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DEV: cli_device(renamed after ATmodem) added

master
Christos Choutouridis 3 years ago
parent
f7c904e9c2
commit
cd23eb4963
5 changed files with 666 additions and 421 deletions
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  1. +7
    -7
      include/com/sequencer.h
  2. +0
    -368
      include/drv/ATmodem.h
  3. +493
    -0
      include/drv/cli_device.h
  4. +5
    -3
      test/Makefile
  5. +161
    -43
      test/tests/cli_device.cpp

+ 7
- 7
include/com/sequencer.h View File

@@ -225,7 +225,7 @@ class sequencer {
* \param stream2 What we search [The record's token] * \param stream2 What we search [The record's token]
* \return True on success, false otherwise * \return True on success, false otherwise
*/ */
static constexpr auto equals = [](const string_view stream1, const string_view stream2) -> bool {
static constexpr auto equals = [](const string_view stream1, const string_view stream2) noexcept -> bool {
return (stream1 == stream2); return (stream1 == stream2);
}; };
@@ -236,7 +236,7 @@ class sequencer {
* \param prefix What we search [The record's token] * \param prefix What we search [The record's token]
* \return True on success, false otherwise * \return True on success, false otherwise
*/ */
static constexpr auto starts_with = [](const string_view stream, const string_view prefix) -> bool {
static constexpr auto starts_with = [](const string_view stream, const string_view prefix) noexcept -> bool {
return (stream.rfind(prefix, 0) != string_view::npos); return (stream.rfind(prefix, 0) != string_view::npos);
}; };
@@ -265,18 +265,18 @@ class sequencer {
* \param needle What we search [The record's token] * \param needle What we search [The record's token]
* \return True on success, false otherwise * \return True on success, false otherwise
*/ */
static constexpr auto contains = [](const string_view haystack, const string_view needle) -> bool {
static constexpr auto contains = [](const string_view haystack, const string_view needle) noexcept -> bool {
return (haystack.find(needle) != string_view::npos); return (haystack.find(needle) != string_view::npos);
}; };
//! Always false predicate //! Always false predicate
static constexpr auto always_true = [](const string_view s1, const string_view s2) -> bool {
static constexpr auto always_true = [](const string_view s1, const string_view s2) noexcept -> bool {
(void)s1; (void)s2; (void)s1; (void)s2;
return true; return true;
}; };
//! Always false predicate //! Always false predicate
static constexpr auto always_false = [](const string_view s1, const string_view s2) -> bool {
static constexpr auto always_false = [](const string_view s1, const string_view s2) noexcept -> bool {
(void)s1; (void)s2; (void)s1; (void)s2;
return false; return false;
}; };
@@ -302,7 +302,7 @@ class sequencer {
size_t get_ (Data_t* data) { return impl().get (data); } size_t get_ (Data_t* data) { return impl().get (data); }
size_t contents_ (Data_t* data) { return impl().contents(data); } size_t contents_ (Data_t* data) { return impl().contents(data); }
size_t put_ (const Data_t* data, size_t n) { return impl().put (data, n); } size_t put_ (const Data_t* data, size_t n) { return impl().put (data, n); }
clock_t clock_ () { return impl().clock(); }
clock_t clock_ () noexcept { return impl().clock(); }
//! @} //! @}
//! \name Private functionality //! \name Private functionality
@@ -364,7 +364,7 @@ class sequencer {
public: public:
//! \return The buffer size of the sequencer //! \return The buffer size of the sequencer
constexpr size_t size() const { return N; }
constexpr size_t size() const noexcept { return N; }
/*! /*!
* \brief * \brief


+ 0
- 368
include/drv/ATmodem.h View File

@@ -1,368 +0,0 @@
/*!
* \file drv/ATmodem.h
* \brief
* ATmodem driver functionality as CRTP base class
*
* \copyright Copyright (C) 2021 Christos Choutouridis <christos@choutouridis.net>
*
* <dl class=\"section copyright\"><dt>License</dt><dd>
* The MIT License (MIT)
*
* 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.
* </dd></dl>
*/
#ifndef TBX_DRV_ATmodem_H_
#define TBX_DRV_ATmodem_H_
#define __cplusplus 201703L
#include <core/core.h>
#include <core/crtp.h>
#include <cont/equeue.h>
#include <cont/range.h>
#include <com/sequencer.h>
#include <cstring>
#include <cstdlib>
#include <algorithm>
#include <utility>
#include <atomic>
namespace tbx {
/*!
* \class BG95_base
* \brief
*
* \example implementation example
* \code
* \endcode
*
* \tparam Impl_t
* \tparam Cont_t
* \tparam N
* \tparam Delimiter
*/
template<typename Impl_t, size_t N, char Delimiter ='\n'>
class ATmodem
: public sequencer<ATmodem<Impl_t, N, Delimiter>, char, N>{
_CRTP_IMPL(Impl_t);
// local type dispatch
using base_type = sequencer<ATmodem, char, N>;
//! \name Public types
//! @{
public:
using value_type = char;
using pointer_type = char*;
using size_type = size_t;
using string_view = typename base_type::string_view;
using action_t = typename base_type::action_t;
using control_t = typename base_type::control_t;
using match_ft = typename base_type::match_ft;
using handler_ft = typename base_type::handler_ft;
template<size_t Nm>
using script_t = typename base_type::template script_t<Nm>;
//! Publish delimiter
constexpr static char delimiter = Delimiter;
//! Required types for inetd async handler operation
//! @{
struct inetd_handler_t {
string_view token;
match_ft match;
handler_ft handler;
};
template <size_t Nm>
using inetd_handlers = std::array<inetd_handler_t, Nm>;
//! @}
//! @}
//! \name Constructor / Destructor
//!@{
protected:
//!< \brief A default constructor from derived only
ATmodem() noexcept = default;
~ATmodem () = default; //!< \brief Allow destructor from derived only
ATmodem(const ATmodem&) = delete; //!< No copies
ATmodem& operator= (const ATmodem&) = delete; //!< No copy assignments
//!@}
//! \name Sequencer interface requirements
//! Forwarded to implementer the calls and cascade the the incoming channel
//! sequencer::get --resolved--> this->receive() --calls--> impl().get()
//! @{
friend base_type;
private:
size_t get_ (char* data) {
return impl().get (data);
}
size_t get (char* data) {
return receive (data);
}
size_t put (const char* data, size_t n) {
return impl().put (data, n);
}
size_t contents (char* data) {
return impl().contents(data);
}
clock_t clock () {
return impl().clock();
}
//! @}
//! \name Private functionality
//! @{
private:
template <typename... Ts>
struct typelist {
using type = typelist; //!< act as identity
};
template <typename L>
struct front_impl {
using type = void;
};
template <typename Head, typename... Tail>
struct front_impl<typelist<Head, Tail...>> {
using type = Head;
};
//! Return the first element in \c meta::typelist \c List.
