Merge pull request 'service interface stream enhancements' (#93) from KSat/fsfw:mueller_ServiceStreamEnhancement into master

This commit is contained in:
Steffen Gaisser 2020-07-21 12:18:20 +02:00
commit e1c17409d9
4 changed files with 211 additions and 77 deletions

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@ -1,11 +1,58 @@
#include <framework/timemanager/Clock.h>
#include <framework/serviceinterface/ServiceInterfaceBuffer.h>
#include <cstring>
#include <inttypes.h>
// to be implemented by bsp
extern "C" void printChar(const char*);
extern "C" void printChar(const char*, bool errStream);
#ifndef UT699
ServiceInterfaceBuffer::ServiceInterfaceBuffer(std::string setMessage,
bool addCrToPreamble, bool buffered , bool errStream, uint16_t port):
isActive(true), logMessage(setMessage),
addCrToPreamble(addCrToPreamble), buffered(buffered),
errStream(errStream) {
if(buffered) {
// Set pointers if the stream is buffered.
setp( buf, buf + BUF_SIZE );
}
preamble.reserve(MAX_PREAMBLE_SIZE);
preamble.resize(MAX_PREAMBLE_SIZE);
}
void ServiceInterfaceBuffer::putChars(char const* begin, char const* end) {
char array[BUF_SIZE];
uint32_t length = end - begin;
if (length > sizeof(array)) {
length = sizeof(array);
}
memcpy(array, begin, length);
for(; begin != end; begin++){
if(errStream) {
printChar(begin, true);
}
else {
printChar(begin, false);
}
}
}
#endif
int ServiceInterfaceBuffer::overflow(int c) {
if(not buffered and this->isActive) {
if (c != Traits::eof()) {
if(errStream) {
printChar(reinterpret_cast<const char*>(&c), true);
}
else {
printChar(reinterpret_cast<const char*>(&c), false);
}
}
return 0;
}
// Handle output
putChars(pbase(), pptr());
if (c != Traits::eof()) {
@ -20,52 +67,70 @@ int ServiceInterfaceBuffer::overflow(int c) {
}
int ServiceInterfaceBuffer::sync(void) {
if (this->isActive) {
Clock::TimeOfDay_t loggerTime;
Clock::getDateAndTime(&loggerTime);
char preamble[96] = { 0 };
sprintf(preamble, "%s: | %lu:%02lu:%02lu.%03lu | ",
this->log_message.c_str(), (unsigned long) loggerTime.hour,
(unsigned long) loggerTime.minute,
(unsigned long) loggerTime.second,
(unsigned long) loggerTime.usecond /1000);
// Write log_message and time
this->putChars(preamble, preamble + sizeof(preamble));
// Handle output
this->putChars(pbase(), pptr());
if(not this->isActive and not buffered) {
if(not buffered) {
setp(buf, buf + BUF_SIZE - 1);
}
return 0;
}
if(not buffered) {
return 0;
}
size_t preambleSize = 0;
auto preamble = getPreamble(&preambleSize);
// Write logMessage and time
this->putChars(preamble.data(), preamble.data() + preambleSize);
// Handle output
this->putChars(pbase(), pptr());
// This tells that buffer is empty again
setp(buf, buf + BUF_SIZE - 1);
return 0;
}
#ifndef UT699
ServiceInterfaceBuffer::ServiceInterfaceBuffer(std::string set_message, uint16_t port) {
this->log_message = set_message;
this->isActive = true;
setp( buf, buf + BUF_SIZE );
bool ServiceInterfaceBuffer::isBuffered() const {
return buffered;
}
void ServiceInterfaceBuffer::putChars(char const* begin, char const* end) {
char array[BUF_SIZE];
uint32_t length = end - begin;
if (length > sizeof(array)) {
length = sizeof(array);
std::string ServiceInterfaceBuffer::getPreamble(size_t * preambleSize) {
Clock::TimeOfDay_t loggerTime;
Clock::getDateAndTime(&loggerTime);
size_t currentSize = 0;
char* parsePosition = &preamble[0];
if(addCrToPreamble) {
preamble[0] = '\r';
currentSize += 1;
parsePosition += 1;
}
memcpy(array, begin, length);
for( ; begin != end; begin++){
printChar(begin);
int32_t charCount = sprintf(parsePosition,
"%s: | %02" SCNu32 ":%02" SCNu32 ":%02" SCNu32 ".%03" SCNu32 " | ",
this->logMessage.c_str(), loggerTime.hour,
loggerTime.minute,
loggerTime.second,
loggerTime.usecond /1000);
if(charCount < 0) {
printf("ServiceInterfaceBuffer: Failure parsing preamble\r\n");
return "";
}
if(charCount > MAX_PREAMBLE_SIZE) {
printf("ServiceInterfaceBuffer: Char count too large for maximum "
"preamble size");
return "";
}
currentSize += charCount;
if(preambleSize != nullptr) {
*preambleSize = currentSize;
}
return preamble;
}
#endif
#ifdef UT699
#include <framework/osal/rtems/Interrupt.h>
ServiceInterfaceBuffer::ServiceInterfaceBuffer(std::string set_message, uint16_t port) {
ServiceInterfaceBuffer::ServiceInterfaceBuffer(std::string set_message,
uint16_t port) {
this->log_message = set_message;
this->isActive = true;
setp( buf, buf + BUF_SIZE );

