92e440c77d
Co-authored-by: あく <alleteam@gmail.com>
148 lines
3.6 KiB
C
148 lines
3.6 KiB
C
#include "record.h"
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#include "check.h"
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#include "memmgr.h"
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#include "mutex.h"
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#include "event_flag.h"
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#include <m-string.h>
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#include <m-dict.h>
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#include <toolbox/m_cstr_dup.h>
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#define FURI_RECORD_FLAG_READY (0x1)
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typedef struct {
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FuriEventFlag* flags;
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void* data;
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size_t holders_count;
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} FuriRecordData;
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DICT_DEF2(FuriRecordDataDict, const char*, M_CSTR_DUP_OPLIST, FuriRecordData, M_POD_OPLIST)
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typedef struct {
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FuriMutex* mutex;
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FuriRecordDataDict_t records;
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} FuriRecord;
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static FuriRecord* furi_record = NULL;
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static FuriRecordData* furi_record_get(const char* name) {
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return FuriRecordDataDict_get(furi_record->records, name);
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}
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static void furi_record_put(const char* name, FuriRecordData* record_data) {
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FuriRecordDataDict_set_at(furi_record->records, name, *record_data);
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}
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static void furi_record_erase(const char* name, FuriRecordData* record_data) {
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furi_event_flag_free(record_data->flags);
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FuriRecordDataDict_erase(furi_record->records, name);
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}
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void furi_record_init() {
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furi_record = malloc(sizeof(FuriRecord));
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furi_record->mutex = furi_mutex_alloc(FuriMutexTypeNormal);
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furi_check(furi_record->mutex);
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FuriRecordDataDict_init(furi_record->records);
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}
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static FuriRecordData* furi_record_data_get_or_create(const char* name) {
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furi_assert(furi_record);
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FuriRecordData* record_data = furi_record_get(name);
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if(!record_data) {
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FuriRecordData new_record;
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new_record.flags = furi_event_flag_alloc();
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new_record.data = NULL;
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new_record.holders_count = 0;
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furi_record_put(name, &new_record);
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record_data = furi_record_get(name);
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}
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return record_data;
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}
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static void furi_record_lock() {
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furi_check(furi_mutex_acquire(furi_record->mutex, FuriWaitForever) == FuriStatusOk);
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}
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static void furi_record_unlock() {
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furi_check(furi_mutex_release(furi_record->mutex) == FuriStatusOk);
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}
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bool furi_record_exists(const char* name) {
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furi_assert(furi_record);
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furi_assert(name);
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bool ret = false;
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furi_record_lock();
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ret = (furi_record_get(name) != NULL);
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furi_record_unlock();
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return ret;
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}
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void furi_record_create(const char* name, void* data) {
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furi_assert(furi_record);
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furi_record_lock();
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// Get record data and fill it
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FuriRecordData* record_data = furi_record_data_get_or_create(name);
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furi_assert(record_data->data == NULL);
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record_data->data = data;
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furi_event_flag_set(record_data->flags, FURI_RECORD_FLAG_READY);
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furi_record_unlock();
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}
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bool furi_record_destroy(const char* name) {
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furi_assert(furi_record);
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bool ret = false;
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furi_record_lock();
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FuriRecordData* record_data = furi_record_get(name);
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furi_assert(record_data);
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if(record_data->holders_count == 0) {
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furi_record_erase(name, record_data);
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ret = true;
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}
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furi_record_unlock();
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return ret;
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}
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void* furi_record_open(const char* name) {
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furi_assert(furi_record);
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furi_record_lock();
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FuriRecordData* record_data = furi_record_data_get_or_create(name);
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record_data->holders_count++;
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furi_record_unlock();
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// Wait for record to become ready
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furi_check(
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furi_event_flag_wait(
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record_data->flags,
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FURI_RECORD_FLAG_READY,
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FuriFlagWaitAny | FuriFlagNoClear,
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FuriWaitForever) == FURI_RECORD_FLAG_READY);
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return record_data->data;
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}
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void furi_record_close(const char* name) {
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furi_assert(furi_record);
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furi_record_lock();
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FuriRecordData* record_data = furi_record_get(name);
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furi_assert(record_data);
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record_data->holders_count--;
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furi_record_unlock();
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}
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