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 "../sysvar/fd_sysvar.h"
6 : #include "../program/vote/fd_vote_state_versioned.h"
7 :
8 : /* Syvar Clock Possible Values:
9 : slot:
10 : [0, ULONG_MAX]
11 :
12 : epoch:
13 : [0, slot/432000UL]
14 :
15 : epoch_start_timestamp:
16 : [0, ULONG_MAX]
17 :
18 : unix_timestamp:
19 : This value is bounded by the slot distance from the
20 : epoch_start_timestamp.
21 : The protocol allows for a maximum drift (either fast or slow) from the
22 : start of the epoch's timestamp. The expected time is called the PoH
23 : offset. This offset is calculated by (epoch_start_timestamp + slots
24 : since epoch * slot_duration). The drift is then bounded by the
25 : max_allowable_drift_{slow,fast}. The stake weighted offset can be
26 : 150% more than the PoH offset and 25% less than the PoH offset.
27 : So, the bounds for the unix_timestamp can be calculated by:
28 : upper bound = epoch_start_timestamp + (slots since epoch * slot_duration) * 2.5
29 : lower bound = epoch_start_timestamp + (slots since epoch * slot_duration) * 0.75
30 :
31 : leader_schedule_epoch:
32 : This is the value of the epoch used for the leader schedule. It is
33 : computed based on the values of the epoch schedule (first_normal_slot,
34 : leader_schedule_slot_offset, slots_per_epoch). It is always equal to
35 : ((slot - first_normal_slot) + leader_schedule_slot_offset) / schedule->slots_per_epoch
36 : */
37 :
38 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L14 */
39 4182 : #define MAX_ALLOWABLE_DRIFT_FAST_PERCENT ( 25U )
40 :
41 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L15 */
42 4182 : #define MAX_ALLOWABLE_DRIFT_SLOW_PERCENT ( 150U )
43 :
44 : /* Do all intermediate calculations at nanosecond precision, to mirror
45 : Solana's behavior. */
46 16536 : #define NS_IN_S ((long)1e9)
47 :
48 : /* FD_SYSVAR_CLOCK_STAKE_WEIGHTS_MAX specifies the max number of stake
49 : weights processed in a clock update. */
50 :
51 : #define FD_SYSVAR_CLOCK_STAKE_WEIGHTS_MAX (10240UL)
52 :
53 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2110-L2117 */
54 : static inline long
55 6 : unix_timestamp_from_genesis( fd_bank_t * bank ) {
56 : /* TODO: genesis_creation_time needs to be a long in the bank. */
57 6 : return fd_long_sat_add(
58 6 : (long)bank->f.genesis_creation_time,
59 6 : (long)( fd_uint128_sat_mul( bank->f.slot, bank->f.slot_params.ns_per_slot ) / NS_IN_S ) );
60 6 : }
61 :
62 : static void
63 : fd_sysvar_clock_write( fd_bank_t * bank,
64 : fd_accdb_t * accdb,
65 : fd_capture_ctx_t * capture_ctx,
66 4548 : fd_sol_sysvar_clock_t const * clock ) {
67 4548 : fd_sysvar_account_update( bank, accdb, capture_ctx, &fd_sysvar_clock_id, clock, sizeof(fd_sol_sysvar_clock_t) );
68 4548 : }
69 :
70 : fd_sol_sysvar_clock_t *
71 : fd_sysvar_clock_read( fd_accdb_t * accdb,
72 : fd_accdb_fork_id_t fork_id,
73 4578 : fd_sol_sysvar_clock_t * clock ) {
