Line data Source code
1 : #include "fd_sysvar_clock.h"
2 : #include "fd_sysvar_epoch_schedule.h"
3 : #include "../fd_runtime_stack.h"
4 : #include "../fd_system_ids.h"
5 : #include "../program/fd_program_util.h"
6 : #include "../program/vote/fd_vote_state_versioned.h"
7 : #include "../program/vote/fd_vote_codec.h"
8 : #include "../../accdb/fd_accdb_sync.h"
9 :
10 : /* Syvar Clock Possible Values:
11 : slot:
12 : [0, ULONG_MAX]
13 :
14 : epoch:
15 : [0, slot/432000UL]
16 :
17 : epoch_start_timestamp:
18 : [0, ULONG_MAX]
19 :
20 : unix_timestamp:
21 : This value is bounded by the slot distance from the
22 : epoch_start_timestamp.
23 : The protocol allows for a maximum drift (either fast or slow) from the
24 : start of the epoch's timestamp. The expected time is called the PoH
25 : offset. This offset is calculated by (epoch_start_timestamp + slots
26 : since epoch * slot_duration). The drift is then bounded by the
27 : max_allowable_drift_{slow,fast}. The stake weighted offset can be
28 : 150% more than the PoH offset and 25% less than the PoH offset.
29 : So, the bounds for the unix_timestamp can be calculated by:
30 : upper bound = epoch_start_timestamp + (slots since epoch * slot_duration) * 2.5
31 : lower bound = epoch_start_timestamp + (slots since epoch * slot_duration) * 0.75
32 :
33 : leader_schedule_epoch:
34 : This is the value of the epoch used for the leader schedule. It is
35 : computed based on the values of the epoch schedule (first_normal_slot,
36 : leader_schedule_slot_offset, slots_per_epoch). It is always equal to
37 : ((slot - first_normal_slot) + leader_schedule_slot_offset) / schedule->slots_per_epoch
38 : */
39 :
40 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L14 */
41 3378 : #define MAX_ALLOWABLE_DRIFT_FAST_PERCENT ( 25U )
42 :
43 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L15 */
44 3378 : #define MAX_ALLOWABLE_DRIFT_SLOW_PERCENT ( 150U )
45 :
46 : /* Do all intermediate calculations at nanosecond precision, to mirror
47 : Solana's behavior. */
48 6780 : #define NS_IN_S ((long)1e9)
49 :
50 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2110-L2117 */
51 : static inline long
52 18 : unix_timestamp_from_genesis( fd_bank_t * bank ) {
53 : /* TODO: genesis_creation_time needs to be a long in the bank. */
54 18 : return fd_long_sat_add(
55 18 : (long)bank->f.genesis_creation_time,
56 18 : (long)( fd_uint128_sat_mul( bank->f.slot, bank->f.ns_per_slot.ud ) / NS_IN_S ) );
57 18 : }
58 :
59 : fd_sol_sysvar_clock_t *
60 : fd_sysvar_clock_read( fd_accdb_user_t * accdb,
61 : fd_funk_txn_xid_t const * xid,
62 3528 : fd_sol_sysvar_clock_t * clock ) {
63 3528 : fd_accdb_ro_t ro[1];
64 3528 : if( FD_UNLIKELY( !fd_accdb_open_ro( accdb, ro, xid, &fd_sysvar_clock_id ) ) ) {
65 0 : return NULL;
66 0 : }
67 :
68 3528 : if( FD_UNLIKELY( fd_accdb_ref_data_sz ( ro ) < sizeof(fd_sol_sysvar_clock_t) ) ) {
69 0 : fd_accdb_close_ro( accdb, ro );
70 0 : return NULL;
71 0 : }
72 :
73 3528 : fd_memcpy( clock, fd_accdb_ref_data_const( ro ), sizeof(fd_sol_sysvar_clock_t) );
74 3528 : fd_accdb_close_ro( accdb, ro );
75 3528 : return clock;
76 3528 : }
77 :
78 : void
79 : fd_sysvar_clock_init( fd_bank_t * bank,
80 : fd_accdb_user_t * accdb,
81 : fd_funk_txn_xid_t const * xid,
