restart rep

Practice/04.10/shmat/svshm_string.h

@@ -0,0 +1,26 @@
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <sys/sem.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define errExit(msg)        \
+    do                      \
+    {                       \
+        perror(msg);        \
+        exit(EXIT_FAILURE); \
+    } while (0)
+
+union semun
+{ /* Used in calls to semctl() */
+    int val;
+    struct semid_ds *buf;
+    unsigned short *array;
+#if defined(__linux__)
+    struct seminfo *__buf;
+#endif
+};
+
+#define MEM_SIZE 4096