//!
//! Complexity \f$ O(1) \f$.
template <typename List>
using front = typename front_impl<List>::type;
template<typename T>
void extract (const char* str, T* value) {
static_assert (
std::is_same_v<std::remove_cv_t<T>, int>
|| std::is_same_v<std::remove_cv_t<T>, double>
|| std::is_same_v<std::remove_cv_t<T>, char>,
"Not supported conversion type.");
if constexpr (std::is_same_v<std::remove_cv_t<T>, int>) {
*value = std::atoi(str);
} else if (std::is_same_v<std::remove_cv_t<T>, double>) {
*value = std::atof(str);
} else if (std::is_same_v<std::remove_cv_t<T>, char>) {
std::strcpy(value, str);
}
}
void extract (const char* str, void* value) {
(void)*str; (void)value;
}
template <char Marker = '%'>
std::pair<size_t, bool> parse (const char* expected, const string_view buffer, char* token) {
do {
if (*expected == Marker) {
// We have Marker. Copy to token the next part of buffer, from begin up to expected[1] where
// the expected[1] character is and return the size of that part.
auto next = std::find(buffer.begin(), buffer.end(), expected[1]);
if (next == buffer.end())
break;
char* nullpos = std::copy(buffer.begin(), next, token);
*nullpos =0;
return std::make_pair(next - buffer.begin(), true);
}
else if (*expected == buffer.front()) {
// We have character match, copy the character to token and return 1 (the char size)
*token++ = buffer.front();
*token =0;
return std::make_pair(1, false);
}
} while (0);
// Fail to parse
*token =0;
return std::make_pair(0, false);
}
//! @}
//! \name public functionality
//! @{
public:
/*!
* \brief
* Transmit data to modem
* \param data Pointer to data to send
* \param n The size of data buffer
* \return The number of transmitted chars
*/
size_t transmit (const char* data, size_t n) {
return put (data, n);
}
size_t transmit (const char* data) {
return put (data, strlen(data));
}
/*!
* \brief
* Try to receive data from modem. If there are data copy them to \c data pointer and retur
* the size. Otherwise return zero. In the case \c wait is true block until there are data to get.
*
* \param data Pointer to data buffer to write
* \param wait Flag to select blocking / non-blocking functionality
* \return The number of copied data.
*/
size_t receive (char* data, bool wait =false) {
do {
if (streams_.load(std::memory_order_acquire)) {
size_t n =0;
do {
*data << rx_q;
++n;
} while (*data++ != delimiter);
*data =0;
streams_.fetch_sub(1, std::memory_order_acq_rel);
return n;
}
} while (wait); // on wait flag we block until available stream
return 0;
}
/*!
* \brief
* Send a command to modem and check if the response matches to
* \c expected. If so read any token inside response marked with
* \c Marker, convert the value into type \c T and write it to \c t
*
* \param cmd The comand to send (null terminated)
* \param expected The expected response
* \param t The value to return
* \param timeout The timeout in CPU time (leave it for 0 - no timeout)
*
* \tparam T The type of the value to read from response marked with \c Marker
* \tparam Marker The marker character
* \return True on success
*
* example
* \code
* BG95<256> modem;
* std::thread th1 ([&](){
* modem.inetd(false);
* });
* int status;
* bool done = modem.command("AT+CREG?\r\n", "\r\n+CREG: 0,%\r\n\r\nOK\r\n", status);
* if (done && status == 1)
* std::cout << "Connected to home network\n"
* \endcode
* element_type (&arr)[N]
*/
template<char Marker = '%', typename ...Ts>
bool command (const string_view cmd, const string_view expected, clock_t timeout, Ts* ...values) {
constexpr size_t Nr = sizeof...(Ts);
front<typelist<Ts...>>* vargs[Nr] = {values...};
if constexpr (Nr == 0) { (void)vargs; }
char buffer[N], token[N];
size_t v =0;
transmit(cmd.data()); // send command
for (auto ex = expected.begin() ; ex != expected.end() ; ) {
clock_t mark = clock(); // load the answer with timeout
size_t sz =0;
bool redo = false; do {
do {
sz = receive(buffer);
if ((timeout != 0 )&& ((clock() - mark) >= timeout))
return false;
} while (!sz);
redo = false; // have faith to parse successfully
for (size_t i=0 ; i<sz ; ) { // parse buffer based on expected
auto [step, marker] = parse<Marker> (ex++, {&buffer[i], sz-i}, token);
if (!step) {
redo = true; // fail to parse, reload and retry
break;
}
if constexpr (Nr > 0) {
if (marker && v< Nr)
extract(token, vargs[v++]);
}
i += step;
}
} while (redo);
}
return true;
}
/*!
* \brief
* inetd daemon functionality provided as member function of the driver. This should be running
* in the background either as consecutive calls from an periodic ISR with \c loop = false, or
* as a thread in an RTOS environment with \c loop = true.
*
* \tparam Nm The number of handler array entries
*
* \param async_handles Reference to asynchronous handler array
* \param loop Flag to indicate blocking mode. If true blocking.
