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#include "mman.h"
#include <errno.h>
#include <fcntl.h>
#include <sys/stat.h>
#ifndef NULL
#define NULL (void*)0
#endif
const char* map_file_name = "map_file.dat";
int test_anon_map_readwrite()
{
void* map = mmap(NULL, 1024, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if (map == MAP_FAILED)
{
printf("mmap (MAP_ANONYMOUS, PROT_READ | PROT_WRITE) returned unexpected error: %d\n", errno);
return -1;
}
*((unsigned char*)map) = 1;
int result = munmap(map, 1024);
if (result != 0)
printf("munmap (MAP_ANONYMOUS, PROT_READ | PROT_WRITE) returned unexpected error: %d\n", errno);
return result;
}
int test_anon_map_readonly()
{
void* map = mmap(NULL, 1024, PROT_READ,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if (map == MAP_FAILED)
{
printf("mmap (MAP_ANONYMOUS, PROT_READ) returned unexpected error: %d\n", errno);
return -1;
}
*((unsigned char*)map) = 1;
int result = munmap(map, 1024);
if (result != 0)
printf("munmap (MAP_ANONYMOUS, PROT_READ) returned unexpected error: %d\n", errno);
return result;
}
int test_anon_map_writeonly()
{
void* map = mmap(NULL, 1024, PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if (map == MAP_FAILED)
{
printf("mmap (MAP_ANONYMOUS, PROT_WRITE) returned unexpected error: %d\n", errno);
return -1;
}
*((unsigned char*)map) = 1;
int result = munmap(map, 1024);
if (result != 0)
printf("munmap (MAP_ANONYMOUS, PROT_WRITE) returned unexpected error: %d\n", errno);
return result;
}
int test_anon_map_readonly_nowrite()
{
void* map = mmap(NULL, 1024, PROT_READ,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if (map == MAP_FAILED)
{
printf("mmap (MAP_ANONYMOUS, PROT_READ) returned unexpected error: %d\n", errno);
return -1;
}
if (*((unsigned char*)map) != 0)
printf("test_anon_map_readonly_nowrite (MAP_ANONYMOUS, PROT_READ) returned unexpected value: %d\n",
(int)*((unsigned char*)map));
int result = munmap(map, 1024);
if (result != 0)
printf("munmap (MAP_ANONYMOUS, PROT_READ) returned unexpected error: %d\n", errno);
return result;
}
int test_file_map_readwrite()
{
mode_t mode = S_IRUSR | S_IWUSR;
int o = open(map_file_name, O_TRUNC | O_BINARY | O_RDWR | O_CREAT, mode);
void* map = mmap(NULL, 1024, PROT_READ | PROT_WRITE, MAP_PRIVATE, o, 0);
if (map == MAP_FAILED)
{
printf("mmap returned unexpected error: %d\n", errno);
return -1;
}
*((unsigned char*)map) = 1;
int result = munmap(map, 1024);
if (result != 0)
printf("munmap returned unexpected error: %d\n", errno);
close(o);
/*TODO: get file info and content and compare it with the sources conditions */
unlink(map_file_name);
return result;
}
int test_file_map_mlock_munlock()
{
const size_t map_size = 1024;
int result = 0;
mode_t mode = S_IRUSR | S_IWUSR;
int o = open(map_file_name, O_TRUNC | O_BINARY | O_RDWR | O_CREAT, mode);
if (o == -1)
{
printf("unable to create file %s: %d\n", map_file_name, errno);
return -1;
}
void* map = mmap(NULL, map_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, o, 0);
if (map == MAP_FAILED)
{
printf("mmap returned unexpected error: %d\n", errno);
result = -1;
goto done_close;
}
if (mlock(map, map_size) != 0)
{
printf("mlock returned unexpected error: %d\n", errno);
result = -1;
goto done_munmap;
}
*((unsigned char*)map) = 1;
if (munlock(map, map_size) != 0)
{
printf("munlock returned unexpected error: %d\n", errno);
result = -1;
}
done_munmap:
result = munmap(map, map_size);
if (result != 0)
printf("munmap returned unexpected error: %d\n", errno);
done_close:
close(o);
unlink(map_file_name);
done:
return result;
}
int test_file_map_msync()
{
const size_t map_size = 1024;
int result = 0;
mode_t mode = S_IRUSR | S_IWUSR;
int o = open(map_file_name, O_TRUNC | O_BINARY | O_RDWR | O_CREAT, mode);
if (o == -1)
{
printf("unable to create file %s: %d\n", map_file_name, errno);
return -1;
}
void* map = mmap(NULL, map_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, o, 0);
if (map == MAP_FAILED)
{
printf("mmap returned unexpected error: %d\n", errno);
result = -1;
goto done_close;
}
*((unsigned char*)map) = 1;
if (msync(map, map_size, MS_SYNC) != 0)
{
printf("msync returned unexpected error: %d\n", errno);
result = -1;
}
result = munmap(map, map_size);
if (result != 0)
printf("munmap returned unexpected error: %d\n", errno);
done_close:
close(o);
unlink(map_file_name);
done:
return result;
}
#define EXEC_TEST(name) \
if (name() != 0) { result = -1; printf( #name ": fail\n"); } \
else { printf(#name ": pass\n"); }
int main()
{
int result = 0;
EXEC_TEST(test_anon_map_readwrite);
//NOTE: this test must cause an access violation exception
//EXEC_TEST(test_anon_map_readonly);
EXEC_TEST(test_anon_map_readonly_nowrite);
EXEC_TEST(test_anon_map_writeonly);
EXEC_TEST(test_file_map_readwrite);
EXEC_TEST(test_file_map_mlock_munlock);
EXEC_TEST(test_file_map_msync);
//TODO: EXEC_TEST(test_file_map_mprotect);
return result;
}
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