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 18 : ulong seed ) {
54 18 : if( FD_UNLIKELY( !shmem ) ) {
55 3 : FD_LOG_WARNING(( "NULL shmem" ));
56 3 : return NULL;
57 3 : }
58 :
59 15 : if( FD_UNLIKELY( !fd_ulong_is_aligned( (ulong)shmem, fd_cost_tracker_align() ) ) ) {
60 0 : FD_LOG_WARNING(( "misaligned shmem" ));
61 0 : return NULL;
62 0 : }
63 :
64 15 : ulong map_chain_cnt = account_cost_map_chain_cnt_est( FD_RUNTIME_MAX_WRITABLE_ACCOUNTS_PER_SLOT );
65 :
66 15 : FD_SCRATCH_ALLOC_INIT( l, shmem );
67 15 : cost_tracker_outer_t * cost_tracker = FD_SCRATCH_ALLOC_APPEND( l, fd_cost_tracker_align(), sizeof(cost_tracker_outer_t) );
68 15 : void * _map = FD_SCRATCH_ALLOC_APPEND( l, account_cost_map_align(), account_cost_map_footprint( map_chain_cnt ) );
69 15 : void * _accounts = FD_SCRATCH_ALLOC_APPEND( l, alignof(account_cost_t), FD_RUNTIME_MAX_WRITABLE_ACCOUNTS_PER_SLOT*sizeof(account_cost_t) );
70 :
71 0 : account_cost_map_t * map = account_cost_map_join( account_cost_map_new( _map, map_chain_cnt, seed ) );
72 15 : FD_TEST( map );
73 :
74 15 : cost_tracker->pool_offset = (ulong)_accounts-(ulong)cost_tracker;
75 :
76 15 : (void)_accounts;
77 :
78 15 : FD_COMPILER_MFENCE();
79 15 : FD_VOLATILE( cost_tracker->magic ) = FD_COST_TRACKER_MAGIC;
80 15 : FD_COMPILER_MFENCE();
81 :
82 15 : return shmem;
83 15 : }
84 :
85 : fd_cost_tracker_t *
86 21 : fd_cost_tracker_join( void * shct ) {
87 21 : if( FD_UNLIKELY( !shct ) ) {
88 3 : FD_LOG_WARNING(( "NULL mem" ));
89 3 : return NULL;
90 3 : }
91 :
92 18 : if( FD_UNLIKELY( !fd_ulong_is_aligned( (ulong)shct, fd_cost_tracker_align() ) ) ) {
93 0 : FD_LOG_WARNING(( "misaligned mem" ));
94 0 : return NULL;
95 0 : }
96 :
97 18 : cost_tracker_outer_t * cost_tracker = (cost_tracker_outer_t *)shct;
98 :
99 18 : if( FD_UNLIKELY( cost_tracker->magic!=FD_COST_TRACKER_MAGIC ) ) {
100 3 : FD_LOG_WARNING(( "Invalid cost tracker magic" ));
101 3 : return NULL;
102 3 : }
103 :
104 15 : return cost_tracker->cost_tracker;
105 18 : }
106 :
107 : ulong
108 0 : fd_cost_tracker_block_cost_limit( fd_bank_t const * bank ) {
109 0 : fd_features_t const * features = fd_bank_features_query( bank );
110 0 : ulong slot = fd_bank_slot_get( bank );
111 :
112 0 : if( FD_FEATURE_ACTIVE( slot, features, raise_block_limits_to_100m ) ) return FD_MAX_BLOCK_UNITS_SIMD_0286;
113 0 : else if( FD_FEATURE_ACTIVE( slot, features, raise_block_limits_to_60m ) ) return FD_MAX_BLOCK_UNITS_SIMD_0256;
114 0 : else return FD_MAX_BLOCK_UNITS_SIMD_0207;
115 0 : }
116 :
117 : void
118 : fd_cost_tracker_init( fd_cost_tracker_t * cost_tracker,
119 : fd_features_t const * features,
120 0 : ulong slot ) {
121 0 : if( FD_FEATURE_ACTIVE( slot, features, raise_block_limits_to_100m ) ) {
122 0 : cost_tracker->block_cost_limit = FD_MAX_BLOCK_UNITS_SIMD_0286;
123 0 : cost_tracker->vote_cost_limit = FD_MAX_VOTE_UNITS;
124 0 : cost_tracker->account_cost_limit = FD_MAX_WRITABLE_ACCOUNT_UNITS;
125 0 : } else if( FD_FEATURE_ACTIVE( slot, features, raise_block_limits_to_60m ) ) {
126 0 : cost_tracker->block_cost_limit = FD_MAX_BLOCK_UNITS_SIMD_0256;
127 0 : cost_tracker->vote_cost_limit = FD_MAX_VOTE_UNITS;
128 0 : cost_tracker->account_cost_limit = FD_MAX_WRITABLE_ACCOUNT_UNITS;
129 0 : } else {
130 0 : cost_tracker->block_cost_limit = FD_MAX_BLOCK_UNITS_SIMD_0207;
131 0 : cost_tracker->vote_cost_limit = FD_MAX_VOTE_UNITS;