*/
template <size_t Nm =0>
void inetd (bool loop =true, const inetd_handlers<Nm>* inetd_handlers =nullptr) {
std::array<char, N> buffer;
size_t resp_size;
do {
if ((resp_size = get_(buffer.data())) != 0) {
// on data check for async handlers
bool match = false;
if (inetd_handlers != nullptr) {
for (auto& h : *inetd_handlers)
match |= base_type::check_handle({buffer.data(), resp_size}, h.token, h.match, h.handler);
}
// if no match forward data to receive channel.
if (!match) {
char* it = buffer.data();
do {
rx_q << *it;
} while (*it++ != delimiter);
streams_.fetch_add(1, std::memory_order_acq_rel);
}
}
} while (loop);
}
//! @}
private:
equeue<char, N, true> rx_q{};
std::atomic<size_t> streams_{};
};
} // namespace tbx;
#endif /* #ifndef TBX_DRV_ATmodem_H_ */

+ 493
- 0
include/drv/cli_device.h View File

@@ -0,0 +1,493 @@
/*!
* \file drv/cli_device.h
* \brief
* command line device driver functionality as CRTP base class
*
* \copyright Copyright (C) 2021 Christos Choutouridis <christos@choutouridis.net>
*
* <dl class=\"section copyright\"><dt>License</dt><dd>
* The MIT License (MIT)
*
* 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.
* </dd></dl>
*/
#ifndef TBX_DRV_CLI_DEVICE_H_
#define TBX_DRV_CLI_DEVICE_H_
#define __cplusplus 201703L
#include <core/core.h>
#include <core/crtp.h>
#include <cont/equeue.h>
#include <cont/range.h>
#include <com/sequencer.h>
#include <cstring>
#include <cstdlib>
#include <algorithm>
#include <utility>
#include <atomic>
namespace tbx {
/*!
* \class cli_device
* \brief
* Its a base class for command-line based devices
*
* Inherits the sequencer functionality and provides a command interface for sending
* commands and parse the response.
*
* \example implementation example
* \code
* class BG95 : public cli_device<BG95, 256> {
* using base_type = cli_device<BG95, 256>;
* using Queue = equeue<typename base_type::value_type, 256, true>;
* Queue RxQ{};
* std::atomic<size_t> lines{};
* public:
* // cli_device driver requirements
* BG95() noexcept :
* RxQ(Queue::data_match::MATCH_PUSH, base_type::delimiter, [&](){
* lines.fetch_add(1, std::memory_order_acq_rel);
* }), lines(0) { }
* void feed(char x) { RxQ << x; } // To be used inside ISR
* size_t get(char* data, bool wait =false) {
* do {
* if (lines.load(std::memory_order_acquire)) {
* size_t n =0;
* do{
* *data << RxQ;
* ++n;
* } while (*data++ != base_type::delimiter);
* lines.fetch_sub(1, std::memory_order_acq_rel);
* return n;
* }
* } while (wait);
* return 0;
* }
* size_t contents(char* data) {
* char* nullpos = std::copy(RxQ.begin(), RxQ.end(), data);
* *nullpos =0;
* return nullpos - data;
* }
* size_t put (const char* data, size_t n) {
* // send data to BG95
* return n;
* }
* clock_t clock() noexcept { //return CPU time }
* };
* \endcode
*
* \tparam Impl_t The type of derived class
* \tparam N The size of the queue buffer for the receive/command interface
* \tparam Delimiter The incoming data delimiter [default line buffered -- Delimiter = '\n']
*/
template<typename Impl_t, size_t N, char Delimiter ='\n'>
class cli_device
: public sequencer<cli_device<Impl_t, N, Delimiter>, char, N>{
_CRTP_IMPL(Impl_t);
// local type dispatch
using base_type = sequencer<cli_device, char, N>;
//! \name Public types
//! @{
public:
using value_type = char;
using pointer_type = char*;
using size_type = size_t;
using string_view = typename base_type::string_view;
using action_t = typename base_type::action_t;
using control_t = typename base_type::control_t;
using match_ft = typename base_type::match_ft;
using handler_ft = typename base_type::handler_ft;
template<size_t Nm>
using script_t = typename base_type::template script_t<Nm>;
//! Publish delimiter
constexpr static char delimiter = Delimiter;
enum flush_type { keep =0, flush };
//! Required types for inetd async handler operation
//! @{
/*!
* inetd handler structure for asynchronous incoming data dispatching
*/
struct inetd_handler_t {
string_view token; //!< The token we match against
match_ft match; //!< The predicate we use to match
handler_ft handler; //!< The handler to call on match
};
//! Alias template for the async handler array
template <size_t Nm>
using inetd_handlers = std::array<inetd_handler_t, Nm>;
//! @}
//! @}
//! \name object lifetime
//!@{
protected:
//!< \brief A default constructor from derived only
cli_device() noexcept = default;
~cli_device () = default; //!< \brief Allow destructor from derived only
cli_device(const cli_device&) = delete; //!< No copies
cli_device& operator= (const cli_device&) = delete; //!< No copy assignments
//!@}
//! \name Sequencer interface requirements
//! Forwarded to implementer the calls and cascade the the incoming channel
//! @{
friend base_type;
private:
size_t get_ (char* data) {
return impl().get (data);
}
size_t get (char* data) {
return receive (data);
}
size_t contents (char* data) {
return impl().contents(data);
}
size_t put (const char* data, size_t n) {
return impl().put (data, n);
}
clock_t clock () noexcept {
return impl().clock();
}
//! @}
//! \name Private functionality
//! @{
private:
//! typelist "container". A container of template parameter type arguments
template <typename... Ts>
struct typelist {
using type = typelist; //!< act as identity
};
//! front functionality: get the first type of the typelist "container"
template <typename L>
struct front_impl {
using type = void;
};
template <typename Head, typename... Tail>
struct front_impl<typelist<Head, Tail...>> {
using type = Head;
};
//! Return the first element in \c typelist \c List.
//!
//! Complexity \f$ O(1) \f$.
template <typename List>
using front = typename front_impl<List>::type;
/*!
* Convert the text pointed by \c str to a value and store it to
* \c value. The type of conversion is deduced by the compiler
* \tparam T The type of the value
* \param str pointer to string with the value
* \param value pointer to converted value
*/
template<typename T>
void extract_ (const char* str, T* value) {
static_assert (
std::is_same_v<std::remove_cv_t<T>, int>
|| std::is_same_v<std::remove_cv_t<T>, double>
|| std::is_same_v<std::remove_cv_t<T>, char>,
"Not supported conversion type.");
if constexpr (std::is_same_v<std::remove_cv_t<T>, int>) {
*value = std::atoi(str);
} else if (std::is_same_v<std::remove_cv_t<T>, double>) {
*value = std::atof(str);
} else if (std::is_same_v<std::remove_cv_t<T>, char>) {
std::strcpy(value, str);
}
}
//! Specialization (as overload function) to handle void* types
void extract_ (const char* str, void* value) noexcept {
(void)*str; (void)value;
}
/*!
