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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <pthread.h>
#include <signal.h>
#include <limits.h>
#include <sys/mman.h>
#define FILE_DESC_COUNT 500
#define THREAD_COUNT 100
void* dFunc(int type)
{
if(type == 0)
{
char* alloc = malloc(10000);
for(int i=0; i<10000; i++)
{
alloc[i] = 'a';
}
mlock(alloc, 10000);
return alloc;
}
else if (type == 1)
{
char* callocAlloc = calloc(1, 10000);
mlock(callocAlloc, 10000);
return callocAlloc;
}
else if (type == 2)
{
void* lastAlloc = malloc(10000);
void* newAlloc = realloc(lastAlloc, 20000);
for(int i=0; i<20000; i++)
{
((char*)newAlloc)[i] = 'a';
}
mlock(newAlloc, 20000);
return newAlloc;
}
else if (type == 3)
{
#ifdef __linux__
void* lastAlloc = malloc(10000);
void* newAlloc = reallocarray(lastAlloc, 10, 20000);
return newAlloc;
#endif
return NULL;
}
else
{
return NULL;
}
}
void* c(int type)
{
return dFunc(type);
}
void* b(int type)
{
return c(type);
}
void* a(int type)
{
return b(type);
}
void* ThreadProc(void *input)
{
sleep(UINT_MAX);
return NULL;
};
int main(int argc, char *argv[])
{
if (argc > 1)
{
//
// To avoid timing differences, each test below should sleep indefinately once done.
// The process will be killed by the test harness once procdump has finished monitoring
//
if (strcmp("sleep", argv[1]) == 0)
{
sleep(UINT_MAX);
}
else if (strcmp("burn", argv[1]) == 0)
{
while(1);
}
else if (strcmp("fc", argv[1]) == 0)
{
FILE* fd[FILE_DESC_COUNT];
for(int i=0; i<FILE_DESC_COUNT; i++)
{
fd[i] = fopen(argv[0], "r");
}
memset(fd, 0, FILE_DESC_COUNT*sizeof(FILE*));
sleep(UINT_MAX);
}
else if (strcmp("tc", argv[1]) == 0)
{
pthread_t threads[THREAD_COUNT];
for(int i=0; i<THREAD_COUNT; i++)
{
pthread_create(&threads[i], NULL, ThreadProc, NULL);
}
sleep(UINT_MAX);
}
else if (strcmp("mem", argv[1]) == 0)
{
sleep(10);
for(int i=0; i<1000; i++)
{
a(0);
a(1);
a(2);
a(3);
}
sleep(UINT_MAX);
}
}
}
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