2a8463e2b8
It is useful to run tests which generate shell output and check that it is correct. Update the existing 'dummy' backend to support this. It works by retaining the output in a small buffer so that it can be read and checked by the test. Signed-off-by: Simon Glass <sjg@chromium.org>
126 lines
2.5 KiB
C
126 lines
2.5 KiB
C
/*
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* Shell backend used for testing
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*
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* Copyright (c) 2018 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <shell/shell_dummy.h>
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#include <init.h>
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SHELL_DUMMY_DEFINE(shell_transport_dummy);
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SHELL_DEFINE(shell_dummy, CONFIG_SHELL_PROMPT_DUMMY, &shell_transport_dummy, 1,
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0, SHELL_FLAG_OLF_CRLF);
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static int init(const struct shell_transport *transport,
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const void *config,
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shell_transport_handler_t evt_handler,
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void *context)
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{
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struct shell_dummy *sh_dummy = (struct shell_dummy *)transport->ctx;
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if (sh_dummy->initialized) {
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return -EINVAL;
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}
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sh_dummy->initialized = true;
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return 0;
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}
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static int uninit(const struct shell_transport *transport)
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{
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struct shell_dummy *sh_dummy = (struct shell_dummy *)transport->ctx;
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if (!sh_dummy->initialized) {
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return -ENODEV;
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}
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sh_dummy->initialized = false;
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return 0;
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}
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static int enable(const struct shell_transport *transport, bool blocking)
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{
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struct shell_dummy *sh_dummy = (struct shell_dummy *)transport->ctx;
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if (!sh_dummy->initialized) {
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return -ENODEV;
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}
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return 0;
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}
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static int write(const struct shell_transport *transport,
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const void *data, size_t length, size_t *cnt)
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{
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struct shell_dummy *sh_dummy = (struct shell_dummy *)transport->ctx;
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size_t store_cnt;
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if (!sh_dummy->initialized) {
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*cnt = 0;
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return -ENODEV;
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}
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store_cnt = length;
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if (sh_dummy->len + store_cnt >= sizeof(sh_dummy->buf)) {
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store_cnt = sizeof(sh_dummy->buf) - sh_dummy->len - 1;
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}
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memcpy(sh_dummy->buf + sh_dummy->len, data, store_cnt);
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sh_dummy->len += store_cnt;
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*cnt = length;
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return 0;
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}
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static int read(const struct shell_transport *transport,
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void *data, size_t length, size_t *cnt)
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{
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struct shell_dummy *sh_dummy = (struct shell_dummy *)transport->ctx;
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if (!sh_dummy->initialized) {
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return -ENODEV;
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}
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*cnt = 0;
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return 0;
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}
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const struct shell_transport_api shell_dummy_transport_api = {
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.init = init,
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.uninit = uninit,
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.enable = enable,
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.write = write,
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.read = read
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};
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static int enable_shell_dummy(struct device *arg)
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{
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ARG_UNUSED(arg);
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shell_init(&shell_dummy, NULL, true, true, LOG_LEVEL_INF);
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return 0;
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}
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SYS_INIT(enable_shell_dummy, POST_KERNEL, 0);
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const struct shell *shell_backend_dummy_get_ptr(void)
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{
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return &shell_dummy;
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}
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const char *shell_backend_dummy_get_output(const struct shell *shell,
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size_t *sizep)
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{
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struct shell_dummy *sh_dummy;
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sh_dummy = (struct shell_dummy *)shell->iface->ctx;
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sh_dummy->buf[sh_dummy->len] = '\0';
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*sizep = sh_dummy->len;
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sh_dummy->len = 0;
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return sh_dummy->buf;
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}
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