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@ -1,51 +1,71 @@
#ifndef FRAMEWORK_SERVICEINTERFACE_SERVICEINTERFACEBUFFER_H_
#define FRAMEWORK_SERVICEINTERFACE_SERVICEINTERFACEBUFFER_H_
#include <framework/returnvalues/HasReturnvaluesIF.h>
#include <iostream>
#include <iosfwd>
#include <sstream>
#include <cstdio>
#include <iomanip>
#ifndef UT699
class ServiceInterfaceBuffer: public std::basic_streambuf<char,
std::char_traits<char> > {
/**
* @brief This is the underlying stream buffer which implements the
* streambuf class and overloads the overflow() and sync() methods
* @details
* This class is used to modify the output of the stream, for example by adding.
* It also calls the char printing function which is implemented in the
* board supply package (BSP).
*/
class ServiceInterfaceBuffer:
public std::streambuf {
friend class ServiceInterfaceStream;
public:
ServiceInterfaceBuffer(std::string set_message, uint16_t port);
static constexpr uint8_t MAX_PREAMBLE_SIZE = 40;
ServiceInterfaceBuffer(std::string setMessage, bool addCrToPreamble,
bool buffered, bool errStream, uint16_t port);
protected:
bool isActive;
// This is called when buffer becomes full. If
// buffer is not used, then this is called every
// time when characters are put to stream.
virtual int overflow(int c = Traits::eof());
//! This is called when buffer becomes full. If
//! buffer is not used, then this is called every
//! time when characters are put to stream.
int overflow(int c = Traits::eof()) override;
// This function is called when stream is flushed,
// for example when std::endl is put to stream.
virtual int sync(void);
//! This function is called when stream is flushed,
//! for example when std::endl is put to stream.
int sync(void) override;
bool isBuffered() const;
private:
// For additional message information
std::string log_message;
//! For additional message information
std::string logMessage;
std::string preamble;
// For EOF detection
typedef std::char_traits<char> Traits;
// Work in buffer mode. It is also possible to work without buffer.
//! This is useful for some terminal programs which do not have
//! implicit carriage return with newline characters.
bool addCrToPreamble;
//! Specifies whether the stream operates in buffered or unbuffered mode.
bool buffered;
//! This specifies to print to stderr and work in unbuffered mode.
bool errStream;
//! Needed for buffered mode.
static size_t const BUF_SIZE = 128;
char buf[BUF_SIZE];
// In this function, the characters are parsed.
//! In this function, the characters are parsed.
void putChars(char const* begin, char const* end);
std::string getPreamble(size_t * preambleSize = nullptr);
};
#endif
#ifdef UT699
class ServiceInterfaceBuffer: public std::basic_streambuf<char,
std::char_traits<char> > {

