137 lines
4.0 KiB
C
137 lines
4.0 KiB
C
/*
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* Copyright (C) 2016 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* You can also choose to distribute this program under the terms of
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* the Unmodified Binary Distribution Licence (as given in the file
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* COPYING.UBDL), provided that you have satisfied its requirements.
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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/** @file
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*
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* I/O buffer tests
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*
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*/
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/* Forcibly enable assertions */
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#undef NDEBUG
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#include <stdint.h>
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#include <string.h>
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#include <assert.h>
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#include <ipxe/iobuf.h>
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#include <ipxe/io.h>
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#include <ipxe/test.h>
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/* Forward declaration */
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struct self_test iobuf_test __self_test;
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/**
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* Report I/O buffer allocation test result
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*
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* @v len Required length of buffer
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* @v align Physical alignment
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* @v offset Offset from physical alignment
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* @v file Test code file
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* @v line Test code line
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*/
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static inline void alloc_iob_okx ( size_t len, size_t align, size_t offset,
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const char *file, unsigned int line ) {
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struct io_buffer *iobuf;
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/* Allocate I/O buffer */
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iobuf = alloc_iob_raw ( len, align, offset );
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okx ( iobuf != NULL, file, line );
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DBGC ( &iobuf_test, "IOBUF %p (%#08lx+%#zx) for %#zx align %#zx "
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"offset %#zx\n", iobuf, virt_to_phys ( iobuf->data ),
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iob_tailroom ( iobuf ), len, align, offset );
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/* Validate requested length and alignment */
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okx ( ( ( ( intptr_t ) iobuf ) & ( __alignof__ ( *iobuf ) - 1 ) ) == 0,
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file, line );
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okx ( iob_tailroom ( iobuf ) >= len, file, line );
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okx ( ( ( align == 0 ) ||
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( ( virt_to_phys ( iobuf->data ) & ( align - 1 ) ) ==
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( offset & ( align - 1 ) ) ) ), file, line );
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/* Overwrite entire content of I/O buffer (for Valgrind) */
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memset ( iob_put ( iobuf, len ), 0x55, len );
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/* Free I/O buffer */
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free_iob ( iobuf );
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}
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#define alloc_iob_ok( len, align, offset ) \
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alloc_iob_okx ( len, align, offset, __FILE__, __LINE__ )
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/**
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* Report I/O buffer allocation failure test result
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*
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* @v len Required length of buffer
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* @v align Physical alignment
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* @v offset Offset from physical alignment
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* @v file Test code file
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* @v line Test code line
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*/
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static inline void alloc_iob_fail_okx ( size_t len, size_t align, size_t offset,
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const char *file, unsigned int line ) {
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struct io_buffer *iobuf;
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/* Allocate I/O buffer */
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iobuf = alloc_iob_raw ( len, align, offset );
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okx ( iobuf == NULL, file, line );
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}
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#define alloc_iob_fail_ok( len, align, offset ) \
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alloc_iob_fail_okx ( len, align, offset, __FILE__, __LINE__ )
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/**
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* Perform I/O buffer self-tests
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*
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*/
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static void iobuf_test_exec ( void ) {
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/* Check zero-length allocations */
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alloc_iob_ok ( 0, 0, 0 );
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alloc_iob_ok ( 0, 0, 1 );
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alloc_iob_ok ( 0, 1, 0 );
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alloc_iob_ok ( 0, 1024, 0 );
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alloc_iob_ok ( 0, 139, -17 );
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/* Check various sensible allocations */
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alloc_iob_ok ( 1, 0, 0 );
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alloc_iob_ok ( 16, 16, 0 );
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alloc_iob_ok ( 64, 0, 0 );
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alloc_iob_ok ( 65, 0, 0 );
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alloc_iob_ok ( 65, 1024, 19 );
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alloc_iob_ok ( 1536, 1536, 0 );
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alloc_iob_ok ( 2048, 2048, 0 );
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alloc_iob_ok ( 2048, 2048, -10 );
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/* Excessively large or excessively aligned allocations should fail */
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alloc_iob_fail_ok ( -1UL, 0, 0 );
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alloc_iob_fail_ok ( -1UL, 1024, 0 );
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alloc_iob_fail_ok ( 0, -1UL, 0 );
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alloc_iob_fail_ok ( 1024, -1UL, 0 );
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}
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/** I/O buffer self-test */
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struct self_test iobuf_test __self_test = {
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.name = "iobuf",
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.exec = iobuf_test_exec,
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};
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