82 18 : fd_capture_ctx_t * capture_ctx ) {
83 18 : long timestamp = unix_timestamp_from_genesis( bank );
84 :
85 18 : fd_sol_sysvar_clock_t clock = {
86 18 : .slot = bank->f.slot,
87 18 : .epoch = 0,
88 18 : .epoch_start_timestamp = timestamp,
89 18 : .leader_schedule_epoch = 1,
90 18 : .unix_timestamp = timestamp,
91 18 : };
92 18 : fd_sysvar_clock_write( bank, accdb, xid, capture_ctx, &clock );
93 18 : }
94 :
95 : #define SORT_NAME sort_stake_ts
96 12 : #define SORT_KEY_T ts_est_ele_t
97 6 : #define SORT_BEFORE(a,b) ( (a).timestamp < (b).timestamp )
98 : #include "../../../util/tmpl/fd_sort.c"
99 :
100 : static void
101 : accum_vote_stakes_no_vat( fd_accdb_user_t * accdb,
102 : fd_funk_txn_xid_t const * xid,
103 : fd_bank_t * bank,
104 : fd_runtime_stack_t * runtime_stack,
105 : uint128 * total_stake_out,
106 3516 : ulong * ts_ele_cnt_out ) {
107 :
108 3516 : ts_est_ele_t * ts_eles = runtime_stack->clock_ts.staked_ts;
109 3516 : ulong ts_ele_cnt = 0UL;
110 :
111 3516 : uint128 total_stake = 0UL;
112 :
113 3516 : fd_epoch_schedule_t const * epoch_schedule = &bank->f.epoch_schedule;
114 3516 : ulong slot_duration = bank->f.ns_per_slot.ul[0];
115 3516 : ulong current_slot = bank->f.slot;
116 :
117 3516 : fd_vote_stakes_t * vote_stakes = fd_bank_vote_stakes( bank );
118 3516 : ushort fork_idx = bank->vote_stakes_fork_id;
119 :
120 3516 : fd_top_votes_t const * top_votes = fd_bank_top_votes_t_2_query( bank );
121 :
122 3516 : uchar __attribute__((aligned(FD_VOTE_STAKES_ITER_ALIGN))) iter_mem[ FD_VOTE_STAKES_ITER_FOOTPRINT ];
123 3516 : for( fd_vote_stakes_iter_t * iter = fd_vote_stakes_fork_iter_init( vote_stakes, fork_idx, iter_mem );
124 7032 : !fd_vote_stakes_fork_iter_done( vote_stakes, fork_idx, iter );
125 3516 : fd_vote_stakes_fork_iter_next( vote_stakes, fork_idx, iter ) ) {
126 3516 : fd_pubkey_t pubkey;
127 3516 : ulong stake_t_2;
128 3516 : fd_vote_stakes_fork_iter_ele( vote_stakes, fork_idx, iter, &pubkey, NULL, &stake_t_2, NULL, NULL, NULL, NULL );
129 3516 : if( FD_UNLIKELY( !stake_t_2 ) ) continue;
130 :
131 3516 : ulong last_vote_slot;
132 3516 : long last_vote_timestamp;
133 3516 : uchar is_valid = 1;
134 3516 : int found = fd_top_votes_query( top_votes, &pubkey, NULL, NULL, &last_vote_slot, &last_vote_timestamp, NULL, &is_valid );
135 3516 : if( FD_UNLIKELY( !found ) ) {
136 12 : fd_accdb_ro_t ro[1];
137 12 : if( FD_UNLIKELY( !fd_accdb_open_ro( accdb, ro, xid, &pubkey ) ) ) {
138 0 : continue;
139 0 : }
140 12 : if( FD_UNLIKELY( !fd_vsv_is_correct_size_owner_and_init( ro->meta ) ) ) {
141 0 : fd_accdb_close_ro( accdb, ro );
142 0 : continue;
143 0 : }
144 12 : fd_vote_block_timestamp_t last_vote;
145 12 : FD_TEST( !fd_vote_account_last_timestamp( fd_account_data( ro->meta ), ro->meta->dlen, &last_vote ) );
146 12 : fd_accdb_close_ro( accdb, ro );
147 12 : last_vote_slot = last_vote.slot;
148 12 : last_vote_timestamp = last_vote.timestamp;
149 12 : }
150 3516 : if( FD_UNLIKELY( !is_valid ) ) continue;
151 :
152 : /* https://github.com/anza-xyz/agave/blob/v3.0.0/runtime/src/bank.rs#L2445 */
153 3516 : ulong slot_delta;
154 3516 : int err = fd_ulong_checked_sub( current_slot, last_vote_slot, &slot_delta );
155 3516 : if( FD_UNLIKELY( err ) ) {
156 : /* Don't count vote accounts with a last vote slot that is greater
