ssize_t sendfile(int outfd, int infd, off_t *offset, size_t count)
{
#if defined(CONFIG_NET_TCP) && CONFIG_NSOCKET_DESCRIPTORS > 0
/* Check the destination file descriptor: Is it a (probable) file
* descriptor? Check the source file: Is it a normal file?
*/
if ((unsigned int)outfd >= CONFIG_NFILE_DESCRIPTORS &&
(unsigned int)infd < CONFIG_NFILE_DESCRIPTORS)
{
FAR struct filelist *list;
/* This appears to be a file-to-socket transfer. Get the thread-
* specific file list.
*/
list = sched_getfiles();
DEBUGASSERT(list);
/* Then let net_sendfile do the work. */
return net_sendfile(outfd, &list->fl_files[infd], offset, count);
}
else
#endif
{
/* No... then this is probably a file-to-file transfer. The generic
* lib_sendfile() can handle that case.
*/
return lib_sendfile(outfd, infd, offset, count);
}
}
ssize_t sendfile(int outfd, int infd, off_t *offset, size_t count)
{
#if defined(CONFIG_NET_TCP) && CONFIG_NSOCKET_DESCRIPTORS > 0
/* Check the destination file descriptor: Is it a (probable) file
* descriptor? Check the source file: Is it a normal file?
*/
if ((unsigned int)outfd >= CONFIG_NFILE_DESCRIPTORS &&
(unsigned int)infd < CONFIG_NFILE_DESCRIPTORS)
{
FAR struct file *filep;
/* This appears to be a file-to-socket transfer. Get the file
* structure.
*/
filep = fs_getfilep(fd);
if (!filep)
{
/* The errno value has already been set */
return ERROR;
}
/* Then let net_sendfile do the work. */
return net_sendfile(outfd, filep, offset, count);
}
else
#endif
{
/* No... then this is probably a file-to-file transfer. The generic
* lib_sendfile() can handle that case.
*/
return lib_sendfile(outfd, infd, offset, count);
}
}