emscripten/tests/fetch/example_idb_store.cpp at incoming · JavaScriptIOT/emscripten · GitHub

40 lines (35 loc) · 1000 Bytes

#include <string.h>

#include <stdio.h>

#include <stdlib.h>

#include <time.h>

#include <emscripten/fetch.h>

void success(emscripten_fetch_t *fetch)

{

printf("IDB store succeeded.\n");

emscripten_fetch_close(fetch);

}

void failure(emscripten_fetch_t *fetch)

{

printf("IDB store failed.\n");

emscripten_fetch_close(fetch);

}

void persistFileToIndexedDB(const char *outputFilename, uint8_t *data, size_t numBytes)

{

emscripten_fetch_attr_t attr;

emscripten_fetch_attr_init(&attr);

strcpy(attr.requestMethod, "EM_IDB_STORE");

attr.attributes = EMSCRIPTEN_FETCH_REPLACE | EMSCRIPTEN_FETCH_PERSIST_FILE;

attr.requestData = (char *)data;

attr.requestDataSize = numBytes;

attr.onsuccess = success;

attr.onerror = failure;

emscripten_fetch(&attr, outputFilename);

}

int main()

{

// Create data

uint8_t *data = (uint8_t*)malloc(10240);

srand(time(NULL));

for(int i = 0; i < 10240; ++i) data[i] = (uint8_t)rand();

persistFileToIndexedDB("outputfile.dat", data, 10240);

}

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