157 : than the current slot. */
158 0 : continue;
159 0 : }
160 :
161 : /* Don't count vote accounts that haven't voted in the past 432k
162 : slots (length of an epoch).
163 : https://github.com/anza-xyz/agave/blob/v3.0.0/runtime/src/bank.rs#L2446-L2447 */
164 3516 : if( FD_UNLIKELY( slot_delta>epoch_schedule->slots_per_epoch ) ) {
165 132 : continue;
166 132 : }
167 :
168 : /* Calculate the timestamp estimate by taking the last vote
169 : timestamp and adding the estimated time since the last vote
170 : (delta from last vote slot to current slot * slot duration).
171 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L44-L45 */
172 3384 : ulong offset = fd_ulong_sat_mul( slot_duration, slot_delta );
173 3384 : long estimate = fd_long_sat_add( last_vote_timestamp, (long)(offset / NS_IN_S) );
174 :
175 : /* For each timestamp, accumulate the stake from E-2. If the entry
176 : for the timestamp doesn't exist yet, insert it. Otherwise,
177 : update the existing entry.
178 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L46-L53 */
179 3384 : ts_eles[ ts_ele_cnt ] = (ts_est_ele_t){
180 3384 : .timestamp = estimate,
181 3384 : .stake = { .ud=stake_t_2 },
182 3384 : };
183 3384 : ts_ele_cnt++;
184 :
185 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L54 */
186 3384 : total_stake += stake_t_2;
187 3384 : }
188 3516 : fd_vote_stakes_fork_iter_fini( vote_stakes );
189 :
190 3516 : *total_stake_out = total_stake;
191 3516 : *ts_ele_cnt_out = ts_ele_cnt;
192 3516 : }
193 :
194 : static void
195 : accum_vote_stakes_vat( fd_bank_t * bank,
196 : fd_runtime_stack_t * runtime_stack,
197 : uint128 * total_stake_out,
198 12 : ulong * ts_ele_cnt_out ) {
199 :
200 12 : ts_est_ele_t * ts_eles = runtime_stack->clock_ts.staked_ts;
201 12 : ulong ts_ele_cnt = 0UL;
202 :
203 12 : uint128 total_stake = 0UL;
204 :
205 12 : fd_epoch_schedule_t const * epoch_schedule = &bank->f.epoch_schedule;
206 12 : ulong slot_duration = bank->f.ns_per_slot.ul[0];
207 12 : ulong current_slot = bank->f.slot;
208 :
209 12 : fd_top_votes_t const * top_votes = fd_bank_top_votes_t_2_query( bank );
210 :
211 12 : uchar __attribute__((aligned(FD_TOP_VOTES_ITER_ALIGN))) iter_mem[ FD_TOP_VOTES_ITER_FOOTPRINT ];
212 12 : for( fd_top_votes_iter_t * iter = fd_top_votes_iter_init( top_votes, iter_mem );
213 12 : !fd_top_votes_iter_done( top_votes, iter );
214 12 : fd_top_votes_iter_next( top_votes, iter ) ) {
215 0 : fd_pubkey_t pubkey;
216 0 : ulong stake_t_2;
217 0 : ulong last_vote_slot;
218 0 : long last_vote_timestamp;
219 0 : uchar is_valid;
220 0 : fd_top_votes_iter_ele( top_votes, iter, &pubkey, NULL, &stake_t_2, NULL, &last_vote_slot, &last_vote_timestamp, &is_valid );
221 0 : if( FD_UNLIKELY( !is_valid ) ) continue;
222 :
223 : /* https://github.com/anza-xyz/agave/blob/v3.0.0/runtime/src/bank.rs#L2445 */
224 0 : ulong slot_delta;
225 0 : int err = fd_ulong_checked_sub( current_slot, last_vote_slot, &slot_delta );
226 0 : if( FD_UNLIKELY( err ) ) {
227 : /* Don't count vote accounts with a last vote slot that is greater
228 : than the current slot. */
229 0 : continue;
230 0 : }
231 :
232 : /* Don't count vote accounts that haven't voted in the past 432k
233 : slots (length of an epoch).
