Programming Perl

Programming PerlSearch this book
Previous: 3.2.145 shmgetChapter 3
Next: 3.2.147 shmwrite

3.2.146 shmread

shmread ID, VAR, POS, SIZE

This function reads from the shared memory segment ID starting at position POS for size SIZE (by attaching to it, copying out, and detaching from it). VAR must be a variable that will hold the data read. The function returns true if successful, or false if there is an error. On error, it puts the error code into $!. This function is available only on machines supporting System V IPC.

Previous: 3.2.145 shmgetProgramming PerlNext: 3.2.147 shmwrite
3.2.145 shmgetBook Index3.2.147 shmwrite