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Diffstat (limited to 'rpc.mdwn')
| -rw-r--r-- | rpc.mdwn | 15 |
1 files changed, 14 insertions, 1 deletions
@@ -9,7 +9,20 @@ Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled [[GNU Free Documentation License|/fdl]]."]]"""]] -RPC stands for remote procedure call. +RPC stands for remote procedure call. It is generally one userspace processes +communicating with another userspace process. For example, a user may use +emacs to open a text file for editing. On the Hurd, glibc turns the C function +call into appropriate RPC calls to ext2fs. It is important to remember that +gnumach's IPC facilitates this communication between emacs and ext2fs (with +the gnumach mach_msg () syscall: one to send the message and one to receive +the reply). + +It is also important to distinguish an RPC from a [[system call|system_call]]. +A system call, happens when a userspace process requests something of the kernel. +An RPC is generally one userspace process requesting something from another +userspace process. + + # See Also |