74 4578 : fd_acc_t acc = fd_accdb_read_one( accdb, fork_id, fd_sysvar_clock_id.uc );
75 4578 : if( FD_UNLIKELY( !acc.lamports || acc.data_len<sizeof(fd_sol_sysvar_clock_t) ) ) {
76 : /* This check is needed as a quirk of the fuzzer. If a sysvar
77 : account exists in the accounts database, but doesn't have any
78 : lamports, this means that the account does not exist. This
79 : wouldn't happen in a real execution environment. */
80 0 : fd_accdb_unread_one( accdb, &acc );
81 0 : return NULL;
82 0 : }
83 :
84 4578 : fd_memcpy( clock, acc.data, sizeof(fd_sol_sysvar_clock_t) );
85 4578 : fd_accdb_unread_one( accdb, &acc );
86 4578 : return clock;
87 4578 : }
88 :
89 : void
90 : fd_sysvar_clock_init( fd_bank_t * bank,
91 : fd_accdb_t * accdb,
92 6 : fd_capture_ctx_t * capture_ctx ) {
93 6 : long timestamp = unix_timestamp_from_genesis( bank );
94 :
95 6 : fd_sol_sysvar_clock_t clock = {
96 6 : .slot = bank->f.slot,
97 6 : .epoch = 0,
98 6 : .epoch_start_timestamp = timestamp,
99 6 : .leader_schedule_epoch = 1,
100 6 : .unix_timestamp = timestamp,
101 6 : };
102 6 : fd_sysvar_clock_write( bank, accdb, capture_ctx, &clock );
103 6 : }
104 :
105 : #define SORT_NAME sort_stake_ts
106 1347 : #define SORT_KEY_T ts_est_ele_t
107 777 : #define SORT_BEFORE(a,b) ( (a).timestamp < (b).timestamp )
108 : #include "../../../util/tmpl/fd_sort.c"
109 :
110 : static void
111 : accum_vote_stakes_no_vat( fd_bank_t * bank,
112 : fd_accdb_t * accdb,
113 : fd_runtime_stack_t * runtime_stack,
114 : uint128 * total_stake_out,
115 4332 : ulong * ts_ele_cnt_out ) {
116 :
117 4332 : ts_est_ele_t * ts_eles = runtime_stack->clock_ts.staked_ts;
118 4332 : ulong ts_ele_cnt = 0UL;
119 :
120 4332 : uint128 total_stake = 0UL;
121 :
122 4332 : fd_epoch_schedule_t const * epoch_schedule = &bank->f.epoch_schedule;
123 4332 : ulong current_slot = bank->f.slot;
124 :
125 4332 : fd_vote_stakes_t * vote_stakes = fd_bank_vote_stakes( bank );
126 4332 : ushort fork_idx = bank->vote_stakes_fork_id;
127 :
128 4332 : fd_top_votes_t const * top_votes = fd_bank_top_votes_t_2_query( bank );
129 :
130 4332 : uchar __attribute__((aligned(FD_VOTE_STAKES_ITER_ALIGN))) iter_mem[ FD_VOTE_STAKES_ITER_FOOTPRINT ];
131 4332 : for( fd_vote_stakes_iter_t * iter = fd_vote_stakes_fork_iter_init( vote_stakes, fork_idx, iter_mem );
132 9222 : !fd_vote_stakes_fork_iter_done( vote_stakes, fork_idx, iter );
133 4890 : fd_vote_stakes_fork_iter_next( vote_stakes, fork_idx, iter ) ) {
134 4890 : fd_pubkey_t pubkey;
135 4890 : ulong stake_t_2;
136 4890 : fd_vote_stakes_fork_iter_ele( vote_stakes, fork_idx, iter, &pubkey, NULL, &stake_t_2, NULL, NULL, NULL, NULL );
137 4890 : if( FD_UNLIKELY( !stake_t_2 ) ) continue;
138 :
139 4890 : ulong last_vote_slot;
140 4890 : long last_vote_timestamp;
141 4890 : uchar is_valid = 1;
142 4890 : int found = fd_top_votes_query( top_votes, &pubkey, NULL, NULL, &last_vote_slot, &last_vote_timestamp, NULL, &is_valid );
143 4890 : if( FD_UNLIKELY( !found ) ) {
