Teste: extra.c Source File

00001 
00007 #include "h1.h"
00008 
00015 int GetSharedMem(char* token)
00016 {
00017         key_t key;              /*it's a long int */
00018         int shm_id;
00019         
00020         /* generate a random key based on a file name and char */
00021         key = ftok(token, 'X');
00022         if(key == -1) {perror("ftok"); return -1;}
00023         
00024         /* now connect to (or possibly create) the shared memory segment with permission 644 */
00025         shm_id = shmget(key, SHM_SIZE, 0644 | IPC_CREAT);
00026         if(shm_id == -1){perror("shmget"); return -1;}
00027 
00028         return shm_id;
00029 }