The shell now forks, uses exit, and wait.

libmaxsi/process.cpp

@@ -75,12 +75,7 @@ namespace Maxsi
 
 		DUAL_FUNCTION(void, exit, Exit, (int status))
 		{
-			// TODO: Once wait() works and is used in the shell, call _exit!
-			//_exit(status);
-			const char* sh = "sh";
-			const char* argv[] = { sh };
-			Execute("sh", 1, argv);
-			while(true);
+			_exit(status);
 		}
 
 		DUAL_FUNCTION(pid_t, fork, Fork, ())

utils/init.cpp

@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <sys/wait.h>
 #include <libmaxsi/platform.h>
 #include <libmaxsi/process.h>
 #include <libmaxsi/thread.cpp>
@@ -7,8 +8,9 @@ using namespace Maxsi;
 
 int parent(pid_t childid)
 {
-	// TODO: wait for child to finish.
-	while ( true ) { Thread::Sleep(100000);	}
+	int status;
+	waitpid(childid, &status, 0);
+	return status;
 }
 
 int child()
@@ -18,7 +20,7 @@ int child()
 
 	Process::Execute(programname, 1, newargv);
 
-	return 1;
+	return 2;
 }
 
 int main(int argc, char* argv[])
@@ -31,7 +33,7 @@ int main(int argc, char* argv[])
 	if ( childpid < 0 )
 	{
 		printf("init: unable to fork a child\n");
-		return 1;
+		return 2;
 	}
 
 	return ( childpid == 0 ) ? child() : parent(childpid);

utils/mxsh.cpp

@@ -1,4 +1,7 @@
 #include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
 #include <libmaxsi/platform.h>
 #include <libmaxsi/process.h>
 #include <libmaxsi/sortix-keyboard.h>
@@ -43,12 +46,24 @@ void command()
 
 	if ( String::Compare(command, "$$") == 0 ) { printf("%u\n", Process::GetPID()); return; }
 	if ( String::Compare(command, "$PPID") == 0 ) { printf("%u\n", Process::GetParentPID()); return; }
+	if ( String::Compare(command, "exit") == 0 ) { exit(0); return; }
+
+	pid_t child = fork();
+	if ( child < 0 ) { printf("fork failed\n"); return; }
+	if ( child != 0 )
+	{
+		int status;
+		pid_t childpid = wait(&status);
+		return;
+	}
 
 	// Replace the current process with another process image.
 	Process::Execute(command, 0, NULL);
 
 	// This is clever. This only happens if the program didn't change.
 	printf("%s: command not found\n", command);
+
+	exit(127);
 }
 
 int main(int argc, char* argv[])