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194
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1 #include "../context.h"
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2 #interface "file.h"
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3
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4 // ----
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5 // typedef struct inode<Impl, Isa> impl file {
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6 //
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7 // } inode;
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8 // ----
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9
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10 file* createinode(struct Context* cbc_context) {
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11 struct file* file = new file();
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12 struct inode* inode = new inode();
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13 file->file = (union Data*)inode;
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14 file->st = NULL;
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15 file->addr = NULL;
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16 file->n = 0;
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17 file->fd = 0;
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18 file->read = C_readinode;
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19 file->write = C_writeinode;
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20 file->close = C_closeinode;
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21 return file;
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22 }
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23 __code readinode(struct inode* file, char* addr, __code next(...)) {
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24
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25 goto next(...);
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26 }
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27
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28 __code writeinode(struct inode* file, char* addr, int n, __code next(...)) {
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29
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30 goto next(...);
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31 }
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32
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33 __code closeinode(struct inode* file,int fd, __code next(...)) {
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34
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198
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35 goto file->cbc_inodecolse(file->file, next);
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36 }
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37
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38 __code cbc_inodeclose(struct inode* inode, struct file* file, __code next(...)){
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39 struct file ff;
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40 acquire(*ftable.loc)
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41
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42 if (f->ref < 1) {
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43 goto cbc_context->kernel_error->panic("file close");
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44 }
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45 goto inode->cbc_inodeclose2(f,ff,next);
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194
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46 }
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198
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47
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48 __code cbc_inodeclose2(struct inode* inode, struct file* file, struct file* ff, __code next(...)){
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49 if (--f->ref > 0) {
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50 release(&ftable.lock);
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51 goto cbc_context->return();
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52 }
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53 goto inode->cbc_inodeclose3(f,ff,next);
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54 }
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55
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56 __code cbc_inodeclose3(struct inode* inode, struct file* file, struct file* ff, __code next(...)){
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57 *ff = *f;
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58 f->ref = 0;
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59 f->type = FD_NONE;
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60 relsease(&ftable.lock);
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61 struct inode* i = ff.inode;
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62
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63 goto inode->cbc_inodeclose4(i,next);
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64 }
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65
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66 __code cbc_inodeclose4(struct inode* inode,__code next(...)){
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67
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68
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69
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70 }
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