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e0654fe409
* Error codes enum added * Adjusted signal api to return error codes instead of bool * Remote api adjusted to work with error codes * Brute force logic adjusted to work with error codes * Other application functions adjust to work with error codes * All task callbacks now return ErrorCode through int32t, which belongs to thread * All scenes now work with error codes * More api functions now return error code * Now signal names are buffered and restored in case of error. * New error code enumeration added. Now least significant byte is left for the button index * Some macro to simplify error setup and error check * Error code checks replaced by macro * Different message is now shown when move failed * Comments updated * Fixed error check * Fixed navigation issue while openning broken files from Favorites * Now search by index also returns index in addition to error code * Remote loading logic adjusted * New error codes added and numbers adjusted * New error message when loading library file instead of signal one * Some more remote loading logic adjusted * New error message on rename fail * Grammar mistake fix * Function signature changed * Function usage adjusted according to new signature Co-authored-by: あく <alleteam@gmail.com>
234 lines
9.3 KiB
C
234 lines
9.3 KiB
C
/**
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* @file infrared_remote.h
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* @brief Infrared remote library.
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*
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* An infrared remote contains zero or more infrared signals which
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* have a (possibly non-unique) name each.
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*
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* The current implementation does load only the names into the memory,
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* while the signals themselves are loaded on-demand one by one. In theory,
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* this should allow for quite large remotes with relatively bulky signals.
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*/
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#pragma once
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#include "infrared_signal.h"
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/**
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* @brief InfraredRemote opaque type declaration.
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*/
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typedef struct InfraredRemote InfraredRemote;
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/**
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* @brief Create a new InfraredRemote instance.
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*
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* @returns pointer to the created instance.
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*/
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InfraredRemote* infrared_remote_alloc(void);
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/**
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* @brief Delete an InfraredRemote instance.
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*
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* @param[in,out] remote pointer to the instance to be deleted.
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*/
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void infrared_remote_free(InfraredRemote* remote);
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/**
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* @brief Reset an InfraredRemote instance.
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*
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* Resetting a remote clears its signal name list and
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* the associated file path.
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*
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* @param[in,out] remote pointer to the instance to be deleted.
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*/
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void infrared_remote_reset(InfraredRemote* remote);
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/**
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* @brief Get an InfraredRemote instance's name.
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*
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* The name is deduced from the file path.
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*
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* The return value remains valid unless one of the following functions is called:
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* - infrared_remote_reset()
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* - infrared_remote_load()
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* - infrared_remote_create()
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*
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* @param[in] remote pointer to the instance to be queried.
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* @returns pointer to a zero-terminated string containing the name.
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*/
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const char* infrared_remote_get_name(const InfraredRemote* remote);
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/**
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* @brief Get an InfraredRemote instance's file path.
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*
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* Same return value validity considerations as infrared_remote_get_name().
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*
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* @param[in] remote pointer to the instance to be queried.
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* @returns pointer to a zero-terminated string containing the path.
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*/
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const char* infrared_remote_get_path(const InfraredRemote* remote);
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/**
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* @brief Get the number of signals listed in an InfraredRemote instance.
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*
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* @param[in] remote pointer to the instance to be queried.
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* @returns number of signals, zero or more
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*/
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size_t infrared_remote_get_signal_count(const InfraredRemote* remote);
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/**
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* @brief Get the name of a signal listed in an InfraredRemote instance.
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*
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* @param[in] remote pointer to the instance to be queried.
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* @param[in] index index of the signal in question. Must be less than the total signal count.
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*/
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const char* infrared_remote_get_signal_name(const InfraredRemote* remote, size_t index);
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/**
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* @brief Get the index of a signal listed in an InfraredRemote instance by its name.
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*
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* @param[in] remote pointer to the instance to be queried.
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* @param[in] name pointer to a zero-terminated string containig the name of the signal in question.
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* @param[out] index pointer to the variable to hold the signal index.
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* @returns true if a signal with the given name was found, false otherwise.
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*/
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bool infrared_remote_get_signal_index(
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const InfraredRemote* remote,
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const char* name,
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size_t* index);
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/**
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* @brief Load a signal listed in an InfraredRemote instance.
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*
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* As mentioned above, the signals are loaded on-demand. The user code must call this function
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* each time it wants to interact with a new signal.
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*
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* @param[in] remote pointer to the instance to load from.
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* @param[out] signal pointer to the signal to load into. Must be allocated.
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* @param[in] index index of the signal to be loaded. Must be less than the total signal count.
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* @return InfraredErrorCodeNone if the signal was successfully loaded, otherwise error code.
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*/
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InfraredErrorCode
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infrared_remote_load_signal(const InfraredRemote* remote, InfraredSignal* signal, size_t index);
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/**
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* @brief Append a signal to the file associated with an InfraredRemote instance.
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*
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* The file path must be somehow initialised first by calling either infrared_remote_load() or
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* infrared_remote_create(). As the name suggests, the signal will be put in the end of the file.
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*
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* @param[in,out] remote pointer to the instance to append to.