132 0 : cost_tracker->account_cost_limit = FD_MAX_WRITABLE_ACCOUNT_UNITS;
133 0 : }
134 :
135 : /* https://github.com/anza-xyz/agave/blob/v3.0.1/runtime/src/bank.rs#L4059-L4066 */
136 0 : if( FD_FEATURE_ACTIVE( slot, features, raise_account_cu_limit ) ) {
137 0 : cost_tracker->account_cost_limit = fd_ulong_sat_mul( cost_tracker->block_cost_limit, 40UL ) / 100UL;
138 0 : }
139 :
140 0 : cost_tracker->block_cost = 0UL;
141 0 : cost_tracker->vote_cost = 0UL;
142 0 : cost_tracker->allocated_accounts_data_size = 0UL;
143 :
144 0 : cost_tracker_outer_t * outer = fd_type_pun( cost_tracker );
145 0 : outer->accounts_used = 0UL;
146 0 : account_cost_map_reset( fd_type_pun( outer+1UL ) );
147 0 : }
148 :
149 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L313-L321 */
150 : FD_FN_PURE static inline ulong
151 0 : get_instructions_data_cost( fd_exec_txn_ctx_t const * txn_ctx ) {
152 0 : ulong total_instr_data_sz = 0UL;
153 0 : for( ushort i=0; i<TXN( &txn_ctx->txn )->instr_cnt; i++ ) {
154 0 : total_instr_data_sz += TXN( &txn_ctx->txn )->instr[ i ].data_sz;
155 0 : }
156 0 : return total_instr_data_sz / FD_PACK_INV_COST_PER_INSTR_DATA_BYTE;
157 0 : }
158 :
159 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L152-L187 */
160 : FD_FN_PURE static inline ulong
161 0 : get_signature_cost( fd_exec_txn_ctx_t const * txn_ctx ) {
162 0 : fd_txn_t const * txn = TXN( &txn_ctx->txn );
163 0 : void const * payload = txn_ctx->txn.payload;
164 0 : fd_acct_addr_t const * accounts = fd_txn_get_acct_addrs( txn, payload );
165 :
166 : /* Compute signature counts (both normal + precompile)
167 : TODO: Factor this logic out into a shared function that can be used
168 : both here and in fd_pack_cost.h */
169 0 : ulong signature_cost = fd_ulong_sat_mul( txn->signature_cnt, FD_PACK_COST_PER_SIGNATURE );
170 0 : ulong num_secp256k1_instruction_signatures = 0UL;
171 0 : ulong num_ed25519_instruction_signatures = 0UL;
172 0 : ulong num_secp256r1_instruction_signatures = 0UL;
173 :
174 0 : for( ushort i=0; i<txn->instr_cnt; i++ ) {
175 0 : fd_txn_instr_t const * instr = &txn->instr[ i ];
176 0 : if( instr->data_sz==0UL ) continue;
177 :
178 0 : fd_acct_addr_t const * prog_id = accounts + instr->program_id;
179 0 : uchar const * instr_data = fd_txn_get_instr_data( instr, payload );
180 :
181 0 : if( fd_memeq( prog_id, fd_solana_ed25519_sig_verify_program_id.key, sizeof(fd_pubkey_t) ) ) {
182 0 : num_ed25519_instruction_signatures += (ulong)instr_data[ 0 ];
183 0 : } else if( fd_memeq( prog_id, fd_solana_keccak_secp_256k_program_id.key, sizeof(fd_pubkey_t) ) ) {
184 0 : num_secp256k1_instruction_signatures += (ulong)instr_data[ 0 ];
185 0 : } else if( fd_memeq( prog_id, fd_solana_secp256r1_program_id.key, sizeof(fd_pubkey_t) ) ) {
186 0 : num_secp256r1_instruction_signatures += (ulong)instr_data[ 0 ];
187 0 : }
188 0 : }
189 :
190 : /* No direct permalink, just factored out for readability */
191 0 : ulong secp256k1_verify_cost = fd_ulong_sat_mul( FD_PACK_COST_PER_SECP256K1_SIGNATURE, num_secp256k1_instruction_signatures );
192 :
193 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L155-L160 */
194 0 : ulong ed25519_verify_cost;
195 0 : if( FD_FEATURE_ACTIVE_BANK( txn_ctx->bank, ed25519_precompile_verify_strict ) ) {
196 0 : ed25519_verify_cost = fd_ulong_sat_mul( FD_PACK_COST_PER_ED25519_SIGNATURE, num_ed25519_instruction_signatures );
