/*
* Global initialization of the reclaim data structures, mainly
* the max_files variable. This HAS to be called by some task before
* the first task that utilizes this exit's, preferrably before any
* task makes the first use of this library.
*/
STATUS reclaim_init(void)
{
int *mp;
SYM_TYPE type;
struct task_data *tdp;
int i;
if (!hook_added) {
/* race condition */
++hook_added;
/* Try to find the maxFiles value */
if (symFindByNameAndType(sysSymTbl, MAX_FILES_SYM_NAME, (char **)&mp,
&type,
N_EXT | N_BSS, N_EXT | N_BSS) == OK ||
symFindByNameAndType(sysSymTbl, MAX_FILES_SYM_NAME, (char **)&mp,
&type,
N_EXT | N_DATA, N_EXT | N_DATA) == OK) {
#ifdef DEBUG
fdprintf(2, "Found maxFiles=%d\n", *mp);
#endif
if (*mp <= FD_SETSIZE)
max_files = *mp;
else
max_files = FD_SETSIZE;
}
if (task_data != NULL && task_data->max_files != max_files) {
/* fix our own iff we have one */
if ((tdp = (struct task_data *)
realloc(task_data, sizeof(struct task_data) +
max_files*sizeof(FILE *))) != NULL) {
task_data = tdp;
for (i = task_data->max_files; i < max_files; i++)
task_data->open_fps[i] = NULL;
task_data->max_files = max_files;
}
}
/* Make sure taskVariables are deleted AFTER our hook is run. */
taskVarInit();
if(taskDeleteHookAdd((FUNCPTR)save_reclaim) != OK) {
fprintf(stderr,
"Panic: taskDeleteHook cannot be added for reclaim.\n");
return ERROR;
}
return OK;
} else
return ERROR;
}
void usrKernelExtraInit (void)
{
hashLibInit (); /* hash library */
symLibInit (); /* Set of routines to manipulate symbols and symbol tables */
taskVarInit (); /* allow global variables to be made private to a task */
envLibInit (ENV_VAR_USE_HOOKS); /* unix compatable environment variables */
sigInit (POSIX_SIGNAL_MODE); /* signals */
sigeventLibInit (); /* Kernel signal event support. Required for SIGEV_THREAD support in RTP. */
mqPxLibInit (MQ_HASH_SIZE); /* POSIX message queues */
pthreadLibInit (); /* Support for POSIX threads in the kernel */
semPxLibInit (); /* POSIX semaphores */
sigqueueInit (NUM_SIGNAL_QUEUES); /* queued signals */
clockLibInit (); /* POSIX clocks */
timerLibInit (); /* POSIX timers */
timerOpenInit (); /* open/close/unlink timer modules */
intVecTableWriteProtect (); /* write-protect vector table */
syscallHookLibInit (); /* Add hook routines to be called on system calls. */
}