144 396 : fd_acc_t acc = fd_accdb_read_one( accdb, bank->accdb_fork_id, pubkey.uc );
145 396 : if( FD_UNLIKELY( !acc.lamports || !fd_vsv_is_correct_size_owner_and_init( acc.owner, acc.data, acc.data_len ) ) ) {
146 0 : fd_accdb_unread_one( accdb, &acc );
147 0 : continue;
148 0 : }
149 :
150 396 : fd_vote_block_timestamp_t last_vote;
151 396 : FD_TEST( !fd_vote_account_last_timestamp( acc.data, acc.data_len, &last_vote ) );
152 396 : fd_accdb_unread_one( accdb, &acc );
153 396 : last_vote_slot = last_vote.slot;
154 396 : last_vote_timestamp = last_vote.timestamp;
155 396 : }
156 4890 : if( FD_UNLIKELY( !is_valid ) ) continue;
157 :
158 : /* https://github.com/anza-xyz/agave/blob/v3.0.0/runtime/src/bank.rs#L2445 */
159 4890 : ulong slot_delta;
160 4890 : int err = fd_ulong_checked_sub( current_slot, last_vote_slot, &slot_delta );
161 4890 : if( FD_UNLIKELY( err ) ) {
162 : /* Don't count vote accounts with a last vote slot that is greater
163 : than the current slot. */
164 0 : continue;
165 0 : }
166 :
167 : /* Don't count vote accounts that haven't voted in the past 432k
168 : slots (length of an epoch).
169 : https://github.com/anza-xyz/agave/blob/v3.0.0/runtime/src/bank.rs#L2446-L2447 */
170 4890 : if( FD_UNLIKELY( slot_delta>epoch_schedule->slots_per_epoch ) ) {
171 627 : continue;
172 627 : }
173 :
174 : /* Calculate the timestamp estimate by taking the last vote
175 : timestamp and adding the estimated time since the last vote
176 : (delta from last vote slot to current slot * slot duration).
177 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L44-L45 */
178 4263 : ulong offset = fd_slot_params_slot_range_duration_ns( bank, last_vote_slot+1UL, current_slot+1UL );
179 4263 : long estimate = fd_long_sat_add( last_vote_timestamp, (long)(offset / NS_IN_S) );
180 :
181 : /* For each timestamp, accumulate the stake from E-2. If the acc
182 : for the timestamp doesn't exist yet, insert it. Otherwise,
183 : update the existing acc.
184 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L46-L53 */
185 4263 : ts_eles[ ts_ele_cnt ] = (ts_est_ele_t){
186 4263 : .timestamp = estimate,
187 4263 : .stake = { .ud=stake_t_2 },
188 4263 : };
189 4263 : ts_ele_cnt++;
190 :
191 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L54 */
192 4263 : total_stake += stake_t_2;
193 4263 : }
194 4332 : fd_vote_stakes_fork_iter_fini( vote_stakes );
195 :
196 4332 : *total_stake_out = total_stake;
197 4332 : *ts_ele_cnt_out = ts_ele_cnt;
198 4332 : }
199 :
200 : static void
201 : accum_vote_stakes_vat( fd_bank_t * bank,
202 : fd_runtime_stack_t * runtime_stack,
203 : uint128 * total_stake_out,
204 210 : ulong * ts_ele_cnt_out ) {
205 :
206 210 : ts_est_ele_t * ts_eles = runtime_stack->clock_ts.staked_ts;
207 210 : ulong ts_ele_cnt = 0UL;
208 :
209 210 : uint128 total_stake = 0UL;
210 :
211 210 : fd_epoch_schedule_t const * epoch_schedule = &bank->f.epoch_schedule;
212 210 : ulong current_slot = bank->f.slot;
213 :
