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Rename NetworkModelIntf into NetworkModelFactors
[simgrid.git] / src / kernel / resource / NetworkModelFactors.cpp
1 /* Copyright (c) 2013-2022. The SimGrid Team. All rights reserved.          */
2
3 /* This program is free software; you can redistribute it and/or modify it
4  * under the terms of the license (GNU LGPL) which comes with this package. */
5
6 #include "src/kernel/resource/NetworkModelFactors.hpp"
7 #include "simgrid/sg_config.hpp"
8 #include "src/kernel/resource/FactorSet.hpp"
9
10 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(res_network);
11
12 /*********
13  * Model *
14  *********/
15
16 namespace simgrid::kernel::resource {
17 #if 0
18 static FactorSet cfg_latency_factor("network/latency-factor");
19 static FactorSet cfg_bandwidth_factor("network/bandwidth-factor");
20
21 config::Flag<std::string> cfg_latency_factor_str(
22     "network/latency-factor", std::initializer_list<const char*>{"smpi/lat-factor"},
23     "Correction factor to apply to the provided latency (default value overridden by network model)", "1.0");
24 static config::Flag<std::string> cfg_bandwidth_factor_str(
25     "network/bandwidth-factor", std::initializer_list<const char*>{"smpi/bw-factor"},
26     "Correction factor to apply to the provided bandwidth (default value overridden by network model)", "1.0");
27
28 double NetworkModelFactors::get_latency_factor()
29 {
30   xbt_assert(not lat_factor_cb_,
31              "Cannot access the global latency factor since a callback is used. Please go for the advanced API.");
32
33   if (not cfg_latency_factor.is_initialized()) // lazy initiaization to avoid initialization fiasco
34     cfg_latency_factor.parse(cfg_latency_factor_str.get());
35
36   return cfg_latency_factor(0);
37 }
38
39 double NetworkModelFactors::get_latency_factor(double size, const s4u::Host* src, const s4u::Host* dst,
40                                                const std::vector<s4u::Link*>& links,
41                                                const std::unordered_set<s4u::NetZone*>& netzones)
42 {
43   if (lat_factor_cb_)
44     return lat_factor_cb_(size, src, dst, links, netzones);
45
46   if (not cfg_latency_factor.is_initialized()) // lazy initiaization to avoid initialization fiasco
47     cfg_latency_factor.parse(cfg_latency_factor_str.get());
48
49   return cfg_latency_factor(size);
50 }
51 double NetworkModelFactors::get_bandwidth_factor()
52 {
53   xbt_assert(not bw_factor_cb_,
54              "Cannot access the global bandwidth factor since a callback is used. Please go for the advanced API.");
55
56   if (not cfg_bandwidth_factor.is_initialized())
57     cfg_bandwidth_factor.parse(cfg_bandwidth_factor_str.get());
58
59   return cfg_bandwidth_factor(0);
60 }
61
62 double NetworkModelFactors::get_bandwidth_factor(double size, const s4u::Host* src, const s4u::Host* dst,
63                                                  const std::vector<s4u::Link*>& links,
64                                                  const std::unordered_set<s4u::NetZone*>& netzones)
65 {
66   if (bw_factor_cb_)
67     return bw_factor_cb_(size, src, dst, links, netzones);
68
69   if (not cfg_bandwidth_factor.is_initialized())
70     cfg_bandwidth_factor.parse(cfg_bandwidth_factor_str.get());
71
72   return cfg_bandwidth_factor(size);
73 }
74 #endif
75
76 void NetworkModelFactors::set_lat_factor_cb(const std::function<NetworkFactorCb>& cb)
77 {
78   if (not cb)
79     throw std::invalid_argument("NetworkModelFactors: Invalid callback");
80   if (not simgrid::config::is_default("network/latency-factor"))
81     throw std::invalid_argument("You must choose between network/latency-factor and callback configuration.");
82
83   lat_factor_cb_ = cb;
84 }
85
86 void NetworkModelFactors::set_bw_factor_cb(const std::function<NetworkFactorCb>& cb)
87 {
88   if (not cb)
89     throw std::invalid_argument("NetworkModelFactors: Invalid callback");
90   if (not simgrid::config::is_default("network/bandwidth-factor"))
91     throw std::invalid_argument("You must choose between network/bandwidth-factor and callback configuration.");
92
93   bw_factor_cb_ = cb;
94 }
95
96 } // namespace simgrid::kernel::resource