/*
* Copyright ( c ) 2022 , Google , Inc . All rights reserved
*
* Permission is hereby granted , free of charge , to any person obtaining
* a copy of this software and associated documentation files
* ( the " Software " ) , to deal in the Software without restriction ,
* including without limitation the rights to use , copy , modify , merge ,
* publish , distribute , sublicense , and / or sell copies of the Software ,
* and to permit persons to whom the Software is furnished to do so ,
* subject to the following conditions :
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND ,
* EXPRESS OR IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY , FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT .
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM , DAMAGES OR OTHER LIABILITY , WHETHER IN AN ACTION OF CONTRACT ,
* TORT OR OTHERWISE , ARISING FROM , OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE .
*/
#include <debug.h>
#include <err.h>
#include <sys/uio.h>
#include <trusty/io_handle.h>
#include <trusty/uio.h>
ssize_t trusty_writev(int fd, const struct iovec* iov, int iovcnt) {
bool should_output = LK_DEBUGLEVEL_INFO <= LK_LOGLEVEL;
io_handle_t* io_handle = fd_io_handle(fd);
if (io_handle == NULL) {
return ERR_BAD_HANDLE;
}
if (should_output) {
io_lock(io_handle);
}
ssize_t ret = 0 ;
ssize_t total_bytes = 0 ;
if (should_output) {
for (int i = 0 ; i < iovcnt; i++, iov++) {
if (iov == NULL) {
ret = ERR_INVALID_ARGS;
goto write_done;
}
ret = io_write(io_handle, (const void *)iov->iov_base, iov->iov_len);
if (ret < 0 ) {
goto write_done;
}
total_bytes += ret;
}
}
ret = total_bytes;
write_done:
if (should_output) {
io_write_commit(io_handle);
io_unlock(io_handle);
}
return ret;
}
Messung V0.5 in Prozent C=96 H=96 G=95
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-27)
¤
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