| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include "tests/sys_mman.h" |
| #include <errno.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| /* Test case supplied by Vasile Floroiu. */ |
| |
| #define DO(cmd) printf(#cmd "; status: %s\n", strerror(errno)) |
| #define SZ 48216 + 1024 |
| |
| int main() |
| { |
| int fd; |
| |
| fd = shm_open("/hw_mngr.c", (O_CREAT | O_EXCL | O_RDWR), |
| (S_IREAD | S_IWRITE)); |
| DO(shm_open()); |
| { |
| void *ptr; |
| ftruncate(fd, SZ); |
| DO(ftruncate(fd, SZ)); |
| |
| ptr = mmap(0, SZ, (PROT_READ | PROT_WRITE), MAP_SHARED, fd, 0); |
| DO(mmap()); |
| |
| munmap(ptr, SZ); |
| DO(munmap()); |
| } |
| shm_unlink("/hw_mngr.c"); |
| DO(shm_unlink()); |
| return 0; |
| } |