Non-blocking keyboard input
??? Surely there there is a one liner library solution for this? I have a program that spawns a thread for debugging information and uses the keyboard input which allows me to display the information. If I use getchar or readline then it blocks the thread. This is generally fine because that is all the thread does. The problem is that it also blocks the program termination as the main thread will not exit while the thread is running which is is because it's waiting on keyboard input stuck on getchar or fgetc or whatever. If I terminate the threads using thread_term then it terminates the program but the program then does not return the return code that it was successfully finished(because it was prematurely terminated by thread_term. Surely there is some type of peek for keyboards in D? I can't seem to get kbhit or because the library is not included(well, I tried to use one from dmc but it seemed to be invalid. snn.lib IIRC). This shouldn't be hard... yet it is.
curl :sending mail via SMTP
Greetings!
I was trying to translate an example code snippets from curl
which demonstrates how to sending an email via smtp using curl
api.The orignal c code works fine,but my D code failed at the
beginnig when it is running.
Appreicate for the help to figure me out what's wrong with the
code.
dmd v2.106.0 , VS community 2019,Win10 64bit
'''
call dmd -m64 curl.lib sendmail.d && sendmail
* No URL set!
curl_easy_perform() failed:URL using bad/illegal format or
missing URL
'''
D source:
'''
import core.stdc.stdio;
import core.stdc.string;
import core.stdc.stdlib;
import etc.c.curl;
//import std.conv;
//import std.string;
pragma(lib,"curl.lib");
const PASSWORD="real_pass_word";
const FROM_ADDR="sender_em...@add.ress";
const TO_ADDR="receiver_em...@add.ress";
const CC_ADDR="cc_copy_em...@add.ress";
const FROM_MAIL="sender_em...@add.ress";
const TO_MAIL="receiver_em...@add.ress";
const CC_MAIL="cc_copy_em...@add.ress";
const SMTP_VALUE="smtp://smtp-mail.outlook.com:25";//M$
outlook.com mail SMTP...
//static const char* payload_text=cast(const char*)(
enum contents=(
"To: " ~ TO_MAIL ~ "\r\n" ~
"From: " ~ FROM_MAIL ~ "\r\n" ~
"Cc: " ~ CC_MAIL ~ "\r\n" ~
"\r\n" ~
"Subject: SMTP example message" ~ "\r\n" ~
"\r\n" ~
"The body of the message starts here." ~ "\r\n" ~
"\r\n" ~
"It could be a lot of lines, could be MIME encoded,
whatever.\r\n\r\nGood Luck!\r\nGood Luck!" ~ "\r\n");
static const char* payload_text= cast(const char*)contents.ptr;
struct upload_status
{
size_t bytes_read;
}
static size_t payload_source(char* ptr,size_t size,size_t
nmemb,void* userp)
{
upload_status* upload_ctx=cast(upload_status*)userp;
//char* data;
size_t room=size*nmemb;
if((size==0)||(nmemb==0)||((size*nmemb)<1))
{
return 0;
}
const char* data=&payload_text[upload_ctx.bytes_read];
//const char* data=null;
//memcpy(cast(void*)data,cast(void*)payload_text,upload_ctx.bytes_read);
if(data)
{
size_t len=strlen(data);
if(room betterC ? no
void main()
{
CURL* curl;
CURLcode res=CurlError.ok;
curl_slist* recipents=null;
upload_status upload_ctx={0};
curl=curl_easy_init();
if(curl)
{
curl_easy_setopt(curl,CurlProto.smtp,SMTP_VALUE.ptr);
curl_easy_setopt(curl,CurlOption.username,FROM_MAIL.ptr);
curl_easy_setopt(curl,CurlOption.mail_from,FROM_ADDR.ptr);
curl_easy_setopt(curl,CurlOption.password,PASSWORD.ptr);
recipents=curl_slist_append(recipents,TO_ADDR.ptr);
recipents=curl_slist_append(recipents,CC_ADDR.ptr);
curl_easy_setopt(curl,CurlOption.mail_rcpt,recipents);
curl_easy_setopt(curl,CurlOption.readfunction,&payload_source);
