/* COVERAGE: shmget shmctl */ #include #include #include #include #include #include int main() { char *curdir; struct timeval tv; key_t ipc_key; int shmid; // Generate a System V IPC key (based on the current directory and time) curdir = getcwd(NULL, 0); gettimeofday(&tv, NULL); ipc_key = ftok(curdir, tv.tv_usec); // Why 64k? ppc64 has 64K pages. ia64 has 16k pages. x86_64/i686 // has 4k pages. When we specify a size to shmget(), it must be a // multiple of the page size, so we use the biggest. // // The least significant 9 bites of the flags argument are the // permissions. 0600 is read/write permissions. shmid = shmget(ipc_key, 65535, (IPC_CREAT | IPC_EXCL | 0600)); //staptest// shmget (NNNN, 65535, IPC_CREAT|IPC_EXCL|0600) = NNNN shmget(ipc_key, -1, (IPC_CREAT | IPC_EXCL | 0600)); #if __WORDSIZE == 64 //staptest// shmget (NNNN, 18446744073709551615, IPC_CREAT|IPC_EXCL|0600) = -NNNN #else //staptest// shmget (NNNN, 4294967295, IPC_CREAT|IPC_EXCL|0600) = -NNNN #endif shmget(ipc_key, 65535, -1); //staptest// shmget (NNNN, 65535, IPC_[^ ]+|XXXX|0777) = -NNNN shmctl(shmid, IPC_RMID, NULL); //staptest// shmctl (NNNN, [[[[IPC_64|]]]]?IPC_RMID, 0x0) = NNNN shmid = shmget(-1, 65535, (IPC_CREAT | IPC_EXCL | 0600)); //staptest// shmget (-1, 65535, IPC_CREAT|IPC_EXCL|0600) = NNNN shmctl(-1, IPC_RMID, NULL); //staptest// shmctl (-1, [[[[IPC_64|]]]]?IPC_RMID, 0x0) = -NNNN shmctl(shmid, -1, NULL); //staptest// shmctl (NNNN, [[[[IPC_64|XXXX!!!!0x[f]+]]]], 0x0) = -NNNN shmctl(shmid, IPC_STAT, (struct shmid_ds *)-1); #ifdef __s390__ //staptest// shmctl (NNNN, [[[[IPC_64|]]]]?IPC_STAT, 0x[7]?[f]+) = -NNNN #else //staptest// shmctl (NNNN, [[[[IPC_64|]]]]?IPC_STAT, 0x[f]+) = -NNNN #endif shmctl(shmid, IPC_RMID, NULL); //staptest// shmctl (NNNN, [[[[IPC_64|]]]]?IPC_RMID, 0x0) = NNNN return 0; }