Recent questions tagged POSIX

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posix ere - Why is `ereg` deprecated in PHP?

Why is ereg deprecated in PHP? I had a lot of functions which used this, now they always give warning. What is the alternative of this too? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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posix - pthread functions "_np" suffix

What does "_np" suffix mean here: pthread_mutex_timedlock_np or in macros PTHREAD_MUTEX_TIMED_NP Upd: From glibc2.2 ... _NP functions/macro? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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posix - In Python, why won't something print without a newline?

import time import sys sys.stdout.write("1") time.sleep(5) print("2") will print "12" after 5 seconds import ... " after 5 seconds Why is this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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posix - In Python, why won't something print without a newline?

import time import sys sys.stdout.write("1") time.sleep(5) print("2") will print "12" after 5 seconds import ... " after 5 seconds Why is this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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posix - Split JSON array into separate files/objects

I have JSON exported from Cassandra in this format. [ { "correlationId": "2232845a8556cd3219e46ab8", "leg": ... separator? Thanks, Reddy See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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posix - Is there anyway to modify stat information like mtime or ctime manually in Python or any language at all?

I am trying the following code: os.stat(path_name)[stat.ST_CTIME] = ctime However, this gives the following error ... to modify ctime? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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posix - Function overloading in C

Today, looking at the man page for open(), I've noticed this function is 'overloaded': int open(const char ... behind the scenes an int ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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posix - Example of realpath function in C

I'm looking for an example of how to use the realpath function in a C program. I can't seem to find one ... in any of my C programming books. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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posix - What does ECONNRESET mean in the context of an AF_LOCAL socket?

I understand that for TCP sockets ECONNRESET has got something to do with RST packets. But I've seen ECONNRESET ... or write() throwing EPIPE? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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posix - How to use nanosleep() in C? What are `tim.tv_sec` and `tim.tv_nsec`?

What is the use of tim.tv_sec and tim.tv_nsec in the following? How can I sleep execution for 500000 microseconds? ... "); return 0; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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673 views

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posix - popen equivalent in c++

Is their any C popen() equivalent in C++ ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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posix - Why does SIGPIPE exist?

From my understanding, SIGPIPE can only occur as the result of a write(), which can (and does) return -1 ... a result, am I missing something? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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posix - Getting the highest allocated file descriptor

Is there a portable way (POSIX) to get the highest allocated file descriptor number for the current process? ... rely on FD_CLOEXEC either. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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