Dmitry V. Levin
b93d52fe3d
strace is now provided under the terms of the GNU Lesser General Public License version 2.1 or later, see COPYING for more details. strace test suite is now provided under the terms of the GNU General Public License version 2 or later, see tests/COPYING for more details.
82 lines
1.6 KiB
C
82 lines
1.6 KiB
C
/*
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* Copyright (c) 2017 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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