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Merge pull request #1 from ishidawataru/mux

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add libtai-mux
This commit is contained in:
Scott Emery
2018-08-20 17:07:51 -07:00
committed by GitHub
parent 5f55526031 8621fffdd6
commit 6a7779be2e
19 changed files with 18774 additions and 0 deletions
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[submodule "tai_ac400/oopt-tai"]
path = tai_ac400/oopt-tai
url = https://github.com/Telecominfraproject/oopt-tai.git
[submodule "tai_mux/oopt-tai"]
path = tai_mux/oopt-tai
url = https://github.com/Telecominfraproject/oopt-tai.git

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tai_mux/.gitignore vendored Normal file
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*.so
test/test
build

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CC := g++
CFLAGS := -std=c++11 -fPIC
INCLUDES := -I ./oopt-tai/inc
BUILDDIR := build
SRCDIR := .
SRCEXT := cpp
SOURCES := $(shell ls $(SRCDIR)/*.cpp)
OBJECTS := $(patsubst $(SRCDIR)/%,$(BUILDDIR)/%,$(SOURCES:.$(SRCEXT)=.o))
TARGET := libtai-mux.so
all: $(TARGET)
$(TARGET): $(OBJECTS)
$(CC) $(CFLAGS) -shared $^ -o $@ -ldl -lpthread
$(BUILDDIR)/%.o: $(SRCDIR)/%.$(SRCEXT)
@mkdir -p $(BUILDDIR)
$(CC) $(CFLAGS) $(INCLUDES) -c -o $@ $<
clean:
-rm -r $(BUILDDIR) $(TARGET)

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MUX TAI implementation
===
MUX TAI library ( `libtai-mux.so` ) is a TAI library to multiplex multiple TAI
libraries. `libtai-mux.so` can be used for hardware which supports multiple
types of optical module which supports TAI. In such hardware, each optical module
vendors provides `libtai.so` for their modules. `libtai-mux.so` dynamically loads
these library and provides a single multiplexed TAI interface to TAI adapter host.
### platform adapter
Inside `libtai-mux.so`, platform adapter detects the presence of optical
modules and decides which `libtai.so` to use for detected modules.
`libtai-mux.so` has modular design to support various types of
platform adapter. User can choose which platform adapter to use by
passing an environment variable `TAI_MUX_PLATFORM_ADAPTER`.
Currently, only `static` platform adapter is supported.
#### static platform adapter
static platform adapter is a platform adapter which uses static configuration
for module detection and `libtai.so` loading.
Here is a sample configuration.
```json
{
"1": "libtai-a.so",
"2": "libtai-a.so",
"3": "libtai-a.so",
"4": "libtai-a.so",
"5": "libtai-b.so",
"6": "libtai-b.so",
"7": "libtai-b.so",
"8": "libtai-b.so"
}
```
The format is `json`. The key is the location of the module and the value is
the library to use for it.
By using the configuration above, `libtai-a.so` is used for modules
whose location is 1,2,3,4, and `libtai-b.so` is used for modules whose location
is 5,6,7,8.
An environment variable `TAI_MUX_STATIC_CONFIG_FILE` is used to let the
static platform adapter know the location of the configuration file.
### HOW TO BUILD
```
$ git submodule update --init
$ make
```
### HOW TO TEST
```
$ cd test
$ make
$ ./run.sh
```
### Licensing
`libtai-mux.so` is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.
external library `json.hpp` which is distributed under MIT License is used in `libtai-mux.so`

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#include "module_adapter.hpp"
#include <dlfcn.h>
#include <map>
#include <exception>
#include <sstream>
#define LOAD_TAI_API(name) \
m_ ## name = (name ## _fn) dlsym(m_dl, #name); \
if ( m_ ## name == nullptr ) { \
throw std::runtime_error( #name " undefined");\
}
ModuleAdapter::ModuleAdapter(const std::string& name, uint64_t flags, const tai_service_method_table_t* services) : m_name(name) {
m_dl = dlopen(name.c_str(), RTLD_NOW);
if ( m_dl == nullptr ) {
throw std::runtime_error(dlerror());
}
LOAD_TAI_API(tai_api_initialize)
LOAD_TAI_API(tai_api_uninitialize)
LOAD_TAI_API(tai_api_query)
LOAD_TAI_API(tai_log_set)
std::stringstream ss;
auto status = tai_api_initialize(flags, services);
if ( status != TAI_STATUS_SUCCESS ) {
ss << "failed to initialize " << name << ":" << status;
throw std::runtime_error(ss.str());
}
status = tai_api_query(TAI_API_MODULE, (void **)(&m_module_api));
if ( status != TAI_STATUS_SUCCESS ) {
ss << "failed to query TAI_API_MODULE :" << status;
throw std::runtime_error(ss.str());
}
status = tai_api_query(TAI_API_NETWORKIF, (void **)(&m_netif_api));
if ( status != TAI_STATUS_SUCCESS ) {
ss << "failed to query TAI_API_NETWORKIF:" << status;
throw std::runtime_error(ss.str());
}
status = tai_api_query(TAI_API_HOSTIF, (void **)(&m_hostif_api));
if ( status != TAI_STATUS_SUCCESS ) {
ss << "failed to query TAI_API_HOSTIF:" << status;
throw std::runtime_error(ss.str());
}
}
ModuleAdapter::~ModuleAdapter() {
dlclose(m_dl);
}
uint64_t ModuleAdapter::dl_address(const std::string& name) {
return (uint64_t)dlopen(name.c_str(), RTLD_NOW | RTLD_NOLOAD);
}

