Implement process resource limits

include/syscall/linux/defs.hpp

@@ -247,13 +247,6 @@ struct rusage
 	long ru_nivcsw;
 };
 
-typedef unsigned long rlim_t;
-struct rlimit
-{
-	rlim_t rlim_cur; /* Soft limit */
-	rlim_t rlim_max; /* Hard limit (ceiling for rlim_cur) */
-};
-
 struct linux_dirent
 {
 	unsigned long d_ino;	 /* Inode number */

include/task.hpp

@@ -33,6 +33,15 @@
 #include <abi.h>
 #include <list>
 
+#define RLIM_INFINITY (~0ULL)
+
+typedef unsigned long long rlim_t;
+struct rlimit
+{
+	rlim_t rlim_cur;
+	rlim_t rlim_max;
+};
+
 namespace Tasking
 {
 	using vfs::FileDescriptorTable;
@@ -445,6 +454,12 @@ namespace Tasking
 			pid_t ProcessGroupID = 0;
 			pid_t SessionID = 0;
 		} Security{};
+		struct
+		{
+			rlim_t OpenFiles = 4096;
+			rlim_t Threads = 1024;
+			rlim_t Memory = 8589934592; /* 8 GiB */
+		} Limits{};
 		TaskInfo Info{};
 		ThreadLocalStorage TLS{};