mirror of
https://github.com/DarkFlippers/unleashed-firmware.git
synced 2024-12-24 13:52:38 +03:00
5190aace88
- BT Service: cleanup code - Dialog: correct release order in file browser - Rpc: rollback to pre #3881 state - Kernel: fix inverted behavior in furi_kernel_is_running - Log: properly take mutex when kernel is not running - Thread: rework tread control block scrubbing procedure, ensure that we don't do stupid things in idle task, add new priority for init task - Timer: add control queue flush method, force flush on stop - Furi: system init task now performs thread scrubbing - BleGlue: add some extra checks - FreeRTOSConfig: fix bunch of issues that were preventing configuration from being properly applied and cleanup
519 lines
16 KiB
C
519 lines
16 KiB
C
/**
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* @file thread.h
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* @brief Furi: Furi Thread API
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*/
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#pragma once
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#include "base.h"
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#include "common_defines.h"
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#include <stdint.h>
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Enumeration of possible FuriThread states.
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*
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* Many of the FuriThread functions MUST ONLY be called when the thread is STOPPED.
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*/
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typedef enum {
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FuriThreadStateStopped, /**< Thread is stopped and is safe to release. Event delivered from system init thread(TCB cleanup routine). It is safe to release thread instance. */
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FuriThreadStateStopping, /**< Thread is stopping. Event delivered from child thread. */
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FuriThreadStateStarting, /**< Thread is starting. Event delivered from parent(self) thread. */
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FuriThreadStateRunning, /**< Thread is running. Event delivered from child thread. */
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} FuriThreadState;
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/**
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* @brief Enumeration of possible FuriThread priorities.
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*/
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typedef enum {
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FuriThreadPriorityIdle = 0, /**< Idle priority */
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FuriThreadPriorityInit = 4, /**< Init System Thread Priority */
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FuriThreadPriorityLowest = 14, /**< Lowest */
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FuriThreadPriorityLow = 15, /**< Low */
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FuriThreadPriorityNormal = 16, /**< Normal, system default */
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FuriThreadPriorityHigh = 17, /**< High */
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FuriThreadPriorityHighest = 18, /**< Highest */
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FuriThreadPriorityIsr =
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(FURI_CONFIG_THREAD_MAX_PRIORITIES - 1), /**< Deferred ISR (highest possible) */
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} FuriThreadPriority;
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/**
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* @brief FuriThread opaque type.
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*/
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typedef struct FuriThread FuriThread;
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/** FuriThreadList type */
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typedef struct FuriThreadList FuriThreadList;
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/**
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* @brief Unique thread identifier type (used by the OS kernel).
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*/
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typedef void* FuriThreadId;
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/**
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* @brief Thread callback function pointer type.
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*
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* The function to be used as a thread callback MUST follow this signature.
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*
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* @param[in,out] context pointer to a user-specified object
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* @return value to be used as the thread return code
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*/
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typedef int32_t (*FuriThreadCallback)(void* context);
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/**
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* @brief Standard output callback function pointer type.
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*
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* The function to be used as a standard output callback MUST follow this signature.
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*
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* @warning The handler MUST process ALL of the provided data before returning.
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*
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* @param[in] data pointer to the data to be written to the standard out
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* @param[in] size size of the data in bytes
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*/
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typedef void (*FuriThreadStdoutWriteCallback)(const char* data, size_t size);
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/**
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* @brief State change callback function pointer type.
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*
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* The function to be used as a state callback MUST follow this
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* signature.
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*
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* @param[in] thread to the FuriThread instance that changed the state
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* @param[in] state identifier of the state the thread has transitioned
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* to
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* @param[in,out] context pointer to a user-specified object
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*/
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typedef void (*FuriThreadStateCallback)(FuriThread* thread, FuriThreadState state, void* context);
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/**
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* @brief Signal handler callback function pointer type.
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*
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* The function to be used as a signal handler callback MUS follow this signature.
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*
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* @param[in] signal value of the signal to be handled by the recipient
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* @param[in,out] arg optional argument (can be of any value, including NULL)
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* @param[in,out] context pointer to a user-specified object
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* @returns true if the signal was handled, false otherwise
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*/
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typedef bool (*FuriThreadSignalCallback)(uint32_t signal, void* arg, void* context);
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/**
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* @brief Create a FuriThread instance.
