-
-
Notifications
You must be signed in to change notification settings - Fork 422
/
receiver_putva.hpp
201 lines (187 loc) · 7.67 KB
/
receiver_putva.hpp
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
// Copyright (c) 2023-2024 Jiakun Yan
// Copyright (c) 2007-2023 Hartmut Kaiser
// Copyright (c) 2014-2015 Thomas Heller
//
// SPDX-License-Identifier: BSL-1.0
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#pragma once
#include <hpx/config.hpp>
#if defined(HPX_HAVE_NETWORKING) && defined(HPX_HAVE_PARCELPORT_LCI)
#include <hpx/assert.hpp>
#include <hpx/parcelport_lci/receiver_base.hpp>
#include <hpx/parcelset/decode_parcels.hpp>
#include <algorithm>
#include <cstddef>
#include <cstring>
#include <deque>
#include <iterator>
#include <list>
#include <memory>
#include <mutex>
#include <set>
#include <utility>
#include <vector>
namespace hpx::parcelset::policies::lci {
struct receiver_putva : public receiver_base
{
explicit receiver_putva(parcelport* pp) noexcept
: receiver_base(pp)
{
}
bool background_work() noexcept
{
bool did_some_work = false;
auto poll_comp_start = util::lci_environment::pcounter_now();
auto completion_manager_p =
pp_->get_tls_device().completion_manager_p;
request_wrapper_t request;
request.request = completion_manager_p->recv_new->poll();
util::lci_environment::pcounter_add(
util::lci_environment::poll_comp,
util::lci_environment::pcounter_since(poll_comp_start));
if (request.request.flag == LCI_OK)
{
auto useful_bg_start = util::lci_environment::pcounter_now();
HPX_ASSERT(request.request.flag == LCI_OK);
process_request(request.request);
util::lci_environment::pcounter_add(
util::lci_environment::useful_bg_work,
util::lci_environment::pcounter_since(useful_bg_start));
did_some_work = true;
}
return did_some_work;
}
private:
void process_request(LCI_request_t request)
{
if (request.type == LCI_MEDIUM)
{
size_t consumed = 0;
while (consumed < request.data.mbuffer.length)
{
buffer_type buffer;
consumed += decode_eager(
(char*) request.data.mbuffer.address + consumed,
buffer);
handle_received_parcels(
decode_parcels(*pp_, HPX_MOVE(buffer)));
}
HPX_ASSERT(consumed == request.data.mbuffer.length);
}
else
{
// iovec
HPX_ASSERT(request.type == LCI_IOVEC);
buffer_type buffer;
decode_iovec(request.data.iovec, buffer);
handle_received_parcels(decode_parcels(*pp_, HPX_MOVE(buffer)));
}
}
size_t decode_eager(void* address, buffer_type& buffer)
{
#if defined(HPX_HAVE_PARCELPORT_COUNTERS)
hpx::chrono::high_resolution_timer timer_;
parcelset::data_point& data = buffer.data_point_;
#endif
util::lci_environment::pcounter_add(
util::lci_environment::recv_conn_start, 1);
// decode header
header header_ = header((char*) address);
header_.assert_valid();
HPX_ASSERT(
header_.piggy_back_data() && !header_.piggy_back_tchunk());
HPX_ASSERT(header_.num_zero_copy_chunks() == 0); // decode data
// decode data
buffer.data_.length = header_.numbytes_nonzero_copy();
buffer.data_.ptr = header_.piggy_back_data();
// decode transmission chunk
int num_zero_copy_chunks = header_.num_zero_copy_chunks();
int num_non_zero_copy_chunks = header_.num_non_zero_copy_chunks();
buffer.num_chunks_.first = num_zero_copy_chunks;
buffer.num_chunks_.second = num_non_zero_copy_chunks;
util::lci_environment::pcounter_add(
util::lci_environment::recv_conn_end, 1);
#if defined(HPX_HAVE_PARCELPORT_COUNTERS)
data.bytes_ = static_cast<std::size_t>(header_.numbytes());
data.time_ = timer_.elapsed_nanoseconds() - data.time_;
#endif
return header_.size();
}
void decode_iovec(LCI_iovec_t iovec, buffer_type& buffer)
{
#if defined(HPX_HAVE_PARCELPORT_COUNTERS)
hpx::chrono::high_resolution_timer timer_;
parcelset::data_point& data = buffer.data_point_;
data.time_ = timer_.elapsed_nanoseconds();
#endif
util::lci_environment::pcounter_add(
util::lci_environment::recv_conn_start, 1);
// decode header
header header_ = header((char*) iovec.piggy_back.address);
header_.assert_valid();
int i = 0;
// decode data
char* piggy_back_data = header_.piggy_back_data();
if (piggy_back_data)
{
buffer.data_.length = header_.numbytes_nonzero_copy();
buffer.data_.ptr = piggy_back_data;
}
else
{
HPX_ASSERT((size_t) header_.numbytes_nonzero_copy() ==
iovec.lbuffers[i].length);
buffer.data_.length = header_.numbytes_nonzero_copy();
buffer.data_.ptr = iovec.lbuffers[i].address;
++i;
}
if (header_.num_zero_copy_chunks() != 0)
{
// decode transmission chunk
int num_zero_copy_chunks = header_.num_zero_copy_chunks();
int num_non_zero_copy_chunks =
header_.num_non_zero_copy_chunks();
buffer.num_chunks_.first = num_zero_copy_chunks;
buffer.num_chunks_.second = num_non_zero_copy_chunks;
auto& tchunks = buffer.transmission_chunks_;
tchunks.resize(num_zero_copy_chunks + num_non_zero_copy_chunks);
int tchunks_length = static_cast<int>(tchunks.size() *
sizeof(buffer_type::transmission_chunk_type));
char* piggy_back_tchunk = header_.piggy_back_tchunk();
if (piggy_back_tchunk)
{
std::memcpy((void*) tchunks.data(), piggy_back_tchunk,
tchunks_length);
}
else
{
HPX_ASSERT(
(size_t) tchunks_length == iovec.lbuffers[i].length);
std::memcpy((void*) tchunks.data(),
iovec.lbuffers[i].address, tchunks_length);
++i;
}
// zero-copy chunks
buffer.chunks_.resize(num_zero_copy_chunks);
for (int j = 0; j < num_zero_copy_chunks; ++j)
{
std::size_t chunk_size =
buffer.transmission_chunks_[j].second;
HPX_ASSERT(iovec.lbuffers[i].length == chunk_size);
buffer.chunks_[j] = serialization::create_pointer_chunk(
iovec.lbuffers[i].address, chunk_size);
++i;
}
}
HPX_ASSERT(i == iovec.count);
util::lci_environment::pcounter_add(
util::lci_environment::recv_conn_end, 1);
#if defined(HPX_HAVE_PARCELPORT_COUNTERS)
data.bytes_ = static_cast<std::size_t>(header_.numbytes());
data.time_ = timer_.elapsed_nanoseconds();
#endif
}
};
} // namespace hpx::parcelset::policies::lci
#endif