* Parse a chunk of the buffer based on \c expected character
*
* Tries to match the \c *expected character in buffer and if so it copies the
* character to token.
* If the \c *expected is the \c Marker character, copy the entire chunk of the buffer
* up to the character that matches the next expected character (expected[1]).
* If there is no next expected character or if its not found in the buffer,
* copy the entire buffer.
*
* \tparam Marker The special character to indicate chunk extraction
*
* \param expected The character to parse/remove from the buffer
* \param buffer The buffer we parse
* \param token Pointer to store the parsed tokens
* \return A (number of characters parsed, marker found) pair
*/
template <char Marker = '%'>
std::pair<size_t, bool> parse_ (const char* expected, const string_view buffer, char* token) {
do {
if (*expected == Marker) {
// We have Marker. Copy the entire chunk of the buffer
// up to the character that matches the next expected character (expected[1]).
// If there is none next expected character or if its not found in the buffer,
// copy the entire buffer.
auto next = std::find(buffer.begin(), buffer.end(), expected[1]);
char* nullpos = std::copy(buffer.begin(), next, token);
*nullpos =0;
return std::make_pair(next - buffer.begin(), true);
}
else if (*expected == buffer.front()) {
// We have character match, copy the character to token and return 1 (the char size)
*token++ = buffer.front();
*token =0;
return std::make_pair(1, false);
}
} while (0);
// Fail to parse
*token =0;
return std::make_pair(0, false);
}
/*!
* Analyze the response of a command based on \c expected.
*
* Tries to receive data with timeout and match them against expected string_view.
* For each Marker inside the expected string the value gets extracted, converted and
* copied to \c vargs pointer array.
*
* \param expected The expected string view
* \param timeout the timeout in CPU time
* \param vargs Pointer to variable arguments array
* \param nargs Size of variable arguments array
* \return
*/
template<char Marker = '%', typename T>
bool response_ (const string_view expected, clock_t timeout, T* vargs, size_t nargs) {
char buffer[N], token[N], *pbuffer = buffer;
size_t v =0, sz =0;
for (auto ex = expected.begin() ; ex != expected.end() ; ) {
clock_t mark = clock(); // mark the time
while (sz <= 0) { // if buffer is empty get buffer with timeout
sz = receive(buffer);
pbuffer = buffer;
if ((timeout != 0 )&& ((clock() - mark) >= timeout))
return false;
}
// try to parse
auto [step, marker] = parse_<Marker> (ex, {pbuffer, sz}, token);
if (!step)
return false; // discard buffer and fail
if (marker && v < nargs)
extract_(token, vargs[v++]);
pbuffer += step;
sz -= (step <= sz) ? step: sz;
++ex;
}
return true;
}
//! @}
//! \name public functionality
//! @{
public:
/*!
* \brief
* Transmit data to modem
* \param data Pointer to data to send
* \param n The size of data buffer
* \return The number of transmitted chars
*/
size_t transmit (const char* data, size_t n) {
if (data == nullptr)
return 0;
return put (data, n);
}
/*!
* \brief
* Transmit data to modem
* \param data Pointer to data to send
* \return The number of transmitted chars
*/
size_t transmit (const char* data) {
if (data == nullptr)
return 0;
return put (data, std::strlen(data));
}
/*!
* \brief
* Try to receive data from modem. If there are data copy them to \c data pointer and return
* the size. Otherwise return zero. In the case \c wait is true block until there are data to get.
*
* \param data Pointer to data buffer to write
* \param wait Flag to select blocking / non-blocking functionality
* \return The number of copied data.
*/
size_t receive (char* data, bool wait =false) {
do {
if (streams_.load(std::memory_order_acquire)) {
size_t n =0;
do {
*data << rx_q;
++n;
} while (*data++ != delimiter);
*data =0;
streams_.fetch_sub(1, std::memory_order_acq_rel);
return n;
}
} while (wait); // on wait flag we block until available stream
return 0;
}
//! Clears the incoming data buffer
void clear () noexcept {
rx_q.clear();
}
//! \return Returns the size of the incoming data buffer
size_t size() noexcept {
return rx_q.size();
}
/*!
* \brief
* Send a command to modem and check if the response matches to \c expected.
*
* This function executes 3 steps.
* - Clears the incoming buffer if requested by template parameter
* - Sends the command to device
* - Waits to get the response and parse it accordingly to \c expected \see response_()
*
* The user can mark spots inside the expected string using the \c Marker ['%'] character.
* These spots will be extracted to tokens upon parsing. If the user passes \c values parameters,
* then the extracted tokens will be converted to the type of the \c values (\c Ts) and copied to them
* one by one. If the values are less than spots, the rest of the tokens get discarded.
*
* \param cmd The command to send (null terminated)
* \param expected The expected response
* \param timeout The timeout in CPU time (leave it for 0 - no timeout)
* \param values The value pointer arguments to get the converted tokens
*
* \tparam Flush Flag to indicate if we flush the buffer before command or not
* \tparam Marker The marker character
* \tparam Ts The type of the values to read from response marked with \c Marker
* \warning The types MUST be the same
*
* \return True on success
*
* \example examples
* \code
* Derived cli;
* int status;
* char str[32];
*
* // discard 3 lines and expect OK\r\n at the end with 1000[CPU time] timeout
* cli.command("AT+CREG?\r\n", "%%%OK\r\n", 1000);
*
* // extract a number from response without timeout (blocking)
* cli.command<flush>("AT+CREG?\r\n", "\r\n+CREG: 0,%\r\n\r\nOK\r\n", 0, &status);
*
* // extract a number and discard the last 2 lines
* cli.command<flush>("AT+CREG?\r\n", "\r\n+CREG: 0,%\r\n%%", 1000, &status);
*
* // discard first line, read the 2nd to str, discard the 3rd line.
