Subversion Repositories planix.SVN

#include <u.h>
#include <libc.h>
#include <auth.h>
#include <fcall.h>
#include <thread.h>
#include "9p.h"

static void
incfidref(void *v)
{
        Fid *f;

        f = v;
        if(f)
                incref(&f->ref);
}

Fidpool*
allocfidpool(void (*destroy)(Fid*))
{
        Fidpool *f;

        f = emalloc9p(sizeof *f);
        f->map = allocmap(incfidref);
        f->destroy = destroy;
        return f;
}

void
freefidpool(Fidpool *p)
{
        freemap(p->map, (void(*)(void*))p->destroy);
        free(p);
}

Fid*
allocfid(Fidpool *pool, ulong fid)
{
        Fid *f;

        f = emalloc9p(sizeof *f);
        f->fid = fid;
        f->omode = -1;
        f->pool = pool;

        incfidref(f);
        incfidref(f);
        if(caninsertkey(pool->map, fid, f) == 0){
                closefid(f);
                closefid(f);
                return nil;
        }

        return f;
}

Fid*
lookupfid(Fidpool *pool, ulong fid)
{
        return lookupkey(pool->map, fid);
}

void
closefid(Fid *f)
{
        if(decref(&f->ref) == 0) {
                if(f->rdir)
                        closedirfile(f->rdir);
                if(f->pool->destroy)
                        f->pool->destroy(f);
                if(f->file)
                        closefile(f->file);
                free(f->uid);
                free(f);
        }
}

Fid*
removefid(Fidpool *pool, ulong fid)
{
        return deletekey(pool->map, fid);
}