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Changeset 7171760 in mainline for uspace/lib/c/generic/vfs/vfs.c


Ignore:
Timestamp:
2011-08-18T12:05:00Z (10 years ago)
Author:
Jakub Jermar <jakub@…>
Branches:
lfn, master
Children:
b33ec43
Parents:
866e627
Message:

Rework the way how open files are passed from parent task to child.

  • Instead of passing fdi_node_t's, pass handles directly using the IPC_M_STATE_CHANGE_AUTHORIZE mechanism.
  • Remove open_node(), fd_node(), fdi_node_t.
  • Replace fopen_node() with fopen_handle().
  • Replace fnode() with fhandle().
  • The child task does not synchronize with VFS yet.
File:
1 edited

Legend:

Unmodified
Added
Removed
  • uspace/lib/c/generic/vfs/vfs.c

    r866e627 r7171760  
    329329}
    330330
    331 int open_node(fdi_node_t *node, int oflag)
    332 {
    333         async_exch_t *exch = vfs_exchange_begin();
    334        
    335         ipc_call_t answer;
    336         aid_t req = async_send_4(exch, VFS_IN_OPEN_NODE, node->fs_handle,
    337             node->devmap_handle, node->index, oflag, &answer);
    338        
    339         vfs_exchange_end(exch);
    340 
    341         sysarg_t rc;
    342         async_wait_for(req, &rc);
    343        
    344         if (rc != EOK)
    345                 return (int) rc;
    346        
    347         return (int) IPC_GET_ARG1(answer);
    348 }
    349 
    350331int close(int fildes)
    351332{
     
    819800}
    820801
    821 int fd_node(int fildes, fdi_node_t *node)
    822 {
    823         struct stat stat;
    824         int rc = fstat(fildes, &stat);
    825        
    826         if (rc == EOK) {
    827                 node->fs_handle = stat.fs_handle;
    828                 node->devmap_handle = stat.devmap_handle;
    829                 node->index = stat.index;
    830         }
    831        
    832         return rc;
    833 }
    834 
    835802int dup2(int oldfd, int newfd)
    836803{
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