214 210 : fd_top_votes_t const * top_votes = fd_bank_top_votes_t_2_query( bank );
215 :
216 210 : uchar __attribute__((aligned(FD_TOP_VOTES_ITER_ALIGN))) iter_mem[ FD_TOP_VOTES_ITER_FOOTPRINT ];
217 210 : for( fd_top_votes_iter_t * iter = fd_top_votes_iter_init( top_votes, iter_mem );
218 735 : !fd_top_votes_iter_done( top_votes, iter );
219 525 : fd_top_votes_iter_next( top_votes, iter ) ) {
220 525 : fd_pubkey_t pubkey;
221 525 : ulong stake_t_2;
222 525 : ulong last_vote_slot;
223 525 : long last_vote_timestamp;
224 525 : uchar is_valid;
225 525 : fd_top_votes_iter_ele( top_votes, iter, &pubkey, NULL, &stake_t_2, NULL, &last_vote_slot, &last_vote_timestamp, &is_valid );
226 525 : if( FD_UNLIKELY( !is_valid ) ) continue;
227 :
228 : /* https://github.com/anza-xyz/agave/blob/v3.0.0/runtime/src/bank.rs#L2445 */
229 489 : ulong slot_delta;
230 489 : int err = fd_ulong_checked_sub( current_slot, last_vote_slot, &slot_delta );
231 489 : if( FD_UNLIKELY( err ) ) {
232 : /* Don't count vote accounts with a last vote slot that is greater
233 : than the current slot. */
234 0 : continue;
235 0 : }
236 :
237 : /* Don't count vote accounts that haven't voted in the past 432k
238 : slots (length of an epoch).
239 : https://github.com/anza-xyz/agave/blob/v3.0.0/runtime/src/bank.rs#L2446-L2447 */
240 489 : if( FD_UNLIKELY( slot_delta>epoch_schedule->slots_per_epoch ) ) {
241 0 : continue;
242 0 : }
243 :
244 : /* Calculate the timestamp estimate by taking the last vote
245 : timestamp and adding the estimated time since the last vote
246 : (delta from last vote slot to current slot * slot duration).
247 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L44-L45 */
248 489 : ulong offset = fd_slot_params_slot_range_duration_ns( bank, last_vote_slot+1UL, current_slot+1UL );
249 489 : long estimate = fd_long_sat_add( last_vote_timestamp, (long)(offset / NS_IN_S) );
250 :
251 : /* For each timestamp, accumulate the stake from E-2. If the entry
252 : for the timestamp doesn't exist yet, insert it. Otherwise,
253 : update the existing entry.
254 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L46-L53 */
255 489 : ts_eles[ ts_ele_cnt ] = (ts_est_ele_t){
256 489 : .timestamp = estimate,
257 489 : .stake = { .ud=stake_t_2 },
258 489 : };
259 489 : ts_ele_cnt++;
260 :
261 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L54 */
262 489 : total_stake += stake_t_2;
263 489 : }
264 :
265 210 : *total_stake_out = total_stake;
266 210 : *ts_ele_cnt_out = ts_ele_cnt;
267 210 : }
268 :
269 : /* get_timestamp_estimate calculates a timestamp estimate. Does not
270 : modify the slot context. Walks all cached vote accounts (from the
271 : "bank") and calculates a unix timestamp estimate. Returns the
272 : timestamp estimate. spad is used for scratch allocations (allocates
273 : a treap of size FD_SYSVAR_CLOCK_STAKE_WEIGHTS_MAX). Crashes the
274 : process with FD_LOG_ERR on failure (e.g. too many vote accounts).
