New ACC version.

committer: mfx <mfx> 1084307588 +0000
2004-05-11 20:33:08 +00:00
parent ed8a71bba1
commit b10f68d20a
11 changed files with 346 additions and 10 deletions
@@ -0,0 +1,97 @@
+/* ACC -- Automatic Compiler Configuration
+
+   Copyright (C) 1996-2004 Markus Franz Xaver Johannes Oberhumer
+   All Rights Reserved.
+
+   This software is a copyrighted work licensed under the terms of
+   the GNU General Public License. Please consult the file "ACC_LICENSE"
+   for details.
+
+   Markus F.X.J. Oberhumer
+   <markus@oberhumer.com>
+   http://www.oberhumer.com/
+ */
+
+
+#define __ACCLIB_HSREAD_CH_INCLUDED 1
+#if !defined(ACCLIB_PUBLIC)
+#  define ACCLIB_PUBLIC(r,f)    r __ACCLIB_FUNCNAME(f)
+#endif
+
+
+/***********************************************************************
+// huge pointer layer - safe read/write
+// handles partial pipe writes and interrupted system calls
+************************************************************************/
+
+ACCLIB_PUBLIC(long, acc_safe_hread) (int fd, acc_hvoid_p buf, long size)
+{
+    acc_hbyte_p b = (acc_hbyte_p) buf;
+    long l = 0;
+    int saved_errno;
+
+    saved_errno = errno;
+    while (l < size)
+    {
+        long n = size - l;
+#if (ACC_HAVE_MM_HUGE_PTR)
+#  define __ACCLIB_REQUIRE_HREAD_CH 1
+        errno = 0; n = acc_hread(fd, b, n);
+#elif (ACC_OS_DOS32) && defined(__DJGPP__)
+        errno = 0; n = _read(fd, b, n);
+#else
+        errno = 0; n = read(fd, b, n);
+#endif
+        if (n == 0)
+            break;
+        if (n < 0) {
+#if defined(EINTR)
+            if (errno == (EINTR)) continue;
+#endif
+            if (errno == 0) errno = 1;
+            return l;
+        }
+        b += n; l += n;
+    }
+    errno = saved_errno;
+    return l;
+}
+
+
+ACCLIB_PUBLIC(long, acc_safe_hwrite) (int fd, const acc_hvoid_p buf, long size)
+{
+    const acc_hbyte_p b = (const acc_hbyte_p) buf;
+    long l = 0;
+    int saved_errno;
+
+    saved_errno = errno;
+    while (l < size)
+    {
+        long n = size - l;
+#if (ACC_HAVE_MM_HUGE_PTR)
+#  define __ACCLIB_REQUIRE_HREAD_CH 1
+        errno = 0; n = acc_hwrite(fd, b, n);
+#elif (ACC_OS_DOS32) && defined(__DJGPP__)
+        errno = 0; n = _write(fd, b, n);
+#else
+        errno = 0; n = write(fd, b, n);
+#endif
+        if (n == 0)
+            break;
+        if (n < 0) {
+#if defined(EINTR)
+            if (errno == (EINTR)) continue;
+#endif
+            if (errno == 0) errno = 1;
+            return l;
+        }
+        b += n; l += n;
+    }
+    errno = saved_errno;
+    return l;
+}
+
+
+/*
+vi:ts=4:et
+*/