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Linux CommandExecutor

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The CommandExecutor helper class can execute shell commands in blocking and non-blocking mode
This class is able to execute processes by using the Linux popen call. It also has the capability of writing
the read output of a process into a provided ring buffer.

The executor works by first loading the command which should be executed and specifying whether
it should be executed blocking or non-blocking. After that, execution can be started with the execute call.

Using non-blocking mode allows to execute commands which might take a longer time in the background,
and allowing the user thread to check completion status with the check function

Moved to HAL like requested in code review and unit tested with failing commands as well.
Also, Linux HAL components are compiled by default now unless explicitely disabled.
This commit is contained in:
Robin Müller
2022-01-26 12:11:52 +01:00
parent bd64a43819
commit 371ff931bf
22 changed files with 608 additions and 57 deletions
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32
hal/src/fsfw_hal/linux/i2c/I2cComIF.cpp
View File

@ -1,8 +1,10 @@
#include "fsfw/FSFW.h"
#include "fsfw_hal/linux/i2c/I2cComIF.h"
#include "fsfw_hal/linux/utility.h"
#include "fsfw_hal/linux/UnixFileGuard.h"
#include "fsfw/serviceinterface/ServiceInterface.h"
#include "fsfw/serviceinterface.h"
#include <unistd.h>
#include <fcntl.h>
@ -24,12 +26,16 @@ ReturnValue_t I2cComIF::initializeInterface(CookieIF* cookie) {
std::string deviceFile;
if(cookie == nullptr) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "I2cComIF::initializeInterface: Invalid cookie!" << std::endl;
#endif
return NULLPOINTER;
}
I2cCookie* i2cCookie = dynamic_cast<I2cCookie*>(cookie);
if(i2cCookie == nullptr) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "I2cComIF::initializeInterface: Invalid I2C cookie!" << std::endl;
#endif
return NULLPOINTER;
}
@ -41,15 +47,19 @@ ReturnValue_t I2cComIF::initializeInterface(CookieIF* cookie) {
I2cInstance i2cInstance = {std::vector<uint8_t>(maxReplyLen), 0};
auto statusPair = i2cDeviceMap.emplace(i2cAddress, i2cInstance);
if (not statusPair.second) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "I2cComIF::initializeInterface: Failed to insert device with address " <<
i2cAddress << "to I2C device " << "map" << std::endl;
#endif
return HasReturnvaluesIF::RETURN_FAILED;
}
return HasReturnvaluesIF::RETURN_OK;
}
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "I2cComIF::initializeInterface: Device with address " << i2cAddress <<
"already in use" << std::endl;
#endif
return HasReturnvaluesIF::RETURN_FAILED;
}
@ -61,8 +71,10 @@ ReturnValue_t I2cComIF::sendMessage(CookieIF *cookie,
std::string deviceFile;
if(sendData == nullptr) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "I2cComIF::sendMessage: Send Data is nullptr"
<< std::endl;
#endif
return HasReturnvaluesIF::RETURN_FAILED;
}
@ -72,15 +84,19 @@ ReturnValue_t I2cComIF::sendMessage(CookieIF *cookie,
I2cCookie* i2cCookie = dynamic_cast<I2cCookie*>(cookie);
if(i2cCookie == nullptr) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "I2cComIF::sendMessage: Invalid I2C Cookie!" << std::endl;
#endif
return NULLPOINTER;
}
address_t i2cAddress = i2cCookie->getAddress();
i2cDeviceMapIter = i2cDeviceMap.find(i2cAddress);
if (i2cDeviceMapIter == i2cDeviceMap.end()) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "I2cComIF::sendMessage: i2cAddress of Cookie not "
<< "registered in i2cDeviceMap" << std::endl;
#endif
return HasReturnvaluesIF::RETURN_FAILED;
}
@ -94,10 +110,12 @@ ReturnValue_t I2cComIF::sendMessage(CookieIF *cookie,
return result;
}
if (write(fd, sendData, sendLen) != (int)sendLen) {
if (write(fd, sendData, sendLen) != static_cast<int>(sendLen)) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "I2cComIF::sendMessage: Failed to send data to I2C "
"device with error code " << errno << ". Error description: "
<< strerror(errno) << std::endl;
#endif
return HasReturnvaluesIF::RETURN_FAILED;
}
return HasReturnvaluesIF::RETURN_OK;
@ -119,7 +137,9 @@ ReturnValue_t I2cComIF::requestReceiveMessage(CookieIF *cookie,
I2cCookie* i2cCookie = dynamic_cast<I2cCookie*>(cookie);
if(i2cCookie == nullptr) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "I2cComIF::requestReceiveMessage: Invalid I2C Cookie!" << std::endl;
#endif
i2cDeviceMapIter->second.replyLen = 0;
return NULLPOINTER;
}
@ -127,8 +147,10 @@ ReturnValue_t I2cComIF::requestReceiveMessage(CookieIF *cookie,
address_t i2cAddress = i2cCookie->getAddress();
i2cDeviceMapIter = i2cDeviceMap.find(i2cAddress);
if (i2cDeviceMapIter == i2cDeviceMap.end()) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "I2cComIF::requestReceiveMessage: i2cAddress of Cookie not "
<< "registered in i2cDeviceMap" << std::endl;
#endif
i2cDeviceMapIter->second.replyLen = 0;
return HasReturnvaluesIF::RETURN_FAILED;
}
@ -156,7 +178,9 @@ ReturnValue_t I2cComIF::requestReceiveMessage(CookieIF *cookie,
<< requestLen << " bytes" << std::endl;
#endif
i2cDeviceMapIter->second.replyLen = 0;
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::debug << "I2cComIF::requestReceiveMessage: Read " << readLen << " of " << requestLen << " bytes" << std::endl;
#endif
return HasReturnvaluesIF::RETURN_FAILED;
}
@ -168,15 +192,19 @@ ReturnValue_t I2cComIF::readReceivedMessage(CookieIF *cookie,
uint8_t **buffer, size_t* size) {
I2cCookie* i2cCookie = dynamic_cast<I2cCookie*>(cookie);
if(i2cCookie == nullptr) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "I2cComIF::readReceivedMessage: Invalid I2C Cookie!" << std::endl;
#endif
return NULLPOINTER;
}
address_t i2cAddress = i2cCookie->getAddress();
i2cDeviceMapIter = i2cDeviceMap.find(i2cAddress);
if (i2cDeviceMapIter == i2cDeviceMap.end()) {
#if FSFW_CPP_OSTREAM_ENABLED == 1
sif::error << "I2cComIF::readReceivedMessage: i2cAddress of Cookie not "
<< "found in i2cDeviceMap" << std::endl;
#endif
return HasReturnvaluesIF::RETURN_FAILED;
}
*buffer = i2cDeviceMapIter->second.replyBuffer.data();