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*
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* @return pointer to the created FuriThread instance
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*/
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FuriThread* furi_thread_alloc(void);
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/**
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* @brief Create a FuriThread instance (service mode).
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*
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* Service threads are more memory efficient, but have
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* the following limitations:
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*
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* - Cannot return from the callback
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* - Cannot be joined or freed
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* - Stack size cannot be altered
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*
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* @param[in] name human-readable thread name (can be NULL)
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* @param[in] stack_size stack size in bytes (cannot be changed later)
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* @param[in] callback pointer to a function to be executed in this thread
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* @param[in] context pointer to a user-specified object (will be passed to the callback)
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* @return pointer to the created FuriThread instance
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*/
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FuriThread* furi_thread_alloc_service(
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const char* name,
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uint32_t stack_size,
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FuriThreadCallback callback,
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void* context);
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/**
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* @brief Create a FuriThread instance w/ extra parameters.
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*
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* @param[in] name human-readable thread name (can be NULL)
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* @param[in] stack_size stack size in bytes (can be changed later)
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* @param[in] callback pointer to a function to be executed in this thread
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* @param[in] context pointer to a user-specified object (will be passed to the callback)
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* @return pointer to the created FuriThread instance
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*/
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FuriThread* furi_thread_alloc_ex(
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const char* name,
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uint32_t stack_size,
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FuriThreadCallback callback,
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void* context);
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/**
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* @brief Delete a FuriThread instance.
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*
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* The thread MUST be stopped when calling this function.
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*
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* @warning see furi_thread_join for caveats on stopping a thread.
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*
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* @param[in,out] thread pointer to the FuriThread instance to be deleted
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*/
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void furi_thread_free(FuriThread* thread);
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/**
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* @brief Set the name of a FuriThread instance.
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*
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* The thread MUST be stopped when calling this function.
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*
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* @param[in,out] thread pointer to the FuriThread instance to be modified
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* @param[in] name human-readable thread name (can be NULL)
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*/
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void furi_thread_set_name(FuriThread* thread, const char* name);
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/**
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* @brief Set the application ID of a FuriThread instance.
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*
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* The thread MUST be stopped when calling this function.
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*
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* Technically, it is like a "process id", but it is not a system-wide unique identifier.
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* All threads spawned by the same app will have the same appid.
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*
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* @param[in,out] thread pointer to the FuriThread instance to be modified
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* @param[in] appid thread application ID (can be NULL)
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*/
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void furi_thread_set_appid(FuriThread* thread, const char* appid);
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/**
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* @brief Set the stack size of a FuriThread instance.
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*
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* The thread MUST be stopped when calling this function. Additionally, it is NOT possible
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* to change the stack size of a service thread under any circumstances.
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*
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* @param[in,out] thread pointer to the FuriThread instance to be modified
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* @param[in] stack_size stack size in bytes
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*/
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void furi_thread_set_stack_size(FuriThread* thread, size_t stack_size);
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/**
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* @brief Set the user callback function to be executed in a FuriThread.
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*
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* The thread MUST be stopped when calling this function.
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*
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* @param[in,out] thread pointer to the FuriThread instance to be modified
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* @param[in] callback pointer to a user-specified function to be executed in this thread
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*/
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void furi_thread_set_callback(FuriThread* thread, FuriThreadCallback callback);
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/**
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* @brief Set the callback function context.
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*
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* The thread MUST be stopped when calling this function.
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*
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* @param[in,out] thread pointer to the FuriThread instance to be modified
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* @param[in] context pointer to a user-specified object (will be passed to the callback, can be NULL)
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*/
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void furi_thread_set_context(FuriThread* thread, void* context);
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/**
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* @brief Set the priority of a FuriThread.
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*
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* The thread MUST be stopped when calling this function.
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*
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* @param[in,out] thread pointer to the FuriThread instance to be modified
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* @param[in] priority priority level value
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*/
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void furi_thread_set_priority(FuriThread* thread, FuriThreadPriority priority);
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/**
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* @brief Get the priority of a FuriThread.
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*
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* @param[in] thread pointer to the FuriThread instance to be queried
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* @return priority level value
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*/
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FuriThreadPriority furi_thread_get_priority(FuriThread* thread);
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/**
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* @brief Set the priority of the current FuriThread.
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*
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* @param priority priority level value
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*/
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void furi_thread_set_current_priority(FuriThreadPriority priority);
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/**
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* @brief Get the priority of the current FuriThread.
