*
* Integers read/write functions.
*
- * Copyright (c) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
- * This 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.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
*
- * This 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 this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*/
-#include <ctf/ctf-types.h>
+#include <babeltrace/ctf/types.h>
+#include <babeltrace/bitfield.h>
#include <stdint.h>
#include <glib.h>
#include <endian.h>
-uint64_t uint_read(const uint8_t *ptr, size_t len, int byte_order)
+static
+uint64_t _aligned_uint_read(struct stream_pos *pos,
+ const struct type_class_integer *int_class)
{
- int rbo = (byte_order != BYTE_ORDER); /* reverse byte order */
+ int rbo = (int_class->byte_order != BYTE_ORDER); /* reverse byte order */
- switch (len) {
+ align_pos(pos, int_class->p.alignment);
+ assert(!(pos->offset % CHAR_BIT));
+ switch (int_class->len) {
case 8:
{
uint8_t v;
- v = *(const uint8_t *)ptr;
+ v = *(const uint8_t *)pos->base;
+ move_pos(pos, int_class->len);
return v;
}
case 16:
{
uint16_t v;
- v = *(const uint16_t *)ptr;
+ v = *(const uint16_t *)pos->base;
+ move_pos(pos, int_class->len);
return rbo ? GUINT16_SWAP_LE_BE(v) : v;
}
case 32:
{
uint32_t v;
- v = *(const uint32_t *)ptr;
+ v = *(const uint32_t *)pos->base;
+ move_pos(pos, int_class->len);
return rbo ? GUINT32_SWAP_LE_BE(v) : v;
}
case 64:
{
uint64_t v;
- v = *(const uint64_t *)ptr;
+ v = *(const uint64_t *)pos->base;
+ move_pos(pos, int_class->len);
return rbo ? GUINT64_SWAP_LE_BE(v) : v;
}
default:
}
}
-int64_t int_read(const uint8_t *ptr, size_t len, int byte_order)
+static
+int64_t _aligned_int_read(struct stream_pos *pos,
+ const struct type_class_integer *int_class)
{
- int rbo = (byte_order != BYTE_ORDER); /* reverse byte order */
+ int rbo = (int_class->byte_order != BYTE_ORDER); /* reverse byte order */
- switch (len) {
+ align_pos(pos, int_class->p.alignment);
+ assert(!(pos->offset % CHAR_BIT));
+ switch (int_class->len) {
case 8:
{
int8_t v;
- v = *(const int8_t *)ptr;
+ v = *(const int8_t *)pos->base;
+ move_pos(pos, int_class->len);
return v;
}
case 16:
{
int16_t v;
- v = *(const int16_t *)ptr;
+ v = *(const int16_t *)pos->base;
+ move_pos(pos, int_class->len);
return rbo ? GUINT16_SWAP_LE_BE(v) : v;
}
case 32:
{
int32_t v;
- v = *(const int32_t *)ptr;
+ v = *(const int32_t *)pos->base;
+ move_pos(pos, int_class->len);
return rbo ? GUINT32_SWAP_LE_BE(v) : v;
}
case 64:
{
int64_t v;
- v = *(const int64_t *)ptr;
+ v = *(const int64_t *)pos->base;
+ move_pos(pos, int_class->len);
return rbo ? GUINT64_SWAP_LE_BE(v) : v;
}
default:
}
}
-size_t uint_write(uint8_t *ptr, size_t len, int byte_order, uint64_t v)
+static
+void _aligned_uint_write(struct stream_pos *pos,
+ const struct type_class_integer *int_class,
+ uint64_t v)
{
- int rbo = (byte_order != BYTE_ORDER); /* reverse byte order */
+ int rbo = (int_class->byte_order != BYTE_ORDER); /* reverse byte order */
- if (!ptr)
+ align_pos(pos, int_class->p.alignment);
+ assert(!(pos->offset % CHAR_BIT));
+ if (pos->dummy)
goto end;
- switch (len) {
- case 8: *(uint8_t *)ptr = (uint8_t) v;
+ switch (int_class->len) {
+ case 8: *(uint8_t *) get_pos_addr(pos) = (uint8_t) v;
break;
case 16:
- *(uint16_t *)ptr = rbo ? GUINT16_SWAP_LE_BE((uint16_t) v) :
+ *(uint16_t *) get_pos_addr(pos) = rbo ?
+ GUINT16_SWAP_LE_BE((uint16_t) v) :
(uint16_t) v;
break;
case 32:
- *(uint32_t *)ptr = rbo ? GUINT32_SWAP_LE_BE((uint32_t) v) :
+ *(uint32_t *) get_pos_addr(pos) = rbo ?
