大约有 482 项符合查询结果（耗时：0.0181秒） [XML]
IOCTL Linux device driver [closed]
...to return the current font or to set the font to a new one.
int ioctl(int fd, int request, ...)
fd is file descriptor, the one returned by open;
request is request code. e.g GETFONT will get the current font from the printer, SETFONT will set the font on the printer;
the third argument is void *...
unix - head AND tail of file
...il. This requires using either the '>( list )' feature of bash (+ /dev/fd/N):
( COMMAND | tee /dev/fd/3 | head ) 3> >( tail )
or using /dev/fd/N (or /dev/stderr) plus subshells with complicated redirection:
( ( seq 1 100 | tee /dev/fd/2 | head 1>&3 ) 2>&1 | tail ) 3>&a...
Simulating tremor (from e.g. Parkinson's Disease) with the mouse on a webpage?
...ain loop:
int main()
{
struct input_event event, event_end;
int fd = open("/dev/input/event4", O_RDWR);
long ma = getInteger("Enter max amplitude [points, 0..50]: ", 0, 50);
long ta = getInteger("Enter max wait time [usecs , 0..200000]: ", 0, 200000);
if (fd < 0)
{
...
Can I change the checkbox size using CSS?
... 1em;
height: 1em;
margin: 0;
border: none;
background-color: #3b88fd;
}
input[type=radio]:checked + label:after{
position: absolute;
content: '';
left: -1.3em;
top: 0;
width: 1em;
height: 1em;
margin: 0;
border: none;
background-color: white;
border-radius: 50%;
tran...
How can I get the list of files in a directory using C or C++?
...g> names;
string search_path = folder + "/*.*";
WIN32_FIND_DATA fd;
HANDLE hFind = ::FindFirstFile(search_path.c_str(), &fd);
if(hFind != INVALID_HANDLE_VALUE) {
do {
// read all (real) files in current folder
// , delete '!' read other 2 de...
'git' is not recognized as an internal or external command
...nder:
C:\Users\<YOUR USERNAME>\AppData\Local\GitHub\PortableGit_8810fd5c2c79c73adcc73fd0825f3b32fdb816e7\cmd
Expand this path, and add it to PATH.
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How to get subarray from array?
... this.length + 1 - (end * -1));
};
Then:
var bigArr = ["a", "b", "c", "fd", "ze"];
Test1:
bigArr.subarray(1, -1);
< ["b", "c", "fd", "ze"]
Test2:
bigArr.subarray(2, -2);
< ["c", "fd"]
Test3:
bigArr.subarray(2);
< ["c", "fd","ze"]
Might be easier for developers coming from...
A non-blocking read on a subprocess.PIPE in Python
... out.close()
p = Popen(['myprogram.exe'], stdout=PIPE, bufsize=1, close_fds=ON_POSIX)
q = Queue()
t = Thread(target=enqueue_output, args=(p.stdout, q))
t.daemon = True # thread dies with the program
t.start()
# ... do other things here
# read line without blocking
try: line = q.get_nowait() # ...
git cherry-pick says “…38c74d is a merge but no -m option was given”
... upstream. when I cherry-pick the following commits however I get stuck on fd9f578 where git says:
5 Answers
...
Linux: is there a read or recv from socket with timeout?
...timeval tv;
tv.tv_sec = timeout_in_seconds;
tv.tv_usec = 0;
setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof tv);
// WINDOWS
DWORD timeout = timeout_in_seconds * 1000;
setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout, sizeof timeout);
// MAC OS X (ident...