82 lines
1.6 KiB
C
82 lines
1.6 KiB
C
/*
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* Copyright (c) 2017-2018 The strace developers.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*/
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#include "defs.h"
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struct dyxlat {
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size_t used;
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size_t allocated;
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struct xlat *xlat;
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};
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#define MARK_END(xlat) \
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do { \
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(xlat).val = 0; \
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(xlat).str = 0; \
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} while (0)
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struct dyxlat *
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dyxlat_alloc(const size_t nmemb)
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{
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struct dyxlat *const dyxlat = xmalloc(sizeof(*dyxlat));
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dyxlat->used = 1;
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dyxlat->allocated = nmemb;
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dyxlat->xlat = xgrowarray(NULL, &dyxlat->allocated, sizeof(struct xlat));
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MARK_END(dyxlat->xlat[0]);
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return dyxlat;
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}
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void
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dyxlat_free(struct dyxlat *const dyxlat)
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{
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size_t i;
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for (i = 0; i < dyxlat->used - 1; ++i) {
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free((void *) dyxlat->xlat[i].str);
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dyxlat->xlat[i].str = NULL;
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}
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free(dyxlat->xlat);
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dyxlat->xlat = NULL;
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free(dyxlat);
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}
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const struct xlat *
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dyxlat_get(const struct dyxlat *const dyxlat)
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{
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return dyxlat->xlat;
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}
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void
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dyxlat_add_pair(struct dyxlat *const dyxlat, const uint64_t val,
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const char *const str, const size_t len)
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{
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size_t i;
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for (i = 0; i < dyxlat->used - 1; ++i) {
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if (dyxlat->xlat[i].val == val) {
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if (strncmp(dyxlat->xlat[i].str, str, len) == 0
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&& dyxlat->xlat[i].str[len] == '\0')
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return;
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free((void *) dyxlat->xlat[i].str);
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dyxlat->xlat[i].str = xstrndup(str, len);
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return;
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}
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}
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if (dyxlat->used >= dyxlat->allocated)
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dyxlat->xlat = xgrowarray(dyxlat->xlat, &dyxlat->allocated,
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sizeof(struct xlat));
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dyxlat->xlat[dyxlat->used - 1].val = val;
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dyxlat->xlat[dyxlat->used - 1].str = xstrndup(str, len);
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MARK_END(dyxlat->xlat[dyxlat->used]);
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dyxlat->used++;
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}
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