mes/lib/stdio/fread.c
Jan Nieuwenhuizen 5dc245e739
build: Simplify.
core: Make mes src/ c files separate compilation units.

* include/mes/constants.h: New file.
* include/mes/macros.h: New file.
* include/mes/mes.h: New file.
* src/gc.c: Update.
* src/hash.c: Update.
* src/lib.c: Update.
* src/math.c: Update.
* src/mes.c: Update.
* src/module.c: Update.
* src/posix.c: Update.
* src/reader.c: Update.
* src/string.c: Update.
* src/struct.c: Update.
* src/vector.c: Update.

    mes: Update datadir.

* src/mes.c (g_datadir): New global.
(open_boot): Rename from read_boot.
(read_boot): New function.
* mes/module/mes/boot-0.scm: Move from boot-0.scm.in
* configure: Update.
* configure.sh: Update.

    mescc: Create libraries from separate files.

* .gitignore: Update.
* build-aux/bootstrap-mes.sh: Remove.
* build-aux/bootstrap.sh.in: Remove.
* build-aux/build-guile.sh: Update.
* build-aux/build-mes.sh: Update.
* build-aux/build-scaffold.sh: New file.
* build-aux/build.sh.in: Update.
* build-aux/cc.sh: Update.
* build-aux/check-tcc.sh: Remove.
* build-aux/config.sh.in: New file.
* build-aux/config.sh: Remove.
* build-aux/install.sh.in: Update.
* build-aux/test-boot.sh: New file.
* build-aux/test-c.sh: New file.
* build-aux/test-driver: New file.
* build-aux/test-suite.sh: New file.
* build-aux/trace.sh: Update.
* build-aux/uninstall.sh.in: Update.
* configure: Update.
* configure.sh: Update.
* lib/linux/x86-mes-mescc/crt1.c: Move from lib/linux/x86-mes.
* lib/linux/x86-mes-mescc/mini.c: Likewise.
* lib/linux/x86_64-mes-mescc/crt1.c: Move from lib/linux/x86_64-mes.
* lib/linux/x86_64-mes-mescc/mini.c: Likewise.
* lib/linux/x86-mes-gcc/syscall.c: Rename from mes.c.
* lib/linux/x86-mes-mescc/syscall.c: Likewise.
* lib/linux/x86_64-mes-gcc/syscall.c: Likewise.
* lib/linux/x86_64-mes-mescc/syscall.c: Likewise.
* lib/mes/mes_open.c: Include config.h.
* lib/tests/stdio/70-printf-hello.c: Likewise.
* lib/tests/stdio/70-printf-simple.c: Likewise.
* scaffold/gc-test.sh: New file.
* simple.sh: Update.
2019-06-08 15:36:22 +02:00

76 lines
1.8 KiB
C

/* -*-comment-start: "//";comment-end:""-*-
* GNU Mes --- Maxwell Equations of Software
* Copyright © 2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of GNU Mes.
*
* GNU Mes is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* GNU Mes 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
*/
#include <mes/lib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
int
__fungetc_p (FILE * stream)
{
return __ungetc_p ((int) (long) stream);
}
size_t
fread (void *data, size_t size, size_t count, FILE * stream)
{
if (!size || !count)
return 0;
size_t todo = size * count;
char *buf = (char *) data;
int bytes = 0;
while (__fungetc_p (stream) && todo-- && ++bytes)
*buf++ = fgetc (stream);
if (todo)
{
int r = read ((int) (long) stream, buf, todo);
if (r < 0 && !bytes)
bytes = r;
else
bytes += r;
}
if (__mes_debug ())
{
eputs ("fread fd=");
eputs (itoa ((int) (long) stream));
eputs (" bytes=");
eputs (itoa (bytes));
eputs ("\n");
static char buf[4096];
if (bytes > 0 && bytes < sizeof (buf))
{
strncpy (buf, data, bytes);
buf[bytes] = 0;
eputs ("fread buf=");
eputs (buf);
eputs ("\n");
}
}
if (bytes > 0)
return bytes / size;
return 0;
}