234 : https://github.com/anza-xyz/agave/blob/v3.0.0/runtime/src/bank.rs#L2446-L2447 */
235 0 : if( FD_UNLIKELY( slot_delta>epoch_schedule->slots_per_epoch ) ) {
236 0 : continue;
237 0 : }
238 :
239 : /* Calculate the timestamp estimate by taking the last vote
240 : timestamp and adding the estimated time since the last vote
241 : (delta from last vote slot to current slot * slot duration).
242 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L44-L45 */
243 0 : ulong offset = fd_ulong_sat_mul( slot_duration, slot_delta );
244 0 : long estimate = fd_long_sat_add( last_vote_timestamp, (long)(offset / NS_IN_S) );
245 :
246 : /* For each timestamp, accumulate the stake from E-2. If the entry
247 : for the timestamp doesn't exist yet, insert it. Otherwise,
248 : update the existing entry.
249 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L46-L53 */
250 0 : ts_eles[ ts_ele_cnt ] = (ts_est_ele_t){
251 0 : .timestamp = estimate,
252 0 : .stake = { .ud=stake_t_2 },
253 0 : };
254 0 : ts_ele_cnt++;
255 :
256 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L54 */
257 0 : total_stake += stake_t_2;
258 0 : }
259 :
260 12 : *total_stake_out = total_stake;
261 12 : *ts_ele_cnt_out = ts_ele_cnt;
262 12 : }
263 :
264 : /* get_timestamp_estimate calculates a timestamp estimate. Does not
265 : modify the slot context. Walks all cached vote accounts (from the
266 : "bank") and calculates a unix timestamp estimate. Returns the
267 : timestamp estimate. spad is used for scratch allocations (allocates
268 : a treap of size FD_SYSVAR_CLOCK_STAKE_WEIGHTS_MAX). Crashes the
269 : process with FD_LOG_ERR on failure (e.g. too many vote accounts).
