//## int System.select(int[] readsock, int[] writesock, int[] exceptsock, long timeoutSec, long timeoutUSec);
static KMETHOD System_Select(KonohaContext *kctx, KonohaStack* sfp)
{
kArray *a1 = sfp[1].asArray;
kArray *a2 = sfp[2].asArray;
kArray *a3 = sfp[3].asArray;
int nfd = getNfd(a1, a2, a3 );
fd_set rfds, wfds, efds;
fd_set *rfd = toFd(&rfds, a1 );
fd_set *wfd = toFd(&wfds, a2 );
fd_set *efd = toFd(&efds, a3 );
struct timeval tv;
tv.tv_sec = (long)sfp[4].intValue;
tv.tv_usec = (long)sfp[5].intValue;
int ret = select(nfd+1, rfd, wfd, efd, &tv );
if(ret > 0) {
fromFd(kctx, rfd, a1 );
fromFd(kctx, wfd, a2 );
fromFd(kctx, efd, a3 );
}
else {
if(ret < 0 ) {
OLDTRACE_SWITCH_TO_KTrace(_SystemFault,
LogText("@", "select"),
LogText("perror", strerror(errno))
);
}
// TODO::error or timeout is socket list all clear [pending]
KLIB kArray_Clear(kctx, a1, 0);
KLIB kArray_Clear(kctx, a2, 0);
KLIB kArray_Clear(kctx, a3, 0);
}
KReturnUnboxValue(ret);
}
int copyFile(const char *fromPath, const char *toPath) {
auto start = std::chrono::steady_clock::now();
android::base::unique_fd fromFd(open(fromPath, O_RDONLY));
if (fromFd == -1) {
PLOG(ERROR) << "Failed to open copy from " << fromPath;
return -1;
}
android::base::unique_fd toFd(open(toPath, O_CREAT | O_WRONLY, FILE_PERM));
if (toFd == -1) {
PLOG(ERROR) << "Failed to open copy to " << toPath;
return -1;
}
off_t offset = 0;
struct stat sstat = {};
if (stat(fromPath, &sstat) == -1)
return -1;
off_t length = sstat.st_size;
int ret = 0;
while (offset < length) {
ssize_t transfer_length = std::min(length - offset, (off_t) FILE_COPY_SIZE);
ret = sendfile(toFd, fromFd, &offset, transfer_length);
if (ret != transfer_length) {
ret = -1;
PLOG(ERROR) << "Copying failed!";
break;
}
}
auto end = std::chrono::steady_clock::now();
std::chrono::duration<double> diff = end - start;
LOG(DEBUG) << "Copied a file with MTP. Time: " << diff.count() << " s, Size: " << length <<
", Rate: " << ((double) length) / diff.count() << " bytes/s";
chown(toPath, getuid(), FILE_GROUP);
return ret == -1 ? -1 : 0;
}