197 0 : } else {
198 0 : ed25519_verify_cost = fd_ulong_sat_mul( FD_PACK_COST_PER_NON_STRICT_ED25519_SIGNATURE, num_ed25519_instruction_signatures );
199 0 : }
200 :
201 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L162-L167 */
202 0 : ulong secp256r1_verify_cost = 0UL;
203 0 : if( FD_FEATURE_ACTIVE_BANK( txn_ctx->bank, enable_secp256r1_precompile ) ) {
204 0 : secp256r1_verify_cost = fd_ulong_sat_mul( FD_PACK_COST_PER_SECP256R1_SIGNATURE, num_secp256r1_instruction_signatures );
205 0 : }
206 :
207 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L169-L186 */
208 0 : return fd_ulong_sat_add( signature_cost,
209 0 : fd_ulong_sat_add( secp256k1_verify_cost,
210 0 : fd_ulong_sat_add( ed25519_verify_cost,
211 0 : secp256r1_verify_cost ) ) );
212 0 : }
213 :
214 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L190-L192 */
215 : FD_FN_PURE static inline ulong
216 0 : get_write_lock_cost( ulong num_write_locks ) {
217 0 : return fd_ulong_sat_mul( num_write_locks, FD_WRITE_LOCK_UNITS );
218 0 : }
219 :
220 : /* Loop through all instructions here and deserialize the instruction data to try to determine any
221 : system program allocations done.
222 :
223 : https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L367-L386 */
224 : static inline ulong
225 0 : calculate_allocated_accounts_data_size( fd_exec_txn_ctx_t const * txn_ctx ) {
226 0 : fd_txn_t const * txn = TXN( &txn_ctx->txn );
227 0 : void const * payload = txn_ctx->txn.payload;
228 :
229 0 : ulong allocated_accounts_data_size = 0UL;
230 0 : for( ushort i=0; i<txn->instr_cnt; i++ ) {
231 0 : fd_txn_instr_t const * instr = &txn->instr[ i ];
232 0 : fd_acct_addr_t const * accounts = fd_txn_get_acct_addrs( txn, payload );
233 0 : fd_acct_addr_t const * prog_id = accounts + instr->program_id;
234 0 : uchar const * instr_data = fd_txn_get_instr_data( instr, payload );
235 :
236 0 : if( instr->data_sz==0UL || !fd_memeq( prog_id, &fd_solana_system_program_id, sizeof(fd_pubkey_t) ) ) continue;
237 :
238 0 : fd_bincode_decode_ctx_t ctx = {
239 0 : .data = instr_data,
240 0 : .dataend = instr_data + instr->data_sz,
241 0 : };
242 :
243 0 : ulong total_sz = 0UL;
244 0 : int err = fd_system_program_instruction_decode_footprint( &ctx, &total_sz );
245 0 : if( FD_UNLIKELY( err ) ) continue;
246 :
247 0 : uchar buf[total_sz];
248 0 : fd_system_program_instruction_t * instruction = fd_system_program_instruction_decode( buf, &ctx );
249 0 : if( FD_UNLIKELY( !instruction ) ) continue;
250 :
251 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L330-L346 */
252 0 : ulong space = 0UL;
253 :
254 0 : switch( instruction->discriminant ) {
255 0 : case fd_system_program_instruction_enum_create_account: {
256 0 : space = instruction->inner.create_account.space;
257 0 : break;
258 0 : }
259 0 : case fd_system_program_instruction_enum_create_account_with_seed: {
260 0 : space = instruction->inner.create_account_with_seed.space;
261 0 : break;
262 0 : }
263 0 : case fd_system_program_instruction_enum_allocate: {
264 0 : space = instruction->inner.allocate;
265 0 : break;
266 0 : }
267 0 : case fd_system_program_instruction_enum_allocate_with_seed: {
268 0 : space = instruction->inner.allocate_with_seed.space;
269 0 : break;
270 0 : }
271 0 : }
272 :
273 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L373-L380 */
274 0 : if( FD_UNLIKELY( space>FD_RUNTIME_ACC_SZ_MAX ) ) return 0UL;