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@ -1,11 +1,32 @@
#include <framework/serviceinterface/ServiceInterfaceStream.h>
ServiceInterfaceStream::ServiceInterfaceStream(std::string setMessage,
bool addCrToPreamble, bool buffered, bool errStream, uint16_t port) :
std::ostream(&streambuf),
streambuf(setMessage, addCrToPreamble, buffered, errStream, port) {}
void ServiceInterfaceStream::setActive( bool myActive) {
this->buf.isActive = myActive;
this->streambuf.isActive = myActive;
}
ServiceInterfaceStream::ServiceInterfaceStream(std::string set_message,
uint16_t port) :
std::basic_ostream<char, std::char_traits<char> >(&buf), buf(
set_message, port) {
std::string ServiceInterfaceStream::getPreamble() {
return streambuf.getPreamble();
}
void ServiceInterfaceStream::print(std::string error,
bool withPreamble, bool withNewline, bool flush) {
if(not streambuf.isBuffered() and withPreamble) {
*this << getPreamble() << error;
}
else {
*this << error;
}
if(withNewline) {
*this << "\n";
}
// if mode is non-buffered, no need to flush.
if(flush and streambuf.isBuffered()) {
this->flush();
}
}

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@ -3,28 +3,56 @@
#include <framework/serviceinterface/ServiceInterfaceBuffer.h>
#include <iostream>
#include <iosfwd>
#include <sstream>
#include <cstdio>
// Unfortunately, there must be a forward declaration of log_fe
// (MUST be defined in main), to let the system know where to write to.
namespace sif {
extern std::ostream debug;
extern std::ostream info;
extern std::ostream warning;
extern std::ostream error;
}
class ServiceInterfaceStream : public std::basic_ostream< char, std::char_traits< char > > {
protected:
ServiceInterfaceBuffer buf;
/**
* Generic service interface stream which can be used like std::cout or
* std::cerr but has additional capability. Add preamble and timestamp
* to output. Can be run in buffered or unbuffered mode.
*/
class ServiceInterfaceStream : public std::ostream {
public:
ServiceInterfaceStream( std::string set_message, uint16_t port = 1234 );
/**
* This constructor is used by specifying the preamble message.
* Optionally, the output can be directed to stderr and a CR character
* can be prepended to the preamble.
* @param setMessage message of preamble.
* @param addCrToPreamble Useful for applications like Puttty.
* @param buffered specify whether to use buffered mode.
* @param errStream specify which output stream to use (stderr or stdout).
*/
ServiceInterfaceStream(std::string setMessage,
bool addCrToPreamble = false, bool buffered = true,
bool errStream = false, uint16_t port = 1234);
//! An inactive stream will not print anything.
void setActive( bool );
/**
* This can be used to retrieve the preamble in case it should be printed in
* the unbuffered mode.
* @return Preamle consisting of log message and timestamp.
*/
std::string getPreamble();
/**
* This prints an error with a preamble. Useful if using the unbuffered
* mode. Flushes in default mode (prints immediately).
*/
void print(std::string error, bool withPreamble = true,
bool withNewline = true, bool flush = true);
protected:
ServiceInterfaceBuffer streambuf;
};
// Forward declaration of interface streams. These should be instantiated in
// main. They can then be used like std::cout or std::cerr.
namespace sif {
extern ServiceInterfaceStream debug;
extern ServiceInterfaceStream info;
extern ServiceInterfaceStream warning;
extern ServiceInterfaceStream error;
}
#endif /* FRAMEWORK_SERVICEINTERFACE_SERVICEINTERFACESTREAM_H_ */