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Grant system dynamic-only.

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This commit is contained in:
Ben Gras
2006-06-30 14:40:29 +00:00
parent b654c02f55
commit 1561067ee4
10 changed files with 33 additions and 78 deletions
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11
lib/sysutil/kputc.c
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@@ -25,21 +25,24 @@ int c;
#define PRINTPROCS (sizeof(procs)/sizeof(procs[0]))
int procs[] = OUTPUT_PROCS_ARRAY;
static int firstprint = 1;
static cp_grant_t printgrant_buffer[PRINTPROCS];
static cp_grant_id_t printgrants[PRINTPROCS];
int p;
if(firstprint) {
for(p = 0; procs[p] != NONE; p++) {
printgrants[p] = GRANT_INVALID;
}
firstprint = 0;
/* First time? Initialize grant table;
* Grant printing processes read copy access to our
* print buffer. (So buffer can't be on stack!)
* print buffer forever. (So buffer can't be on stack!)
*/
cpf_preallocate(printgrant_buffer, PRINTPROCS);
for(p = 0; procs[p] != NONE; p++) {
printgrants[p] = cpf_grant_direct(procs[p], print_buf,
sizeof(print_buf), CPF_READ);
}
firstprint = 0;
}
for(p = 0; procs[p] != NONE; p++) {