+ GUINT32_SWAP_LE_BE((uint32_t) v) :
(uint32_t) v;
break;
case 64:
- *(uint64_t *)ptr = rbo ? GUINT64_SWAP_LE_BE(v) : v;
+ *(uint64_t *) get_pos_addr(pos) = rbo ?
+ GUINT64_SWAP_LE_BE(v) : v;
break;
default:
assert(0);
}
end:
- return len;
+ move_pos(pos, int_class->len);
}
-size_t int_write(uint8_t *ptr, size_t len, int byte_order, int64_t v)
+static
+void _aligned_int_write(struct stream_pos *pos,
+ const struct type_class_integer *int_class,
+ int64_t v)
{
- int rbo = (byte_order != BYTE_ORDER); /* reverse byte order */
+ int rbo = (int_class->byte_order != BYTE_ORDER); /* reverse byte order */
- if (!ptr)
+ align_pos(pos, int_class->p.alignment);
+ assert(!(pos->offset % CHAR_BIT));
+ if (pos->dummy)
goto end;
- switch (len) {
- case 8: *(int8_t *)ptr = (int8_t) v;
+ switch (int_class->len) {
+ case 8: *(int8_t *) get_pos_addr(pos) = (int8_t) v;
break;
case 16:
- *(int16_t *)ptr = rbo ? GUINT16_SWAP_LE_BE((int16_t) v) :
+ *(int16_t *) get_pos_addr(pos) = rbo ?
+ GUINT16_SWAP_LE_BE((int16_t) v) :
(int16_t) v;
break;
case 32:
- *(int32_t *)ptr = rbo ? GUINT32_SWAP_LE_BE((int32_t) v) :
+ *(int32_t *) get_pos_addr(pos) = rbo ?
+ GUINT32_SWAP_LE_BE((int32_t) v) :
(int32_t) v;
break;
case 64:
- *(int64_t *)ptr = rbo ? GUINT64_SWAP_LE_BE(v) : v;
+ *(int64_t *) get_pos_addr(pos) = rbo ?
+ GUINT64_SWAP_LE_BE(v) : v;
break;
default:
assert(0);
}
end:
- return len;
+ move_pos(pos, int_class->len);
+ return;
+}
+
+uint64_t ctf_uint_read(struct stream_pos *pos,
+ const struct type_class_integer *int_class)
+{
+ uint64_t v;
+
+ align_pos(pos, int_class->p.alignment);
+ if (int_class->byte_order == LITTLE_ENDIAN)
+ ctf_bitfield_read_le(pos->base, pos->offset,
+ int_class->len, &v);
+ else
+ ctf_bitfield_read_be(pos->base, pos->offset,
+ int_class->len, &v);
+ move_pos(pos, int_class->len);
+ return v;
+}
+
+int64_t ctf_int_read(struct stream_pos *pos,
+ const struct type_class_integer *int_class)
+{
+ int64_t v;
+
+ align_pos(pos, int_class->p.alignment);
+ if (int_class->byte_order == LITTLE_ENDIAN)
+ ctf_bitfield_read_le(pos->base, pos->offset,
+ int_class->len, &v);
+ else
+ ctf_bitfield_read_be(pos->base, pos->offset,
+ int_class->len, &v);
+ move_pos(pos, int_class->len);
+ return v;
+}
+
+void ctf_uint_write(struct stream_pos *pos,
+ const struct type_class_integer *int_class,
+ uint64_t v)
+{
+ align_pos(pos, int_class->p.alignment);
+ if (pos->dummy)
+ goto end;
+ if (int_class->byte_order == LITTLE_ENDIAN)
+ ctf_bitfield_write_le(pos->base, pos->offset,
+ int_class->len, v);
+ else
+ ctf_bitfield_write_be(pos->base, pos->offset,
+ int_class->len, v);
+end:
+ move_pos(pos, int_class->len);
+}
+
+void ctf_int_write(struct stream_pos *pos,
+ const struct type_class_integer *int_class,
+ int64_t v)
+{
+ align_pos(pos, int_class->p.alignment);
+ if (pos->dummy)
+ goto end;
+ if (int_class->byte_order == LITTLE_ENDIAN)
+ ctf_bitfield_write_le(pos->base, pos->offset,
+ int_class->len, v);
+ else
+ ctf_bitfield_write_be(pos->base, pos->offset,
+ int_class->len, v);
+end:
+ move_pos(pos, int_class->len);
}
projects / babeltrace.git / blobdiff