270 :
271 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2563-L2601 */
272 : static long
273 : get_timestamp_estimate( fd_accdb_user_t * accdb,
274 : fd_funk_txn_xid_t const * xid,
275 : fd_bank_t * bank,
276 : fd_sol_sysvar_clock_t * clock,
277 : fd_runtime_stack_t * runtime_stack,
278 3528 : ulong const * parent_epoch ) {
279 3528 : fd_epoch_schedule_t const * epoch_schedule = &bank->f.epoch_schedule;
280 3528 : ulong slot_duration = bank->f.ns_per_slot.ul[0];
281 3528 : ulong current_slot = bank->f.slot;
282 :
283 3528 : ts_est_ele_t * ts_eles = runtime_stack->clock_ts.staked_ts;
284 :
285 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L41 */
286 3528 : ulong ts_ele_cnt = 0UL;
287 3528 : uint128 total_stake = 0UL;
288 :
289 : /* A timestamp estimate is calculated at every slot using the most
290 : recent vote states of voting validators. This estimated is based on
291 : a stake weighted median using the stake as of the end of epoch E-2
292 : if we are currently in epoch E. We do not count vote accounts that
293 : have not voted in an epoch's worth of slots (432k). */
294 :
295 3528 : ulong curr_epoch = fd_slot_to_epoch( epoch_schedule, bank->f.slot, NULL );
296 3528 : ulong vat_epoch = fd_slot_to_epoch( epoch_schedule, bank->f.features.validator_admission_ticket, NULL );
297 :
298 3528 : if( curr_epoch>=vat_epoch+1UL ) {
299 12 : accum_vote_stakes_vat( bank, runtime_stack, &total_stake, &ts_ele_cnt );
300 3516 : } else {
301 3516 : accum_vote_stakes_no_vat( accdb, xid, bank, runtime_stack, &total_stake, &ts_ele_cnt );
302 3516 : }
303 :
304 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L56-L58 */
305 3528 : if( FD_UNLIKELY( total_stake==0UL ) ) {
306 150 : return 0L;
307 150 : }
308 :
309 3378 : sort_stake_ts_inplace( ts_eles, ts_ele_cnt );
310 :
311 : /* Populate estimate with the stake-weighted median timestamp.
312 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L59-L68 */
313 3378 : uint128 stake_accumulator = 0;
314 3378 : long estimate = 0L;
315 3384 : for( ulong i=0UL; i<ts_ele_cnt; i++ ) {
316 3384 : stake_accumulator = fd_uint128_sat_add( stake_accumulator, ts_eles[i].stake.ud );
317 3384 : if( stake_accumulator>(total_stake/2UL) ) {
318 3378 : estimate = ts_eles[ i ].timestamp;
319 3378 : break;
320 3378 : }
321 3384 : }
322 :
323 3378 : int const fix_estimate_into_u64 = FD_FEATURE_ACTIVE_BANK( bank, warp_timestamp_again );
324 :
325 : /* Bound estimate by `max_allowable_drift` since the start of the
326 : epoch.
327 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L69-L99 */
328 3378 : ulong epoch_for_start_slot = parent_epoch ? *parent_epoch : curr_epoch;
329 3378 : ulong epoch_start_slot = fd_epoch_slot0( epoch_schedule, epoch_for_start_slot );
330 3378 : long epoch_start_timestamp = clock->epoch_start_timestamp;
331 :
332 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L71-L72 */
333 3378 : ulong poh_estimate_offset = fd_ulong_sat_mul( slot_duration, fd_ulong_sat_sub( current_slot, epoch_start_slot ) );
334 :
335 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L73-L77 */
336 3378 : ulong estimate_offset;
337 3378 : if( fix_estimate_into_u64 ) {
338 0 : estimate_offset = fd_ulong_sat_mul( NS_IN_S, fd_ulong_sat_sub( (ulong)estimate, (ulong)epoch_start_timestamp ) );
339 3378 : } else {
340 3378 : estimate_offset = fd_ulong_sat_mul( NS_IN_S, (ulong)fd_long_sat_sub( estimate, epoch_start_timestamp ) );
341 3378 : }
342 :
343 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L78-L81 */
344 3378 : ulong max_allowable_drift_fast = fd_ulong_sat_mul( poh_estimate_offset, MAX_ALLOWABLE_DRIFT_FAST_PERCENT ) / 100UL;
345 3378 : ulong max_allowable_drift_slow = fd_ulong_sat_mul( poh_estimate_offset, MAX_ALLOWABLE_DRIFT_SLOW_PERCENT ) / 100UL;