* // expect the last to be "OK\r\n"
* cli.command<flush>("AT+CREG?\r\n", "", 100000);
* cli.command<keep>("", "%", 1000);
* cli.command<keep>("", "%%", 1000, str);
* cli.command<keep>("", "OK\r\n", 1000);
* \endcode
*/
template<flush_type Flush =flush, char Marker = '%', typename ...Ts>
bool command (const string_view cmd, const string_view expected, clock_t timeout, Ts* ...values) {
constexpr size_t Nr = sizeof...(Ts);
front<typelist<Ts...>>* vargs[Nr] = {values...}; // read all args to local buffer
if constexpr (Flush == flush) {
clear ();
}
if (transmit(cmd.data(), cmd.size()) != cmd.size()) // send command
return false;
// parse the response and return the status
return response_<Marker>(expected, timeout, vargs, Nr);
}
/*!
* \brief
* inetd daemon functionality provided as member function of the driver. This should be running
* in the background either as consecutive calls from an periodic ISR with \c loop = false, or
* as a thread in an RTOS environment with \c loop = true.
*
* \tparam Nm The number of handler array entries
*
* \param async_handles Reference to asynchronous handler array
* \param loop Flag to indicate blocking mode. If true blocking.
*/
template <size_t Nm =0>
void inetd (bool loop =true, const inetd_handlers<Nm>* inetd_handlers =nullptr) {
std::array<char, N> buffer;
size_t resp_size;
do {
if ((resp_size = get_(buffer.data())) != 0) {
// on data check for async handlers
bool match = false;
if (inetd_handlers != nullptr) {
for (auto& h : *inetd_handlers)
match |= base_type::check_handle({buffer.data(), resp_size}, h.token, h.match, h.handler);
}
// if no match forward data to receive channel.
if (!match) {
char* it = buffer.data();
do {
rx_q << *it;
} while (*it++ != delimiter);
streams_.fetch_add(1, std::memory_order_acq_rel);
}
}
} while (loop);
}
//! @}
private:
equeue<char, N, true> rx_q{};
std::atomic<size_t> streams_{};
};
} // namespace tbx;
#endif /* #ifndef TBX_DRV_CLI_DEVICE_H_ */

+ 5
- 3
test/Makefile View File

@@ -107,7 +107,7 @@ OCOPY := objcopy
# Compiler flags for debug and release # Compiler flags for debug and release
DEB_CFLAGS := -std=gnu++17 -DDEBUG -g3 -Wall -Wextra -fmessage-length=0 DEB_CFLAGS := -std=gnu++17 -DDEBUG -g3 -Wall -Wextra -fmessage-length=0
REL_CFLAGS := -std=gnu++17 -g3 -Wall -Wextra -O2 -fmessage-length=0
REL_CFLAGS := -std=gnu++17 -Wall -Wextra -O2 -fmessage-length=0
# Pre-defines # Pre-defines
PRE_DEFS := PRE_DEFS :=
ifeq ($(OS), Windows_NT) ifeq ($(OS), Windows_NT)
@@ -223,13 +223,15 @@ debug: $(BUILD_DIR)/$(TARGET)
.PHONY: test_asan .PHONY: test_asan
test_asan: CFLAGS += -fsanitize=address -fsanitize=leak -fsanitize=bounds-strict
test_asan: CFLAGS := $(REL_CFLAGS)
test_asan: CFLAGS += -g3 -fsanitize=address -fsanitize=leak -fsanitize=bounds-strict
test_asan: LDFLAGS += -fsanitize=address -fsanitize=leak -fsanitize=bounds-strict test_asan: LDFLAGS += -fsanitize=address -fsanitize=leak -fsanitize=bounds-strict
test_asan: $(BUILD_DIR)/$(TARGET) test_asan: $(BUILD_DIR)/$(TARGET)
.PHONY: test_tsan .PHONY: test_tsan
test_tsan: CFLAGS += -fsanitize=thread
test_asan: CFLAGS := $(REL_CFLAGS)
test_tsan: CFLAGS += -g3 -fsanitize=thread
test_tsan: LDFLAGS += -fsanitize=thread test_tsan: LDFLAGS += -fsanitize=thread
test_tsan: $(BUILD_DIR)/$(TARGET) test_tsan: $(BUILD_DIR)/$(TARGET)


test/tests/ATmodem.cpp → test/tests/cli_device.cpp View File

@@ -1,5 +1,5 @@
/*! /*!