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#ifndef __MODULE_ADAPTER_HPP__
#define __MODULE_ADAPTER_HPP__
#include <string>
#include "tai.h"
typedef tai_status_t (*tai_api_initialize_fn) (uint64_t, const tai_service_method_table_t *);
typedef tai_status_t (*tai_api_uninitialize_fn) (void);
typedef tai_status_t (*tai_api_query_fn) (tai_api_t, void**);
typedef tai_status_t (*tai_log_set_fn) (tai_api_t, tai_log_level_t);
typedef tai_object_type_t (*tai_object_type_query_fn) (tai_object_id_t);
typedef tai_object_id_t (*tai_module_id_query_fn) (tai_object_id_t);
// corresponds to one dynamic library
class ModuleAdapter {
public:
ModuleAdapter(const std::string& name, uint64_t flags, const tai_service_method_table_t* services);
~ModuleAdapter();
static uint64_t dl_address(const std::string& name);
tai_status_t tai_api_initialize(uint64_t flags, const tai_service_method_table_t* services) {
return m_tai_api_initialize(flags, services);
}
tai_status_t tai_api_query(tai_api_t tai_api_id, void** api_method_table) {
return m_tai_api_query(tai_api_id, api_method_table);
}
tai_status_t tai_api_uninitialize(void) {
return m_tai_api_uninitialize();
}
tai_status_t tai_log_set(tai_api_t tai_api_id, tai_log_level_t log_level) {
return m_tai_log_set(tai_api_id, log_level);
}
tai_object_type_t tai_object_type_query(tai_object_id_t tai_object_id) {
return m_tai_object_type_query(tai_object_id);
}
tai_object_id_t tai_module_id_query(tai_object_id_t tai_object_id) {
return m_tai_module_id_query(tai_object_id);
}
tai_status_t create_module(
_Out_ tai_object_id_t *module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list,
_In_ tai_module_notification_t *notifications) {
if ( m_module_api == nullptr || m_module_api->create_module == nullptr ) {
return TAI_STATUS_FAILURE;
}
return m_module_api->create_module(module_id, attr_count, attr_list, notifications);
}
tai_status_t remove_module(
_In_ tai_object_id_t module_id) {
if ( m_module_api == nullptr || m_module_api->remove_module == nullptr ) {
return TAI_STATUS_FAILURE;
}
return m_module_api->remove_module(module_id);
}
tai_status_t set_module_attributes(
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list) {
if ( m_module_api == nullptr || m_module_api->set_module_attributes == nullptr ) {
return TAI_STATUS_FAILURE;
}
return m_module_api->set_module_attributes(module_id, attr_count, attr_list);
}
tai_status_t get_module_attributes(
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_In_ tai_attribute_t *attr_list) {
if ( m_module_api == nullptr || m_module_api->get_module_attributes == nullptr ) {
return TAI_STATUS_FAILURE;
}
return m_module_api->get_module_attributes(module_id, attr_count, attr_list);
}
tai_status_t create_network_interface(
_Out_ tai_object_id_t *network_interface_id,
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list) {
if ( m_netif_api == nullptr || m_netif_api->create_network_interface == nullptr ) {
return TAI_STATUS_FAILURE;
}
return m_netif_api->create_network_interface(network_interface_id, module_id, attr_count, attr_list);
}
tai_status_t remove_network_interface(
_In_ tai_object_id_t network_interface_id) {
if ( m_netif_api == nullptr || m_netif_api->remove_network_interface == nullptr ) {
return TAI_STATUS_FAILURE;
}
return m_netif_api->remove_network_interface(network_interface_id);
}
tai_status_t set_network_interface_attributes(
_In_ tai_object_id_t network_interface_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list) {
if ( m_netif_api == nullptr || m_netif_api->set_network_interface_attributes == nullptr ) {
return TAI_STATUS_FAILURE;
}
return m_netif_api->set_network_interface_attributes(network_interface_id, attr_count, attr_list);
}
tai_status_t get_network_interface_attributes(
_In_ tai_object_id_t network_interface_id,
_In_ uint32_t attr_count,
_In_ tai_attribute_t *attr_list) {
if ( m_netif_api == nullptr || m_netif_api->get_network_interface_attributes == nullptr ) {
return TAI_STATUS_FAILURE;
}
return m_netif_api->get_network_interface_attributes(network_interface_id, attr_count, attr_list);
}
tai_status_t create_host_interface(
_Out_ tai_object_id_t *host_interface_id,
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list) {
if ( m_hostif_api == nullptr || m_hostif_api->create_host_interface == nullptr ) {
return TAI_STATUS_FAILURE;
}
return m_hostif_api->create_host_interface(host_interface_id, module_id, attr_count, attr_list);
}
tai_status_t remove_host_interface(
_In_ tai_object_id_t host_interface_id) {
if ( m_hostif_api == nullptr || m_hostif_api->remove_host_interface == nullptr ) {
return TAI_STATUS_FAILURE;
}
return m_hostif_api->remove_host_interface(host_interface_id);
}
tai_status_t set_host_interface_attributes(
_In_ tai_object_id_t host_interface_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list) {
if ( m_hostif_api == nullptr || m_hostif_api->set_host_interface_attributes == nullptr ) {
return TAI_STATUS_FAILURE;
}
return m_hostif_api->set_host_interface_attributes(host_interface_id, attr_count, attr_list);
}
tai_status_t get_host_interface_attributes(
_In_ tai_object_id_t host_interface_id,
_In_ uint32_t attr_count,
_In_ tai_attribute_t *attr_list) {
if ( m_hostif_api == nullptr || m_hostif_api->get_host_interface_attributes == nullptr ) {
return TAI_STATUS_FAILURE;
}
return m_hostif_api->get_host_interface_attributes(host_interface_id, attr_count, attr_list);
}
private:
void* m_dl;
const std::string& m_name;
tai_api_initialize_fn m_tai_api_initialize;
tai_api_uninitialize_fn m_tai_api_uninitialize;
tai_api_query_fn m_tai_api_query;
tai_log_set_fn m_tai_log_set;
tai_object_type_query_fn m_tai_object_type_query;
tai_module_id_query_fn m_tai_module_id_query;
tai_module_api_t* m_module_api;
tai_host_interface_api_t* m_hostif_api;
tai_network_interface_api_t* m_netif_api;
};
#endif

