctx ) {
147 0 : ulong total_instr_data_sz = 0UL;
148 0 : for( ushort i=0; i<TXN( &txn_ctx->txn )->instr_cnt; i++ ) {
149 0 : total_instr_data_sz += TXN( &txn_ctx->txn )->instr[ i ].data_sz;
150 0 : }
151 0 : return total_instr_data_sz / FD_PACK_INV_COST_PER_INSTR_DATA_BYTE;
152 0 : }
153 :
154 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L152-L187 */
155 : FD_FN_PURE static inline ulong
156 0 : get_signature_cost( fd_exec_txn_ctx_t const * txn_ctx ) {
157 0 : fd_txn_t const * txn = TXN( &txn_ctx->txn );
158 0 : void const * payload = txn_ctx->txn.payload;
159 0 : fd_acct_addr_t const * accounts = fd_txn_get_acct_addrs( txn, payload );
160 :
161 : /* Compute signature counts (both normal + precompile)
162 : TODO: Factor this logic out into a shared function that can be used
163 : both here and in fd_pack_cost.h */
164 0 : ulong signature_cost = fd_ulong_sat_mul( txn->signature_cnt, FD_PACK_COST_PER_SIGNATURE );
165 0 : ulong num_secp256k1_instruction_signatures = 0UL;
166 0 : ulong num_ed25519_instruction_signatures = 0UL;
167 0 : ulong num_secp256r1_instruction_signatures = 0UL;
168 :
169 0 : for( ushort i=0; i<txn->instr_cnt; i++ ) {
170 0 : fd_txn_instr_t const * instr = &txn->instr[ i ];
171 0 : if( instr->data_sz==0UL ) continue;
172 :
173 0 : fd_acct_addr_t const * prog_id = accounts + instr->program_id;
174 0 : uchar const * instr_data = fd_txn_get_instr_data( instr, payload );
175 :
176 0 : if( fd_memeq( prog_id, fd_solana_ed25519_sig_verify_program_id.key, sizeof(fd_pubkey_t) ) ) {
177 0 : num_ed25519_instruction_signatures += (ulong)instr_data[ 0 ];
178 0 : } else if( fd_memeq( prog_id, fd_solana_keccak_secp_256k_program_id.key, sizeof(fd_pubkey_t) ) ) {
179 0 : num_secp256k1_instruction_signatures += (ulong)instr_data[ 0 ];
180 0 : } else if( fd_memeq( prog_id, fd_solana_secp256r1_program_id.key, sizeof(fd_pubkey_t) ) ) {
181 0 : num_secp256r1_instruction_signatures += (ulong)instr_data[ 0 ];
182 0 : }
183 0 : }
184 :
185 : /* No direct permalink, just factored out for readability */
186 0 : ulong secp256k1_verify_cost = fd_ulong_sat_mul( FD_PACK_COST_PER_SECP256K1_SIGNATURE, num_secp256k1_instruction_signatures );
187 :
188 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L155-L160 */
189 0 : ulong ed25519_verify_cost;
190 0 : if( FD_FEATURE_ACTIVE_BANK( txn_ctx->bank, ed25519_precompile_verify_strict ) ) {
191 0 : ed25519_verify_cost = fd_ulong_sat_mul( FD_PACK_COST_PER_ED25519_SIGNATURE, num_ed25519_instruction_signatures );
192 0 : } else {
193 0 : ed25519_verify_cost = fd_ulong_sat_mul( FD_PACK_COST_PER_NON_STRICT_ED25519_SIGNATURE, num_ed25519_instruction_signatures );
194 0 : }
195 :
196 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L162-L167 */
197 0 : ulong secp256r1_verify_cost = 0UL;
198 0 : if( FD_FEATURE_ACTIVE_BANK( txn_ctx->bank, enable_secp256r1_precompile ) ) {
199 0 : secp256r1_verify_cost = fd_ulong_sat_mul( FD_PACK_COST_PER_SECP256R1_SIGNATURE, num_secp256r1_instruction_signatures );
200 0 : }
201 :
202 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L169-L186 */
203 0 : return fd_ulong_sat_add( signature_cost,
204 0 : fd_ulong_sat_add( secp256k1_verify_cost,
205 0 : fd_ulong_sat_add( ed25519_verify_cost,
206 0 : secp256r1_verify_cost ) ) );
207 0 : }
208 :
209 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L190-L192 */
210 : FD_FN_PURE static inline ulong
211 0 : get_write_lock_cost( ulong num_write_locks ) {
212 0 : return fd_ulong_sat_mul( num_write_locks, FD_WRITE_LOCK_UNITS );
213 0 : }
214 :
215 : /* Loop through all instructions here and deserialize the instruction data to try to determine any
216 : system program allocations done.
