X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=types%2Ffloat.c;h=028749bc92a177f91237283797a234a65fd21284;hp=ac1525595bc99c82a95f9cd2bc62321c6480be54;hb=c462e188f3e7819c7bc74f671038cdbf36e8c3c0;hpb=0a46062b3916eda6f871b5d80c4b97dcb3804d37 diff --git a/types/float.c b/types/float.c index ac152559..028749bc 100644 --- a/types/float.c +++ b/types/float.c @@ -1,72 +1,152 @@ /* + * float.c + * * BabelTrace - Float Type Converter * - * Copyright (c) 2010 Mathieu Desnoyers + * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation + * + * Author: Mathieu Desnoyers * - * 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. + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. * - * 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 SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. */ #include +#include +#include +#include -size_t float_copy(unsigned char *dest, const struct format *fdest, - const unsigned char *src, const struct format *fsrc, - const struct type_class *type_class) +static +struct definition *_float_definition_new(struct declaration *declaration, + struct definition_scope *parent_scope, + GQuark field_name, int index, + const char *root_name); +static +void _float_definition_free(struct definition *definition); + +static +void _float_declaration_free(struct declaration *declaration) { - struct type_class_float *float_class = - container_of(type_class, struct type_class_float, p); + struct declaration_float *float_declaration = + container_of(declaration, struct declaration_float, p); - if (fsrc->float_copy == fdest->float_copy) { - fsrc->float_copy(dest, float_class, src, float_class); - return float_class->mantissa_len + float_class->exp_len; - } else { - double v; + declaration_unref(&float_declaration->exp->p); + declaration_unref(&float_declaration->mantissa->p); + declaration_unref(&float_declaration->sign->p); + g_free(float_declaration); +} - v = fsrc->double_read(src, fsrc); - return fdest->double_write(dest, fdest, v); - } +struct declaration_float * + float_declaration_new(size_t mantissa_len, + size_t exp_len, int byte_order, size_t alignment) +{ + struct declaration_float *float_declaration; + struct declaration *declaration; + + float_declaration = g_new(struct declaration_float, 1); + declaration = &float_declaration->p; + declaration->id = CTF_TYPE_FLOAT; + declaration->alignment = alignment; + declaration->declaration_free = _float_declaration_free; + declaration->definition_new = _float_definition_new; + declaration->definition_free = _float_definition_free; + declaration->ref = 1; + float_declaration->byte_order = byte_order; + + float_declaration->sign = integer_declaration_new(1, + byte_order, false, 1, 2, + CTF_STRING_NONE, NULL); + float_declaration->mantissa = integer_declaration_new(mantissa_len - 1, + byte_order, false, 1, 10, + CTF_STRING_NONE, NULL); + float_declaration->exp = integer_declaration_new(exp_len, + byte_order, true, 1, 10, + CTF_STRING_NONE, NULL); + return float_declaration; } -struct type_class_float *float_type_new(const char *name, - size_t mantissa_len, - size_t exp_len, int byte_order, - size_t alignment) +static +struct definition * + _float_definition_new(struct declaration *declaration, + struct definition_scope *parent_scope, + GQuark field_name, int index, + const char *root_name) { - struct type_class_float *float_class; - int ret; + struct declaration_float *float_declaration = + container_of(declaration, struct declaration_float, p); + struct definition_float *_float; + struct definition *tmp; + _float = g_new(struct definition_float, 1); + declaration_ref(&float_declaration->p); + _float->p.declaration = declaration; + _float->declaration = float_declaration; + _float->p.scope = new_definition_scope(parent_scope, field_name, root_name); + _float->p.path = new_definition_path(parent_scope, field_name, root_name); + if (float_declaration->byte_order == LITTLE_ENDIAN) { + tmp = float_declaration->mantissa->p.definition_new(&float_declaration->mantissa->p, + _float->p.scope, g_quark_from_static_string("mantissa"), 0, NULL); + _float->mantissa = container_of(tmp, struct definition_integer, p); + tmp = float_declaration->exp->p.definition_new(&float_declaration->exp->p, + _float->p.scope, g_quark_from_static_string("exp"), 1, NULL); + _float->exp = container_of(tmp, struct definition_integer, p); + tmp = float_declaration->sign->p.definition_new(&float_declaration->sign->p, + _float->p.scope, g_quark_from_static_string("sign"), 2, NULL); + _float->sign = container_of(tmp, struct definition_integer, p); + } else { + tmp = float_declaration->sign->p.definition_new(&float_declaration->sign->p, + _float->p.scope, g_quark_from_static_string("sign"), 0, NULL); + _float->sign = container_of(tmp, struct definition_integer, p); + tmp = float_declaration->exp->p.definition_new(&float_declaration->exp->p, + _float->p.scope, g_quark_from_static_string("exp"), 1, NULL); + _float->exp = container_of(tmp, struct definition_integer, p); + tmp = float_declaration->mantissa->p.definition_new(&float_declaration->mantissa->p, + _float->p.scope, g_quark_from_static_string("mantissa"), 2, NULL); + _float->mantissa = container_of(tmp, struct definition_integer, p); + } + _float->p.ref = 1; /* - * Freed when type is unregistered. + * Use INT_MAX order to ensure that all fields of the parent + * scope are seen as being prior to this scope. */ - float_class = g_new(struct type_class_float, 1); - float_class->p.name = g_quark_from_string(name); - float_class->p.alignment = alignment; - float_class->mantissa_len = mantissa_len; - float_class->exp_len = exp_len; - float_class->byte_order = byte_order; - if (float_class->p.name) { - ret = ctf_register_type(&float_class->p); - if (ret) { - g_free(float_class); - return NULL; - } + _float->p.index = root_name ? INT_MAX : index; + _float->p.name = field_name; + _float->value = 0.0; + if (parent_scope) { + int ret; + + ret = register_field_definition(field_name, &_float->p, + parent_scope); + assert(!ret); } - return float_class; + return &_float->p; } -void float_type_free(struct type_class_float *float_class) +static +void _float_definition_free(struct definition *definition) { - if (!float_class->name) - g_free(float_class); + struct definition_float *_float = + container_of(definition, struct definition_float, p); + + definition_unref(&_float->sign->p); + definition_unref(&_float->exp->p); + definition_unref(&_float->mantissa->p); + free_definition_scope(_float->p.scope); + declaration_unref(_float->p.declaration); + g_free(_float); }