size_t ts_fwrite(ts_file_t *fp, const char *buf, int len)
{
TS_TRY(fp && buf && len > 0);
switch(fp->type) {
case TS_FILE_STD: return(fwrite((const void*)buf, 1, len, fp->fp.std));
case TS_FILE_ZLB: return(gzwrite(fp->fp.zlb, (const void*)buf, len));
case TS_FILE_XZ: return(xzwrite(fp->fp.xz, (const void*) buf, len));
default:
(void)ts_warn(stderr, "\n");
goto fail;
}
fail:
return(-1);
}
/*@-globuse@*/
static ssize_t xzdWrite(void * cookie, const char * buf, size_t count)
/*@globals fileSystem, internalState @*/
/*@modifies fileSystem, internalState @*/
{
FD_t fd = c2f(cookie);
XZFILE *xzfile;
ssize_t rc = 0;
if (fd == NULL || fd->bytesRemain == 0) return 0; /* XXX simulate EOF */
if (fd->ndigests > 0 && count > 0) fdUpdateDigests(fd, (void *)buf, count);
xzfile = xzdFileno(fd);
fdstat_enter(fd, FDSTAT_WRITE);
rc = xzwrite(xzfile, (void *)buf, count);
DBGIO(fd, (stderr, "==>\txzdWrite(%p,%p,%u) rc %lx %s\n", cookie, buf, (unsigned)count, (unsigned long)rc, fdbg(fd)));
if (rc < 0) {
fd->errcookie = "Lzma: encoding error";
} else if (rc > 0) {
fdstat_exit(fd, FDSTAT_WRITE, rc);
}
return rc;
}