275 :
276 0 : allocated_accounts_data_size = fd_ulong_sat_add( allocated_accounts_data_size, space );
277 0 : }
278 :
279 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L396-L397 */
280 0 : return fd_ulong_min( 2UL*FD_RUNTIME_ACC_SZ_MAX, allocated_accounts_data_size );
281 0 : }
282 :
283 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L123-L149 */
284 : static inline fd_transaction_cost_t
285 : calculate_non_vote_transaction_cost( fd_exec_txn_ctx_t const * txn_ctx,
286 : ulong loaded_accounts_data_size_cost,
287 0 : ulong data_bytes_cost ) {
288 :
289 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L132 */
290 0 : ulong signature_cost = get_signature_cost( txn_ctx );
291 :
292 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L133 */
293 0 : ulong write_lock_cost = get_write_lock_cost( fd_txn_account_cnt( TXN( &txn_ctx->txn ), FD_TXN_ACCT_CAT_WRITABLE ) );
294 :
295 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L135-L136 */
296 0 : ulong allocated_accounts_data_size = calculate_allocated_accounts_data_size( txn_ctx );
297 :
298 0 : return (fd_transaction_cost_t){ .discriminant = fd_transaction_cost_enum_transaction,
299 0 : .inner = {
300 0 : .transaction = {
301 0 : .signature_cost = signature_cost,
302 0 : .write_lock_cost = write_lock_cost,
303 0 : .data_bytes_cost = data_bytes_cost,
304 0 : .programs_execution_cost = fd_ulong_sat_sub( txn_ctx->compute_budget_details.compute_unit_limit,
305 0 : txn_ctx->compute_budget_details.compute_meter ),
306 0 : .loaded_accounts_data_size_cost = loaded_accounts_data_size_cost,
307 0 : .allocated_accounts_data_size = allocated_accounts_data_size,
308 0 : }
309 0 : }
310 0 : };
311 0 : }
312 :
313 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/transaction_cost.rs#L26-L42 */
314 : FD_FN_PURE static inline ulong
315 0 : transaction_cost_sum( fd_transaction_cost_t const * txn_cost ) {
316 0 : switch( txn_cost->discriminant ) {
317 0 : case fd_transaction_cost_enum_simple_vote: {
318 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/transaction_cost.rs#L38 */
319 0 : return FD_PACK_SIMPLE_VOTE_COST;
320 0 : }
321 0 : case fd_transaction_cost_enum_transaction: {
322 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/transaction_cost.rs#L164-L171 */
323 0 : fd_usage_cost_details_t const * usage_cost = &txn_cost->inner.transaction;
324 0 : ulong cost = 0UL;
325 :
326 0 : cost = fd_ulong_sat_add( cost, usage_cost->signature_cost );
327 0 : cost = fd_ulong_sat_add( cost, usage_cost->write_lock_cost );
328 0 : cost = fd_ulong_sat_add( cost, usage_cost->data_bytes_cost );
329 0 : cost = fd_ulong_sat_add( cost, usage_cost->programs_execution_cost );
330 0 : cost = fd_ulong_sat_add( cost, usage_cost->loaded_accounts_data_size_cost );
331 :
332 0 : return cost;
333 0 : }
334 0 : default: {
335 0 : __builtin_unreachable();
336 0 : }
337 0 : }
338 0 : }
339 :
340 : FD_FN_PURE static inline ulong
341 0 : get_allocated_accounts_data_size( fd_transaction_cost_t const * txn_cost ) {
342 0 : switch( txn_cost->discriminant ) {
343 0 : case fd_transaction_cost_enum_simple_vote:
344 0 : return 0UL;
345 0 : case fd_transaction_cost_enum_transaction:
346 0 : return txn_cost->inner.transaction.allocated_accounts_data_size;
347 0 : default:
348 0 : __builtin_unreachable();
349 0 : }
350 0 : }
351 :
