127 lines
4.1 KiB
C++
127 lines
4.1 KiB
C++
#ifdef MTK_SF_PERF_API
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#include "SFPerfAPILoader.h"
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#include <cinttypes>
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#include <cstring>
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#include <dlfcn.h>
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#include <log/log.h>
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#include <errno.h>
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#include "SFPerfAPILoader.h"
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namespace android {
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#undef LOG_TAG
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#define LOG_TAG "SFPerfAPILoader"
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SFPerfAPILoader& SFPerfAPILoader::getInstance() {
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static SFPerfAPILoader gInstance;
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return gInstance;
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}
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SFPerfAPILoader::SFPerfAPILoader():
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m_so_handle(nullptr),
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mPerfHelper(nullptr),
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mFnDestroyPerfHelper(nullptr),
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mFnSetUclampMin(nullptr),
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mFnSetTaskUclamp(nullptr),
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mFnAddThreadtoCgroup(nullptr)
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{
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m_so_handle = dlopen("libsf_perf.so", RTLD_LAZY);
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if (m_so_handle) {
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createPerfHelperFn createPtr = reinterpret_cast<createPerfHelperFn>(dlsym(m_so_handle, "createPerfHelper"));
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if (createPtr) {
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mPerfHelper = createPtr();
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if (!mPerfHelper) {
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ALOGE("Failed to create PerfHelper");
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} else {
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ALOGV("SFPerfAPILoader created PerfHelper");
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}
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} else {
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ALOGE("Failed to get function: createPerfHelper");
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}
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mFnDestroyPerfHelper = reinterpret_cast<DestroyPerfHelperFn>(dlsym(m_so_handle, "destroyPerfHelper"));
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if (!mFnDestroyPerfHelper) {
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ALOGE("Failed to get function: destroyPerfHelper");
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}
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mFnSetUclampMin = reinterpret_cast<SetUclampMinFn>(dlsym(m_so_handle, "setUclampMin"));
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if (mFnSetUclampMin == nullptr) {
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ALOGE("Failed to get function: setUclampMin");
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} else {
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ALOGV("set mFnSetUclampMin %p", mFnSetUclampMin);
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}
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mFnSetTaskUclamp = reinterpret_cast<SetTaskUclampFn>(dlsym(m_so_handle, "setTaskUclamp"));
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if (mFnSetTaskUclamp == nullptr) {
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ALOGE("Failed to get function: setTaskUclamp");
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} else {
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ALOGV("set mFnSetTaskUclamp %p", mFnSetTaskUclamp);
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}
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mFnAddThreadtoCgroup = reinterpret_cast<AddThreadtoCgroupFn>(dlsym(m_so_handle, "addThreadtoCgroup"));
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if (mFnAddThreadtoCgroup == nullptr) {
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ALOGE("Failed to get function: addThreadtoCgroup");
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} else {
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ALOGV("set mFnAddThreadtoCgroup %p", mFnAddThreadtoCgroup);
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}
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} else {
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ALOGE("Failed to load libsf_perf.so");
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}
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}
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SFPerfAPILoader::~SFPerfAPILoader() {
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if (mPerfHelper && mFnDestroyPerfHelper) {
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mFnDestroyPerfHelper(mPerfHelper);
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mPerfHelper = NULL;
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mFnDestroyPerfHelper = NULL;
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}
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if (m_so_handle) {
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dlclose(m_so_handle);
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m_so_handle = NULL;
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}
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}
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int SFPerfAPILoader::perfUclampMinRequest(pid_t pid, int uClampMin) {
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if (!mPerfHelper) {
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ALOGE("perfUclampMinRequest mPerfHelper NULL");
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errno = EINVAL;
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return -1;
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}
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if (mFnSetUclampMin == nullptr) {
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ALOGE("perfUclampMinRequest mFnSetUclampMin NULL");
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errno = EINVAL;
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return -1;
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}
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ALOGI("perfUclampMinRequest uclamp min %d", uClampMin);
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return mFnSetUclampMin(mPerfHelper, pid, (uClampMin*100)/1024);
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}
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int SFPerfAPILoader::perfTaskUclampRequest(int uClampMin, int uClampMax) {
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if (!mPerfHelper) {
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ALOGE("perfTaskUclampRequest mPerfHelper NULL");
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errno = EINVAL;
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return -1;
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}
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if (mFnSetTaskUclamp == nullptr) {
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ALOGE("perfTaskUclampRequest mFnSetTaskUclamp NULL");
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errno = EINVAL;
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return -1;
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}
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ALOGV("perfTaskUclampRequest uclamp min %d, uclamp max %d", uClampMin, uClampMax);
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return mFnSetTaskUclamp(mPerfHelper, (uClampMin*100)/1024, (uClampMax*100)/1024);
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}
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int SFPerfAPILoader::perfAddThreadRequest(pid_t pid) {
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if (!mPerfHelper) {
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ALOGE("perfAddThreadRequest mPerfHelper NULL");
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errno = EINVAL;
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return -1;
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}
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if (mFnAddThreadtoCgroup == nullptr) {
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ALOGE("perfAddPidtoCgroup mFnAddThreadtoCgroup NULL");
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errno = EINVAL;
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return -1;
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}
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return mFnAddThreadtoCgroup(mPerfHelper, pid);
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}
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} // namespace android
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#endif
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