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Added placeholder void* filter parameter to icsneo_addMessageCallback and added more documentation for message callback functions

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EricLiu2000
2019-07-30 14:02:34 -04:00
parent 655a483aee
commit 8516a9c8bd
3 changed files with 18 additions and 3 deletions
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include/icsneo/icsneoc.h
+15 -2
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@@ -284,8 +284,21 @@ extern size_t DLLExport icsneo_getPollingMessageLimit(const neodevice_t* device)
*/
extern bool DLLExport icsneo_setPollingMessageLimit(const neodevice_t* device, size_t newLimit);
extern int DLLExport icsneo_addMessageCallback(const neodevice_t* device, void (*callback)(neomessage_t));
/**
* \brief Adds a message callback to the specified device.
* \param[in] device A pointer to the neodevice_t structure specifying the device to operate on.
* \param[in] callback A function pointer with void return type and a single neomessage_t parameter
* \param[in] filter Unused for now. Exists as a placeholder here for future backwards-compatibility.
* \returns the id of the callback added, or -1 if the operation failed.
*/
extern int DLLExport icsneo_addMessageCallback(const neodevice_t* device, void (*callback)(neomessage_t), void* filter);
/**
* \brief Removes a message callback from the specified device.
* \param[in] device A pointer to the neodevice_t structure specifying the device to operate on.
* \param[in] id The id of the callback to remove
* \returns True if the callback was successfully removed.
*/
extern bool DLLExport icsneo_removeMessageCallback(const neodevice_t* device, int id);
/**
@@ -743,7 +756,7 @@ fn_icsneo_getPollingMessageLimit icsneo_getPollingMessageLimit;
typedef bool(*fn_icsneo_setPollingMessageLimit)(const neodevice_t* device, size_t newLimit);
fn_icsneo_setPollingMessageLimit icsneo_setPollingMessageLimit;
typedef int(*fn_icsneo_addMessageCallback)(const neodevice_t* device, void (*callback)(neomessage_t));
typedef int(*fn_icsneo_addMessageCallback)(const neodevice_t* device, void (*callback)(neomessage_t), void* filter);
fn_icsneo_addMessageCallback icsneo_addMessageCallback;
typedef bool(*fn_icsneo_removeMessageCallback)(const neodevice_t* device, int id);