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60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
#include <libk/assert.h>
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#include <libk/list.h>
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#include <libk/rbtree.h>
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#include <libk/std.h>
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#include <libk/string.h>
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#include <mm/liballoc.h>
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#include <mm/pmm.h>
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#include <proc/mutex.h>
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#include <proc/proc.h>
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#include <proc/procgroup.h>
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#include <proc/resource.h>
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#include <sync/spin_lock.h>
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#include <sys/debug.h>
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struct proc_resource* proc_find_resource (struct procgroup* procgroup, int rid) {
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spin_lock_ctx_t ctxpg;
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struct proc_resource* resource = NULL;
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spin_lock (&procgroup->lock, &ctxpg);
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rbtree_find (struct proc_resource, &procgroup->resource_tree, rid, resource, resource_tree_link,
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rid);
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spin_unlock (&procgroup->lock, &ctxpg);
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return resource;
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}
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struct proc_resource* proc_create_resource_mutex (struct procgroup* procgroup, int rid) {
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spin_lock_ctx_t ctxpg;
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struct proc_resource* resource;
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resource = proc_find_resource (procgroup, rid);
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if (resource != NULL)
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return resource;
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resource = malloc (sizeof (*resource));
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if (resource == NULL)
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return NULL;
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memset (resource, 0, sizeof (*resource));
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resource->lock = SPIN_LOCK_INIT;
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resource->ops.cleanup = &proc_cleanup_resource_mutex;
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resource->u.mutex.resource = resource;
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resource->rid = rid;
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resource->type = PR_MUTEX;
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spin_lock (&procgroup->lock, &ctxpg);
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rbtree_insert (struct proc_resource, &procgroup->resource_tree, &resource->resource_tree_link,
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resource_tree_link, rid);
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spin_unlock (&procgroup->lock, &ctxpg);
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return resource;
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}
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bool proc_delete_resource (struct proc_resource* resource) {
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bool reschedule = resource->ops.cleanup (resource);
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free (resource);
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return reschedule;
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}
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