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91 lines
1.7 KiB
C
91 lines
1.7 KiB
C
/* PipeWire */
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/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
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/* SPDX-License-Identifier: MIT */
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#include "config.h"
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <jack/uuid.h>
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#include <pipewire/pipewire.h>
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SPA_EXPORT
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jack_uuid_t jack_client_uuid_generate (void)
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{
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static uint32_t uuid_cnt = 0;
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jack_uuid_t uuid = 0x2; /* JackUUIDClient */;
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uuid = (uuid << 32) | ++uuid_cnt;
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pw_log_debug("uuid %"PRIu64, uuid);
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return uuid;
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}
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SPA_EXPORT
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jack_uuid_t jack_port_uuid_generate (uint32_t port_id)
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{
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jack_uuid_t uuid = 0x1; /* JackUUIDPort */
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uuid = (uuid << 32) | (port_id + 1);
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pw_log_debug("uuid %d -> %"PRIu64, port_id, uuid);
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return uuid;
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}
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SPA_EXPORT
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uint32_t jack_uuid_to_index (jack_uuid_t id)
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{
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return (id & 0xffffff) - 1;
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}
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SPA_EXPORT
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int jack_uuid_compare (jack_uuid_t id1, jack_uuid_t id2)
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{
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if (id1 == id2)
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return 0;
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if (id1 < id2)
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return -1;
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return 1;
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}
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SPA_EXPORT
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void jack_uuid_copy (jack_uuid_t* dst, jack_uuid_t src)
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{
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spa_return_if_fail(dst != NULL);
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*dst = src;
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}
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SPA_EXPORT
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void jack_uuid_clear (jack_uuid_t *id)
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{
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spa_return_if_fail(id != NULL);
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*id = 0;
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}
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SPA_EXPORT
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int jack_uuid_parse (const char *buf, jack_uuid_t *id)
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{
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spa_return_val_if_fail(buf != NULL, -EINVAL);
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spa_return_val_if_fail(id != NULL, -EINVAL);
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if (sscanf (buf, "%" PRIu64, id) == 1) {
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if (*id < (0x1LL << 32)) {
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/* has not type bits set - not legal */
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return -1;
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}
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return 0;
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}
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return -1;
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}
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SPA_EXPORT
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void jack_uuid_unparse (jack_uuid_t id, char buf[JACK_UUID_STRING_SIZE])
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{
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spa_return_if_fail(buf != NULL);
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snprintf (buf, JACK_UUID_STRING_SIZE, "%" PRIu64, id);
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}
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SPA_EXPORT
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int jack_uuid_empty (jack_uuid_t id)
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{
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return id == 0;
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}
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