minix/test/safecopy/inc.h
Cristiano Giuffrida c5b309ff07 Merge of Wu's GSOC 09 branch (src.20090525.r4372.wu)
Main changes:
- COW optimization for safecopy.
- safemap, a grant-based interface for sharing memory regions between processes.
- Integration with safemap and complete rework of DS, supporting new data types
  natively (labels, memory ranges, memory mapped ranges).
- For further information:
  http://wiki.minix3.org/en/SummerOfCode2009/MemoryGrants

Additional changes not included in the original Wu's branch:
- Fixed unhandled case in VM when using COW optimization for safecopy in case
  of a block that has already been shared as SMAP.
- Better interface and naming scheme for sys_saferevmap and ds_retrieve_map
  calls.
- Better input checking in syslib: check for page alignment when creating
  memory mapping grants.
- DS notifies subscribers when an entry is deleted.
- Documented the behavior of indirect grants in case of memory mapping.
- Test suite in /usr/src/test/safeperf|safecopy|safemap|ds/* reworked
  and extended.
- Minor fixes and general cleanup.
- TO-DO: Grant ids should be generated and managed the way endpoints are to make
sure grant slots are never misreused.
2010-01-14 15:24:16 +00:00

50 lines
1.4 KiB
C

#define _SYSTEM
#define _MINIX
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <minix/config.h>
#include <minix/com.h>
#include <minix/type.h>
#include <minix/const.h>
#include <minix/endpoint.h>
#include <minix/safecopies.h>
#include <minix/syslib.h>
#include <minix/sysutil.h>
#include <errno.h>
/* TEST_PAGE_SHIFT =
* log2(CLICK_SIZE * TEST_PAGE_NUM) = CLICK_SHIFT + log2(TEST_PAGE_NUM)
*/
#define TEST_PAGE_NUM 8
#define TEST_PAGE_SHIFT 15
#define BUF_SIZE (TEST_PAGE_NUM * CLICK_SIZE)
#define BUF_START 100
#define FIFO_REQUESTOR "/usr/src/test/safecopy/1fifo"
#define FIFO_GRANTOR "/usr/src/test/safecopy/2fifo"
#define FIFO_WAIT(fid) { \
int a; \
if(read(fid, &a, sizeof(a)) != sizeof(a)) \
panic(__FILE__, "FIFO_WAIT failed", NO_NUM); \
}
#define FIFO_NOTIFY(fid) { \
int a = 1; \
if(write(fid, &a, sizeof(a)) != sizeof(a)) \
panic(__FILE__, "FIFO_NOTIFY failed", NO_NUM); \
}
#define DEBUG 0
#if DEBUG
# define dprint printf
#else
# define dprint (void)
#endif