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#include "mux.hpp"
Multiplexier *g_mux;
static const tai_attribute_value_t * find_attribute_in_list(
_In_ tai_attr_id_t attr_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list)
{
while (attr_count--) {
if (attr_list->id == attr_id) {
return &attr_list->value;
}
attr_list++;
}
return nullptr;
}
tai_status_t Multiplexier::create_host_interface(
_Out_ tai_object_id_t *host_interface_id,
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list) {
tai_object_id_t m_id;
ModuleAdapter *m_adapter;
if ( g_mux == nullptr ) {
return TAI_STATUS_UNINITIALIZED;
}
if ( g_mux->get_mapping(module_id, &m_adapter, &m_id) != 0 ) {
return TAI_STATUS_FAILURE;
}
tai_object_id_t id;
auto ret = m_adapter->create_host_interface(&id, m_id, attr_count, attr_list);
if ( ret != TAI_STATUS_SUCCESS ) {
return ret;
}
if ( g_mux->create_mapping(host_interface_id, m_adapter, id) != 0 ) {
return TAI_STATUS_FAILURE;
}
return TAI_STATUS_SUCCESS;
}
tai_status_t Multiplexier::remove_host_interface(
_In_ tai_object_id_t host_interface_id) {
tai_object_id_t id;
ModuleAdapter *m_adapter;
if ( g_mux == nullptr ) {
return TAI_STATUS_UNINITIALIZED;
}
if ( g_mux->get_mapping(host_interface_id, &m_adapter, &id) != 0 ) {
return TAI_STATUS_FAILURE;
}
auto ret = m_adapter->remove_host_interface(id);
if ( ret != TAI_STATUS_SUCCESS ) {
return ret;
}
if ( g_mux->remove_mapping(host_interface_id) != 0 ) {
return TAI_STATUS_FAILURE;
}
return TAI_STATUS_SUCCESS;
}
tai_status_t Multiplexier::set_host_interface_attributes(_In_ tai_object_id_t host_interface_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list) {
tai_object_id_t id;
ModuleAdapter *m_adapter;
if ( g_mux == nullptr ) {
return TAI_STATUS_UNINITIALIZED;
}
if ( g_mux->get_mapping(host_interface_id, &m_adapter, &id) != 0 ) {
return TAI_STATUS_FAILURE;
}
return m_adapter->set_host_interface_attributes(id, attr_count, attr_list);
}
tai_status_t Multiplexier::get_host_interface_attributes(_In_ tai_object_id_t host_interface_id,
_In_ uint32_t attr_count,
_Out_ tai_attribute_t *attr_list) {
tai_object_id_t id;
ModuleAdapter *m_adapter;
if ( g_mux == nullptr ) {
return TAI_STATUS_UNINITIALIZED;
}
if ( g_mux->get_mapping(host_interface_id, &m_adapter, &id) != 0 ) {
return TAI_STATUS_FAILURE;
}
return m_adapter->get_host_interface_attributes(id, attr_count, attr_list);
}
tai_status_t Multiplexier::create_network_interface(
_Out_ tai_object_id_t *network_interface_id,
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list) {
tai_object_id_t m_id;
ModuleAdapter *m_adapter;
if ( g_mux == nullptr ) {
return TAI_STATUS_UNINITIALIZED;
}
if ( g_mux->get_mapping(module_id, &m_adapter, &m_id) != 0 ) {
return TAI_STATUS_FAILURE;
}
tai_object_id_t id;
auto ret = m_adapter->create_network_interface(&id, m_id, attr_count, attr_list);
if ( ret != TAI_STATUS_SUCCESS ) {
return ret;
}
if ( g_mux->create_mapping(network_interface_id, m_adapter, id) != 0 ) {
return TAI_STATUS_FAILURE;
}
return TAI_STATUS_SUCCESS;
}
tai_status_t Multiplexier::remove_network_interface(
_In_ tai_object_id_t network_interface_id) {
tai_object_id_t id;
ModuleAdapter *m_adapter;
if ( g_mux == nullptr ) {
return TAI_STATUS_UNINITIALIZED;
}
if ( g_mux->get_mapping(network_interface_id, &m_adapter, &id) != 0 ) {
return TAI_STATUS_FAILURE;
}
auto ret = m_adapter->remove_network_interface(id);
