63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <sys/mman.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
|
|
#include "../src/monocoque/simulatorapi/simdata.h"
|
|
#include "../src/monocoque/simulatorapi/test.h"
|
|
|
|
#define DATA "Hello, World! From PID %d"
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
int res;
|
|
int fd;
|
|
int len;
|
|
pid_t pid;
|
|
void* addr;
|
|
|
|
pid = getpid();
|
|
|
|
// get shared memory file descriptor (NOT a file)
|
|
fd = shm_open(TEST_MEM_FILE_LOCATION, O_RDWR, S_IRUSR | S_IWUSR);
|
|
if (fd == -1)
|
|
{
|
|
perror("open");
|
|
return 10;
|
|
}
|
|
|
|
// extend shared memory object as by default it's initialized with size 0
|
|
//res = ftruncate(fd, STORAGE_SIZE);
|
|
SimData* data = malloc(sizeof(SimData));
|
|
data->velocity=1;
|
|
data->gear=4;
|
|
data->maxrpm=6500;
|
|
data->rpms=1000;
|
|
//SimData.pulses=398273;
|
|
|
|
res = ftruncate(fd, sizeof(SimData));
|
|
if (res == -1)
|
|
{
|
|
//perror("ftruncate");
|
|
//return 20;
|
|
}
|
|
|
|
data->velocity=atoi(argv[1]);
|
|
data->rpms=atoi(argv[2]);
|
|
data->gear=atoi(argv[3]);
|
|
//SimData.pulses=39993;
|
|
// map .shared memory to process address space
|
|
addr = mmap(NULL, sizeof(SimData), PROT_WRITE, MAP_SHARED, fd, 0);
|
|
if (addr == MAP_FAILED)
|
|
{
|
|
perror("mmap");
|
|
return 30;
|
|
}
|
|
|
|
memcpy(addr, data, sizeof(SimData));
|
|
|
|
return 0;
|
|
}
|