/
two_phase_many.cpp
348 lines (289 loc) · 11.8 KB
/
two_phase_many.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
#include <algorithm>
#include <cassert>
#include <tb_client.hpp>
#include <tb_logger.hpp>
namespace tb = tigerbeetle;
int main() {
std::string address = "127.0.0.1:3001";
tb::Logger log;
try {
fmt::print(fmt::fg(fmt::color::green_yellow) | fmt::emphasis::bold,
"TigerBeetle C++ - Multiple Two Phase [Sample]\n\n");
log.trace("Connecting...");
tb::Client client(
0, // Cluster ID.
address, // Server address.
32, // MaxConcurrency, could be 1 since it's a single-threaded example.
0, // No need for a global context.
tb::on_completion // Completion callback.
);
if (client.currentStatus() != tb::TB_STATUS_SUCCESS) {
log.error("Failed to initialize tb_client");
return -1;
}
// Create two accounts
tb::account<2> accounts;
std::memset(accounts.data(), 0, accounts.size() * sizeof(tb::tb_account_t));
accounts.at(0).id = 1;
accounts.at(0).code = 1;
accounts.at(0).ledger = 1;
accounts.at(1).id = 2;
accounts.at(1).code = 1;
accounts.at(1).ledger = 1;
tb::CompletionContext ctx{};
tb::tb_packet_t *packet = nullptr;
// Acquiring a packet for this request:
if (client.acquire_packet(&packet) != tb::TB_PACKET_ACQUIRE_OK) {
log.error("Too many concurrent packets.");
return -1;
}
packet->operation =
tb::TB_OPERATION_CREATE_ACCOUNTS; // The operation to be performed.
packet->data = accounts.data(); // The data to be sent.
packet->data_size = accounts.size() * sizeof(tb::tb_account_t); //
packet->user_data = &ctx; // User-defined context.
packet->status = tb::TB_PACKET_OK; // Will be set when the reply arrives.
log.trace("Creating accounts...");
client.send_request(packet, &ctx);
if (packet->status != tb::TB_PACKET_OK) {
// Checking if the request failed:
log.error(fmt::format("Error calling create_accounts (ret={})",
packet->status));
return -1;
}
// Releasing the packet, so it can be used in a next request.
client.release_packet(&packet);
if (ctx.size != 0) {
// Checking for errors creating the accounts:
tb::tb_create_accounts_result_t *results =
reinterpret_cast<tb::tb_create_accounts_result_t *>(ctx.reply.data());
int results_len = ctx.size / sizeof(tb::tb_create_accounts_result_t);
log.info("create_account results:");
for (int i = 0; i < results_len; i++) {
log.info(fmt::format("index={}, ret={}", results[i].index,
results[i].result));
}
return -1;
}
log.info("Accounts created successfully");
// Start five pending transfers
tb::transfer<5> transfers;
std::memset(transfers.data(), 0,
transfers.size() * sizeof(tb::tb_transfer_t));
transfers.at(0).id = 1;
transfers.at(0).debit_account_id = 1;
transfers.at(0).credit_account_id = 2;
transfers.at(0).code = 1;
transfers.at(0).ledger = 1;
transfers.at(0).amount = 100;
transfers.at(0).flags = tb::TB_TRANSFER_PENDING;
transfers.at(1).id = 2;
transfers.at(1).debit_account_id = 1;
transfers.at(1).credit_account_id = 2;
transfers.at(1).code = 1;
transfers.at(1).ledger = 1;
transfers.at(1).amount = 200;
transfers.at(1).flags = tb::TB_TRANSFER_PENDING;
transfers.at(2).id = 3;
transfers.at(2).debit_account_id = 1;
transfers.at(2).credit_account_id = 2;
transfers.at(2).code = 1;
transfers.at(2).ledger = 1;
transfers.at(2).amount = 300;
transfers.at(2).flags = tb::TB_TRANSFER_PENDING;
transfers.at(3).id = 4;
transfers.at(3).debit_account_id = 1;
transfers.at(3).credit_account_id = 2;
transfers.at(3).code = 1;
transfers.at(3).ledger = 1;
transfers.at(3).amount = 400;
transfers.at(3).flags = tb::TB_TRANSFER_PENDING;
transfers.at(4).id = 5;
transfers.at(4).debit_account_id = 1;
transfers.at(4).credit_account_id = 2;
transfers.at(4).code = 1;
transfers.at(4).ledger = 1;
transfers.at(4).amount = 500;
transfers.at(4).flags = tb::TB_TRANSFER_PENDING;
// Acquiring a packet for this request:
if (client.acquire_packet(&packet) != tb::TB_PACKET_ACQUIRE_OK) {
log.error("Too many concurrent packets.");
return -1;
}
packet->operation =
tb::TB_OPERATION_CREATE_TRANSFERS; // The operation to be performed.
