lock « linux « C File Q&A

1. fcntl, lockf, which is better to use for file locking?    stackoverflow.com

Looking for information regarding the advantages and disadvantages of both fcntl and lockf for file locking. For example which is better to use for portability? I am currently coding a linux ...

2. file lock leases via NFS v4 in C    stackoverflow.com

does anybody know how to use the fancy file locking features of NFS v4? (described in e.g. About the NFS protocol (scroll down)). supposedly NFS v4 supports file lock ...

3. Why just file locking in multi-user systems is not sufficient?    stackoverflow.com

Ritchie claims that file locking is not sufficient to prevent the confusion caused by programs such as editors that make a copy of a file while editing and then write the ...

4. How can I lock a file from a program started as a cron job on Linux?    stackoverflow.com

I use fcntl in my codes to lock file and unlock to practice like mutex in windows... I start my app in linux manually, i got right result, with the app runs ...

5. File Locking vs. Semaphores    stackoverflow.com

Just out of curiosity, what is the preferred way to achieve interprocess synchronization on Linux? The sem*(2) family of system calls seem to have a very clunky and dated interface, while ...

6. File locks for linux    stackoverflow.com

I tried using temp files:

char *temp = tempnam(NULL, "myapp_");
printf("Tempname: %s", temp)     // Prints /tmp/myapp_random
while (1) { }

7. How to detect, if any other entity/process is writing a file, in Linux?    stackoverflow.com

Please note that, I don't have any control over the target file. Some other process is writing that file. I just want to copy the file when other process completes the ...

8. I need file lock mechanism in Linux platform    daniweb.com