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-rw-r--r--core/m_struct.h112
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diff --git a/core/m_struct.h b/core/m_struct.h
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-/*
- * This file is part of MPlayer.
- *
- * MPlayer 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 2 of the License, or
- * (at your option) any later version.
- *
- * MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifndef MPLAYER_M_STRUCT_H
-#define MPLAYER_M_STRUCT_H
-
-#include <stddef.h>
-#include <inttypes.h>
-
-#include "core/bstr.h"
-
-/// \defgroup OptionsStruct Options struct
-/// \ingroup Options
-/// An API to manipulate structs using m_option.
-///@{
-
-/// \file m_struct.h
-
-struct m_option;
-
-/// Struct definition
-typedef struct m_struct_st {
- /// For error messages and debugging
- const char* name;
- /// size of the whole struct
- unsigned int size;
- /// Pointer to a struct filled with the default settings
- const void* defaults;
- /// Field list.
- /** The p field of the \ref m_option struct must contain the offset
- * of the member in the struct (use M_ST_OFF macro for this).
- */
- const struct m_option* fields;
-} m_struct_t;
-
-
-/// Get the offset of a struct field.
-/** \param struct_type Struct type.
- * \param member Name of the field.
- * \return The offset of the field in bytes.
- */
-#define M_ST_OFF (void *)(uintptr_t)offsetof
-
-/// Get a pointer to a struct field.
-/** \param struct_p Pointer to the struct.
- * \param struct_offset Offset of the field in the struct.
- * \return Pointer to the struct field.
- */
-#define M_ST_MB_P(struct_p, struct_offset) \
- ((void *)((char *)(struct_p) + (uintptr_t)(struct_offset)))
-
-/// Access a struct field at a given offset.
-/** \param member_type Type of the field.
- * \param struct_p Pointer to the struct.
- * \param struct_offset Offset of the field in the struct.
- * \return The struct field at the given offset.
- */
-#define M_ST_MB(member_type, struct_p, struct_offset) \
- (*(member_type*) M_ST_MB_P ((struct_p), (struct_offset)))
-
-
-
-/// Allocate the struct and set it to the defaults.
-/** \param st Struct definition.
- * \return The newly allocated object set to default.
- */
-void*
-m_struct_alloc(const m_struct_t* st);
-
-/// Set a field of the struct.
-/** \param st Struct definition.
- * \param obj Pointer to the struct to set.
- * \param field Name of the field to set.
- * \param param New value of the field.
- * \return 0 on error, 1 on success.
- */
-int m_struct_set(const m_struct_t *st, void *obj, const char *field,
- struct bstr param);
-
-/// Free an allocated struct.
-/** \param st Struct definition.
- * \param obj Pointer to the struct to copy.
- */
-void
-m_struct_free(const m_struct_t* st, void* obj);
-
-/// Get a field description.
-/** \param st Struct definition.
- * \param f Name of the field.
- * \return The \ref m_option struct describing the field or NULL if not found.
- */
-const struct m_option*
-m_struct_get_field(const m_struct_t* st,const char* f);
-
-///@}
-
-#endif /* MPLAYER_M_STRUCT_H */