![compiling semaphor c compiling semaphor c](https://jackpotsuomi.com/images/5ac5c96b844877f11c14c9b319f4ef48.jpg)
Writer.c:(.text._write_r+0x10): undefined reference to `_write' Just retried building this on Photon OS 2.0.0-rc.4, I get these errors still: /Users/wjsteen/.particle/toolchains/gcc-arm/9.2.1/bin/./lib/gcc/arm-none-eabi/9.2.1/././././arm-none-eabi/bin/ld: /Users/wjsteen/.particle/toolchains/gcc-arm/9.2.1/bin/./lib/gcc/arm-none-eabi/9.2.1/././././arm-none-eabi/lib/thumb/v7-m/nofp/libg_nano.a(lib_a-writer.o): in function `_write_r': Users/wjsteen/Documents/Intelligent_Furniture_Project/VSC_Projects/littleFS-test//src/Adafruit_LittleFS.cpp:47:65: error: ‘xSemaphoreCreateMutexStatic’ was not declared in this scope Users/wjsteen/Documents/Intelligent_Furniture_Project/VSC_Projects/littleFS-test//src/Adafruit_LittleFS.cpp:47:47: error: ‘class Adafruit_LittleFS’ has no member named ‘_MutexStorageSpace’ _mutex = xSemaphoreCreateMutexStatic(&this->_MutexStorageSpace) Users/wjsteen/Documents/Intelligent_Furniture_Project/VSC_Projects/littleFS-test//src/Adafruit_LittleFS.cpp:47:3: error: ‘_mutex’ was not declared in this scope Users/wjsteen/Documents/Intelligent_Furniture_Project/VSC_Projects/littleFS-test//src/Adafruit_LittleFS.cpp:44:15: error: ‘varclr’ was not declared in this scope Users/wjsteen/Documents/Intelligent_Furniture_Project/VSC_Projects/littleFS-test//src/Adafruit_LittleFS.cpp: In constructor ‘Adafruit_LittleFS::Adafruit_LittleFS(lfs_config*)’: Users/wjsteen/Documents/Intelligent_Furniture_Project/VSC_Projects/littleFS-test//src/Adafruit_LittleFS.h:81:45: error: ‘_mutex’ was not declared in this scope
![compiling semaphor c compiling semaphor c](https://www.it2051229.com/data_solutions/cthreadssemaphores/screenshot3.png)
Users/wjsteen/Documents/Intelligent_Furniture_Project/VSC_Projects/littleFS-test//src/Adafruit_LittleFS.h: In member function ‘void Adafruit_LittleFS::_lockFS()’: Users/wjsteen/Documents/Intelligent_Furniture_Project/VSC_Projects/littleFS-test//src/Adafruit_LittleFS.h:91:5: error: ‘StaticSemaphore_t’ does not name a type Users/wjsteen/Documents/Intelligent_Furniture_Project/VSC_Projects/littleFS-test//src/Adafruit_LittleFS.h:88:5: error: ‘SemaphoreHandle_t’ does not name a type In file included from /Users/wjsteen/Documents/Intelligent_Furniture_Project/VSC_Projects/littleFS-test//src/Adafruit_LittleFS.cpp:27:0: Could someone point me towards a missing include? I get the following errors which are related to FreeRTOS missing semaphore definitions.
![compiling semaphor c compiling semaphor c](https://image.slideserve.com/205344/implementation-of-monitors-using-semaphores-l.jpg)
I am trying to build the Adafruit_LittleFS for a SPIFlash. semTryWait :: Semaphore -> IO Bool semTryWait ( Semaphore fptr ) = withForeignPtr fptr semTrywait' where semTrywait' sem = do res IO () semThreadWait sem = do res IO () semPost ( Semaphore fptr ) = withForeignPtr fptr semPost' where semPost' sem = throwErrnoIfMinus1Retry_ "semPost" $ sem_post sem - | Return the semaphore's current value.Seeing as Particle don’t want to expose littleFS to users and I need a fail safe file system for SPI Flash. Immediately return - False if it is not available. semWait :: Semaphore -> IO () semWait ( Semaphore fptr ) = withForeignPtr fptr semWait' where semWait' sem = throwErrnoIfMinus1Retry_ "semWait" $ sem_wait sem - | Attempt to lock the semaphore without blocking. If this is not the behaviour you want, - use semThreadWait instead. Since this - is done through a system call, this will block the *entire runtime*, - not just the current thread. Dist-install/build/System/Posix/Semaphore.hs semOpen' cname = do sem IO () semUnlink name = withCAString name semUnlink' where semUnlink' cname = throwErrnoPathIfMinus1_ "semUnlink" name $ sem_unlink cname - | Lock the semaphore, blocking until it becomes available.