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Diffstat (limited to 'vere/ext/nasm/include/saa.h')
| -rw-r--r-- | vere/ext/nasm/include/saa.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/vere/ext/nasm/include/saa.h b/vere/ext/nasm/include/saa.h new file mode 100644 index 0000000..9d939ef --- /dev/null +++ b/vere/ext/nasm/include/saa.h @@ -0,0 +1,94 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright 1996-2017 The NASM Authors - All Rights Reserved + * See the file AUTHORS included with the NASM distribution for + * the specific copyright holders. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following + * conditions are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * ----------------------------------------------------------------------- */ + +#ifndef NASM_SAA_H +#define NASM_SAA_H + +#include "compiler.h" + +/* + * Routines to manage a dynamic sequential-access array, under the + * same restriction on maximum mallocable block. This array may be + * written to in two ways: a contiguous chunk can be reserved of a + * given size with a pointer returned OR single-byte data may be + * written. The array can also be read back in the same two ways: + * as a series of big byte-data blocks or as a list of structures + * of a given size. + */ + +struct SAA { + /* + * members `end' and `elem_len' are only valid in first link in + * list; `rptr' and `rpos' are used for reading + */ + size_t elem_len; /* Size of each element */ + size_t blk_len; /* Size of each allocation block */ + size_t nblks; /* Total number of allocated blocks */ + size_t nblkptrs; /* Total number of allocation block pointers */ + size_t length; /* Total allocated length of the array */ + size_t datalen; /* Total data length of the array */ + char **wblk; /* Write block pointer */ + size_t wpos; /* Write position inside block */ + size_t wptr; /* Absolute write position */ + char **rblk; /* Read block pointer */ + size_t rpos; /* Read position inside block */ + size_t rptr; /* Absolute read position */ + char **blk_ptrs; /* Pointer to pointer blocks */ +}; + +struct SAA * never_null saa_init(size_t elem_len); /* 1 == byte */ +void saa_free(struct SAA *); +void *saa_wstruct(struct SAA *); /* return a structure of elem_len */ +void saa_wbytes(struct SAA *, const void *, size_t); /* write arbitrary bytes */ +size_t saa_wcstring(struct SAA *s, const char *str); /* write a C string */ +void saa_rewind(struct SAA *); /* for reading from beginning */ +void *saa_rstruct(struct SAA *); /* return NULL on EOA */ +const void *saa_rbytes(struct SAA *, size_t *); /* return 0 on EOA */ +void saa_rnbytes(struct SAA *, void *, size_t); /* read a given no. of bytes */ +/* random access */ +void saa_fread(struct SAA *, size_t, void *, size_t); +void saa_fwrite(struct SAA *, size_t, const void *, size_t); + +/* dump to file */ +void saa_fpwrite(struct SAA *, FILE *); + +/* Write specific-sized values */ +void saa_write8(struct SAA *s, uint8_t v); +void saa_write16(struct SAA *s, uint16_t v); +void saa_write32(struct SAA *s, uint32_t v); +void saa_write64(struct SAA *s, uint64_t v); +void saa_wleb128u(struct SAA *, int); /* write unsigned LEB128 value */ +void saa_wleb128s(struct SAA *, int); /* write signed LEB128 value */ +void saa_writeaddr(struct SAA *, uint64_t, size_t); + +#endif /* NASM_SAA_H */ |