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* @param[in] signal pointer to the signal to be appended.
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* @param[in] name pointer to a zero-terminated string containing the name of the signal.
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* @returns InfraredErrorCodeNone if the signal was successfully appended, otherwise error code.
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*/
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InfraredErrorCode infrared_remote_append_signal(
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InfraredRemote* remote,
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const InfraredSignal* signal,
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const char* name);
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/**
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* @brief Insert a signal to the file associated with an InfraredRemote instance.
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*
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* Same behaviour as infrared_remote_append_signal(), but the user code can decide where to
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* put the signal in the file.
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*
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* Index values equal to or greater than the total signal count will result in behaviour
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* identical to infrared_remote_append_signal().
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*
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* @param[in,out] remote pointer to the instance to insert to.
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* @param[in] signal pointer to the signal to be inserted.
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* @param[in] name pointer to a zero-terminated string containing the name of the signal.
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* @param[in] index the index under which the signal shall be inserted.
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* @returns InfraredErrorCodeNone if the signal was successfully inserted, otherwise error
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* code describing what error happened ORed with index pointing which signal caused an error.
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*/
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InfraredErrorCode infrared_remote_insert_signal(
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InfraredRemote* remote,
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const InfraredSignal* signal,
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const char* name,
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size_t index);
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/**
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* @brief Rename a signal in the file associated with an InfraredRemote instance.
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*
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* Only changes the signal's name, but neither its position nor contents.
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*
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* @param[in,out] remote pointer to the instance to be modified.
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* @param[in] index index of the signal to be renamed. Must be less than the total signal count.
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* @param[in] new_name pointer to a zero-terminated string containig the signal's new name.
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* @returns InfraredErrorCodeNone if the signal was successfully renamed, otherwise error code.
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*/
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InfraredErrorCode
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infrared_remote_rename_signal(InfraredRemote* remote, size_t index, const char* new_name);
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/**
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* @brief Change a signal's position in the file associated with an InfraredRemote instance.
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*
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* Only changes the signal's position (index), but neither its name nor contents.
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*
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* @param[in,out] remote pointer to the instance to be modified.
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* @param[in] index index of the signal to be moved. Must be less than the total signal count.
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* @param[in] new_index index of the signal to be moved. Must be less than the total signal count.
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* @returns InfraredErrorCodeNone if the signal was moved successfully, otherwise error
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* code describing what error happened ORed with index pointing which signal caused an error.
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*/
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InfraredErrorCode
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infrared_remote_move_signal(InfraredRemote* remote, size_t index, size_t new_index);
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/**
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* @brief Delete a signal in the file associated with an InfraredRemote instance.
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*
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* @param[in,out] remote pointer to the instance to be modified.
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* @param[in] index index of the signal to be deleted. Must be less than the total signal count.
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* @returns InfraredErrorCodeNone if the signal was successfully deleted, otherwise error
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* code describing what error happened ORed with index pointing which signal caused an error.
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*/
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InfraredErrorCode infrared_remote_delete_signal(InfraredRemote* remote, size_t index);
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/**
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* @brief Create a new file and associate it with an InfraredRemote instance.
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*
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* The instance will be reset and given a new empty file with just the header.
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*
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* @param[in,out] remote pointer to the instance to be assigned with a new file.
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* @param[in] path pointer to a zero-terminated string containing the full file path.
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* @returns InfraredErrorCodeNone if the file was successfully created, otherwise error code.
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*/
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InfraredErrorCode infrared_remote_create(InfraredRemote* remote, const char* path);
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/**
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* @brief Associate an InfraredRemote instance with a file and load the signal names from it.
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*
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* The instance will be reset and fill its signal name list from the given file.
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* The file must already exist and be valid.
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*
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* @param[in,out] remote pointer to the instance to be assigned with an existing file.
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* @param[in] path pointer to a zero-terminated string containing the full file path.
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* @returns InfraredErrorCodeNone if the file was successfully loaded, otherwise error code.
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*/
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InfraredErrorCode infrared_remote_load(InfraredRemote* remote, const char* path);
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/**
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* @brief Rename the file associated with an InfraredRemote instance.
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*
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* Only renames the file, no signals are added, moved or deleted.
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*
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* @param[in,out] remote pointer to the instance to be modified.
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* @param[in] new_path pointer to a zero-terminated string containing the new full file path.
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* @returns InfraredErrorCodeNone if the file was successfully renamed, otherwise error code.
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*/
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InfraredErrorCode infrared_remote_rename(InfraredRemote* remote, const char* new_path);
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/**
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* @brief Remove the file associated with an InfraredRemote instance.
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*
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* This operation is irreversible and fully deletes the remote file
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* from the underlying filesystem.
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* After calling this function, the instance becomes invalid until
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* infrared_remote_create() or infrared_remote_load() are successfully executed.
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*
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* @param[in,out] remote pointer to the instance to be modified.
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* @returns InfraredErrorCodeNone if the file was successfully removed, otherwise error code.
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*/
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InfraredErrorCode infrared_remote_remove(InfraredRemote* remote);
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