217 :
218 : https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L367-L386 */
219 : static inline ulong
220 0 : calculate_allocated_accounts_data_size( fd_exec_txn_ctx_t const * txn_ctx ) {
221 0 : fd_txn_t const * txn = TXN( &txn_ctx->txn );
222 0 : void const * payload = txn_ctx->txn.payload;
223 :
224 0 : ulong allocated_accounts_data_size = 0UL;
225 0 : for( ushort i=0; i<txn->instr_cnt; i++ ) {
226 0 : fd_txn_instr_t const * instr = &txn->instr[ i ];
227 0 : fd_acct_addr_t const * accounts = fd_txn_get_acct_addrs( txn, payload );
228 0 : fd_acct_addr_t const * prog_id = accounts + instr->program_id;
229 0 : uchar const * instr_data = fd_txn_get_instr_data( instr, payload );
230 :
231 0 : if( instr->data_sz==0UL || !fd_memeq( prog_id, &fd_solana_system_program_id, sizeof(fd_pubkey_t) ) ) continue;
232 :
233 0 : fd_bincode_decode_ctx_t ctx = {
234 0 : .data = instr_data,
235 0 : .dataend = instr_data + instr->data_sz,
236 0 : };
237 :
238 0 : ulong total_sz = 0UL;
239 0 : int err = fd_system_program_instruction_decode_footprint( &ctx, &total_sz );
240 0 : if( FD_UNLIKELY( err ) ) continue;
241 :
242 0 : uchar buf[total_sz];
243 0 : fd_system_program_instruction_t * instruction = fd_system_program_instruction_decode( buf, &ctx );
244 0 : if( FD_UNLIKELY( !instruction ) ) continue;
245 :
246 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L330-L346 */
247 0 : ulong space = 0UL;
248 :
249 0 : switch( instruction->discriminant ) {
250 0 : case fd_system_program_instruction_enum_create_account: {
251 0 : space = instruction->inner.create_account.space;
252 0 : break;
253 0 : }
254 0 : case fd_system_program_instruction_enum_create_account_with_seed: {
255 0 : space = instruction->inner.create_account_with_seed.space;
256 0 : break;
257 0 : }
258 0 : case fd_system_program_instruction_enum_allocate: {
259 0 : space = instruction->inner.allocate;
260 0 : break;
261 0 : }
262 0 : case fd_system_program_instruction_enum_allocate_with_seed: {
263 0 : space = instruction->inner.allocate_with_seed.space;
264 0 : break;
265 0 : }
266 0 : }
267 :
268 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L373-L380 */
269 0 : if( FD_UNLIKELY( space>FD_RUNTIME_ACC_SZ_MAX ) ) return 0UL;
270 :
271 0 : allocated_accounts_data_size = fd_ulong_sat_add( allocated_accounts_data_size, space );
272 0 : }
273 :
274 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L396-L397 */
275 0 : return fd_ulong_min( 2UL*FD_RUNTIME_ACC_SZ_MAX, allocated_accounts_data_size );
276 0 : }
277 :
278 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L123-L149 */
279 : static inline fd_transaction_cost_t
280 : calculate_non_vote_transaction_cost( fd_exec_txn_ctx_t const * txn_ctx,
281 : ulong loaded_accounts_data_size_cost,
282 0 : ulong data_bytes_cost ) {
283 :
284 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L132 */
285 0 : ulong signature_cost = get_signature_cost( txn_ctx );
286 :
287 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L133 */
288 0 : ulong write_lock_cost = get_write_lock_cost( fd_txn_account_cnt( TXN( &txn_ctx->txn ), FD_TXN_ACCT_CAT_WRITABLE ) );
289 :
290 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L135-L136 */
291 0 : ulong allocated_accounts_data_size = calculate_allocated_accounts_data_size( txn_ctx );
292 :
293 0 : return (fd_transaction_cost_t){ .discriminant = fd_transaction_cost_enum_transaction,
294 0 : .inner = {
295 0 : .transaction = {
296 0 : .signature_cost = signature_cost,
297 0 : .write_lock_cost = write_lock_cost,
298 0 : .data_bytes_cost = data_bytes_cost,
299 0 : .programs_execution_cost = fd_ulong_sat_sub( txn_ctx->compute_budget_details.compute_unit_limit,
300 0 : txn_ctx->compute_budget_details.compute_meter ),
301 0 : .loaded_accounts_data_size_cost = loaded_accounts_data_size_cost,
302 0 : .allocated_accounts_data_size = allocated_accounts_data_size,
303 0 : }
304 0 : }
305 0 : };
306 0 : }
307 :
308 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/transaction_cost.rs#L26-L42 */
309 : FD_FN_PURE static inline ulong
310 0 : transaction_cost_sum( fd_transaction_cost_t const * txn_cost ) {