* \file ATmodem.cpp
* \file cli_device.cpp
* *
* \copyright Copyright (C) 2020 Christos Choutouridis <christos@choutouridis.net> * \copyright Copyright (C) 2020 Christos Choutouridis <christos@choutouridis.net>
* *
@@ -26,7 +26,7 @@
* </dd></dl> * </dd></dl>
* *
*/ */
#include <drv/ATmodem.h>
#include <drv/cli_device.h>
#include <gtest/gtest.h> #include <gtest/gtest.h>
#include <cont/equeue.h> #include <cont/equeue.h>
@@ -42,17 +42,17 @@
#include <mingw.mutex.h> #include <mingw.mutex.h>
#endif #endif
namespace test_ATmodem {
namespace test_cli_device {
using namespace tbx; using namespace tbx;
// test settings // test settings
constexpr size_t Size = 128; constexpr size_t Size = 128;
using data_type = char; using data_type = char;
// BG95 implementer mock
// cli_device implementer mock. We simulate a BG95 ATmodem for that purpose
template<size_t N> template<size_t N>
class BG95 : public ATmodem<BG95<N>, N> {
using base_type = ATmodem<BG95<N>, N>;
class BG95 : public cli_device<BG95<N>, N> {
using base_type = cli_device<BG95<N>, N>;
using Queue = equeue<typename base_type::value_type, N, true>; using Queue = equeue<typename base_type::value_type, N, true>;
public: public:
@@ -70,7 +70,8 @@ namespace test_ATmodem {
const char* resp; const char* resp;
}; };
std::array<cmd_pair, 19> cmd_map = {{
std::array<cmd_pair, 20> cmd_map = {{
{"", ""},
{"ERROR", "\r\nERROR\r\n"}, {"ERROR", "\r\nERROR\r\n"},
{"ATE0\r\n", "\r\nATE0\r\nOK\r\n"}, {"ATE0\r\n", "\r\nATE0\r\nOK\r\n"},
{"AT\r\n", "\r\nOK\r\n"}, {"AT\r\n", "\r\nOK\r\n"},
@@ -99,11 +100,13 @@ namespace test_ATmodem {
{event::MQTT_RXDATA, "\r\n+QMTRECV: 0,1,\"/path/topic1\",\"BR: hello to all of my subscribers\""} {event::MQTT_RXDATA, "\r\n+QMTRECV: 0,1,\"/path/topic1\",\"BR: hello to all of my subscribers\""}
}}; }};
const char* cmd_responce (const char* cmd) { const char* cmd_responce (const char* cmd) {
for (auto& it : cmd_map) {
if (!strcmp(it.cmd, cmd))
return it.resp;
if (cmd != nullptr) {
for (auto& it : cmd_map) {
if (!std::strcmp(it.cmd, cmd))
return it.resp;
}
} }
return cmd_map[0].resp;
return cmd_map[1].resp;
} }
const char* event_responce (const event e) { const char* event_responce (const event e) {
for (auto& it : event_map) { for (auto& it : event_map) {
@@ -114,13 +117,14 @@ namespace test_ATmodem {
} }
// data // data
Queue rx_q{};
Queue RxQ{};
std::atomic<size_t> lines{}; std::atomic<size_t> lines{};
clock_t t=0;
public: public:
// ATmodem driver requirements
// cli_device driver requirements
BG95() noexcept : BG95() noexcept :
rx_q(Queue::data_match::MATCH_PUSH, base_type::delimiter, [&](){
RxQ(Queue::data_match::MATCH_PUSH, base_type::delimiter, [&](){
lines.fetch_add(1, std::memory_order_acq_rel); lines.fetch_add(1, std::memory_order_acq_rel);
}), lines(0) { } }), lines(0) { }
@@ -129,7 +133,7 @@ namespace test_ATmodem {
if (lines.load(std::memory_order_acquire)) { if (lines.load(std::memory_order_acquire)) {
size_t n =0; size_t n =0;
do{ do{
*data << rx_q;
*data << RxQ;
++n; ++n;
} while (*data++ != base_type::delimiter); } while (*data++ != base_type::delimiter);
lines.fetch_sub(1, std::memory_order_acq_rel); lines.fetch_sub(1, std::memory_order_acq_rel);
@@ -139,24 +143,25 @@ namespace test_ATmodem {
return 0; return 0;
} }
size_t contents(char* data) { size_t contents(char* data) {
char* nullpos = std::copy(rx_q.begin(), rx_q.end(), data);
char* nullpos = std::copy(RxQ.begin(), RxQ.end(), data);
*nullpos =0; *nullpos =0;
return nullpos - data; return nullpos - data;
} }
size_t put (const char* data, size_t n) { size_t put (const char* data, size_t n) {
const char* reply = cmd_responce (data); const char* reply = cmd_responce (data);
while (*reply) while (*reply)
rx_q << *reply++;
RxQ << *reply++;
return n; return n;
} }
clock_t clock() { static clock_t t=0; return ++t; }
clock_t clock() noexcept { return ++t; }
void clear_clock() noexcept { t=0; }
// extra helper for testing purposes // extra helper for testing purposes
void async (event e) { void async (event e) {
const char* reply =event_responce (e); const char* reply =event_responce (e);
while (*reply) while (*reply)
rx_q << *reply++;
RxQ << *reply++;
} }
}; };
@@ -171,7 +176,7 @@ namespace test_ATmodem {
handler_flag = false; handler_flag = false;
} }
TEST(TATmodem, traits) {
TEST(Tcli_device, traits) {
EXPECT_EQ ( std::is_default_constructible<BG95<Size>>::value, true); EXPECT_EQ ( std::is_default_constructible<BG95<Size>>::value, true);
EXPECT_EQ ( std::is_nothrow_default_constructible<BG95<Size>>::value, true); EXPECT_EQ ( std::is_nothrow_default_constructible<BG95<Size>>::value, true);
EXPECT_EQ (!std::is_copy_constructible<BG95<Size>>::value, true); EXPECT_EQ (!std::is_copy_constructible<BG95<Size>>::value, true);
@@ -182,22 +187,28 @@ namespace test_ATmodem {