if ( ret != TAI_STATUS_SUCCESS ) {
return ret;
}
if ( g_mux->remove_mapping(network_interface_id) != 0 ) {
return TAI_STATUS_FAILURE;
}
return TAI_STATUS_SUCCESS;
}
tai_status_t Multiplexier::set_network_interface_attributes(_In_ tai_object_id_t network_interface_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list) {
tai_object_id_t id;
ModuleAdapter *m_adapter;
if ( g_mux == nullptr ) {
return TAI_STATUS_UNINITIALIZED;
}
if ( g_mux->get_mapping(network_interface_id, &m_adapter, &id) != 0 ) {
return TAI_STATUS_FAILURE;
}
return m_adapter->set_network_interface_attributes(id, attr_count, attr_list);
}
tai_status_t Multiplexier::get_network_interface_attributes(_In_ tai_object_id_t network_interface_id,
_In_ uint32_t attr_count,
_Out_ tai_attribute_t *attr_list) {
tai_object_id_t id;
ModuleAdapter *m_adapter;
if ( g_mux == nullptr ) {
return TAI_STATUS_UNINITIALIZED;
}
if ( g_mux->get_mapping(network_interface_id, &m_adapter, &id) != 0 ) {
return TAI_STATUS_FAILURE;
}
return m_adapter->get_network_interface_attributes(id, attr_count, attr_list);
}
tai_status_t Multiplexier::create_module(
_Out_ tai_object_id_t *module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list,
_In_ tai_module_notification_t *notifications) {
if ( g_mux == nullptr ) {
return TAI_STATUS_UNINITIALIZED;
}
auto mod_addr = find_attribute_in_list(TAI_MODULE_ATTR_LOCATION, attr_count, attr_list);
if ( mod_addr == nullptr ) {
return TAI_STATUS_MANDATORY_ATTRIBUTE_MISSING;
}
const std::string location(mod_addr->charlist.list);
auto m_adapter = g_mux->get_module_adapter(location);
if ( m_adapter == nullptr ) {
return TAI_STATUS_FAILURE;
}
tai_object_id_t id;
auto ret = m_adapter->create_module(&id, attr_count, attr_list, notifications);
if ( ret != TAI_STATUS_SUCCESS ) {
return ret;
}
if ( g_mux->create_mapping(module_id, m_adapter, id) != 0 ) {
return TAI_STATUS_FAILURE;
}
return TAI_STATUS_SUCCESS;
}
tai_status_t Multiplexier::remove_module(_In_ tai_object_id_t module_id) {
tai_object_id_t id;
ModuleAdapter *m_adapter;
if ( g_mux == nullptr ) {
return TAI_STATUS_UNINITIALIZED;
}
if ( g_mux->get_mapping(module_id, &m_adapter, &id) != 0 ) {
return TAI_STATUS_FAILURE;
}
auto ret = m_adapter->remove_module(id);
if ( ret != TAI_STATUS_SUCCESS ) {
return ret;
}
if ( g_mux->remove_mapping(module_id) != 0 ) {
return TAI_STATUS_FAILURE;
}
return TAI_STATUS_SUCCESS;
}
tai_status_t Multiplexier::set_module_attributes(_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list) {
tai_object_id_t id;
ModuleAdapter *m_adapter;
if ( g_mux == nullptr ) {
return TAI_STATUS_UNINITIALIZED;
}
if ( g_mux->get_mapping(module_id, &m_adapter, &id) != 0 ) {
return TAI_STATUS_FAILURE;
}
return m_adapter->set_module_attributes(id, attr_count, attr_list);
}
tai_status_t Multiplexier::get_module_attributes(_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_Out_ tai_attribute_t *attr_list) {
tai_object_id_t id;
ModuleAdapter *m_adapter;
if ( g_mux == nullptr ) {
return TAI_STATUS_UNINITIALIZED;
}
if ( g_mux->get_mapping(module_id, &m_adapter, &id) != 0 ) {
return TAI_STATUS_FAILURE;
}
return m_adapter->get_module_attributes(id, attr_count, attr_list);
}
Multiplexier* create_mux(platform_adapter_t pa_kind, uint64_t flags, const tai_service_method_table_t* services) {
try {
return new Multiplexier(pa_kind, flags, services);
} catch (...) {
return nullptr;
}
}

