- Intorduce and use a message type for VFS_GETDENTS, VFS_READ,
VFS_WRITE.
- Some cleanup to related functions where vir_bytes are replaced (and
casted to/from, in parameter definition and local variables as well.
This allow to see more clearly which function receives unsafe
(pointer) values, or at least values which are not supposed to be
valid in the address space of VFS. The current patch does so only
for the minimal amount of functions which are concerned with the
introduction of the new message type.
Change-Id: I0cdca97409c4016d02fae067b48bf55d37572c5c
- introduce new call numbers, names, and field aliases;
- initialize request messages to zero for all ABI calls;
- format callnr.h in the same way as com.h;
- redo call tables in both servers;
- remove param.h namespace pollution in the servers;
- make brk(2) go to VM directly, rather than through PM;
- remove obsolete BRK, UTIME, and WAIT calls;
- clean up path copying routine in VFS;
- move remaining system calls from libminlib to libc;
- correct some errno-related mistakes in libc routines.
Change-Id: I2d8ec5d061cd7e0b30c51ffd77aa72ebf84e2565
There is no need to pass pointers around when there is a structure
available that already stores other similar state, such as m_in.
Change-Id: I3164c5c55c71f443688103d1f0756c086eb05974
m_out is shared between threads as the reply message, and it can happen
results get overwritten by another thread before the reply is sent. This
change
. makes m_out local to the message handling function,
declared on the stack of the caller
. forces callers of reply() to give it a message, or
declare the reply message has no significant fields except
for the return code by calling replycode()
Change-Id: Id06300083a63c72c00f34f86a5c7d96e4bbdf9f6
REQ_PEEK behaves just like REQ_READ except that it does not copy
data anywhere, just obtains the blocks from the FS into the cache.
To be used by the future mmap implementation.
Change-Id: I1b56de304f0a7152b69a72c8962d04258adb44f9
