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libsys: add sys_safememset()

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Arne Welzel 2012-09-22 20:02:14 +00:00 committed by Ben Gras
parent d8a89dcbe6
commit bf33a1c097
4 changed files with 27 additions and 4 deletions
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8
include/minix/com.h
View file

@ -560,15 +560,15 @@
#define SCP_SEG_OBSOLETE m2_i2 /* my own segment */
#define SCP_GID m2_i3 /* grant id */
#define SCP_OFFSET m2_l1 /* offset within grant */
#define SCP_ADDRESS m2_p1 /* my own address */
#define SCP_BYTES m2_l2 /* bytes from offset */
#define SCP_ADDRESS m2_p1 /* my own address */
#define SCP_BYTES m2_l2 /* bytes from offset */
/* SYS_SAFEMEMSET */
#define SMS_DST m2_i1 /* dst endpoint */
#define SMS_GID m2_i3 /* grant id */
#define SMS_OFFSET m2_l1 /* offset within grant */
#define SMS_BYTES m2_l2 /* bytes from offset */
#define SMS_PATTERN m2_i2 /* memset() pattern */
#define SMS_BYTES m2_l2 /* bytes from offset */
#define SMS_PATTERN m2_i2 /* memset() pattern */
/* Field names for SYS_VSAFECOPY* */
#define VSCP_VEC_ADDR m2_p1 /* start of vector */

3
include/minix/syslib.h
View file

@ -147,6 +147,9 @@ int sys_safecopyto(endpoint_t dest, cp_grant_id_t grant, vir_bytes
grant_offset, vir_bytes my_address, size_t bytes);
int sys_vsafecopy(struct vscp_vec *copyvec, int elements);
int sys_safememset(endpoint_t source, cp_grant_id_t grant, vir_bytes
grant_offset, int pattern, size_t bytes);
int sys_memset(endpoint_t who, unsigned long pattern,
phys_bytes base, phys_bytes bytes);

1
lib/libsys/Makefile
View file

@ -53,6 +53,7 @@ SRCS= \
sys_runctl.c \
sys_safecopy.c \
sys_safemap.c \
sys_safememset.c \
sys_schedctl.c \
sys_schedule.c \
sys_setalarm.c \

19
lib/libsys/sys_safememset.c Normal file
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@ -0,0 +1,19 @@
#include "syslib.h"
#include <minix/safecopies.h>
int sys_safememset(endpoint_t dst_e, cp_grant_id_t gr_id,
vir_bytes offset, int pattern, size_t len)
{
/* memset() a block of data using pattern */
message copy_mess;
copy_mess.SMS_DST = dst_e;
copy_mess.SMS_GID = gr_id;
copy_mess.SMS_OFFSET = (long) offset;
copy_mess.SMS_PATTERN = pattern;
copy_mess.SMS_BYTES = (long) len;
return(_kernel_call(SYS_SAFEMEMSET, &copy_mess));
}