148
tai_mux/mux.hpp Normal file
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#ifndef __MUX_HPP__
#define __MUX_HPP__
#include <string>
#include <exception>
#include "platform_adapter.hpp"
#include "static_platform_adapter.hpp"
#include "module_adapter.hpp"
#include "tai.h"
#include <sstream>
#include <bitset>
class OIDAllocator {
public:
tai_object_id_t next() {
for (int i = 0; i < 256; i++) {
if ( !m_bitset.test(i) ) {
m_bitset.set(i);
return tai_object_id_t(i);
}
}
throw std::runtime_error("OID max reach");
}
void free(tai_object_id_t oid) {
m_bitset.reset(oid);
}
private:
std::bitset<256> m_bitset;
};
// singleton
class Multiplexier {
public:
Multiplexier(platform_adapter_t pa_kind, uint64_t flags, const tai_service_method_table_t* services) {
switch ( pa_kind ) {
case PLATFORM_ADAPTER_STATIC:
m_pa = new StaticPlatformAdapter(flags, services);
break;
default:
std::stringstream ss;
ss << "unsupported platform_adapter :" << pa_kind;
throw std::runtime_error(ss.str());
}
}
~Multiplexier(){
if ( m_pa != nullptr ) {
delete m_pa;
}
}
ModuleAdapter * get_module_adapter(const std::string& location) {
return m_pa->get_module_adapter(location);
}
tai_status_t create_module(
_Out_ tai_object_id_t *module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list,
_In_ tai_module_notification_t *notifications);
tai_status_t remove_module(
_In_ tai_object_id_t module_id);
tai_status_t set_module_attributes(
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list);
tai_status_t get_module_attributes(
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_Out_ tai_attribute_t *attr_list);
tai_status_t create_network_interface(
_Out_ tai_object_id_t *network_interface_id,
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list);
tai_status_t remove_network_interface(
_In_ tai_object_id_t network_interface_id);
tai_status_t set_network_interface_attributes(
_In_ tai_object_id_t network_interface_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list);
tai_status_t get_network_interface_attributes(
_In_ tai_object_id_t network_interface_id,
_In_ uint32_t attr_count,
_Out_ tai_attribute_t *attr_list);
tai_status_t create_host_interface(
_Out_ tai_object_id_t *host_interface_id,
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list);
tai_status_t remove_host_interface(
_In_ tai_object_id_t host_interface_id);
tai_status_t set_host_interface_attributes(
_In_ tai_object_id_t host_interface_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list);
tai_status_t get_host_interface_attributes(
_In_ tai_object_id_t host_interface_id,
_In_ uint32_t attr_count,
_Out_ tai_attribute_t *attr_list);
private:
Multiplexier(const Multiplexier&){}
void operator = (const Multiplexier&){}
PlatformAdapter *m_pa;
std::map<tai_object_id_t, std::pair<tai_object_id_t, ModuleAdapter* >> m_map;
OIDAllocator m_oid_allocator;
int get_mapping(const tai_object_id_t& id, ModuleAdapter **adapter, tai_object_id_t *real_id) {
if ( m_map.find(id) == m_map.end() ) {
return -1;
}
auto pair = m_map[id];
*adapter = pair.second;
*real_id = pair.first;
return 0;
};
int create_mapping(tai_object_id_t *id, ModuleAdapter* adapter, const tai_object_id_t& real_id) {
auto value = std::pair<tai_object_id_t, ModuleAdapter*>(real_id, adapter);
*id = m_oid_allocator.next();
m_map[*id] = value;
return 0;
}
int remove_mapping(tai_object_id_t id) {
if ( m_map.find(id) == m_map.end() ) {
return 0;
}
m_map.erase(id);
m_oid_allocator.free(id);
return 0;
}
};
Multiplexier* create_mux(platform_adapter_t pa_kind, uint64_t flags, const tai_service_method_table_t* services);
#endif

