Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 185 insertions, 0 deletions

diff --git a/REORG.TODO/iconvdata/tst-loading.c b/REORG.TODO/iconvdata/tst-loading.c
new file mode 100644
index 0000000000..4aac51c7a4
--- /dev/null
+++ b/REORG.TODO/iconvdata/tst-loading.c
@@ -0,0 +1,185 @@
+/* Tests for loading and unloading of iconv modules.
+   Copyright (C) 2000-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <iconv.h>
+#include <mcheck.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+
+/* How many load/unload operations do we do.  */
+#define TEST_ROUNDS	5000
+
+
+enum state { unloaded, loaded };
+
+struct
+{
+  const char *name;
+  enum state state;
+  iconv_t cd;
+} modules[] =
+{
+#define MODULE(Name) { .name = #Name, .state = unloaded }
+  MODULE (ISO-8859-1),
+  MODULE (ISO-8859-2),
+  MODULE (ISO-8859-3),
+  MODULE (ISO-8859-4),
+  MODULE (ISO-8859-5),
+  MODULE (ISO-8859-6),
+  MODULE (ISO-8859-15),
+  MODULE (EUC-JP),
+  MODULE (EUC-KR),
+  MODULE (EUC-CN),
+  MODULE (EUC-TW),
+  MODULE (SJIS),
+  MODULE (UHC),
+  MODULE (KOI8-R),
+  MODULE (BIG5),
+  MODULE (BIG5HKSCS)
+};
+#define nmodules (sizeof (modules) / sizeof (modules[0]))
+
+
+/* The test data.  */
+static const char inbuf[] =
+"The first step is the function to create a handle.\n"
+"\n"
+" - Function: iconv_t iconv_open (const char *TOCODE, const char\n"
+"          *FROMCODE)\n"
+"     The `iconv_open' function has to be used before starting a\n"
+"     conversion.  The two parameters this function takes determine the\n"
+"     source and destination character set for the conversion and if the\n"
+"     implementation has the possibility to perform such a conversion the\n"
+"     function returns a handle.\n"
+"\n"
+"     If the wanted conversion is not available the function returns\n"
+"     `(iconv_t) -1'.  In this case the global variable `errno' can have\n"
+"     the following values:\n"
+"\n"
+"    `EMFILE'\n"
+"          The process already has `OPEN_MAX' file descriptors open.\n"
+"\n"
+"    `ENFILE'\n"
+"          The system limit of open file is reached.\n"
+"\n"
+"    `ENOMEM'\n"
+"          Not enough memory to carry out the operation.\n"
+"\n"
+"    `EINVAL'\n"
+"          The conversion from FROMCODE to TOCODE is not supported.\n"
+"\n"
+"     It is not possible to use the same descriptor in different threads\n"
+"     to perform independent conversions.  Within the data structures\n"
+"     associated with the descriptor there is information about the\n"
+"     conversion state.  This must not be messed up by using it in\n"
+"     different conversions.\n"
+"\n"
+"     An `iconv' descriptor is like a file descriptor as for every use a\n"
+"     new descriptor must be created.  The descriptor does not stand for\n"
+"     all of the conversions from FROMSET to TOSET.\n"
+"\n"
+"     The GNU C library implementation of `iconv_open' has one\n"
+"     significant extension to other implementations.  To ease the\n"
+"     extension of the set of available conversions the implementation\n"
+"     allows storing the necessary files with data and code in\n"
+"     arbitrarily many directories.  How this extension has to be\n"
+"     written will be explained below (*note glibc iconv\n"
+"     Implementation::).  Here it is only important to say that all\n"
+"     directories mentioned in the `GCONV_PATH' environment variable are\n"
+"     considered if they contain a file `gconv-modules'.  These\n"
+"     directories need not necessarily be created by the system\n"
+"     administrator.  In fact, this extension is introduced to help users\n"
+"     writing and using their own, new conversions.  Of course this does\n"
+"     not work for security reasons in SUID binaries; in this case only\n"
+"     the system directory is considered and this normally is\n"
+"     `PREFIX/lib/gconv'.  The `GCONV_PATH' environment variable is\n"
+"     examined exactly once at the first call of the `iconv_open'\n"
+"     function.  Later modifications of the variable have no effect.\n";
+
+
+static int
+do_test (void)
+{
+  size_t count = TEST_ROUNDS;
+  int result = 0;
+
+  mtrace ();
+
+  /* Just a seed.  */
+  srandom (TEST_ROUNDS);
+
+  while (count--)
+    {
+      int idx = random () % nmodules;
+
+      if (modules[idx].state == unloaded)
+	{
+	  char outbuf[10000];
+	  char *inptr = (char *) inbuf;
+	  size_t insize = sizeof (inbuf) - 1;
+	  char *outptr = outbuf;
+	  size_t outsize = sizeof (outbuf);
+
+	  /* Load the module and do the conversion.  */
+	  modules[idx].cd = iconv_open ("UTF-8", modules[idx].name);
+
+	  if (modules[idx].cd == (iconv_t) -1)
+	    {
+	      printf ("opening of %s failed: %m\n", modules[idx].name);
+	      result = 1;
+	      break;
+	    }
+
+	  modules[idx].state = loaded;
+
+	  /* Now a simple test.  */
+	  if (iconv (modules[idx].cd, &inptr, &insize, &outptr, &outsize) != 0
+	      || *inptr != '\0')
+	    {
+	      printf ("conversion with %s failed\n", modules[idx].name);
+	      result = 1;
+	    }
+	}
+      else
+	{
+	  /* Unload the module.  */
+	  if (iconv_close (modules[idx].cd) != 0)
+	    {
+	      printf ("closing of %s failed: %m\n", modules[idx].name);
+	      result = 1;
+	      break;
+	    }
+
+	  modules[idx].state = unloaded;
+	}
+    }
+
+  for (count = 0; count < nmodules; ++count)
+    if (modules[count].state == loaded && iconv_close (modules[count].cd) != 0)
+      {
+	printf ("closing of %s failed: %m\n", modules[count].name);
+	result = 1;
+      }
+
+  return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"