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*
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* @return priority level value
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*/
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FuriThreadPriority furi_thread_get_current_priority(void);
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/**
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* Set the callback function to be executed upon a state thransition of a FuriThread.
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*
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* The thread MUST be stopped when calling this function.
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*
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* @param[in,out] thread pointer to the FuriThread instance to be modified
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* @param[in] callback pointer to a user-specified callback function
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*/
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void furi_thread_set_state_callback(FuriThread* thread, FuriThreadStateCallback callback);
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/**
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* @brief Set the state change callback context.
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*
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* The thread MUST be stopped when calling this function.
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*
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* @param[in,out] thread pointer to the FuriThread instance to be modified
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* @param[in] context pointer to a user-specified object (will be passed to the callback, can be NULL)
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*/
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void furi_thread_set_state_context(FuriThread* thread, void* context);
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/**
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* @brief Get the state of a FuriThread isntance.
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*
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* @param[in] thread pointer to the FuriThread instance to be queried
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* @return thread state value
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*/
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FuriThreadState furi_thread_get_state(FuriThread* thread);
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/**
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* @brief Set a signal handler callback for a FuriThread instance.
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*
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* The thread MUST be stopped when calling this function if calling it from another thread.
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*
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* @param[in,out] thread pointer to the FuriThread instance to be modified
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* @param[in] callback pointer to a user-specified callback function
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* @param[in] context pointer to a user-specified object (will be passed to the callback, can be NULL)
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*/
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void furi_thread_set_signal_callback(
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FuriThread* thread,
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FuriThreadSignalCallback callback,
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void* context);
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/**
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* @brief Get a signal callback for a FuriThread instance.
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*
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* @param[in] thread pointer to the FuriThread instance to be queried
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* @return pointer to the callback function or NULL if none has been set
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*/
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FuriThreadSignalCallback furi_thread_get_signal_callback(const FuriThread* thread);
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/**
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* @brief Send a signal to a FuriThread instance.
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*
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* @param[in] thread pointer to the FuriThread instance to be signaled
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* @param[in] signal signal value to be sent
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* @param[in,out] arg optional argument (can be of any value, including NULL)
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*/
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bool furi_thread_signal(const FuriThread* thread, uint32_t signal, void* arg);
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/**
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* @brief Start a FuriThread instance.
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*
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* The thread MUST be stopped when calling this function.
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*
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* @param[in,out] thread pointer to the FuriThread instance to be started
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*/
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void furi_thread_start(FuriThread* thread);
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/**
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* @brief Wait for a FuriThread to exit.
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*
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* The thread callback function must return in order for the FuriThread instance to become joinable.
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*
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* @warning Use this method only when the CPU is not busy (i.e. when the
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* Idle task receives control), otherwise it will wait forever.
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*
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* @param[in] thread pointer to the FuriThread instance to be joined
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* @return always true
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*/
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bool furi_thread_join(FuriThread* thread);
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/**
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* @brief Get the unique identifier of a FuriThread instance.
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*
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* @param[in] thread pointer to the FuriThread instance to be queried
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* @return unique identifier value or NULL if thread is not running
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*/
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FuriThreadId furi_thread_get_id(FuriThread* thread);
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/**
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* @brief Enable heap usage tracing for a FuriThread.
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*
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* The thread MUST be stopped when calling this function.
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*
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* @param[in,out] thread pointer to the FuriThread instance to be modified
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*/
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void furi_thread_enable_heap_trace(FuriThread* thread);
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/**
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* @brief Disable heap usage tracing for a FuriThread.
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*
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* The thread MUST be stopped when calling this function.
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*
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* @param[in,out] thread pointer to the FuriThread instance to be modified
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*/
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void furi_thread_disable_heap_trace(FuriThread* thread);
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/**
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* @brief Get heap usage by a FuriThread instance.
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*
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* The heap trace MUST be enabled before callgin this function.
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*
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* @param[in] thread pointer to the FuriThread instance to be queried
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* @return heap usage in bytes
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*/
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size_t furi_thread_get_heap_size(FuriThread* thread);
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/**
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* @brief Get the return code of a FuriThread instance.
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*
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* This value is equal to the return value of the thread callback function.
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*
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* The thread MUST be stopped when calling this function.
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*
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* @param[in] thread pointer to the FuriThread instance to be queried
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* @return return code value
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*/
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int32_t furi_thread_get_return_code(FuriThread* thread);
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/**
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* @brief Get the unique identifier of the current FuriThread.