1
tai_mux/oopt-tai Submodule

Submodule tai_mux/oopt-tai added at 865afb0201

22
tai_mux/platform_adapter.hpp Normal file
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#ifndef __PLATFORM_ADAPTER_HPP__
#define __PLATFORM_ADAPTER_HPP__
#include <string>
class ModuleAdapter;
enum platform_adapter_t {
PLATFORM_ADAPTER_UNKNOWN,
PLATFORM_ADAPTER_STATIC,
};
class PlatformAdapter {
public:
virtual ModuleAdapter* get_module_adapter(const std::string& location) = 0;
PlatformAdapter(){}
private:
PlatformAdapter(const PlatformAdapter&){}
void operator = (const PlatformAdapter&){}
};
#endif

44
tai_mux/static_platform_adapter.cpp Normal file
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#include "static_platform_adapter.hpp"
StaticPlatformAdapter::StaticPlatformAdapter(uint64_t flags, const tai_service_method_table_t* services) {
std::string config_file = TAI_MUX_STATIC_DEFAULT_CONFIG;
auto e = std::getenv(TAI_MUX_STATIC_CONFIG_FILE.c_str());
if ( e != nullptr ) {
config_file = e;
}
std::ifstream ifs(config_file);
if ( !ifs ) {
return;
}
std::istreambuf_iterator<char> it(ifs), last;
std::string config(it, last);
std::map<uint64_t, ModuleAdapter*> map;
auto c = json::parse(config);
for ( json::iterator it = c.begin(); it != c.end(); ++it ) {
auto location = it.key();
auto lib = it.value().get<std::string>();
auto dl = ModuleAdapter::dl_address(lib);
ModuleAdapter *ma = nullptr;
if ( dl == 0 ) {
ma = new ModuleAdapter(lib, flags, &m_services);
dl = ModuleAdapter::dl_address(lib);
map[dl] = ma;
} else {
ma = map[dl];
}
m_ma_map[location] = ma;
if ( services != nullptr && services->module_presence != nullptr ) {
services->module_presence(true, const_cast<char*>(location.c_str()));
}
}
}
StaticPlatformAdapter::~StaticPlatformAdapter() {
for ( auto& pair : m_ma_map ) {
delete pair.second;
}
}

