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SCIOPTA - Real-Time Kernel

6-10 Manual Version 4.1 User’s Manual

SCIOPTA - Real-Time Kernel

6 Messages

6.11 Message System Calls

Please consult the SCIOPTA - Kernel, Reference Manual for detailed description of the SCIOPTA system calls.

sc_msgAlloc Allocates a memory buffer of selectable size from a message pool.

sc_msgAllocClr Allocates a memory buffer of selectable size from a message pool and initializes the mes-

sage data to 0.

sc_msgTx Sends a message to a process.

sc_msgTxAlias Sends a message to a process by setting any process ID.

sc_msgRx Receives one ore more defined messages.

sc_msgFree Returns a message to the message pool.

sc_msgAcquire Changes the owner of the message. The caller becomes the owner of the message.

sc_msgAddrGet Returns the process ID of the addressee of the message.

sc_msgHookRegister Registers a message hook.

sc_msgOwnerGet Returns the process ID of the owner of the message.

sc_msgPoolIdGet Returns the pool ID of a message.

sc_msgSizeGet Returns the size of the message buffer.

sc_msgSizeSet Modifies the size of a message buffer.

sc_msgSndGet Returns the process ID of the sender of the message.

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CompuLab SBC-X270 Manual de usuario Pagina 68