Added posixio-test.c

git-svn-id: svn://svn.cc65.org/cc65/trunk@1532 b7a2c559-68d2-44c3-8de9-860c34a00d81

testcode/lib/files.txt

@@ -4,12 +4,12 @@ Test programs for the runtime lib:
 
 clock.c		-	test program for clock() and CLOCKS_PER_SEC
 cprintf.c	-	test program for cprintf \n and \r operators
+cursor.c	-	test the cursor() function
 deb.c		-	test program for the library debugger
 div-test.c	-	test division/modulus and the div() routine
 ft.c		-	file I/O test program (open + read functions)
 getsp.s		-	helper routine for ft.c
 joytest.c	-	readjoy function test program
-time-test.c	-	test the time/mktime/gmtime/asctime functions
+posixio-test.c  -       test POSIX file i/o routines (open/read/write/close)
-cursor.c	-	test the cursor() function
 seek.c		-	test lseek()/fseek()/fell()
-
+time-test.c     -       test the time/mktime/gmtime/asctime functions

testcode/lib/posixio-test.c

@@ -0,0 +1,86 @@
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+
+
+
+int Open (const char* Name, int Flags)
+{
+    int fd;
+    printf ("Opening %s: ", Name);
+    fd = open (Name, Flags);
+    printf ("%d\n", fd);
+    return fd;
+}
+
+
+
+void Write (int fd, const void* Buf, unsigned Size)
+{
+    int Res;
+    Res = write (fd, Buf, Size);
+    printf ("Writing %u bytes to %d: %d\n", Size, fd, Res);
+}
+
+
+
+int Read (int fd, void* Buf, unsigned Size)
+{
+    int Res;
+    Res = read (fd, Buf, Size);
+    printf ("Reading %u bytes from %d: %d\n", Size, fd, Res);
+    return Res > 0? Res : 0;
+}
+
+
+
+void Close (int fd)
+{
+    printf ("Closing %d: %d\n", fd, close (fd));
+}
+
+
+
+int main (void)
+{
+    int fd1, fd2;
+    int Res;
+    static const char text1[] = "This goes into file #1\n";
+    static const char text2[] = "This goes into file #2\n";
+    static const char text3[] = "This goes into file #3\n";
+    static const char text4[] = "This goes into file #4\n";
+    static char Buf[200];
+
+
+    fd1 = Open ("foobar1", O_WRONLY|O_CREAT|O_TRUNC);
+    fd2 = Open ("foobar2", O_WRONLY|O_CREAT|O_TRUNC);
+
+    Write (fd1, text1, sizeof (text1) - 1);
+    Write (fd2, text2, sizeof (text2) - 1);
+    Write (fd1, text1, sizeof (text1) - 1);
+    Write (fd2, text2, sizeof (text2) - 1);
+
+    Close (fd1);
+    Close (fd2);
+
+    fd1 = Open ("foobar3", O_WRONLY|O_CREAT|O_TRUNC);
+    fd2 = Open ("foobar4", O_WRONLY|O_CREAT|O_TRUNC);
+
+    Write (fd1, text3, sizeof (text3) - 1);
+    Write (fd2, text4, sizeof (text4) - 1);
+    Write (fd1, text3, sizeof (text3) - 1);
+    Write (fd2, text4, sizeof (text4) - 1);
+
+    Close (fd1);
+    Close (fd2);
+
+    fd1 = Open ("foobar1", O_RDONLY);
+    Res = Read (fd1, Buf, sizeof (Buf));
+    printf ("%.*s", Res, Buf);
+    Res = Read (fd1, Buf, sizeof (Buf));
+    Close (fd1);
+
+    return 0;
+}
+
+