33
tai_mux/static_platform_adapter.hpp Normal file
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#ifndef __STATIC_PLATFORM_ADAPTER_HPP__
#define __STATIC_PLATFORM_ADAPTER_HPP__
#include <thread>
#include <map>
#include <cstdlib>
#include <fstream>
#include <string>
#include "platform_adapter.hpp"
#include "module_adapter.hpp"
#include "tai.h"
#include "json.hpp"
using json = nlohmann::json;
const std::string TAI_MUX_STATIC_CONFIG_FILE = "TAI_MUX_STATIC_CONFIG_FILE";
const std::string TAI_MUX_STATIC_DEFAULT_CONFIG = "/etc/tai/mux/static.json";
class StaticPlatformAdapter : public PlatformAdapter {
public:
StaticPlatformAdapter(uint64_t flags, const tai_service_method_table_t* services);
~StaticPlatformAdapter();
ModuleAdapter* get_module_adapter(const std::string& location) {
return m_ma_map[location];
};
private:
std::map<std::string, ModuleAdapter*> m_ma_map;
std::thread m_th;
tai_service_method_table_t m_services;
};
#endif

225
tai_mux/tai.cpp Normal file
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#include "mux.hpp"
#include <cstdlib>
extern Multiplexier *g_mux;
const std::string PLATFORM_ADAPTER = "TAI_MUX_PLATFORM_ADAPTER";
#ifndef DEFAULT_PLATFORM_ADAPTER
#define DEFAULT_PLATFORM_ADAPTER "static"
#endif
tai_status_t tai_api_initialize(_In_ uint64_t flags,
_In_ const tai_service_method_table_t* services)
{
if ( g_mux != nullptr ) {
return TAI_STATUS_SUCCESS;
}
auto pa = std::getenv(PLATFORM_ADAPTER.c_str());
std::string pa_name;
if ( pa == nullptr ) {
pa_name = DEFAULT_PLATFORM_ADAPTER;
} else {
pa_name = std::string(pa);
}
platform_adapter_t pa_kind;
if ( pa_name == "static" ) {
pa_kind = PLATFORM_ADAPTER_STATIC;
}
g_mux = create_mux(pa_kind, flags, services);
if ( g_mux == nullptr ) {
return TAI_STATUS_FAILURE;
}
return TAI_STATUS_SUCCESS;
}
tai_status_t tai_api_uninitialize(void) {
if ( g_mux != nullptr ) {
delete g_mux;
g_mux = nullptr;
}
return TAI_STATUS_SUCCESS;
}
static tai_status_t mux_create_host_interface(
_Out_ tai_object_id_t *host_interface_id,
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list) {
return g_mux->create_host_interface(host_interface_id, module_id, attr_count, attr_list);
}
static tai_status_t mux_remove_host_interface(_In_ tai_object_id_t host_interface_id)
{
return g_mux->remove_host_interface(host_interface_id);
}
static tai_status_t mux_set_host_interface_attributes(
_In_ tai_object_id_t host_interface_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list)
{
return g_mux->set_host_interface_attributes(host_interface_id, attr_count, attr_list);
}
static tai_status_t mux_set_host_interface_attribute(
_In_ tai_object_id_t host_interface_id,
_In_ const tai_attribute_t *attr)
{
return g_mux->set_host_interface_attributes(host_interface_id, 1, attr);
}
static tai_status_t mux_get_host_interface_attributes(
_In_ tai_object_id_t host_interface_id,
_In_ uint32_t attr_count,
_Out_ tai_attribute_t *attr_list)
{
return g_mux->get_host_interface_attributes(host_interface_id, attr_count, attr_list);
}
static tai_status_t mux_get_host_interface_attribute(
_In_ tai_object_id_t host_interface_id,
_Out_ tai_attribute_t *attr)
{
return g_mux->get_host_interface_attributes(host_interface_id, 1, attr);
}
tai_host_interface_api_t mux_host_interface_api = {
.create_host_interface = mux_create_host_interface,
.remove_host_interface = mux_remove_host_interface,
.set_host_interface_attribute = mux_set_host_interface_attribute,
.set_host_interface_attributes = mux_set_host_interface_attributes,
.get_host_interface_attribute = mux_get_host_interface_attribute,
.get_host_interface_attributes = mux_get_host_interface_attributes
};
static tai_status_t mux_create_network_interface(
_Out_ tai_object_id_t *network_interface_id,
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list) {
return g_mux->create_network_interface(network_interface_id, module_id, attr_count, attr_list);
}
static tai_status_t mux_remove_network_interface(_In_ tai_object_id_t network_interface_id)
{
return g_mux->remove_network_interface(network_interface_id);
}
static tai_status_t mux_set_network_interface_attributes(
_In_ tai_object_id_t network_interface_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list)
{
return g_mux->set_network_interface_attributes(network_interface_id, attr_count, attr_list);
}
static tai_status_t mux_set_network_interface_attribute(
_In_ tai_object_id_t network_interface_id,
_In_ const tai_attribute_t *attr)
{
return g_mux->set_network_interface_attributes(network_interface_id, 1, attr);
}
static tai_status_t mux_get_network_interface_attributes(
_In_ tai_object_id_t network_interface_id,
_In_ uint32_t attr_count,
_Out_ tai_attribute_t *attr_list)
{
return g_mux->get_network_interface_attributes(network_interface_id, attr_count, attr_list);
}
static tai_status_t mux_get_network_interface_attribute(
_In_ tai_object_id_t network_interface_id,
_Out_ tai_attribute_t *attr)
{
return g_mux->get_network_interface_attributes(network_interface_id, 1, attr);
}
tai_network_interface_api_t mux_network_interface_api = {
.create_network_interface = mux_create_network_interface,
.remove_network_interface = mux_remove_network_interface,
.set_network_interface_attribute = mux_set_network_interface_attribute,
.set_network_interface_attributes = mux_set_network_interface_attributes,
.get_network_interface_attribute = mux_get_network_interface_attribute,
.get_network_interface_attributes = mux_get_network_interface_attributes
};
static tai_status_t mux_create_module(
_Out_ tai_object_id_t *module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list,
_In_ tai_module_notification_t *notifications)
{
return g_mux->create_module(module_id, attr_count, attr_list, notifications);
}
static tai_status_t mux_remove_module(_In_ tai_object_id_t module_id)
{
return g_mux->remove_module(module_id);
}
static tai_status_t mux_set_module_attributes(
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_In_ const tai_attribute_t *attr_list)
{
return g_mux->set_module_attributes(module_id, attr_count, attr_list);
}
static tai_status_t mux_set_module_attribute(
_In_ tai_object_id_t module_id,
_In_ const tai_attribute_t *attr)
{
return mux_set_module_attributes(module_id, 1, attr);
}
static tai_status_t mux_get_module_attributes(
_In_ tai_object_id_t module_id,
_In_ uint32_t attr_count,
_Out_ tai_attribute_t *attr_list)
{
return g_mux->get_module_attributes(module_id, attr_count, attr_list);
}
static tai_status_t mux_get_module_attribute(
_In_ tai_object_id_t module_id,
_Out_ tai_attribute_t *attr)
{
return mux_get_module_attributes(module_id, 1, attr);
}
tai_module_api_t mux_module_api = {
.create_module = mux_create_module,
.remove_module = mux_remove_module,
.set_module_attribute = mux_set_module_attribute,
.set_module_attributes = mux_set_module_attributes,
.get_module_attribute = mux_get_module_attribute,
.get_module_attributes = mux_get_module_attributes
};
tai_status_t tai_api_query(_In_ tai_api_t tai_api_id,
_Out_ void** api_method_table)
{
if ( api_method_table == nullptr ) {
return TAI_STATUS_INVALID_PARAMETER;
}
switch (tai_api_id) {
case TAI_API_MODULE:
*api_method_table = &mux_module_api;
break;
case TAI_API_HOSTIF:
*api_method_table = &mux_host_interface_api;
break;
case TAI_API_NETWORKIF:
*api_method_table = &mux_network_interface_api;
break;
default:
return TAI_STATUS_INVALID_PARAMETER;
}
return TAI_STATUS_SUCCESS;
}
tai_status_t tai_log_set(tai_api_t tai_api_id, tai_log_level_t log_level) {
return TAI_STATUS_SUCCESS;
}