311 0 : switch( txn_cost->discriminant ) {
312 0 : case fd_transaction_cost_enum_simple_vote: {
313 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/transaction_cost.rs#L38 */
314 0 : return FD_PACK_SIMPLE_VOTE_COST;
315 0 : }
316 0 : case fd_transaction_cost_enum_transaction: {
317 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/transaction_cost.rs#L164-L171 */
318 0 : fd_usage_cost_details_t const * usage_cost = &txn_cost->inner.transaction;
319 0 : ulong cost = 0UL;
320 :
321 0 : cost = fd_ulong_sat_add( cost, usage_cost->signature_cost );
322 0 : cost = fd_ulong_sat_add( cost, usage_cost->write_lock_cost );
323 0 : cost = fd_ulong_sat_add( cost, usage_cost->data_bytes_cost );
324 0 : cost = fd_ulong_sat_add( cost, usage_cost->programs_execution_cost );
325 0 : cost = fd_ulong_sat_add( cost, usage_cost->loaded_accounts_data_size_cost );
326 :
327 0 : return cost;
328 0 : }
329 0 : default: {
330 0 : __builtin_unreachable();
331 0 : }
332 0 : }
333 0 : }
334 :
335 : FD_FN_PURE static inline ulong
336 0 : get_allocated_accounts_data_size( fd_transaction_cost_t const * txn_cost ) {
337 0 : switch( txn_cost->discriminant ) {
338 0 : case fd_transaction_cost_enum_simple_vote:
339 0 : return 0UL;
340 0 : case fd_transaction_cost_enum_transaction:
341 0 : return txn_cost->inner.transaction.allocated_accounts_data_size;
342 0 : default:
343 0 : __builtin_unreachable();
344 0 : }
345 0 : }
346 :
347 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L277-L322 */
348 : static inline int
349 : would_fit( fd_cost_tracker_t const * cost_tracker,
350 : fd_exec_txn_ctx_t const * txn_ctx,
351 0 : fd_transaction_cost_t const * tx_cost ) {
352 :
353 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L281 */
354 0 : ulong cost = transaction_cost_sum( tx_cost );
355 :
356 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L283-L288 */
357 0 : if( fd_transaction_cost_is_simple_vote( tx_cost ) ) {
358 0 : if( FD_UNLIKELY( fd_ulong_sat_add( cost_tracker->vote_cost, cost )>cost_tracker->vote_cost_limit ) ) {
359 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_VOTE_MAX_LIMIT;
360 0 : }
361 0 : }
362 :
363 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L290-L293 */
364 0 : if( FD_UNLIKELY( fd_ulong_sat_add( cost_tracker->block_cost, cost )>cost_tracker->block_cost_limit ) ) {
365 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_BLOCK_MAX_LIMIT;
366 0 : }
367 :
368 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L295-L298 */
369 0 : if( FD_UNLIKELY( cost>cost_tracker->account_cost_limit ) ) {
370 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_ACCOUNT_MAX_LIMIT;
371 0 : }
372 :
373 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L300-L301 */
374 0 : ulong allocated_accounts_data_size = fd_ulong_sat_add( cost_tracker->allocated_accounts_data_size,
375 0 : get_allocated_accounts_data_size( tx_cost ) );
376 :
377 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L303-L304 */
378 0 : if( FD_UNLIKELY( allocated_accounts_data_size>FD_MAX_BLOCK_ACCOUNTS_DATA_SIZE_DELTA ) ) {
379 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_ACCOUNT_DATA_BLOCK_LIMIT;
380 0 : }
381 :
382 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L308-L319 */
383 :
384 0 : account_cost_map_t const * map = fd_type_pun_const(((cost_tracker_outer_t const *)cost_tracker)+1UL);
385 0 : account_cost_t const * pool = fd_type_pun_const( (void*)((ulong)cost_tracker + ((cost_tracker_outer_t const *)cost_tracker)->pool_offset) );
386 :
387 0 : for( ulong i=0UL; i<txn_ctx->accounts_cnt; i++ ) {
388 0 : if( !fd_exec_txn_ctx_account_is_writable_idx( txn_ctx, (ushort)i ) ) continue;
389 :
390 0 : fd_pubkey_t const * writable_acc = &txn_ctx->account_keys[i];
391 :
392 0 : account_cost_t const * chained_cost = account_cost_map_ele_query_const( map, writable_acc, NULL, pool );
393 0 : if( FD_UNLIKELY( chained_cost && fd_ulong_sat_add( chained_cost->cost, cost )>cost_tracker->account_cost_limit ) ) {
394 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_ACCOUNT_MAX_LIMIT;
395 0 : }
396 0 : }
397 :