EXPECT_EQ ((std::is_same_v<BG95<Size>::size_type, size_t>), true); EXPECT_EQ ((std::is_same_v<BG95<Size>::size_type, size_t>), true);
EXPECT_EQ ((std::is_same_v<BG95<Size>::string_view, std::basic_string_view<data_type>>), true); EXPECT_EQ ((std::is_same_v<BG95<Size>::string_view, std::basic_string_view<data_type>>), true);
BG95<Size> m;
EXPECT_EQ (m.size(), Size);
} }
/* /*
* Test inetd in non blocking mode * Test inetd in non blocking mode
*/ */
TEST(TATmodem, inetd_non_blocking) {
TEST(Tcli_device, txrx_inetd) {
BG95<Size> modem; BG95<Size> modem;
char buffer[Size]; char buffer[Size];
size_t s =0;
const BG95<Size>::inetd_handlers<2> async = {{ const BG95<Size>::inetd_handlers<2> async = {{
{"+QMTSTAT:", BG95<Size>::starts_with, handler}, {"+QMTSTAT:", BG95<Size>::starts_with, handler},
{"+QMTRECV", BG95<Size>::contains, handler}, {"+QMTRECV", BG95<Size>::contains, handler},
}}; }};
s = modem.transmit("", std::strlen(""));
EXPECT_EQ (s, 0UL);
s = modem.transmit("");
EXPECT_EQ (s, 0UL);
s = modem.transmit(nullptr);
EXPECT_EQ (s, 0UL);
clear_flag(); clear_flag();
modem.inetd(false, &async); modem.inetd(false, &async);
EXPECT_EQ (handler_flag, false); EXPECT_EQ (handler_flag, false);
@@ -212,7 +223,7 @@ namespace test_ATmodem {
modem.inetd(false, &async); modem.inetd(false, &async);
EXPECT_EQ (handler_flag, false); EXPECT_EQ (handler_flag, false);
EXPECT_NE (modem.receive(buffer), 0UL); // "\r\n" in buffer EXPECT_NE (modem.receive(buffer), 0UL); // "\r\n" in buffer
EXPECT_EQ (strcmp(buffer, "\r\n"), 0);
EXPECT_EQ (std::strcmp(buffer, "\r\n"), 0);
clear_flag(); clear_flag();
modem.inetd(false, &async); modem.inetd(false, &async);
@@ -221,31 +232,31 @@ namespace test_ATmodem {
EXPECT_EQ (modem.receive(buffer), 0UL); EXPECT_EQ (modem.receive(buffer), 0UL);
modem.inetd(false, &async); // parse "\r\n" modem.inetd(false, &async); // parse "\r\n"
EXPECT_NE (modem.receive(buffer), 0UL); EXPECT_NE (modem.receive(buffer), 0UL);
EXPECT_EQ (strcmp(buffer, "\r\n"), 0);
EXPECT_EQ (std::strcmp(buffer, "\r\n"), 0);
modem.inetd(false, &async); // parse "+CSQ: 19,99\r\n" modem.inetd(false, &async); // parse "+CSQ: 19,99\r\n"
EXPECT_NE (modem.receive(buffer), 0UL); EXPECT_NE (modem.receive(buffer), 0UL);
EXPECT_EQ (strcmp(buffer, "+CSQ: 19,99\r\n"), 0);
EXPECT_EQ (std::strcmp(buffer, "+CSQ: 19,99\r\n"), 0);
modem.inetd(false, &async); // parse "\r\n" modem.inetd(false, &async); // parse "\r\n"
EXPECT_NE (modem.receive(buffer), 0UL); EXPECT_NE (modem.receive(buffer), 0UL);
EXPECT_EQ (strcmp(buffer, "\r\n"), 0);
EXPECT_EQ (std::strcmp(buffer, "\r\n"), 0);
modem.inetd(false, &async); // parse "OK\r\n" modem.inetd(false, &async); // parse "OK\r\n"
EXPECT_NE (modem.receive(buffer), 0UL); EXPECT_NE (modem.receive(buffer), 0UL);
EXPECT_EQ (strcmp(buffer, "OK\r\n"), 0);
EXPECT_EQ (std::strcmp(buffer, "OK\r\n"), 0);
modem.inetd(false, &async); // nothing to parse modem.inetd(false, &async); // nothing to parse
modem.inetd(false, &async); modem.inetd(false, &async);
modem.inetd(false, &async); modem.inetd(false, &async);
EXPECT_EQ (modem.receive(buffer), 0UL); EXPECT_EQ (modem.receive(buffer), 0UL);
} }
TEST(TATmodem, run) {
TEST(Tcli_device, run) {
BG95<Size> modem; BG95<Size> modem;
using Control = BG95<Size>::control_t; using Control = BG95<Size>::control_t;
const BG95<Size>::script_t<4> script = {{ const BG95<Size>::script_t<4> script = {{
{Control::NOP, "", BG95<Size>::nil, BG95<Size>::nil, BG95<Size>::go_to<1>, 1000},
{Control::NOP, "", BG95<Size>::nil, BG95<Size>::nil, BG95<Size>::go_to<1>, 100000},
{Control::SEND, "ATE0\r\n", BG95<Size>::nil, BG95<Size>::nil, BG95<Size>::next, 0}, {Control::SEND, "ATE0\r\n", BG95<Size>::nil, BG95<Size>::nil, BG95<Size>::next, 0},
{Control::EXPECT, "OK\r\n", BG95<Size>::ends_with, BG95<Size>::nil, BG95<Size>::exit_ok, 1000},
{Control::EXPECT, "OK\r\n", BG95<Size>::ends_with, BG95<Size>::nil, BG95<Size>::exit_ok, 100000},
{Control::OR_EXPECT,"ERROR", BG95<Size>::contains, BG95<Size>::nil, BG95<Size>::exit_error, 0} {Control::OR_EXPECT,"ERROR", BG95<Size>::contains, BG95<Size>::nil, BG95<Size>::exit_error, 0}
}}; }};
@@ -262,12 +273,26 @@ namespace test_ATmodem {
th1.join(); th1.join();
} }
TEST(TATmodem, transmit) {
TEST(Tcli_device, clear_size) {
BG95<Size> modem;
char buffer[Size];
modem.clear();
EXPECT_EQ (modem.size(), 0UL);
EXPECT_EQ (modem.receive(buffer), 0UL);
modem.transmit("abcd", 4);
modem.inetd(false);
modem.inetd(false);
EXPECT_NE (modem.size(), 0UL);
modem.clear();
EXPECT_EQ (modem.size(), 0UL);
} }
TEST(TATmodem, command) {
TEST(Tcli_device, command_non_extraction) {
BG95<Size> modem; BG95<Size> modem;
char buffer[Size];
std::mutex m; std::mutex m;
m.lock(); m.lock();
@@ -278,24 +303,117 @@ namespace test_ATmodem {
m.unlock(); m.unlock();
}); });