275 :
276 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2563-L2601 */
277 : static long
278 : get_timestamp_estimate( fd_bank_t * bank,
279 : fd_accdb_t * accdb,
280 : fd_sol_sysvar_clock_t * clock,
281 : fd_runtime_stack_t * runtime_stack,
282 : ulong const * parent_epoch,
283 4542 : int * out_estimate_present ) {
284 4542 : fd_epoch_schedule_t const * epoch_schedule = &bank->f.epoch_schedule;
285 4542 : ulong current_slot = bank->f.slot;
286 :
287 4542 : ts_est_ele_t * ts_eles = runtime_stack->clock_ts.staked_ts;
288 :
289 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L41 */
290 4542 : ulong ts_ele_cnt = 0UL;
291 4542 : uint128 total_stake = 0UL;
292 :
293 : /* A timestamp estimate is calculated at every slot using the most
294 : recent vote states of voting validators. This estimated is based on
295 : a stake weighted median using the stake as of the end of epoch E-2
296 : if we are currently in epoch E. We do not count vote accounts that
297 : have not voted in an epoch's worth of slots (432k). */
298 :
299 4542 : ulong curr_epoch = fd_slot_to_epoch( epoch_schedule, bank->f.slot, NULL );
300 4542 : ulong vat_epoch = fd_slot_to_epoch( epoch_schedule, bank->f.features.validator_admission_ticket, NULL );
301 :
302 4542 : if( curr_epoch>=vat_epoch+1UL ) {
303 210 : accum_vote_stakes_vat( bank, runtime_stack, &total_stake, &ts_ele_cnt );
304 4332 : } else {
305 4332 : accum_vote_stakes_no_vat( bank, accdb, runtime_stack, &total_stake, &ts_ele_cnt );
306 4332 : }
307 :
308 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L56-L58 */
309 4542 : if( FD_UNLIKELY( total_stake==0UL ) ) {
310 360 : *out_estimate_present = 0;
311 360 : return 0L;
312 360 : }
313 :
314 4182 : sort_stake_ts_inplace( ts_eles, ts_ele_cnt );
315 :
316 : /* Populate estimate with the stake-weighted median timestamp.
317 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L59-L68 */
318 4182 : uint128 stake_accumulator = 0;
319 4182 : long estimate = 0L;
320 4752 : for( ulong i=0UL; i<ts_ele_cnt; i++ ) {
321 4752 : stake_accumulator = fd_uint128_sat_add( stake_accumulator, ts_eles[i].stake.ud );
322 4752 : if( stake_accumulator>(total_stake/2UL) ) {
323 4182 : estimate = ts_eles[ i ].timestamp;
324 4182 : break;
325 4182 : }
326 4752 : }
327 :
328 : /* Bound estimate by `max_allowable_drift` since the start of the
329 : epoch.
330 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L69-L99 */
331 4182 : ulong epoch_for_start_slot = parent_epoch ? *parent_epoch : curr_epoch;
332 4182 : ulong epoch_start_slot = fd_epoch_slot0( epoch_schedule, epoch_for_start_slot );
333 4182 : long epoch_start_timestamp = clock->epoch_start_timestamp;
334 :
335 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L71-L72 */
336 4182 : ulong poh_estimate_offset = fd_slot_params_slot_range_duration_ns( bank, epoch_start_slot+1UL, current_slot+1UL );
337 :
338 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L73-L77 */
339 4182 : ulong estimate_offset = fd_ulong_sat_mul( NS_IN_S, fd_ulong_sat_sub( (ulong)estimate, (ulong)epoch_start_timestamp ) );
340 :
341 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L78-L81 */
342 4182 : ulong max_allowable_drift_fast = fd_ulong_sat_mul( poh_estimate_offset, MAX_ALLOWABLE_DRIFT_FAST_PERCENT ) / 100UL;
343 4182 : ulong max_allowable_drift_slow = fd_ulong_sat_mul( poh_estimate_offset, MAX_ALLOWABLE_DRIFT_SLOW_PERCENT ) / 100UL;
344 :
345 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/stake_weighted_timestamp.rs#L82-L98 */
