63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/**
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* \file
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*/
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#ifndef KERN_RPC_H
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#define KERN_RPC_H
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#include <stddef.h>
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typedef void* (*rpc_func)(void*); //!< Type of an RPC function
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/**
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* Represents an RPC fumctiom with name
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*/
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typedef struct rpc_func_info {
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char name[32]; //!< THe name of the function
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rpc_func code; //!< A pointer to the code that implements the funtcion
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} rpc_func_info;
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/**
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* Call an RPC function
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* \param pid The PID of the process with the RPC function
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* \param name The name of the function to call
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* \param buf The argument buffer to provide
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* \param size The size of the argument buffer
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* \return the return buffer of the RPC functiom
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*/
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void* kernel_rpc_call(pid_t pid,char* name,void* buf,size_t size);
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/**
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* Register an RPC function
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* \param name The name of the function
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* \param code The code of the function
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*/
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void kernel_rpc_register_func(char* name,rpc_func code);
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/**
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* Deallocate an RPC return buffer
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* \param buf The buffer to deallocate
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* \param size The size of the buffer to deallocate
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*/
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void kernel_rpc_deallocate_buf(void* buf,size_t size);
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/**
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* Set the RPC return buffer for the calling thread & unblock the calling thread
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* \param buf The return buffer
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* \param size The size of the return buffer
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* \note This function must only be called from an RPC thread
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*/
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void kernel_rpc_return(void* buf,size_t size);
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/**
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* Get the number of RPC functions a process has registers
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* \param pid The PID of the process
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* \return the number of RPC functions the process has registered
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*/
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size_t kernel_get_num_rpc_funcs(pid_t pid);
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/**
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* Mark the current process as ready to accept RPC calls
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*/
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void kernel_rpc_mark_as_init();
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#endif
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