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Viewing changes to src/io/io_private.h

  • Committer: Package Import Robot
  • Author(s): Dominique Dumont
  • Date: 2014-04-26 08:41:44 UTC
  • mfrom: (1.1.20)
  • Revision ID: package-import@ubuntu.com-20140426084144-ycocevtjth7nij5s
Tags: 6.3.0-1
Imported Upstream version 6.3.0

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src/io/io_private.h
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/*
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Copyright (C) 2001-2008, Parrot Foundation.
 
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Copyright (C) 2001-2014, Parrot Foundation.
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=head1 NAME
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#define BUFFER_USED_SIZE(b) ((size_t)((b)->buffer_end - (b)->buffer_start))
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#define BUFFER_FREE_HEAD_SPACE(b) ((b)->buffer_start - (b)->buffer_ptr)
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#define BUFFER_FREE_END_SPACE(b) ((b)->buffer_size - ((b)->buffer_end - (b)->buffer_ptr))
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#define BUFFER_CAN_BE_NORMALIZED(b) (((size_t)BUFFER_FREE_HEAD_SPACE(b)) > ((size_t)BUFFER_USED_SIZE(b)))
 
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#define BUFFER_CAN_BE_NORMALIZED(b) \
 
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    (((size_t)BUFFER_FREE_HEAD_SPACE(b)) > ((size_t)BUFFER_USED_SIZE(b)))
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#define BUFFER_ASSERT_SANITY(b) do { \
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        PARROT_ASSERT((b)->buffer_ptr <= (b)->buffer_start); \
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        PARROT_ASSERT((b)->buffer_start <= (b)->buffer_end); \
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        PARROT_ASSERT((b)->buffer_end <= (b)->buffer_ptr + (b)->buffer_size); \
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        PARROT_ASSERT(BUFFER_FREE_HEAD_SPACE(b) + BUFFER_USED_SIZE(b) + BUFFER_FREE_END_SPACE(b) == (b)->buffer_size); \
 
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        PARROT_ASSERT(BUFFER_FREE_HEAD_SPACE(b) + BUFFER_USED_SIZE(b) + BUFFER_FREE_END_SPACE(b) \
 
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                == (b)->buffer_size); \
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    } while (0);
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#define BUFFER_DBG_PRINT(b) do { \
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        fprintf(stderr, "\t%x [%x - %x]\n", (b)->buffer_ptr, (b)->buffer_start, (b)->buffer_end); \
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        fprintf(stderr, "\t\t(%d + %d + %d)\n", BUFFER_FREE_HEAD_SPACE(b), BUFFER_USED_SIZE(b), BUFFER_FREE_END_SPACE(b)); \
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        fprintf(stderr, "\t\t\t = %d\n", BUFFER_FREE_HEAD_SPACE(b) + BUFFER_USED_SIZE(b) + BUFFER_FREE_END_SPACE(b)); \
 
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        fprintf(stderr, "\t\t(%d + %d + %d)\n", \
 
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                BUFFER_FREE_HEAD_SPACE(b), BUFFER_USED_SIZE(b), BUFFER_FREE_END_SPACE(b)); \
 
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        fprintf(stderr, "\t\t\t = %d\n", \
 
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                BUFFER_FREE_HEAD_SPACE(b) + BUFFER_USED_SIZE(b) + BUFFER_FREE_END_SPACE(b)); \
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    } while (0);
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/* Get an editable version of the IO_VTABLE structure, typically used during
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   vtable initialization. */
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#define IO_EDITABLE_IO_VTABLE(i, idx) ((IO_VTABLE *)(void *)(&((i)->piodata->vtables[(idx)])))
 
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#define IO_EDITABLE_IO_VTABLE(i, idx) (IO_VTABLE *)(&((i)->piodata->vtables[(idx)]))
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/* HEADERIZER BEGIN: src/io/utilities.c */
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    ARGMOD(PMC *handle),
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    ARGIN(const IO_VTABLE *vtable),
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    ARGMOD_NULLOK(IO_BUFFER *read_buffer),
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    ARGMOD_NULLOK(IO_BUFFER * write_buffer))
 
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    IO_BUFFER * write_buffer)
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        __attribute__nonnull__(1)
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        __attribute__nonnull__(2)
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        __attribute__nonnull__(3)
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        FUNC_MODIFIES(*handle)
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        FUNC_MODIFIES(*read_buffer)
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        FUNC_MODIFIES(* write_buffer);
 
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        FUNC_MODIFIES(*read_buffer);
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PARROT_WARN_UNUSED_RESULT
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PARROT_CANNOT_RETURN_NULL