EXPECT_EQ (modem.command("AT\r\n", "Something else", 1000), false);
EXPECT_EQ (modem.command("AT\r\n", "\r\nOK\r\n", 1000), true);
auto run_receive = [&](size_t times) -> size_t {
size_t s =0;
for (size_t i=0 ; i<times ; ++i)
s += modem.receive(buffer);
return s;
};
EXPECT_EQ (modem.command("", "", 0), true); // returns: ""
EXPECT_EQ (modem.size(), 0UL);
EXPECT_EQ (run_receive(100000), 0UL);
EXPECT_EQ (modem.command("", "abcd", 100000), false);// returns: ""
EXPECT_EQ (modem.size(), 0UL);
EXPECT_EQ (run_receive(100000), 0UL);
EXPECT_EQ (modem.command("abcd", "", 0), true); // returns: "\r\nERROR\r\n"
EXPECT_GT (run_receive(100000), 0UL);
EXPECT_EQ (modem.command("AT\r\n", "Something else", 100000), false);// returns: "\r\nOK\r\n"
EXPECT_GT (run_receive(100000), 0UL);
EXPECT_EQ (modem.command("AT\r\n", "\r\nOK\r\n", 100000), true); // returns: "\r\nOK\r\n"
EXPECT_EQ (modem.size(), 0UL);
EXPECT_EQ (run_receive(100000), 0UL);
EXPECT_EQ (modem.command("AT\r\n", "%OK\r\n", 100000), true); // returns: "\r\nOK\r\n"
EXPECT_EQ (modem.size(), 0UL);
EXPECT_EQ (run_receive(100000), 0UL);
// returns: "\r\n+CREG: 0,5\r\n\r\nOK\r\n
EXPECT_EQ (modem.command<BG95<Size>::flush>("AT+CREG?\r\n", "%OK\r\n", 0), false);
EXPECT_GT (run_receive(100000), 0UL);
// returns: "\r\n+CREG: 0,5\r\n\r\nOK\r\n
EXPECT_EQ (modem.command<BG95<Size>::flush>("AT+CREG?\r\n", "%%%OK\r\n", 0), true);
EXPECT_EQ (modem.size(), 0UL);
EXPECT_EQ (run_receive(100000), 0UL);
// returns: "\r\n+CREG: 0,5\r\n\r\nOK\r\n
EXPECT_EQ (modem.command<BG95<Size>::flush>("AT+CREG?\r\n", "%", 0), true);
EXPECT_GT (run_receive(100000), 0UL);
EXPECT_EQ (modem.command<BG95<Size>::flush>("AT\r\n", "%%", 0), true); // returns: "\r\nOK\r\n"
EXPECT_EQ (modem.size(), 0UL);
EXPECT_EQ (run_receive(100000), 0UL);
EXPECT_EQ (modem.command<BG95<Size>::flush>("AT\r\n", "%%%", 10000), false); // returns: "\r\nOK\r\n"
EXPECT_EQ (modem.size(), 0UL);
EXPECT_EQ (run_receive(100000), 0UL);
// returns: "\r\n+CREG: 0,5\r\n\r\nOK\r\n
EXPECT_EQ (modem.command<modem.flush>("AT+CREG?\r\n", "", 0), true);
EXPECT_EQ (modem.command<modem.keep>("", "%", 0), true);
EXPECT_EQ (modem.command<modem.keep>("", "%%", 0), true);
EXPECT_EQ (modem.command<modem.keep>("", "%", 0), true);
EXPECT_EQ (modem.command<modem.keep>("", "%", 10000), false);
EXPECT_EQ (modem.size(), 0UL);
EXPECT_EQ (run_receive(100000), 0UL);
m.unlock(); // stop and join inetd
th1.join();
}
TEST(Tcli_device, command_extraction) {
BG95<Size> modem;
char buffer[Size];
std::mutex m;
m.lock();
std::thread th1 ([&](){
do
modem.inetd(false);
while (!m.try_lock());
m.unlock();
});
EXPECT_EQ (modem.command("AT\r\n", "%OK\r\n", 1000), true);
EXPECT_EQ (modem.command("AT+CREG?\r\n", "%OK\r\n", 1000), false);
EXPECT_EQ (modem.command("AT+CREG?\r\n", "%%%OK\r\n", 1000), true);
auto run_receive = [&](size_t times) -> size_t {
size_t s =0;
for (size_t i=0 ; i<times ; ++i)
s += modem.receive(buffer);
return s;
};
int status1, status2; int status1, status2;
EXPECT_EQ (modem.command("AT+CREG?\r\n", "\r\n+CREG: 0,%\r\n\r\nOK\r\n", 1000, &status1), true);
EXPECT_EQ (modem.command("AT+CREG?\r\n", "\r\n+CREG: 0,%\r\n\r\nOK\r\n", 100000, &status1), true);
EXPECT_EQ (status1, 5); EXPECT_EQ (status1, 5);
EXPECT_EQ (modem.command("AT+CREG?\r\n", "\r\n+CREG: %,%\r\n\r\nOK\r\n", 1000, &status1, &status2), true);
EXPECT_EQ (modem.command("AT+CREG?\r\n", "\r\n+CREG: %,%\r\n\r\nOK\r\n", 100000, &status1, &status2), true);
EXPECT_EQ (status1, 0); EXPECT_EQ (status1, 0);
EXPECT_EQ (status2, 5); EXPECT_EQ (status2, 5);
char substr1[32], substr2[32]; char substr1[32], substr2[32];
EXPECT_EQ (modem.command("AT+CREG?\r\n", "\r\n%\r\n\r\n%\r\n", 1000, substr1, substr2), true);
EXPECT_EQ (strcmp("+CREG: 0,5", substr1), 0);
EXPECT_EQ (strcmp("OK", substr2), 0);
EXPECT_EQ (modem.command("AT+CREG?\r\n", "\r\n%\r\n\r\n%\r\n", 100000, substr1, substr2), true);
EXPECT_EQ (std::strcmp("+CREG: 0,5", substr1), 0);
EXPECT_EQ (std::strcmp("OK", substr2), 0);
// returns: "\r\n+CREG: 0,5\r\n\r\nOK\r\n
EXPECT_EQ (modem.command<modem.flush>("AT+CREG?\r\n", "", 100000), true);
EXPECT_EQ (modem.command<modem.keep>("", "%", 100000, substr1), true);
EXPECT_EQ (std::strcmp("\r\n", substr1), 0);
EXPECT_EQ (modem.command<modem.keep>("", "%%", 100000, substr1, substr2), true);
EXPECT_EQ (std::strcmp("+CREG: 0,5\r\n", substr1), 0);
EXPECT_EQ (std::strcmp("\r\n", substr2), 0);
EXPECT_EQ (modem.command<modem.keep>("", "%", 100000, substr1), true);
EXPECT_EQ (std::strcmp("OK\r\n", substr1), 0);
EXPECT_EQ (modem.command<modem.keep>("", "%", 10000), false);
EXPECT_EQ (modem.size(), 0UL);
EXPECT_EQ (run_receive(100000), 0UL);
m.unlock(); // stop and join inetd m.unlock(); // stop and join inetd
th1.join(); th1.join();

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