opencount | Track availability of public resources using a simple app | Authentication library
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QUESTION
I have the following act2.txt file for an email campaign:
...ANSWER
Answered 2021-May-14 at 07:22You need to think of this in a different way, you are not combining lists.
If an email was opened, that means it was also received. This means that your opened list is also your combined list.
After you realize that, all you have to do is copy the unopened emails to a result list for emails that ere not opened.
Go over the opened emails list and copy the subjects into a set, after that go over the received emails and check if the subject is in the set, if it is then do nothing. If the subject isn't in the set then copy it to unopened emails list.
It is a very simple piece of code:
QUESTION
I have implemented the Camera2 api. It works well on most devices, but I've got a few reports from users that it won't let them take pictures. I got logs from those users. All of them are getting a ERROR_CAMERA_DEVICE error in the onError method of the CameraDevice.StateCallback I pass in when opening the front facing camera. This error states that a fatal error has happened with the camera and it needs to be reopened to be used. https://developer.android.com/reference/android/hardware/camera2/CameraDevice.StateCallback#ERROR_CAMERA_DEVICE
I wrote code that reopens the camera, but every time, the error happens again.
Does anyone know why this might be happening and how I can fix it?
Here is some of the relevant implementation:
...ANSWER
Answered 2020-Apr-16 at 21:58I finally figured it out. The texture view default buffer size was using too large of a size. I fixed it by iterating over the array of output sizes from camera characteristics map and used the largest size that was under 960 x 1200
QUESTION
I am developing code for the corporate intranet. Once the base was built using arrow functions I tested in Internet Exploder. Discovering that it will not accept arrow functions. I am using React for this project and have since refactored all the code to use classic function calls.
It mostly works except for one minor glitch: I cannot access this from inside the function call.
Here is one example of code, although there are others:
...ANSWER
Answered 2020-Feb-06 at 17:38At the end of every function call I used .bind(this) to enable the function to use the external this rather than the internal.
QUESTION
I have tried many different queries that already given here, but it also shows previous year data, for example, if use this query
...ANSWER
Answered 2018-Sep-27 at 05:43Try something like this, after putting in the correct IDcolumn, just to verify for yourself the dates that are being returned
QUESTION
I have a script for sending emails in the background. The script runs in parallel to send out multiple emails simultaneously. It works basically like this, with a mixture of MySQL and PHP:
...ANSWER
Answered 2017-Dec-06 at 09:53InnoDB uses automatic row-level locking. You can get deadlocks even in the case of transactions that just insert or delete a single row. That is because these operations are not really “atomic”; they automatically set locks on the (possibly several) index records of the row inserted or deleted. dev.mysql.com/doc/refman/5.7/en/innodb-deadlocks-handling.html
QUESTION
I Am running a nested for loop in R. I have created a dataframe called dataframe from an SQL query. My data are arranged as groups of 3 databases. The following
CampaignGUID- this has a column by means of which I refer to other columns dataframe
...ANSWER
Answered 2017-Nov-24 at 16:20It's really hard to understand your code, however, here are a few issues I see:
Your for loop control statement is doing
for(i in length(nrow(df))){...
You should try to evaluatelength(nrow(df))
which returns just a length 1 vector. Thereforei
evaluates to 1. To solve this, do:for(i in 1:nrow(df)){...
You are not assigning your results of the query to a list. If you just re-run each iteration of the loop, it will overwrite your data. You'll need to do something like:
query_results <- list()
query_results[[i]] <- dbGetQuery(jobdbconn, sql1)
Your SQL filter is taking the raw form of i (or just the value of 1) in:
paste(...AND C.CampaignID =", i,sep="")
You'll need to actually set the SQL filter to the campaignGUID by:
paste(...AND C.CampaignID =", dataframe$CampaignGUID[i], ,sep="")
Overall, I would recommend evaluating each section of your code once manually and seeing the outputs before writing a for loop. Good luck
QUESTION
I am trying to write a simple character device/LKM that reads, writes, and seeks. I have been having a lot of issues with this, but have been working on it/troubleshooting for weeks and have been unable to get it to work properly. Currently, my module makes properly and mounts and unmounts properly, but if I try to echo to the device driver file the terminal crashes, and when i try to read from it using cat it returns killed.
Steps for this module:
First, I make the module by running make -C /lib/modules/$(uname -r)/build M=$PWD modules
For my kernel, uname -r is 4.10.17newkernel
I mount the module using sudo insmod simple_char_driver.ko
If I run lsmod, the module is listed
If I run dmesg, the KERN_ALERT in my init function "This device is now open" triggers correctly.
Additionally, if I run sudo rmmod, that functions "This device is now closed" KERN_ALERT also triggers correctly.
The module also shows up correctly in cat /proc/devices
I created the device driver file in /dev using sudo mknod -m 777 /dev/simple_char_driver c 240 0
Before making this file, I made sure that the 240 major number was not already in use.
My device driver c file has the following code:
...ANSWER
Answered 2017-Oct-29 at 23:04Your code in general leaves much to be desired, but what I can see at the moment is that your .write
implementation might be dubious. There are two possible mistakes - the absence of buffer boundaries check and disregard of null-termination which may lead to undefined behaviour of strlen()
.
First of all, you know the size of your buffer - BUFFER_SIZE
. Therefore, you should carry out a check that *offset + length < BUFFER_SIZE
. It should be <
and not <=
because anyhow the last byte shall be reserved for null-termination. So, such a check shall make the method return immediately if no space is available (else
branch or >=
). I can't say for sure whether you should return 0
to report that nothing has been written or use a negative value to return an error code, say, -ENOBUFS
or -ENOSPC
. Anyhow, the return value of the method is ssize_t
meaning that negative value may be returned.
Secondly, if your first check succeeds, your method shall calculate actual space available for writing. I.e., you can make use of MIN(A, B)
macro to do this. In other words, you'd better create a variable, say, nb_bytes_to_copy
and initialise it like nb_bytes_to_copy = MIN(BUFFER_SIZE - 1 - *offset, length)
so that you can use it later in copy_from_user()
call. If the user, say, requests to write 5
bytes of data starting at the offset of 1021
bytes, then your driver will allow to write only 2
bytes of the data - say, he
instead of hello
. Also, the return value shall be set to nb_bytes_to_copy
so that the caller will be able to detect the buffer space shortage.
Finally, don't forget about null termination. As soon as you've done with
QUESTION
I've been hunting around for a solution to my current issue so let me start with a template that has been dumped on my lap:
...ANSWER
Answered 2017-Oct-03 at 11:47Try adding one of these to your head
section:
or
QUESTION
I want to update the values of counts, but I am not able to do that..! I tried it, but it is update when I build a code...!
Here is a screenshot of a tableview:
Here is the code for this,
...ANSWER
Answered 2017-Jul-14 at 04:59You can create IBOutlet
for all labels which needs to be updated. Instead of reloading tableview on updating count you can update the count any where in your controller class. You can move all the code related to updating count in separate method and call this method whenever its required.
QUESTION
I'm setting up a newsletter for a client, but it continuously blows up images and won't read container widths. I've tried adding strict widths on every single layer and turing all divs into tables. Does anyone know why Outlook 2013 might not recognize CSS styles for containers? This only seems to happen in Outlook 2013 and I so far haven't been able to find a means of fixing this yet.
...ANSWER
Answered 2017-Oct-12 at 22:59Max-width does not work with Outlook. Your problems are happening in more than just Outlook 2013. It's the same issues in 2010, 2016 and Windows 10 Mail.
Try adding the width for table, td and images directly in the object and leave max-width for other email browsers that respect it. For instance:
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