346 4182 : if( estimate_offset>poh_estimate_offset && fd_ulong_sat_sub( estimate_offset, poh_estimate_offset )>max_allowable_drift_slow ) {
347 207 : estimate = fd_long_sat_add(
348 207 : epoch_start_timestamp,
349 207 : fd_long_sat_add( (long)poh_estimate_offset / NS_IN_S, (long)max_allowable_drift_slow / NS_IN_S ) );
350 3975 : } else if( estimate_offset<poh_estimate_offset && fd_ulong_sat_sub( poh_estimate_offset, estimate_offset )>max_allowable_drift_fast ) {
351 3591 : estimate = fd_long_sat_sub(
352 3591 : fd_long_sat_add( epoch_start_timestamp, (long)poh_estimate_offset / NS_IN_S ),
353 3591 : (long)max_allowable_drift_fast / NS_IN_S );
354 3591 : }
355 :
356 4182 : *out_estimate_present = 1;
357 4182 : return estimate;
358 4542 : }
359 :
360 : /* TODO: This function should be called from genesis bootup as well with
361 : parent_epoch = NULL
362 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2158-L2215 */
363 : void
364 : fd_sysvar_clock_update( fd_bank_t * bank,
365 : fd_accdb_t * accdb,
366 : fd_capture_ctx_t * capture_ctx,
367 : fd_runtime_stack_t * runtime_stack,
368 4542 : ulong const * parent_epoch ) {
369 4542 : fd_sol_sysvar_clock_t clock_[1];
370 4542 : fd_sol_sysvar_clock_t * clock = fd_sysvar_clock_read( accdb, bank->accdb_fork_id, clock_ );
371 4542 : if( FD_UNLIKELY( !clock ) ) FD_LOG_ERR(( "fd_sysvar_clock_read failed" ));
372 :
373 4542 : fd_epoch_schedule_t const * epoch_schedule = &bank->f.epoch_schedule;
374 4542 : ulong current_slot = bank->f.slot;
375 4542 : ulong current_epoch = fd_slot_to_epoch( epoch_schedule, current_slot, NULL );
376 :
377 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2159 */
378 4542 : long unix_timestamp = clock->unix_timestamp;
379 :
380 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2175 */
381 4542 : long ancestor_timestamp = clock->unix_timestamp;
382 :
383 : /* TODO: Are we handling slot 0 correctly?
384 : https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2176-L2183 */
385 4542 : int estimate_present = 0;
386 4542 : long timestamp_estimate = get_timestamp_estimate( bank, accdb, clock, runtime_stack, parent_epoch, &estimate_present );
387 :
388 : /* If the timestamp was successfully calculated, use it. Otherwise,
389 : keep the old one. */
390 4542 : if( FD_LIKELY( estimate_present ) ) {
391 4182 : unix_timestamp = timestamp_estimate;
392 :
393 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2180-L2182 */
394 4182 : if( timestamp_estimate<ancestor_timestamp ) {
395 6 : unix_timestamp = ancestor_timestamp;
396 6 : }
397 4182 : }
398 :
399 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2191-L2197 */
400 4542 : long epoch_start_timestamp = (parent_epoch!=NULL && *parent_epoch!=current_epoch) ?
401 270 : unix_timestamp :
402 4542 : clock->epoch_start_timestamp;
403 :
404 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2198-L2201 */
405 4542 : 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 4542 : *clock = (fd_sol_sysvar_clock_t){
413 4542 : .slot = current_slot,
414 4542 : .epoch_start_timestamp = epoch_start_timestamp,
415 4542 : .epoch = current_epoch,
416 4542 : .leader_schedule_epoch = fd_slot_to_leader_schedule_epoch( epoch_schedule, current_slot ),
417 4542 : .unix_timestamp = unix_timestamp,
418 4542 : };
419 :
420 : /* https://github.com/anza-xyz/agave/blob/v2.3.7/runtime/src/bank.rs#L2209-L2214 */
421 4542 : fd_sysvar_clock_write( bank, accdb, capture_ctx, clock );
422 4542 : }
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