352 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L277-L322 */
353 : static inline int
354 : would_fit( fd_cost_tracker_t const * cost_tracker,
355 : fd_exec_txn_ctx_t const * txn_ctx,
356 0 : fd_transaction_cost_t const * tx_cost ) {
357 :
358 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L281 */
359 0 : ulong cost = transaction_cost_sum( tx_cost );
360 :
361 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L283-L288 */
362 0 : if( fd_transaction_cost_is_simple_vote( tx_cost ) ) {
363 0 : if( FD_UNLIKELY( fd_ulong_sat_add( cost_tracker->vote_cost, cost )>cost_tracker->vote_cost_limit ) ) {
364 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_VOTE_MAX_LIMIT;
365 0 : }
366 0 : }
367 :
368 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L290-L293 */
369 0 : if( FD_UNLIKELY( fd_ulong_sat_add( cost_tracker->block_cost, cost )>cost_tracker->block_cost_limit ) ) {
370 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_BLOCK_MAX_LIMIT;
371 0 : }
372 :
373 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L295-L298 */
374 0 : if( FD_UNLIKELY( cost>cost_tracker->account_cost_limit ) ) {
375 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_ACCOUNT_MAX_LIMIT;
376 0 : }
377 :
378 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L300-L301 */
379 0 : ulong allocated_accounts_data_size = fd_ulong_sat_add( cost_tracker->allocated_accounts_data_size,
380 0 : get_allocated_accounts_data_size( tx_cost ) );
381 :
382 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L303-L304 */
383 0 : if( FD_UNLIKELY( allocated_accounts_data_size>FD_MAX_BLOCK_ACCOUNTS_DATA_SIZE_DELTA ) ) {
384 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_ACCOUNT_DATA_BLOCK_LIMIT;
385 0 : }
386 :
387 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L308-L319 */
388 :
389 0 : account_cost_map_t const * map = fd_type_pun_const(((cost_tracker_outer_t const *)cost_tracker)+1UL);
390 0 : account_cost_t const * pool = fd_type_pun_const( (void*)((ulong)cost_tracker + ((cost_tracker_outer_t const *)cost_tracker)->pool_offset) );
391 :
392 0 : for( ulong i=0UL; i<txn_ctx->accounts_cnt; i++ ) {
393 0 : if( !fd_exec_txn_ctx_account_is_writable_idx( txn_ctx, (ushort)i ) ) continue;
394 :
395 0 : fd_pubkey_t const * writable_acc = &txn_ctx->account_keys[i];
396 :
397 0 : account_cost_t const * chained_cost = account_cost_map_ele_query_const( map, writable_acc, NULL, pool );
398 0 : if( FD_UNLIKELY( chained_cost && fd_ulong_sat_add( chained_cost->cost, cost )>cost_tracker->account_cost_limit ) ) {
399 0 : return FD_COST_TRACKER_ERROR_WOULD_EXCEED_ACCOUNT_MAX_LIMIT;
400 0 : }
401 0 : }
402 :
403 0 : return FD_COST_TRACKER_SUCCESS;
404 0 : }
405 :
406 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L352-L372 */
407 : static inline void
408 : add_transaction_execution_cost( fd_cost_tracker_t * _cost_tracker,
409 : fd_exec_txn_ctx_t const * txn_ctx,
410 : fd_transaction_cost_t const * tx_cost,
411 0 : ulong adjustment ) {
412 0 : cost_tracker_outer_t * cost_tracker = fd_type_pun( _cost_tracker );
413 0 : account_cost_map_t * map = fd_type_pun( cost_tracker+1UL );
414 0 : account_cost_t * pool = fd_type_pun( (void*)((ulong)cost_tracker+cost_tracker->pool_offset) );
415 :
416 0 : for( ulong i=0UL; i<txn_ctx->accounts_cnt; i++ ) {
417 0 : if( FD_LIKELY( !fd_exec_txn_ctx_account_is_writable_idx( txn_ctx, (ushort)i ) ) ) continue;
418 :