346 :
347 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L82-L98 */
348 3378 : if( estimate_offset>poh_estimate_offset && fd_ulong_sat_sub( estimate_offset, poh_estimate_offset )>max_allowable_drift_slow ) {
349 0 : estimate = fd_long_sat_add(
350 0 : epoch_start_timestamp,
351 0 : fd_long_sat_add( (long)poh_estimate_offset / NS_IN_S, (long)max_allowable_drift_slow / NS_IN_S ) );
352 3378 : } else if( estimate_offset<poh_estimate_offset && fd_ulong_sat_sub( poh_estimate_offset, estimate_offset )>max_allowable_drift_fast ) {
353 0 : estimate = fd_long_sat_sub(
354 0 : fd_long_sat_add( epoch_start_timestamp, (long)poh_estimate_offset / NS_IN_S ),
355 0 : (long)max_allowable_drift_fast / NS_IN_S );
356 0 : }
357 :
358 3378 : return estimate;
359 3528 : }
360 :
361 : /* TODO: This function should be called from genesis bootup as well with
362 : parent_epoch = NULL
363 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2158-L2215 */
364 : void
365 : fd_sysvar_clock_update( fd_bank_t * bank,
366 : fd_accdb_user_t * accdb,
367 : fd_funk_txn_xid_t const * xid,
368 : fd_capture_ctx_t * capture_ctx,
369 : fd_runtime_stack_t * runtime_stack,
370 3528 : ulong const * parent_epoch ) {
371 3528 : fd_sol_sysvar_clock_t clock_[1];
372 3528 : fd_sol_sysvar_clock_t * clock = fd_sysvar_clock_read( accdb, xid, clock_ );
373 3528 : if( FD_UNLIKELY( !clock ) ) FD_LOG_ERR(( "fd_sysvar_clock_read failed" ));
374 :
375 3528 : fd_epoch_schedule_t const * epoch_schedule = &bank->f.epoch_schedule;
376 3528 : ulong current_slot = bank->f.slot;
377 3528 : ulong current_epoch = fd_slot_to_epoch( epoch_schedule, current_slot, NULL );
378 :
379 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2159 */
380 3528 : long unix_timestamp = clock->unix_timestamp;
381 :
382 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2175 */
383 3528 : long ancestor_timestamp = clock->unix_timestamp;
384 :
385 : /* TODO: Are we handling slot 0 correctly?
386 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2176-L2183 */
387 3528 : long timestamp_estimate = get_timestamp_estimate( accdb, xid, bank, clock, runtime_stack, parent_epoch );
388 :
389 : /* If the timestamp was successfully calculated, use it. It not keep the old one. */
390 3528 : if( FD_LIKELY( timestamp_estimate!=0L ) ) {
391 0 : unix_timestamp = timestamp_estimate;
392 :
393 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2180-L2182 */
394 0 : if( timestamp_estimate<ancestor_timestamp ) {
395 0 : unix_timestamp = ancestor_timestamp;
396 0 : }
397 0 : }
398 :
399 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2191-L2197 */
400 3528 : long epoch_start_timestamp = (parent_epoch!=NULL && *parent_epoch!=current_epoch) ?
401 129 : unix_timestamp :
402 3528 : clock->epoch_start_timestamp;
403 :
404 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2198-L2201 */
405 3528 : if( FD_UNLIKELY( current_slot==0UL ) ) {
406 0 : long timestamp_from_genesis = unix_timestamp_from_genesis( bank );
407 0 : unix_timestamp = timestamp_from_genesis;
408 0 : epoch_start_timestamp = timestamp_from_genesis;
409 0 : }
410 :
411 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2202-L2208 */
412 3528 : *clock = (fd_sol_sysvar_clock_t){
413 3528 : .slot = current_slot,
414 3528 : .epoch_start_timestamp = epoch_start_timestamp,
415 3528 : .epoch = current_epoch,
416 3528 : .leader_schedule_epoch = fd_slot_to_leader_schedule_epoch( epoch_schedule, current_slot ),
417 3528 : .unix_timestamp = unix_timestamp,
418 3528 : };
419 :
420 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2209-L2214 */
421 3528 : fd_sysvar_clock_write( bank, accdb, xid, capture_ctx, clock );
422 3528 : }
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