mirror of
https://github.com/cookiengineer/audacity
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74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/*
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Copyright 2011-2012 David Robillard <http://drobilla.net>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/**
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@file uri_table.h A toy URI map/unmap implementation.
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This file contains function definitions and must only be included once.
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*/
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#ifndef URI_TABLE_H
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#define URI_TABLE_H
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typedef struct {
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char** uris;
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size_t n_uris;
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} URITable;
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static void
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uri_table_init(URITable* table)
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{
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table->uris = NULL;
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table->n_uris = 0;
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}
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static void
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uri_table_destroy(URITable* table)
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{
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free(table->uris);
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}
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static LV2_URID
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uri_table_map(LV2_URID_Map_Handle handle,
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const char* uri)
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{
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URITable* table = (URITable*)handle;
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for (size_t i = 0; i < table->n_uris; ++i) {
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if (!strcmp(table->uris[i], uri)) {
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return i + 1;
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}
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}
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const size_t len = strlen(uri);
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table->uris = (char**)realloc(table->uris, ++table->n_uris * sizeof(char*));
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table->uris[table->n_uris - 1] = malloc(len + 1);
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memcpy(table->uris[table->n_uris - 1], uri, len + 1);
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return table->n_uris;
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}
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static const char*
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uri_table_unmap(LV2_URID_Map_Handle handle,
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LV2_URID urid)
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{
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URITable* table = (URITable*)handle;
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if (urid > 0 && urid <= table->n_uris) {
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return table->uris[urid - 1];
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}
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return NULL;
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}
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#endif /* URI_TABLE_H */
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