curl_easy_setopt(curl,CurlOption.readdata,&upload_ctx);
curl_easy_setopt(curl,CurlOption.verbose,1);
curl_easy_setopt(curl,CurlOption.upload,1);
curl_easy_setopt(curl,CurlOption.use_ssl,CurlUseSSL.all);
curl_easy_setopt(curl,CurlOption.ssl_verifypeer,0);
res=curl_easy_perform(curl);
if(res!=CurlError.ok)
{
fprintf(stderr,"curl_easy_perform()
failed:%s\n",curl_easy_strerror(res));
}
curl_slist_free_all(recipents);
curl_easy_cleanup(curl);
}
getchar();
//return 0;
}
'''
Re: FileException when calling getTimes on a DirEntry
On Tuesday, 26 December 2023 at 21:09:05 UTC, Renato wrote: On Sunday, 24 December 2023 at 21:18:44 UTC, kdevel wrote: [...] I would have expected you asking questions like "Which program might have generated that symlink?", "How do I get the meta-data from the symlink and not from the file it points to ?" or "How do I handle that exception?". Who do you think you are to tell me how I should ask questions? In this thread I didn't tell you how you should ask questions. However, if there are any further questions regarding the topic of this thread don't hesitate to ask.
Re: FileException when calling getTimes on a DirEntry
On Sunday, 24 December 2023 at 21:18:44 UTC, kdevel wrote: On Sunday, 24 December 2023 at 20:00:15 UTC, Renato wrote: I asked what could be causing an Exception in my code to happen as that was quite unexpected. I would have expected you asking questions like "Which program might have generated that symlink?", "How do I get the meta-data from the symlink and not from the file it points to ?" or "How do I handle that exception?". Who do you think you are to tell me how I should ask questions? How pretentious can people get on these forums? If you don't like how someone asks a question, it's much nicer to just refrain from interacting. Does it make you feel better to shit on people's questions? It certainly didn't make me feel good at all to have to deal with your unwarranted, condescending tone.
Re: dlang.org/Learn "hello_world".sort.chain ...
On Tuesday, 26 December 2023 at 13:58:54 UTC, tony wrote: On Tuesday, 26 December 2023 at 11:19:29 UTC, Sergey wrote: Use typeid, instead of typeof Thanks! Got quite a type but I will worry about that later: std.range.SortedRange!(Result, "a < b").SortedRange Yes, because sort is returning special type, compatible with Ranges interface. You can add 'sort(...).array' and the type will become 'int[]' (or which types arrays were before). Ranges are specific things for D (one of the core feature of the lang and std), which can evaluated lazily. You can check some description how they are working in the documentation https://dlang.org/phobos/std_range.html
Re: dlang.org/Learn "hello_world".sort.chain ...
On Tuesday, 26 December 2023 at 11:19:29 UTC, Sergey wrote: Use typeid, instead of typeof Thanks! Got quite a type but I will worry about that later: std.range.SortedRange!(Result, "a < b").SortedRange
Re: dlang.org/Learn "hello_world".sort.chain ...
On Tuesday, 26 December 2023 at 10:53:10 UTC, Tony wrote:
I just typed in the program that is on the first page of Learn.
It has this line:
sort(chain(arr1, arr2, arr3));
I assigned that to a variable:
arr4 = sort(chain(arr1, arr2, arr3));
then printed it out
writefln("%s",arr4); // works
and then tried to print out the type of arr4:
writefln("%s",typeof(arr4));
and got this error:
// HelloWorld.d:25:19: error: cannot pass type
SortedRange!(Result, "a < b") as a function argument
What exactly is that type? Or maybe, what would it take to
understand what that type is?
Use typeid, instead of typeof