16
tai_mux/test/Makefile Normal file
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CC := g++
CFLAGS := -std=c++11
INCLUDES := -I ../oopt-tai/inc
test: test.cpp libtai.so libtai-stub.so
$(CC) $(CFLAGS) $(INCLUDES) $^ -o $@ -L . -ltai
libtai.so:
ln -s ../libtai-mux.so $@
libtai-stub.so:
$(MAKE) -C ../oopt-tai/stub/
ln -s ../oopt-tai/stub/libtai.so $@
clean:
-rm test

3
tai_mux/test/run.sh Executable file
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#!/bin/sh
LD_LIBRARY_PATH=. TAI_MUX_PLATFORM_ADAPTER=static TAI_MUX_STATIC_CONFIG_FILE=./static.json $1 ./test

4
tai_mux/test/static.json Normal file
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{
"1": "libtai-stub.so",
"2": "libtai-stub.so"
}

183
tai_mux/test/test.cpp Normal file
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#include <thread>
#include <chrono>
#include <iostream>
#include <vector>
#include <thread>
#include <map>
#include <mutex>
#include <queue>
#include <sys/eventfd.h>
#include "unistd.h"
#include "tai.h"
tai_module_api_t *module_api;
tai_network_interface_api_t *netif_api;
tai_host_interface_api_t *hostif_api;
tai_module_notification_t notification = {0};
int fd;
std::queue<std::pair<bool, std::string>> q;
std::mutex m;
class module {
public:
module(tai_object_id_t id) : m_id(id) {
std::vector<tai_attribute_t> list;
tai_attribute_t attr;
attr.id = TAI_MODULE_ATTR_NUM_HOST_INTERFACES;
list.push_back(attr);
attr.id = TAI_MODULE_ATTR_NUM_NETWORK_INTERFACES;
list.push_back(attr);
auto status = module_api->get_module_attributes(id, list.size(), list.data());
if ( status != TAI_STATUS_SUCCESS ) {
throw std::runtime_error("faile to get attribute");
}
std::cout << "num hostif: " << list[0].value.u32 << std::endl;
std::cout << "num netif: " << list[1].value.u32 << std::endl;
create_hostif(list[0].value.u32);
create_netif(list[1].value.u32);
}
private:
tai_object_id_t m_id;
std::vector<tai_object_id_t> netifs;
std::vector<tai_object_id_t> hostifs;
int create_hostif(uint32_t num);
int create_netif(uint32_t num);
};
int module::create_netif(uint32_t num) {
for ( int i = 0; i < num; i++ ) {
tai_object_id_t id;
std::vector<tai_attribute_t> list;
tai_attribute_t attr;
attr.id = TAI_NETWORK_INTERFACE_ATTR_INDEX;
attr.value.u32 = i;
list.push_back(attr);
auto status = netif_api->create_network_interface(&id, m_id, list.size(), list.data());
if ( status != TAI_STATUS_SUCCESS ) {
throw std::runtime_error("failed to create network interface");
}
std::cout << "netif: " << id << std::endl;
netifs.push_back(id);
list.clear();
attr.id = TAI_NETWORK_INTERFACE_ATTR_TX_ENABLE;
attr.value.booldata = true;
list.push_back(attr);
attr.id = TAI_NETWORK_INTERFACE_ATTR_TX_CHANNEL;
attr.value.u16 = 10;
list.push_back(attr);
attr.id = TAI_NETWORK_INTERFACE_ATTR_TX_GRID_SPACING;
attr.value.u32 = TAI_NETWORK_INTERFACE_TX_GRID_SPACING_100_GHZ;
list.push_back(attr);
attr.id = TAI_NETWORK_INTERFACE_ATTR_MODULATION_FORMAT;
attr.value.u32 = TAI_NETWORK_INTERFACE_MODULATION_FORMAT_DP_16_QAM;
list.push_back(attr);
status = netif_api->set_network_interface_attributes(id, list.size(), list.data());
if ( status != TAI_STATUS_SUCCESS ) {
throw std::runtime_error("failed to set netif attribute");
}
}
return 0;
}
int module::create_hostif(uint32_t num) {
for ( int i = 0; i < num; i++ ) {
tai_object_id_t id;
std::vector<tai_attribute_t> list;
tai_attribute_t attr;
attr.id = TAI_HOST_INTERFACE_ATTR_INDEX;
attr.value.u32 = i;
list.push_back(attr);
auto status = hostif_api->create_host_interface(&id, m_id, list.size(), list.data());
if ( status != TAI_STATUS_SUCCESS ) {
throw std::runtime_error("failed to create host interface");
}
std::cout << "hostif: " << id << std::endl;
hostifs.push_back(id);
}
return 0;
}
std::map<tai_object_id_t, module*> modules;
void module_presence(bool present, char* location) {
uint64_t v;
std::lock_guard<std::mutex> g(m);
q.push(std::pair<bool, std::string>(present, std::string(location)));
write(fd, &v, sizeof(uint64_t));
}
tai_status_t create_module(const std::string& location, tai_object_id_t& m_id) {
std::vector<tai_attribute_t> list;
tai_attribute_t attr;
attr.id = TAI_MODULE_ATTR_LOCATION;
attr.value.charlist.count = location.size();
attr.value.charlist.list = (char*)location.c_str();
list.push_back(attr);
return module_api->create_module(&m_id, list.size(), list.data(), &notification);
}
int main() {
tai_log_set(tai_api_t(0), TAI_LOG_LEVEL_INFO);
tai_service_method_table_t services;
fd = eventfd(0, 0);
services.module_presence = module_presence;
auto status = tai_api_initialize(0, &services);
if ( status != TAI_STATUS_SUCCESS ) {
std::cout << "failed to init" << std::endl;
return 1;
}
status = tai_api_query(TAI_API_MODULE, (void **)(&module_api));
if ( status != TAI_STATUS_SUCCESS ) {
return 1;
}
status = tai_api_query(TAI_API_NETWORKIF, (void **)(&netif_api));
if ( status != TAI_STATUS_SUCCESS ) {
return 1;
}
status = tai_api_query(TAI_API_HOSTIF, (void **)(&hostif_api));
if ( status != TAI_STATUS_SUCCESS ) {
return 1;
}
while (true) {
uint64_t v;
read(fd, &v, sizeof(uint64_t));
{
std::lock_guard<std::mutex> g(m);
while ( ! q.empty() ) {
auto p = q.front();
std::cout << "present: " << p.first << ", loc: " << p.second << std::endl;
if ( p.first ) {
tai_object_id_t m_id = 0;
status = create_module(p.second, m_id);
if ( status != TAI_STATUS_SUCCESS ) {
std::cerr << "failed to create module: " << status << std::endl;
return 1;
}
std::cout << "module id: " << m_id << std::endl;
modules[m_id] = new module(m_id);
}
q.pop();
}
}
}
}