libburnia/libisofs
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Added little macros to simplify IsoNode type hierarchy handling.

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This commit is contained in:
Vreixo Formoso
2008-01-30 00:13:18 +01:00
parent 0beee602b0
commit 04c6bf39b4
2 changed files with 20 additions and 5 deletions
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15
libisofs/libisofs.h
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@ -25,6 +25,21 @@ typedef struct Iso_Symlink IsoSymlink;
typedef struct Iso_File IsoFile;
typedef struct Iso_Special IsoSpecial;
/* macros to check node type */
#define ISO_NODE_IS_DIR(n) (iso_node_get_type(n) == LIBISO_DIR)
#define ISO_NODE_IS_FILE(n) (iso_node_get_type(n) == LIBISO_FILE)
#define ISO_NODE_IS_SYMLINK(n) (iso_node_get_type(n) == LIBISO_SYMLINK)
#define ISO_NODE_IS_SPECIAL(n) (iso_node_get_type(n) == LIBISO_SPECIAL)
#define ISO_NODE_IS_BOOTCAT(n) (iso_node_get_type(n) == LIBISO_BOOT)
/* macros for safe downcasting */
#define ISO_DIR(n) ((IsoDir*)(ISO_NODE_IS_DIR(n) ? n : NULL))
#define ISO_FILE(n) ((IsoFile*)(ISO_NODE_IS_FILE(n) ? n : NULL))
#define ISO_SYMLINK(n) ((IsoSymlink*)(ISO_NODE_IS_SYMLINK(n) ? n : NULL))
#define ISO_SPECIAL(n) ((IsoSpecial*)(ISO_NODE_IS_SPECIAL(n) ? n : NULL))
#define ISO_NODE(n) ((IsoNode*)n)
typedef struct Iso_Dir_Iter IsoDirIter;
typedef struct el_torito_boot_image ElToritoBootImage;