packet->data = transfers.data(); // The data to be sent.
packet->data_size = transfers.size() * sizeof(tb::tb_transfer_t); //
packet->user_data = &ctx; // User-defined context.
packet->status = tb::TB_PACKET_OK; // Will be set when the reply arrives.
log.trace("Creating transfers...");
client.send_request(packet, &ctx);
if (packet->status != tb::TB_PACKET_OK) {
// Checking if the request failed:
log.error(fmt::format("Error calling create_transfers (ret={})",
packet->status));
return -1;
}
// Releasing the packet, so it can be used in the next request.
client.release_packet(&packet);
if (ctx.size != 0) {
// Checking for errors creating the transfers:
tb::tb_create_transfers_result_t *results =
reinterpret_cast<tb::tb_create_transfers_result_t *>(
ctx.reply.data());
int results_len = ctx.size / sizeof(tb::tb_create_transfers_result_t);
log.info("create_transfers results:");
for (int i = 0; i < results_len; i++) {
log.info(fmt::format("index={}, ret={}", results[i].index,
results[i].result));
}
return -1;
}
// Validate accounts pending and posted debits/credits before finishing the
// two-phase transfer
tb::accountID<2> ids = {1, 2};
std::memset(accounts.data(), 0, accounts.size() * sizeof(tb::tb_account_t));
// Acquiring a packet for this request:
if (client.acquire_packet(&packet) != tb::TB_PACKET_ACQUIRE_OK) {
log.error("Too many concurrent packets.");
return -1;
}
packet->operation = tb::TB_OPERATION_LOOKUP_ACCOUNTS;
packet->data = ids.data();
packet->data_size = sizeof(tb::tb_uint128_t) * ids.size();
packet->user_data = &ctx;
packet->status = tb::TB_PACKET_OK;
client.send_request(packet, &ctx);
if (packet->status != tb::TB_PACKET_OK) {
// Checking if the request failed:
log.error(fmt::format("Error calling lookup_accounts (ret={})",
packet->status));
return -1;
}
// Releasing the packet, so it can be used in a next request.
client.release_packet(&packet);
if (ctx.size != 0) {
// Validate the accounts' pending and posted debits/credits:
tb::tb_account_t *results =
reinterpret_cast<tb::tb_account_t *>(ctx.reply.data());
int results_len = ctx.size / sizeof(tb::tb_account_t);
log.info(fmt::format("{} Account(s) found", results_len));
fmt::println("============================================");
for (int i = 0; i < results_len; i++) {
if (results[i].id == 1) {
assert(results[i].debits_posted == 0);
assert(results[i].credits_posted == 0);
assert(results[i].debits_pending == 1500);
assert(results[i].credits_pending == 0);
} else if (results[i].id == 2) {
assert(results[i].debits_posted == 0);
assert(results[i].credits_posted == 0);
assert(results[i].debits_pending == 0);
assert(results[i].credits_pending == 1500);
} else {
log.error(fmt::format("Unexpected account: {}", results[i].id));
return -1;
}
}
}
// Create a 6th transfer posting the 1st transfer
std::memset(transfers.data(), 0,
transfers.size() * sizeof(tb::tb_transfer_t));
transfers.at(0).id = 6;
transfers.at(0).pending_id = 1;
transfers.at(0).debit_account_id = 1;
transfers.at(0).credit_account_id = 2;
transfers.at(0).code = 1;
transfers.at(0).ledger = 1;
transfers.at(0).amount = 100;
transfers.at(0).flags = tb::TB_TRANSFER_POST_PENDING_TRANSFER;
// Acquiring a packet for this request:
if (client.acquire_packet(&packet) != tb::TB_PACKET_ACQUIRE_OK) {
log.error("Too many concurrent packets.");
return -1;
}
packet->operation =
tb::TB_OPERATION_CREATE_TRANSFERS; // The operation to be performed.