398 0 : return FD_COST_TRACKER_SUCCESS;
399 0 : }
400 :
401 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L352-L372 */
402 : static inline void
403 : add_transaction_execution_cost( fd_cost_tracker_t * _cost_tracker,
404 : fd_exec_txn_ctx_t const * txn_ctx,
405 : fd_transaction_cost_t const * tx_cost,
406 0 : ulong adjustment ) {
407 0 : cost_tracker_outer_t * cost_tracker = fd_type_pun( _cost_tracker );
408 0 : account_cost_map_t * map = fd_type_pun( cost_tracker+1UL );
409 0 : account_cost_t * pool = fd_type_pun( (void*)((ulong)cost_tracker+cost_tracker->pool_offset) );
410 :
411 0 : for( ulong i=0UL; i<txn_ctx->accounts_cnt; i++ ) {
412 0 : if( FD_LIKELY( !fd_exec_txn_ctx_account_is_writable_idx( txn_ctx, (ushort)i ) ) ) continue;
413 :
414 0 : fd_pubkey_t const * writable_acc = &txn_ctx->account_keys[i];
415 :
416 0 : account_cost_t * account_cost = account_cost_map_ele_query( map, writable_acc, NULL, pool );
417 0 : if( FD_UNLIKELY( !account_cost ) ) {
418 0 : FD_TEST( cost_tracker->accounts_used<FD_RUNTIME_MAX_WRITABLE_ACCOUNTS_PER_SLOT );
419 :
420 0 : account_cost = pool+cost_tracker->accounts_used;
421 0 : cost_tracker->accounts_used++;
422 :
423 0 : account_cost->account = *writable_acc;
424 0 : account_cost->cost = adjustment;
425 :
426 0 : account_cost_map_ele_insert( map, account_cost, pool );
427 0 : } else {
428 0 : account_cost->cost = fd_ulong_sat_add( account_cost->cost, adjustment );
429 0 : }
430 0 : }
431 :
432 0 : cost_tracker->cost_tracker->block_cost = fd_ulong_sat_add( cost_tracker->cost_tracker->block_cost, adjustment );
433 0 : if( FD_UNLIKELY( fd_transaction_cost_is_simple_vote( tx_cost ) ) ) {
434 0 : cost_tracker->cost_tracker->vote_cost = fd_ulong_sat_add( cost_tracker->cost_tracker->vote_cost, adjustment );
435 0 : }
436 0 : }
437 :
438 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L325-L335 */
439 : static inline void
440 : add_transaction_cost( fd_cost_tracker_t * cost_tracker,
441 : fd_exec_txn_ctx_t const * txn_ctx,
442 0 : fd_transaction_cost_t const * tx_cost ) {
443 : /* Note: We purposely omit signature counts updates since they're not relevant to cost calculations right now. */
444 0 : cost_tracker->allocated_accounts_data_size += get_allocated_accounts_data_size( tx_cost );
445 0 : add_transaction_execution_cost( cost_tracker, txn_ctx, tx_cost, transaction_cost_sum( tx_cost ) );
446 0 : }
447 :
448 : int
449 : fd_cost_tracker_calculate_cost_and_add( fd_cost_tracker_t * cost_tracker,
450 0 : fd_exec_txn_ctx_t const * txn_ctx ) {
451 0 : if( FD_UNLIKELY( !txn_ctx ) ) {
452 0 : return FD_COST_TRACKER_SUCCESS;
453 0 : }
454 :
455 : /* https://github.com/anza-xyz/agave/blob/v2.1.0/cost-model/src/cost_model.rs#L83-L85 */
456 0 : fd_transaction_cost_t txn_cost;
457 0 : if( fd_txn_is_simple_vote_transaction( TXN( &txn_ctx->txn ), txn_ctx->txn.payload ) ) {
458 0 : txn_cost = (fd_transaction_cost_t){ .discriminant = fd_transaction_cost_enum_simple_vote };
459 0 : } else {
460 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L78-L81 */
461 0 : ulong loaded_accounts_data_size_cost = fd_cost_tracker_calculate_loaded_accounts_data_size_cost( txn_ctx );
462 :
463 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L82-L83 */
464 0 : ulong instructions_data_cost = get_instructions_data_cost( txn_ctx );
465 :
466 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L85-L93 */
467 0 : txn_cost = calculate_non_vote_transaction_cost( txn_ctx, loaded_accounts_data_size_cost, instructions_data_cost );
468 0 : }
469 :
470 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L167 */
471 0 : int err = would_fit( cost_tracker, txn_ctx, &txn_cost );
472 0 : if( FD_UNLIKELY( err ) ) return err;
473 :
474 : /* We don't need `updated_costliest_account_cost` since it seems to be
475 : for a different use case other than validating block cost limits.
476 : https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L168 */
477 0 : add_transaction_cost( cost_tracker, txn_ctx, &txn_cost );
478 0 : return FD_COST_TRACKER_SUCCESS;
479 0 : }
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