mirror of
https://github.com/nyanmisaka/mpp.git
synced 2025-09-26 21:15:53 +08:00
dee9bced95
Platform: General
Spec: all
Error case:
Constructors may be added after 65535(mpp_singleton_init)
ex: mpp_platform added after 65535 when mpp_soc is
refactored to c
Signed-off-by: Hongjin Li <vic.hong@rock-chips.com>
Signed-off-by: xiaoxu.chen <xiaoxu.chen@rock-chips.com>
Change-Id: If736904beb0cd64a3e4ae3b20fd72e1198646ac7
96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
/* SPDX-License-Identifier: Apache-2.0 OR MIT */
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/*
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* Copyright (c) 2024 Rockchip Electronics Co., Ltd.
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*/
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#define MODULE_TAG "mpp_singleton"
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#include <stdio.h>
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#include <stdlib.h>
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#include "mpp_env.h"
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#include "mpp_singleton.h"
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#define sgln_dbg(fmt, ...) \
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do { \
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if (sgln_debug) \
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printf(MODULE_TAG ": " fmt, ##__VA_ARGS__); \
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} while (0)
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static MppSingletonInfo sgln_info[MPP_SGLN_MAX_CNT] = {0};
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static rk_u64 sgln_mask = 0;
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static rk_u32 sgln_debug = 0;
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rk_s32 mpp_singleton_add(MppSingletonInfo *info, const char *caller)
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{
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mpp_env_get_u32("mpp_sgln_debug", &sgln_debug, 0);
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if (!info) {
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sgln_dbg("can not add NULL info at %s\n", caller);
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return rk_nok;
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}
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if (info->id >= MPP_SGLN_MAX_CNT) {
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sgln_dbg("id %d larger than max %d at %s\n", info->id, MPP_SGLN_MAX_CNT, caller);
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return rk_nok;
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}
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if (sgln_mask & (1 << info->id)) {
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sgln_dbg("info %d has been registered at %s\n", info->id, caller);
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return rk_nok;
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}
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sgln_info[info->id] = *info;
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sgln_mask |= (1 << info->id);
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sgln_dbg("info %2d %-12s registered at %s\n", info->id, info->name, caller);
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return rk_ok;
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}
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static void mpp_singleton_deinit(void)
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{
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rk_s32 i;
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sgln_dbg("deinit enter\n");
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/* NOTE: revert deinit order */
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for (i = MPP_SGLN_MAX_CNT - 1; i >= 0; i--) {
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if (sgln_mask & (1 << i)) {
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MppSingletonInfo *info = &sgln_info[i];
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if (info->deinit) {
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sgln_dbg("info %2d %-12s deinit start\n", info->id, info->name);
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info->deinit();
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sgln_dbg("info %2d %-12s deinit finish\n", info->id, info->name);
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}
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}
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}
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sgln_dbg("deinit leave\n");
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}
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__attribute__((constructor(65535))) static void mpp_singleton_init(void)
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{
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rk_s32 i;
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sgln_dbg("init enter\n");
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/* NOTE: call atexit first to avoid init crash but not deinit */
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atexit(mpp_singleton_deinit);
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for (i = 0; i < MPP_SGLN_MAX_CNT; i++) {
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if (sgln_mask & (1 << i)) {
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MppSingletonInfo *info = &sgln_info[i];
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if (info->init) {
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sgln_dbg("info %2d %-12s init start\n", info->id, info->name);
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info->init();
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sgln_dbg("info %2d %-12s init finish\n", info->id, info->name);
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}
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}
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}
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sgln_dbg("init leave\n");
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}
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