419 0 : fd_pubkey_t const * writable_acc = &txn_ctx->account_keys[i];
420 :
421 0 : account_cost_t * account_cost = account_cost_map_ele_query( map, writable_acc, NULL, pool );
422 0 : if( FD_UNLIKELY( !account_cost ) ) {
423 0 : FD_TEST( cost_tracker->accounts_used<FD_RUNTIME_MAX_WRITABLE_ACCOUNTS_PER_SLOT );
424 :
425 0 : account_cost = pool+cost_tracker->accounts_used;
426 0 : cost_tracker->accounts_used++;
427 :
428 0 : account_cost->account = *writable_acc;
429 0 : account_cost->cost = adjustment;
430 :
431 0 : account_cost_map_ele_insert( map, account_cost, pool );
432 0 : } else {
433 0 : account_cost->cost = fd_ulong_sat_add( account_cost->cost, adjustment );
434 0 : }
435 0 : }
436 :
437 0 : cost_tracker->cost_tracker->block_cost = fd_ulong_sat_add( cost_tracker->cost_tracker->block_cost, adjustment );
438 0 : if( FD_UNLIKELY( fd_transaction_cost_is_simple_vote( tx_cost ) ) ) {
439 0 : cost_tracker->cost_tracker->vote_cost = fd_ulong_sat_add( cost_tracker->cost_tracker->vote_cost, adjustment );
440 0 : }
441 0 : }
442 :
443 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L325-L335 */
444 : static inline void
445 : add_transaction_cost( fd_cost_tracker_t * cost_tracker,
446 : fd_exec_txn_ctx_t const * txn_ctx,
447 0 : fd_transaction_cost_t const * tx_cost ) {
448 : /* Note: We purposely omit signature counts updates since they're not relevant to cost calculations right now. */
449 0 : cost_tracker->allocated_accounts_data_size += get_allocated_accounts_data_size( tx_cost );
450 0 : add_transaction_execution_cost( cost_tracker, txn_ctx, tx_cost, transaction_cost_sum( tx_cost ) );
451 0 : }
452 :
453 : int
454 : fd_cost_tracker_calculate_cost_and_add( fd_cost_tracker_t * cost_tracker,
455 0 : fd_exec_txn_ctx_t const * txn_ctx ) {
456 0 : if( FD_UNLIKELY( !txn_ctx ) ) {
457 0 : return FD_COST_TRACKER_SUCCESS;
458 0 : }
459 :
460 : /* https://github.com/anza-xyz/agave/blob/v2.1.0/cost-model/src/cost_model.rs#L83-L85 */
461 0 : fd_transaction_cost_t txn_cost;
462 0 : if( fd_txn_is_simple_vote_transaction( TXN( &txn_ctx->txn ), txn_ctx->txn.payload ) ) {
463 0 : txn_cost = (fd_transaction_cost_t){ .discriminant = fd_transaction_cost_enum_simple_vote };
464 0 : } else {
465 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L78-L81 */
466 0 : ulong loaded_accounts_data_size_cost = fd_cost_tracker_calculate_loaded_accounts_data_size_cost( txn_ctx );
467 :
468 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L82-L83 */
469 0 : ulong instructions_data_cost = get_instructions_data_cost( txn_ctx );
470 :
471 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_model.rs#L85-L93 */
472 0 : txn_cost = calculate_non_vote_transaction_cost( txn_ctx, loaded_accounts_data_size_cost, instructions_data_cost );
473 0 : }
474 :
475 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L167 */
476 0 : int err = would_fit( cost_tracker, txn_ctx, &txn_cost );
477 0 : if( FD_UNLIKELY( err ) ) return err;
478 :
479 : /* We don't need `updated_costliest_account_cost` since it seems to be
480 : for a different use case other than validating block cost limits.
481 : https://github.com/anza-xyz/agave/blob/v2.2.0/cost-model/src/cost_tracker.rs#L168 */
482 0 : add_transaction_cost( cost_tracker, txn_ctx, &txn_cost );
483 0 : return FD_COST_TRACKER_SUCCESS;
484 0 : }
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