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