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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <inttypes.h>
#include <malloc.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/param.h>
#include <time.h>
#include <new>
#include "Action.h"
#include "Threads.h"
#include "Pointers.h"
static uint64_t nanotime() {
struct timespec t;
t.tv_sec = t.tv_nsec = 0;
clock_gettime(CLOCK_MONOTONIC, &t);
return static_cast<uint64_t>(t.tv_sec) * 1000000000LL + t.tv_nsec;
}
class EndThreadAction : public Action {
public:
EndThreadAction() {}
bool EndThread() override { return true; }
uint64_t Execute(Pointers*) override { return 0; }
};
class AllocAction : public Action {
public:
explicit AllocAction(uintptr_t key_pointer) : key_pointer_(key_pointer) {}
protected:
uintptr_t key_pointer_ = 0;
size_t size_ = 0;
};
class MallocAction : public AllocAction {
public:
MallocAction(uintptr_t key_pointer, const char* line) : AllocAction(key_pointer) {
if (sscanf(line, "%zu", &size_) != 1) {
is_error_ = true;
}
}
uint64_t Execute(Pointers* pointers) override {
uint64_t time_nsecs = nanotime();
void* memory = malloc(size_);
time_nsecs = nanotime() - time_nsecs;
memset(memory, 1, size_);
pointers->Add(key_pointer_, memory);
return time_nsecs;
}
};
class CallocAction : public AllocAction {
public:
CallocAction(uintptr_t key_pointer, const char* line) : AllocAction(key_pointer) {
if (sscanf(line, "%zu %zu", &n_elements_, &size_) != 2) {
is_error_ = true;
}
}
uint64_t Execute(Pointers* pointers) override {
uint64_t time_nsecs = nanotime();
void* memory = calloc(n_elements_, size_);
time_nsecs = nanotime() - time_nsecs;
memset(memory, 0, n_elements_ * size_);
pointers->Add(key_pointer_, memory);
return time_nsecs;
}
private:
size_t n_elements_ = 0;
};
class ReallocAction : public AllocAction {
public:
ReallocAction(uintptr_t key_pointer, const char* line) : AllocAction(key_pointer) {
if (sscanf(line, "%" SCNxPTR " %zu", &old_pointer_, &size_) != 2) {
is_error_ = true;
}
}
bool DoesFree() override { return old_pointer_ != 0; }
uint64_t Execute(Pointers* pointers) override {
void* old_memory = nullptr;
if (old_pointer_ != 0) {
old_memory = pointers->Remove(old_pointer_);
}
uint64_t time_nsecs = nanotime();
void* memory = realloc(old_memory, size_);
time_nsecs = nanotime() - time_nsecs;
memset(memory, 1, size_);
pointers->Add(key_pointer_, memory);
return time_nsecs;
}
private:
uintptr_t old_pointer_ = 0;
};
class MemalignAction : public AllocAction {
public:
MemalignAction(uintptr_t key_pointer, const char* line) : AllocAction(key_pointer) {
if (sscanf(line, "%zu %zu", &align_, &size_) != 2) {
is_error_ = true;
}
}
uint64_t Execute(Pointers* pointers) override {
uint64_t time_nsecs = nanotime();
void* memory = memalign(align_, size_);
time_nsecs = nanotime() - time_nsecs;
memset(memory, 1, size_);
pointers->Add(key_pointer_, memory);
return time_nsecs;
}
private:
size_t align_ = 0;
};
class FreeAction : public AllocAction {
public:
explicit FreeAction(uintptr_t key_pointer) : AllocAction(key_pointer) {
}
bool DoesFree() override { return key_pointer_ != 0; }
uint64_t Execute(Pointers* pointers) override {
if (key_pointer_) {
void* memory = pointers->Remove(key_pointer_);
uint64_t time_nsecs = nanotime();
free(memory);
return nanotime() - time_nsecs;
}
return 0;
}
};
size_t Action::MaxActionSize() {
size_t max = MAX(sizeof(EndThreadAction), sizeof(MallocAction));
max = MAX(max, sizeof(CallocAction));
max = MAX(max, sizeof(ReallocAction));
max = MAX(max, sizeof(MemalignAction));
return MAX(max, sizeof(FreeAction));
}
Action* Action::CreateAction(uintptr_t key_pointer, const char* type,
const char* line, void* action_memory) {
Action* action = nullptr;
if (strcmp(type, "malloc") == 0) {
action = new (action_memory) MallocAction(key_pointer, line);
} else if (strcmp(type, "free") == 0) {
action = new (action_memory) FreeAction(key_pointer);
} else if (strcmp(type, "calloc") == 0) {
action = new (action_memory) CallocAction(key_pointer, line);
} else if (strcmp(type, "realloc") == 0) {
action = new (action_memory) ReallocAction(key_pointer, line);
} else if (strcmp(type, "memalign") == 0) {
action = new (action_memory) MemalignAction(key_pointer, line);
} else if (strcmp(type, "thread_done") == 0) {
action = new (action_memory) EndThreadAction();
}
if (action == nullptr || action->IsError()) {
return nullptr;
}
return action;
}
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