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#include "record.h"
#include "check.h"
#include "memmgr.h"
#include <cmsis_os2.h>
#include <m-string.h>
#include <m-dict.h>
#define FURI_RECORD_FLAG_READY (0x1)
typedef struct {
osEventFlagsId_t flags;
void* data;
size_t holders_count;
} FuriRecordData;
DICT_DEF2(FuriRecordDataDict, string_t, STRING_OPLIST, FuriRecordData, M_POD_OPLIST)
typedef struct {
osMutexId_t mutex;
FuriRecordDataDict_t records;
} FuriRecord;
static FuriRecord* furi_record = NULL;
void furi_record_init() {
furi_record = malloc(sizeof(FuriRecord));
furi_record->mutex = osMutexNew(NULL);
furi_check(furi_record->mutex);
FuriRecordDataDict_init(furi_record->records);
}
static FuriRecordData* furi_record_data_get_or_create(string_t name_str) {
furi_assert(furi_record);
FuriRecordData* record_data = FuriRecordDataDict_get(furi_record->records, name_str);
if(!record_data) {
FuriRecordData new_record;
new_record.flags = osEventFlagsNew(NULL);
new_record.data = NULL;
new_record.holders_count = 0;
FuriRecordDataDict_set_at(furi_record->records, name_str, new_record);
record_data = FuriRecordDataDict_get(furi_record->records, name_str);
}
return record_data;
}
static void furi_record_lock() {
furi_check(osMutexAcquire(furi_record->mutex, osWaitForever) == osOK);
}
static void furi_record_unlock() {
furi_check(osMutexRelease(furi_record->mutex) == osOK);
}
bool furi_record_exists(const char* name) {
furi_assert(furi_record);
furi_assert(name);
bool ret = false;
string_t name_str;
string_init_set_str(name_str, name);
furi_record_lock();
ret = (FuriRecordDataDict_get(furi_record->records, name_str) != NULL);
furi_record_unlock();
string_clear(name_str);
return ret;
}
void furi_record_create(const char* name, void* data) {
furi_assert(furi_record);
string_t name_str;
string_init_set_str(name_str, name);
furi_record_lock();
// Get record data and fill it
FuriRecordData* record_data = furi_record_data_get_or_create(name_str);
furi_assert(record_data->data == NULL);
record_data->data = data;
osEventFlagsSet(record_data->flags, FURI_RECORD_FLAG_READY);
furi_record_unlock();
string_clear(name_str);
}
bool furi_record_destroy(const char* name) {
furi_assert(furi_record);
bool ret = false;
string_t name_str;
string_init_set_str(name_str, name);
furi_record_lock();
FuriRecordData* record_data = FuriRecordDataDict_get(furi_record->records, name_str);
furi_assert(record_data);
if(record_data->holders_count == 0) {
furi_check(osOK == osEventFlagsDelete(record_data->flags));
FuriRecordDataDict_erase(furi_record->records, name_str);
ret = true;
}
furi_record_unlock();
string_clear(name_str);
return ret;
}
void* furi_record_open(const char* name) {
furi_assert(furi_record);
string_t name_str;
string_init_set_str(name_str, name);
furi_record_lock();
FuriRecordData* record_data = furi_record_data_get_or_create(name_str);
record_data->holders_count++;
furi_record_unlock();
// Wait for record to become ready
furi_check(
osEventFlagsWait(
record_data->flags,
FURI_RECORD_FLAG_READY,
osFlagsWaitAny | osFlagsNoClear,
osWaitForever) == FURI_RECORD_FLAG_READY);
string_clear(name_str);
return record_data->data;
}
void furi_record_close(const char* name) {
furi_assert(furi_record);
string_t name_str;
string_init_set_str(name_str, name);
furi_record_lock();
FuriRecordData* record_data = FuriRecordDataDict_get(furi_record->records, name_str);
furi_assert(record_data);
record_data->holders_count--;
furi_record_unlock();
string_clear(name_str);
}
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