Commit graph

8 commits

Author SHA1 Message Date
Ben Gras
1561067ee4 Grant system dynamic-only. 2006-06-30 14:40:29 +00:00
Ben Gras
59bedc2074 let dynamic allocation of table work 2006-06-27 14:15:47 +00:00
Ben Gras
607fb6bf7f Add a flag to grants system indicating a slot is VALID; so a slot
can be reserved (USED), while toggling VALID on and off.
2006-06-27 12:19:45 +00:00
Ben Gras
a587273c56 . expanded grant manipulation interface to more direct
manipulation
. made fs allocate a grant for every ioctl, even if no data
  is being copied, in order to disambiguate concurrent ioctls
  on the same minor
2006-06-26 16:08:42 +00:00
Ben Gras
3b814d36d1 Rename paramctl to setgrant. 2006-06-23 15:35:05 +00:00
Ben Gras
002922fa4c New kernel call, SYS_PARAMCTL, that sets parameters of the caller
and is therefore unprivileged. Used to set grant tables.
2006-06-23 15:07:41 +00:00
Ben Gras
0e9c6932c4 use malloc() + copy + free() instead of realloc() 2006-06-23 12:07:41 +00:00
Ben Gras
9df1183b94 . removed const from putenv() for g++
. added safecopies.c:
  these are library functions to maintain grant tables in own address space
. sys_safecopy.c:
  interfaces to kernel calls to perform safe copy functions in from or to
  foreign process
. changes in i/o fields (type merged with request) reflected in
  library functions (sys_out.c, sys_vinb.c, sys_vinl.c, sys_vinw.c,
  sys_voutb.c, sys_voutl.c, sys_voutw.c)
. type merged with request in sys_sdevio, also now accepts offset which
  is used when a grant is specified (the _DIO_SAFE subtype)
. system printf() function changed to send DIAGNOSTICS_S messages, which
  specify a grant id instead of a direct address for the buffer to be
  printed; tty and log can then safecopy the buffer
2006-06-20 08:45:04 +00:00