v/vlib/http/download_mac.v

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// Copyright (c) 2019 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
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module http
import os
type downloadfn fn (written int)
type download_finished_fn fn ()
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struct DownloadStruct {
mut:
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stream voidptr
written int
cb downloadfn
}
fn download_cb(ptr voidptr, size, nmemb size_t, userp voidptr) int {
mut data := &DownloadStruct(userp)
written := C.fwrite(ptr, size, nmemb, data.stream)
data.written += written
#data->cb(data->written); // TODO
return written
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}
fn download_file_with_progress(url, out string, cb, cb_finished download_finished_fn) {
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curl := C.curl_easy_init()
if isnil(curl) {
return
}
cout := out.cstr()
fp := C.fopen(cout, 'wb')
C.curl_easy_setopt(curl, CURLOPT_URL, url.cstr())
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C.curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, download_cb)
data := &DownloadStruct {
stream:fp
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cb: cb
}
C.curl_easy_setopt(curl, CURLOPT_WRITEDATA, data)
mut d := 0.0
C.curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &d)
C.curl_easy_perform(curl)
C.curl_easy_cleanup(curl)
C.fclose(fp)
#cb_finished(); // TODO
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}
fn download_file(url, out string) {
download_file_with_progress(url, out, empty, empty)
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}
fn empty() {
}