packet->data = transfers.data(); // The data to be sent.
packet->data_size = transfers.size() * sizeof(tb::tb_transfer_t); //
packet->user_data = &ctx; // User-defined context.
packet->status = tb::TB_PACKET_OK; // Will be set when the reply arrives.
log.trace("Creating transfers...");
client.send_request(packet, &ctx);
if (packet->status != tb::TB_PACKET_OK) {
// Checking if the request failed:
log.error(fmt::format("Error calling create_transfers (ret={})",
packet->status));
return -1;
}
// Releasing the packet, so it can be used in the next request.
client.release_packet(&packet);
if (ctx.size != 0) {
// Checking for errors creating the transfers:
tb::tb_create_transfers_result_t *results =
reinterpret_cast<tb::tb_create_transfers_result_t *>(
ctx.reply.data());
int results_len = ctx.size / sizeof(tb::tb_create_transfers_result_t);
log.info("create_transfers results:");
for (int i = 0; i < results_len; i++) {
log.info(fmt::format("index={}, ret={}", results[i].index,
results[i].result));
}
} else {
return -1;
}
// Validate accounts pending and posted debits/credits after finishing the
// two-phase transfer
std::memset(ids.data(), 0, ids.size() * sizeof(tb::tb_uint128_t));
ids.at(0) = 1;
ids.at(1) = 2;
// Acquiring a packet for this request:
if (client.acquire_packet(&packet) != tb::TB_PACKET_ACQUIRE_OK) {
log.error("Too many concurrent packets.");
return -1;
}
packet->operation = tb::TB_OPERATION_LOOKUP_ACCOUNTS;
packet->data = ids.data();
packet->data_size = sizeof(tb::tb_uint128_t) * ids.size();
packet->user_data = &ctx;
packet->status = tb::TB_PACKET_OK;
client.send_request(packet, &ctx);
if (packet->status != tb::TB_PACKET_OK) {
// Checking if the request failed:
log.error(fmt::format("Error calling lookup_accounts (ret={})",
packet->status));
return -1;
}
// Releasing the packet, so it can be used in a next request.
client.release_packet(&packet);
if (ctx.size != 0) {
// Validate the accounts' pending and posted debits/credits:
tb::tb_account_t *results =
reinterpret_cast<tb::tb_account_t *>(ctx.reply.data());
int results_len = ctx.size / sizeof(tb::tb_account_t);
log.info(fmt::format("{} Account(s) found", results_len));
fmt::println("============================================");
for (int i = 0; i < results_len; i++) {
if (results[i].id == 1) {
assert(results[i].debits_posted == 100);
assert(results[i].credits_posted == 0);
assert(results[i].debits_pending == 1400);
assert(results[i].credits_pending == 0);
} else if (results[i].id == 2) {
assert(results[i].debits_posted == 0);
assert(results[i].credits_posted == 100);
assert(results[i].debits_pending == 0);
assert(results[i].credits_pending == 1400);
} else {
log.error(fmt::format("Unexpected account: {}", results[i].id));
return -1;
}
}
}
log.info("Multiple two-phase transfers completed successfully");
} catch (std::exception &e) {
log.error(fmt::format("Exception occurred: {}", e.what()));
return -1;
}
return 0;
}