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*
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* @return unique identifier value
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*/
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FuriThreadId furi_thread_get_current_id(void);
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/**
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* @brief Get the FuriThread instance associated with the current thread.
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*
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* @return pointer to a FuriThread instance or NULL if this thread does not belong to Furi
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*/
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FuriThread* furi_thread_get_current(void);
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/**
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* @brief Return control to the scheduler.
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*/
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void furi_thread_yield(void);
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/**
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* @brief Set the thread flags of a FuriThread.
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*
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* Can be used as a simple inter-thread communication mechanism.
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*
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* @param[in] thread_id unique identifier of the thread to be notified
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* @param[in] flags bitmask of thread flags to set
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* @return bitmask combination of previous and newly set flags
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*/
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uint32_t furi_thread_flags_set(FuriThreadId thread_id, uint32_t flags);
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/**
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* @brief Clear the thread flags of the current FuriThread.
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*
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* @param[in] flags bitmask of thread flags to clear
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* @return bitmask of thread flags before clearing
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*/
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uint32_t furi_thread_flags_clear(uint32_t flags);
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/**
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* @brief Get the thread flags of the current FuriThread.
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* @return current bitmask of thread flags
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*/
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uint32_t furi_thread_flags_get(void);
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/**
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* @brief Wait for some thread flags to be set.
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*
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* @see FuriFlag for option and error flags.
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*
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* @param[in] flags bitmask of thread flags to wait for
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* @param[in] options combination of option flags determining the behavior of the function
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* @param[in] timeout maximum time to wait in milliseconds (use FuriWaitForever to wait forever)
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* @return bitmask combination of received thread and error flags
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*/
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uint32_t furi_thread_flags_wait(uint32_t flags, uint32_t options, uint32_t timeout);
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/**
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* @brief Enumerate all threads.
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*
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* @param[out] thread_list pointer to the FuriThreadList container
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*
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* @return true on success, false otherwise
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*/
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bool furi_thread_enumerate(FuriThreadList* thread_list);
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/**
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* @brief Get the name of a thread based on its unique identifier.
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*
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* @param[in] thread_id unique identifier of the thread to be queried
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* @return pointer to a zero-terminated string or NULL
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*/
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const char* furi_thread_get_name(FuriThreadId thread_id);
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/**
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* @brief Get the application id of a thread based on its unique identifier.
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*
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* @param[in] thread_id unique identifier of the thread to be queried
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* @return pointer to a zero-terminated string
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*/
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const char* furi_thread_get_appid(FuriThreadId thread_id);
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/**
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* @brief Get thread stack watermark.
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*
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* @param[in] thread_id unique identifier of the thread to be queried
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* @return stack watermark value
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*/
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uint32_t furi_thread_get_stack_space(FuriThreadId thread_id);
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/**
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* @brief Get the standard output callback for the current thead.
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*
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* @return pointer to the standard out callback function
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*/
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FuriThreadStdoutWriteCallback furi_thread_get_stdout_callback(void);
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/** Set standard output callback for the current thread.
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*
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* @param[in] callback pointer to the callback function or NULL to clear
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*/
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void furi_thread_set_stdout_callback(FuriThreadStdoutWriteCallback callback);
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/** Write data to buffered standard output.
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*
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* @param[in] data pointer to the data to be written
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* @param[in] size data size in bytes
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* @return number of bytes that was actually written
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*/
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size_t furi_thread_stdout_write(const char* data, size_t size);
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/**
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* @brief Flush buffered data to standard output.
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*
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* @return error code value
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*/
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int32_t furi_thread_stdout_flush(void);
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/**
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* @brief Suspend a thread.
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*
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* Suspended threads are no more receiving any of the processor time.
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*
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* @param[in] thread_id unique identifier of the thread to be suspended
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*/
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void furi_thread_suspend(FuriThreadId thread_id);
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/**
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* @brief Resume a thread.
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*
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* @param[in] thread_id unique identifier of the thread to be resumed
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*/
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void furi_thread_resume(FuriThreadId thread_id);
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/**
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* @brief Test if a thread is suspended.
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*
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* @param[in] thread_id unique identifier of the thread to be queried
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* @return true if thread is suspended, false otherwise
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*/
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bool furi_thread_is_suspended(FuriThreadId thread_id);
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#ifdef __cplusplus
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}
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#endif
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